Warning: Permanently added '10.128.1.76' (ED25519) to the list of known hosts.
2026/02/08 01:13:54 ignoring optional flag "type"="gce"
2026/02/08 01:13:54 parsed 1 programs
2026/02/08 01:13:54 executed programs: 0
[ 96.397836][ T61] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1
[ 96.400516][ T61] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9
[ 96.401732][ T61] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9
[ 96.402762][ T61] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4
[ 96.403831][ T61] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2
[ 96.656891][ T5932] chnl_net:caif_netlink_parms(): no params data found
[ 96.946992][ T5932] bridge0: port 1(bridge_slave_0) entered blocking state
[ 96.947141][ T5932] bridge0: port 1(bridge_slave_0) entered disabled state
[ 96.947254][ T5932] bridge_slave_0: entered allmulticast mode
[ 96.948601][ T5932] bridge_slave_0: entered promiscuous mode
[ 96.951877][ T5932] bridge0: port 2(bridge_slave_1) entered blocking state
[ 96.951988][ T5932] bridge0: port 2(bridge_slave_1) entered disabled state
[ 96.952080][ T5932] bridge_slave_1: entered allmulticast mode
[ 96.953532][ T5932] bridge_slave_1: entered promiscuous mode
[ 97.080001][ T5932] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[ 97.083102][ T5932] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[ 97.229594][ T5932] team0: Port device team_slave_0 added
[ 97.232854][ T5932] team0: Port device team_slave_1 added
[ 97.428160][ T5932] batman_adv: batadv0: Adding interface: batadv_slave_0
[ 97.428177][ T5932] 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 1532 would solve the problem.
[ 97.428201][ T5932] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[ 97.430341][ T5932] batman_adv: batadv0: Adding interface: batadv_slave_1
[ 97.430354][ T5932] 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 1532 would solve the problem.
[ 97.430378][ T5932] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[ 97.900987][ T5932] hsr_slave_0: entered promiscuous mode
[ 97.901719][ T5932] hsr_slave_1: entered promiscuous mode
[ 98.465668][ T61] Bluetooth: hci0: command tx timeout
[ 99.467189][ T5932] netdevsim netdevsim0 netdevsim0: renamed from eth0
[ 99.502535][ T5932] netdevsim netdevsim0 netdevsim1: renamed from eth1
[ 99.541682][ T5932] netdevsim netdevsim0 netdevsim2: renamed from eth2
[ 99.587453][ T5932] netdevsim netdevsim0 netdevsim3: renamed from eth3
[ 99.763413][ T5932] 8021q: adding VLAN 0 to HW filter on device bond0
[ 99.800485][ T5932] 8021q: adding VLAN 0 to HW filter on device team0
[ 99.814231][ T161] bridge0: port 1(bridge_slave_0) entered blocking state
[ 99.814316][ T161] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 99.842175][ T161] bridge0: port 2(bridge_slave_1) entered blocking state
[ 99.842304][ T161] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 100.177949][ T5932] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 100.245361][ T5932] veth0_vlan: entered promiscuous mode
[ 100.257425][ T5932] veth1_vlan: entered promiscuous mode
[ 100.308854][ T5932] veth0_macvtap: entered promiscuous mode
[ 100.318525][ T5932] veth1_macvtap: entered promiscuous mode
[ 100.338257][ T5932] batman_adv: batadv0: Interface activated: batadv_slave_0
[ 100.350008][ T5932] batman_adv: batadv0: Interface activated: batadv_slave_1
