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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: 1068d, last: 3d12h
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 1953d 1986d 0/1 auto-closed as invalid on 2020/01/11 07:40
linux-6.1 INFO: task hung in path_openat (4) origin:upstream C 9 4d16h 74d 0/3 upstream: reported C repro on 2024/11/04 05:51
upstream INFO: task hung in path_openat (4) fuse 1 1724d 1724d 0/28 auto-closed as invalid on 2020/07/28 10:23
upstream INFO: task hung in path_openat (3) fs 4 1884d 2000d 0/28 auto-closed as invalid on 2020/02/19 20:16
linux-6.1 INFO: task hung in path_openat (2) 1 384d 384d 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 101 7d16h 278d 0/3 upstream: reported C repro on 2024/04/14 03:45
linux-4.19 INFO: task hung in path_openat (2) 1 1153d 1153d 0/1 auto-closed as invalid on 2022/03/21 04:47
linux-4.14 INFO: task hung in path_openat 1 1394d 1394d 0/1 auto-closed as invalid on 2021/07/23 23:26
android-49 INFO: task hung in path_openat 64 2124d 2105d 0/3 auto-closed as invalid on 2019/09/22 08:41
upstream INFO: task hung in path_openat (5) fs 23 1365d 1526d 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 731d 890d 0/1 upstream: reported on 2022/08/11 13:14
upstream INFO: task hung in path_openat (6) fs 13 1100d 1250d 0/28 closed as invalid on 2022/02/07 19:19
android-414 INFO: task hung in path_openat 42 2028d 2107d 0/1 auto-closed as invalid on 2019/10/28 21:04
linux-6.1 INFO: task hung in path_openat 3 552d 654d 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 154d 278d 0/3 auto-obsoleted due to no activity on 2024/10/25 20:43
upstream INFO: task hung in path_openat exfat 246 2192d 2482d 0/28 closed as dup on 2018/09/08 15:37
linux-5.15 INFO: task hung in path_openat C error 3 535d 647d 0/3 auto-obsoleted due to no activity on 2023/11/09 20:56
upstream INFO: task hung in path_openat (2) fs 1 2095d 2095d 0/28 closed as invalid on 2019/05/08 13:05

Sample crash report:
INFO: task syz-executor190:5860 blocked for more than 143 seconds.
      Not tainted 6.13.0-rc3-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor190 state:D stack:27920 pid:5860  tgid:5845  ppid:5841   flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x17fb/0x4be0 kernel/sched/core.c:6756
 __schedule_loop kernel/sched/core.c:6833 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6848
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905
 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:818 [inline]
 open_last_lookups fs/namei.c:3745 [inline]
 path_openat+0x89a/0x3590 fs/namei.c:3984
 do_filp_open+0x27f/0x4e0 fs/namei.c:4014
 do_sys_openat2+0x13e/0x1d0 fs/open.c:1402
 do_sys_open fs/open.c:1417 [inline]
 __do_sys_openat fs/open.c:1433 [inline]
 __se_sys_openat fs/open.c:1428 [inline]
 __x64_sys_openat+0x247/0x2a0 fs/open.c:1428
 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: 0033:0x7f38b9113bc9
RSP: 002b:00007f38b90a9218 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f38b91a56b8 RCX: 00007f38b9113bc9
RDX: 000000000000275a RSI: 0000000020000040 RDI: 00000000ffffff9c
RBP: 00007f38b91a56b0 R08: 00007ffd5e2d1847 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f38b91a56bc
R13: 00007f38b91680c0 R14: 746174732e757063 R15: 0031656c69662f2e
 </TASK>
INFO: task syz-executor190:5858 blocked for more than 144 seconds.
