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mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-26 22:24:09 +08:00
linux-next/mm
Vishal Verma fa6d9ec790 mm/memory_hotplug: refrain from adding memory into an impossible node
A misbehaving qemu created a situation where the ACPI SRAT table
advertised one fewer proximity domains than intended.  The NFIT table did
describe all the expected proximity domains.  This caused the device dax
driver to assign an impossible target_node to the device, and when
hotplugged as system memory, this would fail with the following signature:

   BUG: kernel NULL pointer dereference, address: 0000000000000088
   #PF: supervisor read access in kernel mode
   #PF: error_code(0x0000) - not-present page
   PGD 80000001767d4067 P4D 80000001767d4067 PUD 10e0c4067 PMD 0
   Oops: 0000 [#1] SMP PTI
   CPU: 4 PID: 22737 Comm: kswapd3 Tainted: G           O      5.6.0-rc5 #9
   Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014
   RIP: 0010:prepare_kswapd_sleep+0x7c/0xc0
   Code: 89 df e8 87 fd ff ff 89 c2 31 c0 84 d2 74 e6 0f 1f 44 00 00 48 8b 05 fb af 7a 01 48 63 93 88 1d 01 00 48 8b 84 d0 20 0f 00 00 <48> 3b 98 88 00 00 00 75 28 f0 80 a0 80 00 00 00 fe f0 80 a3 38 20
   RSP: 0018:ffffc900017a3e78 EFLAGS: 00010202
   RAX: 0000000000000000 RBX: ffff8881209e0000 RCX: 0000000000000000
   RDX: 0000000000000003 RSI: 0000000000000000 RDI: ffff8881209e0e80
   RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000008000
   R10: 0000000000000000 R11: 0000000000000003 R12: 0000000000000003
   R13: 0000000000000003 R14: 0000000000000000 R15: ffffc900017a3ec8
   FS:  0000000000000000(0000) GS:ffff888318c00000(0000) knlGS:0000000000000000
   CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
   CR2: 0000000000000088 CR3: 0000000120b50002 CR4: 00000000001606e0
   Call Trace:
    kswapd+0x103/0x520
    kthread+0x120/0x140
    ret_from_fork+0x3a/0x50

Add a check in the add_memory path to fail if the node to which we are
adding memory is in the node_possible_map

Signed-off-by: Vishal Verma <vishal.l.verma@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: David Hildenbrand <david@redhat.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Link: http://lkml.kernel.org/r/20200416225438.15208-1-vishal.l.verma@intel.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-06-04 19:06:23 -07:00
..
kasan mm: remove __ARCH_HAS_5LEVEL_HACK and include/asm-generic/5level-fixup.h 2020-06-04 19:06:21 -07:00
backing-dev.c bdi: remove the name field in struct backing_dev_info 2020-05-09 16:15:13 -06:00
balloon_compaction.c mm/balloon_compaction: suppress allocation warnings 2019-09-04 07:42:01 -04:00
cleancache.c Driver Core and debugfs changes for 5.3-rc1 2019-07-12 12:24:03 -07:00
cma_debug.c mm/cma_debug.c: use DEFINE_DEBUGFS_ATTRIBUTE to define debugfs fops 2019-12-01 12:59:09 -08:00
cma.c mm: cma: NUMA node interface 2020-04-10 15:36:21 -07:00
cma.h
compaction.c Merge branch 'akpm' (patches from Andrew) 2020-06-03 20:24:15 -07:00
debug_page_ref.c
debug_vm_pgtable.c mm/debug: add tests validating architecture page table helpers 2020-06-04 19:06:21 -07:00
debug.c mm, dump_page(): do not crash with invalid mapping pointer 2020-06-02 10:59:06 -07:00
