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INFO: task hung in path_openat (7)

Status: upstream: reported C repro on 2022/10/06 10:29
Subsystems: fs
[Documentation on labels]
Reported-by: syzbot+950a0cdaa2fdd14f5bdc@syzkaller.appspotmail.com
First crash: 1010d, last: 7h33m
Cause bisection: introduced by (bisect log) [merge commit]:
commit 4223a5be80b8998d717c6b0e1000070e0e336bf3
Author: Jens Axboe <axboe@kernel.dk>
Date: Thu Dec 10 14:08:22 2020 +0000

  Merge branch 'md-fixes' of https://git.kernel.org/pub/scm/linux/kernel/git/song/md into block-5.10

Crash: BUG: scheduling while atomic in corrupted (log)
Repro: C syz .config
  
▶ ▼ Discussions (14)
Title Replies (including bot) Last reply
[syzbot] INFO: task hung in path_openat (7) 0 (2) 2024/09/06 21:56
[syzbot] Monthly fs report (Jul 2024) 0 (1) 2024/07/18 07:59
[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
▶ ▼ Similar bugs (18)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.19 INFO: task hung in path_openat 2 1895d 1928d 0/1 auto-closed as invalid on 2020/01/11 07:40
linux-6.1 INFO: task hung in path_openat (4) 1 17d 17d 0/3 upstream: reported on 2024/11/04 05:51
upstream INFO: task hung in path_openat (4) fuse 1 1666d 1666d 0/28 auto-closed as invalid on 2020/07/28 10:23
upstream INFO: task hung in path_openat (3) fs 4 1826d 1942d 0/28 auto-closed as invalid on 2020/02/19 20:16
linux-6.1 INFO: task hung in path_openat (2) 1 326d 326d 0/3 auto-obsoleted due to no activity on 2024/04/08 11:39
linux-5.15 INFO: task hung in path_openat (2) origin:upstream C 93 2d00h 221d 0/3 upstream: reported C repro on 2024/04/14 03:45
linux-4.19 INFO: task hung in path_openat (2) 1 1096d 1096d 0/1 auto-closed as invalid on 2022/03/21 04:47
linux-4.14 INFO: task hung in path_openat 1 1336d 1336d 0/1 auto-closed as invalid on 2021/07/23 23:26
android-49 INFO: task hung in path_openat 64 2066d 2047d 0/3 auto-closed as invalid on 2019/09/22 08:41
upstream INFO: task hung in path_openat (5) fs 23 1307d 1468d 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 673d 832d 0/1 upstream: reported on 2022/08/11 13:14
upstream INFO: task hung in path_openat (6) fs 13 1042d 1193d 0/28 closed as invalid on 2022/02/07 19:19
android-414 INFO: task hung in path_openat 42 1970d 2049d 0/1 auto-closed as invalid on 2019/10/28 21:04
linux-6.1 INFO: task hung in path_openat 3 494d 596d 0/3 auto-obsoleted due to no activity on 2023/10/23 12:08
linux-6.1 INFO: task hung in path_openat (3) 28 96d 220d 0/3 auto-obsoleted due to no activity on 2024/10/25 20:43
upstream INFO: task hung in path_openat exfat 246 2134d 2424d 0/28 closed as dup on 2018/09/08 15:37
linux-5.15 INFO: task hung in path_openat C error 3 477d 589d 0/3 auto-obsoleted due to no activity on 2023/11/09 20:56
upstream INFO: task hung in path_openat (2) fs 1 2037d 2037d 0/28 closed as invalid on 2019/05/08 13:05

Sample crash report:
INFO: task syz-executor213:5867 blocked for more than 143 seconds.
