INFO: task hung in lock_mount

Status: fixed on 2023/06/08 14:41
Subsystems: nilfs
[Documentation on labels]
Reported-by: syzbot+221d75710bde87fa0e97@syzkaller.appspotmail.com
Fix commit: a6a491c04888 nilfs2: fix infinite loop in nilfs_mdt_get_block()
First crash: 3039d, last: 1212d
Cause bisection: failed (error log, bisect log)
  
Fix bisection: failed (error log, bisect log)
  
▶ ▼ Duplicate bugs (1)
Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
INFO: task can't die in lock_mount fs 1 syz, C 75 1726d 2063d 0/29 closed as dup on 2021/01/18 10:01
▶ ▼ Discussions (4)
Title Replies (including bot) Last reply
[PATCH] nilfs2: fix infinite loop in nilfs_mdt_get_block() 1 (1) 2023/04/30 19:30
INFO: task hung in lock_mount 3 (5) 2023/04/30 08:56
[syzbot] Monthly nilfs report (Apr 2023) 0 (1) 2023/04/27 10:39
[syzbot] Monthly nilfs report 0 (1) 2023/03/27 11:03
▶ ▼ Similar bugs (10)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.19 INFO: task hung in lock_mount (4) 1 6 1732d 1847d 0/1 auto-closed as invalid on 2022/03/15 09:18
android-49 INFO: task hung in lock_mount 1 syz, C 103 2564d 2681d 0/3 public: reported C repro on 2019/04/11 08:44
linux-5.15 INFO: task hung in lock_mount origin:upstream missing-backport 1 syz, C done 1 840d 840d 0/3 auto-obsoleted due to no activity on 2025/02/27 09:39
linux-4.19 INFO: task hung in lock_mount 1 5 2408d 2538d 0/1 auto-closed as invalid on 2020/05/09 01:51
linux-4.19 INFO: task hung in lock_mount (2) 1 2 2245d 2251d 0/1 auto-closed as invalid on 2020/10/18 21:28
android-44 INFO: task hung in lock_mount 1 syz, C 4 2961d 2680d 0/2 public: reported C repro on 2019/04/13 00:00
linux-4.19 INFO: task hung in lock_mount (3) 1 1 2011d 2011d 0/1 auto-closed as invalid on 2021/06/09 16:09
linux-4.14 INFO: task hung in lock_mount 1 2 2440d 2440d 0/1 auto-closed as invalid on 2020/04/07 06:26
upstream INFO: task can't die in lock_mount fs 1 syz, C 75 1726d 2063d 0/29 closed as dup on 2021/01/18 10:01
upstream INFO: task can't die in iget5_locked fuse 1 7 1996d 2020d 20/29 fixed on 2021/04/09 19:46
▶ ▼ Last patch testing requests (5)
Created Duration User Patch Repo Result
2022/10/04 21:30 16m retest repro upstream log
2022/10/03 02:30 16m retest repro upstream no crash log
2022/10/03 01:30 10m retest repro upstream error
2022/09/22 17:29 22m retest repro https://github.com/google/kmsan.git master no crash log
2022/09/11 23:27 19m retest repro upstream no crash log

Sample crash report:
INFO: task syz-executor424:3615 blocked for more than 143 seconds.
      Not tainted 6.1.0-rc4-syzkaller-00015-gf141df371335 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor424 state:D stack:25024 pid:3615  ppid:3607   flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5191 [inline]
 __schedule+0xae9/0x53f0 kernel/sched/core.c:6503
 schedule+0xda/0x1b0 kernel/sched/core.c:6579
 rwsem_down_write_slowpath+0x5fc/0x12d0 kernel/locking/rwsem.c:1190
 __down_write_common kernel/locking/rwsem.c:1305 [inline]
 __down_write_common kernel/locking/rwsem.c:1302 [inline]
 __down_write kernel/locking/rwsem.c:1314 [inline]
 down_write+0x1e4/0x220 kernel/locking/rwsem.c:1563
 inode_lock include/linux/fs.h:756 [inline]
 lock_mount+0x8a/0x2e0 fs/namespace.c:2292
 do_new_mount_fc fs/namespace.c:2983 [inline]
 do_new_mount fs/namespace.c:3042 [inline]
 path_mount+0x14c4/0x1e20 fs/namespace.c:3370
 do_mount fs/namespace.c:3383 [inline]
 __do_sys_mount fs/namespace.c:3591 [inline]
 __se_sys_mount fs/namespace.c:3568 [inline]
 __x64_sys_mount+0x27f/0x300 fs/namespace.c:3568
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f0d59b4093a
RSP: 002b:00007fff667a6238 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f0d59b4093a
RDX: 00000000200000c0 RSI: 0000000020000100 RDI: 00007fff667a6250
RBP: 00007fff667a6250 R08: 00007fff667a6290 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000004
R13: 00007fff667a6290 R14: 0000000000000039 R15: 0000000020000758
 </TASK>
INFO: task syz-executor424:3617 blocked for more than 143 seconds.
      Not tainted 6.1.0-rc4-syzkaller-00015-gf141df371335 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor424 state:D stack:25024 pid:3617  ppid:3610   flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5191 [inline]
 __schedule+0xae9/0x53f0 kernel/sched/core.c:6503
 schedule+0xda/0x1b0 kernel/sched/core.c:6579
 rwsem_down_write_slowpath+0x5fc/0x12d0 kernel/locking/rwsem.c:1190
 __down_write_common kernel/locking/rwsem.c:1305 [inline]
 __down_write_common kernel/locking/rwsem.c:1302 [inline]
 __down_write kernel/locking/rwsem.c:1314 [inline]
 down_write+0x1e4/0x220 kernel/locking/rwsem.c:1563
 inode_lock include/linux/fs.h:756 [inline]
 lock_mount+0x8a/0x2e0 fs/namespace.c:2292
 do_new_mount_fc fs/namespace.c:2983 [inline]
 do_new_mount fs/namespace.c:3042 [inline]
 path_mount+0x14c4/0x1e20 fs/namespace.c:3370
 do_mount fs/namespace.c:3383 [inline]
 __do_sys_mount fs/namespace.c:3591 [inline]
 __se_sys_mount fs/namespace.c:3568 [inline]
 __x64_sys_mount+0x27f/0x300 fs/namespace.c:3568
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f0d59b4093a
RSP: 002b:00007fff667a6238 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f0d59b4093a
RDX: 00000000200000c0 RSI: 0000000020000100 RDI: 00007fff667a6250
RBP: 00007fff667a6250 R08: 00007fff667a6290 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000004
R13: 00007fff667a6290 R14: 0000000000000039 R15: 0000000020000758
 </TASK>
INFO: task syz-executor424:3618 blocked for more than 144 seconds.
      Not tainted 6.1.0-rc4-syzkaller-00015-gf141df371335 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor424 state:D stack:25024 pid:3618  ppid:3611   flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5191 [inline]
 __schedule+0xae9/0x53f0 kernel/sched/core.c:6503
 schedule+0xda/0x1b0 kernel/sched/core.c:6579
 rwsem_down_write_slowpath+0x5fc/0x12d0 kernel/locking/rwsem.c:1190
 __down_write_common kernel/locking/rwsem.c:1305 [inline]
 __down_write_common kernel/locking/rwsem.c:1302 [inline]
 __down_write kernel/locking/rwsem.c:1314 [inline]
 down_write+0x1e4/0x220 kernel/locking/rwsem.c:1563
 inode_lock include/linux/fs.h:756 [inline]
 lock_mount+0x8a/0x2e0 fs/namespace.c:2292
 do_new_mount_fc fs/namespace.c:2983 [inline]
 do_new_mount fs/namespace.c:3042 [inline]
 path_mount+0x14c4/0x1e20 fs/namespace.c:3370
 do_mount fs/namespace.c:3383 [inline]
 __do_sys_mount fs/namespace.c:3591 [inline]
 __se_sys_mount fs/namespace.c:3568 [inline]
 __x64_sys_mount+0x27f/0x300 fs/namespace.c:3568
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f0d59b4093a
RSP: 002b:00007fff667a6238 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f0d59b4093a
RDX: 00000000200000c0 RSI: 0000000020000100 RDI: 00007fff667a6250
RBP: 00007fff667a6250 R08: 00007fff667a6290 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000004
R13: 00007fff667a6290 R14: 0000000000000039 R15: 0000000020000758
 </TASK>
INFO: task syz-executor424:3619 blocked for more than 144 seconds.
