Warning: Permanently added '10.128.1.107' (ED25519) to the list of known hosts. 1970/01/01 00:00:44 ignoring optional flag "type"="gce" 1970/01/01 00:00:45 parsed 1 programs [ 45.107701][ T4241] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SSFS 1970/01/01 00:00:45 executed programs: 0 [ 45.177737][ T4247] chnl_net:caif_netlink_parms(): no params data found [ 45.198729][ T4247] bridge0: port 1(bridge_slave_0) entered blocking state [ 45.199948][ T4247] bridge0: port 1(bridge_slave_0) entered disabled state [ 45.201527][ T4247] device bridge_slave_0 entered promiscuous mode [ 45.203546][ T4247] bridge0: port 2(bridge_slave_1) entered blocking state [ 45.204687][ T4247] bridge0: port 2(bridge_slave_1) entered disabled state [ 45.206175][ T4247] device bridge_slave_1 entered promiscuous mode [ 45.215508][ T4247] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 45.219463][ T4247] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 45.229023][ T4247] team0: Port device team_slave_0 added [ 45.231019][ T4247] team0: Port device team_slave_1 added [ 45.239082][ T4247] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 45.240180][ T4247] 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. [ 45.244080][ T4247] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 45.247329][ T4247] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 45.248416][ T4247] 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. [ 45.252588][ T4247] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 45.317534][ T4247] device hsr_slave_0 entered promiscuous mode [ 45.386478][ T4247] device hsr_slave_1 entered promiscuous mode [ 45.950244][ T4247] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 45.977637][ T4247] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 46.008058][ T4247] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 46.087865][ T4247] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 46.143776][ T4247] bridge0: port 2(bridge_slave_1) entered blocking state [ 46.145100][ T4247] bridge0: port 2(bridge_slave_1) entered forwarding state [ 46.146495][ T4247] bridge0: port 1(bridge_slave_0) entered blocking state [ 46.147770][ T4247] bridge0: port 1(bridge_slave_0) entered forwarding state [ 46.168126][ T1636] bridge0: port 1(bridge_slave_0) entered disabled state [ 46.170161][ T1636] bridge0: port 2(bridge_slave_1) entered disabled state [ 46.176026][ T4247] 8021q: adding VLAN 0 to HW filter on device bond0 [ 46.181355][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 46.182781][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 46.187262][ T4247] 8021q: adding VLAN 0 to HW filter on device team0 [ 46.189971][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 46.191497][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 46.192938][ T136] bridge0: port 1(bridge_slave_0) entered blocking state [ 46.194042][ T136] bridge0: port 1(bridge_slave_0) entered forwarding state [ 46.201507][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 46.203218][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 46.204786][ T1636] bridge0: port 2(bridge_slave_1) entered blocking state [ 46.205949][ T1636] bridge0: port 2(bridge_slave_1) entered forwarding state [ 46.210477][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 46.213594][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 46.216125][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 46.219719][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 46.223351][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 46.224798][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 46.226598][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 46.231945][ T4247] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 46.233689][ T4247] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 46.235913][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 46.239537][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 46.241761][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 46.243490][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 46.247992][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 46.295608][ T4247] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 46.299755][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 46.301054][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 46.308571][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 46.310265][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 46.318839][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 46.320444][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 46.321984][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 46.323396][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 46.326142][ T4247] device veth0_vlan entered promiscuous mode [ 46.330510][ T4247] device veth1_vlan entered promiscuous mode [ 46.340628][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 46.342183][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 46.343686][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 46.345177][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 46.349403][ T4247] device veth0_macvtap entered promiscuous mode [ 46.351887][ T4247] device veth1_macvtap entered promiscuous mode [ 46.358835][ T4247] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 46.360057][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 46.361761][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 46.363201][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 46.364930][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 46.369274][ T4247] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 46.370504][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 