      Not tainted 6.12.0-rc7-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor213 state:D stack:27920 pid:5867  tgid:5852  ppid:5849   flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5328 [inline]
 __schedule+0x17fa/0x4bd0 kernel/sched/core.c:6690
 __schedule_loop kernel/sched/core.c:6767 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6782
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6839
 rwsem_down_write_slowpath+0xeee/0x13b0 kernel/locking/rwsem.c:1176
 __down_write_common kernel/locking/rwsem.c:1304 [inline]
 __down_write kernel/locking/rwsem.c:1313 [inline]
 down_write+0x1d7/0x220 kernel/locking/rwsem.c:1578
 inode_lock include/linux/fs.h:815 [inline]
 open_last_lookups fs/namei.c:3691 [inline]
 path_openat+0x89a/0x3590 fs/namei.c:3930
 do_filp_open+0x235/0x490 fs/namei.c:3960
 do_sys_openat2+0x13e/0x1d0 fs/open.c:1415
 do_sys_open fs/open.c:1430 [inline]
 __do_sys_openat fs/open.c:1446 [inline]
 __se_sys_openat fs/open.c:1441 [inline]
 __x64_sys_openat+0x247/0x2a0 fs/open.c:1441
 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: 0033:0x7f06a2fa8c09
RSP: 002b:00007f06a2f3e228 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f06a303a6b8 RCX: 00007f06a2fa8c09
RDX: 000000000000275a RSI: 0000000020000040 RDI: 00000000ffffff9c
RBP: 00007f06a303a6b0 R08: 00007ffc5d2d1447 R09: 00007f06a2f3e6c0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f06a303a6bc
R13: 00007f06a2ffd06b R14: 00007f06a2ffd0c0 R15: 00007ffc5d2d1448
 </TASK>
INFO: task syz-executor213:5868 blocked for more than 144 seconds.
      Not tainted 6.12.0-rc7-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor213 state:D stack:27920 pid:5868  tgid:5853  ppid:5848   flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5328 [inline]
 __schedule+0x17fa/0x4bd0 kernel/sched/core.c:6690
 __schedule_loop kernel/sched/core.c:6767 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6782
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6839
 rwsem_down_write_slowpath+0xeee/0x13b0 kernel/locking/rwsem.c:1176
 __down_write_common kernel/locking/rwsem.c:1304 [inline]
 __down_write kernel/locking/rwsem.c:1313 [inline]
 down_write+0x1d7/0x220 kernel/locking/rwsem.c:1578
 inode_lock include/linux/fs.h:815 [inline]
 open_last_lookups fs/namei.c:3691 [inline]
 path_openat+0x89a/0x3590 fs/namei.c:3930
 do_filp_open+0x235/0x490 fs/namei.c:3960
 do_sys_openat2+0x13e/0x1d0 fs/open.c:1415
 do_sys_open fs/open.c:1430 [inline]
 __do_sys_openat fs/open.c:1446 [inline]
 __se_sys_openat fs/open.c:1441 [inline]
 __x64_sys_openat+0x247/0x2a0 fs/open.c:1441
 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: 0033:0x7f06a2fa8c09
RSP: 002b:00007f06a2f3e228 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f06a303a6b8 RCX: 00007f06a2fa8c09
RDX: 000000000000275a RSI: 0000000020000040 RDI: 00000000ffffff9c
RBP: 00007f06a303a6b0 R08: 00007ffc5d2d1447 R09: 00007f06a2f3e6c0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f06a303a6bc
R13: 00007f06a2ffd06b R14: 00007f06a2ffd0c0 R15: 00007ffc5d2d1448
 </TASK>
INFO: task syz-executor213:5869 blocked for more than 145 seconds.
