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>

2018-07-05 11:41:58 -07:00

..

kasan

Merge remote-tracking branch 'remotes/origin/tmp-cb1f148' into msm-4.14

2018-05-30 17:10:28 -07:00

backing-dev.c

bdi: wake up concurrent wb_shutdown() callers.

2018-05-16 10:10:25 +02:00

balloon_compaction.c

mm/migrate: new migrate mode MIGRATE_SYNC_NO_COPY

2017-09-08 18:26:46 -07:00

bootmem.c

Merge remote-tracking branch 'remotes/origin/tmp-39dae59' into msm-next

2017-11-06 11:37:20 -08:00

cleancache.c

fs: switch ->s_uuid to uuid_t

2017-06-05 16:59:12 +02:00

cma_debug.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

cma.c

mm: cma: Register with show_mem notification framework

2018-07-05 11:41:56 -07:00

cma.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

compaction.c

mm: compaction: fix the page state calculation in too_many_isolated

2018-05-10 23:32:47 -07:00

debug_page_ref.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

debug.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

dmapool.c

lib/vsprintf.c: remove %Z support

2017-02-27 18:43:47 -08:00

early_ioremap.c

mm/early_ioremap: Fix boot hang with earlyprintk=efi,keep

2018-02-25 11:08:03 +01:00

fadvise.c

mm/fadvise: discard partial page if endbyte is also EOF

2018-04-26 11:02:15 +02:00

failslab.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

filemap.c

mm: make faultaround produce old ptes

2018-06-28 22:34:46 -07:00

frame_vector.c

mm/frame_vector.c: release a semaphore in 'get_vaddr_frames()'

2018-03-03 10:24:21 +01:00

frontswap.c

…

gup.c

proc: do not access cmdline nor environ from file-backed areas

2018-05-19 10:20:27 +02:00

highmem.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

hmm.c

mm/hmm: hmm_pfns_bad() was accessing wrong struct

2018-04-24 09:36:22 +02:00

huge_memory.c

Merge "mm: introduce __vm_normal_page()"

2018-06-12 23:20:25 -07:00

hugetlb_cgroup.c

…

hugetlb.c

mm: cache some VMA fields in the vm_fault structure

2018-06-04 15:51:24 +05:30

hwpoison-inject.c

mm: hwpoison: call shake_page() unconditionally

2017-05-03 15:52:12 -07:00

init-mm.c

mm: protect mm_rb tree with a rwlock

2018-06-04 15:51:45 +05:30

internal.h

mm: provide speculative fault infrastructure

2018-06-04 15:51:46 +05:30

interval_tree.c

lib/interval_tree: fast overlap detection

2017-09-08 18:26:49 -07:00

Kconfig

mm: Support address range reclaim

2018-06-26 11:18:05 +05:30

Kconfig.debug

mm: allow page poisoning to be enabled by default.

2018-04-25 15:14:57 +05:30

khugepaged.c

Merge "mm: introduce __vm_normal_page()"

2018-06-12 23:20:25 -07:00

kmemleak-test.c

…

kmemleak.c

mm/kmemleak.c: wait for scan completion before disabling free

2018-05-30 07:52:21 +02:00

ksm.c

mm: Enhance per process reclaim to consider shared pages

2018-06-26 11:18:04 +05:30

list_lru.c

mm: memcontrol: use vmalloc fallback for large kmem memcg arrays

2017-10-03 17:54:25 -07:00

maccess.c

…

madvise.c

mm: protect VMA modifications using VMA sequence count

2018-06-04 15:40:51 +05:30

Makefile

mm: vmpressure: allow in-kernel clients to subscribe for events

2018-06-26 11:18:01 +05:30

memblock.c

Revert "mm/memblock: fix a race between search and remove"

2018-05-24 11:50:40 +05:30

memcontrol.c

memcg: fix per_node_info cleanup

2018-05-16 10:10:24 +02:00

memory_hotplug.c

mm, oom: Try to online memory block before killing

2018-06-06 17:36:08 -07:00

memory-failure.c

mm: Enhance per process reclaim to consider shared pages

2018-06-26 11:18:04 +05:30

memory.c

mm: disable fault around on emulated access bit architecture

2018-06-28 23:22:08 -07:00

mempolicy.c

Merge "mm: introduce __vm_normal_page()"

2018-06-12 23:20:25 -07:00

mempool.c

kasan: detect invalid frees for large mempool objects

2018-02-12 05:53:56 -08:00

memtest.c

Merge remote-tracking branch 'remotes/origin/tmp-39dae59' into msm-next

2017-11-06 11:37:20 -08:00

migrate.c

mm: Enhance per process reclaim to consider shared pages

2018-06-26 11:18:04 +05:30

mincore.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

mlock.c

mm: protect VMA modifications using VMA sequence count

2018-06-04 15:40:51 +05:30

mm_init.c

…

mmap.c

Merge "Merge android-4.14.49 into msm-4.14"

2018-06-15 16:17:20 -07:00

mmu_context.c

sched/headers: Prepare to move the task_lock()/unlock() APIs to <linux/sched/task.h>

2017-03-02 08:42:38 +01:00

mmu_notifier.c

mm/mmu_notifier: kill invalidate_page

2017-08-31 16:13:00 -07:00

mmzone.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

mprotect.c

mm: protect VMA modifications using VMA sequence count

2018-06-04 15:40:51 +05:30

mremap.c

mm: protect mremap() against SPF hanlder

2018-06-04 15:41:05 +05:30

msync.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

nobootmem.c

Merge remote-tracking branch 'remotes/origin/tmp-39dae59' into msm-next

2017-11-06 11:37:20 -08:00

nommu.c

mm: introduce INIT_VMA()

