Sasha Levin 309381feae mm: dump page when hitting a VM_BUG_ON using VM_BUG_ON_PAGE ...

Most of the VM_BUG_ON assertions are performed on a page.  Usually, when
one of these assertions fails we'll get a BUG_ON with a call stack and
the registers.

I've recently noticed based on the requests to add a small piece of code
that dumps the page to various VM_BUG_ON sites that the page dump is
quite useful to people debugging issues in mm.

This patch adds a VM_BUG_ON_PAGE(cond, page) which beyond doing what
VM_BUG_ON() does, also dumps the page before executing the actual
BUG_ON.

[akpm@linux-foundation.org: fix up includes]
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
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>

2014-01-23 16:36:50 -08:00

..

backing-dev.c

mm/backing-dev.c: check user buffer length before copying data to the related user buffer

2013-09-11 15:58:03 -07:00

balloon_compaction.c

mm: print more details for bad_page()

2014-01-23 16:36:50 -08:00

bootmem.c

mm/bootmem.c: remove unused local `map'

2013-11-13 12:09:09 +09:00

bounce.c

mm/bounce.c: fix a regression where MS_SNAP_STABLE (stable pages snapshotting) was ignored

2013-09-30 14:31:02 -07:00

cleancache.c

mm: dump page when hitting a VM_BUG_ON using VM_BUG_ON_PAGE

2014-01-23 16:36:50 -08:00

compaction.c

mm: dump page when hitting a VM_BUG_ON using VM_BUG_ON_PAGE

2014-01-23 16:36:50 -08:00

debug-pagealloc.c

mm, x86: Remove debug_pagealloc_enabled

2011-12-06 09:24:07 +01:00

dmapool.c

dmapool: make DMAPOOL_DEBUG detect corruption of free marker

2012-12-11 17:22:24 -08:00

fadvise.c

teach SYSCALL_DEFINE<n> how to deal with long long/unsigned long long

2013-03-03 22:46:22 -05:00

failslab.c

switch debugfs to umode_t

2012-01-03 22:54:56 -05:00

filemap_xip.c

seqcount: Add lockdep functionality to seqcount/seqlock structures

2013-11-06 12:40:26 +01:00

filemap.c

mm: dump page when hitting a VM_BUG_ON using VM_BUG_ON_PAGE

2014-01-23 16:36:50 -08:00

fremap.c

mm: fix use-after-free in sys_remap_file_pages

2014-01-02 14:40:30 -08:00

frontswap.c

frontswap: fix incorrect zeroing and allocation size for frontswap_map

2013-06-12 16:29:46 -07:00

highmem.c

Merge tag 'virtio-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux

2012-12-20 08:37:05 -08:00

huge_memory.c

mm: dump page when hitting a VM_BUG_ON using VM_BUG_ON_PAGE

2014-01-23 16:36:50 -08:00

hugetlb_cgroup.c

mm: dump page when hitting a VM_BUG_ON using VM_BUG_ON_PAGE

2014-01-23 16:36:50 -08:00

hugetlb.c

mm: dump page when hitting a VM_BUG_ON using VM_BUG_ON_PAGE

2014-01-23 16:36:50 -08:00

hwpoison-inject.c

mm/hwpoison: add '#' to hwpoison_inject

2014-01-21 16:19:48 -08:00

init-mm.c

atomic: use <linux/atomic.h>

2011-07-26 16:49:47 -07:00

internal.h

mm: dump page when hitting a VM_BUG_ON using VM_BUG_ON_PAGE

2014-01-23 16:36:50 -08:00

interval_tree.c

mm: add CONFIG_DEBUG_VM_RB build option

2012-10-09 16:22:42 +09:00

Kconfig

mm: add missing dependency in Kconfig

2013-12-18 19:04:52 -08:00

Kconfig.debug

mm: more intensive memory corruption debugging

2012-01-10 16:30:42 -08:00

kmemcheck.c

…

kmemleak-test.c

…

kmemleak.c

mm: kmemleak: avoid false negatives on vmalloc'ed objects

2013-11-13 12:09:07 +09:00

ksm.c

mm: dump page when hitting a VM_BUG_ON using VM_BUG_ON_PAGE

2014-01-23 16:36:50 -08:00

list_lru.c

mm: list_lru: fix almost infinite loop causing effective livelock

2013-10-30 12:57:46 -07:00

maccess.c

mm: Map most files to use export.h instead of module.h

2011-10-31 09:20:12 -04:00

madvise.c

mm/hwpoison: fix traversal of hugetlbfs pages to avoid printk flood

2013-09-30 14:31:02 -07:00

Makefile

list: add a new LRU list type

2013-09-10 18:56:30 -04:00

memblock.c

mm/memblock: use WARN_ONCE when MAX_NUMNODES passed as input parameter

2014-01-21 16:19:48 -08:00

memcontrol.c

mm: dump page when hitting a VM_BUG_ON using VM_BUG_ON_PAGE

2014-01-23 16:36:50 -08:00

memory_hotplug.c

mm: print more details for bad_page()

2014-01-23 16:36:50 -08:00

memory-failure.c

mm/migrate: remove putback_lru_pages, fix comment on putback_movable_pages

2014-01-21 16:19:49 -08:00

memory.c

mm: dump page when hitting a VM_BUG_ON using VM_BUG_ON_PAGE

2014-01-23 16:36:50 -08:00

mempolicy.c

mm/mempolicy: fix !vma in new_vma_page()

2013-12-18 19:04:52 -08:00

mempool.c

mm/mempool.c: convert kmalloc_node(...GFP_ZERO...) to kzalloc_node(...)

