====================================================== WARNING: possible circular locking dependency detected 4.14.151 #0 Not tainted ------------------------------------------------------ syz-executor.0/15090 is trying to acquire lock: (event_mutex){+.+.}, at: [] perf_trace_init+0x58/0xaa0 kernel/trace/trace_event_perf.c:216 but task is already holding lock: (&cpuctx_mutex/1){+.+.}, at: [] perf_event_ctx_lock_nested+0x150/0x2c0 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+0x16f/0x430 kernel/locking/lockdep.c:3994 __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0xe8/0x1470 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+0x134c/0x2690 kernel/events/core.c:10225 SyS_perf_event_open+0x34/0x40 kernel/events/core.c:9983 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 -> #4 (&cpuctx_mutex){+.+.}: lock_acquire+0x16f/0x430 kernel/locking/lockdep.c:3994 __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0xe8/0x1470 kernel/locking/mutex.c:893 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:908 perf_event_init_cpu+0xc2/0x170 kernel/events/core.c:11223 perf_event_init+0x2d8/0x31a kernel/events/core.c:11270 start_kernel+0x3b6/0x6fd init/main.c:621 x86_64_start_reservations+0x29/0x2b arch/x86/kernel/head64.c:399 x86_64_start_kernel+0x77/0x7b arch/x86/kernel/head64.c:380 secondary_startup_64+0xa5/0xb0 arch/x86/kernel/head_64.S:240 -> #3 (pmus_lock){+.+.}: lock_acquire+0x16f/0x430 kernel/locking/lockdep.c:3994 __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0xe8/0x1470 kernel/locking/mutex.c:893 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:908 perf_event_init_cpu+0x2f/0x170 kernel/events/core.c:11217 cpuhp_invoke_callback+0x1ea/0x1ab0 kernel/cpu.c:184 cpuhp_up_callbacks kernel/cpu.c:572 [inline] _cpu_up+0x228/0x530 kernel/cpu.c:1134 do_cpu_up+0x121/0x150 kernel/cpu.c:1169 cpu_up+0x1b/0x20 kernel/cpu.c:1177 smp_init+0x157/0x170 kernel/smp.c:578 kernel_init_freeable+0x30b/0x532 init/main.c:1067 kernel_init+0x12/0x162 init/main.c:999 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404 -> #2 (cpu_hotplug_lock.rw_sem){++++}: lock_acquire+0x16f/0x430 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+0x3d/0xc0 kernel/cpu.c:295 static_key_slow_inc+0x13/0x30 kernel/jump_label.c:123 tracepoint_add_func kernel/tracepoint.c:223 [inline] tracepoint_probe_register_prio+0x4d6/0x6d0 kernel/tracepoint.c:283 tracepoint_probe_register+0x2b/0x40 kernel/tracepoint.c:304 trace_event_reg+0x277/0x330 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+0x449/0xaa0 kernel/trace/trace_event_perf.c:221 perf_tp_event_init+0x7d/0xf0 kernel/events/core.c:8106 perf_try_init_event+0x164/0x200 kernel/events/core.c:9342 perf_init_event kernel/events/core.c:9380 [inline] perf_event_alloc.part.0+0xd90/0x25b0 kernel/events/core.c:9640 perf_event_alloc kernel/events/core.c:9993 [inline] SYSC_perf_event_open+0xad1/0x2690 kernel/events/core.c:10097 SyS_perf_event_open+0x34/0x40 kernel/events/core.c:9983 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 -> #1 (tracepoints_mutex){+.+.}: lock_acquire+0x16f/0x430 kernel/locking/lockdep.c:3994 __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0xe8/0x1470 kernel/locking/mutex.c:893 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:908 tracepoint_probe_register_prio+0x36/0x6d0 kernel/tracepoint.c:279 tracepoint_probe_register+0x2b/0x40 kernel/tracepoint.c:304 trace_event_reg+0x277/0x330 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+0x449/0xaa0 kernel/trace/trace_event_perf.c:221 perf_tp_event_init+0x7d/0xf0 kernel/events/core.c:8106 perf_try_init_event+0x164/0x200 kernel/events/core.c:9342 perf_init_event kernel/events/core.c:9380 [inline] perf_event_alloc.part.0+0xd90/0x25b0 kernel/events/core.c:9640 perf_event_alloc kernel/events/core.c:9993 [inline] SYSC_perf_event_open+0xad1/0x2690 