syzbot


INFO: task hung in path_openat (7)

Status: upstream: reported on 2022/10/06 10:29
Subsystems: fs
[Documentation on labels]
Reported-by: syzbot+950a0cdaa2fdd14f5bdc@syzkaller.appspotmail.com
First crash: 849d, last: 3h19m
Discussions (13)
Title Replies (including bot) Last reply
[syzbot] Monthly fs report (Mar 2024) 0 (1) 2024/03/16 12:09
[syzbot] Monthly fs report (Feb 2024) 0 (1) 2024/02/12 21:31
[syzbot] Monthly exfat report (Nov 2023) 2 (3) 2023/11/29 15:48
[syzbot] Monthly kernfs report (Nov 2023) 0 (1) 2023/11/29 13:03
[syzbot] Monthly nilfs report (Oct 2023) 0 (1) 2023/11/01 10:11
[syzbot] Monthly nilfs report (Sep 2023) 0 (1) 2023/10/02 09:42
[syzbot] Monthly exfat report (Aug 2023) 0 (1) 2023/08/09 12:33
[syzbot] Monthly ext4 report (Jul 2023) 0 (1) 2023/07/06 14:18
[syzbot] Monthly nilfs report (May 2023) 0 (1) 2023/05/29 08:50
[syzbot] Monthly nilfs report (Apr 2023) 0 (1) 2023/04/27 10:39
[syzbot] Monthly nilfs report 0 (1) 2023/03/27 11:03
[syzbot] [ext4] Monthly Report 0 (1) 2023/03/24 15:59
[syzbot] INFO: task hung in path_openat (7) 0 (1) 2022/10/06 10:29
Similar bugs (17)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.19 INFO: task hung in path_openat 2 1735d 1767d 0/1 auto-closed as invalid on 2020/01/11 07:40
upstream INFO: task hung in path_openat (4) fuse 1 1505d 1505d 0/28 auto-closed as invalid on 2020/07/28 10:23
upstream INFO: task hung in path_openat (3) fs 4 1665d 1781d 0/28 auto-closed as invalid on 2020/02/19 20:16
linux-6.1 INFO: task hung in path_openat (2) 1 165d 165d 0/3 auto-obsoleted due to no activity on 2024/04/08 11:39
linux-5.15 INFO: task hung in path_openat (2) 22 6d21h 60d 0/3 upstream: reported on 2024/04/14 03:45
linux-4.19 INFO: task hung in path_openat (2) 1 935d 935d 0/1 auto-closed as invalid on 2022/03/21 04:47
linux-4.14 INFO: task hung in path_openat 1 1175d 1175d 0/1 auto-closed as invalid on 2021/07/23 23:26
android-49 INFO: task hung in path_openat 64 1905d 1886d 0/3 auto-closed as invalid on 2019/09/22 08:41
upstream INFO: task hung in path_openat (5) fs 23 1146d 1307d 0/28 auto-closed as invalid on 2021/07/22 20:44
linux-4.19 INFO: task hung in path_openat (3) f2fs jfs 20 512d 671d 0/1 upstream: reported on 2022/08/11 13:14
upstream INFO: task hung in path_openat (6) fs 13 881d 1032d 0/28 closed as invalid on 2022/02/07 19:19
android-414 INFO: task hung in path_openat 42 1809d 1888d 0/1 auto-closed as invalid on 2019/10/28 21:04
linux-6.1 INFO: task hung in path_openat 3 333d 436d 0/3 auto-obsoleted due to no activity on 2023/10/23 12:08
linux-6.1 INFO: task hung in path_openat (3) 19 4d08h 59d 0/3 upstream: reported on 2024/04/14 13:03
upstream INFO: task hung in path_openat exfat 246 1973d 2263d 0/28 closed as dup on 2018/09/08 15:37
linux-5.15 INFO: task hung in path_openat C error 3 316d 428d 0/3 auto-obsoleted due to no activity on 2023/11/09 20:56
upstream INFO: task hung in path_openat (2) fs 1 1876d 1876d 0/28 closed as invalid on 2019/05/08 13:05

Sample crash report:
INFO: task syz-executor.3:5816 blocked for more than 143 seconds.
      Not tainted 6.10.0-rc3-syzkaller-00022-gcea2a26553ac #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3  state:D stack:27056 pid:5816  tgid:5812  ppid:5113   flags:0x00000006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5408 [inline]
 __schedule+0x1796/0x49d0 kernel/sched/core.c:6745
 __schedule_loop kernel/sched/core.c:6822 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6837
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894
 rwsem_down_write_slowpath+0xeeb/0x13b0 kernel/locking/rwsem.c:1178
 __down_write_common+0x1af/0x200 kernel/locking/rwsem.c:1306
 inode_lock include/linux/fs.h:791 [inline]
 open_last_lookups fs/namei.c:3571 [inline]
 path_openat+0x7d3/0x3280 fs/namei.c:3804
 do_filp_open+0x235/0x490 fs/namei.c:3834
 do_sys_openat2+0x13e/0x1d0 fs/open.c:1405
 do_sys_open fs/open.c:1420 [inline]
 __do_sys_openat fs/open.c:1436 [inline]
 __se_sys_openat fs/open.c:1431 [inline]
 __x64_sys_openat+0x247/0x2a0 fs/open.c:1431
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f6df5e7cea9
RSP: 002b:00007f6df6c6d0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f6df5fb4050 RCX: 00007f6df5e7cea9
RDX: 00000000000026e1 RSI: 00000000200000c0 RDI: ffffffffffffff9c
RBP: 00007f6df5eebff4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f6df5fb4050 R15: 00007ffe4abaea88
 </TASK>
INFO: task syz-executor.3:5818 blocked for more than 144 seconds.
      Not tainted 6.10.0-rc3-syzkaller-00022-gcea2a26553ac #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3  state:D stack:27768 pid:5818  tgid:5812  ppid:5113   flags:0x00000006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5408 [inline]
 __schedule+0x1796/0x49d0 kernel/sched/core.c:6745
 __schedule_loop kernel/sched/core.c:6822 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6837
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894
 rwsem_down_read_slowpath kernel/locking/rwsem.c:1086 [inline]
 __down_read_common kernel/locking/rwsem.c:1250 [inline]
 __down_read kernel/locking/rwsem.c:1263 [inline]
 down_read+0x705/0xa40 kernel/locking/rwsem.c:1528
 inode_lock_shared include/linux/fs.h:801 [inline]
 open_last_lookups fs/namei.c:3573 [inline]
 path_openat+0x7c4/0x3280 fs/namei.c:3804
 do_filp_open+0x235/0x490 fs/namei.c:3834

