ci starts bisection 2023-03-04 06:08:23.828255292 +0000 UTC m=+244430.199508148 bisecting fixing commit since ed4643521e6af8ab8ed1e467630a85884d2696cf building syzkaller on 89bc860804252dbacb8c2bea60b9204859f4afd7 ensuring issue is reproducible on original commit ed4643521e6af8ab8ed1e467630a85884d2696cf testing commit ed4643521e6af8ab8ed1e467630a85884d2696cf gcc compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 6cebe14125e31ce61c239053260630df3fcd4cecf9639741f585f412a50ba4af run #0: basic kernel testing failed: BUG: program execution failed: executor NUM: EOF run #1: basic kernel testing failed: BUG: program execution failed: executor NUM: EOF run #2: crashed: INFO: task hung in crda_timeout_work run #3: crashed: INFO: task hung in netdev_run_todo run #4: crashed: INFO: task hung in crda_timeout_work run #5: crashed: INFO: task hung in netdev_run_todo run #6: crashed: INFO: task hung in netdev_run_todo run #7: crashed: INFO: task hung in netdev_run_todo run #8: crashed: INFO: task hung in r871xu_dev_remove run #9: crashed: INFO: task hung in crda_timeout_work run #10: crashed: INFO: task hung in netdev_run_todo run #11: crashed: INFO: task hung in r871xu_dev_remove run #12: crashed: INFO: task hung in r871xu_dev_remove run #13: crashed: INFO: task hung in r871xu_dev_remove run #14: crashed: INFO: task hung in r871xu_dev_remove run #15: crashed: INFO: task hung in r871xu_dev_remove run #16: crashed: INFO: task hung in r871xu_dev_remove run #17: crashed: INFO: task hung in netdev_run_todo run #18: crashed: INFO: task hung in reg_check_chans_work run #19: crashed: INFO: task hung in r871xu_dev_remove testing current HEAD 0988a0ea791999ebbf95693f2676381825b05033 testing commit 0988a0ea791999ebbf95693f2676381825b05033 gcc compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 7d1b370370c4b156c6234a71a23b675cb11b606eba6c24a1fc807d7eed4dfb20 run #0: basic kernel testing failed: BUG: program execution failed: executor NUM: EOF run #1: crashed: INFO: task hung in r871xu_dev_remove run #2: crashed: INFO: task hung in r871xu_dev_remove run #3: crashed: INFO: task hung in r871xu_dev_remove run #4: crashed: INFO: task hung in r871xu_dev_remove run #5: crashed: INFO: task hung in r871xu_dev_remove run #6: basic kernel testing failed: failed to copy binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/tmp/syz-executor2384955278" "root@10.128.1.4:./syz-executor2384955278"]: exit status 1 Connection timed out during banner exchange Connection to 10.128.1.4 port 22 timed out lost connection run #7: OK run #8: OK run #9: OK revisions tested: 2, total time: 34m42.642250312s (build: 14m47.432072355s, test: 18m40.79277465s) the crash still happens on HEAD commit msg: Merge tag 'for-v6.3-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply crash: INFO: task hung in r871xu_dev_remove INFO: task kworker/0:1:14 blocked for more than 143 seconds. Not tainted 6.2.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:1 state:D stack:24888 pid:14 ppid:2 flags:0x00004000 Workqueue: usb_hub_wq hub_event Call Trace: context_switch kernel/sched/core.c:5304 [inline] __schedule+0xc3e/0x5a70 kernel/sched/core.c:6622 schedule+0xde/0x1a0 kernel/sched/core.c:6698 schedule_timeout+0x22d/0x270 kernel/time/timer.c:2143 do_wait_for_common kernel/sched/completion.c:85 [inline] __wait_for_common+0x1ce/0x5c0 kernel/sched/completion.c:106 r871xu_dev_remove+0x69/0x3f0 drivers/staging/rtl8712/usb_intf.c:595 usb_unbind_interface+0x187/0x7f0 drivers/usb/core/driver.c:458 __device_release_driver drivers/base/dd.c:1240 [inline] device_release_driver_internal+0x368/0x530 drivers/base/dd.c:1263 bus_remove_device+0x1ed/0x3f0 drivers/base/bus.c:574 device_del+0x431/0xaa0 drivers/base/core.c:3775 usb_disable_device+0x2a0/0x660 drivers/usb/core/message.c:1420 usb_disconnect+0x269/0x870 drivers/usb/core/hub.c:2238 hub_port_connect drivers/usb/core/hub.c:5246 [inline] hub_port_connect_change drivers/usb/core/hub.c:5551 [inline] port_event drivers/usb/core/hub.c:5711 [inline] hub_event+0x17f7/0x4240 drivers/usb/core/hub.c:5793 process_one_work+0x8ba/0x15a0 kernel/workqueue.c:2390 process_scheduled_works kernel/workqueue.c:2453 [inline] worker_thread+0x73c/0xec0 kernel/workqueue.c:2539 kthread+0x298/0x340 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 INFO: task kworker/0:3:5055 blocked for more than 143 seconds. Not tainted 6.2.