      Not tainted 6.13.0-rc3-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor190 state:D stack:27920 pid:5858  tgid:5846  ppid:5840   flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x17fb/0x4be0 kernel/sched/core.c:6756
 __schedule_loop kernel/sched/core.c:6833 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6848
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905
 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:818 [inline]
 open_last_lookups fs/namei.c:3745 [inline]
 path_openat+0x89a/0x3590 fs/namei.c:3984
 do_filp_open+0x27f/0x4e0 fs/namei.c:4014
 do_sys_openat2+0x13e/0x1d0 fs/open.c:1402
 do_sys_open fs/open.c:1417 [inline]
 __do_sys_openat fs/open.c:1433 [inline]
 __se_sys_openat fs/open.c:1428 [inline]
 __x64_sys_openat+0x247/0x2a0 fs/open.c:1428
 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: 0033:0x7f38b9113bc9
RSP: 002b:00007f38b90a9218 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f38b91a56b8 RCX: 00007f38b9113bc9
RDX: 000000000000275a RSI: 0000000020000040 RDI: 00000000ffffff9c
RBP: 00007f38b91a56b0 R08: 00007ffd5e2d1847 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f38b91a56bc
R13: 00007f38b91680c0 R14: 746174732e757063 R15: 0031656c69662f2e
 </TASK>
INFO: task syz-executor190:5857 blocked for more than 145 seconds.
      Not tainted 6.13.0-rc3-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor190 state:D stack:27288 pid:5857  tgid:5848  ppid:5844   flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x17fb/0x4be0 kernel/sched/core.c:6756
 __schedule_loop kernel/sched/core.c:6833 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6848
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905
 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:818 [inline]
 open_last_lookups fs/namei.c:3745 [inline]
 path_openat+0x89a/0x3590 fs/namei.c:3984
 do_filp_open+0x27f/0x4e0 fs/namei.c:4014
 do_sys_openat2+0x13e/0x1d0 fs/open.c:1402
 do_sys_open fs/open.c:1417 [inline]
 __do_sys_openat fs/open.c:1433 [inline]
 __se_sys_openat fs/open.c:1428 [inline]
 __x64_sys_openat+0x247/0x2a0 fs/open.c:1428
 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: 0033:0x7f38b9113bc9
RSP: 002b:00007f38b90a9218 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f38b91a56b8 RCX: 00007f38b9113bc9
RDX: 000000000000275a RSI: 0000000020000040 RDI: 00000000ffffff9c
RBP: 00007f38b91a56b0 R08: 00007ffd5e2d1847 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f38b91a56bc
R13: 00007f38b91680c0 R14: 746174732e757063 R15: 0031656c69662f2e
 </TASK>
INFO: task syz-executor190:5859 blocked for more than 146 seconds.
      Not tainted 6.13.0-rc3-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor190 state:D stack:27920 pid:5859  tgid:5850  ppid:5842   flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x17fb/0x4be0 kernel/sched/core.c:6756
 __schedule_loop kernel/sched/core.c:6833 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6848
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905
 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:818 [inline]
 open_last_lookups fs/namei.c:3745 [inline]
 path_openat+0x89a/0x3590 fs/namei.c:3984
 do_filp_open+0x27f/0x4e0 fs/namei.c:4014
 do_sys_openat2+0x13e/0x1d0 fs/open.c:1402
 do_sys_open fs/open.c:1417 [inline]
 __do_sys_openat fs/open.c:1433 [inline]
 __se_sys_openat fs/open.c:1428 [inline]
 __x64_sys_openat+0x247/0x2a0 fs/open.c:1428
 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: 0033:0x7f38b9113bc9
RSP: 002b:00007f38b90a9218 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f38b91a56b8 RCX: 00007f38b9113bc9
RDX: 000000000000275a RSI: 0000000020000040 RDI: 00000000ffffff9c
RBP: 00007f38b91a56b0 R08: 00007ffd5e2d1847 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f38b91a56bc
R13: 00007f38b91680c0 R14: 746174732e757063 R15: 0031656c69662f2e
 </TASK>
INFO: task syz-executor190:5861 blocked for more than 147 seconds.
