[[36minfo[39;49m] Using makefile-style concurrent boot in runlevel 2.
[ 24.140086] audit: type=1800 audit(1544985274.708:21): pid=5777 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0
[ 24.159569] audit: type=1800 audit(1544985274.708:22): pid=5777 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="motd" dev="sda1" ino=2447 res=0
[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c.
[....] Starting periodic command scheduler: cron[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c.
[....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c.
Debian GNU/Linux 7 syzkaller ttyS0
syzkaller login: [ 36.137354] sshd (5919) used greatest stack depth: 15744 bytes left
Warning: Permanently added '10.128.0.190' (ECDSA) to the list of known hosts.
net.ipv6.conf.syz_tun.accept_dad = 0
[ 52.042277] IPVS: ftp: loaded support on port[0] = 21
net.ipv6.conf.syz_tun.router_solicitations = 0
[ 52.267908] bridge0: port 1(bridge_slave_0) entered blocking state
[ 52.276203] bridge0: port 1(bridge_slave_0) entered disabled state
[ 52.283529] device bridge_slave_0 entered promiscuous mode
[ 52.302106] bridge0: port 2(bridge_slave_1) entered blocking state
[ 52.309389] bridge0: port 2(bridge_slave_1) entered disabled state
[ 52.316245] device bridge_slave_1 entered promiscuous mode
[ 52.333955] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready
[ 52.351346] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready
[ 52.399355] bond0: Enslaving bond_slave_0 as an active interface with an up link
[ 52.419491] bond0: Enslaving bond_slave_1 as an active interface with an up link
[ 52.490447] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready
[ 52.497870] team0: Port device team_slave_0 added
[ 52.513918] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready
[ 52.521130] team0: Port device team_slave_1 added
[ 52.537800] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready
[ 52.556859] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready
[ 52.574523] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready
[ 52.592496] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready
RTNETLINK answers: Operation not supported
RTNETLINK answers: No buffer space available
RTNETLINK answers: Operation not supported
[ 52.738420] bridge0: port 2(bridge_slave_1) entered blocking state
[ 52.744838] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 52.751760] bridge0: port 1(bridge_slave_0) entered blocking state
[ 52.758092] bridge0: port 1(bridge_slave_0) entered forwarding state
RTNETLINK answers: Operation not supported
RTNETLINK answers: Operation not supported
RTNETLINK answers: Operation not supported
RTNETLINK answers: Invalid argument
RTNETLINK answers: Invalid argument
RTNETLINK answers: Invalid argument
[ 53.270586] 8021q: adding VLAN 0 to HW filter on device bond0
[ 53.320767] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready
[ 53.374267] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready
[ 53.380591] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready
[ 53.387788] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
[ 53.442322] 8021q: adding VLAN 0 to HW filter on device team0
executing program
[ 53.739003] kasan: CONFIG_KASAN_INLINE enabled