      Not tainted 6.12.0-rc7-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor213 state:D stack:27920 pid:5869  tgid:5854  ppid:5847   flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5328 [inline]
 __schedule+0x17fa/0x4bd0 kernel/sched/core.c:6690
 __schedule_loop kernel/sched/core.c:6767 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6782
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6839
 rwsem_down_write_slowpath+0xeee/0x13b0 kernel/locking/rwsem.c:1176
 __down_write_common kernel/locking/rwsem.c:1304 [inline]
 __down_write kernel/locking/rwsem.c:1313 [inline]
 down_write+0x1d7/0x220 kernel/locking/rwsem.c:1578
 inode_lock include/linux/fs.h:815 [inline]
 open_last_lookups fs/namei.c:3691 [inline]
 path_openat+0x89a/0x3590 fs/namei.c:3930
 do_filp_open+0x235/0x490 fs/namei.c:3960
 do_sys_openat2+0x13e/0x1d0 fs/open.c:1415
 do_sys_open fs/open.c:1430 [inline]
 __do_sys_openat fs/open.c:1446 [inline]
 __se_sys_openat fs/open.c:1441 [inline]
 __x64_sys_openat+0x247/0x2a0 fs/open.c:1441
 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: 0033:0x7f06a2fa8c09
RSP: 002b:00007f06a2f3e228 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f06a303a6b8 RCX: 00007f06a2fa8c09
RDX: 000000000000275a RSI: 0000000020000040 RDI: 00000000ffffff9c
RBP: 00007f06a303a6b0 R08: 00007ffc5d2d1447 R09: 00007f06a2f3e6c0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f06a303a6bc
R13: 00007f06a2ffd06b R14: 00007f06a2ffd0c0 R15: 00007ffc5d2d1448
 </TASK>
INFO: task syz-executor213:5865 blocked for more than 146 seconds.
      Not tainted 6.12.0-rc7-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor213 state:D stack:27288 pid:5865  tgid:5855  ppid:5851   flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5328 [inline]
 __schedule+0x17fa/0x4bd0 kernel/sched/core.c:6690
 __schedule_loop kernel/sched/core.c:6767 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6782
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6839
 rwsem_down_write_slowpath+0xeee/0x13b0 kernel/locking/rwsem.c:1176
 __down_write_common kernel/locking/rwsem.c:1304 [inline]
 __down_write kernel/locking/rwsem.c:1313 [inline]
 down_write+0x1d7/0x220 kernel/locking/rwsem.c:1578
 inode_lock include/linux/fs.h:815 [inline]
 open_last_lookups fs/namei.c:3691 [inline]
 path_openat+0x89a/0x3590 fs/namei.c:3930
 do_filp_open+0x235/0x490 fs/namei.c:3960
 do_sys_openat2+0x13e/0x1d0 fs/open.c:1415
 do_sys_open fs/open.c:1430 [inline]
 __do_sys_openat fs/open.c:1446 [inline]
 __se_sys_openat fs/open.c:1441 [inline]
 __x64_sys_openat+0x247/0x2a0 fs/open.c:1441
 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: 0033:0x7f06a2fa8c09
RSP: 002b:00007f06a2f3e228 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f06a303a6b8 RCX: 00007f06a2fa8c09
RDX: 000000000000275a RSI: 0000000020000040 RDI: 00000000ffffff9c
RBP: 00007f06a303a6b0 R08: 00007ffc5d2d1447 R09: 00007f06a2f3e6c0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f06a303a6bc
R13: 00007f06a2ffd06b R14: 00007f06a2ffd0c0 R15: 00007ffc5d2d1448
 </TASK>
INFO: task syz-executor213:5866 blocked for more than 147 seconds.
