INFO: task syz-executor.3:32360 blocked for more than 143 seconds.
      Not tainted 6.0.0-rc6-next-20220923-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3  state:D stack:28408 pid:32360 ppid:3650   flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5194 [inline]
 __schedule+0xbd2/0x55b0 kernel/sched/core.c:6506
 schedule+0xda/0x1b0 kernel/sched/core.c:6582
 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:891 [inline]
 p9_fd_close+0x328/0x580 net/9p/trans_fd.c:921
 p9_client_destroy+0xbe/0x370 net/9p/client.c:1040
 p9_client_create+0x728/0xf20 net/9p/client.c:1027
 v9fs_session_init+0x1e2/0x1810 fs/9p/v9fs.c:408
 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: 0033:0x7fde7388b5a9
RSP: 002b:00007fde74998168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fde739ac050 RCX: 00007fde7388b5a9
RDX: 0000000020000040 RSI: 0000000020000180 RDI: 0000000000000000
RBP: 00007fde738e6580 R08: 0000000020000300 R09: 0000000000000000
R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc7d32dacf R14: 00007fde74998300 R15: 0000000000022000
 </TASK>
INFO: lockdep is turned off.
NMI backtrace for cpu 0
CPU: 0 PID: 29 Comm: khungtaskd Not tainted 6.0.0-rc6-next-20220923-syzkaller #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:212 [inline]
 watchdog+0xc6b/0xfc0 kernel/hung_task.c:369
 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: 3647 Comm: syz-executor.5 Not tainted 6.0.0-rc6-next-20220923-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
RIP: 0010:do_nanosleep+0xba/0x4f0 kernel/time/hrtimer.c:2040
Code: 80 6f 02 00 48 89 44 24 20 48 05 e0 16 00 00 48 89 44 24 08 48 c1 e8 03 4c 01 e8 48 89 44 24 18 e8 8b f5 ec f7 48 8b 44 24 18 <80> 38 00 0f 85 bd 03 00 00 48 8b 44 24 20 be 04 00 00 00 65 4c 8b
RSP: 0018:ffffc900045afc90 EFLAGS: 00000293
RAX: ffffed1003706dd4 RBX: ffffc900045afd98 RCX: 0000000000000000
RDX: ffff88801b8357c0 RSI: ffffffff898f9e75 RDI: ffffc900045afd98
RBP: ffffc900045afd50 R08: 0000000000000006 R09: 000000000000c350
R10: 0000000000100590 R11: 0000000000000001 R12: 0000000000000001
R13: dffffc0000000000 R14: ffffc900045afdd8 R15: 000000000000c350
FS:  0000555556697400(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe80be9f3c8 CR3: 000000003fcf3000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 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: 0033:0x7f4c9b2b02d1
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:00007ffc09492fd0 EFLAGS: 00000293 ORIG_RAX: 00000000000000e6
RAX: ffffffffffffffda RBX: 00000000000025b5 RCX: 00007f4c9b2b02d1
RDX: 00007ffc09493010 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007ffc0949309c R08: 0000000000000000 R09: 00007ffc0956e080
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000032
R13: 0000000000126978 R14: 0000000000000013 R15: 00007ffc09493100
 </TASK>