IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready ====================================================== IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready WARNING: possible circular locking dependency detected 4.14.161-syzkaller #0 Not tainted ------------------------------------------------------ syz-executor.3/6804 is trying to acquire lock: (event_mutex){+.+.}, at: [] perf_trace_init+0x50/0x9d0 kernel/trace/trace_event_perf.c:216 but task is already holding lock: (&cpuctx_mutex/1){+.+.}, at: [] perf_event_ctx_lock_nested+0x109/0x250 kernel/events/core.c:1235 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #5 (&cpuctx_mutex/1){+.+.}: lock_acquire+0x173/0x400 kernel/locking/lockdep.c:3994 __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0xef/0x14c0 kernel/locking/mutex.c:893 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:908 mutex_lock_double kernel/events/core.c:9904 [inline] __perf_event_ctx_lock_double kernel/events/core.c:9963 [inline] SYSC_perf_event_open+0x110d/0x21b0 kernel/events/core.c:10225 SyS_perf_event_open+0x9/0x10 kernel/events/core.c:9983 do_syscall_64+0x1c7/0x5b0 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 -> #4 (&cpuctx_mutex){+.+.}: lock_acquire+0x173/0x400 kernel/locking/lockdep.c:3994 __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0xef/0x14c0 kernel/locking/mutex.c:893 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:908 perf_event_init_cpu+0xb6/0x160 kernel/events/core.c:11223 perf_event_init+0x2cd/0x301 kernel/events/core.c:11270 start_kernel+0x365/0x642 init/main.c:620 x86_64_start_reservations+0x29/0x2b arch/x86/kernel/head64.c:399 x86_64_start_kernel+0x76/0x79 arch/x86/kernel/head64.c:380 secondary_startup_64+0xa5/0xb0 arch/x86/kernel/head_64.S:240 -> #3 (pmus_lock){+.+.}: lock_acquire+0x173/0x400 kernel/locking/lockdep.c:3994 __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0xef/0x14c0 kernel/locking/mutex.c:893 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:908 perf_event_init_cpu+0x2a/0x160 kernel/events/core.c:11217 cpuhp_invoke_callback+0x191/0x1610 kernel/cpu.c:184 cpuhp_up_callbacks kernel/cpu.c:573 [inline] _cpu_up+0x21e/0x540 kernel/cpu.c:1135 do_cpu_up+0xf1/0x110 kernel/cpu.c:1170 cpu_up+0xe/0x10 kernel/cpu.c:1178 smp_init+0x69/0x10c kernel/smp.c:578 kernel_init_freeable+0x2d2/0x4ae init/main.c:1066 kernel_init+0xc/0x105 init/main.c:998 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404 -> #2 (cpu_hotplug_lock.rw_sem){++++}: lock_acquire+0x173/0x400 kernel/locking/lockdep.c:3994 percpu_down_read_preempt_disable include/linux/percpu-rwsem.h:36 [inline] percpu_down_read include/linux/percpu-rwsem.h:59 [inline] cpus_read_lock+0x38/0xa0 kernel/cpu.c:295 static_key_slow_inc+0xd/0x20 kernel/jump_label.c:123 tracepoint_add_func kernel/tracepoint.c:223 [inline] tracepoint_probe_register_prio+0x4de/0x6e0 kernel/tracepoint.c:283 tracepoint_probe_register+0xe/0x10 kernel/tracepoint.c:304 trace_event_reg+0x14d/0x340 kernel/trace/trace_events.c:305 perf_trace_event_reg kernel/trace/trace_event_perf.c:122 [inline] perf_trace_event_init kernel/trace/trace_event_perf.c:197 [inline] perf_trace_init+0x3ce/0x9d0 kernel/trace/trace_event_perf.c:221 perf_tp_event_init+0x68/0xd0 kernel/events/core.c:8106 perf_try_init_event+0x138/0x1c0 kernel/events/core.c:9342 IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready perf_init_event kernel/events/core.c:9380 [inline] perf_event_alloc+0xe0b/0x2220 kernel/events/core.c:9640 IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready SYSC_perf_event_open+0x447/0x21b0 kernel/events/core.c:10097 SyS_perf_event_open+0x9/0x10 kernel/events/core.c:9983 IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready do_syscall_64+0x1c7/0x5b0 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 -> #1 (tracepoints_mutex){+.