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kernel panic: System is deadlocked on memory (2)

Status: upstream: reported on 2024/08/12 10:54
Subsystems: mm
[Documentation on labels]
Reported-by: syzbot+c61d6962d0b7e698439e@syzkaller.appspotmail.com
First crash: 529d, last: 4d15h
▶ ▼ Discussions (1)
Title Replies (including bot) Last reply
[syzbot] [mm?] kernel panic: System is deadlocked on memory (2) 0 (1) 2024/08/12 10:54
▶ ▼ Similar bugs (1)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream kernel panic: System is deadlocked on memory mm 2 C done 43 1986d 1984d 15/29 fixed on 2020/11/16 12:12

Sample crash report:
 snd_pcm_lib_malloc_pages+0x303/0x690 sound/core/pcm_memory.c:455
 snd_pcm_hw_params+0x7e5/0x1d30 sound/core/pcm_native.c:796
 snd_pcm_oss_change_params_locked+0x21cb/0x3e40 sound/core/oss/pcm_oss.c:965
 snd_pcm_oss_make_ready_locked sound/core/oss/pcm_oss.c:1186 [inline]
 snd_pcm_oss_sync+0x353/0xc30 sound/core/oss/pcm_oss.c:1667
 snd_pcm_oss_release+0xff/0x250 sound/core/oss/pcm_oss.c:2573
 __fput+0x44c/0xa70 fs/file_table.c:468
 task_work_run+0x1d4/0x260 kernel/task_work.c:227
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x6b5/0x2300 kernel/exit.c:966
 do_group_exit+0x21c/0x2d0 kernel/exit.c:1107
 get_signal+0x1285/0x1340 kernel/signal.c:3034
 arch_do_signal_or_restart+0xa0/0x790 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop+0x72/0x130 kernel/entry/common.c:40
 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline]
 do_syscall_64+0x2bd/0xfa0 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fba9138efc9
Code: Unable to access opcode bytes at 0x7fba9138ef9f.
RSP: 002b:00007fba9218d0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007fba915e5fa8 RCX: 00007fba9138efc9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fba915e5fa8
RBP: 00007fba915e5fa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fba915e6038 R14: 00007fff71275670 R15: 00007fff71275758
 </TASK>
Mem-Info:
active_anon:1575 inactive_anon:0 isolated_anon:0
 active_file:842 inactive_file:38552 isolated_file:0
 unevictable:1768 dirty:0 writeback:0
 slab_reclaimable:6281 slab_unreclaimable:30249
 mapped:1093 shmem:2185 pagetables:300
 sec_pagetables:290 bounce:0
 kernel_misc_reclaimable:0
 free:43323 free_pcp:575 free_cma:0
Node 0 active_anon:8kB inactive_anon:0kB active_file:0kB inactive_file:16kB unevictable:1052kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:1052kB shmem_thp:0kB shmem_pmdmapped:0kB anon_thp:0kB kernel_stack:3056kB pagetables:516kB sec_pagetables:1100kB all_unreclaimable? yes Balloon:0kB
Node 0 DMA free:1256kB boost:0kB min:760kB low:948kB high:1136kB reserved_highatomic:0KB free_highatomic:0KB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:4kB unevictable:200kB writepending:0kB zspages:0kB present:15992kB managed:15360kB mlocked:0kB bounce:0kB free_pcp:308kB local_pcp:308kB free_cma:0kB
lowmem_reserve[]: 0 125 125 125 125
Node 0 DMA32 free:4880kB boost:0kB min:4980kB low:6224kB high:7468kB reserved_highatomic:0KB free_highatomic:0KB active_anon:8kB inactive_anon:0kB active_file:0kB inactive_file:12kB unevictable:852kB writepending:0kB zspages:0kB present:770052kB managed:128404kB mlocked:0kB bounce:0kB free_pcp:2068kB local_pcp:2068kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0 0
Node 0 DMA: 0*4kB 11*8kB (UE) 7*16kB (UE) 13*32kB (UE) 6*64kB (UE) 2*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 1256kB
Node 0 DMA32: 4*4kB (UME) 4*8kB (ME) 6*16kB (UME) 14*32kB (UME) 9*64kB (ME) 3*128kB (M) 3*256kB (UME) 1*512kB (M) 2*1024kB (UM) 0*2048kB 0*4096kB = 4880kB
Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
Node 0 hugepages_total=2 hugepages_free=2 hugepages_surp=0 hugepages_size=2048kB
41660 total pagecache pages
82 pages in swap cache
Free swap  = 123712kB
Total swap = 124996kB
393083 pages RAM
0 pages HighMem/MovableOnly
184439 pages reserved
0 pages cma reserved
Out of memory and no killable processes...
