Kai Shen 2bf753e64b mm/hugetlb.c: don't put_page in lock of hugetlb_lock ... spinlock recursion happened when do LTP test: #!/bin/bash ./runltp -p -f hugetlb & ./runltp -p -f hugetlb & ./runltp -p -f hugetlb & ./runltp -p -f hugetlb & ./runltp -p -f hugetlb & The dtor returned by get_compound_page_dtor in __put_compound_page may be the function of free_huge_page which will lock the hugetlb_lock, so don't put_page in lock of hugetlb_lock. BUG: spinlock recursion on CPU#0, hugemmap05/1079 lock: hugetlb_lock+0x0/0x18, .magic: dead4ead, .owner: hugemmap05/1079, .owner_cpu: 0 Call trace: dump_backtrace+0x0/0x198 show_stack+0x24/0x30 dump_stack+0xa4/0xcc spin_dump+0x84/0xa8 do_raw_spin_lock+0xd0/0x108 _raw_spin_lock+0x20/0x30 free_huge_page+0x9c/0x260 __put_compound_page+0x44/0x50 __put_page+0x2c/0x60 alloc_surplus_huge_page.constprop.19+0xf0/0x140 hugetlb_acct_memory+0x104/0x378 hugetlb_reserve_pages+0xe0/0x250 hugetlbfs_file_mmap+0xc0/0x140 mmap_region+0x3e8/0x5b0 do_mmap+0x280/0x460 vm_mmap_pgoff+0xf4/0x128 ksys_mmap_pgoff+0xb4/0x258 __arm64_sys_mmap+0x34/0x48 el0_svc_common+0x78/0x130 el0_svc_handler+0x38/0x78 el0_svc+0x8/0xc Link: http://lkml.kernel.org/r/b8ade452-2d6b-0372-32c2-703644032b47@huawei.com Fixes: 9980d744a0 ("mm, hugetlb: get rid of surplus page accounting tricks") Signed-off-by: Kai Shen <shenkai8@huawei.com> Signed-off-by: Feilong Lin <linfeilong@huawei.com> Reported-by: Wang Wang <wangwang2@huawei.com> Reviewed-by: Oscar Salvador <osalvador@suse.de> Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Michal Hocko <mhocko@suse.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2019-05-14 09:47:44 -07:00
..
kasan	arm64 updates for 5.2	2019-05-06 17:54:22 -07:00
backing-dev.c	writeback: synchronize sync(2) against cgroup writeback membership switches	2019-01-22 14:39:38 -07:00
balloon_compaction.c	virtio_balloon: fix deadlock on OOM	2017-11-14 23:57:38 +02:00
cleancache.c	mm: use octal not symbolic permissions	2018-06-15 07:55:25 +09:00
cma_debug.c	mm/cma_debug.c: remove static scoped cma_debugfs_root	2019-03-05 21:07:20 -08:00
cma.c	memblock: emphasize that memblock_alloc_range() returns a physical address	2019-03-12 10:04:01 -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.c: abort search if isolation fails	2019-04-04 11:56:15 +01:00
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	mm/debug.c: fix __dump_page when mapping->host is not set	2019-03-29 10:01:37 -07:00
dmapool.c	docs/core-api/mm: fix return value descriptions in mm/	2019-03-05 21:07:20 -08:00
early_ioremap.c	mm/early_ioremap: Fix boot hang with earlyprintk=efi,keep	2017-12-11 14:54:44 +01:00
fadvise.c	vfs: implement readahead(2) using POSIX_FADV_WILLNEED	2018-08-30 20:01:32 +02:00
failslab.c	mm: no need to check return value of debugfs_create functions	2019-03-05 21:07:17 -08:00
filemap.c	filemap: add a comment about FAULT_FLAG_RETRY_NOWAIT behavior	2019-03-15 11:26:07 -07:00
frame_vector.c	mm/frame_vector.c: release a semaphore in 'get_vaddr_frames()'	2017-12-14 16:00:48 -08:00
frontswap.c	mm: use octal not symbolic permissions	2018-06-15 07:55:25 +09:00
gup_benchmark.c	mm: no need to check return value of debugfs_create functions	2019-03-05 21:07:17 -08:00
gup.c	Merge branch 'page-refs' (page ref overflow)	2019-04-14 15:09:40 -07:00
highmem.c	mm: convert totalram_pages and totalhigh_pages variables to atomic	2018-12-28 12:11:47 -08:00
hmm.c	mm/hmm: convert to use vm_fault_t	2019-03-12 10:04:00 -07:00
huge_memory.c	mm/huge_memory: fix vmf_insert_pfn_{pmd, pud}() crash, handle unaligned addresses	2019-05-14 09:47:44 -07:00
hugetlb_cgroup.c	mm: rename page_counter's count/limit into usage/max	2018-06-07 17:34:35 -07:00
hugetlb.c	mm/hugetlb.c: don't put_page in lock of hugetlb_lock	2019-05-14 09:47:44 -07:00
