INFO: task syz-executor:9990 blocked for more than 143 seconds. Not tainted 6.10.0-syzkaller-12927-ge172f1e90688 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor state:D stack:21728 pid:9990 tgid:9990 ppid:1 flags:0x00000004 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_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752 new_device_store+0x1b4/0x890 drivers/net/netdevsim/bus.c:166 kernfs_fop_write_iter+0x3a3/0x500 fs/kernfs/file.c:334 new_sync_write fs/read_write.c:497 [inline] vfs_write+0xa74/0xc90 fs/read_write.c:590 ksys_write+0x1a0/0x2c0 fs/read_write.c:643 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: 0033:0x7efc04d75e1f RSP: 002b:00007ffe472b84b0 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007efc04d75e1f RDX: 0000000000000003 RSI: 00007ffe472b8500 RDI: 0000000000000005 RBP: 00007efc04de5964 R08: 0000000000000000 R09: 00007ffe472b8307 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003 R13: 00007ffe472b8500 R14: 00007efc05a34620 R15: 0000000000000003 INFO: task udevd:9997 blocked for more than 144 seconds. Not tainted 6.10.0-syzkaller-12927-ge172f1e90688 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:udevd state:D stack:25088 pid:9997 tgid:9997 ppid:4674 flags:0x00000002 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_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752 device_lock include/linux/device.h:1009 [inline] uevent_show+0x17d/0x340 drivers/base/core.c:2743 dev_attr_show+0x57/0xc0 drivers/base/core.c:2437 sysfs_kf_seq_show+0x333/0x4c0 fs/sysfs/file.c:59 seq_read_iter+0x447/0xd60 fs/seq_file.c:230 new_sync_read fs/read_write.c:395 [inline] vfs_read+0x9bf/0xbc0 fs/read_write.c:476 ksys_read+0x1a0/0x2c0 fs/read_write.c:619 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: 0033:0x7fda41f16b6a RSP: 002b:00007fff22ef84b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 0000556cbb5ae5d0 RCX: 00007fda41f16b6a RDX: 0000000000001000 RSI: 0000556cbb5aa070 RDI: 0000000000000008 RBP: 0000556cbb5ae5d0 R08: 0000000000000008 R09: 0000000000000020 R10: 000000000000010f R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000003fff R14: 00007fff22ef8998 R15: 000000000000000a INFO: task syz-executor:10028 blocked for more than 145 seconds. Not tainted 6.10.0-syzkaller-12927-ge172f1e90688 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor state:D stack:21728 pid:10028 tgid:10028 ppid:1 flags:0x00000004 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_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752 del_device_store+0xfc/0x480 drivers/net/netdevsim/bus.c:216 kernfs_fop_write_iter+0x3a3/0x500 fs/kernfs/file.c:334 new_sync_write fs/read_write.c:497 [inline] vfs_write+0xa74/0xc90 fs/read_write.c:590 ksys_write+0x1a0/0x2c0 fs/read_write.c:643 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: 0033:0x7f4c30f75e1f RSP: 002b:00007ffd7d62d140 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f4c30f75e1f RDX: 0000000000000001 RSI: 00007ffd7d62d190 RDI: 0000000000000005 RBP: 00007f4c30fe5940 R08: 0000000000000000 R09: 00007ffd7d62cf97 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001 R13: 00007ffd7d62d190 R14: 00007f4c31c34620 R15: 0000000000000003 Showing all locks held in the system: 5 locks held by kworker/1:0/25: 1 lock held by khungtaskd/30: #0: ffffffff8e937660 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:326 [inline] #0: ffffffff8e937660 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:838 [inline] #0: ffffffff8e937660 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6620 9 locks held by kworker/1:1H/42: 3 locks held by kworker/1:1/46: 2 locks held by kworker/u8:5/166: 2 locks held by kworker/1:2/935: 4 locks held by kworker/u8:6/1111: #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: ffffc90004267d00 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline] #1: ffffc90004267d00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312 #2: ffffffff8fc73250 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0 net/core/net_namespace.c:594 #3: ffffffff8fc7fdc8 (rtnl_mutex){+.