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12248 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Blagovest Kolenichev
|
2973dadc19 |
Merge android-4.14.56 (818299f) into msm-4.14
* refs/heads/tmp-818299f Linux 4.14.56 f2fs: give message and set need_fsck given broken node id loop: remember whether sysfs_create_group() was done RDMA/ucm: Mark UCM interface as BROKEN PM / hibernate: Fix oops at snapshot_write() loop: add recursion validation to LOOP_CHANGE_FD netfilter: x_tables: initialise match/target check parameter struct netfilter: nf_queue: augment nfqa_cfg_policy uprobes/x86: Remove incorrect WARN_ON() in uprobe_init_insn() crypto: x86/salsa20 - remove x86 salsa20 implementations nvme-pci: Remap CMB SQ entries on every controller reset xen: setup pv irq ops vector earlier iw_cxgb4: correctly enforce the max reg_mr depth i2c: tegra: Fix NACK error handling IB/hfi1: Fix incorrect mixing of ERR_PTR and NULL return values tools build: fix # escaping in .cmd files for future Make arm64: neon: Fix function may_use_simd() return error status kbuild: delete INSTALL_FW_PATH from kbuild documentation tracing: Reorder display of TGID to be after PID mm: do not bug_on on incorrect length in __mm_populate() fs, elf: make sure to page align bss in load_elf_library fs/proc/task_mmu.c: fix Locked field in /proc/pid/smaps* mm: do not drop unused pages when userfaultd is running ALSA: hda - Handle pm failure during hotplug ALSA: hda/realtek - two more lenovo models need fixup of MIC_LOCATION scsi: megaraid_sas: fix selection of reply queue scsi: megaraid_sas: Create separate functions to allocate ctrl memory scsi: megaraid_sas: replace is_ventura with adapter_type checks scsi: megaraid_sas: replace instance->ctrl_context checks with instance->adapter_type scsi: megaraid_sas: use adapter_type for all gen controllers genirq/affinity: assign vectors to all possible CPUs Fix up non-directory creation in SGID directories devpts: resolve devpts bind-mounts devpts: hoist out check for DEVPTS_SUPER_MAGIC xhci: xhci-mem: off by one in xhci_stream_id_to_ring() usb: quirks: add delay quirks for Corsair Strafe USB: serial: mos7840: fix status-register error handling USB: yurex: fix out-of-bounds uaccess in read handler USB: serial: keyspan_pda: fix modem-status error handling USB: serial: cp210x: add another USB ID for Qivicon ZigBee stick USB: serial: ch341: fix type promotion bug in ch341_control_in() ahci: Disable LPM on Lenovo 50 series laptops with a too old BIOS vmw_balloon: fix inflation with batching ata: Fix ZBC_OUT all bit handling ata: Fix ZBC_OUT command block check staging: r8822be: Fix RTL8822be can't find any wireless AP staging: rtl8723bs: Prevent an underflow in rtw_check_beacon_data(). ibmasm: don't write out of bounds in read handler mmc: dw_mmc: fix card threshold control configuration mmc: sdhci-esdhc-imx: allow 1.8V modes without 100/200MHz pinctrl states MIPS: Fix ioremap() RAM check MIPS: Use async IPIs for arch_trigger_cpumask_backtrace() MIPS: Call dump_stack() from show_regs() ASoC: mediatek: preallocate pages use platform device media: rc: mce_kbd decoder: fix stuck keys ANDROID: Fix massive cpufreq_times memory leaks ANDROID: Reduce use of #ifdef CONFIG_CPU_FREQ_TIMES Change-Id: I8181c52138e12e6cdd25b9cf0ffba19469593ab2 Signed-off-by: Blagovest Kolenichev <bkolenichev@codeaurora.org> Signed-off-by: Isaac J. Manjarres <isaacm@codeaurora.org> |
||
Greg Kroah-Hartman
|
818299f6bd |
This is the 4.14.56 stable release
-----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEZH8oZUiU471FcZm+ONu9yGCSaT4FAltNuVYACgkQONu9yGCS aT7kTA/+MRHC5oFvdnhSsF6jAHsY9rgJNQXPtZCFhZnHhhYHtubQ2OJOmSZ7IfM0 9yhz/7vijC9+tLufXQxQnu2UUL3ojNu1+l+q9s0U1GUzNiONlJ9q/CyB4xjXFRCS 1RdiDZaQbIqUCYs38UCTsEJF65uKjzQ6dpF21XdIXp5FPxgiZawo4HpjQRJswbAl Du97ybMEPN3XnAn207GjZwy58ubRLF5HDG1sqNGfjVWJ7oMTi+QJOCvY3PJtU3j2 unS0qjxLU432rOyDfaJK7Yj9s61zu0PurbJrHo+dw3O3hd/Og7soqoqohUEjZWXd z7jjrntXZOZ/0st2yHmygfAPUJm/8jsh7Pd39Jgyfeu/3Clo51gO494rwATQsyE5 mwIdllyzyMNBEJI2F2fxE60WlFsbTjeBOX3BaOwnF8pGRJWsCAfbFknRbuKh1fO5 czFbUSOi00POw4WHT1rxV9u0yDBXmP47fy9zHquOim+PfK8pFvWuf6GSFjvqRTv8 20w1w7eixMi09ZXOkgTJ3S00MKHSpxoaenI3n2NcEVVRgDEVfh3C/zelvvfCDMHD i36DN39Sj41PNA/R4n0TIA4W+ab9qBVzQl16yaj9JURR2rA92GyMVC1+Xjqo1Py3 GRFOf2Gprlm0/vfkiRsMu9coAJuKV6+8fHXQU4mzHulKUaDWuJ0= =/wBU -----END PGP SIGNATURE----- Merge 4.14.56 into android-4.14 Changes in 4.14.56 media: rc: mce_kbd decoder: fix stuck keys ASoC: mediatek: preallocate pages use platform device MIPS: Call dump_stack() from show_regs() MIPS: Use async IPIs for arch_trigger_cpumask_backtrace() MIPS: Fix ioremap() RAM check mmc: sdhci-esdhc-imx: allow 1.8V modes without 100/200MHz pinctrl states mmc: dw_mmc: fix card threshold control configuration ibmasm: don't write out of bounds in read handler staging: rtl8723bs: Prevent an underflow in rtw_check_beacon_data(). staging: r8822be: Fix RTL8822be can't find any wireless AP ata: Fix ZBC_OUT command block check ata: Fix ZBC_OUT all bit handling vmw_balloon: fix inflation with batching ahci: Disable LPM on Lenovo 50 series laptops with a too old BIOS USB: serial: ch341: fix type promotion bug in ch341_control_in() USB: serial: cp210x: add another USB ID for Qivicon ZigBee stick USB: serial: keyspan_pda: fix modem-status error handling USB: yurex: fix out-of-bounds uaccess in read handler USB: serial: mos7840: fix status-register error handling usb: quirks: add delay quirks for Corsair Strafe xhci: xhci-mem: off by one in xhci_stream_id_to_ring() devpts: hoist out check for DEVPTS_SUPER_MAGIC devpts: resolve devpts bind-mounts Fix up non-directory creation in SGID directories genirq/affinity: assign vectors to all possible CPUs scsi: megaraid_sas: use adapter_type for all gen controllers scsi: megaraid_sas: replace instance->ctrl_context checks with instance->adapter_type scsi: megaraid_sas: replace is_ventura with adapter_type checks scsi: megaraid_sas: Create separate functions to allocate ctrl memory scsi: megaraid_sas: fix selection of reply queue ALSA: hda/realtek - two more lenovo models need fixup of MIC_LOCATION ALSA: hda - Handle pm failure during hotplug mm: do not drop unused pages when userfaultd is running fs/proc/task_mmu.c: fix Locked field in /proc/pid/smaps* fs, elf: make sure to page align bss in load_elf_library mm: do not bug_on on incorrect length in __mm_populate() tracing: Reorder display of TGID to be after PID kbuild: delete INSTALL_FW_PATH from kbuild documentation arm64: neon: Fix function may_use_simd() return error status tools build: fix # escaping in .cmd files for future Make IB/hfi1: Fix incorrect mixing of ERR_PTR and NULL return values i2c: tegra: Fix NACK error handling iw_cxgb4: correctly enforce the max reg_mr depth xen: setup pv irq ops vector earlier nvme-pci: Remap CMB SQ entries on every controller reset crypto: x86/salsa20 - remove x86 salsa20 implementations uprobes/x86: Remove incorrect WARN_ON() in uprobe_init_insn() netfilter: nf_queue: augment nfqa_cfg_policy netfilter: x_tables: initialise match/target check parameter struct loop: add recursion validation to LOOP_CHANGE_FD PM / hibernate: Fix oops at snapshot_write() RDMA/ucm: Mark UCM interface as BROKEN loop: remember whether sysfs_create_group() was done f2fs: give message and set need_fsck given broken node id Linux 4.14.56 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> |
||
Michal Hocko
|
81ebc9decd |
mm: do not bug_on on incorrect length in __mm_populate()
commit bb177a732c4369bb58a1fe1df8f552b6f0f7db5f upstream. syzbot has noticed that a specially crafted library can easily hit VM_BUG_ON in __mm_populate kernel BUG at mm/gup.c:1242! invalid opcode: 0000 [#1] SMP CPU: 2 PID: 9667 Comm: a.out Not tainted 4.18.0-rc3 #644 Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 05/19/2017 RIP: 0010:__mm_populate+0x1e2/0x1f0 Code: 55 d0 65 48 33 14 25 28 00 00 00 89 d8 75 21 48 83 c4 20 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 75 18 f1 ff 0f 0b e8 6e 18 f1 ff <0f> 0b 31 db eb c9 e8 93 06 e0 ff 0f 1f 00 55 48 89 e5 53 48 89 fb Call Trace: vm_brk_flags+0xc3/0x100 vm_brk+0x1f/0x30 load_elf_library+0x281/0x2e0 __ia32_sys_uselib+0x170/0x1e0 do_fast_syscall_32+0xca/0x420 entry_SYSENTER_compat+0x70/0x7f The reason is that the length of the new brk is not page aligned when we try to populate the it. There is no reason to bug on that though. do_brk_flags already aligns the length properly so the mapping is expanded as it should. All we need is to tell mm_populate about it. Besides that there is absolutely no reason to to bug_on in the first place. The worst thing that could happen is that the last page wouldn't get populated and that is far from putting system into an inconsistent state. Fix the issue by moving the length sanitization code from do_brk_flags up to vm_brk_flags. The only other caller of do_brk_flags is brk syscall entry and it makes sure to provide the proper length so t here is no need for sanitation and so we can use do_brk_flags without it. Also remove the bogus BUG_ONs. [osalvador@techadventures.net: fix up vm_brk_flags s@request@len@] Link: http://lkml.kernel.org/r/20180706090217.GI32658@dhcp22.suse.cz Signed-off-by: Michal Hocko <mhocko@suse.com> Reported-by: syzbot <syzbot+5dcb560fe12aa5091c06@syzkaller.appspotmail.com> Tested-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Reviewed-by: Oscar Salvador <osalvador@suse.de> Cc: Zi Yan <zi.yan@cs.rutgers.edu> Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Cc: Michael S. Tsirkin <mst@redhat.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: "Huang, Ying" <ying.huang@intel.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Christian Borntraeger
|
684a2d8ed5 |
mm: do not drop unused pages when userfaultd is running
commit bce73e4842390f7b7309c8e253e139db71288ac3 upstream. KVM guests on s390 can notify the host of unused pages. This can result in pte_unused callbacks to be true for KVM guest memory. If a page is unused (checked with pte_unused) we might drop this page instead of paging it. This can have side-effects on userfaultd, when the page in question was already migrated: The next access of that page will trigger a fault and a user fault instead of faulting in a new and empty zero page. As QEMU does not expect a userfault on an already migrated page this migration will fail. The most straightforward solution is to ignore the pte_unused hint if a userfault context is active for this VMA. Link: http://lkml.kernel.org/r/20180703171854.63981-1-borntraeger@de.ibm.com Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Mike Rapoport <rppt@linux.vnet.ibm.com> Cc: Janosch Frank <frankja@linux.ibm.com> Cc: David Hildenbrand <david@redhat.com> Cc: Cornelia Huck <cohuck@redhat.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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qctecmdr Service
