Date:   Sun, 19 Jun 2022 16:56:02 +0200
From:   Toralf Förster <toralf.foerster@....de>
To:     linux-mm@...ck.org
Cc:     Linux Kernel <linux-kernel@...r.kernel.org>
Subject: kernel splat: 5.18.5: age allocation failure:

Got this at a hardened stable Gentoo:


mr-fox ~/linux # uname -a
Linux mr-fox 5.18.5 #7 SMP PREEMPT_DYNAMIC Thu Jun 16 14:14:17 CEST 2022
x86_64 AMD Ryzen 9 5950X 16-Core Processor AuthenticAMD GNU/Linux


Jun 18 16:37:01 mr-fox CROND[12470]: pam_unix(crond:session): session
closed for user root
Jun 18 16:37:06 mr-fox kernel: 20.p: page allocation failure: order:8,
mode:0x40dc0(GFP_KERNEL|__GFP_COMP|__GFP_ZERO),
nodemask=(null),cpuset=/,mems_allowed=0
Jun 18 16:37:06 mr-fox kernel: CPU: 6 PID: 26170 Comm: 20.p Tainted: G
               T 5.18.5 #7
Jun 18 16:37:06 mr-fox kernel: Hardware name: ASUS System Product
Name/Pro WS 565-ACE, BIOS 0502 01/15/2021
Jun 18 16:37:06 mr-fox kernel: Call Trace:
Jun 18 16:37:06 mr-fox kernel:  <TASK>
Jun 18 16:37:06 mr-fox kernel:  dump_stack_lvl+0x38/0x50
Jun 18 16:37:06 mr-fox kernel:  warn_alloc+0x146/0x170
Jun 18 16:37:06 mr-fox kernel:  ? __alloc_pages_direct_compact+0x1fd/0x2d0
Jun 18 16:37:06 mr-fox kernel:
__alloc_pages_slowpath.constprop.0+0xb80/0xbb0
Jun 18 16:37:06 mr-fox kernel:  ? mmap_region+0x28b/0x610
Jun 18 16:37:06 mr-fox kernel:  __alloc_pages+0x2a4/0x2d0
Jun 18 16:37:06 mr-fox kernel:  kmalloc_order+0x2c/0xb0
Jun 18 16:37:06 mr-fox kernel:  ioctx_alloc+0x4dd/0x7d0
Jun 18 16:37:06 mr-fox kernel:  __x64_sys_io_setup+0x32/0xc0
Jun 18 16:37:06 mr-fox kernel:  do_syscall_64+0x68/0xa0
Jun 18 16:37:06 mr-fox kernel:  entry_SYSCALL_64_after_hwframe+0x44/0xae
Jun 18 16:37:06 mr-fox kernel: RIP: 0033:0x7fa16f2b9a09
Jun 18 16:37:06 mr-fox kernel: Code: 08 44 89 e0 5b 41 5c c3 66 0f 1f 84
00 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c
8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d e7 c3 0e 00 f7
d8 64 89 01 48
Jun 18 16:37:06 mr-fox kernel: RSP: 002b:00007fff2282dca8 EFLAGS:
00000246 ORIG_RAX: 00000000000000ce
Jun 18 16:37:06 mr-fox kernel: RAX: ffffffffffffffda RBX:
0000000000000001 RCX: 00007fa16f2b9a09
Jun 18 16:37:06 mr-fox kernel: RDX: 00007fa16f2b9a09 RSI:
00007fa16f0e3010 RDI: 0000000000000001
Jun 18 16:37:06 mr-fox kernel: RBP: 00007fa16f1b46c0 R08:
0000000000000000 R09: 00007fa16f3a35e0
Jun 18 16:37:06 mr-fox kernel: R10: 0000000000000000 R11:
0000000000000246 R12: 0000000000000000
Jun 18 16:37:06 mr-fox kernel: R13: 00007fa16f0e3010 R14:
00007fa16f0e3010 R15: 00007fff2282dcf4
Jun 18 16:37:06 mr-fox kernel:  </TASK>
Jun 18 16:37:06 mr-fox kernel: Mem-Info:
Jun 18 16:37:06 mr-fox kernel: active_anon:800676 inactive_anon:4257809
isolated_anon:102\x0a active_file:14441603 inactive_file:8046961
isolated_file:0\x0a unevictable:2012 dirty:487 writeback:0\x0a
slab_reclaimable:3471538 slab_unreclaimable:882099\x0a mapped:140612
shmem:729255 pagetables:12907 bounce:0\x0a kernel_misc_reclaimable:0\x0a
free:688749 free_pcp:1641 free_cma:0
