INFO: task syz-executor.2:7729 blocked for more than 143 seconds.
      Not tainted 6.0.0-syzkaller-09589-g55be6084c8e0 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2  state:D stack:27568 pid:7729  ppid:3633   flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5178 [inline]
 __schedule+0xadf/0x5270 kernel/sched/core.c:6490
 schedule+0xda/0x1b0 kernel/sched/core.c:6566
 schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1911
 do_wait_for_common kernel/sched/completion.c:85 [inline]
 __wait_for_common+0x1ca/0x5c0 kernel/sched/completion.c:106
 __flush_work+0x58d/0xae0 kernel/workqueue.c:3073
 __cancel_work_timer+0x3f9/0x570 kernel/workqueue.c:3160
 p9_conn_destroy net/9p/trans_fd.c:890 [inline]
 p9_fd_close+0x328/0x580 net/9p/trans_fd.c:920
 p9_client_destroy+0xbe/0x370 net/9p/client.c:1018
 v9fs_session_init+0x1003/0x1810 fs/9p/v9fs.c:488
 v9fs_mount+0xba/0xc90 fs/9p/vfs_super.c:126
 legacy_get_tree+0x105/0x220 fs/fs_context.c:610
 vfs_get_tree+0x89/0x2f0 fs/super.c:1530
 do_new_mount fs/namespace.c:3040 [inline]
 path_mount+0x1326/0x1e20 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: 0033:0x7f6abf68b5a9
RSP: 002b:00007f6abe5dd168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f6abf7ac050 RCX: 00007f6abf68b5a9
RDX: 0000000020000040 RSI: 0000000020000180 RDI: 0000000000000000
RBP: 00007f6abf6e6580 R08: 0000000020000300 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc30ce9a6f R14: 00007f6abe5dd300 R15: 0000000000022000
 </TASK>
INFO: lockdep is turned off.
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.0.0-syzkaller-09589-g55be6084c8e0 #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+0x46/0x14f lib/nmi_backtrace.c:111
 nmi_trigger_cpumask_backtrace+0x206/0x250 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+0xbf9/0xf30 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: 2961 Comm: klogd Not tainted 6.0.0-syzkaller-09589-g55be6084c8e0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
RIP: 0010:lock_release+0x57/0x780 kernel/locking/lockdep.c:5676
Code: b3 8a b5 41 48 c1 ed 03 48 c7 44 24 18 20 78 84 8b 48 01 e8 48 c7 44 24 20 20 f4 5d 81 c7 00 f1 f1 f1 f1 c7 40 04 f1 f1 04 f2 <c7> 40 08 04 f3 f3 f3 65 48 8b 04 25 28 00 00 00 48 89 84 24 88 00
RSP: 0018:ffffc900034779a8 EFLAGS: 00000082
RAX: fffff5200068ef37 RBX: ffff8880b9a3ad98 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8151b780 RDI: ffff8880b9a3a058
RBP: 1ffff9200068ef37 R08: ffff8880b9a3ab10 R09: ffffffff8151b600
R10: fffffbfff1bc0392 R11: 0000000000000001 R12: ffff8880b9a3a058
R13: ffff888020642100 R14: ffff888018660840 R15: ffff8880b9a3aa78
FS:  00007f02d1f41800(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffc89e1f548 CR3: 000000007d0c4000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __raw_spin_unlock include/linux/spinlock_api_smp.h:141 [inline]
 _raw_spin_unlock+0x12/0x40 kernel/locking/spinlock.c:186
 raw_spin_rq_unlock_irq kernel/sched/sched.h:1351 [inline]
 finish_lock_switch kernel/sched/core.c:4938 [inline]
 finish_task_switch.isra.0+0x2b0/0xc70 kernel/sched/core.c:5056
 context_switch kernel/sched/core.c:5181 [inline]
 __schedule+0xae7/0x5270 kernel/sched/core.c:6490
 schedule+0xda/0x1b0 kernel/sched/core.c:6566
 syslog_print+0x1c2/0x580 kernel/printk/printk.c:1529
 do_syslog.part.0+0x1db/0x5f0 kernel/printk/printk.c:1682
 do_syslog kernel/printk/printk.c:1772 [inline]
 __do_sys_syslog kernel/printk/printk.c:1774 [inline]
 __se_sys_syslog kernel/printk/printk.c:1772 [inline]
 __x64_sys_syslog+0x97/0xc0 kernel/printk/printk.c:1772
 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: 0033:0x7f02d20dc8b7
Code: 73 01 c3 48 8b 0d c1 05 0c 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 67 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 91 05 0c 00 f7 d8 64 89 01 48
RSP: 002b:00007fffbdc5e378 EFLAGS: 00000206 ORIG_RAX: 0000000000000067
RAX: ffffffffffffffda RBX: 00007f02d2269490 RCX: 00007f02d20dc8b7
RDX: 00000000000003ff RSI: 00007f02d2269490 RDI: 0000000000000002
RBP: 0000000000000000 R08: 0000000000000007 R09: 0000561eec489d80
R10: 0000000000004000 R11: 0000000000000206 R12: 00007f02d2269490
R13: 00007f02d226950f R14: 00007f02d226950f R15: 0000000000000000
 </TASK>