      Not tainted 6.13.0-rc3-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor190 state:D stack:27920 pid:5861  tgid:5851  ppid:5843   flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x17fb/0x4be0 kernel/sched/core.c:6756
 __schedule_loop kernel/sched/core.c:6833 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6848
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905
 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:818 [inline]
 open_last_lookups fs/namei.c:3745 [inline]
 path_openat+0x89a/0x3590 fs/namei.c:3984
 do_filp_open+0x27f/0x4e0 fs/namei.c:4014
 do_sys_openat2+0x13e/0x1d0 fs/open.c:1402
 do_sys_open fs/open.c:1417 [inline]
 __do_sys_openat fs/open.c:1433 [inline]
 __se_sys_openat fs/open.c:1428 [inline]
 __x64_sys_openat+0x247/0x2a0 fs/open.c:1428
 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: 0033:0x7f38b9113bc9
RSP: 002b:00007f38b90a9218 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f38b91a56b8 RCX: 00007f38b9113bc9
RDX: 000000000000275a RSI: 0000000020000040 RDI: 00000000ffffff9c
RBP: 00007f38b91a56b0 R08: 00007ffd5e2d1847 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f38b91a56bc
R13: 00007f38b91680c0 R14: 746174732e757063 R15: 0031656c69662f2e
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/30:
 #0: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
 #0: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #0: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6744
1 lock held by kswapd0/88:
2 locks held by getty/5586:
 #0: ffff88802ffa00a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
 #1: ffffc90002fde2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x6a6/0x1e00 drivers/tty/n_tty.c:2211
3 locks held by syz-executor190/5854:
1 lock held by syz-executor190/5860:
 #0: ffff888076d7d140 (&type->i_mutex_dir_key#6){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:818 [inline]
 #0: ffff888076d7d140 (&type->i_mutex_dir_key#6){+.+.}-{4:4}, at: open_last_lookups fs/namei.c:3745 [inline]
 #0: ffff888076d7d140 (&type->i_mutex_dir_key#6){+.+.}-{4:4}, at: path_openat+0x89a/0x3590 fs/namei.c:3984
1 lock held by syz-executor190/5849:
1 lock held by syz-executor190/5858:
 #0: ffff888076d7c6c0 (&type->i_mutex_dir_key#6){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:818 [inline]
 #0: ffff888076d7c6c0 (&type->i_mutex_dir_key#6){+.+.}-{4:4}, at: open_last_lookups fs/namei.c:3745 [inline]
 #0: ffff888076d7c6c0 (&type->i_mutex_dir_key#6){+.+.}-{4:4}, at: path_openat+0x89a/0x3590 fs/namei.c:3984
1 lock held by syz-executor190/5852:
1 lock held by syz-executor190/5857:
 #0: ffff888076d7c180 (&type->i_mutex_dir_key#6){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:818 [inline]
 #0: ffff888076d7c180 (&type->i_mutex_dir_key#6){+.+.}-{4:4}, at: open_last_lookups fs/namei.c:3745 [inline]
 #0: ffff888076d7c180 (&type->i_mutex_dir_key#6){+.+.}-{4:4}, at: path_openat+0x89a/0x3590 fs/namei.c:3984
1 lock held by syz-executor190/5855:
1 lock held by syz-executor190/5859:
 #0: ffff888076d7cc00 (&type->i_mutex_dir_key#6){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:818 [inline]
 #0: ffff888076d7cc00 (&type->i_mutex_dir_key#6){+.+.}-{4:4}, at: open_last_lookups fs/namei.c:3745 [inline]
 #0: ffff888076d7cc00 (&type->i_mutex_dir_key#6){+.+.}-{4:4}, at: path_openat+0x89a/0x3590 fs/namei.c:3984
1 lock held by syz-executor190/5853:
1 lock held by syz-executor190/5861:
 #0: ffff888076d54180 (&type->i_mutex_dir_key#6){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:818 [inline]
 #0: ffff888076d54180 (&type->i_mutex_dir_key#6){+.+.}-{4:4}, at: open_last_lookups fs/namei.c:3745 [inline]
 #0: ffff888076d54180 (&type->i_mutex_dir_key#6){+.+.}-{4:4}, at: path_openat+0x89a/0x3590 fs/namei.c:3984

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

NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.13.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024
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:234 [inline]
 watchdog+0xff6/0x1040 kernel/hung_task.c:397