46.372108][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 46.375047][ T4247] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 46.376939][ T4247] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 46.378349][ T4247] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 46.379741][ T4247] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 46.517236][ T4372] loop0: detected capacity change from 0 to 32768 [ 47.206927][ T4063] Bluetooth: hci0: command 0x0409 tx timeout [ 49.286240][ T4063] Bluetooth: hci0: command 0x041b tx timeout [ 51.366257][ T7] Bluetooth: hci0: command 0x040f tx timeout [ 53.446621][ T25] Bluetooth: hci0: command 0x0419 tx timeout [ 69.607758][ T2064] ieee802154 phy0 wpan0: encryption failed: -22 [ 69.608973][ T2064] ieee802154 phy1 wpan1: encryption failed: -22 [ 69.614979][ T1968] cfg80211: failed to load regulatory.db 1970/01/01 00:01:16 executed programs: 1 [ 77.500283][ T4537] chnl_net:caif_netlink_parms(): no params data found [ 77.520962][ T4537] bridge0: port 1(bridge_slave_0) entered blocking state [ 77.522263][ T4537] bridge0: port 1(bridge_slave_0) entered disabled state [ 77.523872][ T4537] device bridge_slave_0 entered promiscuous mode [ 77.525937][ T4537] bridge0: port 2(bridge_slave_1) entered blocking state [ 77.527662][ T4537] bridge0: port 2(bridge_slave_1) entered disabled state [ 77.529188][ T4537] device bridge_slave_1 entered promiscuous mode [ 77.537999][ T4537] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 77.540514][ T4537] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 77.550004][ T4537] team0: Port device team_slave_0 added [ 77.551901][ T4537] team0: Port device team_slave_1 added [ 77.559253][ T4537] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 77.560441][ T4537] 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. [ 77.564689][ T4537] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 77.566985][ T4537] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 77.568106][ T4537] 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. [ 77.572430][ T4537] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 77.627960][ T4537] device hsr_slave_0 entered promiscuous mode [ 77.667027][ T4537] device hsr_slave_1 entered promiscuous mode [ 77.706296][ T4537] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 77.707587][ T4537] Cannot create hsr debugfs directory [ 77.744772][ T4537] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 77.794537][ T4537] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 77.853091][ T4537] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 77.897825][ T4537] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 78.049652][ T4537] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 78.089103][ T4537] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 78.128841][ T4537] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 78.169125][ T4537] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 78.224893][ T4537] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.226161][ T4537] bridge0: port 2(bridge_slave_1) entered forwarding state [ 78.227463][ T4537] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.228720][ T4537] bridge0: port 1(bridge_slave_0) entered forwarding state [ 78.252538][ T4537] 8021q: adding VLAN 0 to HW filter on device bond0 [ 78.258741][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 78.260526][ T148] bridge0: port 1(bridge_slave_0) entered disabled state [ 78.262591][ T148] bridge0: port 2(bridge_slave_1) entered disabled state [ 78.264364][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 78.270812][ T4537] 8021q: adding VLAN 0 to HW filter on device team0 [ 78.274200][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 78.275720][ T1636] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.276855][ T1636] bridge0: port 1(bridge_slave_0) entered forwarding state [ 78.290170][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 78.291765][ T1636] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.292905][ T1636] bridge0: port 2(bridge_slave_1) entered forwarding state [ 78.305191][ T4537] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 78.307475][ T4537] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 78.311482][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 78.313353][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 78.315117][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 78.317961][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 78.321858][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 78.323343][ T1636] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 78.370038][ T4537] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 78.378775][ T401] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 78.380090][ T401] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 78.381485][ T401] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 78.391177][ T401] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 78.392835][ T401] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 78.394287][ T401] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 78.399897][ T4537] device veth0_vlan entered promiscuous mode [ 78.403740][ T4537] device veth1_vlan entered promiscuous mode [ 78.414050][ T401] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 78.415625][ T401] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 78.418407][ T401] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 78.421600][ T4537] device veth0_macvtap entered promiscuous mode [ 78.424171][ T4537] device veth1_macvtap entered promiscuous mode [ 78.430842][ T4537] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 78.432625][ T4537] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 