kernel/events/core.c:10097 SyS_perf_event_open+0x34/0x40 kernel/events/core.c:9983 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 -> #0 (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+0x2cb3/0x4620 kernel/locking/lockdep.c:3487 lock_acquire+0x16f/0x430 kernel/locking/lockdep.c:3994 __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0xe8/0x1470 kernel/locking/mutex.c:893 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:908 perf_trace_init+0x58/0xaa0 kernel/trace/trace_event_perf.c:216 perf_tp_event_init+0x7d/0xf0 kernel/events/core.c:8106 perf_try_init_event+0xe6/0x200 kernel/events/core.c:9342 perf_init_event kernel/events/core.c:9380 [inline] perf_event_alloc.part.0+0xd90/0x25b0 kernel/events/core.c:9640 perf_event_alloc kernel/events/core.c:9993 [inline] SYSC_perf_event_open+0xad1/0x2690 kernel/events/core.c:10097 SyS_perf_event_open+0x34/0x40 kernel/events/core.c:9983 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 other info that might help us debug this: 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.0/15090: #0: (&pmus_srcu){....}, at: [] perf_event_alloc.part.0+0xbaa/0x25b0 kernel/events/core.c:9636 #1: (&cpuctx_mutex/1){+.+.}, at: [] perf_event_ctx_lock_nested+0x150/0x2c0 kernel/events/core.c:1235 stack backtrace: CPU: 0 PID: 15090 Comm: syz-executor.0 Not tainted 4.14.151 #0 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+0x138/0x197 lib/dump_stack.c:53 print_circular_bug.isra.0.cold+0x1cc/0x28f 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+0x2cb3/0x4620 kernel/locking/lockdep.c:3487 lock_acquire+0x16f/0x430 kernel/locking/lockdep.c:3994 __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0xe8/0x1470 kernel/locking/mutex.c:893 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:908 perf_trace_init+0x58/0xaa0 kernel/trace/trace_event_perf.c:216 perf_tp_event_init+0x7d/0xf0 kernel/events/core.c:8106 perf_try_init_event+0xe6/0x200 kernel/events/core.c:9342 perf_init_event kernel/events/core.c:9380 [inline] perf_event_alloc.part.0+0xd90/0x25b0 kernel/events/core.c:9640 perf_event_alloc kernel/events/core.c:9993 [inline] SYSC_perf_event_open+0xad1/0x2690 kernel/events/core.c:10097 SyS_perf_event_open+0x34/0x40 kernel/events/core.c:9983 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x459f49 RSP: 002b:00007f8172a99c78 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000459f49 RDX: 0000000000000000 RSI: ffffffffffffffff RDI: 0000000020000000 RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000003 R11: 0000000000000246 R12: 00007f8172a9a6d4 R13: 00000000004c71e4 R14: 00000000004dcc58 R15: 00000000ffffffff kobject: 'integrity' (ffff8880549d5450): kobject_uevent_env kobject: 'integrity' (ffff8880549d5450): kobject_uevent_env: filter function caused the event to drop! kobject: 'integrity' (ffff8880549d5450): kobject_cleanup, parent (null) kobject: 'integrity' (ffff8880549d5450): does not have a release() function, it is broken and must be fixed. kobject: 'integrity': free name kobject: '7:0' (ffff888083594e10): kobject_uevent_env kobject: '7:0' (ffff888083594e10): fill_kobj_path: path = '/devices/virtual/bdi/7:0' kobject: '7:0' (ffff888083594e10): kobject_cleanup, parent (null) kobject: '7:0' (ffff888083594e10): calling ktype release kobject: '7:0': free name kobject: 'mq' (ffff88809dde1088): kobject_uevent_env kobject: 'mq' (ffff88809dde1088): kobject_uevent_env: filter function caused the event to drop! kobject: 'iosched' (ffff8880a9504dd0): kobject_uevent_env kobject: 'iosched' (ffff8880a9504dd0): kobject_uevent_env: filter function caused the event to drop! kobject: 'queue' (ffff88809dde1048): kobject_uevent_env kobject: 'queue' (ffff88809dde1048): kobject_uevent_env: filter function caused the event to drop! kobject: 'holders' (ffff888093ed5700): kobject_cleanup, parent ffff8880549d4f60 kobject: 