INFO: task kworker/u4:9:8886 blocked for more than 143 seconds. Not tainted 5.15.0-rc5-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/u4:9 state:D stack:23776 pid: 8886 ppid: 2 flags:0x00004000 Workqueue: events_unbound fsnotify_connector_destroy_workfn Call Trace: context_switch kernel/sched/core.c:4940 [inline] __schedule+0xb44/0x5960 kernel/sched/core.c:6287 schedule+0xd3/0x270 kernel/sched/core.c:6366 schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1857 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+0x176/0x280 kernel/sched/completion.c:138 __synchronize_srcu+0x1f4/0x290 kernel/rcu/srcutree.c:930 fsnotify_connector_destroy_workfn+0x49/0xa0 fs/notify/mark.c:164 process_one_work+0x9bf/0x16b0 kernel/workqueue.c:2297 worker_thread+0x658/0x11f0 kernel/workqueue.c:2444 kthread+0x3e5/0x4d0 kernel/kthread.c:319 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 INFO: task kworker/u4:2:12723 blocked for more than 143 seconds. Not tainted 5.15.0-rc5-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/u4:2 state:D stack:24864 pid:12723 ppid: 2 flags:0x00004000 Workqueue: events_unbound fsnotify_mark_destroy_workfn Call Trace: context_switch kernel/sched/core.c:4940 [inline] __schedule+0xb44/0x5960 kernel/sched/core.c:6287 schedule+0xd3/0x270 kernel/sched/core.c:6366 schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1857 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+0x176/0x280 kernel/sched/completion.c:138 __synchronize_srcu+0x1f4/0x290 kernel/rcu/srcutree.c:930 fsnotify_mark_destroy_workfn+0xfd/0x340 fs/notify/mark.c:861 process_one_work+0x9bf/0x16b0 kernel/workqueue.c:2297 worker_thread+0x658/0x11f0 kernel/workqueue.c:2444 kthread+0x3e5/0x4d0 kernel/kthread.c:319 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 INFO: task kworker/1:20:16074 blocked for more than 143 seconds. Not tainted 5.15.0-rc5-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:20 state:D stack:27272 pid:16074 ppid: 2 flags:0x00004000 Workqueue: events cfg80211_destroy_iface_wk Call Trace: context_switch kernel/sched/core.c:4940 [inline] __schedule+0xb44/0x5960 kernel/sched/core.c:6287 schedule+0xd3/0x270 kernel/sched/core.c:6366 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6425 __mutex_lock_common kernel/locking/mutex.c:669 [inline] __mutex_lock+0xa34/0x12f0 kernel/locking/mutex.c:729 exp_funnel_lock kernel/rcu/tree_exp.h:322 [inline] synchronize_rcu_expedited+0x2d5/0x620 kernel/rcu/tree_exp.h:837 synchronize_rcu+0x132/0x190 kernel/rcu/tree.c:3746 ieee80211_if_remove+0x1d6/0x380 net/mac80211/iface.c:2086 ieee80211_del_iface+0x12/0x20 net/mac80211/cfg.c:144 rdev_del_virtual_intf net/wireless/rdev-ops.h:57 [inline] cfg80211_destroy_ifaces+0x302/0x850 net/wireless/core.c:354 cfg80211_destroy_iface_wk+0x1a/0x20 net/wireless/core.c:368 process_one_work+0x9bf/0x16b0 kernel/workqueue.c:2297 worker_thread+0x658/0x11f0 kernel/workqueue.c:2444 kthread+0x3e5/0x4d0 kernel/kthread.c:319 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 INFO: task syz-executor.2:550 blocked for more than 144 seconds. Not tainted 5.15.0-rc5-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack:28320 pid: 550 ppid: 5665 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:4940 [inline] __schedule+0xb44/0x5960 kernel/sched/core.c:6287 schedule+0xd3/0x270 kernel/sched/core.c:6366 synchronize_rcu_expedited+0x473/0x620 kernel/rcu/tree_exp.h:853 synchronize_rcu+0x132/0x190 kernel/rcu/tree.c:3746 synchronize_net+0x4c/0x60 net/core/dev.c:10960 packet_release+0xa2a/0xcc0 net/packet/af_packet.c:3100 __sock_release+0xcd/0x280 net/socket.c:649 sock_close+0x18/0x20 net/socket.c:1314 __fput+0x288/0x9f0 fs/file_table.c:280 task_work_run+0xdd/0x1a0 kernel/task_work.c:164 get_signal+0x1b35/0x2160 kernel/signal.c:2641 arch_do_signal_or_restart+0x2a9/0x1c40 arch/x86/kernel/signal.c:865 handle_signal_work kernel/entry/common.c:148 [inline] exit_to_user_mode_loop kernel/entry/common.c:172 [inline] exit_to_user_mode_prepare+0x17d/0x290 kernel/entry/common.c:207 __syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline] syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:300 do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f3df56f7a39 RSP: 002b:00007f3df2c6d188 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: 0000000000000004 RBX: 00007f3df57faf60 RCX: 00007f3df56f7a39 RDX: 0000000000000004 RSI: 0000000020000040 RDI: 0000000000000004 RBP: 00007f3df5751c5f R08: 00000000200000c0 R09: 0000000000000014 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffbf0a899f R14: 00007f3df2c6d300 R15: 0000000000022000 INFO: task syz-executor.5:567 blocked for more than 144 seconds. Not tainted 5.15.0-rc5-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.5 state:D stack:27568 pid: 567 ppid: 9358 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:4940 [inline] __schedule+0xb44/0x5960 kernel/sched/core.c:6287 schedule+0xd3/0x270 kernel/sched/core.c:6366 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6425 __mutex_lock_common kernel/locking/mutex.c:669 [inline] __mutex_lock+0xa34/0x12f0 kernel/locking/mutex.c:729 nl80211_pre_doit+0x23/0x620 net/wireless/nl80211.c:14927 genl_family_rcv_msg_doit+0x1ee/0x320 net/netlink/genetlink.c:726 genl_family_rcv_msg net/netlink/genetlink.c:775 [inline] genl_rcv_msg+0x328/0x580 net/netlink/genetlink.c:792 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2491 genl_rcv+0x24/0x40 net/netlink/genetlink.c:803 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x86d/0xda0 net/netlink/af_netlink.c:1916 sock_sendmsg_nosec net/socket.c:704 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:724 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2409 ___sys_sendmsg+0xf3/0x170 net/socket.c:2463 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2492 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7fdec2d7ca39 RSP: 002b:00007fdec02d1188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fdec2e80020 RCX: 00007fdec2d7ca39 RDX: 0000000000000000 RSI: 00000000200006c0 RDI: 0000000000000005 RBP: 00007fdec2dd6c5f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffeeb8d6edf R14: 00007fdec02d1300 R15: 0000000000022000 INFO: task syz-executor.3:575 blocked for more than 145 seconds. Not tainted 5.15.0-rc5-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.3 state:D stack:29168 pid: 575 ppid: 6551 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:4940 [inline] __schedule+0xb44/0x5960 kernel/sched/core.c:6287 schedule+0xd3/0x270 kernel/sched/core.c:6366 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6425 __mutex_lock_common kernel/locking/mutex.c:669 [inline] __mutex_lock+0xa34/0x12f0 kernel/locking/mutex.c:729 addrconf_del_ifaddr+0xdf/0x160 net/ipv6/addrconf.c:3064 inet6_ioctl+0x1d4/0x280 net/ipv6/af_inet6.c:571 sock_do_ioctl+0xcc/0x230 net/socket.c:1118 sock_ioctl+0x2f1/0x640 net/socket.c:1235 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl fs/ioctl.c:860 [inline] __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f7bb7753a39 RSP: 002b:00007f7bb4cc9188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f7bb7856f60 RCX: 00007f7bb7753a39 RDX: 00000000200001c0 RSI: 0000000000008936 RDI: 0000000000000003 RBP: 00007f7bb77adc5f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffedb27e24f R14: 00007f7bb4cc9300 R15: 0000000000022000 INFO: task syz-executor.1:586 blocked for more than 145 seconds. Not tainted 5.15.0-rc5-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.1 state:D stack:28152 pid: 586 ppid: 6547 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:4940 [inline] __schedule+0xb44/0x5960 kernel/sched/core.c:6287 schedule+0xd3/0x270 kernel/sched/core.c:6366 exp_funnel_lock kernel/rcu/tree_exp.h:313 [inline] synchronize_rcu_expedited+0x5ac/0x620 kernel/rcu/tree_exp.h:837 synchronize_net+0x3c/0x60 net/core/dev.c:10958 packet_release+0xa2a/0xcc0 net/packet/af_packet.c:3100 __sock_release+0xcd/0x280 