9pnet: Insufficient options for proto=fd
9pnet: Insufficient options for proto=fd
INFO: task syz-executor.2:4628 blocked for more than 143 seconds.
      Not tainted 5.10.170 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2  state:D stack:27952 pid: 4628 ppid:   282 flags:0x00000004
Call Trace:
 context_switch kernel/sched/core.c:3797 [inline]
 __schedule+0x848/0x1ed0 kernel/sched/core.c:4545
 schedule+0xcb/0x270 kernel/sched/core.c:4623
 schedule_preempt_disabled+0xc/0x20 kernel/sched/core.c:4682
 __mutex_lock_common kernel/locking/mutex.c:1047 [inline]
 __mutex_lock+0x8e3/0x12a0 kernel/locking/mutex.c:1109
 perf_event_init_context kernel/events/core.c:12906 [inline]
 perf_event_init_task+0x25a/0x800 kernel/events/core.c:12981
 copy_process+0x180b/0x67d0 kernel/fork.c:2089
 kernel_clone+0xe7/0xa30 kernel/fork.c:2498
 __do_sys_clone+0xc8/0x110 kernel/fork.c:2615
 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xc6
RIP: 0033:0x7f2ae09c3f41
RSP: 002b:00007fffcf7884f8 EFLAGS: 00000206 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007f2addef6700 RCX: 00007f2ae09c3f41
RDX: 00007f2addef69d0 RSI: 00007f2addef62f0 RDI: 00000000003d0f00
RBP: 00007fffcf788730 R08: 00007f2addef6700 R09: 00007f2addef6700
R10: 00007f2addef69d0 R11: 0000000000000206 R12: 00007fffcf7885ae
R13: 00007fffcf7885af R14: 00007f2addef6300 R15: 0000000000022000
INFO: task syz-executor.2:4663 blocked for more than 143 seconds.
      Not tainted 5.10.170 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2  state:D stack:29232 pid: 4663 ppid:   282 flags:0x00004004
Call Trace:
 context_switch kernel/sched/core.c:3797 [inline]
 __schedule+0x848/0x1ed0 kernel/sched/core.c:4545
 schedule+0xcb/0x270 kernel/sched/core.c:4623
 schedule_preempt_disabled+0xc/0x20 kernel/sched/core.c:4682
 __mutex_lock_common kernel/locking/mutex.c:1047 [inline]
 __mutex_lock+0x8e3/0x12a0 kernel/locking/mutex.c:1109
 mutex_lock_double kernel/events/core.c:11598 [inline]
 __perf_event_ctx_lock_double kernel/events/core.c:11742 [inline]
 __do_sys_perf_event_open+0x1248/0x2cb0 kernel/events/core.c:12015
 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xc6
RIP: 0033:0x7f2ae09c2b19
RSP: 002b:00007f2addf17188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007f2ae0ad6020 RCX: 00007f2ae09c2b19
RDX: 0000000000000000 RSI: 000000000000003e RDI: 0000000020000000
RBP: 00007f2ae0a1cf6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffcf7885af R14: 00007f2addf17300 R15: 0000000000022000

Showing all locks held in the system:
1 lock held by khungtaskd/22:
 #0: ffffffff84ff8a60 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x269 kernel/locking/lockdep.c:6390
1 lock held by in:imklog/179:
2 locks held by rs:main Q:Reg/180:
 #0: ffff88800cf19270 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xed/0x110 fs/file.c:1017
 #1: ffff88800f8ca438 (sb_writers#3){.+.+}-{0:0}, at: ksys_write+0x12d/0x260 fs/read_write.c:658
1 lock held by syz-executor.2/4628:
 #0: ffff88801ed930b0 (&ctx->mutex){+.+.}-{3:3}, at: perf_event_init_context kernel/events/core.c:12906 [inline]
 #0: ffff88801ed930b0 (&ctx->mutex){+.+.}-{3:3}, at: perf_event_init_task+0x25a/0x800 kernel/events/core.c:12981
3 locks held by syz-executor.2/4663:
 #0: ffff8880464a92d8 (&sig->exec_update_lock){++++}-{3:3}, at: __do_sys_perf_event_open+0xfc5/0x2cb0 kernel/events/core.c:11997
 #1: ffff88801ed930b0 (&ctx->mutex){+.+.}-{3:3}, at: mutex_lock_double kernel/events/core.c:11597 [inline]
 #1: ffff88801ed930b0 (&ctx->mutex){+.+.}-{3:3}, at: __perf_event_ctx_lock_double kernel/events/core.c:11742 [inline]
 #1: ffff88801ed930b0 (&ctx->mutex){+.+.}-{3:3}, at: __do_sys_perf_event_open+0x123b/0x2cb0 kernel/events/core.c:12015
 #2: ffff88801ed930b0 (&ctx->mutex/1){+.+.}-{3:3}, at: mutex_lock_double kernel/events/core.c:11598 [inline]
 #2: ffff88801ed930b0 (&ctx->mutex/1){+.+.}-{3:3}, at: __perf_event_ctx_lock_double kernel/events/core.c:11742 [inline]
 #2: ffff88801ed930b0 (&ctx->mutex/1){+.+.}-{3:3}, at: __do_sys_perf_event_open+0x1248/0x2cb0 kernel/events/core.c:12015

=============================================