hwpoison-inject.c	mm/memory_failure: Remove unused trapno from memory_failure	2018-01-23 12:17:42 -06:00
init-mm.c	mm: Allocate the mm_cpumask (mm->cpu_bitmap[]) dynamically based on nr_cpu_ids	2018-07-17 09:35:30 +02:00
internal.h	mm, compaction: capture a page under direct compaction	2019-03-05 21:07:17 -08:00
interval_tree.c	mm/interval_tree.c: use vma_pages() helper	2018-01-31 17:18:37 -08:00
Kconfig	ksm: replace jhash2 with xxhash	2018-12-28 12:11:46 -08:00
Kconfig.debug	mm/page_owner: move config option to mm/Kconfig.debug	2019-03-05 21:07:18 -08:00
khugepaged.c	mm: memcontrol: expose THP events on a per-memcg basis	2019-03-05 21:07:19 -08:00
kmemleak-test.c
kmemleak.c	Merge branch 'core-stacktrace-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2019-05-06 13:11:48 -07:00
ksm.c	mm: ksm: do not block on page lock when searching stable tree	2019-03-05 21:07:19 -08:00
list_lru.c	numa: make "nr_node_ids" unsigned int	2019-03-05 21:07:19 -08:00
maccess.c	Revert "x86/fault: BUG() when uaccess helpers fault on kernel addresses"	2019-02-25 09:10:51 -08:00
madvise.c	asm-generic/tlb, arch: Provide CONFIG_HAVE_MMU_GATHER_PAGE_SIZE	2019-04-03 10:32:40 +02:00
Makefile	mm: remove nobootmem	2018-10-31 08:54:16 -07:00
memblock.c	Printk changes for 5.2	2019-05-07 09:18:12 -07:00
memcontrol.c	mm: writeback: use exact memcg dirty counts	2019-04-05 16:02:31 -10:00
memfd.c	mm/memfd: add an F_SEAL_FUTURE_WRITE seal to memfd	2019-03-05 21:07:19 -08:00
memory_hotplug.c	mm/memory_hotplug.c: drop memory device reference after find_memory_block()	2019-04-26 09:18:04 -07:00
memory-failure.c	mm: hwpoison: fix thp split handing in soft_offline_in_use_page()	2019-03-05 21:07:13 -08:00
memory.c	Printk changes for 5.2	2019-05-07 09:18:12 -07:00
mempolicy.c	mm: mempolicy: make mbind() return -EIO when MPOL_MF_STRICT is specified	2019-03-29 10:01:37 -07:00
mempool.c	docs/core-api/mm: fix return value descriptions in mm/	2019-03-05 21:07:20 -08:00
memtest.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
migrate.c	mm/migrate.c: add missing flush_dcache_page for non-mapped page migrate	2019-03-29 10:01:37 -07:00
mincore.c	Revert "Change mincore() to count "mapped" pages rather than "cached" pages"	2019-01-24 09:04:37 +13:00
mlock.c	mm: remove zone_lru_lock() function, access ->lru_lock directly	2019-03-05 21:07:21 -08:00
mm_init.c	mm: convert totalram_pages and totalhigh_pages variables to atomic	2018-12-28 12:11:47 -08:00
mmap.c	coredump: fix race condition between mmget_not_zero()/get_task_mm() and core dumping	2019-04-19 09:46:05 -07:00
mmu_context.c
mmu_gather.c	asm-generic/tlb: Remove tlb_table_flush()	2019-04-03 10:33:02 +02:00
mmu_notifier.c	mm/mmu_notifier: use structure for invalidate_range_start/end calls v2	2018-12-28 12:11:50 -08:00
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: update ptep_modify_prot_commit to take old pte value as arg	2019-03-05 21:07:18 -08:00
mremap.c	mm,mremap: bail out earlier in mremap_to under map pressure	2019-03-05 21:07:21 -08:00
msync.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
nommu.c	mm/gup: cache dev_pagemap while pinning pages	2018-10-26 16:38:15 -07:00
oom_kill.c	mm,oom: don't kill global init via memory.oom.group	2019-03-05 21:07:19 -08:00
page_alloc.c	mm/hibernation: Make hibernation handle unmapped pages	2019-04-30 12:37:57 +02:00
page_counter.c	memcg: introduce memory.min	2018-06-07 17:34:36 -07:00
page_ext.c	memblock: drop memblock_alloc_*_nopanic() variants	2019-03-12 10:04:02 -07:00
page_idle.c	mm: remove zone_lru_lock() function, access ->lru_lock directly	2019-03-05 21:07:21 -08:00
page_io.c	mm/page_io.c: fix polled swap page in	2019-01-04 13:13:48 -08:00
page_isolation.c	mm/page_isolation.c: fix a wrong flag in set_migratetype_isolate()	2019-03-29 10:01:37 -07:00
page_owner.c	mm/page_owner: Simplify stack trace handling	2019-04-29 12:37:50 +02:00
