INFO: task syz.4.209:6230 blocked for more than 143 seconds.
Not tainted 6.11.0-rc1-syzkaller-00043-g94ede2a3e913 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.4.209 state:D stack:25808 pid:6230 tgid:6229 ppid:5231 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0x1800/0x4a60 kernel/sched/core.c:6529
__schedule_loop kernel/sched/core.c:6606 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6621
schedule_timeout+0xb0/0x310 kernel/time/timer.c:2557
do_wait_for_common kernel/sched/completion.c:95 [inline]
__wait_for_common kernel/sched/completion.c:116 [inline]
wait_for_common kernel/sched/completion.c:127 [inline]
wait_for_completion+0x355/0x620 kernel/sched/completion.c:148
__flush_work+0xaa9/0xd00 kernel/workqueue.c:4208
__lru_add_drain_all+0x4f6/0x560 mm/swap.c:920
invalidate_bdev+0x76/0xa0 block/bdev.c:100
__ext4_fill_super fs/ext4/super.c:5639 [inline]
ext4_fill_super+0x2a02/0x6df0 fs/ext4/super.c:5664
get_tree_bdev+0x3f9/0x570 fs/super.c:1635
vfs_get_tree+0x92/0x2a0 fs/super.c:1800
do_new_mount+0x2be/0xb40 fs/namespace.c:3472
do_mount fs/namespace.c:3812 [inline]
__do_sys_mount fs/namespace.c:4020 [inline]
__se_sys_mount+0x2d6/0x3c0 fs/namespace.c:3997
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f81fe57899a
RSP: 002b:00007f81ff3e9e78 EFLAGS: 00000202
ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f81ff3e9f00 RCX: 00007f81fe57899a
RDX: 0000000020000040 RSI: 0000000020000000 RDI: 00007f81ff3e9ec0
RBP: 0000000020000040 R08: 00007f81ff3e9f00 R09: 000000000000000e
R10: 000000000000000e R11: 0000000000000202 R12: 0000000020000000
R13: 00007f81ff3e9ec0 R14: 0000000000000442 R15: 00000000200002c0
INFO: task syz.1.210:6232 blocked for more than 144 seconds.
Not tainted 6.11.0-rc1-syzkaller-00043-g94ede2a3e913 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.210 state:D stack:23096 pid:6232 tgid:6231 ppid:5227 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0x1800/0x4a60 kernel/sched/core.c:6529
__schedule_loop kernel/sched/core.c:6606 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6621
super_lock+0x335/0x400 fs/super.c:114
super_lock_shared fs/super.c:139 [inline]
iterate_supers+0x8c/0x190 fs/super.c:931
ksys_sync+0xbd/0x1c0 fs/sync.c:102
__do_sys_sync+0xe/0x20 fs/sync.c:113
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f39fc977299
RSP: 002b:00007f39fd664048 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2
RAX: ffffffffffffffda RBX: 00007f39fcb05f80 RCX: 00007f39fc977299
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f39fc9e48e6 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f39fcb05f80 R15: 00007ffe606c9008
Showing all locks held in the system:
1 lock held by khungtaskd/30:
#0:
ffffffff8e9377a0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:326 [inline]
ffffffff8e9377a0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:838 [inline]
ffffffff8e9377a0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6620
3 locks held by kworker/u8:5/993:
#0: ffff88802ab5a948
(
(wq_completion)ipv6_addrconf
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3206 [inline]
, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312
#1: ffffc900040f7d00
(
(work_completion)(&(&net->ipv6.addr_chk_work)->work)
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3207 [inline]
, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312
#2:
ffffffff8fc7f9c8
(
rtnl_mutex
){+.+.}-{3:3}
, at: addrconf_verify_work+0x19/0x30 net/ipv6/addrconf.c:4734
4 locks held by kworker/u8:6/2458:
#0: ffff8880166e5948
(
(wq_completion)netns
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3206 [inline]
, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312
#1: ffffc900097c7d00 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline]
#1: ffffc900097c7d00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312
#2:
ffffffff8fc72e50
