[[0;32m OK [0m] Reached target Graphical Interface.
Starting Update UTMP about System Runlevel Changes...
[[0;32m OK [0m] Started Update UTMP about System Runlevel Changes.
Starting Load/Save RF Kill Switch Status...
[[0;32m OK [0m] Started Load/Save RF Kill Switch Status.
Debian GNU/Linux 9 syzkaller ttyS0
Warning: Permanently added '10.128.0.188' (ECDSA) to the list of known hosts.
syzkaller login: [ 490.300100][ T8496] IPVS: ftp: loaded support on port[0] = 21
[ 490.390026][ T8496] chnl_net:caif_netlink_parms(): no params data found
[ 490.441611][ T8496] bridge0: port 1(bridge_slave_0) entered blocking state
[ 490.449882][ T8496] bridge0: port 1(bridge_slave_0) entered disabled state
[ 490.457578][ T8496] device bridge_slave_0 entered promiscuous mode
[ 490.467048][ T8496] bridge0: port 2(bridge_slave_1) entered blocking state
[ 490.474763][ T8496] bridge0: port 2(bridge_slave_1) entered disabled state
[ 490.483468][ T8496] device bridge_slave_1 entered promiscuous mode
[ 490.503900][ T8496] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[ 490.515157][ T8496] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[ 490.537927][ T8496] team0: Port device team_slave_0 added
[ 490.545983][ T8496] team0: Port device team_slave_1 added
[ 490.562828][ T8496] batman_adv: batadv0: Adding interface: batadv_slave_0
[ 490.569844][ T8496] 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.
[ 490.596012][ T8496] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[ 490.609476][ T8496] batman_adv: batadv0: Adding interface: batadv_slave_1
[ 490.616414][ T8496] 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.
[ 490.642814][ T8496] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[ 490.669391][ T8496] device hsr_slave_0 entered promiscuous mode
[ 490.676313][ T8496] device hsr_slave_1 entered promiscuous mode
[ 490.773071][ T8496] netdevsim netdevsim0 netdevsim0: renamed from eth0
[ 490.782884][ T8496] netdevsim netdevsim0 netdevsim1: renamed from eth1
[ 490.793013][ T8496] netdevsim netdevsim0 netdevsim2: renamed from eth2
[ 490.802706][ T8496] netdevsim netdevsim0 netdevsim3: renamed from eth3
[ 490.827402][ T8496] bridge0: port 2(bridge_slave_1) entered blocking state
[ 490.834564][ T8496] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 490.842348][ T8496] bridge0: port 1(bridge_slave_0) entered blocking state
[ 490.849485][ T8496] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 490.893805][ T8496] 8021q: adding VLAN 0 to HW filter on device bond0
[ 490.907372][ T8488] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
[ 490.920253][ T8488] bridge0: port 1(bridge_slave_0) entered disabled state
[ 490.928248][ T8488] bridge0: port 2(bridge_slave_1) entered disabled state
[ 490.937123][ T8488] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready
[ 490.949798][ T8496] 8021q: adding VLAN 0 to HW filter on device team0
[ 490.961919][ T8703] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready
[ 490.970613][ T8703] bridge0: port 1(bridge_slave_0) entered blocking state
[ 490.977653][ T8703] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 491.000391][ T8703] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready
[ 491.009645][ T8703] bridge0: port 2(bridge_slave_1) entered blocking state
[ 491.016681][ T8703] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 491.025357][ T8703] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready
[ 491.036279][ T42] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready
[ 491.044498][ T42] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready
[ 491.060738][ T42] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready
[ 491.069092][ T42] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready
[ 491.083318][ T8496] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready
[ 491.101863][ T42] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
[ 491.110120][ T42] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
[ 491.123974][ T8496] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 491.141986][ T8488] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready
[ 491.160286][ T3191] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready
[ 491.170878][ T3191] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready
[ 491.179566][ T3191] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready
[ 491.190836][ T8496] device veth0_vlan entered promiscuous mode
[ 491.203665][ T8496] device veth1_vlan entered promiscuous mode
[ 491.223941][ T42] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready
[ 491.232312][ T42] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready
[ 491.241025][ T42] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready
[ 491.252676][ T8496] device veth0_macvtap entered promiscuous mode
[ 491.263192][ T8496] device veth1_macvtap entered promiscuous mode
[ 491.280140][ T8496] batman_adv: batadv0: Interface activated: batadv_slave_0
[ 491.287463][ T3191] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready
[ 491.299479][ T3191] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready
[ 491.311251][ T8496] batman_adv: batadv0: Interface activated: batadv_slave_1
[ 491.319899][ T8706] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready
executing program
executing program
[ 491.333112][ T8496] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[ 491.341912][ T8496] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[ 491.351017][ T8496] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[ 491.360195][ T8496] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[ 716.158154][ T1642] INFO: task kworker/1:1:42 blocked for more than 143 seconds.