[ 53.739016] ==================================================================
[ 53.743676] BUG: KASAN: slab-out-of-bounds in tick_sched_handle+0x16c/0x180
[ 53.751043] kasan: GPF could be caused by NULL-ptr deref or user memory access
[ 53.758121] Read of size 8 at addr ffff8881d8b67b70 by task syz-executor132/5936
[ 53.765465] general protection fault: 0000 [#1] PREEMPT SMP KASAN
[ 53.772961]
[ 53.772972] CPU: 0 PID: 5936 Comm: syz-executor132 Not tainted 4.20.0-rc6+ #347
[ 53.779183] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.20.0-rc6+ #347
[ 53.780795] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 53.788217] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 53.794857] Call Trace:
[ 53.804202] RIP: 0010:debug_object_deactivate+0x191/0x450
[ 53.813525]
[ 53.816093] Code: 02 00 00 48 8b 1b 41 bf 01 00 00 00 48 85 db 74 46 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 18 41 83 c7 01 48 89 fe 48 c1 ee 03 <80> 3c 06 00 0f 85 04 02 00 00 48 3b 53 18 0f 84 53 01 00 00 48 89
[ 53.821645] dump_stack+0x244/0x39d
[ 53.823755] RSP: 0018:ffff8881daf078b0 EFLAGS: 00010807
[ 53.842656] ? dump_stack_print_info.cold.1+0x20/0x20
[ 53.846258] RAX: dffffc0000000000 RBX: da3ef506c4b2a03d RCX: ffffffff83939c1a
[ 53.851592] ? printk+0xa7/0xcf
[ 53.851603] ? kmsg_dump_rewind_nolock+0xe4/0xe4
[ 53.856852] RDX: ffff8881bb4ed108 RSI: 1b47dea0d896540a RDI: da3ef506c4b2a055
[ 53.864114] ? __sanitizer_cov_trace_cmp4+0x16/0x20
[ 53.867370] RBP: ffff8881daf07968 R08: ffffed103b5e0f03 R09: ffffed103b5e0f02
[ 53.872112] print_address_description.cold.7+0x9/0x1ff
[ 53.879522] R10: ffffed103b5e0f02 R11: 0000000000000003 R12: 1ffff1103b5e0f18
[ 53.884523] kasan_report.cold.8+0x242/0x309
[ 53.891907] R13: ffffffff8b23e7a8 R14: ffffffff895a5980 R15: 0000000000000003
[ 53.897254] ? tick_sched_handle+0x16c/0x180
[ 53.904508] FS: 0000000000000000(0000) GS:ffff8881daf00000(0000) knlGS:0000000000000000
[ 53.908894] __asan_report_load8_noabort+0x14/0x20
[ 53.916150] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 53.920698] tick_sched_handle+0x16c/0x180
[ 53.928901] CR2: 0000000000619570 CR3: 00000001c3506000 CR4: 00000000001406e0
[ 53.928914] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 53.933846] tick_sched_timer+0x45/0x130
[ 53.939718] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 53.943937] __hrtimer_run_queues+0x41c/0x10d0
[ 53.951344] Call Trace:
[ 53.958599] ? tick_sched_do_timer+0x1a0/0x1a0
[ 53.962635]
[ 53.969901] ? hrtimer_start_range_ns+0xe00/0xe00
[ 53.974478] ? debug_stats_show+0x100/0x100
[ 53.977043] ? pvclock_read_flags+0x160/0x160
[ 53.981601] ? do_raw_spin_trylock+0x270/0x270
[ 53.983726] ? trace_hardirqs_on+0x310/0x310
[ 53.988759] ? __queue_work+0x1440/0x1440
[ 53.993180] ? kvm_clock_read+0x18/0x30
[ 53.997672] __run_timers+0x56f/0xc70
[ 54.002238] ? __sanitizer_cov_trace_cmp4+0x16/0x20
[ 54.002254] ? ktime_get_update_offsets_now+0x3b3/0x540
[ 54.006663] ? timer_fixup_init+0x70/0x70
[ 54.010810] ? do_timer+0x50/0x50
[ 54.014786] ? __sanitizer_cov_trace_cmp8+0x18/0x20
[ 54.018569] ? rwlock_bug.part.2+0x90/0x90
[ 54.023585] ? zap_class+0x640/0x640
[ 54.028936] ? trace_hardirqs_on+0x310/0x310
[ 54.033072] ? enqueue_hrtimer+0x1a5/0x560