[ 100.363420][ T1336] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[ 100.364381][ T1336] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[ 100.364423][ T1336] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[ 100.364455][ T1336] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[ 100.557060][ T61] Bluetooth: hci0: command tx timeout
[ 100.687633][ T6062] nbd0: detected capacity change from 0 to 4398046511104
[ 101.424563][ T61] block nbd0: Receive control failed (result -104)
[ 102.637156][ T61] Bluetooth: hci0: command tx timeout
[ 104.705768][ T61] Bluetooth: hci0: command tx timeout
[ 131.065789][ T11] block nbd0: Possible stuck request ffff888025115080: control (read@0,4096B). Runtime 30 seconds
[ 132.950605][ T1321] ieee802154 phy0 wpan0: encryption failed: -22
[ 132.950647][ T1321] ieee802154 phy1 wpan1: encryption failed: -22
2026/02/08 01:14:54 executed programs: 1
[ 157.678838][ T5113] Bluetooth: hci1: unexpected cc 0x0c03 length: 249 > 1
[ 157.681674][ T5113] Bluetooth: hci1: unexpected cc 0x1003 length: 249 > 9
[ 157.683228][ T5113] Bluetooth: hci1: unexpected cc 0x1001 length: 249 > 9
[ 157.684236][ T5113] Bluetooth: hci1: unexpected cc 0x0c23 length: 249 > 4
[ 157.684904][ T5113] Bluetooth: hci1: unexpected cc 0x0c38 length: 249 > 2
[ 157.913384][ T6158] chnl_net:caif_netlink_parms(): no params data found
[ 158.176966][ T6158] bridge0: port 1(bridge_slave_0) entered blocking state
[ 158.177090][ T6158] bridge0: port 1(bridge_slave_0) entered disabled state
[ 158.177189][ T6158] bridge_slave_0: entered allmulticast mode
[ 158.178502][ T6158] bridge_slave_0: entered promiscuous mode
[ 158.180775][ T6158] bridge0: port 2(bridge_slave_1) entered blocking state
[ 158.180886][ T6158] bridge0: port 2(bridge_slave_1) entered disabled state
[ 158.181130][ T6158] bridge_slave_1: entered allmulticast mode
[ 158.182425][ T6158] bridge_slave_1: entered promiscuous mode
[ 158.319351][ T6158] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[ 158.321894][ T6158] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[ 158.468578][ T6158] team0: Port device team_slave_0 added
[ 158.470731][ T6158] team0: Port device team_slave_1 added
[ 158.607992][ T6158] batman_adv: batadv0: Adding interface: batadv_slave_0
[ 158.608005][ T6158] 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 1532 would solve the problem.
[ 158.608019][ T6158] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[ 158.609239][ T6158] batman_adv: batadv0: Adding interface: batadv_slave_1
[ 158.609251][ T6158] 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 1532 would solve the problem.
[ 158.609272][ T6158] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[ 158.811679][ T6158] hsr_slave_0: entered promiscuous mode
[ 158.812589][ T6158] hsr_slave_1: entered promiscuous mode
[ 158.813247][ T6158] debugfs: 'hsr0' already exists in 'hsr'
[ 158.813322][ T6158] Cannot create hsr debugfs directory
[ 159.400101][ T6158] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 159.607841][ T6158] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 159.745779][ T61] Bluetooth: hci1: command tx timeout
[ 159.797637][ T6158] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 160.031157][ T6158] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 160.273012][ T6158] netdevsim netdevsim0 netdevsim0: renamed from eth0
[ 160.299276][ T6158] netdevsim netdevsim0 netdevsim1: renamed from eth1
[ 160.318799][ T6158] netdevsim netdevsim0 netdevsim2: renamed from eth2
[ 160.359008][ T6158] netdevsim netdevsim0 netdevsim3: renamed from eth3
[ 160.470435][ T6158] 8021q: adding VLAN 0 to HW filter on device bond0
