bond0: Releasing backup interface bond_slave_1
bond0: Enslaving bond_slave_1 as an active interface with an up link
INFO: task syz-executor.2:7714 blocked for more than 140 seconds.
Not tainted 4.14.147 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.2 D28056 7714 6970 0x00000004
Call Trace:
context_switch kernel/sched/core.c:2807 [inline]
__schedule+0x7b8/0x1cd0 kernel/sched/core.c:3383
schedule+0x92/0x1c0 kernel/sched/core.c:3427
schedule_timeout+0x93b/0xe10 kernel/time/timer.c:1721
do_wait_for_common kernel/sched/completion.c:91 [inline]
__wait_for_common kernel/sched/completion.c:112 [inline]
wait_for_common kernel/sched/completion.c:123 [inline]
wait_for_completion+0x27c/0x420 kernel/sched/completion.c:144
flush_work+0x3eb/0x730 kernel/workqueue.c:2885
__cancel_work_timer+0x2f0/0x480 kernel/workqueue.c:2956
cancel_work_sync+0x18/0x20 kernel/workqueue.c:2992
p9_conn_destroy net/9p/trans_fd.c:873 [inline]
p9_fd_close+0x2ae/0x450 net/9p/trans_fd.c:899
p9_client_destroy+0x6e/0x570 net/9p/client.c:1115
v9fs_session_init+0xe52/0x1620 fs/9p/v9fs.c:495
v9fs_mount+0x7d/0x870 fs/9p/vfs_super.c:135
mount_fs+0x97/0x2a1 fs/super.c:1237
vfs_kern_mount.part.0+0x5e/0x3d0 fs/namespace.c:1046
vfs_kern_mount fs/namespace.c:1036 [inline]
do_new_mount fs/namespace.c:2549 [inline]
do_mount+0x417/0x27d0 fs/namespace.c:2879
SYSC_mount fs/namespace.c:3095 [inline]
SyS_mount+0xab/0x120 fs/namespace.c:3072
do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x459a59
RSP: 002b:00007f2e299fec78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000459a59
RDX: 0000000020000100 RSI: 0000000020000000 RDI: 0000000000000000
RBP: 000000000075c1c0 R08: 0000000020000600 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f2e299ff6d4
R13: 00000000004c623f R14: 00000000004db268 R15: 00000000ffffffff
Showing all locks held in the system:
1 lock held by khungtaskd/1014:
#0: (tasklist_lock){.+.+}, at: [<ffffffff814875e8>] debug_show_all_locks+0x7f/0x21f kernel/locking/lockdep.c:4544
1 lock held by rsyslogd/6798:
#0: (&f->f_pos_lock){+.+.}, at: [<ffffffff819451ab>] __fdget_pos+0xab/0xd0 fs/file.c:769
2 locks held by getty/6920:
#0: (&tty->ldisc_sem){++++}, at: [<ffffffff861c3dc3>] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:376
#1: (&ldata->atomic_read_lock){+.+.}, at: [<ffffffff83111406>] n_tty_read+0x1e6/0x17b0 drivers/tty/n_tty.c:2156
2 locks held by getty/6921:
#0: (&tty->ldisc_sem){++++}, at: [<ffffffff861c3dc3>] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:376
#1: (&ldata->atomic_read_lock){+.+.}, at: [<ffffffff83111406>] n_tty_read+0x1e6/0x17b0 drivers/tty/n_tty.c:2156
2 locks held by getty/6922:
#0: (&tty->ldisc_sem){++++}, at: [<ffffffff861c3dc3>] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:376
#1: (&ldata->atomic_read_lock){+.+.}, at: [<ffffffff83111406>] n_tty_read+0x1e6/0x17b0 drivers/tty/n_tty.c:2156
2 locks held by getty/6923:
#0: (&tty->ldisc_sem){++++}, at: [<ffffffff861c3dc3>] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:376
#1: (&ldata->atomic_read_lock){+.+.}, at: [<ffffffff83111406>] n_tty_read+0x1e6/0x17b0 drivers/tty/n_tty.c:2156
2 locks held by getty/6924:
#0: (&tty->ldisc_sem){++++}, at: [<ffffffff861c3dc3>] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:376
#1: (&ldata->atomic_read_lock){+.+.}, at: [<ffffffff83111406>] n_tty_read+0x1e6/0x17b0 drivers/tty/n_tty.c:2156
2 locks held by getty/6925:
#0: (&tty->ldisc_sem){++++}, at: [<ffffffff861c3dc3>] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:376
#1: (&ldata->atomic_read_lock){+.+.}, at: [<ffffffff83111406>] n_tty_read+0x1e6/0x17b0 drivers/tty/n_tty.c:2156
2 locks held by getty/6926:
#0: (&tty->ldisc_sem){++++}, at: [<ffffffff861c3dc3>] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:376
#1: (&ldata->atomic_read_lock){+.+.}, at: [<ffffffff83111406>] n_tty_read+0x1e6/0x17b0 drivers/tty/n_tty.c:2156
2 locks held by kworker/0:3/6979:
#0: ("events"){+.+.}, at: [<ffffffff813cf92e>] work_static include/linux/workqueue.h:199 [inline]
#0: ("events"){+.+.}, at: [<ffffffff813cf92e>] set_work_data kernel/workqueue.c:619 [inline]
#0: ("events"){+.+.}, at: [<ffffffff813cf92e>] set_work_pool_and_clear_pending kernel/workqueue.c:646 [inline]
#0: ("events"){+.+.}, at: [<ffffffff813cf92e>] process_one_work+0x76e/0x1600 kernel/workqueue.c:2085
#1: ((&m->wq)){+.+.}, at: [<ffffffff813cf96b>] process_one_work+0x7ab/0x1600 kernel/workqueue.c:2089
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 1014 Comm: khungtaskd Not tainted 4.14.147 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:17 [inline]
dump_stack+0x138/0x197 lib/dump_stack.c:53
nmi_cpu_backtrace.cold+0x57/0x94 lib/nmi_backtrace.c:101
nmi_trigger_cpumask_backtrace+0x141/0x189 lib/nmi_backtrace.c:62
arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38
trigger_all_cpu_backtrace include/linux/nmi.h:140 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:195 [inline]
watchdog+0x5e7/0xb90 kernel/hung_task.c:274
kthread+0x319/0x430 kernel/kthread.c:232
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0 skipped: idling at pc 0xffffffff861c48ae