|
de4318de7e | Merge "Merge android-4.14.55 (2e9aed1) into msm-4.14" | ||
Isaac J. Manjarres
|
179f58aa64 |
Merge android-4.14.55 (2e9aed1) into msm-4.14
* remotes/origin/tmp-2e9aed1: Linux 4.14.55 Revert mm/vmstat.c: fix vmstat_update() preemption BUG sched, tracing: Fix trace_sched_pi_setprio() for deboosting staging: comedi: quatech_daqp_cs: fix no-op loop daqp_ao_insn_write() netfilter: nf_log: don't hold nf_log_mutex during user access mtd: cfi_cmdset_0002: Change erase functions to check chip good only mtd: cfi_cmdset_0002: Change erase functions to retry for error mtd: cfi_cmdset_0002: Change definition naming to retry write operation dm: prevent DAX mounts if not supported dm: set QUEUE_FLAG_DAX accordingly in dm_table_set_restrictions() dax: check for QUEUE_FLAG_DAX in bdev_dax_supported() dax: change bdev_dax_supported() to support boolean returns fs: allow per-device dax status checking for filesystems mtd: rawnand: mxc: set spare area size register explicitly media: cx25840: Use subdev host data for PLL override Kbuild: fix # escaping in .cmd files for future Make Revert "dpaa_eth: fix error in dpaa_remove()" f2fs: truncate preallocated blocks in error case media: vb2: core: Finish buffers at the end of the stream mm: hwpoison: disable memory error handling on 1GB hugepage irq/core: Fix boot crash when the irqaffinity= boot parameter is passed on CPUMASK_OFFSTACK=y kernels(v1) HID: debug: check length before copy_to_user() HID: hiddev: fix potential Spectre v1 HID: i2c-hid: Fix "incomplete report" noise block: cope with WRITE ZEROES failing in blkdev_issue_zeroout() block: factor out __blkdev_issue_zero_pages() ext4: check superblock mapped prior to committing ext4: add more mount time checks of the superblock ext4: add more inode number paranoia checks ext4: avoid running out of journal credits when appending to an inline file ext4: never move the system.data xattr out of the inode body ext4: clear i_data in ext4_inode_info when removing inline data ext4: include the illegal physical block in the bad map ext4_error msg ext4: verify the depth of extent tree in ext4_find_extent() ext4: only look at the bg_flags field if it is valid ext4: always check block group bounds in ext4_init_block_bitmap() ext4: make sure bitmaps and the inode table don't overlap with bg descriptors ext4: always verify the magic number in xattr blocks ext4: add corruption check in ext4_xattr_set_entry() jbd2: don't mark block as modified if the handle is out of credits drm/udl: fix display corruption of the last line drm: Use kvzalloc for allocating blob property memory cifs: Fix slab-out-of-bounds in send_set_info() on SMB2 ACE setting cifs: Fix infinite loop when using hard mount option cifs: Fix memory leak in smb2_set_ea() cifs: Fix use after free of a mid_q_entry vfio: Use get_user_pages_longterm correctly drbd: fix access after free s390: Correct register corruption in critical section cleanup scsi: target: Fix truncated PR-in ReadKeys response scsi: sg: mitigate read/write abuse tracing: Fix missing return symbol in function_graph output mm: hugetlb: yield when prepping struct pages userfaultfd: hugetlbfs: fix userfaultfd_huge_must_wait() pte access arm64: fix show_data fallout from KERN_CONT changes Change-Id: I020c73a87142daffcc219230e476069e3bc98d2d Signed-off-by: Isaac J. Manjarres <isaacm@codeaurora.org> |
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Liam Mark
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c3fea2d9c7 |
mm, oom: rate limit oom reaper logging
The oom reaper logging is sometimes flooding the logs and causing a watchdog timeout, so rate limit the oom reaper logging. Change-Id: Ic4ddf2d6273839e43501f08f51b1c6406d7cc4d2 Signed-off-by: Liam Mark <lmark@codeaurora.org> |
||
|
qctecmdr Service
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8946e7a5cc | Merge "defconfig: sm8150: Enable memory region offlining support" | ||
|
Greg Kroah-Hartman
|
2e9aed164f |
This is the 4.14.55 stable release
-----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEZH8oZUiU471FcZm+ONu9yGCSaT4FAltGFEUACgkQONu9yGCS aT5jMw//Y70OdIlEj7R/AjZZqAzwczZQhW/00ytJvCUZPzTazEhXxSbyc4d65VjQ 4mdrl6nfYLOR0bF8gdWlGFCZRc405CXAc9INvixEUbj0w5MPWPQOmqT9gyOCg+Mu Iv5FXXEhk+H5vCIpN7g2PnoPFDFX7cC1vlqtbFfKRXCyGUZirmPl2vVcgID6scWN gB3+oWWcgNaCWuyz+tXrzzEQOJhMW84Y55wga1T1gjpE3yBreMU0j6DOXPTxrf/E VFs/h75ObR9yNB8O38d7zPrzQpaJHK1rhtqpJB+Thftxr0nO3Bn4Bg2FjnzMp8qP HNQKseeFfn0C7uNPjl3Pc5DH5BWfveOUPfbUHzuzyQZbK8E5O22BLhMxu+yS9PO2 xzlN0OF8vP1VIR+gs12qopF9aGRCBM88YVCALb93fK+vEHhVOOa1kmfyTu3rCf/p M3rqw1YuW3TSwcskeL2MlSjnmxmM7HR/PmLJGD4xdmCwQtLAljVTD/sIUZOiPchh fH8CQc6QJEWo25oNSvdjQTdQtTTORMaU7JZ8TxEfbE7DRb4ziBpLNIxAanYc8vEw qXRXkigTdOW/Fb2X7vLxANXxXc5Xd4gRxjRJZfvN0ekw8GSkyk7wpNyURGDGt9UY kPMal06BUg7zEjHc16xVhrIed7PzE+FfTTzEspBOtbMkVzmHCTk= =dpg4 -----END PGP SIGNATURE----- Merge 4.14.55 into android-4.14 Changes in 4.14.55 userfaultfd: hugetlbfs: fix userfaultfd_huge_must_wait() pte access mm: hugetlb: yield when prepping struct pages tracing: Fix missing return symbol in function_graph output scsi: sg: mitigate read/write abuse scsi: target: Fix truncated PR-in ReadKeys response s390: Correct register corruption in critical section cleanup drbd: fix access after free vfio: Use get_user_pages_longterm correctly cifs: Fix use after free of a mid_q_entry cifs: Fix memory leak in smb2_set_ea() cifs: Fix infinite loop when using hard mount option cifs: Fix slab-out-of-bounds in send_set_info() on SMB2 ACE setting drm: Use kvzalloc for allocating blob property memory drm/udl: fix display corruption of the last line jbd2: don't mark block as modified if the handle is out of credits ext4: add corruption check in ext4_xattr_set_entry() ext4: always verify the magic number in xattr blocks ext4: make sure bitmaps and the inode table don't overlap with bg descriptors ext4: always check block group bounds in ext4_init_block_bitmap() ext4: only look at the bg_flags field if it is valid ext4: verify the depth of extent tree in ext4_find_extent() ext4: include the illegal physical block in the bad map ext4_error msg ext4: clear i_data in ext4_inode_info when removing inline data ext4: never move the system.data xattr out of the inode body ext4: avoid running out of journal credits when appending to an inline file ext4: add more inode number paranoia checks ext4: add more mount time checks of the superblock ext4: check superblock mapped prior to committing block: factor out __blkdev_issue_zero_pages() block: cope with WRITE ZEROES failing in blkdev_issue_zeroout() HID: i2c-hid: Fix "incomplete report" noise HID: hiddev: fix potential Spectre v1 HID: debug: check length before copy_to_user() irq/core: Fix boot crash when the irqaffinity= boot parameter is passed on CPUMASK_OFFSTACK=y kernels(v1) mm: hwpoison: disable memory error handling on 1GB hugepage media: vb2: core: Finish buffers at the end of the stream f2fs: truncate preallocated blocks in error case Revert "dpaa_eth: fix error in dpaa_remove()" Kbuild: fix # escaping in .cmd files for future Make media: cx25840: Use subdev host data for PLL override mtd: rawnand: mxc: set spare area size register explicitly fs: allow per-device dax status checking for filesystems dax: change bdev_dax_supported() to support boolean returns dax: check for QUEUE_FLAG_DAX in bdev_dax_supported() dm: set QUEUE_FLAG_DAX accordingly in dm_table_set_restrictions() dm: prevent DAX mounts if not supported mtd: cfi_cmdset_0002: Change definition naming to retry write operation mtd: cfi_cmdset_0002: Change erase functions to retry for error mtd: cfi_cmdset_0002: Change erase functions to check chip good only netfilter: nf_log: don't hold nf_log_mutex during user access staging: comedi: quatech_daqp_cs: fix no-op loop daqp_ao_insn_write() sched, tracing: Fix trace_sched_pi_setprio() for deboosting Revert mm/vmstat.c: fix vmstat_update() preemption BUG Linux 4.14.55 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> |
||
Sebastian Andrzej Siewior
|
b3ef356a09 |
Revert mm/vmstat.c: fix vmstat_update() preemption BUG
commit 28557cc106e6d2aa8b8c5c7687ea9f8055ff3911 upstream.
Revert commit c7f26ccfb2c3 ("mm/vmstat.c: fix vmstat_update() preemption
BUG"). Steven saw a "using smp_processor_id() in preemptible" message
and added a preempt_disable() section around it to keep it quiet. This
is not the right thing to do it does not fix the real problem.
vmstat_update() is invoked by a kworker on a specific CPU. This worker
it bound to this CPU. The name of the worker was "kworker/1:1" so it
should have been a worker which was bound to CPU1. A worker which can
run on any CPU would have a `u' before the first digit.
smp_processor_id() can be used in a preempt-enabled region as long as
the task is bound to a single CPU which is the case here. If it could
run on an arbitrary CPU then this is the problem we have an should seek
to resolve.
Not only this smp_processor_id() must not be migrated to another CPU but
also refresh_cpu_vm_stats() which might access wrong per-CPU variables.
Not to mention that other code relies on the fact that such a worker
runs on one specific CPU only.
Therefore revert that commit and we should look instead what broke the
affinity mask of the kworker.
Link: http://lkml.kernel.org/r/20180504104451.20278-1-bigeasy@linutronix.de
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Steven J. Hill <steven.hill@cavium.com>
Cc: Tejun Heo <htejun@gmail.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
||
Naoya Horiguchi
|
b16a6af974 |
mm: hwpoison: disable memory error handling on 1GB hugepage
commit 31286a8484a85e8b4e91ddb0f5415aee8a416827 upstream.
Recently the following BUG was reported:
Injecting memory failure for pfn 0x3c0000 at process virtual address 0x7fe300000000
Memory failure: 0x3c0000: recovery action for huge page: Recovered
BUG: unable to handle kernel paging request at ffff8dfcc0003000
IP: gup_pgd_range+0x1f0/0xc20
PGD 17ae72067 P4D 17ae72067 PUD 0
Oops: 0000 [#1] SMP PTI
...
CPU: 3 PID: 5467 Comm: hugetlb_1gb Not tainted 4.15.0-rc8-mm1-abc+ #3
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.3-1.fc25 04/01/2014
You can easily reproduce this by calling madvise(MADV_HWPOISON) twice on
a 1GB hugepage. This happens because get_user_pages_fast() is not aware
of a migration entry on pud that was created in the 1st madvise() event.
I think that conversion to pud-aligned migration entry is working, but
other MM code walking over page table isn't prepared for it. We need
some time and effort to make all this work properly, so this patch
avoids the reported bug by just disabling error handling for 1GB
hugepage.
