yangshiguang 994b03b960 mm: slub: avoid wake up kswapd in set_track_prepare ... [ Upstream commit 850470a8413a8a78e772c4f6bd9fe81ec6bd5b0f ] set_track_prepare() can incur lock recursion. The issue is that it is called from hrtimer_start_range_ns holding the per_cpu(hrtimer_bases)[n].lock, but when enabled CONFIG_DEBUG_OBJECTS_TIMERS, may wake up kswapd in set_track_prepare, and try to hold the per_cpu(hrtimer_bases)[n].lock. Avoid deadlock caused by implicitly waking up kswapd by passing in allocation flags, which do not contain __GFP_KSWAPD_RECLAIM in the debug_objects_fill_pool() case. Inside stack depot they are processed by gfp_nested_mask(). Since ___slab_alloc() has preemption disabled, we mask out __GFP_DIRECT_RECLAIM from the flags there. The oops looks something like: BUG: spinlock recursion on CPU#3, swapper/3/0 lock: 0xffffff8a4bf29c80, .magic: dead4ead, .owner: swapper/3/0, .owner_cpu: 3 Hardware name: Qualcomm Technologies, Inc. Popsicle based on SM8850 (DT) Call trace: spin_bug+0x0 _raw_spin_lock_irqsave+0x80 hrtimer_try_to_cancel+0x94 task_contending+0x10c enqueue_dl_entity+0x2a4 dl_server_start+0x74 enqueue_task_fair+0x568 enqueue_task+0xac do_activate_task+0x14c ttwu_do_activate+0xcc try_to_wake_up+0x6c8 default_wake_function+0x20 autoremove_wake_function+0x1c __wake_up+0xac wakeup_kswapd+0x19c wake_all_kswapds+0x78 __alloc_pages_slowpath+0x1ac __alloc_pages_noprof+0x298 stack_depot_save_flags+0x6b0 stack_depot_save+0x14 set_track_prepare+0x5c ___slab_alloc+0xccc __kmalloc_cache_noprof+0x470 __set_page_owner+0x2bc post_alloc_hook[jt]+0x1b8 prep_new_page+0x28 get_page_from_freelist+0x1edc __alloc_pages_noprof+0x13c alloc_slab_page+0x244 allocate_slab+0x7c ___slab_alloc+0x8e8 kmem_cache_alloc_noprof+0x450 debug_objects_fill_pool+0x22c debug_object_activate+0x40 enqueue_hrtimer[jt]+0xdc hrtimer_start_range_ns+0x5f8 ... Signed-off-by: yangshiguang <yangshiguang@xiaomi.com> Fixes: 5cf909c553 ("mm/slub: use stackdepot to save stack trace in objects") Cc: stable@vger.kernel.org Signed-off-by: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Sasha Levin <sashal@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2025-09-09 18:54:24 +02:00
..
damon	mm/damon/vaddr: fix issue in damon_va_evenly_split_region()	2024-12-14 19:54:52 +01:00
kasan	kasan: use vmalloc_dump_obj() for vmalloc error reports	2025-08-15 12:04:49 +02:00
kfence	kfence: skip __GFP_THISNODE allocations on NUMA systems	2025-02-21 13:49:48 +01:00
kmsan	dma: kmsan: export kmsan_handle_dma() for modules	2025-03-13 12:53:15 +01:00
backing-dev.c	writeback, cgroup: fix null-ptr-deref write in bdi_split_work_to_wbs	2023-04-26 14:28:39 +02:00
balloon_compaction.c
bootmem_info.c
cma_debug.c
cma_sysfs.c
cma.c	mm/cma: drop incorrect alignment check in cma_init_reserved_mem	2024-06-16 13:41:39 +02:00
cma.h
compaction.c	mm, vmscan: prevent infinite loop for costly GFP_NOIO | __GFP_RETRY_MAYFAIL allocations	2024-04-03 15:19:42 +02:00
debug_page_ref.c