Jun 18 16:37:06 mr-fox kernel: Node 0 active_anon:3202704kB
inactive_anon:17031236kB active_file:57766412kB inactive_file:32187844kB
unevictable:8048kB isolated(anon):408kB isolated(file):0kB
mapped:562448kB dirty:1948kB writeback:0kB shmem:2917020kB shmem_thp:
0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB
kernel_stack:12448kB pagetables:51628kB all_unreclaimable? no
Jun 18 16:37:06 mr-fox kernel: Node 0 DMA free:11264kB boost:0kB min:4kB
low:16kB high:28kB reserved_highatomic:0KB active_anon:0kB
inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB
writepending:0kB present:15992kB managed:15360kB mlocked:0kB bounce:0kB
free_pcp:0kB local_pcp:0kB free_cma:0kB
Jun 18 16:37:06 mr-fox kernel: lowmem_reserve[]: 0 3166 128716 128716
Jun 18 16:37:06 mr-fox kernel: Node 0 DMA32 free:585996kB boost:0kB
min:1660kB low:4900kB high:8140kB reserved_highatomic:0KB
active_anon:8244kB inactive_anon:244840kB active_file:930524kB
inactive_file:230312kB unevictable:0kB writepending:0kB
present:3311464kB managed:3245920kB mlocked:0kB bounce:0kB free_pcp:0kB
local_pcp:0kB free_cma:0kB
Jun 18 16:37:06 mr-fox kernel: lowmem_reserve[]: 0 0 125550 125550
Jun 18 16:37:06 mr-fox kernel: Node 0 Normal free:2157736kB boost:0kB
min:65912kB low:194472kB high:323032kB reserved_highatomic:12288KB
active_anon:3194460kB inactive_anon:16786396kB active_file:56835888kB
inactive_file:31957532kB unevictable:8048kB writepending:1948kB
present:130796544kB managed:128569012kB mlocked:8048kB bounce:0kB
free_pcp:6520kB local_pcp:0kB free_cma:0kB
Jun 18 16:37:06 mr-fox kernel: lowmem_reserve[]: 0 0 0 0
Jun 18 16:37:06 mr-fox kernel: Node 0 DMA: 0*4kB 0*8kB 0*16kB 0*32kB
0*64kB 0*128kB 0*256kB 0*512kB 1*1024kB (U) 1*2048kB (M) 2*4096kB (M) =
11264kB
Jun 18 16:37:06 mr-fox kernel: Node 0 DMA32: 19341*4kB (UME) 12552*8kB
(UME) 7392*16kB (UME) 3507*32kB (UME) 1454*64kB (UME) 414*128kB (UME)
104*256kB (ME) 10*512kB (M) 0*1024kB 0*2048kB 0*4096kB = 586068kB
Jun 18 16:37:06 mr-fox kernel: Node 0 Normal: 65181*4kB (UMEH) 61080*8kB
(UMEH) 19124*16kB (UMEH) 12005*32kB (UMEH) 6511*64kB (UMEH) 2009*128kB
(UME) 173*256kB (ME) 0*512kB 0*1024kB 1*2048kB (H) 0*4096kB = 2159700kB
Jun 18 16:37:06 mr-fox kernel: Node 0 hugepages_total=0 hugepages_free=0
hugepages_surp=0 hugepages_size=1048576kB
Jun 18 16:37:06 mr-fox kernel: Node 0 hugepages_total=0 hugepages_free=0
hugepages_surp=0 hugepages_size=2048kB
Jun 18 16:37:06 mr-fox kernel: 23229218 total pagecache pages
Jun 18 16:37:06 mr-fox kernel: 9771 pages in swap cache
Jun 18 16:37:06 mr-fox kernel: Swap cache stats: add 3647493, delete
3637625, find 37193692549/37193401872
Jun 18 16:37:06 mr-fox kernel: Free swap  = 268069112kB
Jun 18 16:37:06 mr-fox kernel: Total swap = 268435448kB
Jun 18 16:37:06 mr-fox kernel: 33531000 pages RAM
Jun 18 16:37:06 mr-fox kernel: 0 pages HighMem/MovableOnly
Jun 18 16:37:06 mr-fox kernel: 573427 pages reserved
Jun 18 16:37:06 mr-fox kernel: 0 pages hwpoisoned


--
Toralf

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