[n-horiguchi@ah.jp.nec.com: v2]
Link: http://lkml.kernel.org/r/1517284444-18149-1-git-send-email-n-horiguchi@ah.jp.nec.com
Link: http://lkml.kernel.org/r/1517207283-15769-1-git-send-email-n-horiguchi@ah.jp.nec.com
Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
Acked-by: Punit Agrawal <punit.agrawal@arm.com>
Tested-by: Michael Ellerman <mpe@ellerman.id.au>
Cc: Anshuman Khandual <khandual@linux.vnet.ibm.com>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Cannon Matthews
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48b019a51a |
mm: hugetlb: yield when prepping struct pages
commit 520495fe96d74e05db585fc748351e0504d8f40d upstream. When booting with very large numbers of gigantic (i.e. 1G) pages, the operations in the loop of gather_bootmem_prealloc, and specifically prep_compound_gigantic_page, takes a very long time, and can cause a softlockup if enough pages are requested at boot. For example booting with 3844 1G pages requires prepping (set_compound_head, init the count) over 1 billion 4K tail pages, which takes considerable time. Add a cond_resched() to the outer loop in gather_bootmem_prealloc() to prevent this lockup. Tested: Booted with softlockup_panic=1 hugepagesz=1G hugepages=3844 and no softlockup is reported, and the hugepages are reported as successfully setup. Link: http://lkml.kernel.org/r/20180627214447.260804-1-cannonmatthews@google.com Signed-off-by: Cannon Matthews <cannonmatthews@google.com> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com> Acked-by: Michal Hocko <mhocko@suse.com> Cc: Andres Lagar-Cavilla <andreslc@google.com> Cc: Peter Feiner <pfeiner@google.com> Cc: Greg Thelen <gthelen@google.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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qctecmdr Service
|
a980a6a325 | Merge "lowmemorykiller: Introduce sysfs node for ALMK and PPR adj threshold" | ||
Sudarshan Rajagopalan
|
911c18bb7e |
arm64: mm/memblock: Update memory limit calculation
The system RAM region would not be ideally contiguous from start to end of DRAM. Detect any offset/holes present in the DDR region and update the memory limit being set, so that the DRAM end address is aligned to the memory block size. This is a requirement for mem-offline framework to work properly. Change-Id: I97cb0cce70e7c414ae2d200a4a3f714d145c0e64 Signed-off-by: Sudarshan Rajagopalan <sudaraja@codeaurora.org> |
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qctecmdr Service
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41a65c888c | Merge "mm: swap: free up swap on mm reap" | ||
Suyog Sarda
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f326985b26 |
lowmemorykiller: Introduce sysfs node for ALMK and PPR adj threshold
The grouping of tasks based on oom_score_adj values change from one framework to another. This requires corresponding changes in the threshold values set for almk and per process reclaim. Introduce sysfs nodes to set threshold adj for process reclaim and adaptive LMK dynamically. Change-Id: Ib7565bfd5d2e93aa4ff8fdd20414cac0a0f38bf7 Signed-off-by: Suyog Sarda <ssarda@codeaurora.org> Signed-off-by: Vinayak Menon <vinmenon@codeaurora.org> |
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qctecmdr Service
|
6c86746573 | Merge "mm: run the showmem notifier in alloc failure" | ||
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qctecmdr Service
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f4c73f910e | Merge "Merge android-4.14.53 (57c2874) into msm-4.14" | ||
Prakash Gupta
|
17e3983d31 |
mm: run the showmem notifier in alloc failure
When the page allocation fails, it's useful to be able to see the state of unaccounted memory in the system. Call the showmem notifier to get other clients to dump out their state. This is an example output with this patch. [ 457.125478] SLUB: Unable to allocate memory on node -1, gfp=0x2008000(GFP_NOWAIT|__GFP_ZERO) [ 457.133982] cache: kmalloc-128, object size: 128, buffer size: 640, default order: 2, min order: 0 [ 457.143179] node 0: slabs: 5903, objs: 132755, free: 26 [ 457.906076] BootAnimation: page allocation failure: order:0, mode:0x2204000(GFP_NOWAIT|__GFP_COMP|__GFP_NOTRACK) [ 457.916395] CPU: 2 PID: 4752 Comm: BootAnimation Not tainted 4.9.37+ #43 [ 457.916398] Hardware name: Qualcomm Technologies, Inc. SDM845 v1 MTP (DT) [ 457.916402] Call trace: [ 457.916420] [<ffffff82c5c89504>] dump_backtrace+0x0/0x2c4 [ 457.916426] [<ffffff82c5c897e8>] show_stack+0x20/0x28 [ 457.916434] [<ffffff82c5fea888>] dump_stack+0xb8/0xf4 [ 457.916442] [<ffffff82c5dd136c>] warn_alloc+0x154/0x170 [ 457.916447] [<ffffff82c5dd184c>] __alloc_pages_nodemask+0x430/0xcdc [ 457.916454] [<ffffff82c5e1c154>] new_slab+0x344/0x430 [ 457.916458] [<ffffff82c5e1e404>] ___slab_alloc.constprop.72+0x2f4/0x398 [ 457.916463] [<ffffff82c5e1e4f0>] __slab_alloc.isra.69.constprop.71+0x48/0x80 [ 457.916467] [<ffffff82c5e1ea24>] kmem_cache_alloc_trace+0x210/0x2dc [ 457.916476] [<ffffff82c68ebf0c>] binder_transaction+0x280/0x2008 [ 457.916480] [<ffffff82c68ee68c>] binder_thread_write+0x9f8/0x136c [ 457.916484] [<ffffff82c68f08d0>] binder_ioctl_write_read+0x14c/0x3b0 [ 457.916488] [<ffffff82c68f0df0>] binder_ioctl+0x2bc/0x868 [ 457.916494] [<ffffff82c5e451e4>] do_vfs_ioctl+0xd0/0x858 [ 457.916498] [<ffffff82c5e459fc>] SyS_ioctl+0x90/0xa4 [ 457.916503] [<ffffff82c5c83770>] el0_svc_naked+0x24/0x28 [ 457.916505] Mem-Info: [ 457.916515] active_anon:83629 inactive_anon:212 isolated_anon:0\x0a active_file:5955 inactive_file:5745 isolated_file:0\x0a unevictable:630956 dirty:0 writeback:0 unstable:0\x0a slab_recl aimable:16602 slab_unreclaimable:69384\x0a mapped:3609 shmem:308 pagetables:5737 bounce:0\x0a free:4446 free_pcp:482 free_cma:112 [ 457.916524] Node 0 active_anon:334516kB inactive_anon:848kB active_file:23820kB inactive_file:22980kB unevictable:2523824kB isolated(anon):0kB isolated(file):0kB mapped:14436kB dirty:0kB writeback:0kB shmem:1232kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no [ 457.916534] DMA free:12516kB min:3352kB low:4924kB high:6496kB active_anon:45336kB inactive_anon:64kB active_file:3588kB inactive_file:3404kB unevictable:1564224kB writepending:0kB presen t:1854120kB managed:1748064kB mlocked:1564224kB slab_reclaimable:10664kB slab_unreclaimable:24400kB kernel_stack:2608kB pagetables:6376kB bounce:0kB free_pcp:572kB local_pcp:0kB free_cma:448 kB [ 457.916536] lowmem_reserve[]: 0 1901 1901 [ 457.916550] Normal free:5268kB min:4148kB low:6092kB high:8036kB active_anon:289180kB inactive_anon:784kB active_file:20232kB inactive_file:19576kB unevictable:959600kB writepending:0kB p resent:2068224kB managed:1984196kB mlocked:959600kB slab_reclaimable:55744kB slab_unreclaimable:253136kB kernel_stack:19232kB pagetables:16572kB bounce:0kB free_pcp:1356kB local_pcp:116kB fr ee_cma:0kB [ 457.916552] lowmem_reserve[]: 0 0 0 [ 457.916560] DMA: 819*4kB (UMEC) 280*8kB (UMEC) 224*16kB (UME) 98*32kB (UME) 6*64kB (UME) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 12620kB [ 457.916594] Normal: 1118*4kB (UMEH) 38*8kB (UMH) 1*16kB (H) 2*32kB (H) 1*64kB (H) 1*128kB (H) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 5048kB [ 457.916627] 12071 total pagecache pages [ 457.916630] 0 pages in swap cache [ 457.916633] Swap cache stats: add 0, delete 0, find 0/0 [ 457.916634] Free swap = 0kB [ 457.916636] Total swap = 0kB [ 457.916639] 980586 pages RAM [ 457.916641] 0 pages HighMem/MovableOnly [ 457.916643] 47521 pages reserved [ 457.916645] 51200 pages cma reserved [ 457.916651] cma: cma-0 pages: => 0 used of 2048 total pages [ 457.916660] cma: cma-1 pages: => 0 used of 23552 total pages [ 457.916665] cma: cma-2 pages: => 1695 used of 3072 total pages [ 457.916670] cma: cma-3 pages: => 8277 used of 9216 total pages [ 457.916674] cma: cma-4 pages: => 186 used of 5120 total pages [ 457.916679] cma: cma-5 pages: => 3792 used of 8192 total pages [ 457.916685] Heap name Total heap size Total orphaned size [ 457.916687] --------------------------------- [ 457.916691] qsecom 0x ba000 0x 0 [ 457.916694] system 0x 44db000 0x 500000 [ 457.916705] ------------------------------------------------- [ 457.916708] uncached pool = 31027200 cached pool = 0 secure pool = 0 [ 457.916710] pool total (uncached + cached + secure) = 31027200 [ 457.916712] ------------------------------------------------- [ 457.916715] adsp 0x 614000 0x 0 [ 457.916720] spss 0x 0 0x 0 [ 457.916725] secure_display 0x 0 0x 0 [ 457.916727] secure_heap 0x 0 0x 0 Change-Id: Id01cce4abf331ff9c1c7ab9f0c0f9b1fc4146467 Signed-off-by: Prakash Gupta <guptap@codeaurora.org> |
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Prakash Gupta
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09e1bae59c |
mm, oom: run the showmem notifier in oom
When the oom starts killing processes, it's useful to be able to see the state of unaccounted memory in the system. Call the showmem notifier to get other clients to dump out their state. Change-Id: Id32ff6d6747fee7d0889447323ddce25282e93f6 Signed-off-by: Prakash Gupta <guptap@codeaurora.org> |
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Prakash Gupta
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9ed5f4f274 |
mm: cma: Register with show_mem notification framework
Register with the show_mem notification framework to let cma dump out data for debugging. This is an example output with this patch. cma: cma-0 pages: => 0 used of 2048 total pages cma: cma-1 pages: => 0 used of 23552 total pages cma: cma-2 pages: => 1696 used of 3072 total pages cma: cma-3 pages: => 8277 used of 9216 total pages cma: cma-4 pages: => 186 used of 5120 total pages cma: cma-5 pages: => 3792 used of 8192 total pages Change-Id: I80d9291444fd9361f5586bdf60373ed8b5b41705 Signed-off-by: Prakash Gupta <guptap@codeaurora.org> |
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Charan Teja Reddy
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b95aeb6151 |
lowmemorykiller: use oom reaper to free pages of task killed by lmk
Free the pages parallely for a task that is LMK killed using the oom_reaper. This freeing of pages will help to give the pages to buddy system well advance there by we may achieve less number of killings by LMK. Change-Id: I5e1ed183437ab243f12cbbf3ae10d9ca5211fc06 Signed-off-by: Charan Teja Reddy <charante@codeaurora.org> |
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Vinayak Menon
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22d014495f |
mm: swap: free up swap on mm reap
With the swap slots feature, the freeing up of swap space during the mm reap (kill or oom reap for e.g.) is delayed till a threshold is reached. This is done mainly to reduce the fragmentation of swap space. The caching is done per cpu. But with zram, this causes zram space consumed not being free up immediately on task kill or oom reap. Since we don't use THP swap, fragmentation is not a concern. So free up the slots without caching when the swap device is a synchronous one. Note that this does not disable the swap slots feature which can take into effect during swap slots allocation. Change-Id: I9985edfdd88723d38ae905496556e07fb8bf09af Signed-off-by: Vinayak Menon <vinmenon@codeaurora.org> |
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Vinayak Menon
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59906b3de3 |
mm: vmpressure: make vmpressure window variable
Right now the vmpressure window is of constant size 2MB, which works well with the following exceptions. 1) False vmpressure triggers are seen when the RAM size is greater than 3GB. This results in lowmemorykiller, which uses vmpressure events, killing tasks unnecessarily. 2) Vmpressure events are received late under memory pressure. This behaviour is seen prominently in <=2GB RAM targets. This results in lowmemorykiller kicking in late to kill tasks resulting in avoidable page cache reclaim. The problem analysis shows that the issue is with the constant size of the vmpressure window which does not adapt to the varying memory conditions. This patch recalculates the vmpressure window size at the end of each window. The chosen window size is proportional to the total of free and cached memory at that point. Change-Id: I7e9ef4ddd82e2c2dd04ce09ec8d58a8829cfb64d Signed-off-by: Vinayak Menon <vinmenon@codeaurora.org> |
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Vinayak Menon
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2493065a69 |
mm: vmpressure: account allocstalls only on higher pressures
