syzbot


INFO: task hung in exit_aio

Status: closed as dup on 2018/04/08 22:50
Reported-by: syzbot+9989fce6df2040ae9a91d49373891afd5612fc3f@syzkaller.appspotmail.com
First crash: 1765d, last: 1141d
Duplicate of (1):
Title Repro Cause bisect Fix bisect Count Last Reported
INFO: task hung in aead_recvmsg C done 11991 983d 1756d
similar bugs (2):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
android-414 INFO: task hung in exit_aio 3 1247d 1247d 0/1 auto-closed as invalid on 2019/10/25 08:40
upstream INFO: task hung in exit_aio (2) 3 324d 402d 0/24 closed as invalid on 2022/02/07 19:09

Sample crash report:
INFO: task syz-executor116:9986 blocked for more than 143 seconds.
      Not tainted 5.3.0-rc4+ #105
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor116 D26576  9986   9931 0x80000000
Call Trace:
 context_switch kernel/sched/core.c:3254 [inline]
 __schedule+0x755/0x1580 kernel/sched/core.c:3880
 schedule+0xa8/0x270 kernel/sched/core.c:3944
 schedule_timeout+0x717/0xc50 kernel/time/timer.c:1783
 do_wait_for_common kernel/sched/completion.c:83 [inline]
 __wait_for_common kernel/sched/completion.c:104 [inline]
 wait_for_common kernel/sched/completion.c:115 [inline]
 wait_for_completion+0x29c/0x440 kernel/sched/completion.c:136
 exit_aio+0x321/0x3a0 fs/aio.c:895
 __mmput kernel/fork.c:1061 [inline]
 mmput+0xcf/0x4d0 kernel/fork.c:1085
 exit_mm kernel/exit.c:547 [inline]
 do_exit+0x84e/0x2e50 kernel/exit.c:866
 do_group_exit+0x135/0x360 kernel/exit.c:983
 __do_sys_exit_group kernel/exit.c:994 [inline]
 __se_sys_exit_group kernel/exit.c:992 [inline]
 __x64_sys_exit_group+0x44/0x50 kernel/exit.c:992
 do_syscall_64+0xfd/0x6a0 arch/x86/entry/common.c:296
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x440808
Code: Bad RIP value.
RSP: 002b:00007ffc977f46d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000440808
RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000
RBP: 00000000004c0f10 R08: 00000000000000e7 R09: ffffffffffffffd0
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00000000006d3180 R14: 0000000000000000 R15: 0000000000000000
INFO: task syz-executor116:10177 blocked for more than 143 seconds.
      Not tainted 5.3.0-rc4+ #105
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor116 D26704 10177   9934 0x80000000
Call Trace:
 context_switch kernel/sched/core.c:3254 [inline]
 __schedule+0x755/0x1580 kernel/sched/core.c:3880
 schedule+0xa8/0x270 kernel/sched/core.c:3944
 schedule_timeout+0x717/0xc50 kernel/time/timer.c:1783
 do_wait_for_common kernel/sched/completion.c:83 [inline]
 __wait_for_common kernel/sched/completion.c:104 [inline]
 wait_for_common kernel/sched/completion.c:115 [inline]
 wait_for_completion+0x29c/0x440 kernel/sched/completion.c:136
 exit_aio+0x321/0x3a0 fs/aio.c:895
 __mmput kernel/fork.c:1061 [inline]
 mmput+0xcf/0x4d0 kernel/fork.c:1085
 exit_mm kernel/exit.c:547 [inline]
 do_exit+0x84e/0x2e50 kernel/exit.c:866
 do_group_exit+0x135/0x360 kernel/exit.c:983
 __do_sys_exit_group kernel/exit.c:994 [inline]
 __se_sys_exit_group kernel/exit.c:992 [inline]
 __x64_sys_exit_group+0x44/0x50 kernel/exit.c:992
 do_syscall_64+0xfd/0x6a0 arch/x86/entry/common.c:296
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x440808
Code: 00 00 be 3c 00 00 00 eb 19 66 0f 1f 84 00 00 00 00 00 48 89 d7 89 f0 0f 05 48 3d 00 f0 ff ff 77 21 f4 48 89 d7 44 89 c0 0f 05 <48> 3d 00 f0 ff ff 76 e0 f7 d8 64 41 89 01 eb d8 0f 1f 84 00 00 00
RSP: 002b:00007ffc977f46d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000440808
RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000
RBP: 00000000004c0f10 R08: 00000000000000e7 R09: ffffffffffffffd0
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00000000006d3180 R14: 0000000000000000 R15: 0000000000000000
INFO: lockdep is turned off.
