Warning: Permanently added '10.128.1.183' (ED25519) to the list of known hosts. 2025/11/07 17:57:41 ignoring optional flag "type"="gce" 2025/11/07 17:57:41 parsed 1 programs 2025/11/07 17:57:41 executed programs: 0 [ 105.423662][ T5119] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 105.425964][ T5119] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 105.427674][ T5119] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 105.432385][ T5119] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 105.433211][ T5119] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 105.774367][ T5966] chnl_net:caif_netlink_parms(): no params data found [ 106.149146][ T5966] bridge0: port 1(bridge_slave_0) entered blocking state [ 106.149363][ T5966] bridge0: port 1(bridge_slave_0) entered disabled state [ 106.149515][ T5966] bridge_slave_0: entered allmulticast mode [ 106.152052][ T5966] bridge_slave_0: entered promiscuous mode [ 106.155393][ T5966] bridge0: port 2(bridge_slave_1) entered blocking state [ 106.155581][ T5966] bridge0: port 2(bridge_slave_1) entered disabled state [ 106.155722][ T5966] bridge_slave_1: entered allmulticast mode [ 106.206746][ T5966] bridge_slave_1: entered promiscuous mode [ 106.440921][ T5966] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 106.443586][ T5966] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 106.589770][ T5966] team0: Port device team_slave_0 added [ 106.591852][ T5966] team0: Port device team_slave_1 added [ 106.878694][ T5966] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 106.878709][ T5966] 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. [ 106.878731][ T5966] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 106.880141][ T5966] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 106.880153][ T5966] 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. [ 106.880175][ T5966] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 107.063079][ T5966] hsr_slave_0: entered promiscuous mode [ 107.063841][ T5966] hsr_slave_1: entered promiscuous mode [ 107.517117][ T61] Bluetooth: hci0: command tx timeout [ 108.565444][ T5966] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 108.604679][ T5966] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 108.641512][ T5966] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 108.683350][ T5966] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 108.842874][ T5966] 8021q: adding VLAN 0 to HW filter on device bond0 [ 108.868922][ T5966] 8021q: adding VLAN 0 to HW filter on device team0 [ 108.889958][ T1433] bridge0: port 1(bridge_slave_0) entered blocking state [ 108.890237][ T1433] bridge0: port 1(bridge_slave_0) entered forwarding state [ 108.905165][ T1433] bridge0: port 2(bridge_slave_1) entered blocking state [ 108.905389][ T1433] bridge0: port 2(bridge_slave_1) entered forwarding state [ 109.232426][ T5966] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 109.286158][ T5966] veth0_vlan: entered promiscuous mode [ 109.299584][ T5966] veth1_vlan: entered promiscuous mode [ 109.355922][ T5966] veth0_macvtap: entered promiscuous mode [ 109.368537][ T5966] veth1_macvtap: entered promiscuous mode [ 109.396691][ T5966] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 109.424626][ T5966] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 109.436839][ T189] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 109.440615][ T189] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 109.442427][ T189] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 109.443584][ T189] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 109.597675][ T61] Bluetooth: hci0: command tx timeout [ 109.770063][ T6067] nbd0: detected capacity change from 0 to 258 [ 110.482701][ T61] block nbd0: Receive control failed (result -104) [ 111.677214][ T61] Bluetooth: hci0: command tx timeout [ 113.757278][ T61] Bluetooth: hci0: command tx timeout [ 132.882443][ T1318] ieee802154 phy0 wpan0: encryption failed: -22 [ 132.882547][ T1318] ieee802154 phy1 wpan1: encryption failed: -22 [ 139.957449][ T59] block nbd0: Possible stuck request ffff888024780000: control (read@0,4096B). Runtime 30 seconds 2025/11/07 17:58:41 executed programs: 1 [ 165.695132][ T5119] Bluetooth: hci1: unexpected cc 0x0c03 length: 249 > 1 [ 165.698720][ T5119] Bluetooth: hci1: unexpected cc 0x1003 length: 249 > 9 [ 165.699853][ T5119] Bluetooth: hci1: unexpected cc 0x1001 length: 249 > 9 [ 165.701523][ T5119] Bluetooth: hci1: unexpected cc 0x0c23 length: 249 > 4 [ 165.702219][ T5119] Bluetooth: hci1: unexpected cc 0x0c38 length: 249 > 2 [ 165.931479][ T6190] chnl_net:caif_netlink_parms(): no params data found [ 166.199690][ T6190] bridge0: port 1(bridge_slave_0) entered blocking state [ 166.199823][ T6190] bridge0: port 1(bridge_slave_0) entered disabled state [ 166.199942][ T6190] bridge_slave_0: entered allmulticast mode [ 166.201420][ T6190] bridge_slave_0: entered promiscuous mode [ 166.204632][ T6190] bridge0: port 2(bridge_slave_1) entered blocking state [ 166.204751][ T6190] bridge0: port 2(bridge_slave_1) entered disabled state [ 166.205018][ T6190] bridge_slave_1: entered allmulticast mode [ 166.206460][ T6190] bridge_slave_1: entered promiscuous mode [ 166.391532][ T6190] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 166.394149][ T6190] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 166.550070][ T6190] team0: Port device team_slave_0 added [ 166.552362][ T6190] team0: Port device team_slave_1 added [ 166.708842][ T6190] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 166.708859][ T6190] 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. [ 166.708877][ T6190] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 166.710274][ T6190] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 166.710286][ T6190] 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. [ 166.710306][ T6190] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 167.023171][ T6190] hsr_slave_0: entered promiscuous mode [ 167.025313][ T6190] hsr_slave_1: entered promiscuous mode [ 167.025946][ T6190] debugfs: 'hsr0' already exists in 'hsr' [ 167.026020][ T6190] Cannot create hsr debugfs directory [ 167.431875][ T6190] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 167.629206][ T6190] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 167.757186][ T61] Bluetooth: hci1: command tx timeout [ 167.859548][ T6190] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 168.072913][ T6190] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 168.272435][ T6190] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 168.310349][ T6190] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 168.330396][ T6190] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 168.370416][ T6190] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 168.480755][ T6190] 8021q: adding VLAN 0 to HW filter on device bond0 [ 168.496176][ T6190] 8021q: adding VLAN 0 to HW filter on device team0 [ 168.507744][ T1480] bridge0: port 1(bridge_slave_0) entered blocking state [ 168.507953][ T1480] bridge0: port 1(bridge_slave_0) entered forwarding state [ 168.514358][ T44] bridge0: port 2(bridge_slave_1) entered blocking state [ 168.514443][ T44] bridge0: port 2(bridge_slave_1) entered forwarding state [ 168.709959][ T6190] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 168.747905][ T6190] veth0_vlan: entered promiscuous mode [ 168.753076][ T6190] veth1_vlan: entered promiscuous mode [ 168.780579][ T6190] veth0_macvtap: entered promiscuous mode [ 168.783671][ T6190] veth1_macvtap: entered promiscuous mode [ 168.808256][ T6190] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 168.816618][ T6190] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 168.832121][ T189] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 168.832373][ T189] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 168.832410][ T189] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 168.832442][ T189] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 169.838175][ T61] Bluetooth: hci1: command tx timeout [ 170.037221][ T65] block nbd0: Possible stuck request ffff888024780000: control (read@0,4096B). Runtime 60 seconds [ 171.917279][ T61] Bluetooth: hci1: command tx timeout [ 172.050922][ T5170] udevd[5170]: worker [6014] /devices/virtual/block/nbd0 is taking a long time [ 173.998466][ T61] Bluetooth: hci1: command tx timeout [ 194.320345][ T1318] ieee802154 phy0 wpan0: encryption failed: -22 [ 194.320436][ T1318] ieee802154 phy1 wpan1: encryption failed: -22 [ 200.117248][ T65] block nbd0: Possible stuck request ffff888024780000: control (read@0,4096B). Runtime 90 seconds 2025/11/07 17:59:40 executed programs: 2 [ 225.096192][ T5119] Bluetooth: hci2: unexpected cc 0x0c03 length: 249 > 1 [ 225.100778][ T5119] Bluetooth: hci2: unexpected cc 0x1003 length: 249 > 9 [ 225.105952][ T5119] Bluetooth: hci2: unexpected cc 0x1001 length: 249 > 9 [ 225.107674][ T5119] Bluetooth: hci2: unexpected cc 0x0c23 length: 249 > 4 [ 225.108801][ T5119] Bluetooth: hci2: unexpected cc 0x0c38 length: 249 > 2 [ 225.310920][ T6220] chnl_net:caif_netlink_parms(): no params data found [ 225.569701][ T6220] bridge0: port 1(bridge_slave_0) entered blocking state [ 225.569835][ T6220] bridge0: port 1(bridge_slave_0) entered disabled state [ 225.569970][ T6220] bridge_slave_0: entered allmulticast mode [ 225.571439][ T6220] bridge_slave_0: entered promiscuous mode [ 225.574134][ T6220] bridge0: port 2(bridge_slave_1) entered blocking state [ 225.574255][ T6220] bridge0: port 2(bridge_slave_1) entered disabled state [ 225.574559][ T6220] bridge_slave_1: entered allmulticast mode [ 225.576010][ T6220] bridge_slave_1: entered promiscuous mode [ 225.751864][ T6220] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 225.754869][ T6220] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 225.909851][ T6220] team0: Port device team_slave_0 added [ 225.912012][ T6220] team0: Port device team_slave_1 added [ 226.068950][ T6220] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 226.068965][ T6220] 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. [ 226.068984][ T6220] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 226.071798][ T6220] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 226.071807][ T6220] 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. [ 226.071821][ T6220] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 226.283368][ T6220] hsr_slave_0: entered promiscuous mode [ 226.284196][ T6220] hsr_slave_1: entered promiscuous mode [ 226.284725][ T6220] debugfs: 'hsr0' already exists in 'hsr' [ 226.284747][ T6220] Cannot create hsr debugfs directory [ 226.871593][ T6220] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 227.070089][ T6220] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 227.117180][ T5119] Bluetooth: hci2: command tx timeout [ 227.279430][ T6220] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 227.492473][ T6220] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 227.683288][ T6220] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 227.720264][ T6220] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 227.740528][ T6220] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 227.780354][ T6220] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 227.891079][ T6220] 8021q: adding VLAN 0 to HW filter on device bond0 [ 227.910258][ T6220] 8021q: adding VLAN 0 to HW filter on device team0 [ 227.915337][ T44] bridge0: port 1(bridge_slave_0) entered blocking state [ 227.915543][ T44] bridge0: port 1(bridge_slave_0) entered forwarding state [ 227.926343][ T44] bridge0: port 2(bridge_slave_1) entered blocking state [ 227.926546][ T44] bridge0: port 2(bridge_slave_1) entered forwarding state [ 228.111182][ T6220] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 228.150087][ T6220] veth0_vlan: entered promiscuous mode [ 228.155286][ T6220] veth1_vlan: entered promiscuous mode [ 228.189082][ T6220] veth0_macvtap: entered promiscuous mode [ 228.192589][ T6220] veth1_macvtap: entered promiscuous mode [ 228.206752][ T6220] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 228.212306][ T6220] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 228.234722][ T189] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 228.235087][ T189] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 228.235298][ T189] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 228.235975][ T189] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 229.197256][ T5119] Bluetooth: hci2: command tx timeout [ 230.197141][ T59] block nbd0: Possible stuck request ffff888024780000: control (read@0,4096B). Runtime 120 seconds [ 231.277087][ T61] Bluetooth: hci2: command tx timeout [ 232.238655][ T61] Bluetooth: hci0: command 0x0406 tx timeout [ 233.358502][ T5119] Bluetooth: hci2: command tx timeout [ 255.763385][ T1318] ieee802154 phy0 wpan0: encryption failed: -22 [ 255.763456][ T1318] ieee802154 phy1 wpan1: encryption failed: -22 [ 260.277298][ T6241] block nbd0: Possible stuck request ffff888024780000: control (read@0,4096B). Runtime 150 seconds [ 262.797365][ T38] INFO: task syz-executor.0:6067 blocked for more than 143 seconds. [ 262.797397][ T38] Not tainted syzkaller #0 [ 262.797403][ T38] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 262.797408][ T38] task:syz-executor.0 state:D stack:27320 pid:6067 tgid:6066 ppid:5966 task_flags:0x400140 flags:0x00080003 [ 262.797529][ T38] Call Trace: [ 262.797537][ T38] [ 262.797547][ T38] __schedule+0x16f3/0x4c20 [ 262.797588][ T38] ? sched_clock+0x3f/0x60 [ 262.797601][ T38] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 262.797620][ T38] ? __pfx___schedule+0x10/0x10 [ 262.797646][ T38] rt_mutex_schedule+0x77/0xf0 [ 262.797657][ T38] rt_mutex_slowlock_block+0x5ba/0x6d0 [ 262.797677][ T38] ? rt_mutex_slowlock_block+0x351/0x6d0 [ 262.797690][ T38] rt_mutex_slowlock+0x2b1/0x6e0 [ 262.797703][ T38] ? rt_mutex_slowlock+0x1c9/0x6e0 [ 262.797715][ T38] ? __pfx_rt_mutex_slowlock+0x10/0x10 [ 262.797732][ T38] ? bdev_release+0x1af/0x660 [ 262.797746][ T38] ? __fsnotify_parent+0x242/0x540 [ 262.797764][ T38] ? bdev_release+0x1af/0x660 [ 262.797771][ T38] mutex_lock_nested+0x16a/0x1d0 [ 262.797783][ T38] ? __pfx___fsnotify_parent+0x10/0x10 [ 262.797799][ T38] bdev_release+0x1af/0x660 [ 262.797812][ T38] ? __pfx_blkdev_release+0x10/0x10 [ 262.797823][ T38] blkdev_release+0x15/0x20 [ 262.797834][ T38] __fput+0x45b/0xa80 [ 262.797859][ T38] task_work_run+0x1d4/0x260 [ 262.797873][ T38] ? __pfx_task_work_run+0x10/0x10 [ 262.797885][ T38] ? exit_to_user_mode_loop+0x40/0x130 [ 262.797902][ T38] exit_to_user_mode_loop+0xe9/0x130 [ 262.797916][ T38] do_syscall_64+0x2bd/0xfa0 [ 262.797931][ T38] ? lockdep_hardirqs_on+0x9c/0x150 [ 262.797945][ T38] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 262.797956][ T38] ? clear_bhb_loop+0x60/0xb0 [ 262.797969][ T38] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 262.797979][ T38] RIP: 0033:0x7f838b3cbdb9 [ 262.797994][ T38] RSP: 002b:00007f838a74e0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 262.798005][ T38] RAX: 0000000000000000 RBX: 00007f838b4ebf80 RCX: 00007f838b3cbdb9 [ 262.798012][ T38] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000003 [ 262.798019][ T38] RBP: 00007f838b428ad0 R08: 0000000000000000 R09: 0000000000000000 [ 262.798025][ T38] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 262.798031][ T38] R13: 000000000000000b R14: 00007f838b4ebf80 R15: 00007ffd0489a128 [ 262.798048][ T38] [ 262.798069][ T38] [ 262.798069][ T38] Showing all locks held in the system: [ 262.798081][ T38] 1 lock held by khungtaskd/38: [ 262.798087][ T38] #0: ffffffff8d5aa840 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180 [ 262.798155][ T38] 2 locks held by getty/5560: [ 262.798161][ T38] #0: ffff88823bf2a8a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 262.798191][ T38] #1: ffffc90003e762e0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x444/0x1400 [ 262.798223][ T38] 1 lock held by udevd/6014: [ 262.798229][ T38] #0: ffff888143b234c8 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xe0/0xcc0 [ 262.798258][ T38] 1 lock held by syz-executor.0/6067: [ 262.798263][ T38] #0: ffff888143b234c8 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_release+0x1af/0x660 [ 262.798286][ T38] 1 lock held by syz-executor.0/6210: [ 262.798292][ T38] #0: ffff888143b234c8 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xe0/0xcc0 [ 262.798319][ T38] 1 lock held by syz-executor.0/6239: [ 262.798325][ T38] #0: ffff888143b234c8 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xe0/0xcc0 [ 262.798351][ T38] [ 262.798354][ T38] ============================================= [ 262.798354][ T38] [ 262.798360][ T38] NMI backtrace for cpu 0 [ 262.798378][ T38] CPU: 0 UID: 0 PID: 38 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT_{RT,(full)} [ 262.798392][ T38] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 [ 262.798398][ T38] Call Trace: [ 262.798403][ T38] [ 262.798407][ T38] dump_stack_lvl+0x189/0x250 [ 262.798425][ T38] ? __pfx_dump_stack_lvl+0x10/0x10 [ 262.798439][ T38] ? __pfx__printk+0x10/0x10 [ 262.798457][ T38] nmi_cpu_backtrace+0x39e/0x3d0 [ 262.798471][ T38] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 262.798487][ T38] ? __pfx__printk+0x10/0x10 [ 262.798501][ T38] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 262.798514][ T38] nmi_trigger_cpumask_backtrace+0x17a/0x300 [ 262.798526][ T38] watchdog+0xf60/0xfa0 [ 262.798544][ T38] ? watchdog+0x1e2/0xfa0 [ 262.798560][ T38] kthread+0x711/0x8a0 [ 262.798577][ T38] ? __pfx_watchdog+0x10/0x10 [ 262.798590][ T38] ? __pfx_kthread+0x10/0x10 [ 262.798602][ T38] ? rt_spin_unlock+0x150/0x200 [ 262.798615][ T38] ? rt_spin_unlock+0x161/0x200 [ 262.798625][ T38] ? __pfx_kthread+0x10/0x10 [ 262.798639][ T38] ret_from_fork+0x4bc/0x870 [ 262.798653][ T38] ? __pfx_ret_from_fork+0x10/0x10 [ 262.798667][ T38] ? __switch_to_asm+0x39/0x70 [ 262.798677][ T38] ? __switch_to_asm+0x33/0x70 [ 262.798685][ T38] ? __pfx_kthread+0x10/0x10 [ 262.798700][ T38] ret_from_fork_asm+0x1a/0x30 [ 262.798718][ T38] [ 262.798722][ T38] Sending NMI from CPU 0 to CPUs 1: [ 262.798767][ C1] NMI backtrace for cpu 1 [ 262.798780][ C1] CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted syzkaller #0 PREEMPT_{RT,(full)} [ 262.798797][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 [ 262.798805][ C1] RIP: 0010:pv_native_safe_halt+0x13/0x20 [ 262.798826][ 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 [ 262.798840][ C1] RSP: 0018:ffffc900001d7de0 EFLAGS: 000002c2 [ 262.798853][ C1] RAX: 82af4a26a49a2e00 RBX: ffffffff81954cf7 RCX: 82af4a26a49a2e00 [ 262.798862][ C1] RDX: 0000000000000001 RSI: ffffffff8cd8de17 RDI: ffffffff8b3ddd60 [ 262.798872][ C1] RBP: ffffc900001d7f10 R08: ffff8880b89334db R09: 1ffff1101712669b [ 262.798882][ C1] R10: dffffc0000000000 R11: ffffed101712669c R12: ffffffff8ed63670 [ 262.798892][ C1] R13: 0000000000000001 R14: 0000000000000001 R15: 1ffff110036dfb40 [ 262.798902][ C1] FS: 0000000000000000(0000) GS:ffff888126ef9000(0000) knlGS:0000000000000000 [ 262.798915][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 262.798926][ C1] CR2: 0000561d87c59168 CR3: 000000000d3a6000 CR4: 00000000003526f0 [ 262.798941][ C1] Call Trace: [ 262.798947][ C1] [ 262.798952][ C1] default_idle+0x13/0x20 [ 262.798967][ C1] default_idle_call+0x73/0xb0 [ 262.798982][ C1] do_idle+0x1e7/0x510 [ 262.798999][ C1] ? __pfx_do_idle+0x10/0x10 [ 262.799014][ C1] ? _raw_spin_unlock_irqrestore+0xad/0x110 [ 262.799038][ C1] ? complete+0xb1/0x1b0 [ 262.799055][ C1] cpu_startup_entry+0x44/0x60 [ 262.799069][ C1] start_secondary+0x101/0x110 [ 262.799085][ C1] common_startup_64+0x13e/0x147 [ 262.799122][ C1]