linux/mm
Yang Shi dbdaea42bb mm/memcontrol: Don't call schedule_work_on in preemption disabled context
The following trace is triggered when running ltp oom test cases:

BUG: sleeping function called from invalid context at kernel/rtmutex.c:659
in_atomic(): 1, irqs_disabled(): 0, pid: 17188, name: oom03
Preemption disabled at:[<ffffffff8112ba70>] mem_cgroup_reclaim+0x90/0xe0

CPU: 2 PID: 17188 Comm: oom03 Not tainted 3.10.10-rt3 #2
Hardware name: Intel Corporation Calpella platform/MATXM-CORE-411-B, BIOS 4.6.3 08/18/2010
ffff88007684d730 ffff880070df9b58 ffffffff8169918d ffff880070df9b70
ffffffff8106db31 ffff88007688b4a0 ffff880070df9b88 ffffffff8169d9c0
ffff88007688b4a0 ffff880070df9bc8 ffffffff81059da1 0000000170df9bb0
Call Trace:
[<ffffffff8169918d>] dump_stack+0x19/0x1b
[<ffffffff8106db31>] __might_sleep+0xf1/0x170
[<ffffffff8169d9c0>] rt_spin_lock+0x20/0x50
[<ffffffff81059da1>] queue_work_on+0x61/0x100
[<ffffffff8112b361>] drain_all_stock+0xe1/0x1c0
[<ffffffff8112ba70>] mem_cgroup_reclaim+0x90/0xe0
[<ffffffff8112beda>] __mem_cgroup_try_charge+0x41a/0xc40
[<ffffffff810f1c91>] ? release_pages+0x1b1/0x1f0
[<ffffffff8106f200>] ? sched_exec+0x40/0xb0
[<ffffffff8112cc87>] mem_cgroup_charge_common+0x37/0x70
[<ffffffff8112e2c6>] mem_cgroup_newpage_charge+0x26/0x30
[<ffffffff8110af68>] handle_pte_fault+0x618/0x840
[<ffffffff8103ecf6>] ? unpin_current_cpu+0x16/0x70
[<ffffffff81070f94>] ? migrate_enable+0xd4/0x200
[<ffffffff8110cde5>] handle_mm_fault+0x145/0x1e0
[<ffffffff810301e1>] __do_page_fault+0x1a1/0x4c0
[<ffffffff8169c9eb>] ? preempt_schedule_irq+0x4b/0x70
[<ffffffff8169e3b7>] ? retint_kernel+0x37/0x40
[<ffffffff8103053e>] do_page_fault+0xe/0x10
[<ffffffff8169e4c2>] page_fault+0x22/0x30

So, to prevent schedule_work_on from being called in preempt disabled context,
replace the pair of get/put_cpu() to get/put_cpu_light().