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:3 state:D stack:24320 pid:5055 ppid:2 flags:0x00004000 Workqueue: usb_hub_wq hub_event Call Trace: context_switch kernel/sched/core.c:5304 [inline] __schedule+0xc3e/0x5a70 kernel/sched/core.c:6622 schedule+0xde/0x1a0 kernel/sched/core.c:6698 schedule_timeout+0x22d/0x270 kernel/time/timer.c:2143 do_wait_for_common kernel/sched/completion.c:85 [inline] __wait_for_common+0x1ce/0x5c0 kernel/sched/completion.c:106 r871xu_dev_remove+0x69/0x3f0 drivers/staging/rtl8712/usb_intf.c:595 usb_unbind_interface+0x187/0x7f0 drivers/usb/core/driver.c:458 __device_release_driver drivers/base/dd.c:1240 [inline] device_release_driver_internal+0x368/0x530 drivers/base/dd.c:1263 bus_remove_device+0x1ed/0x3f0 drivers/base/bus.c:574 device_del+0x431/0xaa0 drivers/base/core.c:3775 usb_disable_device+0x2a0/0x660 drivers/usb/core/message.c:1420 usb_disconnect+0x269/0x870 drivers/usb/core/hub.c:2238 hub_port_connect drivers/usb/core/hub.c:5246 [inline] hub_port_connect_change drivers/usb/core/hub.c:5551 [inline] port_event drivers/usb/core/hub.c:5711 [inline] hub_event+0x17f7/0x4240 drivers/usb/core/hub.c:5793 process_one_work+0x8ba/0x15a0 kernel/workqueue.c:2390 process_scheduled_works kernel/workqueue.c:2453 [inline] worker_thread+0x73c/0xec0 kernel/workqueue.c:2539 kthread+0x298/0x340 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 INFO: task kworker/0:5:5057 blocked for more than 143 seconds. Not tainted 6.2.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:5 state:D stack:24904 pid:5057 ppid:2 flags:0x00004000 Workqueue: usb_hub_wq hub_event Call Trace: context_switch kernel/sched/core.c:5304 [inline] __schedule+0xc3e/0x5a70 kernel/sched/core.c:6622 schedule+0xde/0x1a0 kernel/sched/core.c:6698 schedule_timeout+0x22d/0x270 kernel/time/timer.c:2143 do_wait_for_common kernel/sched/completion.c:85 [inline] __wait_for_common+0x1ce/0x5c0 kernel/sched/completion.c:106 r871xu_dev_remove+0x69/0x3f0 drivers/staging/rtl8712/usb_intf.c:595 usb_unbind_interface+0x187/0x7f0 drivers/usb/core/driver.c:458 __device_release_driver drivers/base/dd.c:1240 [inline] device_release_driver_internal+0x368/0x530 drivers/base/dd.c:1263 bus_remove_device+0x1ed/0x3f0 drivers/base/bus.c:574 device_del+0x431/0xaa0 drivers/base/core.c:3775 usb_disable_device+0x2a0/0x660 drivers/usb/core/message.c:1420 usb_disconnect+0x269/0x870 drivers/usb/core/hub.c:2238 hub_port_connect drivers/usb/core/hub.c:5246 [inline] hub_port_connect_change drivers/usb/core/hub.c:5551 [inline] port_event drivers/usb/core/hub.c:5711 [inline] hub_event+0x17f7/0x4240 drivers/usb/core/hub.c:5793 process_one_work+0x8ba/0x15a0 kernel/workqueue.c:2390 process_scheduled_works kernel/workqueue.c:2453 [inline] worker_thread+0x73c/0xec0 kernel/workqueue.c:2539 kthread+0x298/0x340 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 INFO: task kworker/1:4:5058 blocked for more than 144 seconds. Not tainted 6.2.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:4 state:D stack:24824 pid:5058 ppid:2 flags:0x00004000 Workqueue: usb_hub_wq hub_event Call Trace: context_switch kernel/sched/core.c:5304 [inline] __schedule+0xc3e/0x5a70 kernel/sched/core.c:6622 schedule+0xde/0x1a0 kernel/sched/core.c:6698 schedule_timeout+0x22d/0x270 kernel/time/timer.c:2143 do_wait_for_common kernel/sched/completion.c:85 [inline] __wait_for_common+0x1ce/0x5c0 kernel/sched/completion.c:106 r871xu_dev_remove+0x69/0x3f0 drivers/staging/rtl8712/usb_intf.c:595 usb_unbind_interface+0x187/0x7f0 drivers/usb/core/driver.c:458 __device_release_driver drivers/base/dd.c:1240 [inline] device_release_driver_internal+0x368/0x530 drivers/base/dd.c:1263 bus_remove_device+0x1ed/0x3f0 drivers/base/bus.c:574 device_del+0x431/0xaa0 drivers/base/core.c:3775 usb_disable_device+0x2a0/0x660 