'holders' (ffff888093ed5700): auto cleanup kobject_del kobject: 'holders' (ffff888093ed5700): calling ktype release kobject: (ffff888093ed5700): dynamic_kobj_release kobject: 'holders': free name kobject: 'slaves' (ffff888093ed5600): kobject_cleanup, parent ffff8880549d4f60 kobject: 'slaves' (ffff888093ed5600): auto cleanup kobject_del kobject: 'slaves' (ffff888093ed5600): calling ktype release kobject: (ffff888093ed5600): dynamic_kobj_release kobject: 'slaves': free name kobject: 'loop0' (ffff8880549d4f60): kobject_uevent_env kobject: 'loop0' (ffff8880549d4f60): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (ffff8880a4ae1220): kobject_uevent_env kobject: 'loop3' (ffff8880a4ae1220): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (ffff8880549d4f60): kobject_cleanup, parent (null) kobject: 'loop0' (ffff8880549d4f60): calling ktype release kobject: 'loop2' (ffff8880a4a791a0): kobject_uevent_env kobject: 'queue' (ffff88809dde1048): kobject_cleanup, parent (null) kobject: 'loop2' (ffff8880a4a791a0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'queue' (ffff88809dde1048): calling ktype release devpts: called with bogus options kobject: 'queue': free name kobject: 'iosched' (ffff8880a9504dd0): kobject_cleanup, parent (null) kobject: 'iosched' (ffff8880a9504dd0): calling ktype release kobject: 'loop0': free name kobject: 'loop5' (ffff8880a4b3ea60): kobject_uevent_env kobject: 'iosched': free name kobject: '0' (ffff8880828d4268): kobject_cleanup, parent (null) kobject: '0' (ffff8880828d4268): calling ktype release kobject: '0': free name kobject: 'cpu0' (ffffe8ffffc84d18): kobject_cleanup, parent (null) kobject: 'loop5' (ffff8880a4b3ea60): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'cpu0' (ffffe8ffffc84d18): calling ktype release kobject: 'cpu0': free name kobject: 'loop4' (ffff8880a4b02160): kobject_uevent_env kobject: 'cpu1' (ffffe8ffffd84d18): kobject_cleanup, parent (null) kobject: 'loop4' (ffff8880a4b02160): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'cpu1' (ffffe8ffffd84d18): calling ktype release kobject: 'loop1' (ffff8880a4a1f7a0): kobject_uevent_env kobject: 'loop1' (ffff8880a4a1f7a0): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (ffff8880a4b02160): kobject_uevent_env kobject: 'loop4' (ffff8880a4b02160): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: '7:0' (ffff88820cf9c390): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: 'loop5' (ffff8880a4b3ea60): kobject_uevent_env kobject: 'loop5' (ffff8880a4b3ea60): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'cpu1': free name kobject: 'loop2' (ffff8880a4a791a0): kobject_uevent_env kobject: 'loop2' (ffff8880a4a791a0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: '7:0' (ffff88820cf9c390): kobject_uevent_env kobject: 'mq' (ffff88809dde1088): kobject_cleanup, parent (null) kobject: 'mq' (ffff88809dde1088): calling ktype release kobject: '7:0' (ffff88820cf9c390): fill_kobj_path: path = '/devices/virtual/bdi/7:0' kobject: 'mq': free name kobject: 'loop0' (ffff88820bcecb20): kobject_add_internal: parent: 'block', set: 'devices' kobject: 'loop0' (ffff88820bcecb20): kobject_uevent_env kobject: 'loop0' (ffff88820bcecb20): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'holders' (ffff888090d02200): kobject_add_internal: parent: 'loop0', set: '' kobject: 'slaves' (ffff8880a997a180): kobject_add_internal: parent: 'loop0', set: '' kobject: 'loop0' (ffff88820bcecb20): kobject_uevent_env kobject: 'loop0' (ffff88820bcecb20): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'queue' (ffff8880a49a9148): kobject_add_internal: parent: 'loop0', set: '' kobject: 'mq' (ffff8880a49a9188): kobject_add_internal: parent: 'loop0', set: '' kobject: 'mq' (ffff8880a49a9188): kobject_uevent_env kobject: 'mq' (ffff8880a49a9188): kobject_uevent_env: filter function caused the event to drop! kobject: '0' (ffff8880995a2b68): kobject_add_internal: parent: 'mq', set: '' kobject: 'cpu0' (ffffe8ffffc78418): kobject_add_internal: parent: '0', set: '' kobject: 'cpu1' (ffffe8ffffd78418): kobject_add_internal: parent: '0', set: '' kobject: 'queue' (ffff8880a49a9148): kobject_uevent_env kobject: 'queue' (ffff8880a49a9148): kobject_uevent_env: filter function caused the event to drop! kobject: 'iosched' (ffff888086eecdd0): kobject_add_internal: parent: 'queue', set: '' kobject: 'iosched' (ffff888086eecdd0): kobject_uevent_env kobject: 'iosched' (ffff888086eecdd0): kobject_uevent_env: filter function caused the event to drop! kobject: 'integrity' (ffff88820bced010): kobject_add_internal: parent: 'loop0', set: '' kobject: 'integrity' (ffff88820bced010): kobject_uevent_env kobject: 'integrity' (ffff88820bced010): kobject_uevent_env: filter function caused the event to drop! kobject: 'loop3' (ffff8880a4ae1220): kobject_uevent_env kobject: 'loop3' (ffff8880a4ae1220): fill_kobj_path: path = '/devices/virtual/block/loop3' devpts: called with bogus options kobject: 'loop0' (ffff88820bcecb20): kobject_uevent_env kobject: 'loop0' (ffff88820bcecb20): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'integrity' (ffff88820bced010): kobject_uevent_env kobject: 'integrity' (ffff88820bced010): kobject_uevent_env: filter function caused the event to drop! kobject: 'integrity' (ffff88820bced010): kobject_cleanup, parent (null) kobject: 'integrity' (ffff88820bced010): does not have a release() function, it is broken and must be fixed. kobject: 'integrity': free name kobject: '7:0' (ffff88820cf9c390): kobject_uevent_env kobject: '7:0' (ffff88820cf9c390): fill_kobj_path: path = '/devices/virtual/bdi/7:0' kobject: '7:0' (ffff88820cf9c390): kobject_cleanup, parent (null) kobject: '7:0' (ffff88820cf9c390): calling ktype release kobject: '7:0': free name kobject: 'mq' (ffff8880a49a9188): kobject_uevent_env kobject: 'mq' (ffff8880a49a9188): kobject_uevent_env: filter function caused the event to drop! kobject: 'iosched' (ffff888086eecdd0): kobject_uevent_env kobject: 'iosched' (ffff888086eecdd0): kobject_uevent_env: filter function caused the event to drop! kobject: 'queue' (ffff8880a49a9148): kobject_uevent_env kobject: 'queue' (ffff8880a49a9148): kobject_uevent_env: filter function caused the event to drop! kobject: 'holders' (ffff888090d02200): kobject_cleanup, parent ffff88820bcecb20 kobject: 'holders' (ffff888090d02200): auto cleanup kobject_del kobject: 'holders' (ffff888090d02200): calling ktype release kobject: (ffff888090d02200): dynamic_kobj_release kobject: 'holders': free name kobject: 'slaves' (ffff8880a997a180): kobject_cleanup, parent ffff88820bcecb20 kobject: 'slaves' (ffff8880a997a180): auto cleanup kobject_del kobject: 'slaves' (ffff8880a997a180): calling ktype release kobject: (ffff8880a997a180): dynamic_kobj_release kobject: 'slaves': free name kobject: 'loop0' (ffff88820bcecb20): kobject_uevent_env kobject: 'loop0' (ffff88820bcecb20): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop0' (ffff88820bcecb20): kobject_cleanup, parent (null) kobject: 'loop0' (ffff88820bcecb20): calling ktype release kobject: 'queue' (ffff8880a49a9148): kobject_cleanup, parent (null) kobject: 'queue' (ffff8880a49a9148): calling ktype release kobject: 'queue': free name kobject: 'loop0': free name kobject: 'iosched' (ffff888086eecdd0): kobject_cleanup, parent (null) kobject: 'loop5' (ffff8880a4b3ea60): kobject_uevent_env kobject: 'iosched' (ffff888086eecdd0): calling ktype release kobject: 'iosched': free name kobject: '0' (ffff8880995a2b68): kobject_cleanup, parent (null) kobject: '0' (ffff8880995a2b68): calling ktype release kobject: 'loop5' (ffff8880a4b3ea60): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: '0': free name kobject: 'cpu0' (ffffe8ffffc78418): kobject_cleanup, parent (null) kobject: 'loop4' (ffff8880a4b02160): kobject_uevent_env kobject: 'cpu0' (ffffe8ffffc78418): calling ktype release kobject: 'cpu0': free name kobject: 'cpu1' (ffffe8ffffd78418): kobject_cleanup, parent (null) kobject: 'cpu1' (ffffe8ffffd78418): calling ktype release kobject: 'cpu1': free name kobject: 'mq' (ffff8880a49a9188): kobject_cleanup, parent (null) kobject: 'mq' (ffff8880a49a9188): calling ktype release kobject: 'mq': free name kobject: 'loop4' (ffff8880a4b02160): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (ffff8880a4ae1220): kobject_uevent_env kobject: 'loop3' (ffff8880a4ae1220): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (ffff8880a4a791a0): kobject_uevent_env kobject: 'loop2' (ffff8880a4a791a0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (ffff8880a4a1f7a0): kobject_uevent_env kobject: 'loop1' (ffff8880a4a1f7a0): fill_kobj_path: path = '/devices/virtual/block/loop1' devpts: called with bogus options kobject: 'loop3' (ffff8880a4ae1220): kobject_uevent_env kobject: 'loop3' (ffff8880a4ae1220): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (ffff8880a4b3ea60): kobject_uevent_env kobject: 'loop5' (ffff8880a4b3ea60): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (ffff8880a4a791a0): kobject_uevent_env kobject: 'loop2' (ffff8880a4a791a0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (ffff8880a4ae1220): kobject_uevent_env kobject: 'loop3' (ffff8880a4ae1220): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (ffff8880a4a791a0): kobject_uevent_env kobject: 'loop2' (ffff8880a4a791a0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (ffff8880a4b3ea60): kobject_uevent_env kobject: 'loop5' (ffff8880a4b3ea60): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (ffff8880a4b02160): kobject_uevent_env kobject: 'loop4' (ffff8880a4b02160): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (ffff8880a4ae1220): kobject_uevent_env kobject: 'loop3' (ffff8880a4ae1220): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (ffff8880a4a791a0): kobject_uevent_env kobject: 'loop2' (ffff8880a4a791a0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (ffff8880a4b02160): kobject_uevent_env kobject: 'loop4' (ffff8880a4b02160): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (ffff8880a4a1f7a0): kobject_uevent_env devpts: called with bogus options kobject: 'loop1' (ffff8880a4a1f7a0): fill_kobj_path: path = '/devices/virtual/block/loop1' devpts: called with bogus options kobject: 'loop2' (ffff8880a4a791a0): kobject_uevent_env kobject: 'loop2' (ffff8880a4a791a0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (ffff8880a4b3ea60): kobject_uevent_env kobject: 'loop5' (ffff8880a4b3ea60): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (ffff8880a4ae1220): kobject_uevent_env kobject: 'loop3' (ffff8880a4ae1220): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (ffff8880a4b02160): kobject_uevent_env kobject: 'loop4' (ffff8880a4b02160): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (ffff8880a4a791a0): kobject_uevent_env kobject: 'loop2' (ffff8880a4a791a0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop2' (ffff8880a4a791a0): kobject_uevent_env kobject: 'loop2' (ffff8880a4a791a0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (ffff8880a4b02160): kobject_uevent_env kobject: 'loop4' (ffff8880a4b02160): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (ffff8880a4b3ea60): kobject_uevent_env kobject: 'loop5' (ffff8880a4b3ea60): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (ffff8880a4a791a0): kobject_uevent_env kobject: 'loop2' (ffff8880a4a791a0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (ffff8880a4a1f7a0): kobject_uevent_env kobject: 'loop1' (ffff8880a4a1f7a0): fill_kobj_path: path = '/devices/virtual/block/loop1' devpts: called with bogus options team0: Invalid MTU 0 requested, hw min 68 kobject: 