net/socket.c:649 sock_close+0x18/0x20 net/socket.c:1314 __fput+0x288/0x9f0 fs/file_table.c:280 task_work_run+0xdd/0x1a0 kernel/task_work.c:164 tracehook_notify_resume include/linux/tracehook.h:189 [inline] exit_to_user_mode_loop kernel/entry/common.c:175 [inline] exit_to_user_mode_prepare+0x27e/0x290 kernel/entry/common.c:207 __syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline] syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:300 do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f0fa7c7067b RSP: 002b:00007ffdac78d780 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00007f0fa7c7067b RDX: 00007f0fa7dc5120 RSI: ffffffff8938bf78 RDI: 0000000000000003 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000001b2ce209cc R10: 0000000000000821 R11: 0000000000000293 R12: 00000000001a3a5e R13: 00000000000003e8 R14: 00007f0fa7dc0f60 R15: 00000000001a3a53 Showing all locks held in the system: 1 lock held by khungtaskd/27: #0: ffffffff8b981ee0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6446 1 lock held by kcompactd0/30: #0: ffffffff8baa4e88 (pcpu_drain_mutex){+.+.}-{3:3}, at: __drain_all_pages+0x4f/0x6c0 mm/page_alloc.c:3187 1 lock held by khugepaged/33: #0: ffffffff8ba65648 (lock#5){+.+.}-{3:3}, at: __lru_add_drain_all+0x65/0x760 mm/swap.c:782 1 lock held by in:imklog/6230: #0: ffff88801bf480f0 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:990 2 locks held by kworker/u4:9/8886: #0: ffff888010c69138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888010c69138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff888010c69138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1198 [inline] #0: ffff888010c69138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:634 [inline] #0: ffff888010c69138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:661 [inline] #0: ffff888010c69138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x8a3/0x16b0 kernel/workqueue.c:2268 #1: ffffc9001816fdb0 (connector_reaper_work){+.+.}-{0:0}, at: process_one_work+0x8d7/0x16b0 kernel/workqueue.c:2272 2 locks held by kworker/0:9/9120: 3 locks held by kworker/1:12/28837: #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1198 [inline] #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:634 [inline] #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:661 [inline] #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x8a3/0x16b0 kernel/workqueue.c:2268 #1: ffffc900042b7db0 (deferred_process_work){+.+.}-{0:0}, at: process_one_work+0x8d7/0x16b0 kernel/workqueue.c:2272 #2: ffffffff8d0e90e8 (rtnl_mutex){+.+.}-{3:3}, at: switchdev_deferred_process_work+0xa/0x20 net/switchdev/switchdev.c:74 2 locks held by kworker/u4:2/12723: #0: ffff888010c69138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888010c69138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff888010c69138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1198 [inline] #0: ffff888010c69138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:634 [inline] #0: ffff888010c69138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:661 [inline] #0: ffff888010c69138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x8a3/0x16b0 kernel/workqueue.c:2268 #1: ffffc9000b55fdb0 ((reaper_work).work){+.+.}-{0:0}, at: process_one_work+0x8d7/0x16b0 kernel/workqueue.c:2272 5 locks held by kworker/1:20/16074: #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1198 [inline] #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:634 [inline] #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:661 [inline] #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x8a3/0x16b0 kernel/workqueue.c:2268 #1: ffffc90007b97db0 ((work_completion)(&rdev->destroy_work)){+.+.}-{0:0}, at: process_one_work+0x8d7/0x16b0 kernel/workqueue.c:2272 #2: ffffffff8d0e90e8 (rtnl_mutex){+.+.}-{3:3}, at: cfg80211_destroy_iface_wk+0xe/0x20 net/wireless/core.c:367 #3: ffff888030e485e8 (&rdev->wiphy.mtx){+.+.