[ 54.036505] ? rcu_softirq_qs+0x20/0x20
[ 54.041511] ? hrtimer_update_softirq_timer+0xa0/0xa0
[ 54.045856] hrtimer_interrupt+0x313/0x780
[ 54.049554] ? find_held_lock+0x36/0x1c0
[ 54.054223] smp_apic_timer_interrupt+0x1a1/0x760
[ 54.058443] ? pvclock_read_flags+0x160/0x160
[ 54.062391] ? smp_reschedule_interrupt+0x109/0x650
[ 54.067556] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[ 54.071775] ? smp_call_function_single_interrupt+0x650/0x650
[ 54.075899] ? check_preemption_disabled+0x48/0x280
[ 54.080715] ? interrupt_entry+0xb5/0xc0
[ 54.085191] ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[ 54.090179] ? trace_hardirqs_off_caller+0xbb/0x310
[ 54.095692] ? rcu_pm_notify+0xc0/0xc0
[ 54.101553] ? trace_hardirqs_off_caller+0xbb/0x310
[ 54.106548] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[ 54.110587] ? trace_hardirqs_off_thunk+0x1a/0x1c
[ 54.116096] ? check_preemption_disabled+0x48/0x280
[ 54.121088] ? trace_hardirqs_on_caller+0x310/0x310
[ 54.124949] run_timer_softirq+0x52/0xb0
[ 54.129940] ? trace_hardirqs_on_caller+0x310/0x310
[ 54.135451] ? rcu_read_lock_sched_held+0x14f/0x180
[ 54.140265] ? task_prio+0x50/0x50
[ 54.145257] __do_softirq+0x308/0xb7e
[ 54.150247] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[ 54.154284] ? ktime_get_raw_ts64+0x4d0/0x4d0
[ 54.159276] ? check_preemption_disabled+0x48/0x280
[ 54.164266] ? lock_downgrade+0x900/0x900
[ 54.167790] ? trace_hardirqs_off_thunk+0x1a/0x1c
[ 54.171567] ? __irqentry_text_end+0x1f9658/0x1f9658
[ 54.177078] apic_timer_interrupt+0xf/0x20
[ 54.181555] ? pvclock_read_flags+0x160/0x160
[ 54.186538]
[ 54.190668] ? lapic_next_event+0x5a/0x90
[ 54.195475]
[ 54.200560] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[ 54.204771] Allocated by task 5092:
[ 54.209243] ? kvm_clock_read+0x18/0x30
[ 54.211457] save_stack+0x43/0xd0
[ 54.215590] ? kvm_sched_clock_read+0x9/0x20
[ 54.217194] kasan_kmalloc+0xc7/0xe0
[ 54.222704] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[ 54.226307] kasan_slab_alloc+0x12/0x20
[ 54.230261] ? check_preemption_disabled+0x48/0x280
[ 54.233689] kmem_cache_alloc+0x12e/0x730
[ 54.238092] irq_exit+0x17f/0x1c0
[ 54.241782] getname_flags+0xd0/0x590
[ 54.247298] smp_apic_timer_interrupt+0x1cb/0x760
[ 54.251239] user_path_at_empty+0x2d/0x50
[ 54.256232] ? smp_reschedule_interrupt+0x109/0x650
[ 54.260359] do_faccessat+0x254/0x800
[ 54.263789] ? smp_call_function_single_interrupt+0x650/0x650
[ 54.267575] __x64_sys_access+0x59/0x80
[ 54.272389] ? interrupt_entry+0xb5/0xc0
[ 54.272405] ? trace_hardirqs_off_caller+0xbb/0x310
[ 54.276562] do_syscall_64+0x1b9/0x820
[ 54.281553] ? trace_hardirqs_off_caller+0xbb/0x310
[ 54.285326] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 54.291185] ? trace_hardirqs_off_thunk+0x1a/0x1c
[ 54.295125]
[ 54.299170] ? trace_hardirqs_on_caller+0x310/0x310
[ 54.304153] Freed by task 5092:
[ 54.308020] ? trace_hardirqs_on_caller+0x310/0x310
[ 54.313008] save_stack+0x43/0xd0
[ 54.318171] ? check_preemption_disabled+0x48/0x280
[ 54.322991] __kasan_slab_free+0x102/0x150
[ 54.324614] ? task_prio+0x50/0x50
[ 54.329601] kasan_slab_free+0xe/0x10
[ 54.332856] ? trace_hardirqs_off_thunk+0x1a/0x1c
[ 54.337951] kmem_cache_free+0x83/0x290
