[ OK ] Started Getty on tty1. [ OK ] Started Serial Getty on ttyS0. [ OK ] Started Getty on tty2. [ OK ] Reached target Login Prompts. [ OK ] Started OpenBSD Secure Shell server. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.242' (ECDSA) to the list of known hosts. 2021/07/11 14:03:10 parsed 1 programs 2021/07/11 14:03:10 executed programs: 0 syzkaller login: [ 1579.365246][ T8445] chnl_net:caif_netlink_parms(): no params data found [ 1579.420643][ T8445] bridge0: port 1(bridge_slave_0) entered blocking state [ 1579.429044][ T8445] bridge0: port 1(bridge_slave_0) entered disabled state [ 1579.438521][ T8445] device bridge_slave_0 entered promiscuous mode [ 1579.448267][ T8445] bridge0: port 2(bridge_slave_1) entered blocking state [ 1579.456414][ T8445] bridge0: port 2(bridge_slave_1) entered disabled state [ 1579.463992][ T8445] device bridge_slave_1 entered promiscuous mode [ 1579.485357][ T8445] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 1579.497582][ T8445] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 1579.520294][ T8445] team0: Port device team_slave_0 added [ 1579.527766][ T8445] team0: Port device team_slave_1 added [ 1579.546652][ T8445] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 1579.553719][ T8445] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 1579.580312][ T8445] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 1579.593533][ T8445] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 1579.601653][ T8445] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 1579.628348][ T8445] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 1579.656193][ T8445] device hsr_slave_0 entered promiscuous mode [ 1579.662764][ T8445] device hsr_slave_1 entered promiscuous mode [ 1579.764114][ T8445] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 1579.777608][ T8445] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 1579.788298][ T8445] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 1579.797976][ T8445] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 1579.822994][ T8445] bridge0: port 2(bridge_slave_1) entered blocking state [ 1579.830156][ T8445] bridge0: port 2(bridge_slave_1) entered forwarding state [ 1579.838045][ T8445] bridge0: port 1(bridge_slave_0) entered blocking state [ 1579.845316][ T8445] bridge0: port 1(bridge_slave_0) entered forwarding state [ 1579.887503][ T8445] 8021q: adding VLAN 0 to HW filter on device bond0 [ 1579.900413][ T8419] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 1579.912039][ T8419] bridge0: port 1(bridge_slave_0) entered disabled state [ 1579.920639][ T8419] bridge0: port 2(bridge_slave_1) entered disabled state [ 1579.930129][ T8419] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 1579.943437][ T8445] 8021q: adding VLAN 0 to HW filter on device team0 [ 1579.956116][ T8419] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 1579.965703][ T8419] bridge0: port 1(bridge_slave_0) entered blocking state [ 1579.972777][ T8419] bridge0: port 1(bridge_slave_0) entered forwarding state [ 1579.986152][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 1579.994873][ T7] bridge0: port 2(bridge_slave_1) entered blocking state [ 1580.002005][ T7] bridge0: port 2(bridge_slave_1) entered forwarding state [ 1580.026162][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 1580.034786][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 