INFO: task syz-executor.5:3644 blocked for more than 143 seconds.
      Not tainted 6.1.0-rc2-syzkaller-00105-gb229b6ca5abb #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5  state:D stack:21976 pid:3644  ppid:1      flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5191 [inline]
 __schedule+0x8c9/0xd70 kernel/sched/core.c:6503
 schedule+0xcb/0x190 kernel/sched/core.c:6579
 rwsem_down_read_slowpath+0x5f9/0x930 kernel/locking/rwsem.c:1095
 __down_read_common+0x54/0x2a0 kernel/locking/rwsem.c:1260
 __gfs2_trans_begin+0x4e4/0x8c0 fs/gfs2/trans.c:87
 gfs2_trans_begin+0x6d/0xe0 fs/gfs2/trans.c:118
 gfs2_write_jdata_pagevec+0x100/0xe20 fs/gfs2/aops.c:220
 gfs2_write_cache_jdata+0x46d/0x7b0 fs/gfs2/aops.c:349
 gfs2_jdata_writepages+0x81/0x150 fs/gfs2/aops.c:391
 do_writepages+0x3c3/0x680 mm/page-writeback.c:2469
 filemap_fdatawrite_wbc+0x11e/0x170 mm/filemap.c:388
 gfs2_ail1_start_one fs/gfs2/log.c:134 [inline]
 gfs2_ail1_flush+0xbc3/0xeb0 fs/gfs2/log.c:214
 gfs2_ail1_start fs/gfs2/log.c:245 [inline]
 empty_ail1_list+0x17f/0x260 fs/gfs2/log.c:977
 gfs2_log_flush+0x212a/0x26a0 fs/gfs2/log.c:1122
 gfs2_kill_sb+0x50/0xd0 fs/gfs2/ops_fstype.c:1732
 deactivate_locked_super+0xa7/0xf0 fs/super.c:331
 cleanup_mnt+0x494/0x520 fs/namespace.c:1186
 task_work_run+0x243/0x300 kernel/task_work.c:179
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop+0x124/0x150 kernel/entry/common.c:171
 exit_to_user_mode_prepare+0xb2/0x140 kernel/entry/common.c:203
 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
 syscall_exit_to_user_mode+0x26/0x60 kernel/entry/common.c:296
 do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fc45ce8ca17
RSP: 002b:00007fff99823648 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fc45ce8ca17
RDX: 00007fff9982371c RSI: 000000000000000a RDI: 00007fff99823710
RBP: 00007fff99823710 R08: 00000000ffffffff R09: 00007fff998234e0
R10: 00005555555eb8b3 R11: 0000000000000246 R12: 00007fc45cee5826
R13: 00007fff998247d0 R14: 00005555555eb810 R15: 00007fff99824810
 </TASK>
INFO: task kworker/u4:28:12642 blocked for more than 144 seconds.
      Not tainted 6.1.0-rc2-syzkaller-00105-gb229b6ca5abb #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u4:28   state:D stack:21656 pid:12642 ppid:2      flags:0x00004000
Workqueue: events_unbound io_ring_exit_work
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5191 [inline]
 __schedule+0x8c9/0xd70 kernel/sched/core.c:6503
 schedule+0xcb/0x190 kernel/sched/core.c:6579
 schedule_timeout+0x98/0x2f0 kernel/time/timer.c:1911
 do_wait_for_common+0x3ea/0x560 kernel/sched/completion.c:85
 __wait_for_common kernel/sched/completion.c:106 [inline]
 wait_for_common kernel/sched/completion.c:117 [inline]
 wait_for_completion+0x46/0x60 kernel/sched/completion.c:138
 io_ring_exit_work+0x655/0x738 io_uring/io_uring.c:2782
 process_one_work+0x877/0xdb0 kernel/workqueue.c:2289
 worker_thread+0xb14/0x1330 kernel/workqueue.c:2436
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
INFO: task syz-executor.0:6850 blocked for more than 144 seconds.
      Not tainted 6.1.0-rc2-syzkaller-00105-gb229b6ca5abb #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0  state:D stack:27128 pid:6850  ppid:3643   flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5191 [inline]
 __schedule+0x8c9/0xd70 kernel/sched/core.c:6503
 schedule+0xcb/0x190 kernel/sched/core.c:6579
 rwsem_down_read_slowpath+0x5f9/0x930 kernel/locking/rwsem.c:1095
 __down_read_common+0x54/0x2a0 kernel/locking/rwsem.c:1260
 iterate_supers+0xb0/0x1f0 fs/super.c:721
 ksys_sync+0xb7/0x1c0 fs/sync.c:102
 __do_sys_sync+0xa/0x10 fs/sync.c:113
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f680468b5a9
RSP: 002b:00007f68053cf168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2
RAX: ffffffffffffffda RBX: 00007f68047abf80 RCX: 00007f680468b5a9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f68046e67b0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe64cfca4f R14: 00007f68053cf300 R15: 0000000000022000
 </TASK>
INFO: task syz-executor.0:6856 blocked for more than 144 seconds.
