INFO: task segctord:21288 blocked for more than 143 seconds.
      Not tainted 6.0.0-next-20221017-syzkaller-13375-g77d8bf70fac0 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:segctord        state:D stack:29784 pid:21288 ppid:2      flags:0x00004000
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
 nilfs_transaction_lock+0x266/0x410 fs/nilfs2/segment.c:357
 nilfs_segctor_thread_construct fs/nilfs2/segment.c:2486 [inline]
 nilfs_segctor_thread+0x3b8/0xf30 fs/nilfs2/segment.c:2570
 kthread+0x2e4/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
INFO: task segctord:21497 blocked for more than 143 seconds.
      Not tainted 6.0.0-next-20221017-syzkaller-13375-g77d8bf70fac0 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:segctord        state:D stack:29784 pid:21497 ppid:2      flags:0x00004000
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
 nilfs_transaction_lock+0x266/0x410 fs/nilfs2/segment.c:357
 nilfs_segctor_thread_construct fs/nilfs2/segment.c:2486 [inline]
 nilfs_segctor_thread+0x3b8/0xf30 fs/nilfs2/segment.c:2570
 kthread+0x2e4/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
INFO: lockdep is turned off.
NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.0.0-next-20221017-syzkaller-13375-g77d8bf70fac0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
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 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 3643 Comm: syz-executor.2 Not tainted 6.0.0-next-20221017-syzkaller-13375-g77d8bf70fac0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
RIP: 0010:task_cpu include/linux/sched.h:2239 [inline]
RIP: 0010:cpuacct_charge+0x0/0x3d0 kernel/sched/cpuacct.c:336
Code: c4 02 75 0c e8 11 17 ff ff e8 8c 15 26 00 fb c3 e8 35 14 26 00 eb ed 0f 1f 00 65 8b 3d 41 2d a5 7e e9 74 4b ff ff 0f 1f 40 00 <48> b8 00 00 00 00 00 fc ff df 41 57 41 56 49 89 f6 41 55 41 54 55
RSP: 0018:ffffc90003e6f9f0 EFLAGS: 00000082
RAX: 0000000000000001 RBX: ffff88801f248080 RCX: ffffffff81575545
RDX: dffffc0000000000 RSI: 0000000000278268 RDI: ffff88801f248000
RBP: ffff888087b00c00 R08: 0000000000000000 R09: ffffffff8de21957
R10: fffffbfff1bc432a R11: ffff8880b9b3acd8 R12: 0000000000278268
R13: 0000000000000003 R14: 0000000000000001 R15: ffff88801f248000
FS:  00005555566e5400(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007efc43dad0b0 CR3: 000000001d44d000 CR4: 00000000003506e0
Call Trace:
 <TASK>
 cgroup_account_cputime include/linux/cgroup.h:791 [inline]
 update_curr+0x3ae/0x8c0 kernel/sched/fair.c:915
 dequeue_entity+0x55/0x1170 kernel/sched/fair.c:4696
 dequeue_task_fair+0x273/0xfc0 kernel/sched/fair.c:6015
 dequeue_task kernel/sched/core.c:2080 [inline]
 deactivate_task kernel/sched/core.c:2094 [inline]
 __schedule+0x1299/0x53f0 kernel/sched/core.c:6457
 schedule+0xda/0x1b0 kernel/sched/core.c:6579
 do_nanosleep+0x154/0x4f0 kernel/time/hrtimer.c:2044
 hrtimer_nanosleep+0x1f9/0x4a0 kernel/time/hrtimer.c:2097
 common_nsleep+0xa2/0xc0 kernel/time/posix-timers.c:1236
 __do_sys_clock_nanosleep kernel/time/posix-timers.c:1276 [inline]
 __se_sys_clock_nanosleep kernel/time/posix-timers.c:1254 [inline]
 __x64_sys_clock_nanosleep+0x2f4/0x430 kernel/time/posix-timers.c:1254
 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: 0033:0x7f92366b02d1
Code: 24 0c 89 3c 24 48 89 4c 24 18 e8 aa e7 ff ff 4c 8b 54 24 18 48 8b 54 24 10 41 89 c0 8b 74 24 0c 8b 3c 24 b8 e6 00 00 00 0f 05 <44> 89 c7 48 89 04 24 e8 e3 e7 ff ff 48 8b 04 24 eb 97 66 2e 0f 1f
RSP: 002b:00007ffc3e0112c0 EFLAGS: 00000293 ORIG_RAX: 00000000000000e6
RAX: ffffffffffffffda RBX: 0000000000001298 RCX: 00007f92366b02d1
RDX: 00007ffc3e011300 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007ffc3e01138c R08: 0000000000000000 R09: 00007ffc3e0b0080
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000032
R13: 00000000001aebf1 R14: 0000000000000003 R15: 00007ffc3e0113f0
 </TASK>