      Not tainted 6.12.0-rc7-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor213 state:D stack:27920 pid:5866  tgid:5857  ppid:5850   flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5328 [inline]
 __schedule+0x17fa/0x4bd0 kernel/sched/core.c:6690
 __schedule_loop kernel/sched/core.c:6767 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6782
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6839
 rwsem_down_write_slowpath+0xeee/0x13b0 kernel/locking/rwsem.c:1176
 __down_write_common kernel/locking/rwsem.c:1304 [inline]
 __down_write kernel/locking/rwsem.c:1313 [inline]
 down_write+0x1d7/0x220 kernel/locking/rwsem.c:1578
 inode_lock include/linux/fs.h:815 [inline]
 open_last_lookups fs/namei.c:3691 [inline]
 path_openat+0x89a/0x3590 fs/namei.c:3930
 do_filp_open+0x235/0x490 fs/namei.c:3960
 do_sys_openat2+0x13e/0x1d0 fs/open.c:1415
 do_sys_open fs/open.c:1430 [inline]
 __do_sys_openat fs/open.c:1446 [inline]
 __se_sys_openat fs/open.c:1441 [inline]
 __x64_sys_openat+0x247/0x2a0 fs/open.c:1441
 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: 0033:0x7f06a2fa8c09
RSP: 002b:00007f06a2f3e228 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f06a303a6b8 RCX: 00007f06a2fa8c09
RDX: 000000000000275a RSI: 0000000020000040 RDI: 00000000ffffff9c
RBP: 00007f06a303a6b0 R08: 00007ffc5d2d1447 R09: 00007f06a2f3e6c0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f06a303a6bc
R13: 00007f06a2ffd06b R14: 00007f06a2ffd0c0 R15: 00007ffc5d2d1448
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/30:
 #0: ffffffff8e937da0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
 #0: ffffffff8e937da0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #0: ffffffff8e937da0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6720
1 lock held by kswapd0/88:
2 locks held by getty/5584:
 #0: ffff88803122d0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
 #1: ffffc90002f062f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6a6/0x1e00 drivers/tty/n_tty.c:2211
1 lock held by syz-executor213/5858:
1 lock held by syz-executor213/5867:
 #0: ffff8880779506c0 (&type->i_mutex_dir_key#6){++++}-{3:3}, at: inode_lock include/linux/fs.h:815 [inline]
 #0: ffff8880779506c0 (&type->i_mutex_dir_key#6){++++}-{3:3}, at: open_last_lookups fs/namei.c:3691 [inline]
 #0: ffff8880779506c0 (&type->i_mutex_dir_key#6){++++}-{3:3}, at: path_openat+0x89a/0x3590 fs/namei.c:3930
1 lock held by syz-executor213/5862:
1 lock held by syz-executor213/5868:
 #0: ffff8880779a8c00 (&type->i_mutex_dir_key#6){++++}-{3:3}, at: inode_lock include/linux/fs.h:815 [inline]
 #0: ffff8880779a8c00 (&type->i_mutex_dir_key#6){++++}-{3:3}, at: open_last_lookups fs/namei.c:3691 [inline]
 #0: ffff8880779a8c00 (&type->i_mutex_dir_key#6){++++}-{3:3}, at: path_openat+0x89a/0x3590 fs/namei.c:3930
2 locks held by syz-executor213/5861:
1 lock held by syz-executor213/5869:
 #0: ffff8880779a86c0 (&type->i_mutex_dir_key#6){++++}-{3:3}, at: inode_lock include/linux/fs.h:815 [inline]
 #0: ffff8880779a86c0 (&type->i_mutex_dir_key#6){++++}-{3:3}, at: open_last_lookups fs/namei.c:3691 [inline]
 #0: ffff8880779a86c0 (&type->i_mutex_dir_key#6){++++}-{3:3}, at: path_openat+0x89a/0x3590 fs/namei.c:3930
1 lock held by syz-executor213/5859:
1 lock held by syz-executor213/5865:
 #0: ffff8880779a8180 (&type->i_mutex_dir_key#6){++++}-{3:3}, at: inode_lock include/linux/fs.h:815 [inline]
 #0: ffff8880779a8180 (&type->i_mutex_dir_key#6){++++}-{3:3}, at: open_last_lookups fs/namei.c:3691 [inline]
 #0: ffff8880779a8180 (&type->i_mutex_dir_key#6){++++}-{3:3}, at: path_openat+0x89a/0x3590 fs/namei.c:3930
1 lock held by syz-executor213/5860:
1 lock held by syz-executor213/5866:
 #0: ffff888077950180 (&type->i_mutex_dir_key#6){++++}-{3:3}, at: inode_lock include/linux/fs.h:815 [inline]
 #0: ffff888077950180 (&type->i_mutex_dir_key#6){++++}-{3:3}, at: open_last_lookups fs/namei.c:3691 [inline]
 #0: ffff888077950180 (&type->i_mutex_dir_key#6){++++}-{3:3}, at: path_openat+0x89a/0x3590 fs/namei.c:3930

=============================================

NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.12.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113
 nmi_trigger_cpumask_backtrace+0x198/0x320 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline]
 watchdog+0xff4/0x1040 kernel/hung_task.c:379
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 5858 Comm: syz-executor213 Not tainted 6.12.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
