INFO: task syz-executor167:5116 blocked for more than 143 seconds.
      Not tainted 6.5.0-next-20230831-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor167 state:D stack:29120 pid:5116  ppid:5076   flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5382 [inline]
 __schedule+0xee1/0x59f0 kernel/sched/core.c:6695
 schedule+0xe7/0x1b0 kernel/sched/core.c:6771
 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6830
 __mutex_lock_common kernel/locking/mutex.c:679 [inline]
 __mutex_lock+0x967/0x1340 kernel/locking/mutex.c:747
 blkdev_put+0xb0/0x8e0 block/bdev.c:884
 blkdev_release+0x82/0xa0 block/fops.c:604
 __fput+0x3f7/0xa70 fs/file_table.c:384
 task_work_run+0x14d/0x240 kernel/task_work.c:179
 get_signal+0x106f/0x27b0 kernel/signal.c:2668
 arch_do_signal_or_restart+0x90/0x7f0 arch/x86/kernel/signal.c:309
 exit_to_user_mode_loop kernel/entry/common.c:168 [inline]
 exit_to_user_mode_prepare+0x11f/0x240 kernel/entry/common.c:204
 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
 syscall_exit_to_user_mode+0x1d/0x60 kernel/entry/common.c:296
 do_syscall_64+0x44/0xb0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f960bd0f4b9
RSP: 002b:00007f960bccd228 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: 0000000000000000 RBX: 00007f960bd96328 RCX: 00007f960bd0f4b9
RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000003
RBP: 00007f960bd96320 R08: 00007f960bccd6c0 R09: 00007f960bccd6c0
R10: 00007f960bccd6c0 R11: 0000000000000246 R12: 00007f960bd9632c
R13: 00007f960bd631a4 R14: 64626e2f7665642f R15: 00007ffe0e181da8
 </TASK>
INFO: lockdep is turned off.
NMI backtrace for cpu 0
CPU: 0 PID: 29 Comm: khungtaskd Not tainted 6.5.0-next-20230831-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106
 nmi_cpu_backtrace+0x277/0x380 lib/nmi_backtrace.c:113
 nmi_trigger_cpumask_backtrace+0x299/0x300 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
 watchdog+0xfac/0x1230 kernel/hung_task.c:379
 kthread+0x33a/0x430 kernel/kthread.c:388
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 48 Comm: kworker/u4:3 Not tainted 6.5.0-next-20230831-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
Workqueue:  0x0 (events_unbound)
RIP: 0010:update_sd_lb_stats.constprop.0+0x1db/0x3f80 kernel/sched/fair.c:10294
Code: 87 2d 16 00 00 48 89 d8 be 08 00 00 00 4c 89 54 24 10 48 c1 e8 06 44 89 4c 24 08 48 8d 7c c5 00 e8 3a fb 7c 00 48 0f a3 5d 00 <49> b8 00 00 00 00 00 fc ff df 44 8b 4c 24 08 0f 92 84 24 a6 00 00
RSP: 0018:ffffc90000b8f508 EFLAGS: 00000046
RAX: 0000000000000001 RBX: 0000000000000001 RCX: ffffffff8160ab86
RDX: ffffed1002f4c306 RSI: 0000000000000008 RDI: ffff888017a61828
RBP: ffff888017a61828 R08: 0000000000000000 R09: ffffed1002f4c305
R10: ffff888017a6182f R11: 0000000000000000 R12: 0000000000000000
R13: ffffc90000b8f758 R14: 0000000000000001 R15: 000000000000006e
FS:  0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000562e4c3fd780 CR3: 000000000c976000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 find_busiest_group+0x93/0xc80 kernel/sched/fair.c:10573
 load_balance+0x4ee/0x3130 kernel/sched/fair.c:11006
 newidle_balance+0x710/0x1210 kernel/sched/fair.c:12059
 pick_next_task_fair+0x87/0x1200 kernel/sched/fair.c:8234
 __pick_next_task kernel/sched/core.c:6004 [inline]
 pick_next_task kernel/sched/core.c:6079 [inline]
 __schedule+0x493/0x59f0 kernel/sched/core.c:6659
 schedule+0xe7/0x1b0 kernel/sched/core.c:6771
 worker_thread+0x2e3/0x1290 kernel/workqueue.c:2799
 kthread+0x33a/0x430 kernel/kthread.c:388
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
 </TASK>
INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 2.099 msecs