debug_vm_pgtable.c	mm/debug_vm_pgtable: clear page table entries at destroy_args()	2025-08-28 16:26:13 +02:00
debug.c	mm: remove the vma linked list	2022-09-26 19:46:26 -07:00
dmapool.c
early_ioremap.c
fadvise.c
failslab.c	mm: fix unexpected changes to {failslab|fail_page_alloc}.attr	2022-11-22 18:50:44 -08:00
filemap.c	mm: drop the assumption that VM_SHARED always implies writable	2025-08-28 16:26:12 +02:00
folio-compat.c	mm: remove try_to_free_swap()	2022-10-03 14:02:53 -07:00
frontswap.c	frontswap: don't call ->init if no ops are registered	2022-09-26 12:14:34 -07:00
gup_test.c
gup_test.h
gup.c	mm: Fix is_zero_page() usage in try_grab_page()	2025-04-25 10:44:01 +02:00
highmem.c	highmem: fix kmap_to_page() for kmap_local_page() addresses	2022-10-12 18:51:51 -07:00
hmm.c	mm/hmm: move pmd_to_hmm_pfn_flags() to the respective #ifdeffery	2025-08-15 12:05:13 +02:00
huge_memory.c	mm/huge_memory: fix dereferencing invalid pmd migration entry	2025-06-27 11:07:38 +01:00
hugetlb_cgroup.c	mm/hugetlb_cgroup: convert hugetlb_cgroup_uncharge_page() to folios	2024-05-17 11:55:52 +02:00
hugetlb_vmemmap.c	mm: hugetlb_vmemmap: fix a race between vmemmap pmd split	2023-09-19 12:27:56 +02:00
hugetlb_vmemmap.h
hugetlb.c	mm/hugetlb: fix huge_pmd_unshare() vs GUP-fast race	2025-06-27 11:07:38 +01:00
hwpoison-inject.c	mm/hwpoison: add __init/__exit annotations to module init/exit funcs	2022-10-03 14:03:05 -07:00
init-mm.c	mm: remove rb tree.	2022-09-26 19:46:16 -07:00
internal.h	mm: unconditionally close VMAs on error	2024-11-22 15:37:34 +01:00
interval_tree.c
io-mapping.c
ioremap.c
Kconfig	mm: z3fold: deprecate CONFIG_Z3FOLD	2024-10-17 15:22:05 +02:00
Kconfig.debug	mm: page_table_check: Make it dependent on EXCLUSIVE_SYSTEM_RAM	2023-06-14 11:15:29 +02:00
khugepaged.c	mm: khugepaged: fix call hpage_collapse_scan_file() for anonymous vma	2025-08-15 12:04:51 +02:00
kmemleak.c	mm/kmemleak: avoid deadlock by moving pr_warn() outside kmemleak_lock	2025-08-28 16:26:04 +02:00
ksm.c	mm/ksm: fix race with VMA iteration and mm_struct teardown	2023-03-30 12:49:29 +02:00
list_lru.c
maccess.c	mm: Fix copy_from_user_nofault().	2023-06-28 11:12:17 +02:00
madvise.c	mm: drop the assumption that VM_SHARED always implies writable	2025-08-28 16:26:12 +02:00
Makefile	mm: memcontrol: drop dead CONFIG_MEMCG_SWAP config symbol	2022-10-03 14:03:36 -07:00
mapping_dirty_helpers.c
memblock.c	x86/numa: Fix the address overlap check in numa_fill_memblks()	2024-03-01 13:26:36 +01:00
memcontrol.c	memcg: always call cond_resched() after fn()	2025-06-04 14:40:21 +02:00
memfd.c	mm: reinstate ability to map write-sealed memfd mappings read-only	2025-08-28 16:26:12 +02:00
memory_hotplug.c	hwpoison, memory_hotplug: lock folio before unmap hwpoisoned folio	2025-05-22 14:10:09 +02:00
memory-failure.c	mm/memory-failure: fix infinite UCE for VM_PFNMAP pfn	2025-08-28 16:26:16 +02:00
memory-tiers.c	memory tier: release the new_memtier in find_create_memory_tier()	2023-03-10 09:34:27 +01:00