RIP: 0010:task_irq_context kernel/locking/lockdep.c:4655 [inline]
RIP: 0010:__lock_acquire+0x40c/0x2050 kernel/locking/lockdep.c:5139
Code: 00 00 00 48 89 03 65 8b 05 bd 35 92 7e 31 db 85 c0 0f 95 c3 01 db 49 8d bc 24 c4 0a 00 00 48 89 f8 48 c1 e8 03 48 89 44 24 58 <0f> b6 04 30 84 c0 48 89 7c 24 18 0f 85 90 13 00 00 31 c0 83 bc 24
RSP: 0018:ffffc900040a7390 EFLAGS: 00000803
RAX: 1ffff1100fa3bc98 RBX: 0000000000000000 RCX: ffffffff9a39f903
RDX: 0000000000000001 RSI: dffffc0000000000 RDI: ffff88807d1de4c4
RBP: 0000000000000005 R08: 0000000000000022 R09: ffff88807d1de4e0
R10: dffffc0000000000 R11: fffffbfff2037bae R12: ffff88807d1dda00
R13: 0000000000000022 R14: 0000000000000000 R15: ffffffff8e937da0
FS:  00007f06a2f5f6c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffd2f46aedc CR3: 00000000351fe000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5825
 rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
 rcu_read_lock include/linux/rcupdate.h:849 [inline]
 filemap_get_entry+0x144/0x3b0 mm/filemap.c:1839
 __filemap_get_folio+0x71/0xbd0 mm/filemap.c:1887
 filemap_get_folio include/linux/pagemap.h:770 [inline]
 do_read_cache_folio+0xdd/0x850 mm/filemap.c:3785
 read_mapping_folio include/linux/pagemap.h:1011 [inline]
 dir_get_folio fs/sysv/dir.c:64 [inline]
 sysv_find_entry+0x16a/0x4b0 fs/sysv/dir.c:154
 sysv_inode_by_name+0x98/0x2a0 fs/sysv/dir.c:370
 sysv_lookup+0x6b/0xe0 fs/sysv/namei.c:38
 lookup_open fs/namei.c:3573 [inline]
 open_last_lookups fs/namei.c:3694 [inline]
 path_openat+0x11a7/0x3590 fs/namei.c:3930
 do_filp_open+0x235/0x490 fs/namei.c:3960
 do_sys_openat2+0x13e/0x1d0 fs/open.c:1415
 do_sys_open fs/open.c:1430 [inline]
 __do_sys_openat fs/open.c:1446 [inline]
 __se_sys_openat fs/open.c:1441 [inline]
 __x64_sys_openat+0x247/0x2a0 fs/open.c:1441
 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: 0033:0x7f06a2fa8c09
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 18 00 00 90 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 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f06a2f5f228 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f06a303a6a8 RCX: 00007f06a2fa8c09
RDX: 0000000000000000 RSI: 0000000020000540 RDI: 00000000ffffff9c
RBP: 00007f06a303a6a0 R08: 00007f06a2f5f6c0 R09: 00007f06a2f5f6c0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f06a303a6ac
R13: 00007f06a2ffd06b R14: 00007f06a2ffd0c0 R15: 00007ffc5d2d1448
 </TASK>
INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.260 msecs

Crashes (4052):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/11/11 13:49 upstream 2d5404caa8c7 0c4b1325 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-upstream-fs INFO: task hung in path_openat
2024/10/13 19:14 upstream 36c254515dc6 084d8178 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-upstream-fs INFO: task hung in path_openat
2024/09/16 08:44 upstream 98f7e32f20d2 08d8a733 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-upstream-fs INFO: task hung in path_openat
2024/09/09 22:48 upstream da3ea35007d0 073f8be2 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-upstream-fs INFO: task hung in path_openat
2024/09/06 21:56 upstream b831f83e40a2 9750182a .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-upstream-fs INFO: task hung in path_openat
2024/10/14 08:58 upstream 6485cf5ea253 084d8178 .config console log report syz / log C [disk image (non-bootable)] [vmlinux] [kernel image] [mounted in repro] ci-snapshot-upstream-root INFO: task hung in path_openat
2024/09/19 02:07 upstream 4a39ac5b7d62 c673ca06 .config console log report syz / log C [disk image (non-bootable)] [vmlinux] [kernel image] [mounted in repro] ci-snapshot-upstream-root INFO: task hung in path_openat
2024/11/20 23:15 upstream 8f7c8b88bda4 4fca1650 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/11/20 21:45 upstream 8f7c8b88bda4 4fca1650 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/11/19 19:21 upstream 158f238aa69d 7d02db5a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/11/19 12:30 upstream 23acd177540d 571351cb .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/11/19 09:58 upstream 23acd177540d 571351cb .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/11/19 07:01 upstream 23acd177540d 571351cb .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/11/19 00:34 upstream adc218676eef 571351cb .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in path_openat