At present any vmpressure value is scaled up if the pages are reclaimed through direct reclaim. This can result in false vmpressure values. Consider a case where a device is booted up and most of the memory is occuppied by file pages. kswapd will make sure that high watermark is maintained. Now when a sudden huge allocation request comes in, the system will definitely have to get into direct reclaims. The vmpressures can be very low, but because of allocstall accounting logic even these low values will be scaled to values nearing 100. This can result in unnecessary LMK kills for example. So define a tunable threshold for vmpressure above which the allocstalls will be accounted. Change-Id: Idd7c6724264ac89f1f68f2e9d70a32390ffca3e5 Signed-off-by: Vinayak Menon <vinmenon@codeaurora.org> |
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Vinayak Menon
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68ce3bbbaa |
mm: vmpressure: scale pressure based on reclaim context
The existing calculation of vmpressure takes into account only the ratio of reclaimed to scanned pages, but not the time spent or the difficulty in reclaiming those pages. For e.g. when there are quite a number of file pages in the system, an allocation request can be satisfied by reclaiming the file pages alone. If such a reclaim is successful, the vmpressure value will remain low irrespective of the time spent by the reclaim code to free up the file pages. With a feature like lowmemorykiller, killing a task can be faster than reclaiming the file pages alone. So if the vmpressure values reflect the reclaim difficulty level, clients can make a decision based on that, for e.g. to kill a task early. This patch monitors the number of pages scanned in the direct reclaim path and scales the vmpressure level according to that. Signed-off-by: Vinayak Menon <vinmenon@codeaurora.org> Change-Id: I6e643d29a9a1aa0814309253a8b690ad86ec0b13 |
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Vinayak Menon
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7964b3ce47 |
mm: process reclaim: vmpressure based process reclaim
With this patch, anon pages of inactive tasks can be reclaimed, depending on memory pressure. Memory pressure is detected using vmpressure events. 'N' best tasks in terms of anon size is selected and pages proportional to their tasksize is reclaimed. The total number of pages reclaimed at each run of the swap work, can be tuned from userspace, the default being SWAP_CLUSTER_MAX * 32. The patch also adds tracepoints to debug and tune the feature. echo 1 > /sys/module/process_reclaim/parameters/enable_process_reclaim to enable the feature. echo <pages> > /sys/module/process_reclaim/parameters/per_swap_size, to set the number of pages reclaimed in each scan. /sys/module/process_reclaim/parameters/reclaim_avg_efficiency, provides the average efficiency (scan to reclaim ratio) of the algorithm. /sys/module/process_reclaim/parameters/swap_eff_win, to set the window period (in unit of number of times reclaim is triggered) to detect low efficiency runs. /sys/module/process_reclaim/parameters/swap_opt_eff, to set the optimal efficiency threshold for low efficiency detection. Change-Id: I895986f10c997d1715761eaaadc4bbbee60db9d2 Signed-off-by: Vinayak Menon <vinmenon@codeaurora.org> |
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Liam Mark
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8df57cb4fa |
android/lowmemorykiller: Selectively count free CMA pages
In certain memory configurations there can be a large number of CMA pages which are not suitable to satisfy certain memory requests. This large number of unsuitable pages can cause the lowmemorykiller to not kill any tasks because the lowmemorykiller counts all free pages. In order to ensure the lowmemorykiller properly evaluates the free memory only count the free CMA pages if they are suitable for satisfying the memory request. Change-Id: I7f06d53e2d8cfe7439e5561fe6e5209ce73b1c90 Signed-off-by: Liam Mark <lmark@codeaurora.org> Signed-off-by: Vinayak Menon <vinmenon@codeaurora.org> |
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Isaac J. Manjarres
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44984fa144 |
Merge android-4.14.53 (57c2874) into msm-4.14
* remotes/origin/tmp-57c2874:
Linux 4.14.53
xhci: Fix use-after-free in xhci_free_virt_device
dm thin: handle running out of data space vs concurrent discard
dm zoned: avoid triggering reclaim from inside dmz_map()
x86/efi: Fix efi_call_phys_epilog() with CONFIG_X86_5LEVEL=y
block: Fix cloning of requests with a special payload
block: Fix transfer when chunk sectors exceeds max
slub: fix failure when we delete and create a slab cache
ALSA: hda/realtek - Fix the problem of two front mics on more machines
ALSA: hda/realtek - Add a quirk for FSC ESPRIMO U9210
ALSA: hda/realtek - Fix pop noise on Lenovo P50 & co
ALSA: timer: Fix UBSAN warning at SNDRV_TIMER_IOCTL_NEXT_DEVICE ioctl
Input: elantech - fix V4 report decoding for module with middle key
Input: elantech - enable middle button of touchpads on ThinkPad P52
Input: elan_i2c_smbus - fix more potential stack buffer overflows
Input: xpad - fix GPD Win 2 controller name
udf: Detect incorrect directory size
xen: Remove unnecessary BUG_ON from __unbind_from_irq()
mm: fix devmem_is_allowed() for sub-page System RAM intersections
mm/ksm.c: ignore STABLE_FLAG of rmap_item->address in rmap_walk_ksm()
rbd: flush rbd_dev->watch_dwork after watch is unregistered
pwm: lpss: platform: Save/restore the ctrl register over a suspend/resume
Input: elan_i2c - add ELAN0618 (Lenovo v330 15IKB) ACPI ID
ACPI / LPSS: Add missing prv_offset setting for byt/cht PWM devices
video: uvesafb: Fix integer overflow in allocation
NFSv4: Fix a typo in nfs41_sequence_process
NFSv4: Revert commit 5f83d86cf531d ("NFSv4.x: Fix wraparound issues..")
NFSv4: Fix possible 1-byte stack overflow in nfs_idmap_read_and_verify_message
nfsd: restrict rd_maxcount to svc_max_payload in nfsd_encode_readdir
media: dvb_frontend: fix locking issues at dvb_frontend_get_event()
media: cx231xx: Add support for AverMedia DVD EZMaker 7
media: v4l2-compat-ioctl32: prevent go past max size
media: vsp1: Release buffers for each video node
perf/x86/intel/uncore: Add event constraint for BDX PCU
perf vendor events: Add Goldmont Plus V1 event file
perf intel-pt: Fix packet decoding of CYC packets
perf intel-pt: Fix "Unexpected indirect branch" error
perf intel-pt: Fix MTC timing after overflow
perf intel-pt: Fix decoding to accept CBR between FUP and corresponding TIP
perf intel-pt: Fix sync_switch INTEL_PT_SS_NOT_TRACING
perf tools: Fix symbol and object code resolution for vdso32 and vdsox32
arm: dts: mt7623: fix invalid memory node being generated
mfd: intel-lpss: Fix Intel Cannon Lake LPSS I2C input clock
mfd: intel-lpss: Program REMAP register in PIO mode
backlight: tps65217_bl: Fix Device Tree node lookup
backlight: max8925_bl: Fix Device Tree node lookup
backlight: as3711_bl: Fix Device Tree node lookup
UBIFS: Fix potential integer overflow in allocation
ubi: fastmap: Correctly handle interrupted erasures in EBA
ubi: fastmap: Cancel work upon detach
rpmsg: smd: do not use mananged resources for endpoints and channels
md: fix two problems with setting the "re-add" device state.
rtc: sun6i: Fix bit_idx value for clk_register_gate
clk: at91: PLL recalc_rate() now using cached MUL and DIV values
linvdimm, pmem: Preserve read-only setting for pmem devices
scsi: zfcp: fix missing REC trigger trace on enqueue without ERP thread
scsi: zfcp: fix missing REC trigger trace for all objects in ERP_FAILED
scsi: zfcp: fix missing REC trigger trace on terminate_rport_io for ERP_FAILED
scsi: zfcp: fix missing REC trigger trace on terminate_rport_io early return
scsi: zfcp: fix misleading REC trigger trace where erp_action setup failed
scsi: zfcp: fix missing SCSI trace for retry of abort / scsi_eh TMF
scsi: zfcp: fix missing SCSI trace for result of eh_host_reset_handler
scsi: qla2xxx: Mask off Scope bits in retry delay
scsi: qla2xxx: Fix setting lower transfer speed if GPSC fails
scsi: hpsa: disable device during shutdown
mm: fix __gup_device_huge vs unmap
iio: sca3000: Fix an error handling path in 'sca3000_probe()'
iio: adc: ad7791: remove sample freq sysfs attributes
Btrfs: fix return value on rename exchange failure
X.509: unpack RSA signatureValue field from BIT STRING
irqchip/gic-v3-its: Don't bind LPI to unavailable NUMA node
time: Make sure jiffies_to_msecs() preserves non-zero time periods
MIPS: io: Add barrier after register read in inX()
cpufreq: intel_pstate: Fix scaling max/min limits with Turbo 3.0
pinctrl: devicetree: Fix pctldev pointer overwrite
pinctrl: samsung: Correct EINTG banks order
auxdisplay: fix broken menu
PCI: pciehp: Clear Presence Detect and Data Link Layer Status Changed on resume
PCI: Add ACS quirk for Intel 300 series
PCI: Add ACS quirk for Intel 7th & 8th Gen mobile
PCI: hv: Make sure the bus domain is really unique
MIPS: BCM47XX: Enable 74K Core ExternalSync for PCIe erratum
mtd: cfi_cmdset_0002: Avoid walking all chips when unlocking.
mtd: cfi_cmdset_0002: Fix unlocking requests crossing a chip boudary
mtd: cfi_cmdset_0002: fix SEGV unlocking multiple chips
mtd: cfi_cmdset_0002: Use right chip in do_ppb_xxlock()
mtd: cfi_cmdset_0002: Change write buffer to check correct value
xprtrdma: Return -ENOBUFS when no pages are available
RDMA/mlx4: Discard unknown SQP work requests
IB/hfi1: Fix user context tail allocation for DMA_RTAIL
IB/hfi1: Optimize kthread pointer locking when queuing CQ entries
IB/hfi1: Reorder incorrect send context disable
IB/hfi1: Fix fault injection init/exit issues
IB/isert: fix T10-pi check mask setting
IB/isert: Fix for lib/dma_debug check_sync warning
IB/mlx5: Fetch soft WQE's on fatal error state
IB/core: Make testing MR flags for writability a static inline function
IB/mlx4: Mark user MR as writable if actual virtual memory is writable
IB/{hfi1, qib}: Add handling of kernel restart
IB/qib: Fix DMA api warning with debug kernel
tpm: fix race condition in tpm_common_write()
tpm: fix use after free in tpm2_load_context()
of: platform: stop accessing invalid dev in of_platform_device_destroy
of: unittest: for strings, account for trailing \0 in property length field
of: overlay: validate offset from property fixups
ARM64: dts: meson: disable sd-uhs modes on the libretech-cc
arm64: mm: Ensure writes to swapper are ordered wrt subsequent cache maintenance
arm64: kpti: Use early_param for kpti= command-line option
arm64: Fix syscall restarting around signal suppressed by tracer
ARM: dts: socfpga: Fix NAND controller node compatible for Arria10
ARM: dts: socfpga: Fix NAND controller clock supply
ARM: dts: socfpga: Fix NAND controller node compatible
ARM: dts: Fix SPI node for Arria10
ARM: 8764/1: kgdb: fix NUMREGBYTES so that gdb_regs[] is the correct size
cxl: Disable prefault_mode in Radix mode
soc: rockchip: power-domain: Fix wrong value when power up pd with writemask
powerpc/fadump: Unregister fadump on kexec down path.
cpuidle: powernv: Fix promotion from snooze if next state disabled
powerpc/powernv/cpuidle: Init all present cpus for deep states
powerpc/powernv: copy/paste - Mask SO bit in CR
powerpc/powernv/ioda2: Remove redundant free of TCE pages
powerpc/ptrace: Fix enforcement of DAWR constraints
powerpc/perf: Fix memory allocation for core-imc based on num_possible_cpus()
powerpc/ptrace: Fix setting 512B aligned breakpoints with PTRACE_SET_DEBUGREG
powerpc/mm/hash: Add missing isync prior to kernel stack SLB switch
fuse: fix control dir setup and teardown
fuse: don't keep dead fuse_conn at fuse_fill_super().
fuse: atomic_o_trunc should truncate pagecache
fuse: fix congested state leak on aborted connections
printk: fix possible reuse of va_list variable
Bluetooth: hci_qca: Avoid missing rampatch failure with userspace fw loader
ipmi:bt: Set the timeout before doing a capabilities check
branch-check: fix long->int truncation when profiling branches
mips: ftrace: fix static function graph tracing
ftrace/selftest: Have the reset_trigger code be a bit more careful
lib/vsprintf: Remove atomic-unsafe support for %pCr
clk: renesas: cpg-mssr: Stop using printk format %pCr
thermal: bcm2835: Stop using printk format %pCr
ASoC: cirrus: i2s: Fix {TX|RX}LinCtrlData setup
ASoC: cirrus: i2s: Fix LRCLK configuration
ASoC: cs35l35: Add use_single_rw to regmap config
ASoC: dapm: delete dapm_kcontrol_data paths list before freeing it
1wire: family module autoload fails because of upper/lower case mismatch.