[ 54.341392] apic_timer_interrupt+0xf/0x20
[ 54.346397] putname+0xf2/0x130
[ 54.350592]
[ 54.354114] filename_lookup+0x39a/0x520
[ 54.357890] RIP: 0010:native_safe_halt+0x6/0x10
[ 54.362702] user_path_at_empty+0x40/0x50
[ 54.366652] Code: e9 2c ff ff ff 48 89 c7 48 89 45 d8 e8 d3 ac e5 f9 48 8b 45 d8 e9 ca fe ff ff 48 89 df e8 c2 ac e5 f9 eb 82 55 48 89 e5 fb f4 <5d> c3 0f 1f 84 00 00 00 00 00 55 48 89 e5 f4 5d c3 90 90 90 90 90
[ 54.370868] do_faccessat+0x254/0x800
[ 54.374128] RSP: 0018:ffff8881d9b27cb8 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
[ 54.376342] __x64_sys_access+0x59/0x80
[ 54.380374] RAX: dffffc0000000000 RBX: 1ffff1103b364f9b RCX: 0000000000000000
[ 54.385016] do_syscall_64+0x1b9/0x820
[ 54.389133] RDX: 1ffffffff12a4021 RSI: 0000000000000001 RDI: ffffffff89520108
[ 54.408015] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 54.411791] RBP: ffff8881d9b27cb8 R08: ffff8881d9b14340 R09: 0000000000000000
[ 54.411800] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8881d9b27d78
[ 54.419480]
[ 54.423428] R13: ffffffff8a166760 R14: 0000000000000000 R15: 0000000000000001
[ 54.430767] The buggy address belongs to the object at ffff8881d8b66100
[ 54.430767] which belongs to the cache names_cache of size 4096
[ 54.434631] default_idle+0xbf/0x490
[ 54.441876] The buggy address is located 2672 bytes to the right of
[ 54.441876] 4096-byte region [ffff8881d8b66100, ffff8881d8b67100)
[ 54.447044] ? rcu_dynticks_eqs_enter+0x4f/0x80
[ 54.454275] The buggy address belongs to the page:
[ 54.454288] page:ffffea000762d980 count:1 mapcount:0 mapping:ffff8881da980e00 index:0x0 compound_mapcount: 0
[ 54.461533] ? __sched_text_end+0x1/0x1
[ 54.463136] flags: 0x2fffc0000010200(slab|head)
[ 54.470388] ? rcu_idle_enter+0x39a/0x530
[ 54.483133] raw: 02fffc0000010200 ffffea0007628f08 ffffea000762dc88 ffff8881da980e00
[ 54.486825] ? rcu_eqs_special_set+0x1c0/0x1c0
[ 54.499369] raw: 0000000000000000 ffff8881d8b66100 0000000100000001 0000000000000000
[ 54.504014] ? tsc_verify_tsc_adjust+0x137/0x450
[ 54.508907] page dumped because: kasan: bad access detected
[ 54.518850] ? trace_hardirqs_off_caller+0x310/0x310
[ 54.522790]
[ 54.527462] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[ 54.531573] Memory state around the buggy address:
[ 54.539432] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[ 54.543983] ffff8881d8b67a00: 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc fc
[ 54.551843] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[ 54.556569] ffff8881d8b67a80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 54.562262] arch_cpu_idle+0x10/0x20
[ 54.567336] >ffff8881d8b67b00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 54.568967] default_idle_call+0x6d/0x90
[ 54.574471] ^
[ 54.579383] do_idle+0x49b/0x5c0
[ 54.585361] ffff8881d8b67b80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 54.592726] ? arch_cpu_idle_exit+0x70/0x70
[ 54.598234] ffff8881d8b67c00: fc fc fc fc fc 00 00 00 00 00 00 00 00 00 00 00
[ 54.605573] ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[ 54.609257] ==================================================================
[ 54.616605] ? complete+0x62/0x80
[ 54.620635] Kernel panic - not syncing: panic_on_warn set ...