NMI backtrace for cpu 0
CPU: 0 PID: 1057 Comm: khungtaskd Not tainted 5.3.0-rc4+ #105
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x172/0x1f0 lib/dump_stack.c:113
 nmi_cpu_backtrace.cold+0x70/0xb2 lib/nmi_backtrace.c:101
 nmi_trigger_cpumask_backtrace+0x23b/0x28b lib/nmi_backtrace.c:62
 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38
 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:205 [inline]
 watchdog+0x9d0/0xef0 kernel/hung_task.c:289
 kthread+0x361/0x430 kernel/kthread.c:255
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1 skipped: idling at native_safe_halt+0xe/0x10 arch/x86/include/asm/irqflags.h:60

Crashes (17519):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-selinux-root 2019/08/17 08:47 upstream a69e90512d9d 8fd428a1 .config log report syz C
ci-upstream-kasan-gce-root 2019/08/17 08:46 upstream 2d63ba3e41db 8fd428a1 .config log report syz C
ci-upstream-kasan-gce-smack-root 2019/08/17 08:29 upstream a69e90512d9d 8fd428a1 .config log report syz C
ci-upstream-kasan-gce 2019/08/17 06:16 upstream 2d63ba3e41db 8fd428a1 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2019/08/17 02:45 upstream a69e90512d9d 8fd428a1 .config log report syz C
ci-upstream-kasan-gce-smack-root 2019/08/17 02:34 upstream a69e90512d9d 8fd428a1 .config log report syz C
ci-upstream-kasan-gce 2019/08/17 02:34 upstream 2d63ba3e41db 8fd428a1 .config log report syz C
ci-upstream-kasan-gce-root 2019/08/14 00:23 upstream ee1c7bd33e66 ef801a3e .config log report syz C
ci-upstream-kasan-gce 2019/08/13 15:45 upstream d45331b00ddb 8620c2c2 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2019/08/13 14:28 upstream d45331b00ddb 8620c2c2 .config log report syz C
ci-upstream-kasan-gce-root 2019/08/13 14:21 upstream d45331b00ddb 8620c2c2 .config log report syz C
ci-upstream-kasan-gce 2019/08/13 12:29 upstream d45331b00ddb 8620c2c2 .config log report syz C
ci-upstream-kasan-gce-root 2019/08/11 10:54 upstream 296d05cb0d3c acb51638 .config log report syz C
ci-upstream-kasan-gce 2019/08/11 04:33 upstream 451577f3e3a9 acb51638 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2019/08/11 04:31 upstream 451577f3e3a9 acb51638 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2019/08/02 07:50 upstream 1e78030e5e5b 835dffe7 .config log report syz C
ci-upstream-kasan-gce-root 2019/08/02 07:41 upstream 1e78030e5e5b 835dffe7 .config log report syz C
ci-upstream-kasan-gce 2019/04/07 00:49 upstream f654f0fc0bd3 c34fde03 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2019/04/07 00:48 upstream f654f0fc0bd3 c34fde03 .config log report syz C
ci-upstream-kasan-gce 2019/04/06 22:36 upstream f654f0fc0bd3 c34fde03 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2019/04/06 22:35 upstream f654f0fc0bd3 c34fde03 .config log report syz C
ci-upstream-kasan-gce-root 2019/04/06 22:33 upstream f654f0fc0bd3 c34fde03 .config log report syz C
ci-upstream-kasan-gce-smack-root 2019/04/06 21:08 upstream f654f0fc0bd3 c34fde03 .config log report syz C
ci-upstream-kasan-gce-smack-root 2019/04/06 08:48 upstream 7f46774c6480 fa763482 .config log report syz C
ci-upstream-kasan-gce-root 2019/04/06 07:23 upstream 7f46774c6480 fa763482 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2019/04/04 03:31 upstream 8ed86627f715 d6fc4177 .config log report syz C
ci-upstream-kasan-gce-smack-root 2019/04/04 01:54 upstream 8ed86627f715 d6fc4177 .config log report syz C