[ 160.487996][ T6158] 8021q: adding VLAN 0 to HW filter on device team0
[ 160.495009][ T161] bridge0: port 1(bridge_slave_0) entered blocking state
[ 160.496176][ T161] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 160.523371][ T12] bridge0: port 2(bridge_slave_1) entered blocking state
[ 160.523565][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 160.709307][ T6158] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 160.756234][ T6158] veth0_vlan: entered promiscuous mode
[ 160.761522][ T6158] veth1_vlan: entered promiscuous mode
[ 160.793468][ T6158] veth0_macvtap: entered promiscuous mode
[ 160.798993][ T6158] veth1_macvtap: entered promiscuous mode
[ 160.817677][ T6158] batman_adv: batadv0: Interface activated: batadv_slave_0
[ 160.825009][ T6158] batman_adv: batadv0: Interface activated: batadv_slave_1
[ 160.849890][ T1336] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[ 160.850624][ T1336] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[ 160.851954][ T1336] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[ 160.851992][ T1336] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[ 161.145672][ T11] block nbd0: Possible stuck request ffff888025115080: control (read@0,4096B). Runtime 60 seconds
[ 161.825892][ T61] Bluetooth: hci1: command tx timeout
[ 163.905733][ T61] Bluetooth: hci1: command tx timeout
[ 164.051660][ T5163] udevd[5163]: worker [5917] /devices/virtual/block/nbd0 is taking a long time
[ 165.986689][ T61] Bluetooth: hci1: command tx timeout
[ 191.225738][ T11] block nbd0: Possible stuck request ffff888025115080: control (read@0,4096B). Runtime 90 seconds
[ 194.390094][ T1321] ieee802154 phy0 wpan0: encryption failed: -22
[ 194.390156][ T1321] ieee802154 phy1 wpan1: encryption failed: -22
2026/02/08 01:15:55 executed programs: 2
[ 218.158612][ T5113] Bluetooth: hci2: unexpected cc 0x0c03 length: 249 > 1
[ 218.160874][ T5113] Bluetooth: hci2: unexpected cc 0x1003 length: 249 > 9
[ 218.161622][ T5113] Bluetooth: hci2: unexpected cc 0x1001 length: 249 > 9
[ 218.163443][ T5113] Bluetooth: hci2: unexpected cc 0x0c23 length: 249 > 4
[ 218.164433][ T5113] Bluetooth: hci2: unexpected cc 0x0c38 length: 249 > 2
[ 218.368160][ T6187] chnl_net:caif_netlink_parms(): no params data found
[ 218.617498][ T6187] bridge0: port 1(bridge_slave_0) entered blocking state
[ 218.617790][ T6187] bridge0: port 1(bridge_slave_0) entered disabled state
[ 218.617941][ T6187] bridge_slave_0: entered allmulticast mode
[ 218.619381][ T6187] bridge_slave_0: entered promiscuous mode
[ 218.621594][ T6187] bridge0: port 2(bridge_slave_1) entered blocking state
[ 218.621706][ T6187] bridge0: port 2(bridge_slave_1) entered disabled state
[ 218.621988][ T6187] bridge_slave_1: entered allmulticast mode
[ 218.623314][ T6187] bridge_slave_1: entered promiscuous mode
[ 218.759518][ T6187] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[ 218.763712][ T6187] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[ 218.919378][ T6187] team0: Port device team_slave_0 added
[ 218.921464][ T6187] team0: Port device team_slave_1 added
[ 219.057638][ T6187] batman_adv: batadv0: Adding interface: batadv_slave_0
[ 219.057654][ T6187] 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 1532 would solve the problem.
[ 219.057673][ T6187] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[ 219.059026][ T6187] batman_adv: batadv0: Adding interface: batadv_slave_1
[ 219.059038][ T6187] 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 1532 would solve the problem.