Cc: stable-rt@vger.kernel.org
Signed-off-by: Yang Shi <yang.shi@windriver.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
2020-10-14 00:59:12 +03:00
..
Kconfig kconfig-disable-a-few-options-rt.patch 2020-10-14 00:59:10 +03:00
Kconfig.debug mm: more intensive memory corruption debugging 2012-01-10 16:30:42 -08:00
Makefile mm: per-thread vma caching 2014-10-09 12:21:29 -07:00
backing-dev.c bdi: avoid oops on device removal 2014-04-26 17:19:05 -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: Use local_irq_save_nort 2020-10-14 00:59:12 +03:00
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/compaction: fix wrong order check in compact_finished() 2015-03-18 13:31:23 +01:00
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.c mm: get rid of radix tree gfp mask for pagecache_get_page 2015-01-29 17:40:53 -08:00
filemap_xip.c seqcount: Add lockdep functionality to seqcount/seqlock structures 2013-11-06 12:40:26 +01:00
fremap.c mm: fix bad rss-counter if remap_file_pages raced migration 2014-03-19 16:21:49 -07:00
frontswap.c mm: frontswap: invalidate expired data on a dup-store failure 2014-12-16 09:34:26 -08:00
highmem.c Some nice cleanups, and even a patch my wife did as a "live" demo for 2012-12-20 08:37:05 -08:00
huge_memory.c mm, thp: only collapse hugepages to nodes with affinity for zone_reclaim_mode 2015-01-29 17:40:52 -08:00
hugetlb.c mm/hugetlb: add migration entry check in __unmap_hugepage_range 2015-03-18 13:31:23 +01:00
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
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, compaction: properly signal and act upon lock and need_sched() contention 2014-11-21 09:23:07 -08:00
interval_tree.c mm: add CONFIG_DEBUG_VM_RB build option 2012-10-09 16:22:42 +09:00
kmemcheck.c kmemcheck: Fix build errors due to missing slab.h 2010-03-30 22:02:32 +09:00
kmemleak-test.c kmemleak: remove memset by using kzalloc 2011-01-27 18:31:51 +00:00
kmemleak.c mm: kmemleak: avoid false negatives on vmalloc'ed objects 2013-11-13 12:09:07 +09:00
ksm.c vm: add VM_FAULT_SIGSEGV handling support 2015-04-29 10:31:55 +02:00
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: madvise: fix MADV_WILLNEED on shmem swapouts 2014-11-21 09:23:06 -08:00
memblock.c memblock, memhotplug: fix wrong type in memblock_find_in_range_node(). 2014-10-05 14:52:17 -07:00
memcontrol.c mm/memcontrol: Don't call schedule_work_on in preemption disabled context 2020-10-14 00:59:12 +03:00
memory-failure.c mm: soft-offline: fix num_poisoned_pages counting on concurrent events 2015-05-17 09:53:49 -07:00
memory.c mm: Remove preempt count from pagefault disable/enable 2020-10-14 00:59:09 +03:00
memory_hotplug.c mm/memory_hotplug.c: set zone->wait_table to null after freeing it 2015-06-22 17:01:23 -07:00
mempolicy.c mm, numa: really disable NUMA balancing by default on single node machines 2015-06-06 08:19:38 -07:00
mempool.c mm/mempool.c: convert kmalloc_node(...GFP_ZERO...) to kzalloc_node(...) 2013-09-11 15:58:14 -07:00
migrate.c mm: fix direct reclaim writeback regression 2014-11-21 09:23:07 -08:00
mincore.c mm + fs: prepare for non-page entries in page cache radix trees 2014-11-21 09:23:06 -08:00
mlock.c mm: try_to_unmap_cluster() should lock_page() before mlocking 2014-05-06 07:59:35 -07:00
mm_init.c mm: bring back /sys/kernel/mm 2014-01-27 21:02:39 -08:00
mmap.c mm/mmap.c: fix arithmetic overflow in __vm_enough_memory() 2015-03-18 13:31:23 +01:00
mmu_context.c mm: remove old aio use_mm() comment 2013-05-07 18:38:27 -07:00
mmu_notifier.c mm: audit/fix non-modular users of module_init in core code 2014-01-23 16:36:52 -08:00
mmzone.c mm: numa: Change page last {nid,pid} into {cpu,pid} 2013-10-09 14:47:45 +02:00
mprotect.c mm: Use ptep/pmdp_set_numa() for updating _PAGE_NUMA bit 2014-02-17 11:19:36 +11:00
mremap.c mm, thp: close race between mremap() and split_huge_page() 2014-06-07 10:28:10 -07:00
msync.c sanitize vfs_fsync calling conventions 2010-05-21 18:31:21 -04:00
nobootmem.c mm/nobootmem: free_all_bootmem again 2014-01-23 16:36:52 -08:00
nommu.c mm/nommu.c: fix arithmetic overflow in __vm_enough_memory() 2015-03-18 13:31:23 +01:00
oom_kill.c OOM, PM: OOM killed task shouldn't escape PM suspend 2014-11-14 09:00:01 -08:00
page-writeback.c writeback: use |1 instead of +1 to protect against div by zero 2015-05-17 09:53:49 -07:00
page_alloc.c mm: page_alloc: Use local_lock_on() instead of plain spinlock 2020-10-14 00:59:12 +03:00
page_cgroup.c mm: Replace cgroup_page bit spinlock 2020-10-14 00:59:11 +03:00
page_io.c Merge branch 'for-3.14/core' of git://git.kernel.dk/linux-block 2014-01-30 11:19:05 -08:00
page_isolation.c mm: memory-hotplug: enable memory hotplug to handle hugepage 2013-09-11 15:57:48 -07:00
pagewalk.c mm: pagewalk: call pte_hole() for VM_PFNMAP during walk_page_range 2015-02-11 14:54:47 +08:00
percpu-km.c percpu: clear memory allocated with the km allocator 2010-10-02 10:28:42 +03:00
percpu-vm.c percpu: perform tlb flush after pcpu_map_pages() failure 2014-10-05 14:52:20 -07:00
percpu.c Revert "percpu: free percpu allocation info for uniprocessor system" 2014-11-14 08:59:45 -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 mm/readahead.c: inline ra_submit 2014-11-21 09:23:06 -08:00
rmap.c mm: fix anon_vma_clone() error treatment 2014-12-16 09:34:26 -08:00
shmem.c shmem: fix init_page_accessed use to stop !PageLRU bug 2015-01-29 17:40:52 -08:00
slab.c mm: optimize put_mems_allowed() usage 2014-10-09 12:21:28 -07:00
slab.h mm: Enable SLUB for RT 2020-10-14 00:59:12 +03:00
slab_common.c slab_common: fix the check for duplicate slab names 2014-07-31 12:52:55 -07:00
slob.c mm/sl[aou]b: Move kmallocXXX functions to common code 2013-09-04 20:51:33 +03:00
slub.c slub: delay ctor until the object is requested 2020-10-14 00:59:12 +03:00
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.c mm: convert swap to percpu locked 2020-10-14 00:59:12 +03:00
swap_state.c mm: page_alloc: convert hot/cold parameter and immediate callers to bool 2015-01-29 17:40:51 -08:00
swapfile.c swap: change swap_list_head to plist, add swap_avail_head 2014-10-09 12:21:28 -07:00
truncate.c mm + fs: prepare for non-page entries in page cache radix trees 2014-11-21 09:23:06 -08:00
util.c vm_is_stack: use for_each_thread() rather then buggy while_each_thread() 2014-09-05 16:34:18 -07:00
vmacache.c mm: don't pointlessly use BUG_ON() for sanity check 2014-10-09 12:21:29 -07:00
vmalloc.c vmalloc: use rcu list iterator to reduce vmap_area_lock contention 2015-01-29 17:40:52 -08:00
vmpressure.c mm/vmpressure.c: fix race in vmpressure_work_fn() 2014-12-16 09:34:26 -08:00
vmscan.c mm: move zone->pages_scanned into a vmstat counter 2015-01-29 17:40:53 -08:00
vmstat.c mm: make vmstat -rt aware 2020-10-14 00:59:12 +03:00
zbud.c mm/zbud: fix some trivial typos in comments 2013-09-11 15:57:35 -07:00
zsmalloc.c zsmalloc: add copyright 2014-01-30 16:56:55 -08:00
zswap.c mm/zswap.c: change params from hidden to ro 2014-01-23 16:36:50 -08:00