usb: do not reset if a low-speed or full-speed device timed out
PM / OPP: Update voltage in case freq == old_freq
PM / core: Fix supplier device runtime PM usage counter imbalance
PM / Domains: Fix error path during attach in genpd
signal/xtensa: Consistenly use SIGBUS in do_unaligned_user
serial: sh-sci: Use spin_{try}lock_irqsave instead of open coding version
m68k/mac: Fix SWIM memory resource end address
m68k/mm: Adjust VM area to be unmapped by gap size for __iounmap()
x86: Call fixup_exception() before notify_die() in math_error()
x86/mce: Do not overwrite MCi_STATUS in mce_no_way_out()
x86/mce: Fix incorrect "Machine check from unknown source" message
x86/mce: Check for alternate indication of machine check recovery on Skylake
x86/mce: Improve error message when kernel cannot recover
x86/xen: Add call of speculative_store_bypass_ht_init() to PV paths
x86/spectre_v1: Disable compiler optimizations over array_index_mask_nospec()
FROMLIST: trace: Reorder display of TGID to be after PID
Change-Id: I2e5135127f9d81a39dc77bc84fa50c76ec0b58af
Signed-off-by: Isaac J. Manjarres <isaacm@codeaurora.org>
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Greg Kroah-Hartman
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57c28741d0 |
This is the 4.14.53 stable release
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Merge 4.14.53 into android-4.14
Changes in 4.14.53
x86/spectre_v1: Disable compiler optimizations over array_index_mask_nospec()
x86/xen: Add call of speculative_store_bypass_ht_init() to PV paths
x86/mce: Improve error message when kernel cannot recover
x86/mce: Check for alternate indication of machine check recovery on Skylake
x86/mce: Fix incorrect "Machine check from unknown source" message
x86/mce: Do not overwrite MCi_STATUS in mce_no_way_out()
x86: Call fixup_exception() before notify_die() in math_error()
m68k/mm: Adjust VM area to be unmapped by gap size for __iounmap()
m68k/mac: Fix SWIM memory resource end address
serial: sh-sci: Use spin_{try}lock_irqsave instead of open coding version
signal/xtensa: Consistenly use SIGBUS in do_unaligned_user
PM / Domains: Fix error path during attach in genpd
PM / core: Fix supplier device runtime PM usage counter imbalance
PM / OPP: Update voltage in case freq == old_freq
usb: do not reset if a low-speed or full-speed device timed out
1wire: family module autoload fails because of upper/lower case mismatch.
ASoC: dapm: delete dapm_kcontrol_data paths list before freeing it
ASoC: cs35l35: Add use_single_rw to regmap config
ASoC: cirrus: i2s: Fix LRCLK configuration
ASoC: cirrus: i2s: Fix {TX|RX}LinCtrlData setup
thermal: bcm2835: Stop using printk format %pCr
clk: renesas: cpg-mssr: Stop using printk format %pCr
lib/vsprintf: Remove atomic-unsafe support for %pCr
ftrace/selftest: Have the reset_trigger code be a bit more careful
mips: ftrace: fix static function graph tracing
branch-check: fix long->int truncation when profiling branches
ipmi:bt: Set the timeout before doing a capabilities check
Bluetooth: hci_qca: Avoid missing rampatch failure with userspace fw loader
printk: fix possible reuse of va_list variable
fuse: fix congested state leak on aborted connections
fuse: atomic_o_trunc should truncate pagecache
fuse: don't keep dead fuse_conn at fuse_fill_super().
fuse: fix control dir setup and teardown
powerpc/mm/hash: Add missing isync prior to kernel stack SLB switch
powerpc/ptrace: Fix setting 512B aligned breakpoints with PTRACE_SET_DEBUGREG
powerpc/perf: Fix memory allocation for core-imc based on num_possible_cpus()
powerpc/ptrace: Fix enforcement of DAWR constraints
powerpc/powernv/ioda2: Remove redundant free of TCE pages
powerpc/powernv: copy/paste - Mask SO bit in CR
powerpc/powernv/cpuidle: Init all present cpus for deep states
cpuidle: powernv: Fix promotion from snooze if next state disabled
powerpc/fadump: Unregister fadump on kexec down path.
soc: rockchip: power-domain: Fix wrong value when power up pd with writemask
cxl: Disable prefault_mode in Radix mode
ARM: 8764/1: kgdb: fix NUMREGBYTES so that gdb_regs[] is the correct size
ARM: dts: Fix SPI node for Arria10
ARM: dts: socfpga: Fix NAND controller node compatible
ARM: dts: socfpga: Fix NAND controller clock supply
ARM: dts: socfpga: Fix NAND controller node compatible for Arria10
arm64: Fix syscall restarting around signal suppressed by tracer
arm64: kpti: Use early_param for kpti= command-line option
arm64: mm: Ensure writes to swapper are ordered wrt subsequent cache maintenance
ARM64: dts: meson: disable sd-uhs modes on the libretech-cc
of: overlay: validate offset from property fixups
of: unittest: for strings, account for trailing \0 in property length field
of: platform: stop accessing invalid dev in of_platform_device_destroy
tpm: fix use after free in tpm2_load_context()
tpm: fix race condition in tpm_common_write()
IB/qib: Fix DMA api warning with debug kernel
IB/{hfi1, qib}: Add handling of kernel restart
IB/mlx4: Mark user MR as writable if actual virtual memory is writable
IB/core: Make testing MR flags for writability a static inline function
IB/mlx5: Fetch soft WQE's on fatal error state
IB/isert: Fix for lib/dma_debug check_sync warning
IB/isert: fix T10-pi check mask setting
IB/hfi1: Fix fault injection init/exit issues
IB/hfi1: Reorder incorrect send context disable
IB/hfi1: Optimize kthread pointer locking when queuing CQ entries
IB/hfi1: Fix user context tail allocation for DMA_RTAIL
RDMA/mlx4: Discard unknown SQP work requests
xprtrdma: Return -ENOBUFS when no pages are available
mtd: cfi_cmdset_0002: Change write buffer to check correct value
mtd: cfi_cmdset_0002: Use right chip in do_ppb_xxlock()
mtd: cfi_cmdset_0002: fix SEGV unlocking multiple chips
mtd: cfi_cmdset_0002: Fix unlocking requests crossing a chip boudary
mtd: cfi_cmdset_0002: Avoid walking all chips when unlocking.
MIPS: BCM47XX: Enable 74K Core ExternalSync for PCIe erratum
PCI: hv: Make sure the bus domain is really unique
PCI: Add ACS quirk for Intel 7th & 8th Gen mobile
PCI: Add ACS quirk for Intel 300 series
PCI: pciehp: Clear Presence Detect and Data Link Layer Status Changed on resume
auxdisplay: fix broken menu
pinctrl: samsung: Correct EINTG banks order
pinctrl: devicetree: Fix pctldev pointer overwrite
cpufreq: intel_pstate: Fix scaling max/min limits with Turbo 3.0
MIPS: io: Add barrier after register read in inX()
time: Make sure jiffies_to_msecs() preserves non-zero time periods
irqchip/gic-v3-its: Don't bind LPI to unavailable NUMA node
X.509: unpack RSA signatureValue field from BIT STRING
Btrfs: fix return value on rename exchange failure
iio: adc: ad7791: remove sample freq sysfs attributes
iio: sca3000: Fix an error handling path in 'sca3000_probe()'
mm: fix __gup_device_huge vs unmap
scsi: hpsa: disable device during shutdown
scsi: qla2xxx: Fix setting lower transfer speed if GPSC fails
scsi: qla2xxx: Mask off Scope bits in retry delay
scsi: zfcp: fix missing SCSI trace for result of eh_host_reset_handler
scsi: zfcp: fix missing SCSI trace for retry of abort / scsi_eh TMF
scsi: zfcp: fix misleading REC trigger trace where erp_action setup failed
scsi: zfcp: fix missing REC trigger trace on terminate_rport_io early return
scsi: zfcp: fix missing REC trigger trace on terminate_rport_io for ERP_FAILED
scsi: zfcp: fix missing REC trigger trace for all objects in ERP_FAILED
scsi: zfcp: fix missing REC trigger trace on enqueue without ERP thread
linvdimm, pmem: Preserve read-only setting for pmem devices
clk: at91: PLL recalc_rate() now using cached MUL and DIV values
rtc: sun6i: Fix bit_idx value for clk_register_gate
md: fix two problems with setting the "re-add" device state.
rpmsg: smd: do not use mananged resources for endpoints and channels
ubi: fastmap: Cancel work upon detach
ubi: fastmap: Correctly handle interrupted erasures in EBA
UBIFS: Fix potential integer overflow in allocation
backlight: as3711_bl: Fix Device Tree node lookup
backlight: max8925_bl: Fix Device Tree node lookup
backlight: tps65217_bl: Fix Device Tree node lookup
mfd: intel-lpss: Program REMAP register in PIO mode
mfd: intel-lpss: Fix Intel Cannon Lake LPSS I2C input clock
arm: dts: mt7623: fix invalid memory node being generated
perf tools: Fix symbol and object code resolution for vdso32 and vdsox32
perf intel-pt: Fix sync_switch INTEL_PT_SS_NOT_TRACING
perf intel-pt: Fix decoding to accept CBR between FUP and corresponding TIP
perf intel-pt: Fix MTC timing after overflow
perf intel-pt: Fix "Unexpected indirect branch" error
perf intel-pt: Fix packet decoding of CYC packets
perf vendor events: Add Goldmont Plus V1 event file
perf/x86/intel/uncore: Add event constraint for BDX PCU
media: vsp1: Release buffers for each video node
media: v4l2-compat-ioctl32: prevent go past max size
media: cx231xx: Add support for AverMedia DVD EZMaker 7
media: dvb_frontend: fix locking issues at dvb_frontend_get_event()
nfsd: restrict rd_maxcount to svc_max_payload in nfsd_encode_readdir
NFSv4: Fix possible 1-byte stack overflow in nfs_idmap_read_and_verify_message
NFSv4: Revert commit 5f83d86cf531d ("NFSv4.x: Fix wraparound issues..")