[ 219.059057][ T6187] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[ 219.221576][ T6187] hsr_slave_0: entered promiscuous mode
[ 219.222793][ T6187] hsr_slave_1: entered promiscuous mode
[ 219.223450][ T6187] debugfs: 'hsr0' already exists in 'hsr'
[ 219.223489][ T6187] Cannot create hsr debugfs directory
[ 219.900755][ T6187] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 220.127777][ T6187] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 220.225760][ T61] Bluetooth: hci2: command tx timeout
[ 220.317565][ T6187] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 220.521613][ T6187] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 220.740846][ T6187] netdevsim netdevsim0 netdevsim0: renamed from eth0
[ 220.779261][ T6187] netdevsim netdevsim0 netdevsim1: renamed from eth1
[ 220.799989][ T6187] netdevsim netdevsim0 netdevsim2: renamed from eth2
[ 220.838808][ T6187] netdevsim netdevsim0 netdevsim3: renamed from eth3
[ 220.948928][ T6187] 8021q: adding VLAN 0 to HW filter on device bond0
[ 220.963510][ T6187] 8021q: adding VLAN 0 to HW filter on device team0
[ 220.987565][ T12] bridge0: port 1(bridge_slave_0) entered blocking state
[ 220.987876][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 220.994408][ T1336] bridge0: port 2(bridge_slave_1) entered blocking state
[ 220.994645][ T1336] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 221.201558][ T6187] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 221.246886][ T6187] veth0_vlan: entered promiscuous mode
[ 221.252144][ T6187] veth1_vlan: entered promiscuous mode
[ 221.291699][ T6187] veth0_macvtap: entered promiscuous mode
[ 221.294842][ T6187] veth1_macvtap: entered promiscuous mode
[ 221.308375][ T261] block nbd0: Possible stuck request ffff888025115080: control (read@0,4096B). Runtime 120 seconds
[ 221.310635][ T6187] batman_adv: batadv0: Interface activated: batadv_slave_0
[ 221.318268][ T6187] batman_adv: batadv0: Interface activated: batadv_slave_1
[ 221.362946][ T1306] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[ 221.363147][ T1306] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[ 221.363294][ T1306] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[ 221.363557][ T1306] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[ 222.066206][ T61] Bluetooth: hci0: command 0x0406 tx timeout
[ 222.305965][ T5113] Bluetooth: hci2: command tx timeout
[ 224.395654][ T5113] Bluetooth: hci2: command tx timeout
[ 226.466242][ T5113] Bluetooth: hci2: command tx timeout
[ 251.385728][ T11] block nbd0: Possible stuck request ffff888025115080: control (read@0,4096B). Runtime 150 seconds
[ 254.546278][ T38] INFO: task syz-executor.0:6062 blocked for more than 143 seconds.
[ 254.546317][ T38] Not tainted syzkaller #0
[ 254.546338][ T38] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 254.546410][ T38] task:syz-executor.0 state:D stack:27800 pid:6062 tgid:6060 ppid:5932 task_flags:0x400140 flags:0x00080803
[ 254.546479][ T38] Call Trace:
[ 254.546488][ T38]
[ 254.546500][ T38] __schedule+0x1498/0x5140
[ 254.546553][ T38] ? sched_clock_cpu+0x74/0x440
[ 254.546574][ T38] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 254.546598][ T38] ? __pfx___schedule+0x10/0x10
[ 254.546610][ T38] ? rt_mutex_slowlock_block+0x2e9/0x680
[ 254.546629][ T38] rt_mutex_schedule+0x76/0xf0
[ 254.546643][ T38] rt_mutex_slowlock_block+0x508/0x680
[ 254.546660][ T38] ? rt_mutex_slowlock_block+0x2e9/0x680
[ 254.546672][ T38] rt_mutex_slowlock+0x2dc/0x710
[ 254.546684][ T38] ? rt_mutex_slowlock+0x1fd/0x710