Kernel panic - not syncing: System is deadlocked on memory
CPU: 0 UID: 0 PID: 5318 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x99/0x250 lib/dump_stack.c:120
 vpanic+0x237/0x6d0 kernel/panic.c:489
 panic+0xb9/0xc0 kernel/panic.c:626
 out_of_memory+0x1211/0x12a0 mm/oom_kill.c:1181
 __alloc_pages_may_oom+0x1f2/0x330 mm/page_alloc.c:4060
 __alloc_pages_slowpath+0x713/0xcf0 mm/page_alloc.c:4870
 __alloc_frozen_pages_noprof+0x319/0x370 mm/page_alloc.c:5196
 alloc_pages_mpol+0x232/0x4a0 mm/mempolicy.c:2416
 alloc_frozen_pages_noprof mm/mempolicy.c:2487 [inline]
 alloc_pages_noprof+0xa9/0x190 mm/mempolicy.c:2507
 vm_area_alloc_pages mm/vmalloc.c:3647 [inline]
 __vmalloc_area_node mm/vmalloc.c:3724 [inline]
 __vmalloc_node_range_noprof+0x96c/0x12d0 mm/vmalloc.c:3897
 __vmalloc_node_noprof mm/vmalloc.c:3960 [inline]
 vmalloc_noprof+0xb2/0xf0 mm/vmalloc.c:3993
 __snd_dma_alloc_pages sound/core/memalloc.c:45 [inline]
 snd_dma_alloc_dir_pages+0x120/0x220 sound/core/memalloc.c:79
 do_alloc_pages+0x175/0x2c0 sound/core/pcm_memory.c:69
 snd_pcm_lib_malloc_pages+0x303/0x690 sound/core/pcm_memory.c:455
 snd_pcm_hw_params+0x7e5/0x1d30 sound/core/pcm_native.c:796
 snd_pcm_oss_change_params_locked+0x21cb/0x3e40 sound/core/oss/pcm_oss.c:965
 snd_pcm_oss_make_ready_locked sound/core/oss/pcm_oss.c:1186 [inline]
 snd_pcm_oss_sync+0x353/0xc30 sound/core/oss/pcm_oss.c:1667
 snd_pcm_oss_release+0xff/0x250 sound/core/oss/pcm_oss.c:2573
 __fput+0x44c/0xa70 fs/file_table.c:468
 task_work_run+0x1d4/0x260 kernel/task_work.c:227
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x6b5/0x2300 kernel/exit.c:966
 do_group_exit+0x21c/0x2d0 kernel/exit.c:1107
 get_signal+0x1285/0x1340 kernel/signal.c:3034
 arch_do_signal_or_restart+0xa0/0x790 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop+0x72/0x130 kernel/entry/common.c:40
 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline]
 do_syscall_64+0x2bd/0xfa0 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fba9138efc9
Code: Unable to access opcode bytes at 0x7fba9138ef9f.
RSP: 002b:00007fba9218d0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007fba915e5fa8 RCX: 00007fba9138efc9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fba915e5fa8
RBP: 00007fba915e5fa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fba915e6038 R14: 00007fff71275670 R15: 00007fff71275758
 </TASK>
Kernel Offset: disabled
Rebooting in 86400 seconds..