      Not tainted 6.1.0-rc4-syzkaller-00015-gf141df371335 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor424 state:D stack:25024 pid:3619  ppid:3614   flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5191 [inline]
 __schedule+0xae9/0x53f0 kernel/sched/core.c:6503
 schedule+0xda/0x1b0 kernel/sched/core.c:6579
 rwsem_down_write_slowpath+0x5fc/0x12d0 kernel/locking/rwsem.c:1190
 __down_write_common kernel/locking/rwsem.c:1305 [inline]
 __down_write_common kernel/locking/rwsem.c:1302 [inline]
 __down_write kernel/locking/rwsem.c:1314 [inline]
 down_write+0x1e4/0x220 kernel/locking/rwsem.c:1563
 inode_lock include/linux/fs.h:756 [inline]
 lock_mount+0x8a/0x2e0 fs/namespace.c:2292
 do_new_mount_fc fs/namespace.c:2983 [inline]
 do_new_mount fs/namespace.c:3042 [inline]
 path_mount+0x14c4/0x1e20 fs/namespace.c:3370
 do_mount fs/namespace.c:3383 [inline]
 __do_sys_mount fs/namespace.c:3591 [inline]
 __se_sys_mount fs/namespace.c:3568 [inline]
 __x64_sys_mount+0x27f/0x300 fs/namespace.c:3568
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f0d59b4093a
RSP: 002b:00007fff667a6238 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f0d59b4093a
RDX: 00000000200000c0 RSI: 0000000020000100 RDI: 00007fff667a6250
RBP: 00007fff667a6250 R08: 00007fff667a6290 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000004
R13: 00007fff667a6290 R14: 0000000000000039 R15: 0000000020000758
 </TASK>

Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
 #0: ffffffff8bf87f70 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70 kernel/rcu/tasks.h:507
1 lock held by rcu_tasks_trace/13:
 #0: ffffffff8bf87c70 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70 kernel/rcu/tasks.h:507
1 lock held by khungtaskd/27:
 #0: ffffffff8bf88ac0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6494
2 locks held by getty/3286:
 #0: ffff888026fcb098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:244
 #1: ffffc900031262f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xef0/0x13e0 drivers/tty/n_tty.c:2177
6 locks held by syz-executor424/3613:
1 lock held by syz-executor424/3615:
 #0: ffff8880718c2f80 (&type->i_mutex_dir_key#6){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
 #0: ffff8880718c2f80 (&type->i_mutex_dir_key#6){+.+.}-{3:3}, at: lock_mount+0x8a/0x2e0 fs/namespace.c:2292
6 locks held by syz-executor424/3616:
1 lock held by syz-executor424/3617:
 #0: ffff8880718c2f80 (&type->i_mutex_dir_key#6){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
 #0: ffff8880718c2f80 (&type->i_mutex_dir_key#6){+.+.}-{3:3}, at: lock_mount+0x8a/0x2e0 fs/namespace.c:2292
1 lock held by syz-executor424/3618:
 #0: ffff8880718c2f80 (&type->i_mutex_dir_key#6){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
 #0: ffff8880718c2f80 (&type->i_mutex_dir_key#6){+.+.}-{3:3}, at: lock_mount+0x8a/0x2e0 fs/namespace.c:2292
1 lock held by syz-executor424/3619:
 #0: ffff8880718c2f80 (&type->i_mutex_dir_key#6){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
 #0: ffff8880718c2f80 (&type->i_mutex_dir_key#6){+.+.}-{3:3}, at: lock_mount+0x8a/0x2e0 fs/namespace.c:2292