+.}-{3:3}, at: ieee80211_unregister_hw+0x55/0x2c0 net/mac80211/main.c:1662 3 locks held by kworker/u8:7/1119: #0: ffff88802ab4c948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3206 [inline] ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312 #1: ffffc90004277d00 ((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: ffffffff8fc7fdc8 ( rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0x19/0x30 net/ipv6/addrconf.c:4734 3 locks held by kworker/u8:10/1301: 2 locks held by dhcpcd/4888: #0: ffffffff8fc64a28 (vlan_ioctl_mutex){+.+.}-{3:3}, at: sock_ioctl+0x664/0x8e0 net/socket.c:1303 #1: ffffffff8fc7fdc8 (rtnl_mutex){+.+.}-{3:3} , at: vlan_ioctl_handler+0x112/0x9d0 net/8021q/vlan.c:553 2 locks held by getty/4976: #0: ffff88802b43b0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243 #1: ffffc900031232f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 drivers/tty/n_tty.c:2211 1 lock held by syz.4.425/7240: #0: ffffffff8fc7fdc8 (rtnl_mutex){+.+.}-{3:3} , at: tun_detach drivers/net/tun.c:698 [inline] , at: tun_chr_close+0x3e/0x1b0 drivers/net/tun.c:3510 2 locks held by kworker/1:8/7773: 4 locks held by syz-executor/9990: #0: ffff88804d948420 (sb_writers#8){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2876 [inline] #0: ffff88804d948420 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x227/0xc90 fs/read_write.c:586 #1: ffff88802e627c88 (&of->mutex){+.+.}-{3:3} , at: kernfs_fop_write_iter+0x1eb/0x500 fs/kernfs/file.c:325 #2: ffff888023564788 (kn->active#51){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x20f/0x500 fs/kernfs/file.c:326 #3: ffffffff8f51cc48 (nsim_bus_dev_list_lock){+.+.}-{3:3} , at: new_device_store+0x1b4/0x890 drivers/net/netdevsim/bus.c:166 4 locks held by udevd/9997: #0: ffff88807f039e80 (&p->lock){+.+.}-{3:3} , at: seq_read_iter+0xb7/0xd60 fs/seq_file.c:182 #1: ffff88805ee15888 (&of->mutex#2){+.+.}-{3:3} , at: kernfs_seq_start+0x53/0x3b0 fs/kernfs/file.c:154 #2: ffff888152a6c3c8 (kn->active#5){++++}-{0:0}, at: kernfs_seq_start+0x72/0x3b0 fs/kernfs/file.c:155 #3: ffff8880578f4190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline] #3: ffff8880578f4190 (&dev->mutex){....}-{3:3}, at: uevent_show+0x17d/0x340 drivers/base/core.c:2743 1 lock held by syz-executor/10021: #0: ffffffff8fc7fdc8 (rtnl_mutex){+.+.}-{3:3}, at: tun_detach drivers/net/tun.c:698 [inline] #0: ffffffff8fc7fdc8 (rtnl_mutex){+.+.}-{3:3}, at: tun_chr_close+0x3e/0x1b0 drivers/net/tun.c:3510 4 locks held by syz-executor/10028: #0: ffff88804d948420 (sb_writers#8){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2876 [inline] ffff88804d948420 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x227/0xc90 fs/read_write.c:586 #1: ffff88802e624488 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1eb/0x500 fs/kernfs/file.c:325 #2: ffff888023564878 (kn->active#50){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x20f/0x500 fs/kernfs/file.c:326 #3: ffffffff8f51cc48 (nsim_bus_dev_list_lock){+.+.}-{3:3} , at: del_device_store+0xfc/0x480 drivers/net/netdevsim/bus.c:216 8 locks held by syz-executor/10040: #0: ffff88804d948420 (sb_writers#8){.+.+}-{0:0} , at: file_start_write include/linux/fs.h:2876 [inline] , at: vfs_write+0x227/0xc90 fs/read_write.c:586 #1: ffff88802c6d5888 ( &of->mutex ){+.+.}-{3:3} , at: kernfs_fop_write_iter+0x1eb/0x500 fs/kernfs/file.c:325 #2: ffff888023564878 (kn->active#50){.+.+}-{0:0} , at: kernfs_fop_write_iter+0x20f/0x500 fs/kernfs/file.c:326 #3: ffffffff8f51cc48 (nsim_bus_dev_list_lock ){+.+.}-{3:3}, at: del_device_store+0xfc/0x480 drivers/net/netdevsim/bus.c:216 #4: ffff88801badf0e8 (&dev->mutex){....}-{3:3} , at: device_lock include/linux/device.h:1009 [inline] , at: __device_driver_lock drivers/base/dd.c:1094 [inline] , at: device_release_driver_internal+0xce/0x7c0 drivers/base/dd.c:1292 #5: ffff88801badb250 ( &devlink->lock_key #32 ){+.+.}-{3:3}, at: nsim_drv_remove+0x50/0x160 drivers/net/netdevsim/dev.c:1672 #6: ffffffff8fc7fdc8 ( rtnl_mutex ){+.+.