[ 716.165868][ T1642] Not tainted 5.10.0-rc7-syzkaller #0
[ 716.184456][ T1642] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 716.193932][ T1642] task:kworker/1:1 state:D stack:27120 pid: 42 ppid: 2 flags:0x00004000
[ 716.205378][ T1642] Workqueue: ipv6_addrconf addrconf_dad_work
[ 716.212147][ T1642] Call Trace:
[ 716.215457][ T1642] __schedule+0x893/0x2130
[ 716.222463][ T1642] ? io_schedule_timeout+0x140/0x140
[ 716.227763][ T1642] ? _raw_spin_unlock_irq+0x1f/0x40
[ 716.234123][ T1642] ? lockdep_hardirqs_on+0x79/0x100
[ 716.242750][ T1642] schedule+0xcf/0x270
[ 716.246838][ T1642] schedule_preempt_disabled+0xf/0x20
[ 716.258978][ T1642] __mutex_lock+0x3e2/0x10e0
[ 716.263581][ T1642] ? addrconf_dad_work+0xa3/0x1280
[ 716.272397][ T1642] ? mutex_lock_io_nested+0xf60/0xf60
[ 716.277779][ T1642] ? debug_object_deactivate+0x264/0x300
[ 716.284638][ T1642] ? lockdep_hardirqs_on_prepare+0x400/0x400
[ 716.292899][ T1642] addrconf_dad_work+0xa3/0x1280
[ 716.297854][ T1642] ? addrconf_dad_completed+0xc60/0xc60
[ 716.304990][ T1642] process_one_work+0x933/0x15a0
[ 716.312215][ T1642] ? lock_release+0x710/0x710
[ 716.316904][ T1642] ? pwq_dec_nr_in_flight+0x320/0x320
[ 716.324538][ T1642] ? rwlock_bug.part.0+0x90/0x90
[ 716.331713][ T1642] ? _raw_spin_lock_irq+0x41/0x50
[ 716.336755][ T1642] worker_thread+0x64c/0x1120
[ 716.342637][ T1642] ? process_one_work+0x15a0/0x15a0
[ 716.347850][ T1642] kthread+0x3b1/0x4a0
[ 716.354461][ T1642] ? kthread_create_worker_on_cpu+0xf0/0xf0
[ 716.361226][ T1642] ret_from_fork+0x1f/0x30
[ 716.365764][ T1642] INFO: task kworker/0:3:3191 blocked for more than 143 seconds.
[ 716.376265][ T1642] Not tainted 5.10.0-rc7-syzkaller #0
[ 716.382969][ T1642] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 716.393743][ T1642] task:kworker/0:3 state:D stack:26904 pid: 3191 ppid: 2 flags:0x00004000
[ 716.405384][ T1642] Workqueue: ipv6_addrconf addrconf_dad_work
[ 716.413518][ T1642] Call Trace:
[ 716.416825][ T1642] __schedule+0x893/0x2130
[ 716.422392][ T1642] ? io_schedule_timeout+0x140/0x140
[ 716.427688][ T1642] ? _raw_spin_unlock_irq+0x1f/0x40
[ 716.435708][ T1642] ? lockdep_hardirqs_on+0x79/0x100
[ 716.441663][ T1642] schedule+0xcf/0x270
[ 716.445742][ T1642] schedule_preempt_disabled+0xf/0x20
[ 716.453769][ T1642] __mutex_lock+0x3e2/0x10e0
[ 716.459103][ T1642] ? addrconf_dad_work+0xa3/0x1280
[ 716.464227][ T1642] ? mutex_lock_io_nested+0xf60/0xf60
[ 716.472137][ T1642] ? debug_object_deactivate+0x264/0x300
[ 716.477903][ T1642] ? lockdep_hardirqs_on_prepare+0x400/0x400
[ 716.485182][ T1642] addrconf_dad_work+0xa3/0x1280
[ 716.492390][ T1642] ? addrconf_dad_completed+0xc60/0xc60
[ 716.498678][ T1642] process_one_work+0x933/0x15a0
[ 716.503631][ T1642] ? lock_release+0x710/0x710
[ 716.510845][ T1642] ? pwq_dec_nr_in_flight+0x320/0x320
[ 716.516232][ T1642] ? rwlock_bug.part.0+0x90/0x90
[ 716.522292][ T1642] ? _raw_spin_lock_irq+0x41/0x50