 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: 5852 Comm: syz-executor190 Not tainted 6.13.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024
RIP: 0010:clear_page_erms+0xb/0x20 arch/x86/lib/clear_page_64.S:50
Code: 48 8d 7f 40 75 d9 90 c3 cc cc cc cc 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa b9 00 10 00 00 31 c0 <f3> aa c3 cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 90
RSP: 0018:ffffc90003c77190 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000340
RDX: ffff88805596d000 RSI: 0000000000000001 RDI: ffff88805596dcc0
RBP: 0000000000000004 R08: ffffea0001565b77 R09: 0000000000000000
R10: ffffed100ab2da00 R11: fffff940002acb6f R12: 0000000000000001
R13: 0000000000000001 R14: ffffea0001565b40 R15: 0000000000000000
FS:  00007f38b90ca6c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005635dcab2680 CR3: 000000007cf14000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 clear_page arch/x86/include/asm/page_64.h:54 [inline]
 clear_highpage_kasan_tagged include/linux/highmem.h:242 [inline]
 kernel_init_pages mm/page_alloc.c:1040 [inline]
 post_alloc_hook+0xf8/0x230 mm/page_alloc.c:1554
 prep_new_page mm/page_alloc.c:1564 [inline]
 get_page_from_freelist+0x3651/0x37a0 mm/page_alloc.c:3474
 __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4751
 alloc_pages_mpol_noprof+0x3e8/0x680 mm/mempolicy.c:2269
 alloc_pages_noprof mm/mempolicy.c:2348 [inline]
 folio_alloc_noprof+0x128/0x180 mm/mempolicy.c:2355
 filemap_alloc_folio_noprof+0xdf/0x500 mm/filemap.c:1009
 do_read_cache_folio+0x2fd/0x5b0 mm/filemap.c:3788
 read_mapping_folio include/linux/pagemap.h:1011 [inline]
 dir_get_folio fs/sysv/dir.c:64 [inline]
 sysv_find_entry+0x16c/0x590 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:3627 [inline]
 open_last_lookups fs/namei.c:3748 [inline]
 path_openat+0x11a7/0x3590 fs/namei.c:3984
 do_filp_open+0x27f/0x4e0 fs/namei.c:4014
 do_sys_openat2+0x13e/0x1d0 fs/open.c:1402
 do_sys_open fs/open.c:1417 [inline]
 __do_sys_openat fs/open.c:1433 [inline]
 __se_sys_openat fs/open.c:1428 [inline]
 __x64_sys_openat+0x247/0x2a0 fs/open.c:1428
 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: 0033:0x7f38b9113bc9
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:00007f38b90ca218 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f38b91a56a8 RCX: 00007f38b9113bc9
RDX: 0000000000103042 RSI: 0000000020000100 RDI: 00000000ffffff9c
RBP: 00007f38b91a56a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f38b91a56ac
R13: 00007f38b91680c0 R14: 746174732e757063 R15: 0031656c69662f2e
 </TASK>
INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.682 msecs

Crashes (4173):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/12/16 16:39 upstream 78d4f34e2115 eec85da6 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-upstream-fs INFO: task hung in path_openat
2024/11/11 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
2025/01/14 13:24 upstream c45323b7560e b1f1cd88 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2025/01/13 18:50 upstream 5bc55a333a2f 249ceea9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2025/01/13 08:15 upstream be548645527a 6dbc6a9b .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2025/01/13 00:05 upstream be548645527a 6dbc6a9b .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2025/01/10 05:47 upstream 643e2e259c2b 67d7ec0a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2025/01/09 17:38 upstream eea6e4b4dfb8 9220929f .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2025/01/08 11:58 upstream 09a0fa92e5b4 f3558dbf .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2025/01/07 22:49 upstream fbfd64d25c7a f3558dbf .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2025/01/07 17:51 upstream fbfd64d25c7a f3558dbf .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2025/01/07 00:12 upstream 5428dc1906dd f3558dbf .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in path_openat
