9pnet: p9_fd_create_tcp (10006): problem connecting socket to 127.0.0.1
9pnet: p9_fd_create_tcp (10029): problem connecting socket to 127.0.0.1
INFO: task syz-executor.0:9984 blocked for more than 143 seconds.
Not tainted 5.10.90 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:27016 pid: 9984 ppid: 284 flags:0x10004004
Call Trace:
context_switch kernel/sched/core.c:3791 [inline]
__schedule+0x848/0x1e80 kernel/sched/core.c:4540
schedule+0xcb/0x270 kernel/sched/core.c:4618
schedule_timeout+0x369/0x3f0 kernel/time/timer.c:1850
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common kernel/sched/completion.c:106 [inline]
wait_for_common kernel/sched/completion.c:117 [inline]
wait_for_completion+0x168/0x270 kernel/sched/completion.c:138
__flush_work+0x4c2/0xa20 kernel/workqueue.c:3047
__cancel_work_timer+0x364/0x4b0 kernel/workqueue.c:3134
p9_conn_destroy net/9p/trans_fd.c:884 [inline]
p9_fd_close+0x236/0x4a0 net/9p/trans_fd.c:919
p9_client_create+0x8ef/0x1090 net/9p/client.c:1071
v9fs_session_init+0x1dd/0x1690 fs/9p/v9fs.c:406
v9fs_mount+0x79/0x8f0 fs/9p/vfs_super.c:126
legacy_get_tree+0x105/0x220 fs/fs_context.c:592
vfs_get_tree+0x8e/0x2f0 fs/super.c:1549
do_new_mount fs/namespace.c:2899 [inline]
path_mount+0x13ba/0x20a0 fs/namespace.c:3229
do_mount fs/namespace.c:3242 [inline]
__do_sys_mount fs/namespace.c:3450 [inline]
__se_sys_mount fs/namespace.c:3427 [inline]
__x64_sys_mount+0x27e/0x300 fs/namespace.c:3427
do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7f5922f14b19
RSP: 002b:00007f592048a188 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f5923027f60 RCX: 00007f5922f14b19
RDX: 0000000020000dc0 RSI: 0000000020000d80 RDI: 0000000000000000
RBP: 00007f5922f6ef6d R08: 0000000020000300 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc5e1404ef R14: 00007f592048a300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by khungtaskd/22:
#0: ffffffff84df6960 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x269 kernel/locking/lockdep.c:6379
1 lock held by in:imklog/177:
2 locks held by rs:main Q:Reg/178:
4 locks held by kworker/1:3/9787:
#0: ffff888007c58d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888007c58d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic64_set include/asm-generic/atomic-instrumented.h:856 [inline]
#0: ffff888007c58d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/asm-generic/atomic-long.h:41 [inline]
#0: ffff888007c58d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:617 [inline]
#0: ffff888007c58d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:644 [inline]
#0: ffff888007c58d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x8ac/0x1590 kernel/workqueue.c:2241
#1: ffff888041bb7da8 ((work_completion)(&m->rq)){+.+.}-{0:0}, at: process_one_work+0x8df/0x1590 kernel/workqueue.c:2245
#2: ffff888017f22098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:266
#3: ffffc900007c92e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xdca/0x1320 drivers/tty/n_tty.c:2174
=============================================