}-{3:3} , at: nsim_destroy+0x71/0x5c0 drivers/net/netdevsim/netdev.c:773 #7: ffffffff8e7d1ad0 ( cpu_hotplug_lock){++++}-{0:0}, at: flush_all_backlogs net/core/dev.c:6021 [inline] cpu_hotplug_lock){++++}-{0:0}, at: unregister_netdevice_many_notify+0x5c4/0x1c40 net/core/dev.c:11325 1 lock held by syz.5.1073/10375: #0: ffffffff8fc7fdc8 (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 1 lock held by syz.0.1075/10381: #0: ffffffff8fc7fdc8 (rtnl_mutex){+.+.}-{3:3}, at: tun_detach drivers/net/tun.c:698 [inline] #0: ffffffff8fc7fdc8 (rtnl_mutex){+.+.}-{3:3}, at: tun_chr_close+0x3e/0x1b0 drivers/net/tun.c:3510 2 locks held by syz-executor/10393: #0: ffffffff8fc73250 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x4c6/0x7b0 net/core/net_namespace.c:504 #1: ffffffff8fc7fdc8 (rtnl_mutex){+.+.}-{3:3}, at: register_nexthop_notifier+0x84/0x290 net/ipv4/nexthop.c:3872 2 locks held by syz-executor/10395: #0: ffffffff8fc73250 ( pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x4c6/0x7b0 net/core/net_namespace.c:504 #1: ffffffff8fc7fdc8 (rtnl_mutex){+.+.}-{3:3} , at: ip_tunnel_init_net+0x20e/0x710 net/ipv4/ip_tunnel.c:1158 2 locks held by syz-executor/10397: #0: ffffffff8fc73250 (pernet_ops_rwsem){++++}-{3:3} , at: copy_net_ns+0x4c6/0x7b0 net/core/net_namespace.c:504 #1: ffffffff8fc7fdc8 (rtnl_mutex){+.+.}-{3:3} , at: ip_tunnel_init_net+0x20e/0x710 net/ipv4/ip_tunnel.c:1158 2 locks held by syz-executor/10400: #0: ffffffff8fc73250 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x4c6/0x7b0 net/core/net_namespace.c:504 #1: ffffffff8fc7fdc8 (rtnl_mutex){+.+.}-{3:3}, at: ip_tunnel_init_net+0x20e/0x710 net/ipv4/ip_tunnel.c:1158 2 locks held by syz-executor/10403: #0: ffffffff8fc73250 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x4c6/0x7b0 net/core/net_namespace.c:504 #1: ffffffff8fc7fdc8 (rtnl_mutex){+.+.}-{3:3}, at: ip_tunnel_init_net+0x20e/0x710 net/ipv4/ip_tunnel.c:1158 2 locks held by syz-executor/10406: #0: ffffffff8fc73250 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x4c6/0x7b0 net/core/net_namespace.c:504 #1: ffffffff8fc7fdc8 (rtnl_mutex){+.+.}-{3:3}, at: register_nexthop_notifier+0x84/0x290 net/ipv4/nexthop.c:3872 1 lock held by syz-executor/10420: #0: ffffffff8fc7fdc8 (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/10422: #0: ffffffff8fc7fdc8 (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/10425: #0: ffffffff8fc7fdc8 ( 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/10428: #0: ffffffff8fc7fdc8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffffffff8fc7fdc8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6644 1 lock held by syz-executor/10431: #0: ffffffff8fc7fdc8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffffffff8fc7fdc8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6644 1 lock held by syz-executor/10434: #0: ffffffff8fc7fdc8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffffffff8fc7fdc8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6644 1 lock held by syz-executor/10437: #0: ffffffff8fc7fdc8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffffffff8fc7fdc8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6644 1 lock held by syz-executor/10441: #0: ffffffff8fc7fdc8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] ffffffff8fc7fdc8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6644 1 lock held by syz-executor/10442: #0: ffffffff8fc7fdc8 ( 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/10447: #0: ffffffff8fc7fdc8 (rtnl_mutex){+.+.}-{3:3} , at: rtnl_lock net/core/rtnetlink.c:79 [inline] , at: rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6644 ============================================= NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.10.0-syzkaller-12927-ge172f1e90688 #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 0 to CPUs 1: gspca_pac7302 1-1:0.0: URB error -71, resubmitting NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 42 Comm: kworker/1:1H Not tainted 6.10.0-syzkaller-12927-ge172f1e90688 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 Workqueue: events_highpri wq_barrier_func RIP: 0010:io_serial_in+0x76/0xb0 drivers/tty/serial/8250/8250_port.c:406 