2025/01/06 18:36 upstream 5428dc1906dd f3558dbf .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2025/01/04 22:27 upstream ab75170520d4 f3558dbf .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2025/01/04 15:28 upstream 63676eefb7a0 f3558dbf .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2025/01/04 07:15 upstream 63676eefb7a0 f3558dbf .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in path_openat
2025/01/03 23:41 upstream 0bc21e701a6f f3558dbf .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2025/01/03 21:11 upstream 0bc21e701a6f f3558dbf .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in path_openat
2025/01/01 14:29 upstream ccb98ccef0e5 d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2025/01/01 09:07 upstream ccb98ccef0e5 d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2025/01/01 02:23 upstream ccb98ccef0e5 d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in path_openat
2025/01/01 01:12 upstream ccb98ccef0e5 d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in path_openat
2024/12/31 21:40 upstream ccb98ccef0e5 d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in path_openat
2024/12/31 09:47 upstream ccb98ccef0e5 d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/12/28 21:25 upstream fd0584d220fe d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in path_openat
2024/12/28 05:46 upstream 8379578b11d5 d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/12/27 22:14 upstream 8379578b11d5 d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/12/27 11:27 upstream d6ef8b40d075 d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/12/24 21:50 upstream 9b2ffa6148b1 444551c4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in path_openat
2024/12/24 13:45 upstream f07044dd0df0 444551c4 .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
2025/01/06 23:01 linux-next 8155b4ef3466 f3558dbf .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: task hung in path_openat
2025/01/05 17:22 linux-next 8155b4ef3466 f3558dbf .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: task hung in path_openat
2025/01/03 02:45 linux-next 8155b4ef3466 d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: task hung in path_openat
2025/01/02 11:45 linux-next 8155b4ef3466 d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: task hung in path_openat
2025/01/02 08:39 linux-next 8155b4ef3466 d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: task hung in path_openat
2025/01/02 05:04 linux-next 8155b4ef3466 d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: task hung in path_openat
2025/01/01 12:51 linux-next 8155b4ef3466 d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: task hung in path_openat
2024/12/30 05:22 linux-next 8155b4ef3466 d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: task hung in path_openat
2024/12/29 11:16 linux-next 8155b4ef3466 d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: task hung in path_openat
2024/12/28 15:58 linux-next 8155b4ef3466 d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: task hung in path_openat
2024/12/28 07:28 linux-next 8155b4ef3466 d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: task hung in path_openat
2024/12/28 03:52 linux-next 8155b4ef3466 d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: task hung in path_openat
2024/12/26 05:07 linux-next 8155b4ef3466 444551c4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: task hung in path_openat
2024/12/25 15:58 linux-next 8155b4ef3466 444551c4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: task hung in path_openat
2024/12/25 12:54 linux-next 8155b4ef3466 444551c4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: task hung in path_openat
2024/12/25 08:01 linux-next 8155b4ef3466 444551c4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: task hung in path_openat
2024/12/24 15:42 linux-next 8155b4ef3466 444551c4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: task hung in path_openat
2024/12/24 00:21 linux-next 8155b4ef3466 444551c4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: task hung in path_openat
2024/12/12 09:00 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 2e7aff49b5da ff949d25 .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.