'loop3' (ffff8880a4ae1220): kobject_uevent_env kobject: 'loop3' (ffff8880a4ae1220): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (ffff8880a4a791a0): kobject_uevent_env kobject: 'loop2' (ffff8880a4a791a0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (ffff8880a4b3ea60): kobject_uevent_env kobject: 'loop5' (ffff8880a4b3ea60): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (ffff8880a4b02160): kobject_uevent_env kobject: 'loop4' (ffff8880a4b02160): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (ffff8880a4b3ea60): kobject_uevent_env kobject: 'loop5' (ffff8880a4b3ea60): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (ffff8880a4a791a0): kobject_uevent_env kobject: 'loop2' (ffff8880a4a791a0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (ffff8880a4a1f7a0): kobject_uevent_env kobject: 'loop1' (ffff8880a4a1f7a0): fill_kobj_path: path = '/devices/virtual/block/loop1' devpts: called with bogus options team0: Invalid MTU 0 requested, hw min 68 devpts: called with bogus options kobject: 'loop1' (ffff8880a4a1f7a0): kobject_uevent_env kobject: 'loop1' (ffff8880a4a1f7a0): fill_kobj_path: path = '/devices/virtual/block/loop1' devpts: called with bogus options kobject: 'loop3' (ffff8880a4ae1220): kobject_uevent_env kobject: 'loop3' (ffff8880a4ae1220): fill_kobj_path: path = '/devices/virtual/block/loop3' devpts: called with bogus options kobject: 'loop5' (ffff8880a4b3ea60): kobject_uevent_env kobject: 'loop5' (ffff8880a4b3ea60): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (ffff8880a4a791a0): kobject_uevent_env kobject: 'loop2' (ffff8880a4a791a0): fill_kobj_path: path = '/devices/virtual/block/loop2' devpts: called with bogus options kobject: 'loop1' (ffff8880a4a1f7a0): kobject_uevent_env kobject: 'loop1' (ffff8880a4a1f7a0): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (ffff8880a4b02160): kobject_uevent_env kobject: 'loop4' (ffff8880a4b02160): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (ffff8880a4ae1220): kobject_uevent_env kobject: 'loop3' (ffff8880a4ae1220): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (ffff8880a4b02160): kobject_uevent_env kobject: 'loop4' (ffff8880a4b02160): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (ffff8880a4b3ea60): kobject_uevent_env kobject: 'loop5' (ffff8880a4b3ea60): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (ffff8880a4ae1220): kobject_uevent_env kobject: 'loop3' (ffff8880a4ae1220): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (ffff8880a4a1f7a0): kobject_uevent_env kobject: 'loop1' (ffff8880a4a1f7a0): fill_kobj_path: path = '/devices/virtual/block/loop1' devpts: called with bogus options team0: Invalid MTU 0 requested, hw min 68 kobject: 'loop5' (ffff8880a4b3ea60): kobject_uevent_env kobject: 'loop5' (ffff8880a4b3ea60): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (ffff8880a4a791a0): kobject_uevent_env team0: Invalid MTU 0 requested, hw min 68 kobject: 'loop2' (ffff8880a4a791a0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (ffff8880a4ae1220): kobject_uevent_env kobject: 'loop3' (ffff8880a4ae1220): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (ffff8880a4b02160): kobject_uevent_env kobject: 'loop4' (ffff8880a4b02160): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (ffff8880a4b3ea60): kobject_uevent_env kobject: 'loop5' (ffff8880a4b3ea60): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop1' (ffff8880a4a1f7a0): kobject_uevent_env devpts: called with bogus options kobject: 'loop1' (ffff8880a4a1f7a0): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop3' (ffff8880a4ae1220): kobject_uevent_env kobject: 'loop3' (ffff8880a4ae1220): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (ffff8880a4a791a0): kobject_uevent_env kobject: 'loop2' (ffff8880a4a791a0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (ffff8880a4b3ea60): kobject_uevent_env kobject: 