drivers/usb/core/message.c:1420 usb_disconnect+0x269/0x870 drivers/usb/core/hub.c:2238 hub_port_connect drivers/usb/core/hub.c:5246 [inline] hub_port_connect_change drivers/usb/core/hub.c:5551 [inline] port_event drivers/usb/core/hub.c:5711 [inline] hub_event+0x17f7/0x4240 drivers/usb/core/hub.c:5793 process_one_work+0x8ba/0x15a0 kernel/workqueue.c:2390 process_scheduled_works kernel/workqueue.c:2453 [inline] worker_thread+0x73c/0xec0 kernel/workqueue.c:2539 kthread+0x298/0x340 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 INFO: task kworker/0:7:5600 blocked for more than 144 seconds. Not tainted 6.2.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:7 state:D stack:24896 pid:5600 ppid:2 flags:0x00004000 Workqueue: usb_hub_wq hub_event Call Trace: context_switch kernel/sched/core.c:5304 [inline] __schedule+0xc3e/0x5a70 kernel/sched/core.c:6622 schedule+0xde/0x1a0 kernel/sched/core.c:6698 schedule_timeout+0x22d/0x270 kernel/time/timer.c:2143 do_wait_for_common kernel/sched/completion.c:85 [inline] __wait_for_common+0x1ce/0x5c0 kernel/sched/completion.c:106 r871xu_dev_remove+0x69/0x3f0 drivers/staging/rtl8712/usb_intf.c:595 usb_unbind_interface+0x187/0x7f0 drivers/usb/core/driver.c:458 __device_release_driver drivers/base/dd.c:1240 [inline] device_release_driver_internal+0x368/0x530 drivers/base/dd.c:1263 bus_remove_device+0x1ed/0x3f0 drivers/base/bus.c:574 device_del+0x431/0xaa0 drivers/base/core.c:3775 usb_disable_device+0x2a0/0x660 drivers/usb/core/message.c:1420 usb_disconnect+0x269/0x870 drivers/usb/core/hub.c:2238 hub_port_connect drivers/usb/core/hub.c:5246 [inline] hub_port_connect_change drivers/usb/core/hub.c:5551 [inline] port_event drivers/usb/core/hub.c:5711 [inline] hub_event+0x17f7/0x4240 drivers/usb/core/hub.c:5793 process_one_work+0x8ba/0x15a0 kernel/workqueue.c:2390 process_scheduled_works kernel/workqueue.c:2453 [inline] worker_thread+0x73c/0xec0 kernel/workqueue.c:2539 kthread+0x298/0x340 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 INFO: task kworker/0:8:5603 blocked for more than 144 seconds. Not tainted 6.2.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:8 state:D stack:24776 pid:5603 ppid:2 flags:0x00004000 Workqueue: usb_hub_wq hub_event Call Trace: context_switch kernel/sched/core.c:5304 [inline] __schedule+0xc3e/0x5a70 kernel/sched/core.c:6622 schedule+0xde/0x1a0 kernel/sched/core.c:6698 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6757 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0xa3b/0x1350 kernel/locking/mutex.c:747 unregister_netdev+0xd/0x20 net/core/dev.c:10916 r871xu_dev_remove+0x226/0x3f0 drivers/staging/rtl8712/usb_intf.c:597 usb_unbind_interface+0x187/0x7f0 drivers/usb/core/driver.c:458 __device_release_driver drivers/base/dd.c:1240 [inline] device_release_driver_internal+0x368/0x530 drivers/base/dd.c:1263 bus_remove_device+0x1ed/0x3f0 drivers/base/bus.c:574 device_del+0x431/0xaa0 drivers/base/core.c:3775 usb_disable_device+0x2a0/0x660 drivers/usb/core/message.c:1420 usb_disconnect+0x269/0x870 drivers/usb/core/hub.c:2238 hub_port_connect drivers/usb/core/hub.c:5246 [inline] hub_port_connect_change drivers/usb/core/hub.c:5551 [inline] port_event drivers/usb/core/hub.c:5711 [inline] hub_event+0x17f7/0x4240 drivers/usb/core/hub.c:5793 process_one_work+0x8ba/0x15a0 kernel/workqueue.c:2390 process_scheduled_works kernel/workqueue.c:2453 [inline] worker_thread+0x73c/0xec0 kernel/workqueue.c:2539 kthread+0x298/0x340 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 Showing all locks held in the system: 3 locks held by kworker/0:0/7: #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline] #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:639 [inline] #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:666 [inline] #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7a0/0x15a0 kernel/workqueue.c:2361 #1: ffffc900000c7db8 ((work_completion)(&fw_work->work)){+.+.}-{0:0}, at: process_one_work+0x7cf/0x15a0 kernel/workqueue.c:2365 #2: ffffffff8c8fbf08 (rtnl_mutex){+.+.