[ 254.546695][ T38] ? __pfx_rt_mutex_slowlock+0x10/0x10
[ 254.546711][ T38] ? bdev_release+0x1af/0x660
[ 254.546733][ T38] ? bdev_release+0x1af/0x660
[ 254.546743][ T38] mutex_lock_nested+0x168/0x1d0
[ 254.546753][ T38] ? __pfx___fsnotify_parent+0x10/0x10
[ 254.546766][ T38] bdev_release+0x1af/0x660
[ 254.546781][ T38] ? __pfx_blkdev_release+0x10/0x10
[ 254.546794][ T38] blkdev_release+0x15/0x20
[ 254.546806][ T38] __fput+0x45e/0xa80
[ 254.546822][ T38] task_work_run+0x1d9/0x270
[ 254.546839][ T38] ? __pfx_task_work_run+0x10/0x10
[ 254.546857][ T38] get_signal+0x11c3/0x1310
[ 254.546879][ T38] arch_do_signal_or_restart+0xbc/0x830
[ 254.546896][ T38] ? __pfx_task_work_add+0x10/0x10
[ 254.546909][ T38] ? __pfx_arch_do_signal_or_restart+0x10/0x10
[ 254.546928][ T38] ? __fput_deferred+0x253/0x3e0
[ 254.546938][ T38] ? __pfx___fput_deferred+0x10/0x10
[ 254.546952][ T38] exit_to_user_mode_loop+0x86/0x480
[ 254.546965][ T38] ? rcu_is_watching+0x15/0xb0
[ 254.546980][ T38] do_syscall_64+0x2b7/0xf80
[ 254.546995][ T38] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 254.547005][ T38] ? trace_irq_disable+0x37/0x100
[ 254.547018][ T38] ? clear_bhb_loop+0x60/0xb0
[ 254.547031][ T38] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 254.547041][ T38] RIP: 0033:0x7f335192b0e9
[ 254.547054][ T38] RSP: 002b:00007f33510be0b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 254.547065][ T38] RAX: 0000000000000000 RBX: 00007f3351a5bf80 RCX: 00007f335192b0e9
[ 254.547073][ T38] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000005
[ 254.547082][ T38] RBP: 00007f33519a040f R08: 0000000000000000 R09: 0000000000000000
[ 254.547089][ T38] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 254.547094][ T38] R13: 000000000000000b R14: 00007f3351a5bf80 R15: 00007fff932ba428
[ 254.547110][ T38]
[ 254.547127][ T38]
[ 254.547127][ T38] Showing all locks held in the system:
[ 254.547136][ T38] 1 lock held by khungtaskd/38:
[ 254.547142][ T38] #0: ffffffff8dbc77c0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
[ 254.547199][ T38] 2 locks held by getty/5547:
[ 254.547205][ T38] #0: ffff8880358780a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
[ 254.547234][ T38] #1: ffffc90003e762e0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x462/0x13c0
[ 254.547259][ T38] 1 lock held by udevd/5917:
[ 254.547264][ T38] #0: ffff88802503e4c8 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xe0/0xcc0
[ 254.547290][ T38] 1 lock held by syz-executor.0/6062:
[ 254.547295][ T38] #0: ffff88802503e4c8 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_release+0x1af/0x660
[ 254.547318][ T38] 1 lock held by syz-executor.0/6178:
[ 254.547329][ T38] #0: ffff88802503e4c8 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xe0/0xcc0
[ 254.547352][ T38] 1 lock held by syz-executor.0/6207:
[ 254.547358][ T38] #0: ffff88802503e4c8 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xe0/0xcc0
[ 254.547380][ T38]
[ 254.547383][ T38] =============================================
[ 254.547383][ T38]
[ 254.547394][ T38] NMI backtrace for cpu 1
[ 254.547407][ T38] CPU: 1 UID: 0 PID: 38 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 254.547418][ T38] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 254.547423][ T38] Call Trace:
[ 254.547427][ T38]
[ 254.547431][ T38] dump_stack_lvl+0xe8/0x150
[ 254.547445][ T38] nmi_cpu_backtrace+0x274/0x2d0
[ 254.547457][ T38] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10
[ 254.547468][ T38] nmi_trigger_cpumask_backtrace+0x17a/0x300
[ 254.547480][ T38] sys_info+0x135/0x170
