Xishi Qiu 6843d9254c mm: fix process accidentally killed by mce because of huge page migration ... Based on c8721bbbdd upstream, but only the bugfix portion pulled out. Hi Naoya or Greg, We found a bug in 3.10.x. The problem is that we accidentally have a hwpoisoned hugepage in free hugepage list. It could happend in the the following scenario: process A process B migrate_huge_page put_page (old hugepage) linked to free hugepage list hugetlb_fault hugetlb_no_page alloc_huge_page dequeue_huge_page_vma dequeue_huge_page_node (steal hwpoisoned hugepage) set_page_hwpoison_huge_page dequeue_hwpoisoned_huge_page (fail to dequeue) I tested this bug, one process keeps allocating huge page, and I use sysfs interface to soft offline a huge page, then received: "MCE: Killing UCP:2717 due to hardware memory corruption fault at 8200034" Upstream kernel is free from this bug because of these two commits: f15bdfa802 mm/memory-failure.c: fix memory leak in successful soft offlining c8721bbbdd mm: memory-hotplug: enable memory hotplug to handle hugepage The first one, although the problem is about memory leak, this patch moves unset_migratetype_isolate(), which is important to avoid the race. The latter is not a bug fix and it's too big, so I rewrite a small one. The following patch can fix this bug.(please apply f15bdfa802 first) Signed-off-by: Xishi Qiu <qiuxishi@huawei.com> Reviewed-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2014-02-20 11:06:12 -08:00
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backing-dev.c
balloon_compaction.c
bootmem.c
bounce.c	mm/bounce.c: fix a regression where MS_SNAP_STABLE (stable pages snapshotting) was ignored	2013-10-13 16:08:33 -07:00
cleancache.c
compaction.c	mm/compaction: respect ignore_skip_hint in update_pageblock_skip	2014-01-09 12:24:23 -08:00
debug-pagealloc.c
dmapool.c
fadvise.c
failslab.c
filemap_xip.c
filemap.c
fremap.c	mm: fix use-after-free in sys_remap_file_pages	2014-01-09 12:24:24 -08:00
frontswap.c	frontswap: fix incorrect zeroing and allocation size for frontswap_map	2013-06-12 16:29:46 -07:00
highmem.c
huge_memory.c	thp: fix copy_page_rep GPF by testing is_huge_zero_pmd once only	2014-01-25 08:27:12 -08:00
hugetlb_cgroup.c
hugetlb.c	mm: fix process accidentally killed by mce because of huge page migration	2014-02-20 11:06:12 -08:00
hwpoison-inject.c
init-mm.c
internal.h
interval_tree.c
Kconfig
Kconfig.debug
kmemcheck.c
kmemleak-test.c
kmemleak.c
ksm.c
maccess.c
madvise.c
Makefile
memblock.c
memcontrol.c	memcg: fix memcg_size() calculation	2014-01-09 12:24:24 -08:00
memory_hotplug.c	mm/memory_hotplug.c: fix printk format warnings	2013-05-24 16:22:52 -07:00
memory-failure.c	mm/memory-failure.c: fix memory leak in successful soft offlining	2014-02-20 11:06:12 -08:00
memory.c	mm: numa: Sanitize task_numa_fault() callsites	2013-11-13 12:05:34 +09:00
mempolicy.c	mm/mempolicy.c: fix mempolicy printing in numa_maps	2014-02-06 11:08:12 -08:00
mempool.c
migrate.c	mm: numa: avoid unnecessary work on the failure path	2014-01-09 12:24:23 -08:00
mincore.c
mlock.c
mm_init.c
mmap.c	mm: ensure get_unmapped_area() returns higher address than mmap_min_addr	2013-12-04 10:56:39 -08:00
mmu_context.c
mmu_notifier.c	mm: mmu_notifier: re-fix freed page still mapped in secondary MMU	2013-05-24 16:22:51 -07:00
mmzone.c
mprotect.c	mm: fix TLB flush race between migration, and change_protection_range	2014-01-09 12:24:23 -08:00
mremap.c
msync.c
nobootmem.c
nommu.c
oom_kill.c	mm, oom: base root bonus on current usage	2014-02-13 13:48:02 -08:00
page_alloc.c	mm/memory-hotplug: fix lowmem count overflow when offline pages	2013-07-21 18:21:36 -07:00
page_cgroup.c
page_io.c
page_isolation.c
page-writeback.c	mm: __set_page_dirty_nobuffers() uses spin_lock_irqsave() instead of spin_lock_irq()	2014-02-20 11:06:11 -08:00
pagewalk.c	mm/pagewalk.c: fix walk_page_range() access of wrong PTEs	2013-11-13 12:05:34 +09:00
percpu-km.c
percpu-vm.c
percpu.c
pgtable-generic.c	mm: fix TLB flush race between migration, and change_protection_range	2014-01-09 12:24:23 -08:00
process_vm_access.c
quicklist.c
readahead.c
rmap.c	mm/hugetlb: check for pte NULL pointer in __page_check_address()	2014-01-09 12:24:23 -08:00
shmem.c	cope with potentially long ->d_dname() output for shmem/hugetlb	2013-10-18 07:45:45 -07:00
slab_common.c	slab: prevent warnings when allocating with __GFP_NOWARN	2013-06-13 10:01:58 +03:00
slab.c	slab: fix init_lock_keys	2013-07-21 18:21:26 -07:00
slab.h	memcg: check that kmem_cache has memcg_params before accessing it	2013-09-07 22:09:58 -07:00
slob.c
slub.c	slub: Fix calculation of cpu slabs	2014-02-13 13:48:00 -08:00
sparse-vmemmap.c
sparse.c
swap_state.c	swap: avoid read_swap_cache_async() race to deadlock while waiting on discard I/O completion	2013-06-12 16:29:45 -07:00
swap.c	mm: hugetlbfs: fix hugetlbfs optimization	2014-02-06 11:08:12 -08:00
swapfile.c	frontswap: fix incorrect zeroing and allocation size for frontswap_map	2013-06-12 16:29:46 -07:00
truncate.c
util.c
vmalloc.c	mm/vmalloc.c: fix an overflow bug in alloc_vmap_area()	2013-11-13 12:05:34 +09:00
vmpressure.c
vmscan.c	mm/page-writeback.c: do not count anon pages as dirtyable memory	2014-02-13 13:48:00 -08:00
vmstat.c	mm: numa: return the number of base pages altered by protection changes	2013-12-08 07:29:27 -08:00