[ 716.527467][ T1642] worker_thread+0x64c/0x1120
[ 716.536619][ T1642] ? process_one_work+0x15a0/0x15a0
[ 716.542681][ T1642] kthread+0x3b1/0x4a0
[ 716.546768][ T1642] ? kthread_create_worker_on_cpu+0xf0/0xf0
[ 716.555188][ T1642] ret_from_fork+0x1f/0x30
[ 716.560488][ T1642]
[ 716.560488][ T1642] Showing all locks held in the system:
[ 716.570461][ T1642] 3 locks held by kworker/1:1/42:
[ 716.575485][ T1642] #0: ffff888147116538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0
[ 716.589589][ T1642] #1: ffffc90000e3fda8 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0
[ 716.602639][ T1642] #2: ffffffff8c927948 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xa3/0x1280
[ 716.614252][ T1642] 1 lock held by khungtaskd/1642:
[ 716.619997][ T1642] #0: ffffffff8b3378e0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260
[ 716.632097][ T1642] 3 locks held by kworker/0:3/3191:
[ 716.637291][ T1642] #0: ffff888147116538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0
[ 716.650832][ T1642] #1: ffffc9000237fda8 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0
[ 716.664934][ T1642] #2: ffffffff8c927948 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xa3/0x1280
[ 716.676664][ T1642] 1 lock held by in:imklog/8169:
[ 716.682555][ T1642] #0: ffff88801326cd70 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100
[ 716.694056][ T1642] 1 lock held by syz-executor552/8708:
[ 716.700274][ T1642]
[ 716.702603][ T1642] =============================================
[ 716.702603][ T1642]
[ 716.714063][ T1642] NMI backtrace for cpu 1
[ 716.718592][ T1642] CPU: 1 PID: 1642 Comm: khungtaskd Not tainted 5.10.0-rc7-syzkaller #0
[ 716.726906][ T1642] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 716.736951][ T1642] Call Trace:
[ 716.740239][ T1642] dump_stack+0x107/0x163
[ 716.744571][ T1642] nmi_cpu_backtrace.cold+0x44/0xd7
[ 716.749771][ T1642] ? lapic_can_unplug_cpu+0x80/0x80
[ 716.754972][ T1642] nmi_trigger_cpumask_backtrace+0x1b3/0x230
[ 716.760954][ T1642] watchdog+0xd43/0xfa0
[ 716.765111][ T1642] ? reset_hung_task_detector+0x30/0x30
[ 716.770669][ T1642] kthread+0x3b1/0x4a0
[ 716.774735][ T1642] ? kthread_create_worker_on_cpu+0xf0/0xf0
[ 716.780629][ T1642] ret_from_fork+0x1f/0x30
[ 716.785123][ T1642] Sending NMI from CPU 1 to CPUs 0:
[ 716.791586][ C0] NMI backtrace for cpu 0
[ 716.791592][ C0] CPU: 0 PID: 8708 Comm: syz-executor552 Not tainted 5.10.0-rc7-syzkaller #0
[ 716.791599][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 716.791602][ C0] RIP: 0010:lock_release+0x12/0x710
[ 716.791613][ C0] Code: 8c e8 b2 5c 5b 00 e9 6d fd ff ff 0f 1f 00 66 2e 0f 1f 84 00 00 00 00 00 48 b8 00 00 00 00 00 fc ff df 41 57 41 56 41 55 41 54 <49> 89 fc 55 53 48 81 ec 90 00 00 00 48 8d 6c 24 10 48 89 74 24 08
[ 716.791617][ C0] RSP: 0018:ffffc90001bdec68 EFLAGS: 00000246
[ 716.791626][ C0] RAX: dffffc0000000000 RBX: dffffc0000000000 RCX: ffffffff871167b2
[ 716.791631][ C0] RDX: ffff88801b799a40 RSI: ffffffff8711698e RDI: ffff8880204df868