+.}: lock_acquire+0x173/0x400 kernel/locking/lockdep.c:3994 __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0xef/0x14c0 kernel/locking/mutex.c:893 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:908 tracepoint_probe_register_prio+0x30/0x6e0 kernel/tracepoint.c:279 tracepoint_probe_register+0xe/0x10 kernel/tracepoint.c:304 hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network trace_event_reg+0x14d/0x340 kernel/trace/trace_events.c:305 hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network perf_trace_event_reg kernel/trace/trace_event_perf.c:122 [inline] perf_trace_event_init kernel/trace/trace_event_perf.c:197 [inline] perf_trace_init+0x3ce/0x9d0 kernel/trace/trace_event_perf.c:221 perf_tp_event_init+0x68/0xd0 kernel/events/core.c:8106 perf_try_init_event+0x138/0x1c0 kernel/events/core.c:9342 perf_init_event kernel/events/core.c:9380 [inline] perf_event_alloc+0xe0b/0x2220 kernel/events/core.c:9640 SYSC_perf_event_open+0x447/0x21b0 kernel/events/core.c:10097 SyS_perf_event_open+0x9/0x10 kernel/events/core.c:9983 do_syscall_64+0x1c7/0x5b0 arch/x86/entry/common.c:292 IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready entry_SYSCALL_64_after_hwframe+0x42/0xb7 IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready -> #0 8021q: adding VLAN 0 to HW filter on device batadv0 ( kobject: 'vlan0' (ffff888086af8980): kobject_add_internal: parent: 'mesh', set: '' event_mutex){+.+.}: check_prev_add kernel/locking/lockdep.c:1901 [inline] check_prevs_add kernel/locking/lockdep.c:2018 [inline] validate_chain kernel/locking/lockdep.c:2460 [inline] __lock_acquire+0x2e94/0x4500 kernel/locking/lockdep.c:3487 lock_acquire+0x173/0x400 kernel/locking/lockdep.c:3994 __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0xef/0x14c0 kernel/locking/mutex.c:893 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:908 perf_trace_init+0x50/0x9d0 kernel/trace/trace_event_perf.c:216 perf_tp_event_init+0x68/0xd0 kernel/events/core.c:8106 perf_try_init_event+0xcf/0x1c0 kernel/events/core.c:9342 perf_init_event kernel/events/core.c:9380 [inline] perf_event_alloc+0xe0b/0x2220 kernel/events/core.c:9640 SYSC_perf_event_open+0x447/0x21b0 kernel/events/core.c:10097 SyS_perf_event_open+0x9/0x10 kernel/events/core.c:9983 do_syscall_64+0x1c7/0x5b0 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 other info that might help us debug this: IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready Chain exists of: event_mutex --> &cpuctx_mutex --> &cpuctx_mutex/1 Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&cpuctx_mutex/1); lock(&cpuctx_mutex); lock(&cpuctx_mutex/1); lock(event_mutex); *** DEADLOCK *** 2 locks held by syz-executor.3/6804: #0: (&pmus_srcu){....}, at: [] fdput include/linux/file.h:40 [inline] #0: (&pmus_srcu){....}, at: [] perf_cgroup_connect kernel/events/core.c:843 [inline] #0: (&pmus_srcu){....}, at: [] perf_event_alloc+0xc71/0x2220 kernel/events/core.c:9635 #1: (&cpuctx_mutex/1){+.+.}, at: [] perf_event_ctx_lock_nested+0x109/0x250 kernel/events/core.c:1235 stack backtrace: CPU: 1 PID: 6804 Comm: syz-executor.3 Not tainted 4.14.161-syzkaller #0 8021q: adding VLAN 0 to HW filter on device team0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0xf7/0x13b lib/dump_stack.c:58 print_circular_bug.isra.40.cold.67+0x1bd/0x27d kernel/locking/lockdep.c:1258 check_prev_add kernel/locking/lockdep.c:1901 [inline] check_prevs_add kernel/locking/lockdep.c:2018 [inline] validate_chain kernel/locking/lockdep.c:2460 [inline] __lock_acquire+0x2e94/0x4500 kernel/locking/lockdep.c:3487 IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready lock_acquire+0x173/0x400 