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

NMI backtrace for cpu 1
CPU: 1 PID: 27 Comm: khungtaskd Not tainted 6.1.0-rc4-syzkaller-00015-gf141df371335 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
 nmi_cpu_backtrace.cold+0x24/0x18a lib/nmi_backtrace.c:111
 nmi_trigger_cpumask_backtrace+0x32f/0x3c0 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline]
 watchdog+0xc71/0xfc0 kernel/hung_task.c:377
 kthread+0x2e4/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 3613 Comm: syz-executor424 Not tainted 6.1.0-rc4-syzkaller-00015-gf141df371335 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:29 [inline]
RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:70 [inline]
RIP: 0010:arch_local_irq_save arch/x86/include/asm/irqflags.h:106 [inline]
RIP: 0010:lock_is_held_type+0x51/0x140 kernel/locking/lockdep.c:5707
Code: 73 76 85 c0 0f 85 ca 00 00 00 65 4c 8b 24 25 80 6f 02 00 41 8b 94 24 4c 0a 00 00 85 d2 0f 85 b1 00 00 00 48 89 fd 41 89 f6 9c <8f> 04 24 fa 48 c7 c7 60 a5 ec 89 31 db e8 3d 15 00 00 41 8b 84 24
RSP: 0018:ffffc90003b9ec98 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffffc90003b9edb0 RCX: 0000000000000001
RDX: 0000000000000000 RSI: 00000000ffffffff RDI: ffffffff8bf88ac0
RBP: ffffffff8bf88ac0 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff888020708000
R13: 00000000ffffffff R14: 00000000ffffffff R15: 0000000000000000
FS:  0000555556c43300(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055a95b364990 CR3: 0000000076ea0000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 xa_entry include/linux/xarray.h:1198 [inline]
 xas_descend+0x2a4/0x440 lib/xarray.c:204
 xas_load+0xe5/0x140 lib/xarray.c:242
 mapping_get_entry mm/filemap.c:1853 [inline]
 __filemap_get_folio+0x14e/0xd90 mm/filemap.c:1915
 pagecache_get_page+0x2e/0x280 mm/folio-compat.c:110
 find_or_create_page include/linux/pagemap.h:613 [inline]
 grab_cache_page include/linux/pagemap.h:743 [inline]
 nilfs_grab_buffer+0xc5/0x680 fs/nilfs2/page.c:57
 nilfs_mdt_submit_block+0xa4/0xb40 fs/nilfs2/mdt.c:121
 nilfs_mdt_read_block+0x92/0x3c0 fs/nilfs2/mdt.c:176
 nilfs_mdt_get_block+0xe3/0xe00 fs/nilfs2/mdt.c:251
 nilfs_palloc_get_block+0xc4/0x2b0 fs/nilfs2/alloc.c:216
 nilfs_palloc_get_entry_block+0x167/0x1d0 fs/nilfs2/alloc.c:318
 nilfs_dat_translate+0x7e/0x470 fs/nilfs2/dat.c:391
 nilfs_bmap_lookup_at_level+0x237/0x3e0 fs/nilfs2/bmap.c:75
 nilfs_bmap_lookup fs/nilfs2/bmap.h:170 [inline]
 nilfs_mdt_submit_block+0x1a1/0xb40 fs/nilfs2/mdt.c:142
 nilfs_mdt_read_block+0x92/0x3c0 fs/nilfs2/mdt.c:176
 nilfs_mdt_get_block+0xe3/0xe00 fs/nilfs2/mdt.c:251
 nilfs_palloc_get_block+0xc4/0x2b0 fs/nilfs2/alloc.c:216
 nilfs_palloc_get_entry_block+0x167/0x1d0 fs/nilfs2/alloc.c:318
 nilfs_ifile_create_inode+0xec/0x260 fs/nilfs2/ifile.c:66
 nilfs_new_inode+0x1ff/0x9b0 fs/nilfs2/inode.c:347
 nilfs_create fs/nilfs2/namei.c:85 [inline]
 nilfs_create+0xfe/0x300 fs/nilfs2/namei.c:75
 lookup_open.isra.0+0xf05/0x12a0 fs/namei.c:3413
 open_last_lookups fs/namei.c:3481 [inline]
 path_openat+0x996/0x2860 fs/namei.c:3710
 do_filp_open+0x1b6/0x400 fs/namei.c:3740