Code: 40 2a 55 fc 89 e9 41 d3 e6 48 83 c3 40 48 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 b1 60 bc fc 44 03 33 44 89 f2 ec <0f> b6 c0 5b 41 5e 41 5f 5d e9 f7 e7 b1 06 89 e9 80 e1 07 38 c1 7c RSP: 0018:ffffc90000a17418 EFLAGS: 00000002 RAX: 1ffffffff2a49d00 RBX: ffffffff9524ef60 RCX: 0000000000000000 RDX: 00000000000003fd RSI: 0000000000000000 RDI: 0000000000000020 RBP: 0000000000000000 R08: ffffffff853e58d6 R09: 1ffff110040c4046 R10: dffffc0000000000 R11: ffffffff853e5890 R12: dffffc0000000000 R13: 00000000000026cd R14: 00000000000003fd R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b333f9ff8 CR3: 000000007ee24000 CR4: 0000000000350ef0 Call Trace: serial_in drivers/tty/serial/8250/8250.h:137 [inline] serial_lsr_in drivers/tty/serial/8250/8250.h:159 [inline] wait_for_lsr drivers/tty/serial/8250/8250_port.c:2068 [inline] serial8250_console_fifo_write drivers/tty/serial/8250/8250_port.c:3315 [inline] serial8250_console_write+0x109b/0x1770 drivers/tty/serial/8250/8250_port.c:3393 console_emit_next_record kernel/printk/printk.c:2983 [inline] console_flush_all+0x867/0xfd0 kernel/printk/printk.c:3049 console_unlock+0x13b/0x4d0 kernel/printk/printk.c:3118 vprintk_emit+0x5a6/0x770 kernel/printk/printk.c:2348 _printk+0xd5/0x120 kernel/printk/printk.c:2373 int_irq+0x1bd/0x250 drivers/media/usb/gspca/gspca.c:104 __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:queue_work_on+0x269/0x380 kernel/workqueue.c:2397 Code: 75 19 e8 ba ae 36 00 eb 18 e8 b3 ae 36 00 e8 ee 90 58 0a 48 83 7c 24 10 00 74 e7 e8 a1 ae 36 00 fb 48 c7 44 24 20 0e 36 e0 45 <4b> c7 04 37 00 00 00 00 43 c7 44 37 09 00 00 00 00 66 43 c7 44 37 RSP: 0018:ffffc90000a182a0 EFLAGS: 00000246 RAX: ffffffff815cd47f RBX: 0000000000000000 RCX: ffff88801c2c0000 RDX: 0000000080000302 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90000a18398 R08: ffffffff815cd44f R09: 1ffffffff26e531f R10: dffffc0000000000 R11: fffffbfff26e5320 R12: 0000000002000001 R13: 0000000000000046 R14: 1ffff92000143058 R15: dffffc0000000000 __ieee80211_queue_skb_to_iface net/mac80211/rx.c:233 [inline] ieee80211_queue_skb_to_iface net/mac80211/rx.c:244 [inline] ieee80211_rx_h_mgmt+0x50f/0x710 net/mac80211/rx.c:4050 ieee80211_rx_handlers+0x67fc/0xb830 net/mac80211/rx.c:4208 ieee80211_invoke_rx_handlers net/mac80211/rx.c:4238 [inline] ieee80211_prepare_and_rx_handle+0x31ab/0x6360 net/mac80211/rx.c:5086 __ieee80211_rx_handle_packet net/mac80211/rx.c:5327 [inline] ieee80211_rx_list+0x2ce0/0x3780 net/mac80211/rx.c:5462 ieee80211_rx_napi+0x18a/0x3c0 net/mac80211/rx.c:5485 ieee80211_rx include/net/mac80211.h:5124 [inline] ieee80211_handle_queued_frames+0xe7/0x1e0 net/mac80211/main.c:439 tasklet_action_common+0x323/0x4d0 kernel/softirq.c:785 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:raw_spin_rq_unlock_irq+0x19/0x90 kernel/sched/sched.h:1428 Code: 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 41 57 41 56 53 48 89 fb 66 90 48 89 df e8 3e 75 5a 0a e8 99 de 35 00 fb 5b <41> 5e 41 5f e9 99 37 8b 0a f3 0f 1e fa 49 bf 00 00 00 00 00 fc ff RSP: 0018:ffffc90000b277e8 EFLAGS: 00000282 RAX: 62109d2ee46f8200 RBX: ffff8880b933ea00 RCX: ffffffff81701dfa RDX: dffffc0000000000 RSI: ffffffff8c0ad520 RDI: ffffffff8c606b40 RBP: ffffc90000b279f0 R08: ffffffff93729837 R09: 1ffffffff26e5306 R10: dffffc0000000000 R11: fffffbfff26e5307 R12: ffffc90000b27970 R13: 0000000000000000 R14: ffff88801c2c0770 R15: ffff88801c2c0000 __schedule+0x1a3a/0x4a60 kernel/sched/core.c:6533 preempt_schedule_common+0x84/0xd0 kernel/sched/core.c:6708 preempt_schedule+0xe1/0xf0 kernel/sched/core.c:6732 preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk.S:12 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline] _raw_spin_unlock_irqrestore+0x130/0x140 kernel/locking/spinlock.c:194 process_one_work kernel/workqueue.c:3231 [inline] process_scheduled_works+0xa2e/0x1830 kernel/workqueue.c:3312 worker_thread+0x86d/0xd40 kernel/workqueue.c:3390 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 gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting