Warning: Permanently added '10.128.1.247' (ED25519) to the list of known hosts.
2025/11/07 09:57:54 ignoring optional flag "type"="gce"
2025/11/07 09:57:55 parsed 1 programs
2025/11/07 09:57:57 executed programs: 0
[ 110.076900][ T5950] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k
[ 110.143035][ T5117] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1
[ 110.145382][ T5117] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9
[ 110.149088][ T5117] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9
[ 110.150161][ T5117] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4
[ 110.150914][ T5117] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2
[ 110.365427][ T5996] chnl_net:caif_netlink_parms(): no params data found
[ 110.592721][ T5996] bridge0: port 1(bridge_slave_0) entered blocking state
[ 110.592856][ T5996] bridge0: port 1(bridge_slave_0) entered disabled state
[ 110.592986][ T5996] bridge_slave_0: entered allmulticast mode
[ 110.594517][ T5996] bridge_slave_0: entered promiscuous mode
[ 110.599435][ T5996] bridge0: port 2(bridge_slave_1) entered blocking state
[ 110.599562][ T5996] bridge0: port 2(bridge_slave_1) entered disabled state
[ 110.599661][ T5996] bridge_slave_1: entered allmulticast mode
[ 110.601530][ T5996] bridge_slave_1: entered promiscuous mode
[ 110.755498][ T5996] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[ 110.758182][ T5996] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[ 110.894076][ T5996] team0: Port device team_slave_0 added
[ 110.897615][ T5996] team0: Port device team_slave_1 added
[ 111.023996][ T5996] batman_adv: batadv0: Adding interface: batadv_slave_0
[ 111.024013][ T5996] 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.
[ 111.024034][ T5996] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[ 111.026412][ T5996] batman_adv: batadv0: Adding interface: batadv_slave_1
[ 111.026424][ T5996] 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.
[ 111.026446][ T5996] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[ 111.207804][ T5996] hsr_slave_0: entered promiscuous mode
[ 111.208601][ T5996] hsr_slave_1: entered promiscuous mode
[ 112.211583][ T5117] Bluetooth: hci0: command tx timeout
[ 113.028772][ T5996] netdevsim netdevsim0 netdevsim0: renamed from eth0
[ 113.056146][ T5996] netdevsim netdevsim0 netdevsim1: renamed from eth1
[ 113.095299][ T5996] netdevsim netdevsim0 netdevsim2: renamed from eth2
[ 113.140862][ T5996] netdevsim netdevsim0 netdevsim3: renamed from eth3
[ 113.322380][ T5996] 8021q: adding VLAN 0 to HW filter on device bond0
[ 113.345062][ T5996] 8021q: adding VLAN 0 to HW filter on device team0
[ 113.356804][ T1009] bridge0: port 1(bridge_slave_0) entered blocking state
[ 113.357051][ T1009] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 113.370840][ T43] bridge0: port 2(bridge_slave_1) entered blocking state
[ 113.372333][ T43] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 113.725981][ T5996] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 113.794656][ T5996] veth0_vlan: entered promiscuous mode
[ 113.819740][ T5996] veth1_vlan: entered promiscuous mode
[ 113.865308][ T5996] veth0_macvtap: entered promiscuous mode
[ 113.878418][ T5996] veth1_macvtap: entered promiscuous mode
[ 113.917398][ T5996] batman_adv: batadv0: Interface activated: batadv_slave_0
[ 113.930129][ T5996] batman_adv: batadv0: Interface activated: batadv_slave_1
[ 113.945173][ T43] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[ 113.947989][ T43] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[ 113.948901][ T43] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[ 113.949129][ T43] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[ 114.301374][ T61] Bluetooth: hci0: command tx timeout
[ 114.332419][ T6086] nbd0: detected capacity change from 0 to 65538
[ 115.034367][ T5117] block nbd0: Receive control failed (result -104)
[ 116.371400][ T5117] Bluetooth: hci0: command tx timeout
[ 118.451418][ T5117] Bluetooth: hci0: command tx timeout
[ 132.940584][ T1320] ieee802154 phy0 wpan0: encryption failed: -22
[ 132.940680][ T1320] ieee802154 phy1 wpan1: encryption failed: -22
[ 144.491392][ T59] block nbd0: Possible stuck request ffff888024b50000: control (read@0,4096B). Runtime 30 seconds
2025/11/07 09:58:56 executed programs: 1
[ 170.196657][ T61] Bluetooth: hci1: unexpected cc 0x0c03 length: 249 > 1
[ 170.198986][ T61] Bluetooth: hci1: unexpected cc 0x1003 length: 249 > 9
[ 170.199745][ T61] Bluetooth: hci1: unexpected cc 0x1001 length: 249 > 9
[ 170.200818][ T61] Bluetooth: hci1: unexpected cc 0x0c23 length: 249 > 4
[ 170.212914][ T61] Bluetooth: hci1: unexpected cc 0x0c38 length: 249 > 2
[ 170.417371][ T6194] chnl_net:caif_netlink_parms(): no params data found
[ 170.643775][ T6194] bridge0: port 1(bridge_slave_0) entered blocking state
[ 170.643909][ T6194] bridge0: port 1(bridge_slave_0) entered disabled state
[ 170.644209][ T6194] bridge_slave_0: entered allmulticast mode
[ 170.645709][ T6194] bridge_slave_0: entered promiscuous mode
[ 170.647887][ T6194] bridge0: port 2(bridge_slave_1) entered blocking state
[ 170.647970][ T6194] bridge0: port 2(bridge_slave_1) entered disabled state
[ 170.648072][ T6194] bridge_slave_1: entered allmulticast mode
[ 170.649531][ T6194] bridge_slave_1: entered promiscuous mode
[ 170.795656][ T6194] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[ 170.798651][ T6194] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[ 170.954025][ T6194] team0: Port device team_slave_0 added
[ 170.956075][ T6194] team0: Port device team_slave_1 added
[ 171.103070][ T6194] batman_adv: batadv0: Adding interface: batadv_slave_0
[ 171.103087][ T6194] 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.
[ 171.103104][ T6194] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[ 171.104424][ T6194] batman_adv: batadv0: Adding interface: batadv_slave_1
[ 171.104436][ T6194] 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.
[ 171.104454][ T6194] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[ 171.277656][ T6194] hsr_slave_0: entered promiscuous mode
[ 171.278438][ T6194] hsr_slave_1: entered promiscuous mode
[ 171.279118][ T6194] debugfs: 'hsr0' already exists in 'hsr'
[ 171.279189][ T6194] Cannot create hsr debugfs directory
[ 172.026823][ T6194] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 172.243906][ T6194] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 172.291419][ T61] Bluetooth: hci1: command tx timeout
[ 172.454677][ T6194] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 172.686938][ T6194] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 172.887678][ T6194] netdevsim netdevsim0 netdevsim0: renamed from eth0
[ 172.914570][ T6194] netdevsim netdevsim0 netdevsim1: renamed from eth1
[ 172.955046][ T6194] netdevsim netdevsim0 netdevsim2: renamed from eth2
[ 172.994364][ T6194] netdevsim netdevsim0 netdevsim3: renamed from eth3
[ 173.112077][ T6194] 8021q: adding VLAN 0 to HW filter on device bond0
[ 173.132746][ T6194] 8021q: adding VLAN 0 to HW filter on device team0
[ 173.138197][ T58] bridge0: port 1(bridge_slave_0) entered blocking state
[ 173.138416][ T58] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 173.155090][ T58] bridge0: port 2(bridge_slave_1) entered blocking state
[ 173.157448][ T58] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 173.346605][ T6194] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 173.390774][ T6194] veth0_vlan: entered promiscuous mode
[ 173.403235][ T6194] veth1_vlan: entered promiscuous mode
[ 173.432020][ T6194] veth0_macvtap: entered promiscuous mode
[ 173.435587][ T6194] veth1_macvtap: entered promiscuous mode
[ 173.453223][ T6194] batman_adv: batadv0: Interface activated: batadv_slave_0
[ 173.460496][ T6194] batman_adv: batadv0: Interface activated: batadv_slave_1
[ 173.480632][ T43] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[ 173.486049][ T43] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[ 173.487572][ T43] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[ 173.488263][ T43] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[ 174.381466][ T61] Bluetooth: hci1: command tx timeout
[ 174.592206][ T32] block nbd0: Possible stuck request ffff888024b50000: control (read@0,4096B). Runtime 60 seconds
[ 176.451407][ T61] Bluetooth: hci1: command tx timeout
[ 176.676214][ T5168] udevd[5168]: worker [5998] /devices/virtual/block/nbd0 is taking a long time
[ 178.531872][ T61] Bluetooth: hci1: command tx timeout
[ 194.376216][ T1320] ieee802154 phy0 wpan0: encryption failed: -22
[ 194.376307][ T1320] ieee802154 phy1 wpan1: encryption failed: -22
[ 204.671312][ T32] block nbd0: Possible stuck request ffff888024b50000: control (read@0,4096B). Runtime 90 seconds
2025/11/07 09:59:56 executed programs: 2
[ 229.721733][ T5117] Bluetooth: hci2: unexpected cc 0x0c03 length: 249 > 1
[ 229.723484][ T5117] Bluetooth: hci2: unexpected cc 0x1003 length: 249 > 9
[ 229.725122][ T5117] Bluetooth: hci2: unexpected cc 0x1001 length: 249 > 9
[ 229.728625][ T5117] Bluetooth: hci2: unexpected cc 0x0c23 length: 249 > 4
[ 229.729399][ T5117] Bluetooth: hci2: unexpected cc 0x0c38 length: 249 > 2
[ 229.947019][ T6223] chnl_net:caif_netlink_parms(): no params data found
[ 230.223145][ T6223] bridge0: port 1(bridge_slave_0) entered blocking state
[ 230.223356][ T6223] bridge0: port 1(bridge_slave_0) entered disabled state
[ 230.223530][ T6223] bridge_slave_0: entered allmulticast mode
[ 230.225971][ T6223] bridge_slave_0: entered promiscuous mode
[ 230.228202][ T6223] bridge0: port 2(bridge_slave_1) entered blocking state
[ 230.228325][ T6223] bridge0: port 2(bridge_slave_1) entered disabled state
[ 230.228430][ T6223] bridge_slave_1: entered allmulticast mode
[ 230.229915][ T6223] bridge_slave_1: entered promiscuous mode
[ 230.365325][ T6223] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[ 230.368244][ T6223] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[ 230.503874][ T6223] team0: Port device team_slave_0 added
[ 230.506202][ T6223] team0: Port device team_slave_1 added
[ 230.663031][ T6223] batman_adv: batadv0: Adding interface: batadv_slave_0
[ 230.663046][ T6223] 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.
[ 230.663069][ T6223] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[ 230.664455][ T6223] batman_adv: batadv0: Adding interface: batadv_slave_1
[ 230.664467][ T6223] 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.
[ 230.664490][ T6223] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[ 230.827534][ T6223] hsr_slave_0: entered promiscuous mode
[ 230.828330][ T6223] hsr_slave_1: entered promiscuous mode
[ 230.828900][ T6223] debugfs: 'hsr0' already exists in 'hsr'
[ 230.828918][ T6223] Cannot create hsr debugfs directory
[ 231.505582][ T6223] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 231.723652][ T6223] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 231.811521][ T5117] Bluetooth: hci2: command tx timeout
[ 231.934657][ T6223] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 232.157989][ T6223] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 232.291280][ T5117] Bluetooth: hci0: command 0x0406 tx timeout
[ 232.392023][ T6223] netdevsim netdevsim0 netdevsim0: renamed from eth0
[ 232.434941][ T6223] netdevsim netdevsim0 netdevsim1: renamed from eth1
[ 232.456640][ T6223] netdevsim netdevsim0 netdevsim2: renamed from eth2
[ 232.496256][ T6223] netdevsim netdevsim0 netdevsim3: renamed from eth3
[ 232.616548][ T6223] 8021q: adding VLAN 0 to HW filter on device bond0
[ 232.632018][ T6223] 8021q: adding VLAN 0 to HW filter on device team0
[ 232.645532][ T43] bridge0: port 1(bridge_slave_0) entered blocking state
[ 232.645756][ T43] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 232.663924][ T43] bridge0: port 2(bridge_slave_1) entered blocking state
[ 232.664121][ T43] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 232.896296][ T6223] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 232.947394][ T6223] veth0_vlan: entered promiscuous mode
[ 232.957813][ T6223] veth1_vlan: entered promiscuous mode
[ 232.985649][ T6223] veth0_macvtap: entered promiscuous mode
[ 232.988994][ T6223] veth1_macvtap: entered promiscuous mode
[ 233.010409][ T6223] batman_adv: batadv0: Interface activated: batadv_slave_0
[ 233.026249][ T6223] batman_adv: batadv0: Interface activated: batadv_slave_1
[ 233.035607][ T13] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[ 233.038399][ T13] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[ 233.038629][ T13] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[ 233.038806][ T13] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[ 233.899191][ T61] Bluetooth: hci2: command tx timeout
[ 234.731476][ T59] block nbd0: Possible stuck request ffff888024b50000: control (read@0,4096B). Runtime 120 seconds
[ 235.972410][ T61] Bluetooth: hci2: command tx timeout
[ 238.051372][ T61] Bluetooth: hci2: command tx timeout
[ 255.814815][ T1320] ieee802154 phy0 wpan0: encryption failed: -22
[ 255.814886][ T1320] ieee802154 phy1 wpan1: encryption failed: -22
[ 263.492771][ T38] INFO: task syz-executor.0:6082 blocked for more than 143 seconds.
[ 263.492811][ T38] Not tainted syzkaller #0
[ 263.492821][ T38] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 263.492830][ T38] task:syz-executor.0 state:D stack:27768 pid:6082 tgid:6080 ppid:5996 task_flags:0x400140 flags:0x00080003
[ 263.492900][ T38] Call Trace:
[ 263.492909][ T38]
[ 263.492919][ T38] __schedule+0x16f3/0x4c20
[ 263.492957][ T38] ? sched_clock+0x3f/0x60
[ 263.492973][ T38] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 263.492998][ T38] ? __pfx___schedule+0x10/0x10
[ 263.493024][ T38] rt_mutex_schedule+0x77/0xf0
[ 263.493035][ T38] rt_mutex_slowlock_block+0x5ba/0x6d0
[ 263.493055][ T38] ? rt_mutex_slowlock_block+0x351/0x6d0
[ 263.493068][ T38] rt_mutex_slowlock+0x2b1/0x6e0
[ 263.493081][ T38] ? rt_mutex_slowlock+0x1c9/0x6e0
[ 263.493093][ T38] ? __pfx_rt_mutex_slowlock+0x10/0x10
[ 263.493111][ T38] ? bdev_release+0x1af/0x660
[ 263.493124][ T38] ? __fsnotify_parent+0x242/0x540
[ 263.493142][ T38] ? bdev_release+0x1af/0x660
[ 263.493150][ T38] mutex_lock_nested+0x16a/0x1d0
[ 263.493161][ T38] ? __pfx___fsnotify_parent+0x10/0x10
[ 263.493178][ T38] bdev_release+0x1af/0x660
[ 263.493192][ T38] ? __pfx_blkdev_release+0x10/0x10
[ 263.493202][ T38] blkdev_release+0x15/0x20
[ 263.493212][ T38] __fput+0x45b/0xa80
[ 263.493230][ T38] task_work_run+0x1d4/0x260
[ 263.493242][ T38] ? __pfx_task_work_run+0x10/0x10
[ 263.493259][ T38] get_signal+0x11c4/0x1310
[ 263.493284][ T38] arch_do_signal_or_restart+0xa0/0x790
[ 263.493297][ T38] ? __pfx_smack_file_ioctl+0x10/0x10
[ 263.493313][ T38] ? __pfx_arch_do_signal_or_restart+0x10/0x10
[ 263.493323][ T38] ? __pfx_blkdev_ioctl+0x10/0x10
[ 263.493342][ T38] ? exit_to_user_mode_loop+0x40/0x130
[ 263.493359][ T38] exit_to_user_mode_loop+0x72/0x130
[ 263.493374][ T38] do_syscall_64+0x2bd/0xfa0
[ 263.493388][ T38] ? lockdep_hardirqs_on+0x9c/0x150
[ 263.493402][ T38] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 263.493412][ T38] ? clear_bhb_loop+0x60/0xb0
[ 263.493425][ T38] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 263.493436][ T38] RIP: 0033:0x7f1c1c12cae9
[ 263.493451][ T38] RSP: 002b:00007f1c1b4ae0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 263.493462][ T38] RAX: 0000000000000000 RBX: 00007f1c1c24bf80 RCX: 00007f1c1c12cae9
[ 263.493470][ T38] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000003
[ 263.493476][ T38] RBP: 00007f1c1c17847a R08: 0000000000000000 R09: 0000000000000000
[ 263.493483][ T38] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 263.493489][ T38] R13: 000000000000000b R14: 00007f1c1c24bf80 R15: 00007ffe0a87bb48
[ 263.493506][ T38]
[ 263.493522][ T38]
[ 263.493522][ T38] Showing all locks held in the system:
[ 263.493532][ T38] 1 lock held by khungtaskd/38:
[ 263.493538][ T38] #0: ffffffff8d5aa840 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
[ 263.493589][ T38] 2 locks held by getty/5559:
[ 263.493595][ T38] #0: ffff88823bf3e8a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
[ 263.493624][ T38] #1: ffffc900041832e0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x444/0x1400
[ 263.493654][ T38] 1 lock held by udevd/5998:
[ 263.493660][ T38] #0: ffff888024aa64c8 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xe0/0xcc0
[ 263.493689][ T38] 1 lock held by syz-executor.0/6082:
[ 263.493694][ T38] #0: ffff888024aa64c8 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_release+0x1af/0x660
[ 263.493716][ T38] 1 lock held by syz-executor.0/6214:
[ 263.493722][ T38] #0: ffff888024aa64c8 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xe0/0xcc0
[ 263.493756][ T38] 1 lock held by syz-executor.0/6242:
[ 263.493761][ T38] #0: ffff888024aa64c8 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xe0/0xcc0
[ 263.493788][ T38]
[ 263.493791][ T38] =============================================