page_poison.c	page_poison: play nicely with KASAN	2019-03-05 21:07:13 -08:00
page_vma_mapped.c	mm/rmap: map_pte() was not handling private ZONE_DEVICE page properly	2018-10-31 08:54:11 -07:00
page-writeback.c	docs/core-api/mm: fix return value descriptions in mm/	2019-03-05 21:07:20 -08:00
pagewalk.c	mm: kernel-doc: add missing parameter descriptions	2018-04-05 21:36:27 -07:00
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: km: no need to consider pcpu_group_offsets[0]	2019-02-26 13:47:58 -08:00
percpu-stats.c	treewide: Use array_size() in vmalloc()	2018-06-12 16:19:22 -07:00
percpu-vm.c	percpu: allow select gfp to be passed to underlying allocators	2018-02-18 05:33:01 -08:00
percpu.c	percpu: stop printing kernel addresses	2019-03-18 10:36:36 -07:00
pgtable-generic.c	x86/mm: Page size aware flush_tlb_mm_range()	2018-10-09 16:51:11 +02:00
process_vm_access.c	mm: docs: add blank lines to silence sphinx "Unexpected indentation" errors	2018-02-06 18:32:48 -08:00
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	docs/core-api/mm: fix return value descriptions in mm/	2019-03-05 21:07:20 -08:00
rmap.c	mm: remove zone_lru_lock() function, access ->lru_lock directly	2019-03-05 21:07:21 -08:00
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	Merge branch 'work.icache' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2019-05-07 10:57:05 -07:00
slab_common.c	mm: add support for kmem caches in DMA32 zone	2019-03-29 10:01:37 -07:00
slab.c	Merge branch 'x86-irq-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2019-05-06 15:56:41 -07:00
slab.h	mm: add support for kmem caches in DMA32 zone	2019-03-29 10:01:37 -07:00
slob.c	slab: __GFP_ZERO is incompatible with a constructor	2018-06-07 17:34:34 -07:00
slub.c	mm/slub: Simplify stack trace retrieval	2019-04-29 12:37:48 +02:00
sparse-vmemmap.c	mm: remove include/linux/bootmem.h	2018-10-31 08:54:16 -07:00
sparse.c	mm/hotplug: fix offline undo_isolate_page_range()	2019-03-29 10:01:37 -07:00
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_slots.c	mm, swap, get_swap_pages: use entry_size instead of cluster in parameter	2018-08-22 10:52:44 -07:00
swap_state.c	mm: swap: add comment for swap_vma_readahead	2019-03-05 21:07:16 -08:00
swap.c	mm: remove zone_lru_lock() function, access ->lru_lock directly	2019-03-05 21:07:21 -08:00
swapfile.c	mm: swapoff: shmem_unuse() stop eviction without igrab()	2019-04-19 09:46:04 -07:00
truncate.c	docs/core-api/mm: fix return value descriptions in mm/	2019-03-05 21:07:20 -08:00
usercopy.c	mm/usercopy.c: no check page span for stack objects	2019-01-08 17:15:11 -08:00
userfaultfd.c	hugetlbfs: revert "use i_mmap_rwsem for more pmd sharing synchronization"	2019-01-08 17:15:11 -08:00
util.c	mm/util.c: fix strndup_user() comment	2019-04-05 16:02:31 -10:00
vmacache.c	mm: get rid of vmacache_flush_all() entirely	2018-09-13 15:18:04 -10:00
vmalloc.c	mm/vmalloc: Add flag for freeing of special permsissions	2019-04-30 12:37:58 +02:00
vmpressure.c	mm/vmpressure.c: convert to use match_string() helper	2018-06-07 17:34:36 -07:00
vmscan.c	Printk changes for 5.2	2019-05-07 09:18:12 -07:00
vmstat.c	mm/vmstat.c: fix /proc/vmstat format for CONFIG_DEBUG_TLBFLUSH=y CONFIG_SMP=n	2019-04-19 09:46:04 -07:00
workingset.c	mm/workingset: remove unused @mapping argument in workingset_eviction()	2019-03-05 21:07:21 -08:00
z3fold.c	z3fold: fix possible reclaim races	2018-11-18 10:15:09 -08:00
zbud.c	mm: docs: fix parameter names mismatch	2018-02-06 18:32:48 -08:00
zpool.c	mm/zpool.c: zpool_evictable: fix mismatch in parameter name and kernel-doc	2018-02-21 15:35:43 -08:00
zsmalloc.c	mm/zsmalloc.c: fix fall-through annotation	2018-10-26 16:26:35 -07:00
zswap.c	mm: convert totalram_pages and totalhigh_pages variables to atomic	2018-12-28 12:11:47 -08:00