2018-06-04 14:01:37 +05:30

oom_kill.c

mm, oom: run the showmem notifier in oom

2018-07-05 11:41:57 -07:00

page_alloc.c

mm: run the showmem notifier in alloc failure

2018-07-05 11:41:58 -07:00

page_counter.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

page_ext.c

mm/page_ext.c: check if page_ext is not prepared

2017-11-24 08:37:05 +01:00

page_idle.c

mm: thp: fix potential clearing to referenced flag in page_idle_clear_pte_refs_one()

2018-05-30 07:52:24 +02:00

page_io.c

mm, swap: skip swapcache for swapin of synchronous device

2018-05-22 11:23:24 +05:30

page_isolation.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

page_owner.c

Merge remote-tracking branch 'remotes/origin/tmp-cb1f148' into msm-4.14

2018-05-30 17:10:28 -07:00

page_poison.c

mm: allow page poisoning to be enabled by default.

2018-04-25 15:14:57 +05:30

page_vma_mapped.c

mm, page_vma_mapped: Drop faulty pointer arithmetics in check_pte()

2018-01-23 19:58:21 +01:00

page-writeback.c

writeback: safer lock nesting

2018-04-24 09:36:39 +02:00

pagewalk.c

mm/pagewalk.c: report holes in hugetlb ranges

2017-11-24 08:37:04 +01:00

percpu-internal.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

percpu-km.c

percpu: add __GFP_NORETRY semantics to the percpu balancing path

2018-04-08 14:26:29 +02:00

percpu-stats.c

percpu: fix starting offset for chunk statistics traversal

2017-09-27 14:45:57 -07:00

percpu-vm.c

percpu: add __GFP_NORETRY semantics to the percpu balancing path

2018-04-08 14:26:29 +02:00

percpu.c

percpu: include linux/sched.h for cond_resched()

2018-05-09 09:51:48 +02:00

pgtable-generic.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

process_vm_access.c

sched/headers: Prepare for new header dependencies before moving code to <linux/sched/mm.h>

2017-03-02 08:42:28 +01:00

quicklist.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

readahead.c

ANDROID: mm: fix filler function type mismatch

2018-04-26 16:03:37 -07:00

rmap.c

mm: Enhance per process reclaim to consider shared pages

2018-06-26 11:18:04 +05:30

rodata_test.c

mm: fix RODATA_TEST failure "rodata_test: test data was not read only"

2017-10-03 17:54:24 -07:00

shmem.c

mm: swap: unify cluster-based and vma-based swap readahead

2018-05-22 11:24:18 +05:30

showmem.c

mm: showmem: make the notifiers atomic

2017-07-07 16:25:12 -07:00

slab_common.c

kmemcheck: stop using GFP_NOTRACK and SLAB_NOTRACK

2018-02-22 15:42:23 +01:00

slab.c

Merge remote-tracking branch 'remotes/origin/tmp-cb1f148' into msm-4.14

2018-05-30 17:10:28 -07:00

slab.h

kmemcheck: stop using GFP_NOTRACK and SLAB_NOTRACK

2018-02-22 15:42:23 +01:00

slob.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

slub.c

Merge remote-tracking branch 'remotes/origin/tmp-474d3c4' into msm-4.14

2018-02-23 15:37:55 -08:00

sparse-vmemmap.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

sparse.c

mm: sections are not offlined during memory hotremove

2018-05-16 10:10:27 +02:00

swap_cgroup.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

swap_ratio.c

mm: swap_ratio: consider swap slots

2018-05-22 11:24:19 +05:30

swap_slots.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

swap_state.c

mm: protect VMA modifications using VMA sequence count

2018-06-04 15:40:51 +05:30

swap.c

mm: introduce __lru_cache_add_active_or_unevictable

2018-06-04 15:51:43 +05:30

swapfile.c

Merge remote-tracking branch 'remotes/origin/tmp-cb1f148' into msm-4.14

2018-05-30 17:10:28 -07:00

truncate.c

mm/truncate.c: fix THP handling in invalidate_mapping_pages()

2017-07-10 16:32:32 -07:00

usercopy.c

mm/usercopy: Drop extra is_vmalloc_or_module() check

2017-04-05 12:30:18 -07:00

userfaultfd.c

userfaultfd: shmem: wire up shmem_mfill_zeropage_pte

2017-09-06 17:27:28 -07:00

util.c

mm: treat indirectly reclaimable memory as free in overcommit logic

2018-05-13 20:10:20 +05:30

vmacache.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

vmalloc.c

vmalloc: fix __GFP_HIGHMEM usage for vmalloc_32 on 32b systems

2018-02-25 11:08:04 +01:00

vmpressure.c

mm: vmpressure: allow in-kernel clients to subscribe for events

2018-06-26 11:18:01 +05:30

vmscan.c

mm: Enhance per process reclaim to consider shared pages

2018-06-26 11:18:04 +05:30

vmstat.c

Merge "mm: add speculative page fault vmstats"

2018-06-13 15:30:25 -07:00

workingset.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

z3fold.c

z3fold: fix memory leak

2018-05-30 07:52:23 +02:00

zbud.c

…

zpool.c

…

zsmalloc.c

zsmalloc: calling zs_map_object() from irq is a bug

2017-12-14 09:53:10 +01:00

zswap.c

mm, swap, frontswap: fix THP swap if frontswap enabled

2018-02-28 10:19:41 +01:00