}-{3:3}, at: register_netdev+0xf/0x40 net/core/dev.c:10172 1 lock held by rcu_tasks_kthre/12: #0: ffffffff8b185630 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xd80 kernel/rcu/tasks.h:510 1 lock held by rcu_tasks_trace/13: #0: ffffffff8b185330 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xd80 kernel/rcu/tasks.h:510 5 locks held by kworker/0:1/14: #0: ffff888015841d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888015841d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff888015841d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline] #0: ffff888015841d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:639 [inline] #0: ffff888015841d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:666 [inline] #0: ffff888015841d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x7a0/0x15a0 kernel/workqueue.c:2361 #1: ffffc90000137db8 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x7cf/0x15a0 kernel/workqueue.c:2365 #2: ffff88801e91c190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:832 [inline] #2: ffff88801e91c190 (&dev->mutex){....}-{3:3}, at: hub_event+0x126/0x4240 drivers/usb/core/hub.c:5739 #3: ffff88807de97190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:832 [inline] #3: ffff88807de97190 (&dev->mutex){....}-{3:3}, at: usb_disconnect+0xeb/0x870 drivers/usb/core/hub.c:2229 #4: ffff88807e92b118 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:832 [inline] #4: ffff88807e92b118 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1063 [inline] #4: ffff88807e92b118 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0x8c/0x530 drivers/base/dd.c:1260 3 locks held by kworker/1:0/22: #0: ffff888024c43538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888024c43538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff888024c43538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline] #0: ffff888024c43538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:639 [inline] #0: ffff888024c43538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:666 [inline] #0: ffff888024c43538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x7a0/0x15a0 kernel/workqueue.c:2361 #1: ffffc900001c7db8 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work+0x7cf/0x15a0 kernel/workqueue.c:2365 #2: ffffffff8c8fbf08 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0xd/0x20 net/ipv6/addrconf.c:4629 1 lock held by khungtaskd/28: #0: ffffffff8b186180 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x340 kernel/locking/lockdep.c:6495 3 locks held by kworker/1:2/894: #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline] #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:639 [inline] #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:666 [inline] #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7a0/0x15a0 kernel/workqueue.c:2361 #1: ffffc90004adfdb8 ((work_completion)(&fw_work->work)){+.+.}-{0:0}, at: process_one_work+0x7cf/0x15a0 kernel/workqueue.c:2365 #2: ffffffff8c8fbf08 (rtnl_mutex){+.+.}-{3:3}, at: register_netdev+0xf/0x40 net/core/dev.c:10172 3 locks held by kworker/0:2/1108: #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline] #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:639 [inline] #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:666 [inline] #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7a0/0x15a0 kernel/workqueue.c:2361 #1: ffffc90005377db8 ((work_completion)(&fw_work->work)){+.+.}-{0:0}, at: process_one_work+0x7cf/0x15a0 kernel/workqueue.c:2365 #2: ffffffff8c8fbf08 (rtnl_mutex){+.+.}-{3:3}, at: register_netdev+0xf/0x40 net/core/dev.c:10172 3 locks held by kworker/1:3/4366: #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline] #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:639 [inline] #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:666 [inline] #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7a0/0x15a0 kernel/workqueue.c:2361 #1: ffffc90005abfdb8 (deferred_process_work){+.+.}-{0:0}, at: process_one_work+0x7cf/0x15a0 kernel/workqueue.c:2365 #2: ffffffff8c8fbf08 (rtnl_mutex){+.+.