2013-09-11 15:58:14 -07:00

migrate.c

mm: dump page when hitting a VM_BUG_ON using VM_BUG_ON_PAGE

2014-01-23 16:36:50 -08:00

mincore.c

swap: make each swap partition have one address_space

2013-02-23 17:50:17 -08:00

mlock.c

mm: dump page when hitting a VM_BUG_ON using VM_BUG_ON_PAGE

2014-01-23 16:36:50 -08:00

mm_init.c

mm: numa: Change page last {nid,pid} into {cpu,pid}

2013-10-09 14:47:45 +02:00

mmap.c

mm/mmap.c: add mlock_future_check() helper

2014-01-21 16:19:44 -08:00

mmu_context.c

mm: remove old aio use_mm() comment

2013-05-07 18:38:27 -07:00

mmu_notifier.c

treewide: relase -> release

2013-06-28 14:34:33 +02:00

mmzone.c

mm: numa: Change page last {nid,pid} into {cpu,pid}

2013-10-09 14:47:45 +02:00

mprotect.c

mm: numa: do not automatically migrate KSM pages

2014-01-21 16:19:48 -08:00

mremap.c

mm: revert mremap pud_free anti-fix

2013-10-16 21:35:53 -07:00

msync.c

…

nobootmem.c

mm/memblock: switch to use NUMA_NO_NODE instead of MAX_NUMNODES

2014-01-21 16:19:46 -08:00

nommu.c

mm: add overcommit_kbytes sysctl variable

2014-01-21 16:19:44 -08:00

oom_kill.c

oom_kill: add rcu_read_lock() into find_lock_task_mm()

2014-01-21 16:19:46 -08:00

page_alloc.c

mm: dump page when hitting a VM_BUG_ON using VM_BUG_ON_PAGE

2014-01-23 16:36:50 -08:00

page_cgroup.c

Merge branch 'akpm' (incoming from Andrew)

2014-01-21 19:05:45 -08:00

page_io.c

mm: dump page when hitting a VM_BUG_ON using VM_BUG_ON_PAGE

2014-01-23 16:36:50 -08:00

page_isolation.c

mm: memory-hotplug: enable memory hotplug to handle hugepage

2013-09-11 15:57:48 -07:00

page-writeback.c

writeback: fix negative bdi max pause

2013-10-16 21:35:53 -07:00

pagewalk.c

mm/pagewalk.c: fix walk_page_range() access of wrong PTEs

2013-10-30 14:27:03 -07:00

percpu-km.c

…

percpu-vm.c

mm: fix kernel-doc warnings

2012-06-20 14:39:36 -07:00

percpu.c

Merge branch 'akpm' (incoming from Andrew)

2014-01-21 19:05:45 -08:00

pgtable-generic.c

mm: fix TLB flush race between migration, and change_protection_range

2013-12-18 19:04:51 -08:00

process_vm_access.c

Fix: compat_rw_copy_check_uvector() misuse in aio, readv, writev, and security keys

2013-03-12 11:05:45 -07:00

quicklist.c

mm: delete various needless include <linux/module.h>

2011-10-31 09:20:11 -04:00

readahead.c

readahead: fix sequential read cache miss detection

2013-11-13 12:09:09 +09:00

rmap.c

mm: dump page when hitting a VM_BUG_ON using VM_BUG_ON_PAGE

2014-01-23 16:36:50 -08:00

shmem.c

mm: dump page when hitting a VM_BUG_ON using VM_BUG_ON_PAGE

2014-01-23 16:36:50 -08:00

slab_common.c

memcg, kmem: rename cache_from_memcg to cache_from_memcg_idx

2013-11-13 12:09:10 +09:00

slab.c

Merge branch 'slab/next' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/linux

2013-11-22 08:10:34 -08:00

slab.h

memcg, kmem: rename cache_from_memcg to cache_from_memcg_idx

2013-11-13 12:09:10 +09:00

slob.c

mm/sl[aou]b: Move kmallocXXX functions to common code

2013-09-04 20:51:33 +03:00

slub.c

mm: dump page when hitting a VM_BUG_ON using VM_BUG_ON_PAGE

2014-01-23 16:36:50 -08:00

sparse-vmemmap.c

mm/sparse: use memblock apis for early memory allocations

2014-01-21 16:19:47 -08:00

sparse.c

mm/sparse: use memblock apis for early memory allocations

2014-01-21 16:19:47 -08:00

swap_state.c

mm: dump page when hitting a VM_BUG_ON using VM_BUG_ON_PAGE

2014-01-23 16:36:50 -08:00

swap.c

mm: dump page when hitting a VM_BUG_ON using VM_BUG_ON_PAGE

2014-01-23 16:36:50 -08:00

swapfile.c

mm: dump page when hitting a VM_BUG_ON using VM_BUG_ON_PAGE

2014-01-23 16:36:50 -08:00

truncate.c

truncate: drop 'oldsize' truncate_pagecache() parameter

2013-09-12 15:38:02 -07:00

util.c

mm: add overcommit_kbytes sysctl variable

2014-01-21 16:19:44 -08:00

vmalloc.c

mm/vmalloc: interchage the implementation of vmalloc_to_{pfn,page}

2014-01-21 16:19:44 -08:00

vmpressure.c

memcg: make cgroup_event deal with mem_cgroup instead of cgroup_subsys_state

2013-11-22 18:20:43 -05:00

vmscan.c

mm: dump page when hitting a VM_BUG_ON using VM_BUG_ON_PAGE

2014-01-23 16:36:50 -08:00

vmstat.c

mm: numa: return the number of base pages altered by protection changes

2013-11-13 12:09:11 +09:00

zbud.c

mm/zbud: fix some trivial typos in comments

2013-09-11 15:57:35 -07:00

zswap.c

mm/zswap.c: change params from hidden to ro

2014-01-23 16:36:50 -08:00