dmapool.c mm/dmapool.c: micro-optimisation remove unnecessary branch 2020-04-07 10:43:42 -07:00
early_ioremap.c mm/early_ioremap.c: use %pa to print resource_size_t variables 2020-01-31 10:30:38 -08:00
fadvise.c mm: return void from various readahead functions 2020-06-02 10:59:06 -07:00
failslab.c mm/failslab.c: by default, do not fail allocations with direct reclaim only 2019-07-12 11:05:43 -07:00
filemap.c mm: memcontrol: delete unused lrucare handling 2020-06-03 20:09:48 -07:00
frame_vector.c mm: untag user pointers in get_vaddr_frames 2019-09-25 17:51:41 -07:00
frontswap.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 482 2019-06-19 17:09:52 +02:00
gup_benchmark.c mm/gup_benchmark: support pin_user_pages() and related calls 2020-04-02 09:35:27 -07:00
gup.c mm, mempolicy: fix up gup usage in lookup_node 2020-06-03 20:09:49 -07:00
highmem.c mm, x86/mm: Untangle address space layout definitions from basic pgtable type definitions 2019-12-10 10:12:55 +01:00
hmm.c mm/hmm: remove the customizable pfn format from hmm_range_fault 2020-05-11 10:47:29 -03:00
huge_memory.c Merge branch 'akpm' (patches from Andrew) 2020-06-03 20:24:15 -07:00
hugetlb_cgroup.c mm: use fallthrough; 2020-04-07 10:43:41 -07:00
hugetlb.c Merge branch 'akpm' (patches from Andrew) 2020-06-03 20:24:15 -07:00
hwpoison-inject.c mm/hwpoison-inject: use DEFINE_DEBUGFS_ATTRIBUTE to define debugfs fops 2019-12-01 12:59:09 -08:00
init-mm.c mm/init-mm.c: include <linux/mman.h> for vm_committed_as_batch 2019-10-19 06:32:32 -04:00
internal.h mm/vmscan.c: change prototype for shrink_page_list 2020-06-03 20:09:47 -07:00
interval_tree.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 248 2019-06-19 17:09:08 +02:00
Kconfig mm: parallelize deferred_init_memmap() 2020-06-03 20:09:45 -07:00
Kconfig.debug mm: add DEBUG_WX support 2020-06-03 20:09:49 -07:00
khugepaged.c mm: fold and remove lru_cache_add_anon() and lru_cache_add_file() 2020-06-03 20:09:48 -07:00
kmemleak-test.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 333 2019-06-05 17:37:06 +02:00
kmemleak.c mm/kmemleak.c: use address-of operator on section symbols 2020-04-02 09:35:26 -07:00
ksm.c mm/ksm: fix NULL pointer dereference when KSM zero page is enabled 2020-04-21 11:11:55 -07:00
list_lru.c mm: use fallthrough; 2020-04-07 10:43:41 -07:00
maccess.c uaccess: Add strict non-pagefault kernel-space read function 2019-11-02 12:39:12 -07:00
madvise.c mm: check that mm is still valid in madvise() 2020-04-24 13:28:03 -07:00
Makefile mm/debug: add tests validating architecture page table helpers 2020-06-04 19:06:21 -07:00
mapping_dirty_helpers.c mm/mapping_dirty_helpers: update huge page-table entry callbacks 2020-04-02 09:35:29 -07:00
memblock.c mm: remove CONFIG_HAVE_MEMBLOCK_NODE_MAP option 2020-06-03 20:09:43 -07:00
memcontrol.c mm: base LRU balancing on an explicit cost model 2020-06-03 20:09:48 -07:00
memfd.c mm: page cache: store only head pages in i_pages 2019-09-24 15:54:08 -07:00
memory_hotplug.c mm/memory_hotplug: refrain from adding memory into an impossible node 2020-06-04 19:06:23 -07:00
memory-failure.c ACPI updates for 5.8-rc1 2020-06-02 13:25:52 -07:00