2024/11/18 19:48 upstream adc218676eef e7bb5d6e .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/11/18 08:52 upstream adc218676eef cfe3a04a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/11/18 07:38 upstream f66d6acccbc0 cfe3a04a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in path_openat
2024/11/18 04:28 upstream adc218676eef cfe3a04a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/11/17 18:43 upstream 4a5df3796467 cfe3a04a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/11/17 16:25 upstream 4a5df3796467 cfe3a04a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/11/17 13:26 upstream 4a5df3796467 cfe3a04a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/11/17 10:52 upstream b5a24181e461 cfe3a04a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/11/17 07:55 upstream b5a24181e461 cfe3a04a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/11/17 04:10 upstream b5a24181e461 cfe3a04a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/11/17 01:08 upstream e8bdb3c8be08 cfe3a04a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in path_openat
2024/11/16 19:30 upstream e8bdb3c8be08 cfe3a04a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/11/16 18:23 upstream e8bdb3c8be08 cfe3a04a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/11/15 21:53 upstream f868cd251776 cfe3a04a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/11/15 00:19 upstream cfaaa7d010d1 a8c99394 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/11/14 22:35 upstream cfaaa7d010d1 a8c99394 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/11/14 18:44 upstream 0a9b9d17f3a7 a8c99394 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/11/14 06:08 upstream 0a9b9d17f3a7 bb3f8425 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/11/14 00:29 upstream f1b785f4c787 bb3f8425 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/11/13 05:32 upstream 3022e9d00ebe 62026c85 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/11/13 03:01 upstream 3022e9d00ebe 62026c85 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/11/12 18:18 upstream 2d5404caa8c7 75bb1b32 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/11/11 23:06 upstream 2d5404caa8c7 0c4b1325 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/11/11 02:19 upstream a9cda7c0ffed 6b856513 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/11/10 19:01 upstream de2f378f2b77 6b856513 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in path_openat
2024/11/10 14:43 upstream de2f378f2b77 6b856513 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in path_openat
2024/11/10 13:30 upstream de2f378f2b77 6b856513 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/11/10 03:26 upstream de2f378f2b77 6b856513 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/11/09 11:57 upstream da4373fbcf00 6b856513 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/11/08 16:44 upstream 906bd684e4b1 179b040e .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/11/08 14:26 upstream 906bd684e4b1 179b040e .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/11/08 08:32 upstream 906bd684e4b1 179b040e .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/11/08 04:49 upstream 906bd684e4b1 179b040e .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/10/07 02:00 upstream 8cf0b93919e1 d7906eff .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: task hung in path_openat
2024/06/26 07:38 upstream 55027e689933 dec8bc94 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root 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
2024/11/19 14:10 linux-next 414c97c966b6 571351cb .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: task hung in path_openat
2024/11/13 11:55 linux-next 929beafbe7ac 62026c85 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: task hung in path_openat
2024/11/12 14:52 linux-next 929beafbe7ac 75bb1b32 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: task hung in path_openat
2024/11/12 00:23 linux-next 929beafbe7ac 97fe5517 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: task hung in path_openat
2024/11/10 16:45 linux-next 929beafbe7ac 6b856513 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: task hung in path_openat
2024/10/19 07:36 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci d2b1b3bccef6 cd6fc0a3 .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.