1580.043022][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 1580.056364][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 1580.064082][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 1580.075842][ T8445] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 1580.092558][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 1580.100062][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 1580.113923][ T8445] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 1580.137601][ T8668] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 1580.152542][ T8445] device veth0_vlan entered promiscuous mode [ 1580.161519][ T8668] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 1580.171559][ T8668] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 1580.179752][ T8668] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 1580.193204][ T8445] device veth1_vlan entered promiscuous mode [ 1580.213521][ T8419] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 1580.221612][ T8419] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 1580.230148][ T8419] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 1580.241388][ T8445] device veth0_macvtap entered promiscuous mode [ 1580.250805][ T8445] device veth1_macvtap entered promiscuous mode [ 1580.268541][ T8445] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 1580.276210][ T8419] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 1580.286810][ T8419] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 1580.298089][ T8445] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 1580.307243][ T8665] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 1580.319913][ T8445] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 1580.330417][ T8445] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 1580.342064][ T8445] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 1580.354132][ T8445] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 1580.446759][ T178] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 1580.460948][ T178] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 1580.488128][ T8419] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 1580.501975][ T8435] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 1580.511798][ T8435] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 1580.522050][ T8419] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 1581.215438][ T8668] Bluetooth: hci0: command 0x0409 tx timeout 2021/07/11 14:03:15 executed programs: 3 [ 1583.284516][ T8668] Bluetooth: hci0: command 0x041b tx timeout [ 1585.365060][ T8668] Bluetooth: hci0: command 0x040f tx timeout [ 1587.444607][ T4823] Bluetooth: hci0: command 0x0419 tx timeout 2021/07/11 14:03:21 executed programs: 9 [ 1607.045800][ T3250] ieee802154 phy0 wpan0: encryption failed: -22 [ 1607.052254][ T3250] ieee802154 phy1 wpan1: encryption failed: -22 [ 1668.485092][ T3250] ieee802154 phy0 wpan0: encryption failed: -22 [ 1668.491369][ T3250] ieee802154 phy1 wpan1: encryption failed: -22 [ 1701.284530][ T8667] Bluetooth: hci0: command 0x0406 tx timeout [ 1729.925322][ T3250] ieee802154 phy0 wpan0: encryption failed: -22 [ 1729.931592][ T3250] ieee802154 phy1 wpan1: encryption failed: -22 [ 1741.444502][ T1640] INFO: task syz-executor.0:8794 blocked for more than 143 seconds. [ 1741.452670][ T1640] Not tainted 5.13.0-syzkaller #0 [ 1741.459435][ T1640] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1741.468248][ T1640] task:syz-executor.0 state:D stack:24720 pid: 8794 ppid: 8445 flags:0x00004004 [ 1741.477584][ T1640] Call Trace: [ 1741.480872][ T1640] __schedule+0xc07/0x11f0 [ 1741.485830][ T1640] ? __sched_text_start+0x8/0x8 [ 1741.490705][ T1640] schedule+0x14b/0x210 [ 1741.495596][ T1640] schedule_timeout+0x98/0x2f0 [ 1741.500376][ T1640] ? console_conditional_schedule+0x40/0x40 [ 1741.506696][ T1640] ? lockdep_hardirqs_on_prepare+0x3e2/0x750 [ 1741.512783][ T1640] ? print_irqtrace_events+0x220/0x220 [ 1741.518669][ T1640] ? _raw_spin_unlock_irq+0x1f/0x40 [ 1741.523888][ T1640] ? lockdep_hardirqs_on+0x8d/0x130 [ 1741.529602][ T1640] do_wait_for_common+0x2da/0x480 [ 1741.534763][ T1640] ? console_conditional_schedule+0x40/0x40 [ 1741.540673][ T1640] ? wait_for_completion_killable_timeout+0x60/0x60 [ 1741.547727][ T1640] ? _raw_spin_lock_irq+0xba/0xf0 [ 1741.552767][ T1640] ? _raw_spin_lock_irqsave+0x100/0x100 [ 1741.558720][ T1640] ? start_flush_work+0x6ee/0x740 [ 1741.563881][ T1640] ? __cancel_work_timer+0x4d3/0x690 [ 1741.569989][ T1640] wait_for_completion+0x48/0x60 [ 1741.575401][ T1640] __cancel_work_timer+0x4dc/0x690 [ 1741.580619][ T1640] ? cancel_work_sync+0x20/0x20 [ 1741.585885][ T1640] ? start_flush_work+0x740/0x740 [ 1741.590935][ T1640] ? _raw_spin_unlock_irqrestore+0x8b/0x120 [ 1741.597360][ T1640] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 1741.603266][ T1640] ? _raw_spin_unlock+0x40/0x40 [ 1741.608604][ T1640] ? p9_fd_create+0x377/0x470 [ 1741.613372][ T1640] ? init_wait_entry+0xd0/0xd0 [ 1741.618569][ T1640] ? remove_wait_queue+0x2f/0x130 [ 1741.623649][ T1640] p9_fd_close+0x2a2/0x3c0 [ 1741.628480][ T1640] p9_client_create+0xa28/0xf80 [ 1741.633385][ T1640] ? p9_parse_header+0x510/0x510 [ 1741.639036][ T1640] ? lockdep_softirqs_off+0x410/0x410 [ 1741.644846][ T1640] ? lockdep_softirqs_off+0x410/0x410 [ 1741.650242][ T1640] ? v9fs_session_init+0xfc/0x18c0 [ 1741.655812][ T1640] ? __raw_spin_lock_init+0x44/0x100 [ 1741.661130][ T1640] v9fs_session_init+0x1e6/0x18c0 [ 1741.666691][ T1640] ? v9fs_show_options+0x600/0x600 [ 1741.671818][ T1640] ? rcu_read_lock_sched_held+0x87/0x110 [ 1741.678198][ T1640] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 1741.684200][ T1640] ? rcu_read_lock_sched_held+0x87/0x110 [ 1741.690574][ T1640] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 1741.696695][ T1640] ? lockdep_init_map_type+0x9f/0x9a0 [ 1741.702097][ T1640] ? v9fs_mount+0x5c/0x870 [ 1741.707018][ T1640] ? kmem_cache_alloc_trace+0x96/0x340 [ 1741.712600][ T1640] ? v9fs_mount+0x5c/0x870 [ 1741.717384][ T1640] ? kmem_cache_alloc_trace+0x96/0x340 [ 1741.722869][ T1640] v9fs_mount+0x72/0x870 [ 1741.727479][ T1640] ? cap_capable+0x27e/0x2d0 [ 1741.732440][ T1640] legacy_get_tree+0xea/0x180 [ 1741.737662][ T1640] ? asan.module_dtor+0x20/0x20 [ 1741.742629][ T1640] vfs_get_tree+0x86/0x270 [ 1741.747550][ T1640] path_mount+0x196f/0x2be0 [ 1741.752120][ T1640] ? __check_object_size+0x2f3/0x3f0 [ 1741.757925][ T1640] ? mark_mounts_for_expiry+0x520/0x520 [ 1741.763510][ T1640] ? getname_flags+0x1fe/0x640 [ 1741.769050][ T1640] __se_sys_mount+0x2f9/0x3b0 [ 1741.773746][ T1640] ? vtime_user_exit+0x2b2/0x3e0 [ 1741.779175][ T1640] ? __x64_sys_mount+0xc0/0xc0 [ 1741.783987][ T1640] ? syscall_enter_from_user_mode+0x2e/0x1b0 [ 1741.790674][ T1640] ? lockdep_hardirqs_on+0x8d/0x130 [ 1741.796267][ T1640] ? __x64_sys_mount+0x1c/0xc0 [ 1741.801069][ T1640] do_syscall_64+0x3d/0xb0 [ 1741.806288][ T1640] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 1741.812192][ T1640] RIP: 0033:0x4665d9 [ 1741.816533][ T1640] RSP: 002b:00007f2e5b739188 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 1741.825117][ T1640] RAX: ffffffffffffffda RBX: 000000000056c1a8 RCX: 00000000004665d9 [ 1741.833170][ T1640] RDX: 0000000020000240 RSI: 0000000020000200 RDI: 0000000000000000 [ 1741.841645][ T1640] RBP: 00000000004bfcb9 R08: 0000000020000580 R09: 0000000000000000 [ 1741.849749][ T1640] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c1a8 [ 1741.858054][ T1640] R13: 00007fffb081cc8f R14: 00007f2e5b739300 R15: 0000000000022000 [ 1741.866483][ T1640] [ 1741.866483][ T1640] Showing all locks held in the system: [ 1741.874193][ T1640] 1 lock held by khungtaskd/1640: [ 1741.879645][ T1640] #0: ffffffff8cf179c0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30 [ 1741.889151][ T1640] 2 locks held by kworker/0:3/4823: [ 1741.894469][ T1640] #0: ffff888011864d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7aa/0x10c0 [ 1741.906677][ T1640] #1: ffffc9000afa7d20 ((work_completion)(&m->wq)){+.+.}-{0:0}, at: process_one_work+0x7e8/0x10c0 [ 1741.918277][ T1640] 1 lock held by in:imklog/8125: [ 1741.923201][ T1640] #0: ffff88801fb1e5f0 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x24e/0x2f0 [ 1741.933991][ T1640] [ 1741.936951][ T1640] ============================================= [ 1741.936951][ T1640] [ 1741.945902][ T1640] NMI backtrace for cpu 1 [ 1741.950271][ T1640] CPU: 1 PID: 1640 Comm: khungtaskd Not tainted 5.13.0-syzkaller #0 [ 1741.958281][ T1640] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1741.968319][ T1640] Call Trace: [ 1741.971583][ T1640] dump_stack_lvl+0x1d3/0x29f [ 1741.976417][ T1640] ? show_regs_print_info+0x12/0x12 [ 1741.981596][ T1640] ? log_buf_vmcoreinfo_setup+0x498/0x498 [ 1741.987347][ T1640] ? printk+0xc0/0x108 [ 1741.991398][ T1640] ? log_buf_vmcoreinfo_setup+0x498/0x498 [ 1741.997188][ T1640] ? wake_up_klogd+0xb2/0xf0 [ 1742.001760][ T1640] ? hw_nmi_get_sample_period+0x40/0x60 [ 1742.007358][ T1640] nmi_cpu_backtrace+0x16c/0x190 [ 1742.012298][ T1640] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 1742.018343][ T1640] nmi_trigger_cpumask_backtrace+0x191/0x2f0 [ 1742.024325][ T1640] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 1742.030588][ T1640] watchdog+0xd06/0xd50 [ 1742.034781][ T1640] kthread+0x453/0x480 [ 1742.038831][ T1640] ? hungtask_pm_notify+0x50/0x50 [ 1742.043866][ T1640] ? kthread_blkcg+0xd0/0xd0 [ 1742.048436][ T1640] ret_from_fork+0x1f/0x30 [ 1742.053218][ T1640] Sending NMI from CPU 1 to CPUs 0: [ 1742.058880][ C0] NMI backtrace for cpu 0 [ 1742.058888][ C0] CPU: 0 PID: 4854 Comm: systemd-journal Not tainted 5.13.0-syzkaller #0 [ 1742.058893][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1742.058899][ C0] RIP: 0010:check_preemption_disabled+0x7e/0x180 [ 1742.058905][ C0] Code: 04 25 28 00 00 00 48 3b 44 24 08 0f 85 0f 01 00 00 89 d8 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f 5d c3 9c 8f 04 24 4c 8b 24 24 00 02 00 00 be 00 02 00 00 4c 21 e6 31 ff 0f 1f 44 00 00 4c 21 [ 1742.058913][ C0] RSP: 0018:ffffc9000132fe18 EFLAGS: 00000046 [ 1742.058924][ C0] RAX: d5f9163bc4276200 