memory.c mm: remove __ARCH_HAS_5LEVEL_HACK and include/asm-generic/5level-fixup.h 2020-06-04 19:06:21 -07:00
mempolicy.c mm, mempolicy: fix up gup usage in lookup_node 2020-06-03 20:09:49 -07:00
mempool.c docs/core-api/mm: fix return value descriptions in mm/ 2019-03-05 21:07:20 -08:00
memremap.c mm/memremap: set caching mode for PCI P2PDMA memory to WC 2020-04-10 15:36:21 -07:00
memtest.c
migrate.c mm: memcontrol: delete unused lrucare handling 2020-06-03 20:09:48 -07:00
mincore.c mm: pagewalk: add 'depth' parameter to pte_hole 2020-02-04 03:05:25 +00:00
mlock.c mm: untag user pointers passed to memory syscalls 2019-09-25 17:51:41 -07:00
mm_init.c mm/mm_init.c: report kasan-tag information stored in page->flags 2020-06-02 10:59:12 -07:00
mmap.c mm/vma: introduce VM_ACCESS_FLAGS 2020-04-10 15:36:21 -07:00
mmu_context.c
mmu_gather.c asm-generic/tlb: provide MMU_GATHER_TABLE_FREE 2020-02-04 03:05:26 +00:00
mmu_notifier.c mm/mmu_notifier: silence PROVE_RCU_LIST warnings 2020-03-21 18:56:06 -07:00
mmzone.c
mprotect.c mm/vma: introduce VM_ACCESS_FLAGS 2020-04-10 15:36:21 -07:00
mremap.c userfaultfd: fix remap event with MREMAP_DONTUNMAP 2020-05-14 10:00:35 -07:00
msync.c mm: untag user pointers passed to memory syscalls 2019-09-25 17:51:41 -07:00
nommu.c mm: remove vmalloc_sync_(un)mappings() 2020-06-02 10:59:12 -07:00
oom_kill.c mm/page_alloc: integrate classzone_idx and high_zoneidx 2020-06-03 20:09:44 -07:00
page_alloc.c Merge branch 'akpm' (patches from Andrew) 2020-06-03 20:24:15 -07:00
page_counter.c mm, memcg: prevent memory.min load/store tearing 2020-04-02 09:35:29 -07:00
page_ext.c mm/page_ext.c: drop pfn_present() check when onlining 2020-04-07 10:43:40 -07:00
page_idle.c mm/page_idle.c: fix oops because end_pfn is larger than max_pfn 2019-06-29 16:43:45 +08:00
page_io.c fs: Enable bmap() function to properly return errors 2020-02-03 08:05:37 -05:00
page_isolation.c mm: add function __putback_isolated_page 2020-04-07 10:43:38 -07:00
page_owner.c mm: rename gfpflags_to_migratetype to gfp_migratetype for same convention 2020-06-03 20:09:45 -07:00
page_poison.c mm/page_poison.c: fix a typo in a comment 2019-09-24 15:54:08 -07:00
page_reporting.c mm/page_reporting: add budget limit on how many pages can be reported per pass 2020-04-07 10:43:39 -07:00
page_reporting.h mm: introduce Reported pages 2020-04-07 10:43:38 -07:00
page_vma_mapped.c mm/page_vma_mapped.c: explicitly compare pfn for normal, hugetlbfs and THP page 2020-01-31 10:30:38 -08:00
page-writeback.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 2020-06-03 16:27:18 -07:00
pagewalk.c x86: mm: avoid allocating struct mm_struct on the stack 2020-02-04 03:05:25 +00:00
percpu-internal.h percpu: convert chunk hints to be based on pcpu_block_md 2019-03-13 12:25:31 -07:00
percpu-km.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 428 2019-06-05 17:37:16 +02:00
percpu-stats.c percpu: update copyright emails to dennis@kernel.org 2020-04-01 10:09:12 -07:00
percpu-vm.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 428 2019-06-05 17:37:16 +02:00
percpu.c mm: remove the pgprot argument to __vmalloc 2020-06-02 10:59:11 -07:00