[ 263.493791][ T38]
[ 263.493797][ T38] NMI backtrace for cpu 0
[ 263.493812][ T38] CPU: 0 UID: 0 PID: 38 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 263.493824][ T38] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
[ 263.493829][ T38] Call Trace:
[ 263.493834][ T38]
[ 263.493838][ T38] dump_stack_lvl+0x189/0x250
[ 263.493856][ T38] ? __pfx_dump_stack_lvl+0x10/0x10
[ 263.493871][ T38] ? __pfx__printk+0x10/0x10
[ 263.493889][ T38] nmi_cpu_backtrace+0x39e/0x3d0
[ 263.493902][ T38] ? __pfx_nmi_cpu_backtrace+0x10/0x10
[ 263.493915][ T38] ? __pfx__printk+0x10/0x10
[ 263.493929][ T38] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10
[ 263.493941][ T38] nmi_trigger_cpumask_backtrace+0x17a/0x300
[ 263.493953][ T38] watchdog+0xf60/0xfa0
[ 263.493971][ T38] ? watchdog+0x1e2/0xfa0
[ 263.493993][ T38] kthread+0x711/0x8a0
[ 263.494010][ T38] ? __pfx_watchdog+0x10/0x10
[ 263.494023][ T38] ? __pfx_kthread+0x10/0x10
[ 263.494036][ T38] ? rt_spin_unlock+0x150/0x200
[ 263.494049][ T38] ? rt_spin_unlock+0x161/0x200
[ 263.494059][ T38] ? __pfx_kthread+0x10/0x10
[ 263.494075][ T38] ret_from_fork+0x4bc/0x870
[ 263.494088][ T38] ? __pfx_ret_from_fork+0x10/0x10
[ 263.494103][ T38] ? __switch_to_asm+0x39/0x70
[ 263.494112][ T38] ? __switch_to_asm+0x33/0x70
[ 263.494121][ T38] ? __pfx_kthread+0x10/0x10
[ 263.494136][ T38] ret_from_fork_asm+0x1a/0x30
[ 263.494155][ T38]
[ 263.494158][ T38] Sending NMI from CPU 0 to CPUs 1:
[ 263.494199][ C1] NMI backtrace for cpu 1
[ 263.494212][ C1] CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 263.494230][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
[ 263.494238][ C1] RIP: 0010:pv_native_safe_halt+0x13/0x20
[ 263.494260][ C1] Code: cc cc cc cc 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 03 c8 27 00 f3 0f 1e fa fb f4 cc cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90
[ 263.494273][ C1] RSP: 0018:ffffc900001d7de0 EFLAGS: 000002c2
[ 263.494286][ C1] RAX: 110a0d9ecfc65000 RBX: ffffffff81954cf7 RCX: 110a0d9ecfc65000
[ 263.494298][ C1] RDX: 0000000000000001 RSI: ffffffff8cd8de17 RDI: ffffffff8b3ddd60
[ 263.494308][ C1] RBP: ffffc900001d7f10 R08: ffff8880b89334db R09: 1ffff1101712669b
[ 263.494317][ C1] R10: dffffc0000000000 R11: ffffed101712669c R12: ffffffff8ed63670
[ 263.494329][ C1] R13: 0000000000000001 R14: 0000000000000001 R15: 1ffff110036deb40
[ 263.494340][ C1] FS: 0000000000000000(0000) GS:ffff888126ef9000(0000) knlGS:0000000000000000
[ 263.494352][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 263.494363][ C1] CR2: 00005570d0612168 CR3: 000000003616e000 CR4: 00000000003526f0
[ 263.494378][ C1] Call Trace:
[ 263.494385][ C1]
[ 263.494390][ C1] default_idle+0x13/0x20
[ 263.494405][ C1] default_idle_call+0x73/0xb0
[ 263.494419][ C1] do_idle+0x1e7/0x510
[ 263.494435][ C1] ? asm_sysvec_call_function_single+0x1a/0x20
[ 263.494452][ C1] ? lockdep_hardirqs_on+0x9c/0x150
[ 263.494471][ C1] ? __pfx_do_idle+0x10/0x10
[ 263.494490][ C1] ? do_idle+0x4ed/0x510
[ 263.494505][ C1] cpu_startup_entry+0x44/0x60
[ 263.494520][ C1] start_secondary+0x101/0x110
[ 263.494536][ C1] common_startup_64+0x13e/0x147
[ 263.494565][ C1]
[ 264.811320][ T59] block nbd0: Possible stuck request ffff888024b50000: control (read@0,4096B). Runtime 150 seconds