[ 54.627632] cpu_startup_entry+0x18/0x20
[ 54.675883] start_secondary+0x487/0x5f0
[ 54.679932] ? set_cpu_sibling_map+0x1890/0x1890
[ 54.684682] secondary_startup_64+0xa4/0xb0
[ 54.688995] Modules linked in:
[ 54.692180] ---[ end trace ba8f776256a4710e ]---
[ 54.696949] RIP: 0010:debug_object_deactivate+0x191/0x450
[ 54.702472] Code: 02 00 00 48 8b 1b 41 bf 01 00 00 00 48 85 db 74 46 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 18 41 83 c7 01 48 89 fe 48 c1 ee 03 <80> 3c 06 00 0f 85 04 02 00 00 48 3b 53 18 0f 84 53 01 00 00 48 89
[ 54.722313] RSP: 0018:ffff8881daf078b0 EFLAGS: 00010807
[ 54.727671] RAX: dffffc0000000000 RBX: da3ef506c4b2a03d RCX: ffffffff83939c1a
[ 54.734927] RDX: ffff8881bb4ed108 RSI: 1b47dea0d896540a RDI: da3ef506c4b2a055
[ 54.742183] RBP: ffff8881daf07968 R08: ffffed103b5e0f03 R09: ffffed103b5e0f02
[ 54.750034] R10: ffffed103b5e0f02 R11: 0000000000000003 R12: 1ffff1103b5e0f18
[ 54.757292] R13: ffffffff8b23e7a8 R14: ffffffff895a5980 R15: 0000000000000003
[ 54.764548] FS: 0000000000000000(0000) GS:ffff8881daf00000(0000) knlGS:0000000000000000
[ 54.772760] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 54.778624] CR2: 0000000000619570 CR3: 00000001c3506000 CR4: 00000000001406e0
[ 54.785882] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 54.793134] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 55.796895] Shutting down cpus with NMI
[ 55.802086] Kernel Offset: disabled
[ 55.805703]
[ 55.805706] ======================================================
[ 55.805710] WARNING: possible circular locking dependency detected
[ 55.805712] 4.20.0-rc6+ #347 Not tainted
[ 55.805716] ------------------------------------------------------
[ 55.805718] swapper/1/0 is trying to acquire lock:
[ 55.805720] 0000000029869c46 ((console_sem).lock){-.-.}, at: down_trylock+0x13/0x70
[ 55.805729]
[ 55.805731] but task is already holding lock:
[ 55.805733] 00000000db2e2b23 (&obj_hash[i].lock){-.-.}, at: debug_object_deactivate+0xf7/0x450
[ 55.805742]
[ 55.805744] which lock already depends on the new lock.
[ 55.805746]
[ 55.805747]
[ 55.805750] the existing dependency chain (in reverse order) is:
[ 55.805752]
[ 55.805753] -> #3 (&obj_hash[i].lock){-.-.}:
[ 55.805761] _raw_spin_lock_irqsave+0x99/0xd0
[ 55.805764] __debug_object_init+0x127/0x1290
[ 55.805767] debug_object_init+0x16/0x20
[ 55.805769] hrtimer_init+0x97/0x490
[ 55.805771] init_dl_task_timer+0x1b/0x50
[ 55.805774] __sched_fork+0x2ae/0x590
[ 55.805776] init_idle+0x75/0x740
[ 55.805778] sched_init+0xb33/0xc07
[ 55.805781] start_kernel+0x4c1/0xa30
[ 55.805784] x86_64_start_reservations+0x29/0x2b
[ 55.805786] x86_64_start_kernel+0x76/0x79
[ 55.805789] secondary_startup_64+0xa4/0xb0
[ 55.805790]
[ 55.805791] -> #2 (&rq->lock){-.-.}:
[ 55.805799] _raw_spin_lock+0x2d/0x40
[ 55.805802] task_fork_fair+0xb0/0x6d0
[ 55.805804] sched_fork+0x443/0xba0
[ 55.805806] copy_process+0x25b8/0x87a0