kernel/locking/lockdep.c:3994 __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0xef/0x14c0 kernel/locking/mutex.c:893 IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:908 perf_trace_init+0x50/0x9d0 kernel/trace/trace_event_perf.c:216 perf_tp_event_init+0x68/0xd0 kernel/events/core.c:8106 perf_try_init_event+0xcf/0x1c0 kernel/events/core.c:9342 perf_init_event kernel/events/core.c:9380 [inline] perf_event_alloc+0xe0b/0x2220 kernel/events/core.c:9640 SYSC_perf_event_open+0x447/0x21b0 kernel/events/core.c:10097 kobject: 'batadv0' (ffff88809b495ab0): kobject_add_internal: parent: 'net', set: 'devices' SyS_perf_event_open+0x9/0x10 kernel/events/core.c:9983 do_syscall_64+0x1c7/0x5b0 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x459879 RSP: 002b:00007f48e20ddc78 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000459879 RDX: 0000000000000000 RSI: ffffffffffffffff RDI: 0000000020000000 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000003 R11: 0000000000000246 R12: 00007f48e20de6d4 R13: 00000000004c66e4 R14: 00000000004db758 R15: 00000000ffffffff kobject: 'batadv0' (ffff88809b495ab0): kobject_uevent_env kobject: 'batadv0' (ffff88809b495ab0): fill_kobj_path: path = '/devices/virtual/net/batadv0' kobject: 'queues' (ffff88809a73aa48): kobject_add_internal: parent: 'batadv0', set: '' kobject: 'queues' (ffff88809a73aa48): kobject_uevent_env kobject: 'queues' (ffff88809a73aa48): kobject_uevent_env: filter function caused the event to drop! kobject: 'rx-0' (ffff888099c98190): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'rx-0' (ffff888099c98190): kobject_uevent_env kobject: 'rx-0' (ffff888099c98190): fill_kobj_path: path = '/devices/virtual/net/batadv0/queues/rx-0' kobject: 'tx-0' (ffff88807f648d58): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-0' (ffff88807f648d58): kobject_uevent_env kobject: 'tx-0' (ffff88807f648d58): fill_kobj_path: path = '/devices/virtual/net/batadv0/queues/tx-0' kobject: 'mesh' (ffff8880a9586b00): kobject_add_internal: parent: 'batadv0', set: '' IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready kobject: 'loop0' (ffff8880a4978120): kobject_uevent_env kobject: 'loop0' (ffff8880a4978120): fill_kobj_path: path = '/devices/virtual/block/loop0' IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready kobject: 'loop3' (ffff8880a4a5d3a0): kobject_uevent_env IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready kobject: 'loop3' (ffff8880a4a5d3a0): fill_kobj_path: path = '/devices/virtual/block/loop3' IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready kobject: 'veth0_to_hsr' (ffff888083e3d1f0): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'veth0_to_hsr' (ffff888083e3d1f0): kobject_uevent_env kobject: 'veth0_to_hsr' (ffff888083e3d1f0): fill_kobj_path: path = '/devices/virtual/net/veth0_to_hsr' kobject: 'queues' (ffff88809a73a548): kobject_add_internal: parent: 'veth0_to_hsr', set: '' kobject: 'queues' (ffff88809a73a548): kobject_uevent_env kobject: 'queues' (ffff88809a73a548): kobject_uevent_env: filter function caused the event to drop! kobject: 'rx-0' (ffff8880a1f76610): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'rx-0' (ffff8880a1f76610): kobject_uevent_env kobject: 'loop0' (ffff8880a4978120): kobject_uevent_env kobject: 'rx-0' (ffff8880a1f76610): fill_kobj_path: path = '/devices/virtual/net/veth0_to_hsr/queues/rx-0' kobject: 'loop0' (ffff8880a4978120): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'tx-0' (ffff88809245e818): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-0' (ffff88809245e818): kobject_uevent_env kobject: 'tx-0' (ffff88809245e818): fill_kobj_path: path = '/devices/virtual/net/veth0_to_hsr/queues/tx-0' kobject: 'batman_adv' (ffff888097568c80): kobject_add_internal: parent: 'veth0_to_hsr', set: '' kobject: 'hsr_slave_0' (ffff88809989b1b0): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'hsr_slave_0' (ffff88809989b1b0): kobject_uevent_env kobject: 'hsr_slave_0' (ffff88809989b1b0): fill_kobj_path: path = '/devices/virtual/net/hsr_slave_0' kobject: 'queues' (ffff88809a73a148): kobject_add_internal: parent: 'hsr_slave_0', set: '' kobject: 'queues' (ffff88809a73a148): kobject_uevent_env kobject: 'queues' (ffff88809a73a148): kobject_uevent_env: filter function caused the event to drop! kobject: 'rx-0' (ffff8880a1f766d0): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'rx-0' (ffff8880a1f766d0): kobject_uevent_env kobject: 'rx-0' (ffff8880a1f766d0): fill_kobj_path: path = '/devices/virtual/net/hsr_slave_0/queues/rx-0' kobject: 'loop3' (ffff8880a4a5d3a0): kobject_uevent_env kobject: 'tx-0' (ffff88809245ea98): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'loop3' (ffff8880a4a5d3a0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'tx-0' (ffff88809245ea98): kobject_uevent_env kobject: 'tx-0' (ffff88809245ea98): fill_kobj_path: path = '/devices/virtual/net/hsr_slave_0/queues/tx-0' kobject: 'batman_adv' (ffff8880a8558b00): kobject_add_internal: parent: 'hsr_slave_0', set: '' kobject: 'vxcan0' (ffff88809c6a67f0): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'vxcan0' (ffff88809c6a67f0): kobject_uevent_env kobject: 'vxcan0' (ffff88809c6a67f0): fill_kobj_path: path = '/devices/virtual/net/vxcan0' kobject: 'queues' (ffff8880a0ec2448): kobject_add_internal: parent: 'vxcan0', set: '' kobject: 'queues' (ffff8880a0ec2448): kobject_uevent_env kobject: 'queues' (ffff8880a0ec2448): kobject_uevent_env: filter function caused the event to drop! kobject: 'rx-0' (ffff8880a94cb790): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'rx-0' (ffff8880a94cb790): kobject_uevent_env kobject: 'rx-0' (ffff8880a94cb790): fill_kobj_path: path = '/devices/virtual/net/vxcan0/queues/rx-0' kobject: 'tx-0' (ffff88808af82818): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-0' (ffff88808af82818): kobject_uevent_env kobject: 'loop0' (ffff8880a4978120): kobject_uevent_env kobject: 'loop0' (ffff8880a4978120): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'tx-0' (ffff88808af82818): fill_kobj_path: path = '/devices/virtual/net/vxcan0/queues/tx-0' kobject: 'vxcan1' (ffff8880998aa7b0): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'vxcan1' (ffff8880998aa7b0): kobject_uevent_env kobject: 'vxcan1' (ffff8880998aa7b0): fill_kobj_path: path = '/devices/virtual/net/vxcan1' kobject: 'queues' (ffff8880a0ec2248): kobject_add_internal: parent: 'vxcan1', set: '' kobject: 'queues' (ffff8880a0ec2248): kobject_uevent_env kobject: 'queues' (ffff8880a0ec2248): kobject_uevent_env: filter function caused the event to drop! kobject: 'rx-0' (ffff8880a94cb850): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'rx-0' (ffff8880a94cb850): kobject_uevent_env kobject: 'rx-0' (ffff8880a94cb850): fill_kobj_path: path = '/devices/virtual/net/vxcan1/queues/rx-0' kobject: 'tx-0' (ffff8880a9658a58): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-0' (ffff8880a9658a58): kobject_uevent_env kobject: 'tx-0' (ffff8880a9658a58): fill_kobj_path: path = '/devices/virtual/net/vxcan1/queues/tx-0' kobject: 'loop3' (ffff8880a4a5d3a0): kobject_uevent_env IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready kobject: 'loop3' (ffff8880a4a5d3a0): fill_kobj_path: path = '/devices/virtual/block/loop3' IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready kobject: 'veth1_to_hsr' (ffff88807f097030): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'veth1_to_hsr' (ffff88807f097030): kobject_uevent_env kobject: 'veth1_to_hsr' (ffff88807f097030): fill_kobj_path: path = '/devices/virtual/net/veth1_to_hsr' kobject: 'queues' (ffff8880a0093c48): kobject_add_internal: parent: 'veth1_to_hsr', set: '' kobject: 'loop0' (ffff8880a4978120): kobject_uevent_env kobject: 'queues' (ffff8880a0093c48): kobject_uevent_env kobject: 'loop0' (ffff8880a4978120): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'queues' (ffff8880a0093c48): kobject_uevent_env: filter function caused the event to drop! kobject: 'rx-0' (ffff8880a9af2790): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'rx-0' (ffff8880a9af2790): kobject_uevent_env kobject: 'rx-0' (ffff8880a9af2790): fill_kobj_path: path = '/devices/virtual/net/veth1_to_hsr/queues/rx-0' kobject: 'tx-0' (ffff8880a5ed6798): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-0' (ffff8880a5ed6798): kobject_uevent_env kobject: 'loop3' (ffff8880a4a5d3a0): kobject_uevent_env kobject: 'tx-0' (ffff8880a5ed6798): fill_kobj_path: path = '/devices/virtual/net/veth1_to_hsr/queues/tx-0' kobject: 'loop3' (ffff8880a4a5d3a0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'batman_adv' (ffff888088831680): kobject_add_internal: parent: 'veth1_to_hsr', set: '' kobject: 'hsr_slave_1' (ffff8880994f0d70): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'hsr_slave_1' (ffff8880994f0d70): kobject_uevent_env kobject: 'hsr_slave_1' (ffff8880994f0d70): fill_kobj_path: path = '/devices/virtual/net/hsr_slave_1' kobject: 'queues' (ffff8880a0093848): kobject_add_internal: parent: 'hsr_slave_1', set: '' kobject: 'queues' (ffff8880a0093848): kobject_uevent_env kobject: 'loop0' (ffff8880a4978120): kobject_uevent_env kobject: 'queues' (ffff8880a0093848): kobject_uevent_env: filter function caused the event to drop! kobject: 'loop0' (ffff8880a4978120): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'rx-0' (ffff8880a9af2550): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'rx-0' (ffff8880a9af2550): kobject_uevent_env kobject: 'rx-0' (ffff8880a9af2550): fill_kobj_path: path = '/devices/virtual/net/hsr_slave_1/queues/rx-0' kobject: 'tx-0' (ffff8880a72d3d18): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'loop3' (ffff8880a4a5d3a0): kobject_uevent_env kobject: 'tx-0' (ffff8880a72d3d18): kobject_uevent_env kobject: 'tx-0' (ffff8880a72d3d18): fill_kobj_path: path = '/devices/virtual/net/hsr_slave_1/queues/tx-0' kobject: 'batman_adv' (ffff888088821e80): kobject_add_internal: parent: 'hsr_slave_1', set: '' kobject: 'loop3' (ffff8880a4a5d3a0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'hsr0' (ffff888099171370): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'hsr0' (ffff888099171370): kobject_uevent_env kobject: 'hsr0' (ffff888099171370): fill_kobj_path: path = '/devices/virtual/net/hsr0' kobject: 'queues' (ffff8880a0093448): kobject_add_internal: parent: 'hsr0', set: '' kobject: 'queues' (ffff8880a0093448): kobject_uevent_env kobject: 'queues' (ffff8880a0093448): kobject_uevent_env: filter function caused the event to drop! kobject: 'rx-0' (ffff8880a90b86d0): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'rx-0' (ffff8880a90b86d0): kobject_uevent_env kobject: 'rx-0' (ffff8880a90b86d0): fill_kobj_path: path = '/devices/virtual/net/hsr0/queues/rx-0' kobject: 'tx-0' (ffff8880994e1858): kobject_add_internal: parent: 'queues', set: 'queues' ------------[ cut here ]------------ WARNING: CPU: 0 PID: 6780 at kernel/events/core.c:1685 __list_add include/linux/list.h:66 [inline] WARNING: CPU: 0 PID: 6780 at kernel/events/core.c:1685 list_add_tail include/linux/list.h:93 [inline] WARNING: CPU: 0 PID: 6780 at kernel/events/core.c:1685 list_add_event kernel/events/core.c:1531 [inline] WARNING: CPU: 0 PID: 6780 at kernel/events/core.c:1685 add_event_to_ctx+0xb23/0x1460 kernel/events/core.c:2285