 do_sys_openat2+0x16d/0x4c0 fs/open.c:1310
 do_sys_open fs/open.c:1326 [inline]
 __do_sys_openat fs/open.c:1342 [inline]
 __se_sys_openat fs/open.c:1337 [inline]
 __x64_sys_openat+0x13f/0x1f0 fs/open.c:1337
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f0d59b3f509
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 c0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fff667a63c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00000000000f4240 RCX: 00007f0d59b3f509
RDX: 000000000000275a RSI: 0000000020000140 RDI: 00000000ffffff9c
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f0d59afe6b0
R13: 00007fff667a63f0 R14: 00007fff667a63dc R15: 00007fff667a63e0
 </TASK>
INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.477 msecs

Crashes (1238):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2022/11/09 15:34 upstream f141df371335 5fa28208 .config strace log report syz C [mounted in repro] ci-upstream-kasan-gce-root INFO: task hung in lock_mount
2021/10/16 01:39 upstream ec681c53f8d2 0c5d9412 .config console log report syz C ci-upstream-kasan-gce-smack-root INFO: task hung in lock_mount
2018/05/23 19:12 upstream a048a07d7f45 f48c20b8 .config console log report syz C ci-upstream-kasan-gce-root
2018/06/18 05:27 upstream ce397d215ccd 27c5f59f .config console log report syz C ci-upstream-kasan-gce-386
2018/08/19 06:02 https://github.com/google/kmsan.git master 0cc51dc9a291 de20bcbb .config console log report syz C ci-upstream-kmsan-gce
2021/02/08 11:11 upstream b75dba7f472c 2ce644fc .config console log report syz ci-upstream-kasan-gce-root INFO: task hung in lock_mount
2023/04/19 11:05 upstream af67688dca57 94b4184e .config console log report info ci-upstream-kasan-gce-root INFO: task hung in lock_mount
2023/04/09 05:04 upstream a79d5c76f705 71147e29 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in lock_mount
2023/01/09 14:29 upstream 1fe4fd6f5cad 1dac8c7a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in lock_mount
2021/12/05 01:18 upstream bbef3c7a63d2 a617004c .config console log report info ci-upstream-kasan-gce-root INFO: task hung in lock_mount
2021/12/02 19:46 upstream 58e1100fdc59 61f86278 .config console log report info ci-upstream-kasan-gce-root INFO: task hung in lock_mount
2021/11/18 08:25 upstream ee1703cda8dc cafff8b6 .config console log report info ci-upstream-kasan-gce-root INFO: task hung in lock_mount
2021/11/14 07:19 upstream ccfff0a2bd2a 83f5c9b5 .config console log report info ci-upstream-kasan-gce-root INFO: task hung in lock_mount
2021/11/09 07:23 upstream e851dfae4371 8ab17e57 .config console log report info ci-upstream-kasan-gce-smack-root INFO: task hung in lock_mount
2021/11/06 04:14 upstream d4439a1189f9 4c1be0be .config console log report info ci-upstream-kasan-gce-root INFO: task hung in lock_mount
2021/08/31 01:40 upstream 7d2a07b76933 8f58a0ef .config console log report info ci-upstream-kasan-gce-root INFO: task hung in lock_mount
2021/03/16 02:06 upstream 1e28eed17697 fdb2bb2c .config console log report info ci-upstream-kasan-gce-root INFO: task hung in lock_mount