[ 254.547488][ T38] watchdog+0xf90/0xfe0
[ 254.547505][ T38] ? watchdog+0x209/0xfe0
[ 254.547522][ T38] kthread+0x726/0x8b0
[ 254.547536][ T38] ? __pfx_watchdog+0x10/0x10
[ 254.547549][ T38] ? __pfx_kthread+0x10/0x10
[ 254.547560][ T38] ? rt_spin_unlock+0x14f/0x200
[ 254.547572][ T38] ? rt_spin_unlock+0x160/0x200
[ 254.547582][ T38] ? __pfx_kthread+0x10/0x10
[ 254.547594][ T38] ret_from_fork+0x51b/0xa40
[ 254.547606][ T38] ? __pfx_ret_from_fork+0x10/0x10
[ 254.547616][ T38] ? __switch_to+0xc82/0x1410
[ 254.547632][ T38] ? __pfx_kthread+0x10/0x10
[ 254.547644][ T38] ret_from_fork_asm+0x1a/0x30
[ 254.547666][ T38]
[ 254.547669][ T38] Sending NMI from CPU 1 to CPUs 0:
[ 254.547712][ C0] NMI backtrace for cpu 0
[ 254.547730][ C0] CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 254.547747][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 254.547754][ C0] RIP: 0010:pv_native_safe_halt+0xf/0x20
[ 254.547774][ C0] Code: f8 4f 02 e9 43 c3 03 00 cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d 63 f3 1b 00 fb f4 cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90
[ 254.547786][ C0] RSP: 0018:ffffffff8d807dc0 EFLAGS: 00000242
[ 254.547799][ C0] RAX: 00000000000d009d RBX: ffffffff81981bfd RCX: 0000000080000001
[ 254.547810][ C0] RDX: 0000000000000001 RSI: ffffffff8d33b8d9 RDI: ffffffff8b85e980
[ 254.547820][ C0] RBP: ffffffff8d807eb0 R08: ffff8880b8833c5b R09: 1ffff1101710678b
[ 254.547830][ C0] R10: dffffc0000000000 R11: ffffed101710678c R12: ffffffff8f47e570
[ 254.547841][ C0] R13: 1ffffffff1b20678 R14: 0000000000000000 R15: 0000000000000000
[ 254.547850][ C0] FS: 0000000000000000(0000) GS:ffff8881265c9000(0000) knlGS:0000000000000000
[ 254.547862][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 254.547872][ C0] CR2: 000055efc5f88660 CR3: 000000000d9b4000 CR4: 00000000003526f0
[ 254.547885][ C0] Call Trace:
[ 254.547891][ C0]
[ 254.547896][ C0] default_idle+0x9/0x20
[ 254.547915][ C0] default_idle_call+0x72/0xb0
[ 254.547928][ C0] do_idle+0x1bd/0x500
[ 254.547947][ C0] ? lock_acquire+0x106/0x330
[ 254.547962][ C0] ? __pfx_do_idle+0x10/0x10
[ 254.547982][ C0] cpu_startup_entry+0x43/0x60
[ 254.547999][ C0] rest_init+0x2de/0x300
[ 254.548014][ C0] start_kernel+0x380/0x3d0
[ 254.548031][ C0] x86_64_start_reservations+0x24/0x30
[ 254.548050][ C0] x86_64_start_kernel+0x143/0x1c0
[ 254.548067][ C0] common_startup_64+0x13e/0x147
[ 254.548099][ C0]
[ 254.548691][ T38] Kernel panic - not syncing: hung_task: blocked tasks
[ 254.548703][ T38] CPU: 1 UID: 0 PID: 38 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 254.548714][ T38] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 254.548719][ T38] Call Trace:
[ 254.548723][ T38]
[ 254.548727][ T38] vpanic+0x1e0/0x670
[ 254.548742][ T38] panic+0xc5/0xd0
[ 254.548756][ T38] ? __pfx_panic+0x10/0x10
[ 254.548773][ T38] ? nmi_trigger_cpumask_backtrace+0x234/0x300
[ 254.548786][ T38] watchdog+0xfda/0xfe0
[ 254.548801][ T38] ? watchdog+0x209/0xfe0
[ 254.548818][ T38] kthread+0x726/0x8b0
[ 254.548831][ T38] ? __pfx_watchdog+0x10/0x10
[ 254.548844][ T38] ? __pfx_kthread+0x10/0x10
[ 254.548855][ T38] ? rt_spin_unlock+0x14f/0x200
[ 254.548867][ T38] ? rt_spin_unlock+0x160/0x200
[ 254.548877][ T38] ? __pfx_kthread+0x10/0x10
[ 254.548889][ T38] ret_from_fork+0x51b/0xa40
[ 254.548901][ T38] ? __pfx_ret_from_fork+0x10/0x10
[ 254.548910][ T38] ? __switch_to+0xc82/0x1410
[ 254.548926][ T38] ? __pfx_kthread+0x10/0x10
[ 254.548939][ T38] ret_from_fork_asm+0x1a/0x30
[ 254.548960][ T38]
[ 254.549447][ T38] Kernel Offset: disabled