9pnet_fd: Insufficient options for proto=fd
INFO: task syz-executor.6:5532 blocked for more than 143 seconds.
      Not tainted 6.0.0-rc3-next-20220829 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.6  state:D stack:27240 pid:5532  ppid:553    flags:0x00004004
Call Trace:
 <TASK>
 __schedule+0x893/0x24a0
 schedule+0xda/0x1b0
 schedule_timeout+0x3ad/0x480
 __wait_for_common+0x1c3/0x4c0
 __flush_work+0x6c3/0xd00
 __cancel_work_timer+0x39c/0x4e0
 p9_fd_close+0x238/0x500
 p9_client_destroy+0xc3/0x370
 v9fs_session_close+0x41/0x1c0
 v9fs_kill_super+0x49/0x90
 deactivate_locked_super+0x99/0x160
 v9fs_mount+0x742/0xbd0
 legacy_get_tree+0x105/0x220
 vfs_get_tree+0x8e/0x300
 path_mount+0x1310/0x1e20
 __x64_sys_mount+0x282/0x300
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fdebd43cb19
RSP: 002b:00007fdeba9b2188 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fdebd54ff60 RCX: 00007fdebd43cb19
RDX: 0000000020000040 RSI: 0000000020000000 RDI: 0000000020100900
RBP: 00007fdebd496f6d R08: 0000000020000240 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd9845af6f R14: 00007fdeba9b2300 R15: 0000000000022000
 </TASK>

Showing all threads with locks held in the system:
task:rcu_tasks_kthre state:I stack:29264 pid:11    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 __schedule+0x893/0x24a0
 schedule+0xda/0x1b0
 rcu_tasks_one_gp+0x3db/0xc10
 rcu_tasks_kthread+0x80/0xa0
 kthread+0x2ed/0x3a0
 ret_from_fork+0x22/0x30
 </TASK>
1 lock held by rcu_tasks_kthre/11:
 #0: ffffffff85404c10 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc10
task:kworker/0:3     state:S stack:27800 pid:84    ppid:2      flags:0x00004000
Workqueue: events p9_read_work
Call Trace:
 <TASK>
 __schedule+0x893/0x24a0
 schedule+0xda/0x1b0
 pipe_read+0xa15/0xfc0
 __kernel_read+0x2cb/0x7d0
 kernel_read+0xbf/0x1c0
 p9_read_work+0x2ac/0x1010
 process_one_work+0xa0f/0x1690
 worker_thread+0x637/0x1260
 kthread+0x2ed/0x3a0
 ret_from_fork+0x22/0x30
 </TASK>
2 locks held by kworker/0:3/84:
 #0: ffff888007c58d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x90d/0x1690
 #1: ffff8880100efdb0 ((work_completion)(&m->rq)){+.+.}-{0:0}, at: process_one_work+0x941/0x1690
task:in:imklog       state:R  running task     stack:28152 pid:193   ppid:1      flags:0x00004000
Call Trace:
 <TASK>
 </TASK>
1 lock held by in:imklog/193:

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