}-{3:3}, at: switchdev_deferred_process_work+0x9/0x20 net/switchdev/switchdev.c:75 2 locks held by dhcpcd/4617: #0: ffffffff8c8fbf08 (rtnl_mutex){+.+.}-{3:3}, at: devinet_ioctl+0x186/0x17a0 net/ipv4/devinet.c:1071 #1: ffff88807c91cdf0 (&padapter->mutex_start){+.+.}-{3:3}, at: netdev_open+0x34/0x5f0 drivers/staging/rtl8712/os_intfs.c:391 2 locks held by getty/4713: #0: ffff888149f9a098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x23/0x80 drivers/tty/tty_ldisc.c:244 #1: ffffc900015a02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xb73/0x1040 drivers/tty/n_tty.c:2177 5 locks held by kworker/0:3/5055: #0: ffff888015841d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888015841d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff888015841d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline] #0: ffff888015841d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:639 [inline] #0: ffff888015841d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:666 [inline] #0: ffff888015841d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x7a0/0x15a0 kernel/workqueue.c:2361 #1: ffffc900039cfdb8 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x7cf/0x15a0 kernel/workqueue.c:2365 #2: ffff88814716a190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:832 [inline] #2: ffff88814716a190 (&dev->mutex){....}-{3:3}, at: hub_event+0x126/0x4240 drivers/usb/core/hub.c:5739 #3: ffff888016865190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:832 [inline] #3: ffff888016865190 (&dev->mutex){....}-{3:3}, at: usb_disconnect+0xeb/0x870 drivers/usb/core/hub.c:2229 #4: ffff88801d9a6118 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:832 [inline] #4: ffff88801d9a6118 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1063 [inline] #4: ffff88801d9a6118 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0x8c/0x530 drivers/base/dd.c:1260 3 locks held by kworker/0:4/5056: #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline] #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:639 [inline] #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:666 [inline] #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7a0/0x15a0 kernel/workqueue.c:2361 #1: ffffc900039dfdb8 ((work_completion)(&fw_work->work)){+.+.}-{0:0}, at: process_one_work+0x7cf/0x15a0 kernel/workqueue.c:2365 #2: ffffffff8c8fbf08 (rtnl_mutex){+.+.}-{3:3}, at: register_netdev+0xf/0x40 net/core/dev.c:10172 5 locks held by kworker/0:5/5057: #0: ffff888015841d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888015841d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff888015841d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline] #0: ffff888015841d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:639 [inline] #0: ffff888015841d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:666 [inline] #0: ffff888015841d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x7a0/0x15a0 kernel/workqueue.c:2361 #1: ffffc900039efdb8 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x7cf/0x15a0 kernel/workqueue.c:2365 #2: ffff888147283190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:832 [inline] #2: ffff888147283190 (&dev->mutex){....}-{3:3}, at: hub_event+0x126/0x4240 drivers/usb/core/hub.c:5739 #3: ffff88807de92190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:832 [inline] #3: ffff88807de92190 (&dev->mutex){....}-{3:3}, at: usb_disconnect+0xeb/0x870 drivers/usb/core/hub.c:2229 #4: ffff888021bbe118 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:832 [inline] #4: ffff888021bbe118 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1063 [inline] #4: ffff888021bbe118 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0x8c/0x530 drivers/base/dd.c:1260 5 locks held by kworker/1:4/5058: #0: ffff888015841d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888015841d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff888015841d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline] #0: ffff888015841d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:639 [inline] #0: ffff888015841d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:666 [inline] #0: ffff888015841d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x7a0/0x15a0 kernel/workqueue.c:2361 #1: ffffc9000391fdb8 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x7cf/0x15a0 kernel/workqueue.c:2365 #2: ffff88801efe4190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:832 [inline] #2: ffff88801efe4190 (&dev->mutex){....