[ 55.805809] _do_fork+0x1cb/0x11d0
[ 55.805811] kernel_thread+0x34/0x40
[ 55.805813] rest_init+0x28/0x372
[ 55.805816] arch_call_rest_init+0xe/0x1b
[ 55.805818] start_kernel+0x9f5/0xa30
[ 55.805821] x86_64_start_reservations+0x29/0x2b
[ 55.805824] x86_64_start_kernel+0x76/0x79
[ 55.805826] secondary_startup_64+0xa4/0xb0
[ 55.805827]
[ 55.805829] -> #1 (&p->pi_lock){-.-.}:
[ 55.805837] _raw_spin_lock_irqsave+0x99/0xd0
[ 55.805839] try_to_wake_up+0xdc/0x1440
[ 55.805842] wake_up_process+0x10/0x20
[ 55.805844] __up.isra.1+0x1c0/0x2a0
[ 55.805846] up+0x13c/0x1c0
[ 55.805849] __up_console_sem+0xbe/0x1b0
[ 55.805851] console_unlock+0x811/0x1190
[ 55.805853] vprintk_emit+0x391/0x990
[ 55.805856] vprintk_default+0x28/0x30
[ 55.805858] vprintk_func+0x7e/0x181
[ 55.805860] printk+0xa7/0xcf
[ 55.805863] kobject_uevent_env+0x96/0x101e
[ 55.805865] reg_query_database+0x283/0x400
[ 55.805868] reg_process_hint+0x189/0xec0
[ 55.805870] reg_todo+0x49a/0xc20
[ 55.805873] process_one_work+0xc90/0x1c40
[ 55.805875] worker_thread+0x17f/0x1390
[ 55.805877] kthread+0x35a/0x440
[ 55.805880] ret_from_fork+0x3a/0x50
[ 55.805881]
[ 55.805882] -> #0 ((console_sem).lock){-.-.}:
[ 55.805890] lock_acquire+0x1ed/0x520
[ 55.805893] _raw_spin_lock_irqsave+0x99/0xd0
[ 55.805895] down_trylock+0x13/0x70
[ 55.805898] __down_trylock_console_sem+0xae/0x1f0
[ 55.805901] console_trylock+0x15/0xa0
[ 55.805903] vprintk_emit+0x372/0x990
[ 55.805905] vprintk_default+0x28/0x30
[ 55.805908] vprintk_func+0x7e/0x181
[ 55.805910] printk+0xa7/0xcf
[ 55.805913] kasan_die_handler.cold.20+0x11/0x30
[ 55.805915] notifier_call_chain+0x17e/0x380
[ 55.805918] atomic_notifier_call_chain+0x96/0x190
[ 55.805921] notify_die+0x1bd/0x2d0
[ 55.805923] do_general_protection+0x16d/0x2f0
[ 55.805926] general_protection+0x1e/0x30
[ 55.805929] debug_object_deactivate+0x191/0x450
[ 55.805931] __run_timers+0x56f/0xc70
[ 55.805933] run_timer_softirq+0x52/0xb0
[ 55.805936] __do_softirq+0x308/0xb7e
[ 55.805938] irq_exit+0x17f/0x1c0
[ 55.805941] smp_apic_timer_interrupt+0x1cb/0x760
[ 55.805943] apic_timer_interrupt+0xf/0x20
[ 55.805946] native_safe_halt+0x6/0x10
[ 55.805948] default_idle+0xbf/0x490
[ 55.805951] arch_cpu_idle+0x10/0x20
[ 55.805953] default_idle_call+0x6d/0x90
[ 55.805955] do_idle+0x49b/0x5c0
[ 55.805958] cpu_startup_entry+0x18/0x20
[ 55.805960] start_secondary+0x487/0x5f0
[ 55.805963] secondary_startup_64+0xa4/0xb0
[ 55.805964]
[ 55.805967] other info that might help us debug this:
[ 55.805968]
[ 55.805970] Chain exists of:
[ 55.805971] (console_sem).lock --> &rq->lock --> &obj_hash[i].lock
[ 55.805981]
[ 55.805984] Possible unsafe locking scenario:
[ 55.805985]
[ 55.805988] CPU0 CPU1
[ 55.805990] ---- ----
[ 55.805992] lock(&obj_hash[i].lock);
[ 55.805997] lock(&rq->lock);
[ 55.806002] lock(&obj_hash[i].lock);
[ 55.806007] lock((console_sem).lock);
[ 55.806011]
[ 55.806013] *** DEADLOCK ***
