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Kirill A. Shutemov 790d30578f mm/page_alloc: fix memory accept before watermarks gets initialized 
commit 800f1059c9 upstream.

Watermarks are initialized during the postcore initcall.  Until then, all
watermarks are set to zero.  This causes cond_accept_memory() to
incorrectly skip memory acceptance because a watermark of 0 is always met.

This can lead to a premature OOM on boot.

To ensure progress, accept one MAX_ORDER page if the watermark is zero.

Link: https://lkml.kernel.org/r/20250310082855.2587122-1-kirill.shutemov@linux.intel.com
Fixes: dcdfdd40fa ("mm: Add support for unaccepted memory")
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Tested-by: Farrah Chen <farrah.chen@intel.com>
Reported-by: Farrah Chen <farrah.chen@intel.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Reviewed-by: Pankaj Gupta <pankaj.gupta@amd.com>
Cc: Ashish Kalra <ashish.kalra@amd.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: "Edgecombe, Rick P" <rick.p.edgecombe@intel.com>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: "Mike Rapoport (IBM)" <rppt@kernel.org>
Cc: Thomas Lendacky <thomas.lendacky@amd.com>
Cc: <stable@vger.kernel.org>	[6.5+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-04-07 10:06:36 +02:00
..
damon
mm/damon/vaddr: fix issue in damon_va_evenly_split_region()
2024-12-14 20:00:21 +01:00
kasan
kasan: make report_lock a raw spinlock
2024-12-14 19:59:57 +01:00
kfence
kfence: skip __GFP_THISNODE allocations on NUMA systems
2025-02-17 09:40:32 +01:00
kmsan
dma: kmsan: export kmsan_handle_dma() for modules
2025-03-13 12:58:27 +01:00
backing-dev.c
…
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 13:47:42 +02:00
cma.h
…
compaction.c
NFS: fix nfs_release_folio() to not deadlock via kcompactd writeback
2025-03-13 12:58:27 +01:00
debug_page_alloc.c
…
debug_page_ref.c
…
debug_vm_pgtable.c
mm/debug_vm_pgtable: drop RANDOM_ORVALUE trick
2024-08-19 06:04:31 +02:00
debug.c
…
dmapool_test.c
…
dmapool.c
…
early_ioremap.c
…
fadvise.c
…
fail_page_alloc.c
…
failslab.c
…
filemap.c
mm: fix error handling in __filemap_get_folio() with FGP_NOWAIT
2025-03-28 21:59:55 +01:00
folio-compat.c
…
gup_test.c
…
gup_test.h
…
gup.c
mm: gup: fix infinite loop within __get_longterm_locked
2025-02-21 13:57:26 +01:00
highmem.c
…
hmm.c
…
huge_memory.c
mm/thp: fix deferred split unqueue naming and locking
2024-11-17 15:08:59 +01:00
hugetlb_cgroup.c
…
hugetlb_vmemmap.c
…
hugetlb_vmemmap.h
…
hugetlb.c
mm: hugetlb: Add huge page size param to huge_ptep_get_and_clear()
2025-03-13 12:58:38 +01:00
hwpoison-inject.c
…
init-mm.c
…
internal.h
Rename .data.once to .data..once to fix resetting WARN*_ONCE
2024-12-09 10:32:59 +01:00
interval_tree.c
…
io-mapping.c
…
ioremap.c
…
Kconfig
mm: z3fold: deprecate CONFIG_Z3FOLD
2024-10-10 11:58:02 +02:00
Kconfig.debug
…
khugepaged.c
mm: khugepaged: fix the arguments order in khugepaged_collapse_file trace point
2024-11-01 01:58:26 +01:00
kmemleak.c
mm: kmemleak: fix upper boundary check for physical address objects
2025-02-17 09:40:35 +01:00
ksm.c
mm/ksm: fix ksm_zero_pages accounting
2024-06-16 13:47:41 +02:00
list_lru.c
…
maccess.c
…
madvise.c
mm,madvise,hugetlb: check for 0-length range after end address adjustment
2025-02-27 04:10:52 -08:00
Makefile
…
mapping_dirty_helpers.c
…
memblock.c
memblock: use numa_valid_node() helper to check for invalid node ID
2025-01-17 13:36:09 +01:00
memcontrol.c
memcg: fix soft lockup in the OOM process
2025-02-27 04:10:45 -08:00
memfd.c
…
memory_hotplug.c
x86/kaslr: Expose and use the end of the physical memory address space
2024-09-12 11:11:25 +02:00
memory-failure.c
mm/memory-failure: use raw_spinlock_t in struct memory_failure_cpu
2024-08-29 17:33:15 +02:00
memory-tiers.c
…
memory.c