}-{3:3}, at: hub_event+0x126/0x4240 drivers/usb/core/hub.c:5739 #3: ffff888078308190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:832 [inline] #3: ffff888078308190 (&dev->mutex){....}-{3:3}, at: usb_disconnect+0xeb/0x870 drivers/usb/core/hub.c:2229 #4: ffff88807f355118 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:832 [inline] #4: ffff88807f355118 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1063 [inline] #4: ffff88807f355118 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0x8c/0x530 drivers/base/dd.c:1260 4 locks held by udevd/5555: #0: ffff88806e2ad2f0 (&p->lock){+.+.}-{3:3}, at: seq_read_iter+0xc2/0x10f0 fs/seq_file.c:182 #1: ffff88807a8d5488 (&of->mutex){+.+.}-{3:3}, at: kernfs_seq_start+0x44/0x390 fs/kernfs/file.c:154 #2: ffff88806e2290f0 (kn->active#23){++++}-{0:0}, at: kernfs_seq_start+0x67/0x390 fs/kernfs/file.c:155 #3: ffff88807e41a190 (&dev->mutex){....}-{3:3}, at: device_lock_interruptible include/linux/device.h:837 [inline] #3: ffff88807e41a190 (&dev->mutex){....}-{3:3}, at: manufacturer_show+0x1f/0x80 drivers/usb/core/sysfs.c:142 3 locks held by kworker/1:6/5557: #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline] #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:639 [inline] #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:666 [inline] #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7a0/0x15a0 kernel/workqueue.c:2361 #1: ffffc90004f87db8 ((work_completion)(&fw_work->work)){+.+.}-{0:0}, at: process_one_work+0x7cf/0x15a0 kernel/workqueue.c:2365 #2: ffffffff8c8fbf08 (rtnl_mutex){+.+.}-{3:3}, at: register_netdev+0xf/0x40 net/core/dev.c:10172 3 locks held by kworker/0:6/5563: #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline] #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:639 [inline] #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:666 [inline] #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7a0/0x15a0 kernel/workqueue.c:2361 #1: ffffc90004fb7db8 ((work_completion)(&fw_work->work)){+.+.}-{0:0}, at: process_one_work+0x7cf/0x15a0 kernel/workqueue.c:2365 #2: ffffffff8c8fbf08 (rtnl_mutex){+.+.}-{3:3}, at: register_netdev+0xf/0x40 net/core/dev.c:10172 5 locks held by kworker/0:7/5600: #0: ffff888015841d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888015841d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff888015841d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline] #0: ffff888015841d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:639 [inline] #0: ffff888015841d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:666 [inline] #0: ffff888015841d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x7a0/0x15a0 kernel/workqueue.c:2361 #1: ffffc90005077db8 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x7cf/0x15a0 kernel/workqueue.c:2365 #2: ffff88801f0b3190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:832 [inline] #2: ffff88801f0b3190 (&dev->mutex){....}-{3:3}, at: hub_event+0x126/0x4240 drivers/usb/core/hub.c:5739 #3: ffff88807de95190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:832 [inline] #3: ffff88807de95190 (&dev->mutex){....}-{3:3}, at: usb_disconnect+0xeb/0x870 drivers/usb/core/hub.c:2229 #4: ffff88807a46c118 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:832 [inline] #4: ffff88807a46c118 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1063 [inline] #4: ffff88807a46c118 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0x8c/0x530 drivers/base/dd.c:1260 6 locks held by kworker/0:8/5603: #0: ffff888015841d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888015841d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff888015841d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline] #0: ffff888015841d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:639 [inline] #0: ffff888015841d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:666 [inline] #0: ffff888015841d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x7a0/0x15a0 kernel/workqueue.c:2361 #1: ffffc90005057db8 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x7cf/0x15a0 kernel/workqueue.c:2365 #2: ffff888147287190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:832 [inline] #2: ffff888147287190 (&dev->mutex){....