Crashes (2256):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/06/13 05:10 upstream cea2a26553ac 2aa5052f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: task hung in path_openat
2024/06/13 00:00 upstream cea2a26553ac f815599d .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/06/12 14:55 upstream 2ef5971ff345 4d75f4f7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in path_openat
2024/06/12 11:37 upstream 2ef5971ff345 4d75f4f7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in path_openat
2024/06/12 07:57 upstream 2ef5971ff345 4d75f4f7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/06/12 06:50 upstream 2ef5971ff345 4d75f4f7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/06/12 04:45 upstream 2ef5971ff345 4d75f4f7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: task hung in path_openat
2024/06/11 22:58 upstream 83a7eefedc9b 4d75f4f7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/06/11 21:57 upstream 83a7eefedc9b 4d75f4f7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/06/11 20:25 upstream 83a7eefedc9b 4d75f4f7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/06/11 06:51 upstream 83a7eefedc9b 048c640a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in path_openat
2024/06/10 18:13 upstream 83a7eefedc9b 048c640a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/06/10 11:04 upstream 83a7eefedc9b 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/06/10 09:29 upstream 83a7eefedc9b 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/06/10 06:00 upstream b8481381d4e2 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: task hung in path_openat
2024/06/10 03:33 upstream b8481381d4e2 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: task hung in path_openat
2024/06/10 00:17 upstream 771ed66105de 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in path_openat
2024/06/09 19:30 upstream 771ed66105de 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/06/09 13:29 upstream 061d1af7b030 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in path_openat
2024/06/09 03:49 upstream dc772f8237f9 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: task hung in path_openat
2024/06/09 02:14 upstream 061d1af7b030 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/06/08 22:51 upstream dc772f8237f9 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/06/08 20:40 upstream dc772f8237f9 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/06/08 12:28 upstream dc772f8237f9 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/06/08 09:48 upstream 96e09b8f8166 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/06/08 07:27 upstream 96e09b8f8166 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/06/08 03:24 upstream 96e09b8f8166 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/06/08 01:14 upstream 96e09b8f8166 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/06/07 17:25 upstream 8a92980606e3 121701b6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: task hung in path_openat
2024/06/07 14:23 upstream 8a92980606e3 121701b6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in path_openat
2024/06/07 12:40 upstream 8a92980606e3 121701b6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/06/07 09:17 upstream 8a92980606e3 121701b6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: task hung in path_openat
2024/06/07 07:06 upstream 8a92980606e3 121701b6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: task hung in path_openat
2024/06/07 01:48 upstream d30d0e49da71 121701b6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/06/07 00:55 upstream d30d0e49da71 121701b6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/06/06 22:40 upstream 2df0193e62cf 121701b6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: task hung in path_openat
2024/06/06 17:11 upstream 2df0193e62cf 121701b6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in path_openat
2024/06/06 09:28 upstream 71d7b52cc33b 121701b6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: task hung in path_openat
2024/06/06 04:31 upstream 2df0193e62cf 121701b6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/06/05 20:34 upstream 71d7b52cc33b 5aa1a7c9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/06/05 19:21 upstream 71d7b52cc33b 5aa1a7c9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/06/05 18:25 upstream 71d7b52cc33b 5aa1a7c9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/06/05 15:35 upstream 32f88d65f01b 5aa1a7c9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/06/05 14:22 upstream 32f88d65f01b 5aa1a7c9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/06/05 12:26 upstream 32f88d65f01b e1e2c66e .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/06/05 11:02 upstream 32f88d65f01b e1e2c66e .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/06/05 06:37 upstream 32f88d65f01b e1e2c66e .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2022/10/06 05:03 upstream 2bca25eaeba6 2c6543ad .config console log report info [disk image] [vmlinux] ci2-upstream-fs INFO: task hung in path_openat
2022/10/01 15:49 upstream ffb4d94b4314 feb56351 .config console log report info [disk image] [vmlinux] ci2-upstream-fs INFO: task hung in path_openat
2022/02/14 18:00 upstream 754e0b0e3560 8b9ca619 .config console log report info ci-upstream-kasan-gce-root INFO: task hung in path_openat
2024/06/12 09:02 linux-next a957267fa7e9 4d75f4f7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: task hung in path_openat
2024/06/09 20:52 linux-next d35b2284e966 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: task hung in path_openat
2024/06/08 08:45 linux-next d35b2284e966 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: task hung in path_openat
2024/06/07 15:56 linux-next d35b2284e966 121701b6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: task hung in path_openat
2024/06/06 06:40 linux-next ee78a17615ad 121701b6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: task hung in path_openat
2024/06/05 16:53 linux-next 234cb065ad82 e1e2c66e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: task hung in path_openat
2024/05/25 18:27 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fda5695d692c a10a183e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in path_openat
* Struck through repros no longer work on HEAD.