mm: don't skip arch_sync_kernel_mappings() in error paths
2025-03-13 12:58:28 +01:00
mempolicy.c
mm/mempolicy: fix migrate_to_node() assuming there is at least one VMA in a MM
2024-12-14 20:00:18 +01:00
mempool.c
…
memremap.c
…
memtest.c
memtest: use {READ,WRITE}_ONCE in memory scanning
2024-04-03 15:28:33 +02:00
migrate_device.c
…
migrate.c
mm/migrate: fix shmem xarray update during migration
2025-03-28 21:59:55 +01:00
mincore.c
…
mlock.c
…
mm_init.c
…
mm_slot.h
…
mmap_lock.c
mm: mmap_lock: replace get_memcg_path_buf() with on-stack buffer
2024-08-03 08:54:12 +02:00
mmap.c
mm: split critical region in remap_file_pages() and invoke LSMs in between
2025-03-22 12:50:48 -07:00
mmu_gather.c
…
mmu_notifier.c
…
mmzone.c
…
mprotect.c
mm: refactor map_deny_write_exec()
2024-11-22 15:38:37 +01:00
mremap.c
mm/mremap: fix move_normal_pmd/retract_page_tables race
2024-10-22 15:46:21 +02:00
msync.c
…
nommu.c
mm: add nommu variant of vm_insert_pages()
2025-03-22 12:50:44 -07:00
oom_kill.c
memcg: fix soft lockup in the OOM process
2025-02-27 04:10:45 -08:00
page_alloc.c
mm/page_alloc: fix memory accept before watermarks gets initialized
2025-04-07 10:06:36 +02:00
page_counter.c
…
page_ext.c
…
page_idle.c
…
page_io.c
…
page_isolation.c
…
page_owner.c
…
page_poison.c
…
page_reporting.c
mm, treewide: introduce NR_PAGE_ORDERS
2024-05-02 16:32:41 +02:00
page_reporting.h
…
page_table_check.c
mm/page_table_check: support userfault wr-protect entries
2024-08-19 06:04:29 +02:00
page_vma_mapped.c
…
page-writeback.c
Revert "mm/writeback: fix possible divide-by-zero in wb_dirty_limits(), again"
2024-07-11 12:49:16 +02:00
pagewalk.c
…
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 13:47:40 +02:00
process_vm_access.c
…
ptdump.c
…
readahead.c
mm/readahead: fix large folio support in async readahead
2025-01-09 13:32:08 +01:00
rmap.c
…
rodata_test.c
…
secretmem.c
secretmem: disable memfd_secret() if arch cannot set direct map
2024-10-17 15:24:37 +02:00
shmem_quota.c
tmpfs: fix race on handling dquot rbtree
2024-04-03 15:28:54 +02:00
shmem.c
Revert "libfs: Add simple_offset_empty()"
2025-02-01 18:37:54 +01:00
show_mem.c
mm, treewide: introduce NR_PAGE_ORDERS
2024-05-02 16:32:41 +02:00
shrinker_debug.c
…
shuffle.c
…
shuffle.h
…
slab_common.c
mm: krealloc: Fix MTE false alarm in __do_krealloc
2024-11-17 15:08:58 +01:00
slab.c
…
slab.h
mm/slub: Avoid list corruption when removing a slab from the full list
2024-12-09 10:33:06 +01:00
slub.c
mm/slub: Avoid list corruption when removing a slab from the full list
2024-12-09 10:33:06 +01:00
sparse-vmemmap.c
…
sparse.c
x86/kaslr: Expose and use the end of the physical memory address space
2024-09-12 11:11:25 +02:00
swap_cgroup.c
…
swap_slots.c
…
swap_state.c
…
swap.c
mm: page_alloc: move mlocked flag clearance into free_pages_prepare()
2024-12-14 19:59:51 +01:00
swap.h
…
swapfile.c
mm/swapfile: skip HugeTLB pages for unuse_vma
2024-10-22 15:46:21 +02:00
truncate.c
mm: Fix missing folio invalidation calls during truncation
2024-09-04 13:28:23 +02:00
usercopy.c
…
userfaultfd.c
userfaultfd: fix checks for huge PMDs
2024-09-12 11:11:27 +02:00
util.c
mm: only enforce minimum stack gap size if it's sensible
2024-10-04 16:30:02 +02:00
vmalloc.c
mm: don't skip arch_sync_kernel_mappings() in error paths
2025-03-13 12:58:28 +01:00
vmpressure.c
…
vmscan.c
mm: vmscan: account for free pages to prevent infinite Loop in throttle_direct_reclaim()
2025-01-09 13:32:09 +01:00
vmstat.c
vmstat: call fold_vm_zone_numa_events() before show per zone NUMA event
2024-12-09 10:33:05 +01:00
workingset.c
mm: ratelimit stat flush from workingset shrinker
2024-06-16 13:47:31 +02:00
z3fold.c
…
zbud.c
…
zpool.c
…
zsmalloc.c
…
zswap.c
mm: zswap: fix missing folio cleanup in writeback race path
2024-03-01 13:35:10 +01:00