}-{3:3}, at: hub_event+0x126/0x4240 drivers/usb/core/hub.c:5739 #3: ffff88807e41a190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:832 [inline] #3: ffff88807e41a190 (&dev->mutex){....}-{3:3}, at: usb_disconnect+0xeb/0x870 drivers/usb/core/hub.c:2229 #4: ffff88801f0ec118 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:832 [inline] #4: ffff88801f0ec118 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1063 [inline] #4: ffff88801f0ec118 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0x8c/0x530 drivers/base/dd.c:1260 #5: ffffffff8c8fbf08 (rtnl_mutex){+.+.}-{3:3}, at: unregister_netdev+0xd/0x20 net/core/dev.c:10916 4 locks held by udevd/5623: #0: ffff88801a2869e0 (&p->lock){+.+.}-{3:3}, at: seq_read_iter+0xc2/0x10f0 fs/seq_file.c:182 #1: ffff88806bf13088 (&of->mutex){+.+.}-{3:3}, at: kernfs_seq_start+0x44/0x390 fs/kernfs/file.c:154 #2: ffff88806d840830 (kn->active#23){++++}-{0:0}, at: kernfs_seq_start+0x67/0x390 fs/kernfs/file.c:155 #3: ffff88807de92190 (&dev->mutex){....}-{3:3}, at: device_lock_interruptible include/linux/device.h:837 [inline] #3: ffff88807de92190 (&dev->mutex){....}-{3:3}, at: manufacturer_show+0x1f/0x80 drivers/usb/core/sysfs.c:142 4 locks held by udevd/5624: #0: ffff88801ea4c790 (&p->lock){+.+.}-{3:3}, at: seq_read_iter+0xc2/0x10f0 fs/seq_file.c:182 #1: ffff8880699cd488 (&of->mutex){+.+.}-{3:3}, at: kernfs_seq_start+0x44/0x390 fs/kernfs/file.c:154 #2: ffff88807c22aa00 (kn->active#23){++++}-{0:0}, at: kernfs_seq_start+0x67/0x390 fs/kernfs/file.c:155 #3: ffff888016865190 (&dev->mutex){....}-{3:3}, at: device_lock_interruptible include/linux/device.h:837 [inline] #3: ffff888016865190 (&dev->mutex){....}-{3:3}, at: manufacturer_show+0x1f/0x80 drivers/usb/core/sysfs.c:142 4 locks held by udevd/5631: #0: ffff88806a6e82f0 (&p->lock){+.+.}-{3:3}, at: seq_read_iter+0xc2/0x10f0 fs/seq_file.c:182 #1: ffff88806e504088 (&of->mutex){+.+.}-{3:3}, at: kernfs_seq_start+0x44/0x390 fs/kernfs/file.c:154 #2: ffff888079bd53a8 (kn->active#23){++++}-{0:0}, at: kernfs_seq_start+0x67/0x390 fs/kernfs/file.c:155 #3: ffff88807de97190 (&dev->mutex){....}-{3:3}, at: device_lock_interruptible include/linux/device.h:837 [inline] #3: ffff88807de97190 (&dev->mutex){....}-{3:3}, at: manufacturer_show+0x1f/0x80 drivers/usb/core/sysfs.c:142 3 locks held by kworker/0:10/5641: #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline] #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:639 [inline] #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:666 [inline] #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7a0/0x15a0 kernel/workqueue.c:2361 #1: ffffc90005227db8 ((work_completion)(&fw_work->work)){+.+.}-{0:0}, at: process_one_work+0x7cf/0x15a0 kernel/workqueue.c:2365 #2: ffffffff8c8fbf08 (rtnl_mutex){+.+.}-{3:3}, at: register_netdev+0xf/0x40 net/core/dev.c:10172 3 locks held by kworker/0:11/5648: #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline] #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:639 [inline] #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:666 [inline] #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7a0/0x15a0 kernel/workqueue.c:2361 #1: ffffc9000526fdb8 ((work_completion)(&fw_work->work)){+.+.}-{0:0}, at: process_one_work+0x7cf/0x15a0 kernel/workqueue.c:2365 #2: ffffffff8c8fbf08 (rtnl_mutex){+.+.}-{3:3}, at: register_netdev+0xf/0x40 net/core/dev.c:10172 3 locks held by kworker/0:12/5649: #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline] #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:639 [inline] #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:666 [inline] #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7a0/0x15a0 kernel/workqueue.c:2361 #1: ffffc9000527fdb8 ((work_completion)(&fw_work->work)){+.