[ 55.806015]
[ 55.806017] 3 locks held by swapper/1/0:
[ 55.806018] #0: 000000003bb0df09 (&base->lock){..-.}, at: __run_timers+0x72b/0xc70
[ 55.806028] #1: 00000000db2e2b23 (&obj_hash[i].lock){-.-.}, at: debug_object_deactivate+0xf7/0x450
[ 55.806038] #2: 00000000fdf909a0 (rcu_read_lock){....}, at: atomic_notifier_call_chain+0x0/0x190
[ 55.806048]
[ 55.806049] stack backtrace:
[ 55.806053] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.20.0-rc6+ #347
[ 55.806057] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 55.806059] Call Trace:
[ 55.806061]
[ 55.806063] dump_stack+0x244/0x39d
[ 55.806066] ? dump_stack_print_info.cold.1+0x20/0x20
[ 55.806068] ? vprintk_func+0x85/0x181
[ 55.806071] print_circular_bug.isra.35.cold.54+0x1bd/0x27d
[ 55.806073] ? save_trace+0xe0/0x290
[ 55.806076] __lock_acquire+0x3399/0x4c20
[ 55.806078] ? mark_held_locks+0x130/0x130
[ 55.806081] ? mark_held_locks+0x130/0x130
[ 55.806084] ? check_preemption_disabled+0x48/0x280
[ 55.806086] ? find_held_lock+0x36/0x1c0
[ 55.806088] ? lock_downgrade+0x900/0x900
[ 55.806091] ? lock_downgrade+0x900/0x900
[ 55.806094] ? trace_hardirqs_off+0xb8/0x310
[ 55.806096] ? kasan_check_read+0x11/0x20
[ 55.806098] ? do_raw_spin_unlock+0xa7/0x330
[ 55.806101] ? trace_hardirqs_on+0x310/0x310
[ 55.806104] ? do_raw_spin_trylock+0x270/0x270
[ 55.806106] ? zap_class+0x640/0x640
[ 55.806109] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[ 55.806111] lock_acquire+0x1ed/0x520
[ 55.806114] ? down_trylock+0x13/0x70
[ 55.806116] ? lock_release+0xa00/0xa00
[ 55.806118] ? trace_hardirqs_off+0xb8/0x310
[ 55.806121] ? vprintk_emit+0x1de/0x990
[ 55.806123] ? trace_hardirqs_on+0x310/0x310
[ 55.806126] ? trace_hardirqs_off+0xb8/0x310
[ 55.806128] ? log_store+0x344/0x4c0
[ 55.806130] ? vprintk_emit+0x372/0x990
[ 55.806133] _raw_spin_lock_irqsave+0x99/0xd0
[ 55.806135] ? down_trylock+0x13/0x70
[ 55.806138] down_trylock+0x13/0x70
[ 55.806140] __down_trylock_console_sem+0xae/0x1f0
[ 55.806143] console_trylock+0x15/0xa0
[ 55.806145] vprintk_emit+0x372/0x990
[ 55.806147] ? wake_up_klogd+0x180/0x180
[ 55.806150] ? __lock_acquire+0x62f/0x4c20
[ 55.806152] ? __queue_work+0x671/0x1440
[ 55.806154] vprintk_default+0x28/0x30
[ 55.806157] vprintk_func+0x7e/0x181
[ 55.806160] printk+0xa7/0xcf
[ 55.806163] ? kmsg_dump_rewind_nolock+0xe4/0xe4
[ 55.806165] ? mark_held_locks+0x130/0x130
[ 55.806168] ? mark_held_locks+0x130/0x130
[ 55.806170] ? kasan_die_handler.cold.20+0x5/0x30
[ 55.806173] ? kasan_die_handler+0x1a/0x31
[ 55.806175] kasan_die_handler.cold.20+0x11/0x30
[ 55.806178] notifier_call_chain+0x17e/0x380
[ 55.806181] ? unregister_die_notifier+0x20/0x20
[ 55.806183] ? kasan_check_read+0x11/0x20
[ 55.806186] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[ 55.806188] ? rcu_softirq_qs+0x20/0x20
[ 55.806191] ? rcu_softirq_qs+0x20/0x20
[ 55.806193] ? cmp_ex_search+0x8c/0xb0