ci-upstream-kasan-gce-root 2019/04/04 00:43 upstream 8ed86627f715 d6fc4177 .config log report syz C
ci-upstream-kasan-gce 2019/04/03 15:28 upstream a816fd6b49b6 dfd3394d .config log report syz C
ci-upstream-kasan-gce-selinux-root 2019/04/02 23:34 upstream 5e7a8ca31926 dfd3394d .config log report syz C
ci-upstream-kasan-gce-smack-root 2019/04/02 21:29 upstream 5e7a8ca31926 dfd3394d .config log report syz C
ci-upstream-kasan-gce-selinux-root 2019/03/27 03:47 upstream 65ae689329c5 55684ce1 .config log report syz C
ci-upstream-kasan-gce-root 2019/03/27 03:43 upstream 65ae689329c5 55684ce1 .config log report syz C
ci-upstream-kasan-gce 2019/03/24 20:42 upstream 1bdd3dbfff7a acbc5b7d .config log report syz C
ci-upstream-kasan-gce-root 2019/03/24 20:40 upstream 1bdd3dbfff7a acbc5b7d .config log report syz C
ci-upstream-kasan-gce-smack-root 2019/03/24 20:40 upstream 1bdd3dbfff7a acbc5b7d .config log report syz C
ci-upstream-kasan-gce-selinux-root 2019/03/24 19:24 upstream 1bdd3dbfff7a acbc5b7d .config log report syz C
ci-upstream-kasan-gce 2019/02/06 21:17 upstream 8834f5600cf3 d25487bc .config log report syz C
ci-upstream-kasan-gce-root 2019/02/06 11:54 upstream 8834f5600cf3 d672172c .config log report syz C
ci-upstream-kasan-gce-386 2019/08/17 06:48 upstream 2d63ba3e41db 8fd428a1 .config log report syz C
ci-upstream-kasan-gce-386 2019/08/17 03:02 upstream 2d63ba3e41db 8fd428a1 .config log report syz C
ci-upstream-kasan-gce-386 2019/08/13 15:40 upstream d45331b00ddb 8620c2c2 .config log report syz C
ci-upstream-kasan-gce-386 2019/08/13 12:29 upstream d45331b00ddb 8620c2c2 .config log report syz C
ci-upstream-kasan-gce-386 2019/08/11 04:32 upstream 451577f3e3a9 acb51638 .config log report syz C
ci-upstream-kasan-gce-386 2019/04/06 23:11 upstream f654f0fc0bd3 c34fde03 .config log report syz C
ci-upstream-kasan-gce-386 2019/04/03 16:55 upstream a816fd6b49b6 dfd3394d .config log report syz C
ci-upstream-kasan-gce-386 2019/03/27 03:18 upstream 65ae689329c5 55684ce1 .config log report syz C
ci-upstream-kasan-gce-386 2019/03/24 20:42 upstream 1bdd3dbfff7a acbc5b7d .config log report syz C
ci-upstream-kasan-gce-386 2019/02/06 11:33 upstream 8834f5600cf3 d672172c .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2019/08/17 08:48 linux-next 0c3d3d648b3e 8fd428a1 .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2019/08/13 15:56 linux-next 0b821f0a8339 8620c2c2 .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2019/08/02 16:21 linux-next 7b4980e0bcf4 835dffe7 .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2019/03/27 01:15 linux-next ab8bba4ec4b9 55684ce1 .config log report syz C
ci-upstream-kasan-gce 2019/08/17 16:55 upstream 6e625a1a3f47 55bf8926 .config log report
ci-upstream-kasan-gce 2019/08/15 02:55 upstream a8dba0531bc0 0d298d6b .config log report
ci-upstream-kasan-gce 2019/08/13 21:05 upstream ee1c7bd33e66 ef801a3e .config log report
ci-upstream-kasan-gce 2019/08/13 00:30 upstream d45331b00ddb 8620c2c2 .config log report
ci-upstream-kasan-gce 2019/08/12 10:40 upstream d45331b00ddb acb51638 .config log report
ci-upstream-kasan-gce-smack-root 2019/08/11 16:50 upstream 296d05cb0d3c acb51638 .config log report
ci-upstream-kasan-gce 2019/08/09 07:49 upstream b678c568c561 ede31a9b .config log report
ci-upstream-kasan-gce-selinux-root 2019/08/08 04:04 upstream ecb095bff5d4 e6ebef88 .config log report