'loop5' (ffff8880a4b3ea60): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (ffff8880a4b02160): kobject_uevent_env kobject: 'loop4' (ffff8880a4b02160): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (ffff8880a4a791a0): kobject_uevent_env kobject: 'loop2' (ffff8880a4a791a0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (ffff8880a4b3ea60): kobject_uevent_env kobject: 'loop5' (ffff8880a4b3ea60): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (ffff8880a4ae1220): kobject_uevent_env kobject: 'loop3' (ffff8880a4ae1220): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (ffff8880a4b02160): kobject_uevent_env devpts: called with bogus options kobject: 'loop4' (ffff8880a4b02160): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (ffff8880a4a1f7a0): kobject_uevent_env kobject: 'loop1' (ffff8880a4a1f7a0): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop1' (ffff8880a4a1f7a0): kobject_uevent_env kobject: 'loop1' (ffff8880a4a1f7a0): fill_kobj_path: path = '/devices/virtual/block/loop1' devpts: called with bogus options kobject: 'loop2' (ffff8880a4a791a0): kobject_uevent_env kobject: 'loop2' (ffff8880a4a791a0): fill_kobj_path: path = '/devices/virtual/block/loop2' devpts: called with bogus options kobject: 'loop1' (ffff8880a4a1f7a0): kobject_uevent_env kobject: 'loop1' (ffff8880a4a1f7a0): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop5' (ffff8880a4b3ea60): kobject_uevent_env kobject: 'loop5' (ffff8880a4b3ea60): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (ffff8880a4ae1220): kobject_uevent_env kobject: 'loop3' (ffff8880a4ae1220): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (ffff8880a4b02160): kobject_uevent_env kobject: 'loop4' (ffff8880a4b02160): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (ffff8880a4ae1220): kobject_uevent_env kobject: 'loop3' (ffff8880a4ae1220): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (ffff8880a4a791a0): kobject_uevent_env kobject: 'loop2' (ffff8880a4a791a0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (ffff8880a4b02160): kobject_uevent_env kobject: 'loop4' (ffff8880a4b02160): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (ffff8880a4b3ea60): kobject_uevent_env kobject: 'loop5' (ffff8880a4b3ea60): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (ffff8880a4ae1220): kobject_uevent_env kobject: 'loop3' (ffff8880a4ae1220): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (ffff8880a4a1f7a0): kobject_uevent_env kobject: 'loop1' (ffff8880a4a1f7a0): fill_kobj_path: path = '/devices/virtual/block/loop1' TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. kobject: 'loop2' (ffff8880a4a791a0): kobject_uevent_env devpts: called with bogus options kobject: 'loop2' (ffff8880a4a791a0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (ffff8880a4a1f7a0): kobject_uevent_env kobject: 'loop1' (ffff8880a4a1f7a0): fill_kobj_path: path = '/devices/virtual/block/loop1' devpts: called with bogus options kobject: 'loop5' (ffff8880a4b3ea60): kobject_uevent_env kobject: 'loop5' (ffff8880a4b3ea60): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (ffff8880a4ae1220): kobject_uevent_env kobject: 'loop3' (ffff8880a4ae1220): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (ffff8880a4a791a0): kobject_uevent_env kobject: 'loop2' (ffff8880a4a791a0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (ffff8880a4b02160): kobject_uevent_env kobject: 'loop4' (ffff8880a4b02160): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (ffff8880a4a791a0): kobject_uevent_env kobject: 'loop2' (ffff8880a4a791a0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (ffff8880a4b02160): kobject_uevent_env kobject: 'loop4' (ffff8880a4b02160): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (ffff8880a4a791a0): kobject_uevent_env kobject: 'loop2' (ffff8880a4a791a0): fill_kobj_path: path = '/devices/virtual/block/loop2'