(
pernet_ops_rwsem
){++++}-{3:3}
, at: cleanup_net+0x16a/0xcc0 net/core/net_namespace.c:594
#3:
ffffffff8fc7f9c8 (rtnl_mutex){+.+.}-{3:3}, at: wg_destruct+0x25/0x2e0 drivers/net/wireguard/device.c:246
2 locks held by kworker/u8:7/2538:
#0:
ffff8880b933ea18
(
&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:560
#1:
ffff8880b9328948
(
&per_cpu_ptr(group->pcpu, cpu)->seq
){-.-.}-{0:0}
, at: psi_task_switch+0x441/0x770 kernel/sched/psi.c:989
2 locks held by getty/4976:
#0:
ffff88802b1650a0
(
&tty->ldisc_sem
){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc900031332f0
(&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 drivers/tty/n_tty.c:2211
3 locks held by kworker/1:5/5291:
#0:
ffff888015878948
(
(wq_completion)events
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3206 [inline]
, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312
#1:
ffffc90004fefd00
(
(linkwatch_work).work
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3207 [inline]
, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312
#2:
ffffffff8fc7f9c8
(
rtnl_mutex
){+.+.}-{3:3}
, at: linkwatch_event+0xe/0x60 net/core/link_watch.c:276
6 locks held by kworker/0:4/5292:
2 locks held by syz-executor/6066:
#0:
ffffffff8fc7f9c8
(
rtnl_mutex
){+.+.}-{3:3}, at: tun_detach drivers/net/tun.c:698 [inline]
){+.+.}-{3:3}, at: tun_chr_close+0x3e/0x1b0 drivers/net/tun.c:3510
#1: ffffffff8e7d1ad0
(
cpu_hotplug_lock
){++++}-{0:0}
, at: flush_all_backlogs net/core/dev.c:6021 [inline]
, at: unregister_netdevice_many_notify+0x5c4/0x1c40 net/core/dev.c:11325
1 lock held by syz.5.199/6199:
#0:
ffffffff8fc7f9c8
(rtnl_mutex){+.+.}-{3:3}, at: tun_detach drivers/net/tun.c:698 [inline]
(rtnl_mutex){+.+.}-{3:3}, at: tun_chr_close+0x3e/0x1b0 drivers/net/tun.c:3510
9 locks held by syz.0.205/6208:
1 lock held by syz.3.206/6209:
#0:
ffffffff8fc7f9c8
(
rtnl_mutex){+.+.}-{3:3}, at: tun_detach drivers/net/tun.c:698 [inline]
rtnl_mutex){+.+.}-{3:3}, at: tun_chr_close+0x3e/0x1b0 drivers/net/tun.c:3510
2 locks held by syz.4.209/6230:
#0:
ffff8880228c60e0
(
&type->s_umount_key#28/1){+.+.}-{3:3}, at: alloc_super+0x221/0x9d0 fs/super.c:344
#1: ffffffff8e9f16e8
(
lock
#3){+.+.}-{3:3}, at: __lru_add_drain_all+0x66/0x560 mm/swap.c:875
1 lock held by syz-executor/6234:
#0: ffffffff8fc7f9c8
(rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
(rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6644
1 lock held by syz-executor/6238:
#0:
ffffffff8fc7f9c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
ffffffff8fc7f9c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6644
2 locks held by syz-executor/6240:
#0: ffffffff8fc72e50 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x4c6/0x7b0 net/core/net_namespace.c:504
#1:
ffffffff8fc7f9c8
(
rtnl_mutex
){+.+.}-{3:3}
, at: ip_tunnel_init_net+0x20e/0x710 net/ipv4/ip_tunnel.c:1158
2 locks held by syz-executor/6243:
#0: ffffffff8fc72e50 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x4c6/0x7b0 net/core/net_namespace.c:504
#1: ffffffff8fc7f9c8 (rtnl_mutex){+.+.}-{3:3}, at: ip_tunnel_init_net+0x20e/0x710 net/ipv4/ip_tunnel.c:1158
2 locks held by syz-executor/6246:
#0:
ffffffff8fc72e50
(pernet_ops_rwsem){++++}-{3:3}
, at: copy_net_ns+0x4c6/0x7b0 net/core/net_namespace.c:504
#1: ffffffff8fc7f9c8 (rtnl_mutex){+.+.}-{3:3}, at: register_nexthop_notifier+0x84/0x290 net/ipv4/nexthop.c:3872
1 lock held by syz-executor/6252:
#0: ffffffff8fc7f9c8
(
rtnl_mutex
){+.+.}-{3:3}
, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
, at: rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6644
1 lock held by syz-executor/6255:
#0:
ffffffff8fc7f9c8
(
rtnl_mutex
){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6644
1 lock held by syz-executor/6259:
#0:
ffffffff8fc7f9c8
(
rtnl_mutex
){+.+.}-{3:3}
, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