      Not tainted 6.1.0-rc2-syzkaller-00105-gb229b6ca5abb #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0  state:D stack:29432 pid:6856  ppid:3643   flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5191 [inline]
 __schedule+0x8c9/0xd70 kernel/sched/core.c:6503
 schedule+0xcb/0x190 kernel/sched/core.c:6579
 rwsem_down_read_slowpath+0x5f9/0x930 kernel/locking/rwsem.c:1095
 __down_read_common+0x54/0x2a0 kernel/locking/rwsem.c:1260
 iterate_supers+0xb0/0x1f0 fs/super.c:721
 ksys_sync+0xb7/0x1c0 fs/sync.c:102
 __do_sys_sync+0xa/0x10 fs/sync.c:113
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f680468b5a9
RSP: 002b:00007f68053ae168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2
RAX: ffffffffffffffda RBX: 00007f68047ac050 RCX: 00007f680468b5a9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f68046e67b0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe64cfca4f R14: 00007f68053ae300 R15: 0000000000022000
 </TASK>
INFO: task syz-executor.0:6858 blocked for more than 144 seconds.
      Not tainted 6.1.0-rc2-syzkaller-00105-gb229b6ca5abb #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0  state:D stack:29432 pid:6858  ppid:3643   flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5191 [inline]
 __schedule+0x8c9/0xd70 kernel/sched/core.c:6503
 schedule+0xcb/0x190 kernel/sched/core.c:6579
 rwsem_down_read_slowpath+0x5f9/0x930 kernel/locking/rwsem.c:1095
 __down_read_common+0x54/0x2a0 kernel/locking/rwsem.c:1260
 iterate_supers+0xb0/0x1f0 fs/super.c:721
 ksys_sync+0xb7/0x1c0 fs/sync.c:102
 __do_sys_sync+0xa/0x10 fs/sync.c:113
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f680468b5a9
RSP: 002b:00007f680538d168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2
RAX: ffffffffffffffda RBX: 00007f68047ac120 RCX: 00007f680468b5a9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f68046e67b0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe64cfca4f R14: 00007f680538d300 R15: 0000000000022000
 </TASK>
INFO: task syz-executor.2:6875 blocked for more than 144 seconds.
      Not tainted 6.1.0-rc2-syzkaller-00105-gb229b6ca5abb #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2  state:D stack:29720 pid:6875  ppid:29864  flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5191 [inline]
 __schedule+0x8c9/0xd70 kernel/sched/core.c:6503
 schedule+0xcb/0x190 kernel/sched/core.c:6579
 rwsem_down_read_slowpath+0x5f9/0x930 kernel/locking/rwsem.c:1095
 __down_read_common+0x54/0x2a0 kernel/locking/rwsem.c:1260
 iterate_supers+0xb0/0x1f0 fs/super.c:721
 ksys_sync+0xb7/0x1c0 fs/sync.c:102
 __do_sys_sync+0xa/0x10 fs/sync.c:113
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f4e93e8b5a9
RSP: 002b:00007f4e94b80168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2
RAX: ffffffffffffffda RBX: 00007f4e93fac050 RCX: 00007f4e93e8b5a9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f4e93ee67b0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc3f53d49f R14: 00007f4e94b80300 R15: 0000000000022000
 </TASK>
INFO: task syz-executor.2:6879 blocked for more than 145 seconds.
      Not tainted 6.1.0-rc2-syzkaller-00105-gb229b6ca5abb #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2  state:D stack:29720 pid:6879  ppid:29864  flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5191 [inline]
 __schedule+0x8c9/0xd70 kernel/sched/core.c:6503
 schedule+0xcb/0x190 kernel/sched/core.c:6579
 rwsem_down_read_slowpath+0x5f9/0x930 kernel/locking/rwsem.c:1095
 __down_read_common+0x54/0x2a0 kernel/locking/rwsem.c:1260
 iterate_supers+0xb0/0x1f0 fs/super.c:721
 ksys_sync+0xb7/0x1c0 fs/sync.c:102
 __do_sys_sync+0xa/0x10 fs/sync.c:113
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f4e93e8b5a9
RSP: 002b:00007f4e94b5f168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2
RAX: ffffffffffffffda RBX: 00007f4e93fac120 RCX: 00007f4e93e8b5a9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f4e93ee67b0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc3f53d49f R14: 00007f4e94b5f300 R15: 0000000000022000
 </TASK>
INFO: task syz-executor.2:6885 blocked for more than 145 seconds.