}-{3:3}, at: wiphy_lock include/net/cfg80211.h:5311 [inline] #3: ffff888030e485e8 (&rdev->wiphy.mtx){+.+.}-{3:3}, at: cfg80211_destroy_ifaces+0x14c/0x850 net/wireless/core.c:350 #4: ffffffff8b98b268 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:322 [inline] #4: ffffffff8b98b268 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x2d5/0x620 kernel/rcu/tree_exp.h:837 2 locks held by syz-executor.2/550: #0: ffff88802fd51410 (&sb->s_type->i_mutex_key#13){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:786 [inline] #0: ffff88802fd51410 (&sb->s_type->i_mutex_key#13){+.+.}-{3:3}, at: __sock_release+0x86/0x280 net/socket.c:648 #1: ffffffff8b98b268 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:290 [inline] #1: ffffffff8b98b268 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x4fc/0x620 kernel/rcu/tree_exp.h:837 2 locks held by syz-executor.5/567: #0: ffffffff8d17cf70 (cb_lock){++++}-{3:3}, at: genl_rcv+0x15/0x40 net/netlink/genetlink.c:802 #1: ffffffff8d0e90e8 (rtnl_mutex){+.+.}-{3:3}, at: nl80211_pre_doit+0x23/0x620 net/wireless/nl80211.c:14927 1 lock held by syz-executor.3/575: #0: ffffffff8d0e90e8 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_del_ifaddr+0xdf/0x160 net/ipv6/addrconf.c:3064 1 lock held by syz-executor.1/586: #0: ffff888035405610 (&sb->s_type->i_mutex_key#13){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:786 [inline] #0: ffff888035405610 (&sb->s_type->i_mutex_key#13){+.+.}-{3:3}, at: __sock_release+0x86/0x280 net/socket.c:648 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 27 Comm: khungtaskd Not tainted 5.15.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:105 nmi_trigger_cpumask_backtrace+0x1ae/0x220 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:210 [inline] watchdog+0xc1d/0xf50 kernel/hung_task.c:295 kthread+0x3e5/0x4d0 kernel/kthread.c:319 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 28074 Comm: kworker/u4:1 Not tainted 5.15.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: bat_events batadv_purge_orig RIP: 0010:check_preemption_disabled+0x2/0x170 lib/smp_processor_id.c:13 Code: 1f 44 00 00 e8 8f 1c 62 f8 65 48 8b 3c 25 40 f0 01 00 e8 21 c0 19 f8 eb 99 0f 1f 44 00 00 0f 0b e9 23 ff ff ff cc cc cc 41 56 <41> 55 49 89 f5 41 54 55 48 89 fd 53 0f 1f 44 00 00 65 44 8b 25 cd RSP: 0018:ffffc900030cfbb0 EFLAGS: 00000046 RAX: 0000000000000000 RBX: ffff88802efe9c80 RCX: 1ffffffff204b934 RDX: 0000000000000000 RSI: ffffffff898bffe0 RDI: ffffffff89e431a0 RBP: ffff88802efe9c80 R08: 0000000000000000 R09: ffff88808a50a483 R10: ffffffff817d0a4d R11: 0000000000000000 R12: ffffffff88d6ce37 R13: ffff888080954dd0 R14: ffff88801ed62c00 R15: 0000000000000292 FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f1b15103000 CR3: 000000006f857000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: lockdep_recursion_inc kernel/locking/lockdep.c:433 [inline] lockdep_softirqs_on+0x131/0x340 kernel/locking/lockdep.c:4413 __local_bh_enable_ip+0xcd/0x120 kernel/softirq.c:371 spin_unlock_bh include/linux/spinlock.h:408 [inline] batadv_purge_orig_ref+0xeb7/0x1550 net/batman-adv/originator.c:1259 batadv_purge_orig+0x17/0x60 net/batman-adv/originator.c:1272 process_one_work+0x9bf/0x16b0 kernel/workqueue.c:2297 worker_thread+0x658/0x11f0 kernel/workqueue.c:2444 kthread+0x3e5/0x4d0 kernel/kthread.c:319 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: 44 00 00 add %r8b,(%rax) 3: e8 8f 1c 62 f8 callq 0xf8621c97 8: 65 48 8b 3c 25 40 f0 mov %gs:0x1f040,%rdi f: 01 00 11: e8 21 c0 19 f8 callq 0xf819c037 16: eb 99 jmp 0xffffffb1 18: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 1d: 0f 0b ud2 1f: e9 23 ff ff ff jmpq 0xffffff47 24: cc int3 25: cc int3 26: cc int3 27: 41 56 push %r14 * 29: 41 55 push %r13 <-- trapping instruction 2b: 49 89 f5 mov %rsi,%r13 2e: 41 54 push %r12 30: 55 push %rbp 31: 48 89 fd mov %rdi,%rbp 34: 53 push %rbx 35: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 3a: 65 gs 3b: 44 rex.R 3c: 8b .byte 0x8b 3d: 25 .byte 0x25 3e: cd .byte 0xcd