memory.c	mm: fix apply_to_existing_page_range()	2025-04-25 10:44:04 +02:00
mempolicy.c	mm/numa_balancing: teach mpol_to_str about the balancing mode	2024-08-03 08:49:40 +02:00
mempool.c
memremap.c	mm/memremap.c: map FS_DAX device memory as decrypted	2022-11-08 15:57:23 -08:00
memtest.c	memtest: use {READ,WRITE}_ONCE in memory scanning	2024-04-03 15:19:36 +02:00
migrate_device.c	mm/migrate_device: return number of migrating pages in args->cpages	2022-11-22 18:50:43 -08:00
migrate.c	mm/vmscan: fix a bug calling wakeup_kswapd() with a wrong zone index	2025-05-22 14:10:08 +02:00
mincore.c	mm: teach mincore_hugetlb about pte markers	2023-03-22 13:34:03 +01:00
mlock.c	mm/mlock: drop dead code in count_mm_mlocked_page_nr()	2022-09-26 19:46:27 -07:00
mm_init.c	mm: multi-gen LRU: groundwork	2022-09-26 19:46:09 -07:00
mm_slot.h	mm: introduce common struct mm_slot	2022-10-03 14:02:43 -07:00
mmap_lock.c	mm: mmap_lock: replace get_memcg_path_buf() with on-stack buffer	2024-08-03 08:49:30 +02:00
mmap.c	mm: reinstate ability to map write-sealed memfd mappings read-only	2025-08-28 16:26:12 +02:00
mmu_gather.c	mm/khugepaged: fix GUP-fast interaction by sending IPI	2022-11-30 14:49:42 -08:00
mmu_notifier.c
mmzone.c	mm: multi-gen LRU: groundwork	2022-09-26 19:46:09 -07:00
mprotect.c	mm/uffd: fix warning without PTE_MARKER_UFFD_WP compiled in	2022-10-12 15:56:46 -07:00
mremap.c	mm, mremap: fix mremap() expanding for vma's with vm_ops->close()	2023-02-09 11:28:22 +01:00
msync.c	mm/msync: use vma_find() instead of vma linked list	2022-09-26 19:46:25 -07:00
nommu.c	mm: add nommu variant of vm_insert_pages()	2025-03-28 21:58:53 +01:00
oom_kill.c	memcg: fix soft lockup in the OOM process	2025-03-07 16:56:29 +01:00
page_alloc.c	mm/page_alloc.c: avoid infinite retries caused by cpuset race	2025-06-04 14:40:21 +02:00
page_counter.c
page_ext.c	mm/page_exit: fix kernel doc warning in page_ext_put()	2022-11-22 18:50:41 -08:00
page_idle.c
page_io.c	use less confusing names for iov_iter direction initializers	2023-02-09 11:28:04 +01:00
page_isolation.c	mm/page_isolation: fix clang deadcode warning	2022-10-28 13:37:22 -07:00
page_owner.c	mm: reuse pageblock_start/end_pfn() macro	2022-10-03 14:03:03 -07:00
page_poison.c
page_reporting.c
page_reporting.h
page_table_check.c	mm/page_table_check: fix crash on ZONE_DEVICE	2024-06-27 13:46:22 +02:00
page_vma_mapped.c	mm/swap: add swp_offset_pfn() to fetch PFN from swap entry	2022-09-26 19:46:05 -07:00
page-writeback.c	mm: fix ratelimit_pages update error in dirty_ratio_handler()	2025-06-27 11:07:30 +01:00
pagewalk.c	- Yu Zhao's Multi-Gen LRU patches are here. They've been under test in	2022-10-10 17:53:04 -07:00
percpu-internal.h
percpu-km.c
percpu-stats.c
percpu-vm.c
percpu.c
pgalloc-track.h
pgtable-generic.c	mm: fix race between __split_huge_pmd_locked() and GUP-fast	2024-06-16 13:41:38 +02:00
process_vm_access.c	use less confusing names for iov_iter direction initializers	2023-02-09 11:28:04 +01:00