, at: rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6644
1 lock held by syz-executor/6261:
#0: ffffffff8fc7f9c8
(
rtnl_mutex
){+.+.}-{3:3}
, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
, at: rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6644
1 lock held by syz-executor/6264:
#0: ffffffff8fc7f9c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8fc7f9c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6644
1 lock held by syz-executor/6267:
#0: ffffffff8fc7f9c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8fc7f9c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6644
1 lock held by syz-executor/6276:
#0: ffffffff8fc7f9c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8fc7f9c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6644
1 lock held by syz-executor/6279:
#0: ffffffff8fc7f9c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8fc7f9c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6644
1 lock held by syz-executor/6282:
#0:
ffffffff8fc7f9c8
(
rtnl_mutex
){+.+.}-{3:3}
, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
, at: rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6644
1 lock held by syz-executor/6285:
#0:
ffffffff8fc7f9c8
(
rtnl_mutex
){+.+.}-{3:3}
, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
, at: rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6644
1 lock held by syz-executor/6289:
#0: ffffffff8fc7f9c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8fc7f9c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6644
1 lock held by syz-executor/6291:
#0:
ffffffff8fc7f9c8
(rtnl_mutex
){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6644
=============================================
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.11.0-rc1-syzkaller-00043-g94ede2a3e913 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
Call Trace:
__dump_stack lib/dump_stack.c:93 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119
nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x198/0x320 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline]
watchdog+0xfee/0x1030 kernel/hung_task.c:379
kthread+0x2f2/0x390 kernel/kthread.c:389
ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Sending NMI from CPU 1 to CPUs 0:
yealink 2-1:36.0: urb_ctl_callback - urb status -71
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 6208 Comm: syz.0.205 Not tainted 6.11.0-rc1-syzkaller-00043-g94ede2a3e913 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
RIP: 0010:get_current arch/x86/include/asm/current.h:49 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x8/0x70 kernel/kcov.c:206
Code: 8b 3d 4c cc 95 0c 48 89 de 5b e9 73 84 5b 00 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 8b 04 24 <65> 48 8b 0c 25 40 d7 03 00 65 8b 15 70 70 70 7e f7 c2 00 01 ff 00
RSP: 0018:ffffc90000006ad8 EFLAGS: 00000002
RAX: ffffffff817404c2 RBX: 0000000000000000 RCX: ffff888018be1e00
RDX: 0000000000010102 RSI: 0000000000000000 RDI: ffffc90000006cb0
RBP: ffffc90000006b90 R08: ffffc90000006c4f R09: ffffc90000006c20
R10: dffffc0000000000 R11: fffff52000000d8a R12: ffffc90000006cb0
R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000001
FS: 0000000000000000(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f84cf9ddfa8 CR3: 000000000e734000 CR4: 0000000000350ef0
Call Trace:
info_print_prefix+0x102/0x310 kernel/printk/printk.c:1356
record_print_text kernel/printk/printk.c:1405 [inline]
printk_get_next_message+0x6da/0xbe0 kernel/printk/printk.c:2910
console_emit_next_record kernel/printk/printk.c:2950 [inline]
console_flush_all+0x410/0xfd0 kernel/printk/printk.c:3049
console_unlock+0x13b/0x4d0 kernel/printk/printk.c:3118
vprintk_emit+0x5a6/0x770 kernel/printk/printk.c:2348
dev_vprintk_emit+0x2ae/0x330 drivers/base/core.c:4909
dev_printk_emit+0xdd/0x120 drivers/base/core.c:4920