ci-upstream-kasan-gce-root 2019/08/07 23:13 upstream 33920f1ec5bf e6ebef88 .config log report
ci-upstream-kasan-gce-smack-root 2019/08/02 04:36 upstream 1e78030e5e5b 835dffe7 .config log report
ci-upstream-kasan-gce 2019/08/01 09:39 upstream 5c6207539aea c692b5bd .config log report
ci-upstream-kasan-gce-root 2019/07/30 15:04 upstream 2a11c76e5301 f28bf2a5 .config log report
ci-upstream-kasan-gce 2019/04/10 05:27 upstream 869e3305f23d 65b612b7 .config log report
ci-upstream-kasan-gce 2019/04/10 05:11 upstream 869e3305f23d 65b612b7 .config log report
ci-upstream-kasan-gce-root 2019/04/10 04:53 upstream 869e3305f23d 65b612b7 .config log report
ci-upstream-kasan-gce 2019/04/10 04:40 upstream 869e3305f23d 65b612b7 .config log report
ci-upstream-kasan-gce 2019/04/10 04:23 upstream 869e3305f23d 65b612b7 .config log report
ci-upstream-kasan-gce-root 2019/04/10 04:11 upstream 869e3305f23d 65b612b7 .config log report
ci-upstream-kasan-gce-smack-root 2019/04/10 03:51 upstream 869e3305f23d 65b612b7 .config log report
ci-upstream-kasan-gce 2019/04/10 03:36 upstream 869e3305f23d 65b612b7 .config log report
ci-upstream-kasan-gce-smack-root 2019/04/10 03:19 upstream 869e3305f23d 65b612b7 .config log report
ci-upstream-kasan-gce 2019/04/10 03:03 upstream 869e3305f23d 65b612b7 .config log report
ci-upstream-kasan-gce-selinux-root 2019/04/10 02:34 upstream 869e3305f23d 65b612b7 .config log report
ci-upstream-kasan-gce-selinux-root 2019/04/10 02:08 upstream 869e3305f23d 65b612b7 .config log report
ci-upstream-kasan-gce 2019/04/10 01:53 upstream 869e3305f23d 65b612b7 .config log report
ci-upstream-kasan-gce-selinux-root 2019/04/10 01:38 upstream 869e3305f23d 65b612b7 .config log report
ci-upstream-kasan-gce-root 2019/04/10 01:23 upstream 869e3305f23d 65b612b7 .config log report
ci-upstream-kasan-gce-root 2019/04/10 00:52 upstream 869e3305f23d 65b612b7 .config log report
ci-upstream-kasan-gce 2019/04/10 00:34 upstream 869e3305f23d 65b612b7 .config log report
ci-upstream-kasan-gce-selinux-root 2019/04/10 00:08 upstream 869e3305f23d 65b612b7 .config log report
ci-upstream-kasan-gce 2019/04/09 23:54 upstream 869e3305f23d 65b612b7 .config log report
ci-upstream-kasan-gce 2019/04/09 23:40 upstream 869e3305f23d 65b612b7 .config log report
ci-upstream-kasan-gce 2019/04/09 23:27 upstream 869e3305f23d 65b612b7 .config log report
ci-upstream-kasan-gce 2019/04/09 23:07 upstream 869e3305f23d 65b612b7 .config log report
ci-upstream-kasan-gce-smack-root 2019/04/09 22:31 upstream 869e3305f23d 65b612b7 .config log report
ci-upstream-kasan-gce-root 2019/04/09 22:18 upstream 869e3305f23d 65b612b7 .config log report
ci-upstream-kasan-gce 2019/04/09 21:14 upstream 869e3305f23d 995065ff .config log report
ci-upstream-kasan-gce-386 2019/08/08 15:13 upstream ecb095bff5d4 e6ebef88 .config log report
ci-upstream-kasan-gce-386 2019/08/03 00:14 upstream 755f1fed27f4 6affd8e8 .config log report
ci-upstream-kasan-gce-386 2019/08/01 06:36 upstream 5c6207539aea c692b5bd .config log report
ci-upstream-kasan-gce-386 2019/04/09 22:51 upstream 869e3305f23d 65b612b7 .config log report
ci-upstream-next-kasan-gce 2018/01/17 04:33 linux-next fdddade65d7b a46e5318 .config log report
ci-upstream-mmots-kasan-gce 2018/01/16 21:12 mmots ce3c209f6733 a46e5318 .config log report
* Struck through repros no longer work on HEAD.