RBX: 0000000000000000 RCX: 1ffffffff1f4b400 [ 1742.058929][ C0] RDX: 1ffffffff1f4b400 RSI: 0000000000000000 RDI: 0000000000000000 [ 1742.058934][ C0] RBP: 0000000000000000 R08: ffffffff8fa5a000 R09: ffffffff8fa5a008 [ 1742.058939][ C0] R10: ffffffff8fa5a01c R11: ffffffff8fa5a010 R12: 0000000000000046 [ 1742.058944][ C0] R13: dffffc0000000000 R14: ffffffff8a933fa0 R15: ffffffff8a933f60 [ 1742.058949][ C0] FS: 00007fb8fd4328c0(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 [ 1742.058954][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1742.058959][ C0] CR2: 00007fb8fa80e000 CR3: 00000000151bd000 CR4: 00000000001506f0 [ 1742.058963][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1742.058968][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1742.058973][ C0] Call Trace: [ 1742.058976][ C0] account_other_time+0x18e/0x280 [ 1742.058980][ C0] vtime_user_enter+0xfd/0x2d0 [ 1742.058984][ C0] ? __context_tracking_enter+0xa5/0xf0 [ 1742.058988][ C0] __context_tracking_enter+0xa5/0xf0 [ 1742.058991][ C0] ? do_syscall_64+0x4c/0xb0 [ 1742.058995][ C0] syscall_exit_to_user_mode+0x5b/0x60 [ 1742.058999][ C0] do_syscall_64+0x4c/0xb0 [ 1742.059003][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 1742.059007][ C0] RIP: 0033:0x7fb8fc6caf17 [ 1742.059013][ C0] Code: ff ff ff 48 8b 4d a0 0f b7 51 fe 48 8b 4d a8 66 89 54 08 fe e9 1a ff ff ff 66 2e 0f 1f 84 00 00 00 00 00 b8 27 00 00 00 0f 05 0f 1f 84 00 00 00 00 00 b8 6e 00 00 00 0f 05 c3 0f 1f 84 00 00 [ 1742.059021][ C0] RSP: 002b:00007ffc847d69d8 EFLAGS: 00000202 ORIG_RAX: 0000000000000027 [ 1742.059030][ C0] RAX: 00000000000012f6 RBX: 000055b8cef281e0 RCX: 00007fb8fc6caf17 [ 1742.059035][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000055b8cef281e0 [ 1742.059040][ C0] RBP: 00007ffc847d6ad0 R08: 00007ffc847dc080 R09: 0000000000000000 [ 1742.059045][ C0] R10: 00007ffc847dc0a8 R11: 0000000000000202 R12: 00000000000012f6 [ 1742.059050][ C0] R13: 00007fb8fd134147 R14: 0000000000000000 R15: 0005c6d980c986e5 [ 1742.059633][ T1640] Kernel panic - not syncing: hung_task: blocked tasks [ 1742.317105][ T1640] CPU: 1 PID: 1640 Comm: khungtaskd Not tainted 5.13.0-syzkaller #0 [ 1742.325087][ T1640] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1742.335158][ T1640] Call Trace: [ 1742.338440][ T1640] dump_stack_lvl+0x1ae/0x29f [ 1742.343128][ T1640] ? show_regs_print_info+0x12/0x12 [ 1742.348326][ T1640] ? log_buf_vmcoreinfo_setup+0x498/0x498 [ 1742.354070][ T1640] ? lockdep_hardirqs_off+0x69/0xf0 [ 1742.359286][ T1640] panic+0x2e1/0x850 [ 1742.363240][ T1640] ? _raw_spin_unlock+0x40/0x40 [ 1742.368092][ T1640] ? nmi_trigger_cpumask_backtrace+0x236/0x2f0 [ 1742.374245][ T1640] ? nmi_panic+0x90/0x90 [ 1742.378484][ T1640] ? preempt_schedule_thunk+0x16/0x18 [ 1742.383859][ T1640] ? nmi_trigger_cpumask_backtrace+0x236/0x2f0 [ 1742.390015][ T1640] ? nmi_trigger_cpumask_backtrace+0x29b/0x2f0 [ 1742.396183][ T1640] ? nmi_trigger_cpumask_backtrace+0x2a0/0x2f0 [ 1742.402340][ T1640] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 1742.408411][ T1640] watchdog+0xd46/0xd50 [ 1742.412584][ T1640] kthread+0x453/0x480 [ 1742.416650][ T1640] ? hungtask_pm_notify+0x50/0x50 [ 1742.421703][ T1640] ? kthread_blkcg+0xd0/0xd0 [ 1742.426291][ T1640] ret_from_fork+0x1f/0x30 [ 1742.431837][ T1640] Kernel Offset: disabled [ 1742.436161][ T1640] Rebooting in 86400 seconds..