ptdump.c	mm/ptdump: take the memory hotplug lock inside ptdump_walk_pgd()	2025-08-28 16:26:11 +02:00
readahead.c	mm/readahead: fix large folio support in async readahead	2025-01-09 13:30:06 +01:00
rmap.c	mm/rmap: reject hugetlb folios in folio_make_device_exclusive()	2025-04-25 10:43:42 +02:00
rodata_test.c	mm/rodata_test: use PAGE_ALIGNED() helper	2022-10-03 14:03:05 -07:00
secretmem.c	fs: export anon_inode_make_secure_inode() and fix secretmem LSM bypass	2025-07-17 18:32:10 +02:00
shmem.c	mm: update memfd seal write check to include F_SEAL_WRITE	2025-08-28 16:26:12 +02:00
shrinker_debug.c	mm: shrinkers: fix deadlock in shrinker debugfs	2023-02-22 12:59:46 +01:00
shuffle.c	mm/shuffle: convert module_param_call to module_param_cb	2022-10-03 14:03:07 -07:00
shuffle.h
slab_common.c	mm: krealloc: Fix MTE false alarm in __do_krealloc	2024-11-17 15:07:22 +01:00
slab.c	mm/slab: Fix undefined init_cache_node_node() for NUMA and !SMP	2023-03-30 12:49:23 +02:00
slab.h	- Yu Zhao's Multi-Gen LRU patches are here. They've been under test in	2022-10-10 17:53:04 -07:00
slob.c	Merge branch 'slab/for-6.1/kmalloc_size_roundup' into slab/for-next	2022-09-29 11:30:55 +02:00
slub.c	mm: slub: avoid wake up kswapd in set_track_prepare	2025-09-09 18:54:24 +02:00
sparse-vmemmap.c
sparse.c	x86/kaslr: Expose and use the end of the physical memory address space	2024-09-12 11:10:17 +02:00
swap_cgroup.c	mm: memcontrol: don't allocate cgroup swap arrays when memcg is disabled	2022-10-03 14:03:36 -07:00
swap_slots.c	mm/swap: convert put_swap_page() to put_swap_folio()	2022-10-03 14:02:46 -07:00
swap_state.c	swap_state: convert free_swap_cache() to use a folio	2022-10-03 14:02:51 -07:00
swap.c	mm: page_alloc: move mlocked flag clearance into free_pages_prepare()	2024-12-14 19:54:31 +01:00
swap.h	mm/swap: fix race when skipping swapcache	2024-03-01 13:26:32 +01:00
swapfile.c	mm/swapfile: skip HugeTLB pages for unuse_vma	2024-10-22 15:56:43 +02:00
truncate.c	mm: Fix missing folio invalidation calls during truncation	2024-09-04 13:25:00 +02:00
usercopy.c	mm: Fix copy_from_user_nofault().	2023-06-28 11:12:17 +02:00
userfaultfd.c	userfaultfd: fix mmap_changing checking in mfill_atomic_hugetlb	2024-02-23 09:12:51 +01:00
util.c	mm: unconditionally close VMAs on error	2024-11-22 15:37:34 +01:00
vmalloc.c	mm/vmalloc: leave lazy MMU mode on PTE mapping error	2025-07-24 08:51:55 +02:00
vmpressure.c	net-memcg: Fix scope of sockmem pressure indicators	2023-09-13 09:42:33 +02:00
vmscan.c	mm: add missing release barrier on PGDAT_RECLAIM_LOCKED unlock	2025-04-25 10:43:42 +02:00
vmstat.c	vmstat: call fold_vm_zone_numa_events() before show per zone NUMA event	2024-12-14 19:54:13 +01:00
workingset.c	mm/mglru: fix underprotected page cache	2023-12-20 17:00:26 +01:00
z3fold.c
zbud.c
zpool.c
zsmalloc.c	mm/zsmalloc: do not pass __GFP_MOVABLE if CONFIG_COMPACTION=n	2025-08-15 12:04:50 +02:00
zswap.c	mm: zswap: fix missing folio cleanup in writeback race path	2024-03-01 13:26:39 +01:00