NFSv4: Fix a typo in nfs41_sequence_process
video: uvesafb: Fix integer overflow in allocation
ACPI / LPSS: Add missing prv_offset setting for byt/cht PWM devices
Input: elan_i2c - add ELAN0618 (Lenovo v330 15IKB) ACPI ID
pwm: lpss: platform: Save/restore the ctrl register over a suspend/resume
rbd: flush rbd_dev->watch_dwork after watch is unregistered
mm/ksm.c: ignore STABLE_FLAG of rmap_item->address in rmap_walk_ksm()
mm: fix devmem_is_allowed() for sub-page System RAM intersections
xen: Remove unnecessary BUG_ON from __unbind_from_irq()
udf: Detect incorrect directory size
Input: xpad - fix GPD Win 2 controller name
Input: elan_i2c_smbus - fix more potential stack buffer overflows
Input: elantech - enable middle button of touchpads on ThinkPad P52
Input: elantech - fix V4 report decoding for module with middle key
ALSA: timer: Fix UBSAN warning at SNDRV_TIMER_IOCTL_NEXT_DEVICE ioctl
ALSA: hda/realtek - Fix pop noise on Lenovo P50 & co
ALSA: hda/realtek - Add a quirk for FSC ESPRIMO U9210
ALSA: hda/realtek - Fix the problem of two front mics on more machines
slub: fix failure when we delete and create a slab cache
block: Fix transfer when chunk sectors exceeds max
block: Fix cloning of requests with a special payload
x86/efi: Fix efi_call_phys_epilog() with CONFIG_X86_5LEVEL=y
dm zoned: avoid triggering reclaim from inside dmz_map()
dm thin: handle running out of data space vs concurrent discard
xhci: Fix use-after-free in xhci_free_virt_device
Linux 4.14.53
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
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David Rientjes
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157ea568b9 |
mm, oom: remove 3% bonus for CAP_SYS_ADMIN processes
Since the 2.6 kernel, the oom killer has slightly biased away from CAP_SYS_ADMIN processes by discounting some of its memory usage in comparison to other processes. This has always been implicit and nothing exactly relies on the behavior. Gaurav notices that __task_cred() can dereference a potentially freed pointer if the task under consideration is exiting because a reference to the task_struct is not held. Remove the CAP_SYS_ADMIN bias so that all processes are treated equally. If any CAP_SYS_ADMIN process would like to be biased against, it is always allowed to adjust /proc/pid/oom_score_adj. Change-Id: Ib5aabf6e1669301e9367b2495d26f21924ae7209 Link: http://lkml.kernel.org/r/alpine.DEB.2.20.1803071548510.6996@chino.kir.corp.google.com Signed-off-by: David Rientjes <rientjes@google.com> Reported-by: Gaurav Kohli <gkohli@codeaurora.org> Cc: Michal Hocko <mhocko@suse.com> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Git-commit: a62ca4dbf28fc5caad697f2603bcd5acbadce330 Git-repo: http://git.cmpxchg.org/cgit.cgi/linux-mmotm.git/ Signed-off-by: Gaurav Kohli <gkohli@codeaurora.org> |
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Mikulas Patocka
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804a0db743 |
slub: fix failure when we delete and create a slab cache
commit d50d82faa0c964e31f7a946ba8aba7c715ca7ab0 upstream. In kernel 4.17 I removed some code from dm-bufio that did slab cache merging (commit 21bb13276768: "dm bufio: remove code that merges slab caches") - both slab and slub support merging caches with identical attributes, so dm-bufio now just calls kmem_cache_create and relies on implicit merging. This uncovered a bug in the slub subsystem - if we delete a cache and immediatelly create another cache with the same attributes, it fails because of duplicate filename in /sys/kernel/slab/. The slub subsystem offloads freeing the cache to a workqueue - and if we create the new cache before the workqueue runs, it complains because of duplicate filename in sysfs. This patch fixes the bug by moving the call of kobject_del from sysfs_slab_remove_workfn to shutdown_cache. kobject_del must be called while we hold slab_mutex - so that the sysfs entry is deleted before a cache with the same attributes could be created. Running device-mapper-test-suite with: dmtest run --suite thin-provisioning -n /commit_failure_causes_fallback/ triggered: Buffer I/O error on dev dm-0, logical block 1572848, async page read device-mapper: thin: 253:1: metadata operation 'dm_pool_alloc_data_block' failed: error = -5 device-mapper: thin: 253:1: aborting current metadata transaction sysfs: cannot create duplicate filename '/kernel/slab/:a-0000144' CPU: 2 PID: 1037 Comm: kworker/u48:1 Not tainted 4.17.0.snitm+ #25 Hardware name: Supermicro SYS-1029P-WTR/X11DDW-L, BIOS 2.0a 12/06/2017 Workqueue: dm-thin do_worker [dm_thin_pool] Call Trace: dump_stack+0x5a/0x73 sysfs_warn_dup+0x58/0x70 sysfs_create_dir_ns+0x77/0x80 kobject_add_internal+0xba/0x2e0 kobject_init_and_add+0x70/0xb0 sysfs_slab_add+0xb1/0x250 __kmem_cache_create+0x116/0x150 create_cache+0xd9/0x1f0 kmem_cache_create_usercopy+0x1c1/0x250 kmem_cache_create+0x18/0x20 dm_bufio_client_create+0x1ae/0x410 [dm_bufio] dm_block_manager_create+0x5e/0x90 [dm_persistent_data] __create_persistent_data_objects+0x38/0x940 [dm_thin_pool] dm_pool_abort_metadata+0x64/0x90 [dm_thin_pool] metadata_operation_failed+0x59/0x100 [dm_thin_pool] alloc_data_block.isra.53+0x86/0x180 [dm_thin_pool] process_cell+0x2a3/0x550 [dm_thin_pool] do_worker+0x28d/0x8f0 [dm_thin_pool] process_one_work+0x171/0x370 worker_thread+0x49/0x3f0 kthread+0xf8/0x130 ret_from_fork+0x35/0x40 kobject_add_internal failed for :a-0000144 with -EEXIST, don't try to register things with the same name in the same directory. kmem_cache_create(dm_bufio_buffer-16) failed with error -17 Link: http://lkml.kernel.org/r/alpine.LRH.2.02.1806151817130.6333@file01.intranet.prod.int.rdu2.redhat.com Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Reported-by: Mike Snitzer <snitzer@redhat.com> Tested-by: Mike Snitzer <snitzer@redhat.com> Cc: Christoph Lameter <cl@linux.com> Cc: Pekka Enberg <penberg@kernel.org> Cc: David Rientjes <rientjes@google.com> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Jia He
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6f23028480 |
mm/ksm.c: ignore STABLE_FLAG of rmap_item->address in rmap_walk_ksm()
commit 1105a2fc022f3c7482e32faf516e8bc44095f778 upstream. In our armv8a server(QDF2400), I noticed lots of WARN_ON caused by PAGE_SIZE unaligned for rmap_item->address under memory pressure tests(start 20 guests and run memhog in the host). WARNING: CPU: 4 PID: 4641 at virt/kvm/arm/mmu.c:1826 kvm_age_hva_handler+0xc0/0xc8 CPU: 4 PID: 4641 Comm: memhog Tainted: G W 4.17.0-rc3+ #8 Call trace: kvm_age_hva_handler+0xc0/0xc8 handle_hva_to_gpa+0xa8/0xe0 kvm_age_hva+0x4c/0xe8 kvm_mmu_notifier_clear_flush_young+0x54/0x98 __mmu_notifier_clear_flush_young+0x6c/0xa0 page_referenced_one+0x154/0x1d8 rmap_walk_ksm+0x12c/0x1d0 rmap_walk+0x94/0xa0 page_referenced+0x194/0x1b0 shrink_page_list+0x674/0xc28 shrink_inactive_list+0x26c/0x5b8 shrink_node_memcg+0x35c/0x620 shrink_node+0x100/0x430 do_try_to_free_pages+0xe0/0x3a8 try_to_free_pages+0xe4/0x230 __alloc_pages_nodemask+0x564/0xdc0 alloc_pages_vma+0x90/0x228 do_anonymous_page+0xc8/0x4d0 __handle_mm_fault+0x4a0/0x508 handle_mm_fault+0xf8/0x1b0 do_page_fault+0x218/0x4b8 do_translation_fault+0x90/0xa0 do_mem_abort+0x68/0xf0 el0_da+0x24/0x28 In rmap_walk_ksm, the rmap_item->address might still have the STABLE_FLAG, then the start and end in handle_hva_to_gpa might not be PAGE_SIZE aligned. Thus it will cause exceptions in handle_hva_to_gpa on arm64. This patch fixes it by ignoring (not removing) the low bits of address when doing rmap_walk_ksm. IMO, it should be backported to stable tree. the storm of WARN_ONs is very easy for me to reproduce. More than that, I watched a panic (not reproducible) as follows: page:ffff7fe003742d80 count:-4871 mapcount:-2126053375 mapping: (null) index:0x0 flags: 0x1fffc00000000000() raw: 1fffc00000000000 0000000000000000 0000000000000000 ffffecf981470000 raw: dead000000000100 dead000000000200 ffff8017c001c000 0000000000000000 page dumped because: nonzero _refcount CPU: 29 PID: 18323 Comm: qemu-kvm Tainted: G W 4.14.15-5.hxt.aarch64 #1 Hardware name: <snip for confidential issues> Call trace: dump_backtrace+0x0/0x22c show_stack+0x24/0x2c dump_stack+0x8c/0xb0 bad_page+0xf4/0x154 free_pages_check_bad+0x90/0x9c free_pcppages_bulk+0x464/0x518 free_hot_cold_page+0x22c/0x300 __put_page+0x54/0x60 unmap_stage2_range+0x170/0x2b4 kvm_unmap_hva_handler+0x30/0x40 handle_hva_to_gpa+0xb0/0xec kvm_unmap_hva_range+0x5c/0xd0 I even injected a fault on purpose in kvm_unmap_hva_range by seting size=size-0x200, the call trace is similar as above. So I thought the panic is similarly caused by the root cause of WARN_ON. Andrea said: : It looks a straightforward safe fix, on x86 hva_to_gfn_memslot would : zap those bits and hide the misalignment caused by the low metadata : bits being erroneously left set in the address, but the arm code : notices when that's the last page in the memslot and the hva_end is : getting aligned and the size is below one page. : : I think the problem triggers in the addr += PAGE_SIZE of : unmap_stage2_ptes that never matches end because end is aligned but : addr is not. : : } while (pte++, addr += PAGE_SIZE, addr != end); : : x86 again only works on hva_start/hva_end after converting it to : gfn_start/end and that being in pfn units the bits are zapped before : they risk to cause trouble. Jia He said: : I've tested by myself in arm64 server (QDF2400,46 cpus,96G mem) Without : this patch, the WARN_ON is very easy for reproducing. After this patch, I : have run the same benchmarch for a whole day without any WARN_ONs Link: http://lkml.kernel.org/r/1525403506-6750-1-git-send-email-hejianet@gmail.com Signed-off-by: Jia He <jia.he@hxt-semitech.com> Reviewed-by: Andrea Arcangeli <aarcange@redhat.com> Tested-by: Jia He <hejianet@gmail.com> Cc: Suzuki K Poulose <Suzuki.Poulose@arm.com> Cc: Minchan Kim <minchan@kernel.org> Cc: Claudio Imbrenda <imbrenda@linux.vnet.ibm.com> Cc: Arvind Yadav <arvind.yadav.cs@gmail.com> Cc: Mike Rapoport <rppt@linux.vnet.ibm.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Dan Williams
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2d329968a8 |
mm: fix __gup_device_huge vs unmap
commit a9b6de77b1a3ff729f7bfc54b2e17711776a416c upstream.
get_user_pages_fast() for device pages is missing the typical validation
that all page references have been taken while the mapping was valid.
Without this validation truncate operations can not reliably coordinate
against new page reference events like O_DIRECT.