+.}-{0:0}, at: process_one_work+0x7cf/0x15a0 kernel/workqueue.c:2365 #2: ffffffff8c8fbf08 (rtnl_mutex){+.+.}-{3:3}, at: register_netdev+0xf/0x40 net/core/dev.c:10172 3 locks held by kworker/u4:7/5788: 4 locks held by udevd/6852: #0: ffff88807d87db08 (&p->lock){+.+.}-{3:3}, at: seq_read_iter+0xc2/0x10f0 fs/seq_file.c:182 #1: ffff88806ca7f888 (&of->mutex){+.+.}-{3:3}, at: kernfs_seq_start+0x44/0x390 fs/kernfs/file.c:154 #2: ffff888027858918 (kn->active#23){++++}-{0:0}, at: kernfs_seq_start+0x67/0x390 fs/kernfs/file.c:155 #3: ffff88807de95190 (&dev->mutex){....}-{3:3}, at: device_lock_interruptible include/linux/device.h:837 [inline] #3: ffff88807de95190 (&dev->mutex){....}-{3:3}, at: manufacturer_show+0x1f/0x80 drivers/usb/core/sysfs.c:142 3 locks held by kworker/0:13/7340: #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline] #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:639 [inline] #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:666 [inline] #0: ffff888010470d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7a0/0x15a0 kernel/workqueue.c:2361 #1: ffffc90003a27db8 ((work_completion)(&fw_work->work)){+.+.}-{0:0}, at: process_one_work+0x7cf/0x15a0 kernel/workqueue.c:2365 #2: ffffffff8c8fbf08 (rtnl_mutex){+.+.}-{3:3}, at: register_netdev+0xf/0x40 net/core/dev.c:10172 3 locks held by kworker/0:16/7972: #0: ffff888024c43538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888024c43538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff888024c43538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline] #0: ffff888024c43538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:639 [inline] #0: ffff888024c43538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:666 [inline] #0: ffff888024c43538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x7a0/0x15a0 kernel/workqueue.c:2361 #1: ffffc9000630fdb8 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work+0x7cf/0x15a0 kernel/workqueue.c:2365 #2: ffffffff8c8fbf08 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0xd/0x20 net/ipv6/addrconf.c:4629 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.2.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x64/0xb0 lib/dump_stack.c:106 nmi_cpu_backtrace+0x1db/0x290 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x25d/0x340 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline] watchdog+0xa5c/0xe20 kernel/hung_task.c:379 kthread+0x298/0x340 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 41 Comm: kworker/u4:2 Not tainted 6.2.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023 Workqueue: bat_events batadv_nc_worker RIP: 0010:find_held_lock+0xee/0x110 kernel/locking/lockdep.c:5182 Code: ff df 4c 89 f2 48 c1 ea 03 0f b6 14 02 4c 89 f0 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 11 5b 45 89 3e 4c 89 e0 5d 41 5c 41 5d <41> 5e 41 5f c3 4c 89 f7 e8 35 33 60 00 eb e5 e8 4e 32 60 00 eb ab RSP: 0018:ffffc90000b27ba8 EFLAGS: 00000097 RAX: ffff888015b88a88 RBX: 0000000000000003 RCX: ffffc90000b27c10 RDX: 0000000000000004 RSI: ffffffff8b186180 RDI: ffff888015b88a88 RBP: 1ffff92000164f7a R08: 0000000000000001 R09: ffffffff8cf2e217 R10: fffffbfff19e5c42 R11: 1ffffffff16321b9 R12: ffffffff8b186180 R13: ffff888015b88a30 R14: ffffc90000b27c10 R15: 0000000000000002 FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fdc7f1a0000 CR3: 000000007147b000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __lock_release kernel/locking/lockdep.c:5344 [inline] lock_release+0x229/0x780 kernel/locking/lockdep.c:5689 rcu_lock_release include/linux/rcupdate.h:332 [inline] rcu_read_unlock include/linux/rcupdate.h:806 [inline] batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:412 [inline] batadv_nc_worker+0x668/0xd90 net/batman-adv/network-coding.c:719 process_one_work+0x8ba/0x15a0 kernel/workqueue.c:2390 worker_thread+0x59c/0xec0 kernel/workqueue.c:2537 kthread+0x298/0x340 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308