[ 55.806196] atomic_notifier_call_chain+0x96/0x190
[ 55.806198] notify_die+0x1bd/0x2d0
[ 55.806201] ? __atomic_notifier_call_chain+0x1a0/0x1a0
[ 55.806204] ? debug_object_deactivate+0x191/0x450
[ 55.806206] ? search_exception_tables+0x47/0x50
[ 55.806209] ? fixup_exception+0xb1/0xde
[ 55.806211] do_general_protection+0x16d/0x2f0
[ 55.806214] general_protection+0x1e/0x30
[ 55.806217] RIP: 0010:debug_object_deactivate+0x191/0x450
[ 55.806225] Code: 02 00 00 48 8b 1b 41 bf 01 00 00 00 48 85 db 74 46 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 18 41 83 c7 01 48 89 fe 48 c1 ee 03 <80> 3c 06 00 0f 85 04 02 00 00 48 3b 53 18 0f 84 53 01 00 00 48 89
[ 55.806228] RSP: 0018:ffff8881daf078b0 EFLAGS: 00010807
[ 55.806233] RAX: dffffc0000000000 RBX: da3ef506c4b2a03d RCX: ffffffff83939c1a
[ 55.806237] RDX: ffff8881bb4ed108 RSI: 1b47dea0d896540a RDI: da3ef506c4b2a055
[ 55.806241] RBP: ffff8881daf07968 R08: ffffed103b5e0f03 R09: ffffed103b5e0f02
[ 55.806244] R10: ffffed103b5e0f02 R11: 0000000000000003 R12: 1ffff1103b5e0f18
[ 55.806248] R13: ffffffff8b23e7a8 R14: ffffffff895a5980 R15: 0000000000000003
[ 55.806251] ? debug_object_deactivate+0x43a/0x450
[ 55.806253] ? debug_stats_show+0x100/0x100
[ 55.806256] ? do_raw_spin_trylock+0x270/0x270
[ 55.806259] ? __queue_work+0x1440/0x1440
[ 55.806261] __run_timers+0x56f/0xc70
[ 55.806263] ? timer_fixup_init+0x70/0x70
[ 55.806266] ? __sanitizer_cov_trace_cmp8+0x18/0x20
[ 55.806268] ? zap_class+0x640/0x640
[ 55.806271] ? enqueue_hrtimer+0x1a5/0x560
[ 55.806274] ? hrtimer_update_softirq_timer+0xa0/0xa0
[ 55.806276] ? find_held_lock+0x36/0x1c0
[ 55.806278] ? pvclock_read_flags+0x160/0x160
[ 55.806281] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[ 55.806284] ? check_preemption_disabled+0x48/0x280
[ 55.806287] ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[ 55.806289] ? rcu_pm_notify+0xc0/0xc0
[ 55.806292] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[ 55.806295] ? check_preemption_disabled+0x48/0x280
[ 55.806298] run_timer_softirq+0x52/0xb0
[ 55.806300] ? rcu_read_lock_sched_held+0x14f/0x180
[ 55.806303] __do_softirq+0x308/0xb7e
[ 55.806305] ? ktime_get_raw_ts64+0x4d0/0x4d0
[ 55.806308] ? lock_downgrade+0x900/0x900
[ 55.806311] ? __irqentry_text_end+0x1f9658/0x1f9658
[ 55.806313] ? pvclock_read_flags+0x160/0x160
[ 55.806316] ? lapic_next_event+0x5a/0x90
[ 55.806319] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[ 55.806321] ? kvm_clock_read+0x18/0x30
[ 55.806324] ? kvm_sched_clock_read+0x9/0x20
[ 55.806327] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[ 55.806330] ? check_preemption_disabled+0x48/0x280
[ 55.806332] irq_exit+0x17f/0x1c0
[ 55.806335] smp_apic_timer_interrupt+0x1cb/0x760
[ 55.806338] ? smp_reschedule_interrupt+0x109/0x650
[ 55.806341] ? smp_call_function_single_interrupt+0x650/0x650
[ 55.806342] ? interrupt_en
[ 55.806347] Lost 39 message(s)!
[ 56.833648] Rebooting in 86400 seconds..