loop0: detected capacity change from 0 to 4096

Crashes (84):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/10/21 22:15 upstream 6548d364a3e8 252fbbad .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel panic: System is deadlocked on memory
2025/12/16 11:41 upstream 40fbbd64bba6 d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2025/12/16 04:52 upstream 8f0b4cce4481 d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2025/12/14 10:38 upstream 8f0b4cce4481 d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2025/12/13 07:53 upstream 9551a26f17d9 d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2025/12/05 23:46 upstream d1d36025a617 d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2025/12/04 20:33 upstream 6dfafbd0299a d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2025/12/04 06:31 upstream cc25df3e2e22 d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2025/12/02 01:29 upstream 1d18101a644e d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2025/12/01 10:26 upstream 7d0a66e4bb90 d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2025/11/26 16:03 upstream 30f09200cc4a c116feb4 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2025/11/24 11:46 upstream ac3fd01e4c1e bf6fe8fe .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2025/11/23 10:30 upstream d13f3ac64efb 4fb8ef37 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2025/11/16 07:10 upstream f824272b6e3f f7988ea4 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2025/11/12 16:00 upstream 24172e0d7990 07e030de .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2025/11/08 20:48 upstream e811c33b1f13 4e1406b4 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2025/11/08 12:53 upstream e811c33b1f13 4e1406b4 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2025/10/31 19:43 upstream b909d77359b8 2c50b6a9 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2025/10/22 00:58 upstream 6548d364a3e8 252fbbad .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2025/10/17 20:21 upstream 6f3b6e91f720 1c8c8cd8 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2025/10/10 07:01 upstream 5472d60c129f ff1712fe .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2025/10/07 20:19 upstream 971199ad2a0f 7e2882b3 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2025/10/06 02:30 upstream 6a74422b9710 49379ee0 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2025/09/23 11:04 upstream cec1e6e5d1ab 0ac7291c .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2025/09/21 15:10 upstream f975f08c2e89 67c37560 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2025/09/03 00:19 upstream e6b9dce0aeeb 96a211bc .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2025/08/26 17:50 upstream fab1beda7597 e12e5ba4 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2025/08/22 18:57 upstream cf6fc5eefc5b bf27483f .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2025/08/21 18:08 upstream 32b7144f806e 3e79b825 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2025/08/19 23:19 upstream b19a97d57c15 79512909 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2025/08/10 12:06 upstream 561c80369df0 32a0e5ed .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2025/07/27 21:47 upstream b711733e89a3 fb8f743d .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2025/07/24 04:16 upstream f9af7b5d9349 0c1d6ded .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2025/07/22 19:55 upstream 89be9a83ccf1 8e9d1dc1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2025/07/22 16:18 upstream 89be9a83ccf1 8e9d1dc1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2025/07/18 09:08 upstream 6832a9317eee 88248e14 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2025/07/16 16:17 upstream 155a3c003e55 124ec9cc .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 kernel panic: System is deadlocked on memory
2025/07/06 22:10 upstream 772b78c2abd8 4f67c4ae .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2025/07/06 21:02 upstream 772b78c2abd8 4f67c4ae .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2025/07/06 03:18 upstream a79a588fc176 4f67c4ae .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2025/07/05 16:32 upstream a79a588fc176 4f67c4ae .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2025/07/03 11:47 upstream b4911fb0b060 115ceea7 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2025/06/28 10:25 upstream 35e261cd95dd fc9d8ee5 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2025/06/27 21:05 upstream 67a993863163 803ce19b .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2025/06/11 01:24 upstream f09079bd04a9 5d7e17ca .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2025/06/09 22:23 upstream 19272b37aa4f 4826c28e .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2025/06/06 11:33 upstream e271ed52b344 3d899f2c .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2024/10/16 21:43 upstream c964ced77262 666f77ed .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2024/10/12 01:41 upstream 9e4c6c1ad9a1 084d8178 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2024/09/16 18:08 upstream 114143a59589 49cf0773 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2024/08/26 07:00 upstream 5be63fc19fca d7d32352 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2024/08/26 06:39 upstream 5be63fc19fca d7d32352 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2024/08/26 06:38 upstream 5be63fc19fca d7d32352 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2024/08/25 13:05 upstream 780bdc1ba776 d7d32352 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2024/08/25 12:58 upstream 780bdc1ba776 d7d32352 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2024/08/24 23:38 upstream d2bafcf224f3 d7d32352 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2024/08/23 08:47 upstream aa0743a22936 ce8a9099 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm64-mte kernel panic: System is deadlocked on memory
2024/08/21 10:49 upstream b311c1b497e5 db5852f9 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2024/08/12 10:53 upstream 7c626ce4bae1 1fef415f .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2024/08/03 16:17 upstream 17712b7ea075 1786a2a8 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm64-mte kernel panic: System is deadlocked on memory
2024/07/29 00:20 upstream 5437f30d3458 46eb10b7 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2024/07/19 05:11 upstream 720261cfc732 ee4e11c8 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
2024/07/09 15:24 upstream 4376e966ecb7 39158d80 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 kernel panic: System is deadlocked on memory
* Struck through repros no longer work on HEAD.