[ 716.791636][ C0] RBP: ffffc90001bdedf8 R08: 0000000000000000 R09: ffff8880204df807
[ 716.791641][ C0] R10: fffffffffffff000 R11: 0000000000000000 R12: ffffc90001bdef80
[ 716.791646][ C0] R13: 0000000000000001 R14: 1ffff9200037bd96 R15: ffff8880204df800
[ 716.791651][ C0] FS: 00000000018ce880(0000) GS:ffff8880b9e00000(0000) knlGS:0000000000000000
[ 716.791656][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 716.791661][ C0] CR2: 00007f6e9c03d058 CR3: 000000001475a000 CR4: 00000000001506f0
[ 716.791666][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 716.791670][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 716.791673][ C0] Call Trace:
[ 716.791677][ C0] __mutex_unlock_slowpath+0x81/0x610
[ 716.791681][ C0] ? __sanitizer_cov_trace_const_cmp8+0x4/0x20
[ 716.791685][ C0] ? wait_for_completion+0x260/0x260
[ 716.791689][ C0] tcf_idr_check_alloc+0x29e/0x3b0
[ 716.791692][ C0] tcf_police_init+0x347/0x13a0
[ 716.791696][ C0] ? tcf_police_cleanup+0x60/0x60
[ 716.791699][ C0] ? find_held_lock+0x2d/0x110
[ 716.791703][ C0] ? tc_lookup_action_n+0xcd/0xf0
[ 716.791706][ C0] ? __kernel_text_address+0x9/0x30
[ 716.791710][ C0] tcf_action_init_1+0x1a3/0x990
[ 716.791714][ C0] ? tcf_action_dump_old+0x80/0x80
[ 716.791718][ C0] ? stack_trace_consume_entry+0x160/0x160
[ 716.791721][ C0] ? kasan_save_stack+0x32/0x40
[ 716.791724][ C0] ? kasan_save_stack+0x32/0x40
[ 716.791728][ C0] ? kasan_save_stack+0x1b/0x40
[ 716.791732][ C0] ? __kasan_kmalloc.constprop.0+0xc2/0xd0
[ 716.791735][ C0] ? fw_change+0x91b/0x13e0
[ 716.791739][ C0] ? tc_new_tfilter+0x1398/0x2130
[ 716.791742][ C0] ? netlink_rcv_skb+0x153/0x420
[ 716.791746][ C0] ? netlink_unicast+0x533/0x7d0
[ 716.791749][ C0] ? netlink_sendmsg+0x856/0xd90
[ 716.791753][ C0] ? sock_sendmsg+0xcf/0x120
[ 716.791756][ C0] ? ____sys_sendmsg+0x331/0x810
[ 716.791760][ C0] ? ___sys_sendmsg+0xf3/0x170
[ 716.791763][ C0] tcf_exts_validate+0x138/0x420
[ 716.791767][ C0] ? tcf_exts_destroy+0xc0/0xc0
[ 716.791770][ C0] fw_set_parms+0x13d/0xaa0
[ 716.791773][ C0] ? fw_delete+0x8c0/0x8c0
[ 716.791777][ C0] ? kasan_unpoison_shadow+0x33/0x40
[ 716.791780][ C0] fw_change+0xa30/0x13e0
[ 716.791784][ C0] ? lock_downgrade+0x6d0/0x6d0
[ 716.791787][ C0] ? fw_set_parms+0xaa0/0xaa0
[ 716.791791][ C0] tc_new_tfilter+0x1398/0x2130
[ 716.791794][ C0] ? fw_set_parms+0xaa0/0xaa0
[ 716.791798][ C0] ? tc_del_tfilter+0x15c0/0x15c0
[ 716.791802][ C0] ? tc_del_tfilter+0x15c0/0x15c0
[ 716.791805][ C0] rtnetlink_rcv_msg+0x80e/0xad0
[ 716.791809][ C0] ? rtnetlink_put_metrics+0x510/0x510
[ 716.791813][ C0] ? netdev_core_pick_tx+0x2e0/0x2e0
[ 716.791816][ C0] netlink_rcv_skb+0x153/0x420
[ 716.791820][ C0] ? rtnetlink_put_metrics+0x510/0x510
[ 716.791823][ C0] ? netlink_ack+0xaa0/0xaa0
[ 716.791827][ C0] ? netlink_deliver_tap+0x227/0xb70
[ 716.791830][ C0] netlink_unicast+0x533/0x7d0
[ 716.791834][ C0] ? netlink_attachskb+0x810/0x810