      Not tainted 6.1.0-rc2-syzkaller-00105-gb229b6ca5abb #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2  state:D stack:29720 pid:6885  ppid:29864  flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5191 [inline]
 __schedule+0x8c9/0xd70 kernel/sched/core.c:6503
 schedule+0xcb/0x190 kernel/sched/core.c:6579
 rwsem_down_read_slowpath+0x5f9/0x930 kernel/locking/rwsem.c:1095
 __down_read_common+0x54/0x2a0 kernel/locking/rwsem.c:1260
 iterate_supers+0xb0/0x1f0 fs/super.c:721
 ksys_sync+0xb7/0x1c0 fs/sync.c:102
 __do_sys_sync+0xa/0x10 fs/sync.c:113
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f4e93e8b5a9
RSP: 002b:00007f4e94b3e168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2
RAX: ffffffffffffffda RBX: 00007f4e93fac1f0 RCX: 00007f4e93e8b5a9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f4e93ee67b0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc3f53d49f R14: 00007f4e94b3e300 R15: 0000000000022000
 </TASK>
INFO: task syz-executor.1:6904 blocked for more than 145 seconds.
      Not tainted 6.1.0-rc2-syzkaller-00105-gb229b6ca5abb #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1  state:D stack:26264 pid:6904  ppid:3642   flags:0x00024004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5191 [inline]
 __schedule+0x8c9/0xd70 kernel/sched/core.c:6503
 schedule+0xcb/0x190 kernel/sched/core.c:6579
 rwsem_down_read_slowpath+0x5f9/0x930 kernel/locking/rwsem.c:1095
 __down_read_common+0x54/0x2a0 kernel/locking/rwsem.c:1260
 iterate_supers+0xb0/0x1f0 fs/super.c:721
 ksys_sync+0xb7/0x1c0 fs/sync.c:102
 __do_sys_sync+0xa/0x10 fs/sync.c:113
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f930d88b5a9
RSP: 002b:00007f930e64a168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2
RAX: ffffffffffffffda RBX: 00007f930d9abf80 RCX: 00007f930d88b5a9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f930d8e67b0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffdaff7c39f R14: 00007f930e64a300 R15: 0000000000022000
 </TASK>
INFO: task syz-executor.1:6905 blocked for more than 145 seconds.
      Not tainted 6.1.0-rc2-syzkaller-00105-gb229b6ca5abb #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1  state:D stack:29432 pid:6905  ppid:3642   flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5191 [inline]
 __schedule+0x8c9/0xd70 kernel/sched/core.c:6503
 schedule+0xcb/0x190 kernel/sched/core.c:6579
 rwsem_down_read_slowpath+0x5f9/0x930 kernel/locking/rwsem.c:1095
 __down_read_common+0x54/0x2a0 kernel/locking/rwsem.c:1260
 iterate_supers+0xb0/0x1f0 fs/super.c:721
 ksys_sync+0xb7/0x1c0 fs/sync.c:102
 __do_sys_sync+0xa/0x10 fs/sync.c:113
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f930d88b5a9
RSP: 002b:00007f930e629168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2
RAX: ffffffffffffffda RBX: 00007f930d9ac050 RCX: 00007f930d88b5a9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f930d8e67b0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffdaff7c39f R14: 00007f930e629300 R15: 0000000000022000
 </TASK>
INFO: lockdep is turned off.
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.1.0-rc2-syzkaller-00105-gb229b6ca5abb #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1b1/0x28e lib/dump_stack.c:106
 nmi_cpu_backtrace+0x46f/0x4f0 lib/nmi_backtrace.c:111
 nmi_trigger_cpumask_backtrace+0x1ba/0x420 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+0xcf5/0xd40 kernel/hung_task.c:377
 kthread+0x266/0x300 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: 35 Comm: khugepaged Not tainted 6.1.0-rc2-syzkaller-00105-gb229b6ca5abb #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022
RIP: 0010:hpage_collapse_test_exit mm/khugepaged.c:413 [inline]
RIP: 0010:khugepaged_scan_mm_slot+0x537/0xf60 mm/khugepaged.c:2251
Code: c0 48 89 df be 04 00 00 00 e8 75 67 fa ff 48 8b 44 24 58 42 8a 04 30 84 c0 0f 85 e9 05 00 00 8b 1b 31 ff 89 de e8 39 71 a6 ff <85> db 0f 84 db 08 00 00 4c 89 ac 24 b8 00 00 00 4c 89 bc 24 b0 00
RSP: 0018:ffffc90000ac7b40 EFLAGS: 00000293
RAX: 1ffff1100e502200 RBX: 000000000000000f RCX: 0000000000000000
RDX: ffff88801784d7c0 RSI: 000000000000000f RDI: 0000000000000000
RBP: ffffc90000ac7cf0 R08: ffffffff81e162c7 R09: ffffed100e5022ca
R10: ffffed100e5022ca R11: 1ffff1100e5022c9 R12: 000000c010a00000
R13: 1ffff92000158f90 R14: dffffc0000000000 R15: 000000000000042f
FS:  0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000ac128c CR3: 0000000026c9a000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 khugepaged_do_scan+0x19b/0x3a0 mm/khugepaged.c:2375
 khugepaged+0xf5/0x560 mm/khugepaged.c:2431
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>