Cc: <stable@vger.kernel.org>
Fixes: 3565fce3a659 ("mm, x86: get_user_pages() for dax mappings")
Reported-by: Jan Kara <jack@suse.cz>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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qctecmdr Service
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b2f1f26ad0 | Merge "ion: invalidate the pool pointers after free" | ||
Minchan Kim
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08d7320937 |
mm: disable fault around on emulated access bit architecture
fault_around aims to reduce minor faults of file-backed pages via speculative ahead pte mapping and relying on readahead logic. However, on non-HW access bit architecture the benefit is highly limited because they should emulate the young bit with minor faults for reclaim's page aging algorithm. IOW, we cannot reduce minor faults on those architectures. I did quick a test on my ARM machine. 512M file mmap sequential every word read on eSATA drive 4 times. stddev is stable. = fault_around 4096 = elapsed time(usec): 6747645 = fault_around 65536 = elapsed time(usec): 6709263 0.5% gain. Even when I tested it with eMMC there is no gain because I guess with slow storage the major fault is the dominant factor. Also, fault_around has the side effect of shrinking slab more aggressively and causes higher vmpressure, so if such speculation fails, it can evict slab more which can result in page I/O (e.g., inode cache). In the end, it would make void any benefit of fault_around. So let's make the default "disabled" on those architectures. Change-Id: I5e6b74943c95f6779b3a6e463b4d0a8b27eaac01 Link: http://lkml.kernel.org/r/20160518014229.GB21538@bbox Signed-off-by: Minchan Kim <minchan@kernel.org> Cc: Kirill A. Shutemov <kirill@shutemov.name> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Git-commit: d0834a6c2c5b0c76cfb806bd7dba6556d8b4edbb Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git [vinmenon@codeaurora.org: trivial merge conflict fixes] Signed-off-by: Vinayak Menon <vinmenon@codeaurora.org> |
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Vinayak Menon
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ad50bf626a |
mm: make faultaround produce old ptes
Based on Kirill's patch [1]. Currently, faultaround code produces young pte. This can screw up vmscan behaviour[2], as it makes vmscan think that these pages are hot and not push them out on first round. During sparse file access faultaround gets more pages mapped and all of them are young. Under memory pressure, this makes vmscan swap out anon pages instead, or to drop other page cache pages which otherwise stay resident. Modify faultaround to produce old ptes if sysctl 'want_old_faultaround_pte' is set, so they can easily be reclaimed under memory pressure. This can to some extend defeat the purpose of faultaround on machines without hardware accessed bit as it will not help us with reducing the number of minor page faults. Making the faultaround ptes old results in a unixbench regression for some architectures [3][4]. But on some architectures like arm64 it is not found to cause any regression. unixbench shell8 scores on arm64 v8.2 hardware with CONFIG_ARM64_HW_AFDBM enabled (5 runs min, max, avg): Base: (741,748,744) With this patch: (739,748,743) So by default produce young ptes and provide a sysctl option to make the ptes old. [1] https://marc.info/?l=linux-mm&m=146348837703148 [2] https://lkml.org/lkml/2016/4/18/612 [3] https://marc.info/?l=linux-kernel&m=146582237922378&w=2 [4] https://marc.info/?l=linux-mm&m=146589376909424&w=2 Change-Id: I193185cc953bc33a44fc24963a9df9e555906d95 Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Patch-mainline: linux-mm @ Fri, 19 Jan 2018 17:24:54 [vinmenon@codeaurora.org: enable by default since arm works well with old fault_around ptes + edit the links in commit message to fix checkpatch issues] Signed-off-by: Vinayak Menon <vinmenon@codeaurora.org> |
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qctecmdr Service
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2d21e5e538 | Merge "add documentation about reclaim knob on proc.txt" | ||
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Isaac J. Manjarres
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d46b5c945c |
Merge android-4.14.52 (08850d5) into msm-4.14
* remotes/origin/tmp-08850d5: Linux 4.14.52 mm, page_alloc: do not break __GFP_THISNODE by zonelist reset fs/binfmt_misc.c: do not allow offset overflow vhost: fix info leak due to uninitialized memory HID: wacom: Correct logical maximum Y for 2nd-gen Intuos Pro large HID: intel_ish-hid: ipc: register more pm callbacks to support hibernation orangefs: report attributes_mask and attributes for statx orangefs: set i_size on new symlink iwlwifi: fw: harden page loading code x86/intel_rdt: Enable CMT and MBM on new Skylake stepping w1: mxc_w1: Enable clock before calling clk_get_rate() on it libata: Drop SanDisk SD7UB3Q*G1001 NOLPM quirk libata: zpodd: small read overflow in eject_tray() cpufreq: governors: Fix long idle detection logic in load calculation cpufreq: Fix new policy initialization during limits updates via sysfs bdi: Move cgroup bdi_writeback to a dedicated low concurrency workqueue blk-mq: reinit q->tag_set_list entry only after grace period nbd: use bd_set_size when updating disk size nbd: update size when connected nbd: fix nbd device deletion cifs: For SMB2 security informaion query, check for minimum sized security descriptor instead of sizeof FileAllInformation class CIFS: 511c54a2f69195b28afb9dd119f03787b1625bb4 adds a check for session expiry smb3: on reconnect set PreviousSessionId field smb3: fix various xid leaks x86/MCE: Fix stack out-of-bounds write in mce-inject.c: Flags_read() ALSA: hda: add dock and led support for HP ProBook 640 G4 ALSA: hda: add dock and led support for HP EliteBook 830 G5 ALSA: hda - Handle kzalloc() failure in snd_hda_attach_pcm_stream() ALSA: hda/conexant - Add fixup for HP Z2 G4 workstation ALSA: hda/realtek - Enable mic-mute hotkey for several Lenovo AIOs btrfs: scrub: Don't use inode pages for device replace btrfs: return error value if create_io_em failed in cow_file_range Btrfs: fix memory and mount leak in btrfs_ioctl_rm_dev_v2() Btrfs: fix clone vs chattr NODATASUM race driver core: Don't ignore class_dir_create_and_add() failure. ext4: fix fencepost error in check for inode count overflow during resize ext4: correctly handle a zero-length xattr with a non-zero e_value_offs ext4: bubble errors from ext4_find_inline_data_nolock() up to ext4_iget() ext4: do not allow external inodes for inline data ext4: update mtime in ext4_punch_hole even if no blocks are released ext4: fix hole length detection in ext4_ind_map_blocks() NFSv4.1: Fix up replays of interrupted requests tls: fix use-after-free in tls_push_record hv_netvsc: Fix a network regression after ifdown/ifup net: in virtio_net_hdr only add VLAN_HLEN to csum_start if payload holds vlan udp: fix rx queue len reported by diag and proc interface socket: close race condition between sock_close() and sockfs_setattr() tcp: verify the checksum of the first data segment in a new connection net/sched: act_simple: fix parsing of TCA_DEF_DATA net: dsa: add error handling for pskb_trim_rcsum ipv6: allow PMTU exceptions to local routes cdc_ncm: avoid padding beyond end of skb bonding: re-evaluate force_primary when the primary slave name changes ANDROID: sdcardfs: fix potential crash when reserved_mb is not zero ANDROID: xt_qtaguid: Remove unnecessary null checks to device's name ANDROID: Add kconfig to make dm-verity check_at_most_once default enabled Conflicts: net/netfilter/xt_qtaguid.c Change-Id: I5c94ff8a691b9d84899d7863fbd309aa41c5c338 Signed-off-by: Isaac J. Manjarres <isaacm@codeaurora.org> |
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Isaac J. Manjarres
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bbea3fef30 |
Merge android-4.14.51 (a51b40c) into msm-4.14
* remotes/origin/tmp-a51b40c: Linux 4.14.51 tcp: do not overshoot window_clamp in tcp_rcv_space_adjust() Btrfs: make raid6 rebuild retry more Btrfs: fix scrub to repair raid6 corruption Revert "Btrfs: fix scrub to repair raid6 corruption" ARM: kexec: fix kdump register saving on panic() ARM: 8758/1: decompressor: restore r1 and r2 just before jumping to the kernel ARM: 8753/1: decompressor: add a missing parameter to the addruart macro efi/libstub/arm64: Handle randomized TEXT_OFFSET parisc: Move setup_profiling_timer() out of init section sched/deadline: Make the grub_reclaim() function static sched/debug: Move the print_rt_rq() and print_dl_rq() declarations to kernel/sched/sched.h drm/dumb-buffers: Integer overflow in drm_mode_create_ioctl() locking/percpu-rwsem: Annotate rwsem ownership transfer by setting RWSEM_OWNER_UNKNOWN locking/rwsem: Add a new RWSEM_ANONYMOUSLY_OWNED flag clk: imx6ull: use OSC clock during AXI rate change ARM: davinci: board-dm646x-evm: set VPIF capture card name ARM: davinci: board-dm646x-evm: pass correct I2C adapter id for VPIF ARM: davinci: dm646x: fix timer interrupt generation i2c: viperboard: return message count on master_xfer success i2c: pmcmsp: fix error return from master_xfer i2c: pmcmsp: return message count on master_xfer success ARM: keystone: fix platform_domain_notifier array overrun usb: musb: fix remote wakeup racing with suspend afs: Fix the non-encryption of calls mtd: Fix comparison in map_word_andequal() x86/pkeys/selftests: Add a test for pkey 0 x86/pkeys/selftests: Save off 'prot' for allocations x86/pkeys/selftests: Fix pointer math x86/pkeys/selftests: Fix pkey exhaustion test off-by-one x86/pkeys/selftests: Add PROT_EXEC test x86/pkeys/selftests: Factor out "instruction page" x86/pkeys/selftests: Allow faults on unknown keys x86/pkeys/selftests: Remove dead debugging code, fix dprint_in_signal x86/pkeys/selftests: Stop using assert() x86/pkeys/selftests: Give better unexpected fault error messages x86/selftests: Add mov_to_ss test x86/mpx/selftests: Adjust the self-test to fresh distros that export the MPX ABI x86/pkeys/selftests: Adjust the self-test to fresh distros that export the pkeys ABI objtool, kprobes/x86: Sync the latest <asm/insn.h> header with tools/objtool/arch/x86/include/asm/insn.h uprobes/x86: Prohibit probing on MOV SS instruction kprobes/x86: Prohibit probing on exception masking instructions ocfs2: take inode cluster lock before moving reflinked inode from orphan dir proc/kcore: don't bounds check against address 0 init: fix false positives in W+X checking net sched actions: fix invalid pointer dereferencing if skbedit flags missing ixgbe: return error on unsupported SFP module when resetting x86: Delay skip of emulated hypercall instruction KVM: Extend MAX_IRQ_ROUTES to 4096 for all archs rxrpc: Fix the min security level for kernel calls rxrpc: Fix error reception on AF_INET6 sockets qede: Fix gfp flags sent to rdma event node allocation qed: Fix l2 initializations over iWARP personality tipc: eliminate KMSAN uninit-value in strcmp complaint agp: uninorth: make two functions static cifs: smb2ops: Fix listxattr() when there are no EAs arm64: Add MIDR encoding for NVIDIA CPUs can: dev: increase bus-off message severity net: aquantia: driver should correctly declare vlan_features bits x86/xen: Reset VCPU0 info pointer after shared_info remap mac80211: use timeout from the AddBA response instead of the request ARM: dts: cygnus: fix irq type for arm global timer driver core: add __printf verification to __ata_ehi_pushv_desc drm/omap: handle alloc failures in omap_connector drm/omap: check return value from soc_device_match drm/omap: fix possible NULL ref issue in tiler_reserve_2d drm/omap: fix uninitialized ret variable drm/omap: silence unititialized variable warning mac80211: Adjust SAE authentication timeout tee: check shm references are consistent in offset/size sh: fix build failure for J2 cpu with SMP disabled sched/core: Introduce set_special_state() spi: bcm2835aux: ensure interrupts are enabled for shared handler RDMA/cma: Do not query GID during QP state transition to RTR IB/hfi1: Fix memory leak in exception path in get_irq_affinity() IB/hfi1 Use correct type for num_user_context smc: fix sendpage() call ARM: OMAP1: ams-delta: fix deferred_fiq handler nvme: Set integrity flag for user passthrough commands nvme: fix potential memory leak in option parsing iommu/vt-d: fix shift-out-of-bounds in bug checking arm64: tegra: Make BCM89610 PHY interrupt as active low kthread, sched/wait: Fix kthread_parkme() wait-loop stop_machine, sched: Fix migrate_swap() vs. active_balance() deadlock parisc: drivers.c: Fix section mismatches bpf, x64: fix memleak when not converging after image scsi: vmw-pvscsi: return DID_BUS_BUSY for adapter-initated aborts hexagon: export csum_partial_copy_nocheck hexagon: add memset_io() helper Input: atmel_mxt_ts - fix the firmware update ARM: dts: logicpd-som-lv: Fix Audio Mute ARM: dts: logicpd-som-lv: Fix WL127x Startup Issues ARM: OMAP2+: powerdomain: use raw_smp_processor_id() for trace dt-bindings: panel: lvds: Fix path to display timing bindings ARM: davinci: board-dm355-evm: fix broken networking ARM: davinci: board-omapl138-hawk: fix GPIO numbers for MMC/SD lookup ARM: davinci: board-da850-evm: fix GPIO lookup for MMC/SD ARM: davinci: board-da830-evm: fix GPIO lookup for MMC/SD IB/core: Make ib_mad_client_id atomic <linux/stringhash.h>: fix end_name_hash() for 64bit long IB/rxe: avoid double kfree_skb IB/rxe: add RXE_START_MASK for rxe_opcode IB_OPCODE_RC_SEND_ONLY_INV RDMA/iwpm: fix memory leak on map_info RDMA/cma: Fix use after destroy access to net namespace for IPoIB IB/uverbs: Fix validating mandatory attributes IB: make INFINIBAND_ADDR_TRANS configurable ib_srp: depend on INFINIBAND_ADDR_TRANS ib_srpt: depend on INFINIBAND_ADDR_TRANS nvmet-rdma: depend on INFINIBAND_ADDR_TRANS nvme: depend on INFINIBAND_ADDR_TRANS tipc: fix bug in function tipc_nl_node_dump_monitor i2c: sprd: Fix the i2c count issue i2c: sprd: Prevent i2c accesses after suspend is called bpf: fix