2021/03/15 19:46 upstream 1e28eed17697 fdb2bb2c .config console log report info ci-upstream-kasan-gce-root INFO: task hung in lock_mount
2021/03/15 03:23 upstream 75013c6c52d8 cc1cff8f .config console log report info ci-upstream-kasan-gce-root INFO: task hung in lock_mount
2021/03/14 11:03 upstream 88fe49249c99 4a003785 .config console log report info ci-upstream-kasan-gce-root INFO: task hung in lock_mount
2021/03/14 04:41 upstream 88fe49249c99 4a003785 .config console log report info ci-upstream-kasan-gce-root INFO: task hung in lock_mount
2021/03/13 14:37 upstream f296bfd5cd04 4a003785 .config console log report info ci-upstream-kasan-gce-root INFO: task hung in lock_mount
2021/03/12 09:22 upstream 28806e4d9b97 429d8a6b .config console log report info ci-upstream-kasan-gce-root INFO: task hung in lock_mount
2021/03/12 01:13 upstream 28806e4d9b97 429d8a6b .config console log report info ci-upstream-kasan-gce-root INFO: task hung in lock_mount
2021/03/11 14:53 upstream a74e6a014c9d c2ca1f2a .config console log report info ci-upstream-kasan-gce-root INFO: task hung in lock_mount
2021/03/11 01:55 upstream 05a59d79793d 764067f3 .config console log report info ci-upstream-kasan-gce-root INFO: task hung in lock_mount
2021/03/10 11:18 upstream 144c79ef3353 26967e35 .config console log report info ci-upstream-kasan-gce-root INFO: task hung in lock_mount
2021/03/09 18:21 upstream 144c79ef3353 09fbf400 .config console log report info ci-upstream-kasan-gce-selinux-root INFO: task hung in lock_mount
2021/03/09 08:32 upstream 144c79ef3353 09fbf400 .config console log report info ci-upstream-kasan-gce-root INFO: task hung in lock_mount
2021/03/08 21:38 upstream 144c79ef3353 09fbf400 .config console log report info ci-upstream-kasan-gce INFO: task hung in lock_mount
2021/03/07 22:28 upstream a38fd8748464 75506d9c .config console log report info ci-upstream-kasan-gce-root INFO: task hung in lock_mount
2021/03/07 22:28 upstream a38fd8748464 75506d9c .config console log report info ci-upstream-kasan-gce-root INFO: task hung in lock_mount
2021/03/07 20:29 upstream a38fd8748464 75506d9c .config console log report info ci-upstream-kasan-gce-root INFO: task hung in lock_mount
2021/03/05 17:08 upstream 280d542f6ffa 9d751681 .config console log report info ci-upstream-kasan-gce-root INFO: task hung in lock_mount
2021/03/05 15:01 upstream 280d542f6ffa 9d751681 .config console log report info ci-upstream-kasan-gce INFO: task hung in lock_mount
2021/03/05 10:29 upstream cee407c5cc42 9d751681 .config console log report info ci-upstream-kasan-gce-selinux-root INFO: task hung in lock_mount
2021/03/05 09:22 upstream cee407c5cc42 9d751681 .config console log report info ci-upstream-kasan-gce INFO: task hung in lock_mount
2021/03/05 09:01 upstream cee407c5cc42 9d751681 .config console log report info ci-upstream-kasan-gce-root INFO: task hung in lock_mount
2021/03/04 18:35 upstream f69d02e37a85 d7e4e604 .config console log report info ci-upstream-kasan-gce-selinux-root INFO: task hung in lock_mount