_dev_err+0x122/0x170 drivers/base/core.c:4975
urb_ctl_callback+0x1d3/0x290 drivers/input/misc/yealink.c:456
__usb_hcd_giveback_urb+0x42e/0x6e0 drivers/usb/core/hcd.c:1650
dummy_timer+0x830/0x45a0 drivers/usb/gadget/udc/dummy_hcd.c:1987
__run_hrtimer kernel/time/hrtimer.c:1689 [inline]
__hrtimer_run_queues+0x59d/0xd50 kernel/time/hrtimer.c:1753
hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1815
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline]
__sysvec_apic_timer_interrupt+0x112/0x3f0 arch/x86/kernel/apic/apic.c:1049
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
sysvec_apic_timer_interrupt+0x52/0xc0 arch/x86/kernel/apic/apic.c:1043
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:sched_balance_update_blocked_averages+0x1562/0x16a0 kernel/sched/fair.c:9501
Code: 84 24 e1 00 00 00 02 75 72 f7 44 24 78 00 02 00 00 48 b8 00 00 00 00 00 fc ff df 74 01 fb 48 c7 84 24 c0 00 00 00 0e 36 e0 45 <48> 8b 8c 24 80 00 00 00 48 c7 04 08 00 00 00 00 66 c7 44 08 09 00
RSP: 0018:ffffc90000007c80 EFLAGS: 00000206
RAX: dffffc0000000000 RBX: 1ffff92000000fac RCX: ffffffff81701e2a
RDX: dffffc0000000000 RSI: ffffffff8c0ad560 RDI: ffffffff8c606640
RBP: ffffc90000007df8 R08: ffffffff93729807 R09: 1ffffffff26e5300
R10: dffffc0000000000 R11: fffffbfff26e5301 R12: ffff8880b923f438
R13: 1ffff11017247d8b R14: ffffc90000007d60 R15: ffff8880b923ec48
sched_balance_softirq+0xe7/0x170 kernel/sched/fair.c:12502
handle_softirqs+0x2c6/0x970 kernel/softirq.c:554
__do_softirq kernel/softirq.c:588 [inline]
invoke_softirq kernel/softirq.c:428 [inline]
__irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637
irq_exit_rcu+0x9/0x30 kernel/softirq.c:649
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1043
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:page_ext_get+0xc5/0x2a0
Code: ff c6 05 ed 7d fb 0d 01 48 c7 c7 80 43 18 8c be 48 03 00 00 48 c7 c2 a0 45 18 8c e8 e5 38 6a ff 49 bf 00 00 00 00 00 fc ff df <48> b8 00 00 00 00 00 16 00 00 48 01 c3 49 89 dc 49 c1 fc 06 48 bd
RSP: 0018:ffffc9000349f2b0 EFLAGS: 00000293
RAX: ffffffff8205d343 RBX: ffffea0001dd5dc0 RCX: ffff888018be1e00
RDX: 0000000000000000 RSI: ffffffff8c606620 RDI: ffffffff8c6065e0
RBP: 0000000000000001 R08: ffffffff8205d331 R09: 1ffffffff26e5300
R10: dffffc0000000000 R11: fffffbfff26e5301 R12: 1ffff11003eff649
R13: 0000000077577027 R14: ffffffff8205d300 R15: dffffc0000000000
page_table_check_clear+0x4b/0x550 mm/page_table_check.c:74
get_and_clear_full_ptes include/linux/pgtable.h:678 [inline]
zap_present_folio_ptes mm/memory.c:1493 [inline]
zap_present_ptes mm/memory.c:1576 [inline]
zap_pte_range mm/memory.c:1618 [inline]
zap_pmd_range mm/memory.c:1736 [inline]
zap_pud_range mm/memory.c:1765 [inline]
zap_p4d_range mm/memory.c:1786 [inline]
unmap_page_range+0x2b48/0x42c0 mm/memory.c:1807
unmap_vmas+0x3cc/0x5f0 mm/memory.c:1897
exit_mmap+0x264/0xc80 mm/mmap.c:3412
__mmput+0x115/0x390 kernel/fork.c:1345
exit_mm+0x220/0x310 kernel/exit.c:571
do_exit+0x9b2/0x27f0 kernel/exit.c:869
do_group_exit+0x207/0x2c0 kernel/exit.c:1031
get_signal+0x16a1/0x1740 kernel/signal.c:2917
arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:310
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0xc9/0x370 kernel/entry/common.c:218
do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f84cff77299
Code: Unable to access opcode bytes at 0x7f84cff7726f.
RSP: 002b:00007f84cf9ff048 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: 000000000000000b RBX: 00007f84d0105f80 RCX: 00007f84cff77299
RDX: 0000000000000651 RSI: 0000000020000000 RDI: 0000000000000004
RBP: 00007f84cffe48e6 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f84d0105f80 R15: 00007ffd1113fd78
yealink 2-1:36.0: urb_irq_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: urb_irq_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: urb_irq_callback - urb status -71