uninitialized variable in bpf tools x86/cpu/intel: Add missing TLB cpuid values ata: ahci: mvebu: override ahci_stop_engine for mvebu AHCI libahci: Allow drivers to override stop_engine KVM: arm/arm64: vgic: fix possible spectre-v1 in vgic_mmio_read_apr() arm64: fix possible spectre-v1 in ptrace_hbp_get_event() blk-mq: fix sysfs inflight counter HID: intel-ish-hid: use put_device() instead of kfree() rpmsg: added MODULE_ALIAS for rpmsg_char remoteproc: qcom: Fix potential device node leaks perf/x86/intel: Don't enable freeze-on-smi for PerfMon V1 rds: ib: Fix missing call to rds_ib_dev_put in rds_ib_setup_qp selftests: ftrace: Add a testcase for multiple actions on trigger HID: wacom: Release device resource data obtained by devres_alloc() HID: lenovo: Add support for IBM/Lenovo Scrollpoint mice arm64: ptrace: remove addr_limit manipulation net: ethtool: Add missing kernel doc for FEC parameters thermal: int3403_thermal: Fix NULL pointer deref on module load / probe drm/amdkfd: fix clock counter retrieval for node without GPU ACPI / watchdog: Prefer iTCO_wdt on Lenovo Z50-70 ARM: dts: da850: fix W=1 warnings with pinmux node net: phy: marvell: clear wol event before setting it powerpc/powernv/memtrace: Let the arch hotunplug code flush cache dt-bindings: meson-uart: DT fix s/clocks-names/clock-names/ ACPI / PM: Blacklist Low Power S0 Idle _DSM for ThinkPad X1 Tablet(2016) usb: typec: ucsi: fix tracepoint related build error mm: memcg: add __GFP_NOWARN in __memcg_schedule_kmem_cache_create() kexec_file: do not add extra alignment to efi memmap proc: revalidate kernel thread inodes to root:root mm, pagemap: fix swap offset value for PMD migration entry scsi: isci: Fix infinite loop in while loop scsi: storvsc: Set up correct queue depth values for IDE devices parisc: time: Convert read_persistent_clock() to read_persistent_clock64() vfs: Undo an overly zealous MS_RDONLY -> SB_RDONLY conversion net: hns: Avoid action name truncation blkcg: init root blkcg_gq under lock drm/msm: don't deref error pointer in the msm_fbdev_create error path drm/msm/dsi: use correct enum in dsi_get_cmd_fmt drm/msm: Fix possible null dereference on failure of get_pages() ASoC: msm8916-wcd-analog: use threaded context for mbhc events netfilter: nf_tables: fix out-of-bounds in nft_chain_commit_update netfilter: nf_tables: NAT chain and extensions require NF_TABLES scsi: target: fix crash with iscsi target and dvd scsi: megaraid_sas: Do not log an error if FW successfully initializes. scsi: iscsi: respond to netlink with unicast when appropriate tipc: fix infinite loop when dumping link monitor summary blkcg: don't hold blkcg lock when deactivating policy spi: cadence: Add usleep_range() for cdns_spi_fill_tx_fifo() ASoC: topology: Check widget kcontrols before deref. xen: xenbus_dev_frontend: Really return response string ASoC: topology: Fix bugs of freeing soc topology PCI: kirin: Fix reset gpio name soc: bcm2835: Make !RASPBERRYPI_FIRMWARE dummies return failure soc: bcm: raspberrypi-power: Fix use of __packed eCryptfs: don't pass up plaintext names when using filename encryption ASoC: rt5514: Add the missing register in the readable table clk: honor CLK_MUX_ROUND_CLOSEST in generic clk mux dt-bindings: dmaengine: rcar-dmac: document R8A77965 support dt-bindings: serial: sh-sci: Add support for r8a77965 (H)SCIF dt-bindings: pinctrl: sunxi: Fix reference to driver doc: Add vendor prefix for Kieback & Peter GmbH spi: sh-msiof: Fix bit field overflow writes to TSCR/RSCR MIPS: dts: Boston: Fix PCI bus dtc warnings: isofs: fix potential memory leak in mount option parsing s390/smsgiucv: disable SMSG on module unload MIPS: io: Add barrier after register read in readX() fsnotify: fix ignore mask logic in send_to_group() perf report: Fix switching to another perf.data file nfp: ignore signals when communicating with management FW MIPS: io: Prevent compiler reordering writeX() x86: Add check for APIC access address for vmentry of L2 guests KVM: X86: fix incorrect reference of trace_kvm_pi_irte_update Input: synaptics-rmi4 - fix an unchecked out of memory error path clocksource/drivers/imx-tpm: Correct some registers operation flow stop_machine: Disable preemption when waking two stopper threads When cpu_stop_queue_two_works() begins to wake the stopper threads, it does so without preemption disabled, which leads to the following race condition: The source CPU calls cpu_stop_queue_two_works(), with cpu1 as the source CPU, and cpu2 as the destination CPU. When adding the stopper threads to the wake queue used in this function, the source CPU stopper thread is added first, and the destination CPU stopper thread is added last. When wake_up_q() is invoked to wake the stopper threads, the threads are woken up in the order that they are queued in, so the source CPU's stopper thread is woken up first, and it preempts the thread running on the source CPU. The stopper thread will then execute on the source CPU, disable preemption, and begin executing multi_cpu_stop() and wait for an ack from the destination CPU's stopper thread, with preemption still disabled. Since the worker thread that woke up the stopper thread on the source CPU is affine to the source CPU, and preemption is disabled on the source CPU, that thread will never run to dequeue the destination CPU's stopper thread from the wake queue, and thus, the destination CPU's stopper thread will never run, causing the source CPU's stopper thread to wait forever, and stall. Disable preemption when waking the stopper threads in cpu_stop_queue_two_works() to ensure that the worker thread that is waking up the stopper threads isn't preempted by the source CPU's stopper thread, and permanently scheduled out, leaving the remaining stopper thread asleep in the wake queue. Conflicts: drivers/gpu/drm/msm/msm_gem.c include/linux/sched.h kernel/kthread.c Change-Id: I177cb8516cdfe50d61cb948ed342d330e61376a1 Signed-off-by: Prasad Sodagudi <psodagud@codeaurora.org> Signed-off-by: Isaac J. Manjarres <isaacm@codeaurora.org> |
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qctecmdr Service
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26ca81d660 | Merge "Revert "mm: memory: reduce fault_around_bytes"" | ||
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Vinayak Menon
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0b4f73c9b4 |
Revert "mm: memory: reduce fault_around_bytes"
This reverts commit 23f8a2f5f2e0. fault_around_bytes were reduced as it was found to cause reclaim issues. The reclaim issues were mainly because of faultaround producing young ptes. The following patches will make faultaround produce old ptes. Thus revert the fault_around_bytes to its original value. Change-Id: If9a385eead5a5d7a0d40fed41ddf4753e15d2998 Signed-off-by: Vinayak Menon <vinmenon@codeaurora.org> |
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Minchan Kim
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62478c622a |
mm: Support address range reclaim
This patch adds address range reclaim of a process. The requirement is following as, Like webkit1, it uses a address space for handling multi tabs. IOW, it uses *one* process model so all tabs shares address space of the process. In such scenario, per-process reclaim is rather coarse-grained so this patch supports more fine-grained reclaim for being able to reclaim target address range of the process. For reclaim target range, you should use following format. echo [addr] [size-byte] > /proc/pid/reclaim The addr should be page-aligned. So now reclaim konb's interface is following as. echo file > /proc/pid/reclaim reclaim file-backed pages only echo anon > /proc/pid/reclaim reclaim anonymous pages only echo all > /proc/pid/reclaim reclaim all pages echo 0x100000 8K > /proc/pid/reclaim reclaim pages in (0x100000 - 0x102000) Change-Id: I111131d31be1cfcfa246617b634a9a8bc4078098 Signed-off-by: Minchan Kim <minchan@kernel.org> Patch-mainline: linux-mm @ 9 May 2013 08:39:01 [vinmenon@codeaurora.org: trivial merge conflict fixes] Signed-off-by: Vinayak Menon <vinmenon@codeaurora.org> |
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Minchan Kim
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434fe4e62b |
mm: Enhance per process reclaim to consider shared pages
Some pages could be shared by several processes. (ex, libc) In case of that, it's too bad to reclaim them from the beginnig. This patch causes VM to keep them on memory until last task try to reclaim them so shared pages will be reclaimed only if all of task has gone swapping out. This feature doesn't handle non-linear mapping on ramfs because it's very time-consuming and doesn't make sure of reclaiming and not common. Change-Id: I7e5f34f2e947f5db6d405867fe2ad34863ca40f7 Signed-off-by: Sangseok Lee <sangseok.lee@lge.com> Signed-off-by: Minchan Kim <minchan@kernel.org> Patch-mainline: linux-mm @ 9 May 2013 16:21:27 [vinmenon@codeaurora.org: trivial merge conflict fixes + changes to make the patch work with 4.14 kernel + Avoid targetted reclaim from ksm since vma_address(page) is not valid for a ksm page] Signed-off-by: Vinayak Menon <vinmenon@codeaurora.org> |
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Minchan Kim
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fc50cf4478 |
mm: Remove shrink_page
By previous patch, shrink_page_list can handle pages from multiple zone so let's remove shrink_page. Change-Id: I3526377aa6ee6142b8f3ec63396e7ada1e442505 Signed-off-by: Minchan Kim <minchan@kernel.org> Patch-mainline: linux-mm @ 22 Apr 2013 17:45:03 [vinmenon@codeaurora.org: trivial merge conflict fixes] Signed-off-by: Vinayak Menon <vinmenon@codeaurora.org> |
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Minchan Kim
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54d3ac19a0 |
mm: make shrink_page_list with pages work from multiple zones
Shrink_page_list expects all pages come from a same zone but it's too limited to use. This patch removes the dependency so next patch can use shrink_page_list with pages from multiple zones. Change-Id: I34469b7f0a79f2b79e30e40033ba8b3e1dd5f2d0 Signed-off-by: Minchan Kim <minchan@kernel.org> Patch-mainline: linux-mm @ 9 May 2013 16:21:25 [vinmenon@codeaurora.org: changes for node based lrus. shrink_page_list expects all pages come from same node.] Signed-off-by: Vinayak Menon <vinmenon@codeaurora.org> |
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Minchan Kim
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e6caa6025c |
mm: Per process reclaim
These day, there are many platforms available in the embedded market and they are smarter than kernel which has very limited information about working set so they want to involve memory management more heavily like android's lowmemory killer and ashmem or recent many lowmemory notifier. One of the simple imagine scenario about userspace's intelligence is that platform can manage tasks as forground and background so it would be better to reclaim background's task pages for end-user's *responsibility* although it has frequent referenced pages. This patch adds new knob "reclaim under proc/<pid>/" so task manager can reclaim any target process anytime, anywhere. It could give another method to platform for using memory efficiently. It can avoid process killing for getting free memory, which was really terrible experience because I lost my best score of game I had ever after I switch the phone call while I enjoyed the game. Reclaim file-backed pages only. echo file > /proc/PID/reclaim Reclaim anonymous pages only. echo anon > /proc/PID/reclaim Reclaim all pages echo all > /proc/PID/reclaim Change-Id: Iabdb7bc2ef3dc4d94e3ea005fbe18f4cd06739ab Signed-off-by: Minchan Kim <minchan@kernel.org> Patch-mainline: linux-mm @ 9 May 2013 16:21:24 [vinmenon@codeaurora.org: trivial merge conflict fixes, and minor tweak of the commit msg] Signed-off-by: Vinayak Menon <vinmenon@codeaurora.org> |
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Minchan Kim
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16ef91359c |
mm: prevent to write out dirty page in CMA by may_writepage
Now, local variable references in shrink_page_list is PAGEREF_RECLAIM_CLEAN as default. It is for preventing to reclaim dirty pages when CMA try to migrate pages. Strictly speaking, we don't need it because CMA already didn't allow to write out by .may_writepage = 0 in reclaim_clean_pages_from_list. Morever, it has a problem to prevent anonymous pages's swap out when we use force_reclaim = true in shrink_page_list(ex, per process reclaim can do it) So this patch makes references's default value to PAGEREF_RECLAIM and declare .may_writepage = 0 of scan_control in CMA part to make code more clear. Change-Id: I5edc3c955d106ecebc4949ce27daf5b7b7a18089 Cc: Marek Szyprowski <m.szyprowski@samsung.com> Cc: Mel Gorman <mgorman@suse.de> Reported-by: Minkyung Kim <minkyung88@lge.com> Signed-off-by: Minchan Kim <minchan@kernel.org> Patch-mainline: linux-mm @ 9 May 2013 16:21:23 [vinmenon@codeaurora.org: trivial merge conflict fixes] Signed-off-by: Vinayak Menon <vinmenon@codeaurora.org> |
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Vinayak Menon
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1cf9b916b6 |
mm: vmpressure: allow in-kernel clients to subscribe for events
Currently, vmpressure is tied to memcg and its events are available only to userspace clients. This patch removes the dependency on CONFIG_MEMCG and adds a mechanism for in-kernel clients to subscribe for vmpressure events (in fact raw vmpressure values are delivered instead of vmpressure levels, to provide clients more flexibility to take actions on custom pressure levels which are not currently defined by vmpressure module). Change-Id: I38010f166546e8d7f12f5f355b5dbfd6ba04d587 Signed-off-by: Vinayak Menon <vinmenon@codeaurora.org> |
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Greg Kroah-Hartman
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08850d51f9 |
This is the 4.14.52 stable release
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