[ 716.791838][ C0] ? __phys_addr_symbol+0x2c/0x70
[ 716.791842][ C0] ? __check_object_size+0x171/0x3f0
[ 716.791845][ C0] netlink_sendmsg+0x856/0xd90
[ 716.791849][ C0] ? netlink_unicast+0x7d0/0x7d0
[ 716.791853][ C0] ? bpf_lsm_socket_sendmsg+0x5/0x10
[ 716.791856][ C0] ? netlink_unicast+0x7d0/0x7d0
[ 716.791859][ C0] sock_sendmsg+0xcf/0x120
[ 716.791863][ C0] ____sys_sendmsg+0x331/0x810
[ 716.791866][ C0] ? kernel_sendmsg+0x50/0x50
[ 716.791869][ C0] ? do_recvmmsg+0x6c0/0x6c0
[ 716.791873][ C0] ? __lock_acquire+0x16b7/0x5500
[ 716.791876][ C0] ___sys_sendmsg+0xf3/0x170
[ 716.791880][ C0] ? sendmsg_copy_msghdr+0x160/0x160
[ 716.791883][ C0] ? find_held_lock+0x2d/0x110
[ 716.791887][ C0] ? __might_fault+0xd3/0x180
[ 716.791890][ C0] ? lock_downgrade+0x6d0/0x6d0
[ 716.791894][ C0] __sys_sendmmsg+0x195/0x470
[ 716.791897][ C0] ? __ia32_sys_sendmsg+0xb0/0xb0
[ 716.791901][ C0] ? sockfd_lookup_light+0xc6/0x180
[ 716.791904][ C0] ? __sys_sendmsg+0x10c/0x1b0
[ 716.791908][ C0] ? __sys_sendmsg_sock+0xb0/0xb0
[ 716.791911][ C0] __x64_sys_sendmmsg+0x99/0x100
[ 716.791915][ C0] ? syscall_enter_from_user_mode+0x1d/0x50
[ 716.791919][ C0] do_syscall_64+0x2d/0x70
[ 716.791923][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 716.791926][ C0] RIP: 0033:0x4458a9
[ 716.791936][ C0] Code: e8 6c 05 03 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 9b 07 fc ff c3 66 2e 0f 1f 84 00 00 00 00
[ 716.791941][ C0] RSP: 002b:00007ffedc5c9a48 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
[ 716.791949][ C0] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004458a9
[ 716.791954][ C0] RDX: 010efe10675dec16 RSI: 0000000020000200 RDI: 0000000000000003
[ 716.791959][ C0] RBP: 00007ffedc5c9a50 R08: 0000000000000000 R09: 0000000000000000
[ 716.791964][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000077fa8
[ 716.791969][ C0] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[ 716.791975][ C0] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.164 msecs
[ 716.794920][ T1642] Kernel panic - not syncing: hung_task: blocked tasks
[ 717.362561][ T1642] CPU: 1 PID: 1642 Comm: khungtaskd Not tainted 5.10.0-rc7-syzkaller #0
[ 717.370876][ T1642] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 717.380922][ T1642] Call Trace:
[ 717.384216][ T1642] dump_stack+0x107/0x163
[ 717.388558][ T1642] panic+0x306/0x73d
[ 717.392453][ T1642] ? __warn_printk+0xf3/0xf3
[ 717.397046][ T1642] ? lapic_can_unplug_cpu+0x80/0x80
[ 717.402240][ T1642] ? preempt_schedule_thunk+0x16/0x18
[ 717.407613][ T1642] ? watchdog.cold+0x5/0x158
[ 717.412220][ T1642] ? watchdog+0xa80/0xfa0
[ 717.416554][ T1642] watchdog.cold+0x16/0x158
[ 717.421062][ T1642] ? reset_hung_task_detector+0x30/0x30
[ 717.426606][ T1642] kthread+0x3b1/0x4a0
[ 717.430673][ T1642] ? kthread_create_worker_on_cpu+0xf0/0xf0
[ 717.436564][ T1642] ret_from_fork+0x1f/0x30
[ 717.441697][ T1642] Kernel Offset: disabled
[ 717.446020][ T1642] Rebooting in 86400 seconds..