78.434967][ T4537] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 78.437828][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 78.439798][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 78.447671][ T4537] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 78.449371][ T4537] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 78.456578][ T4537] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 78.458913][ T401] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 78.461742][ T4537] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.463169][ T4537] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.464614][ T4537] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.466068][ T4537] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 79.446523][ T4544] Bluetooth: hci1: command 0x0409 tx timeout 1970/01/01 00:01:21 executed programs: 19 [ 81.526620][ T7] Bluetooth: hci1: command 0x041b tx timeout [ 83.606434][ T4544] Bluetooth: hci1: command 0x040f tx timeout [ 85.686311][ T4544] Bluetooth: hci1: command 0x0419 tx timeout 1970/01/01 00:01:26 executed programs: 47 1970/01/01 00:01:31 executed programs: 76 1970/01/01 00:01:36 executed programs: 105 1970/01/01 00:01:41 executed programs: 134 1970/01/01 00:01:46 executed programs: 163 1970/01/01 00:01:51 executed programs: 193 1970/01/01 00:01:57 executed programs: 222 1970/01/01 00:02:02 executed programs: 252 1970/01/01 00:02:07 executed programs: 281 [ 131.047020][ T2064] ieee802154 phy0 wpan0: encryption failed: -22 [ 131.048064][ T2064] ieee802154 phy1 wpan1: encryption failed: -22 1970/01/01 00:02:12 executed programs: 309 1970/01/01 00:02:17 executed programs: 338 1970/01/01 00:02:22 executed programs: 367 1970/01/01 00:02:27 executed programs: 398 1970/01/01 00:02:33 executed programs: 428 1970/01/01 00:02:38 executed programs: 458 1970/01/01 00:02:43 executed programs: 487 1970/01/01 00:02:48 executed programs: 516 [ 168.966756][ T4063] Bluetooth: hci0: command 0x0406 tx timeout 1970/01/01 00:02:53 executed programs: 545 1970/01/01 00:02:58 executed programs: 573 1970/01/01 00:03:03 executed programs: 603 1970/01/01 00:03:08 executed programs: 632 [ 192.487088][ T2064] ieee802154 phy0 wpan0: encryption failed: -22 [ 192.488219][ T2064] ieee802154 phy1 wpan1: encryption failed: -22 1970/01/01 00:03:13 executed programs: 660 1970/01/01 00:03:18 executed programs: 689 [ 199.703057][ T4544] Bluetooth: hci1: command 0x0406 tx timeout 1970/01/01 00:03:23 executed programs: 719 1970/01/01 00:03:28 executed programs: 748 [ 209.766370][ T27] INFO: task kworker/u4:0:9 blocked for more than 143 seconds. [ 209.767608][ T27] Not tainted syzkaller #0 [ 209.768282][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 209.769565][ T27] task:kworker/u4:0 state:D stack: 0 pid: 9 ppid: 2 flags:0x00000008 [ 209.770846][ T27] Workqueue: writeback wb_workfn (flush-7:0) [ 209.771777][ T27] Call trace: [ 209.772245][ T27] __switch_to+0x2f4/0x540 [ 209.772966][ T27] __schedule+0xdfc/0x1bc4 [ 209.773708][ T27] schedule+0x11c/0x1c8 [ 209.774378][ T27] schedule_preempt_disabled+0x18/0x2c [ 209.775225][ T27] __mutex_lock_common+0xac8/0x1f14 [ 209.776100][ T27] mutex_lock_nested+0xac/0x11c [ 209.786228][ T27] jfs_commit_inode+0x19c/0x498 [ 209.787044][ T27] jfs_write_inode+0x128/0x1f8 [ 209.787774][ T27] __writeback_single_inode+0x560/0x11c8 [ 209.788682][ T27] writeback_sb_inodes+0x830/0x13a8 [ 209.789507][ T27] __writeback_inodes_wb+0x110/0x394 [ 209.790355][ T27] wb_writeback+0x400/0xe64 [ 209.791028][ T27] wb_workfn+0xae8/0xe44 [ 209.791651][ T27] process_one_work+0x79c/0x1138 [ 209.792385][ T27] worker_thread+0x8f4/0x1034 [ 209.793085][ T27] kthread+0x374/0x454 [ 209.793735][ T27] ret_from_fork+0x10/0x20 [ 209.796871][ T27] [ 209.796871][ T27] Showing all locks held in the system: [ 209.798082][ T27] 4 locks held by kworker/u4:0/9: [ 209.798949][ T27] #0: ffff0000c1e37938 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x678/0x1138 [ 209.800495][ T27] #1: ffff80001b407c00 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x6b8/0x1138 [ 209.802382][ T27] #2: ffff0000c0edc0e0 (&type->s_umount_key#49){.+.+}-{3:3}, at: trylock_super+0x24/0xf4 [ 209.804015][ T27] #3: ffff0000deb13008 (&jfs_ip->commit_mutex){+.+.}-{3:3}, at: jfs_commit_inode+0x19c/0x498 [ 209.805670][ T27] 1 lock held by khungtaskd/27: [ 209.816206][ T27] #0: ffff800014471360 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 [ 209.817697][ T27] 2 locks held by getty/3804: [ 209.818457][ T27] #0: ffff0000d541a098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x40/0x50 [ 209.820023][ T27] #1: ffff80001b9032e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x2f0/0xf6c [ 209.821653][ T27] 4 locks held by syz-executor.0/4372: [ 209.822550][ T27] [ 209.822939][ T27] ============================================= [ 209.822939][ T27] [ 209.824305][ T27] Kernel panic - not syncing: hung_task: blocked tasks [ 209.825414][ T27] CPU: 1 PID: 27 Comm: khungtaskd Not tainted syzkaller #0 [ 209.826512][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 209.828040][ T27] Call trace: [ 209.828561][ T27] dump_backtrace+0x0/0x458 [ 209.829269][ T27] show_stack+0x2c/0x3c [ 209.829976][ T27] __dump_stack+0x30/0x40 [ 209.830747][ T27] dump_stack_lvl+0xf4/0x15c [ 209.831511][ T27] dump_stack+0x1c/0x5c [ 209.832157][ T27] panic+0x2fc/0x860 [ 209.832833][ T27] hung_task_panic+0x0/0x2c [ 209.833566][ T27] kthread+0x374/0x454 [ 209.834205][ T27] ret_from_fork+0x10/0x20 [ 209.834962][ T27] SMP: stopping secondary CPUs [ 209.835755][ T27] Kernel Offset: disabled [ 209.836468][ T27] CPU features: 0x8,000003c1,7d33ffd9 [ 209.837362][ T27] Memory Limit: none [ 210.027790][ T27] Rebooting in 86400 seconds..