2021/03/04 01:56 upstream f69d02e37a85 06ed56cd .config console log report info ci-upstream-kasan-gce-selinux-root INFO: task hung in lock_mount
2021/03/03 23:41 upstream f69d02e37a85 06ed56cd .config console log report info ci-upstream-kasan-gce-smack-root INFO: task hung in lock_mount
2021/03/03 18:48 upstream f69d02e37a85 06ed56cd .config console log report info ci-upstream-kasan-gce INFO: task hung in lock_mount
2021/03/03 08:02 upstream 7a7fd0de4a98 e5b64d68 .config console log report info ci-upstream-kasan-gce INFO: task hung in lock_mount
2021/03/02 20:37 upstream 7a7fd0de4a98 92ead296 .config console log report info ci-upstream-kasan-gce-selinux-root INFO: task hung in lock_mount
2021/03/02 05:46 upstream fe07bfda2fb9 183afb6c .config console log report info ci-upstream-kasan-gce INFO: task hung in lock_mount
2021/02/28 00:17 upstream 5695e5161974 4c37c133 .config console log report info ci-upstream-kasan-gce-root INFO: task hung in lock_mount
2021/02/25 04:01 upstream 719bbd4a509f fcc6d71b .config console log report info ci-upstream-kasan-gce-smack-root INFO: task hung in lock_mount
2021/02/25 01:02 upstream 719bbd4a509f fcc6d71b .config console log report info ci-upstream-kasan-gce INFO: task hung in lock_mount
2021/02/24 23:18 upstream c03c21ba6f4e fcc6d71b .config console log report info ci-upstream-kasan-gce-root INFO: task hung in lock_mount
2021/02/24 15:04 upstream c03c21ba6f4e fcc6d71b .config console log report info ci-upstream-kasan-gce-selinux-root INFO: task hung in lock_mount
2021/03/05 16:07 upstream 280d542f6ffa 9d751681 .config console log report info ci-upstream-kasan-gce-386 INFO: task hung in lock_mount
2021/03/05 12:30 upstream 280d542f6ffa 9d751681 .config console log report info ci-upstream-kasan-gce-386 INFO: task hung in lock_mount
2021/03/03 21:09 upstream f69d02e37a85 06ed56cd .config console log report info ci-upstream-kasan-gce-386 INFO: task hung in lock_mount
2021/03/03 08:00 upstream 7a7fd0de4a98 e5b64d68 .config console log report info ci-upstream-kasan-gce-386 INFO: task hung in lock_mount
2021/02/25 02:52 upstream 719bbd4a509f fcc6d71b .config console log report info ci-upstream-kasan-gce-386 INFO: task hung in lock_mount
2021/02/23 07:49 upstream a99163e9e708 c26fb06b .config console log report info ci-upstream-kasan-gce-386 INFO: task hung in lock_mount
2021/02/07 06:25 upstream 825b5991a46e 0655e081 .config console log report info ci-qemu2-arm64-compat INFO: task hung in lock_mount
2023/03/24 13:53 linux-next e5dbf24e8b9e f94b4a29 .config console log report info ci-upstream-linux-next-kasan-gce-root INFO: task hung in lock_mount
2022/12/16 06:23 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci a5541c0811a0 6f9c033e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in lock_mount
2021/01/16 15:04 upstream 1d94330a437a 65a7a854 .config console log report info ci-upstream-kasan-gce-selinux-root
2018/04/18 16:23 upstream a27fc14219f2 52643b44 .config console log report ci-upstream-kasan-gce-root
2019/10/19 17:12 linux-next c4b9850b3676 8c88c9c1 .config console log report ci-upstream-linux-next-kasan-gce-root
* Struck through repros no longer work on HEAD.