pgtable-generic.c mm/thp: rename pmd_mknotpresent() as pmd_mkinvalid() 2020-06-03 20:09:49 -07:00
process_vm_access.c mm: docs: Fix a comment in process_vm_rw_core 2020-03-25 10:04:01 -05:00
ptdump.c x86: mm: ptdump: calculate effective permissions correctly 2020-06-02 10:59:09 -07:00
readahead.c mm: use memalloc_nofs_save in readahead path 2020-06-02 10:59:07 -07:00
rmap.c mm: memcontrol: switch to native NR_ANON_THPS counter 2020-06-03 20:09:47 -07:00
rodata_test.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441 2019-06-05 17:37:17 +02:00
shmem.c mm: fold and remove lru_cache_add_anon() and lru_cache_add_file() 2020-06-03 20:09:48 -07:00
shuffle.c mm: adjust shuffle code to allow for future coalescing 2020-04-07 10:43:38 -07:00
shuffle.h mm: adjust shuffle code to allow for future coalescing 2020-04-07 10:43:38 -07:00
slab_common.c usercopy: mark dma-kmalloc caches as usercopy caches 2020-06-02 10:59:06 -07:00
slab.c mm/page_alloc: integrate classzone_idx and high_zoneidx 2020-06-03 20:09:44 -07:00
slab.h mm: kmem: rename (__)memcg_kmem_(un)charge_memcg() to __memcg_kmem_(un)charge() 2020-04-02 09:35:28 -07:00
slob.c mm/sl[uo]b: export __kmalloc_track(_node)_caller 2020-03-26 14:45:51 +01:00
slub.c mm/page_alloc: integrate classzone_idx and high_zoneidx 2020-06-03 20:09:44 -07:00
sparse-vmemmap.c mm/sparsemem: convert kmalloc_section_memmap() to populate_section_memmap() 2019-07-18 17:08:07 -07:00
sparse.c mm/sparse.c: move subsection_map related functions together 2020-04-07 10:43:40 -07:00
swap_cgroup.c mm: memcontrol: make swap tracking an integral part of memory control 2020-06-03 20:09:48 -07:00
swap_slots.c mm/swap_slots.c: assign|reset cache slot by value directly 2020-04-02 09:35:27 -07:00
swap_state.c mm: vmscan: reclaim writepage is IO cost 2020-06-03 20:09:49 -07:00
swap.c mm: swap: memcg: fix memcg stats for huge pages 2020-06-03 20:09:49 -07:00
swapfile.c mm: memcontrol: charge swapin pages on instantiation 2020-06-03 20:09:48 -07:00
truncate.c mm/thp: allow dropping THP from page cache 2019-10-19 06:32:33 -04:00
usercopy.c usercopy: Avoid HIGHMEM pfn warning 2019-09-17 15:20:17 -07:00
userfaultfd.c mm: memcontrol: delete unused lrucare handling 2020-06-03 20:09:48 -07:00
util.c mm: add kvfree_sensitive() for freeing sensitive data objects 2020-06-04 19:06:22 -07:00
vmacache.c mm: get rid of vmacache_flush_all() entirely 2018-09-13 15:18:04 -10:00
vmalloc.c mm/vmalloc: fix a typo in comment 2020-06-04 19:06:21 -07:00
vmpressure.c mm: vmpressure: use mem_cgroup_is_root API 2020-04-02 09:35:31 -07:00
vmscan.c mm: vmscan: limit the range of LRU type balancing 2020-06-03 20:09:49 -07:00
vmstat.c Merge branch 'akpm' (patches from Andrew) 2020-06-03 20:24:15 -07:00
workingset.c mm: vmscan: reclaim writepage is IO cost 2020-06-03 20:09:49 -07:00
z3fold.c mm/z3fold: silence kmemleak false positives of slots 2020-05-28 11:35:40 -07:00
zbud.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
zpool.c zpool: add malloc_support_movable to zpool_driver 2019-09-24 15:54:12 -07:00
zsmalloc.c mm: remove map_vm_range 2020-06-02 10:59:11 -07:00
zswap.c mm/zswap: allow setting default status, compressor and allocator in Kconfig 2020-04-07 10:43:41 -07:00