[ 34.635580][ T315] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 36.985102][ T315] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 37.034354][ T315] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 37.074965][ T315] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 38.293907][ T315] device hsr_slave_0 left promiscuous mode [ 38.331344][ T315] device hsr_slave_1 left promiscuous mode [ 38.431324][ T315] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 38.432742][ T315] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 38.434693][ T315] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 38.436141][ T315] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 38.437614][ T315] device bridge_slave_1 left promiscuous mode [ 38.438928][ T315] bridge0: port 2(bridge_slave_1) entered disabled state [ 38.482423][ T315] device bridge_slave_0 left promiscuous mode [ 38.483657][ T315] bridge0: port 1(bridge_slave_0) entered disabled state [ 38.611617][ T315] device veth1_macvtap left promiscuous mode [ 38.612798][ T315] device veth0_macvtap left promiscuous mode [ 38.613857][ T315] device veth1_vlan left promiscuous mode [ 38.614960][ T315] device veth0_vlan left promiscuous mode [ 38.698691][ T315] team0 (unregistering): Port device team_slave_1 removed [ 38.704517][ T315] team0 (unregistering): Port device team_slave_0 removed [ 38.708537][ T315] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 38.746174][ T315] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 38.854283][ T315] bond0 (unregistering): Released all slaves Warning: Permanently added '10.128.10.29' (ED25519) to the list of known hosts. 1970/01/01 00:00:39 ignoring optional flag "type"="gce" 1970/01/01 00:00:39 parsed 1 programs [ 39.371172][ T4249] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SSFS 1970/01/01 00:00:39 executed programs: 0 [ 39.434229][ T4256] chnl_net:caif_netlink_parms(): no params data found [ 39.454628][ T4256] bridge0: port 1(bridge_slave_0) entered blocking state [ 39.455944][ T4256] bridge0: port 1(bridge_slave_0) entered disabled state [ 39.457588][ T4256] device bridge_slave_0 entered promiscuous mode [ 39.459620][ T4256] bridge0: port 2(bridge_slave_1) entered blocking state [ 39.460722][ T4256] bridge0: port 2(bridge_slave_1) entered disabled state [ 39.462949][ T4256] device bridge_slave_1 entered promiscuous mode [ 39.471005][ T4256] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 39.474454][ T4256] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 39.482578][ T4256] team0: Port device team_slave_0 added [ 39.484463][ T4256] team0: Port device team_slave_1 added [ 39.491878][ T4256] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 39.493058][ T4256] 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. [ 39.497150][ T4256] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 39.499592][ T4256] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 39.500869][ T4256] 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. [ 39.506458][ T4256] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 39.563164][ T4256] device hsr_slave_0 entered promiscuous mode [ 39.601342][ T4256] device hsr_slave_1 entered promiscuous mode [ 40.197994][ T4256] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 40.232661][ T4256] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 40.285418][ T4256] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 40.322300][ T4256] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 40.372701][ T4256] 8021q: adding VLAN 0 to HW filter on device bond0 [ 40.376489][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 40.378323][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 40.382664][ T4256] 8021q: adding VLAN 0 to HW filter on device team0 [ 40.393508][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 40.395226][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 40.396877][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 40.398155][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 40.399758][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 40.412394][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 40.414226][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 40.415907][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 40.417170][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 40.419656][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 40.424921][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 40.426619][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 40.428557][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 40.430108][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 40.435898][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 40.440139][ T4256] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 40.442523][ T4256] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 40.445933][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 40.447672][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 40.449314][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 40.451791][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 40.453526][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 40.457347][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 40.501900][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 40.503334][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 40.507661][ T4256] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 40.514937][ T315] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 40.516586][ T315] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 40.528575][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 40.530373][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 40.534380][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 40.535917][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 40.538870][ T4256] device veth0_vlan entered promiscuous mode [ 40.543913][ T4256] device veth1_vlan entered promiscuous mode [ 40.550730][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 40.552859][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 40.554310][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 40.555914][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 40.559690][ T4256] device veth0_macvtap entered promiscuous mode [ 40.562932][ T4256] device veth1_macvtap entered promiscuous mode [ 40.568093][ T4256] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 40.569402][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 40.570955][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 40.573875][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 40.575540][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 40.578723][ T4256] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 40.580652][ T315] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 40.582375][ T315] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 40.584282][ T4256] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 40.585915][ T4256] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 40.587437][ T4256] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 40.589010][ T4256] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 40.765757][ T4388] loop0: detected capacity change from 0 to 32768 [ 40.770022][ T4388] ======================================================= [ 40.770022][ T4388] WARNING: The mand mount option has been deprecated and [ 40.770022][ T4388] and is ignored by this kernel. Remove the mand [ 40.770022][ T4388] option from the mount to silence this warning. [ 40.770022][ T4388] ======================================================= [ 40.779156][ T4388] gfs2: fsid=}: Trying to join cluster "lock_nolock", "}" [ 40.782906][ T4388] gfs2: fsid=}: Now mounting FS (format 1801)... [ 40.795755][ T4388] gfs2: fsid=}.0: journal 0 mapped with 16 extents in 0ms [ 40.799810][ T25] gfs2: fsid=}.0: jid=0, already locked for use [ 40.801168][ T25] gfs2: fsid=}.0: jid=0: Looking at journal... [ 40.821616][ T25] gfs2: fsid=}.0: jid=0: Journal head lookup took 20ms [ 40.824483][ T25] gfs2: fsid=}.0: jid=0: Done [ 40.825541][ T4388] gfs2: fsid=}.0: first mount done, others may mount [ 41.461877][ T4076] Bluetooth: hci0: command 0x0409 tx timeout [ 43.541151][ T3624] Bluetooth: hci0: command 0x041b tx timeout [ 45.621138][ T3624] Bluetooth: hci0: command 0x040f tx timeout [ 47.701152][ T3624] Bluetooth: hci0: command 0x0419 tx timeout [ 69.622579][ T2063] ieee802154 phy0 wpan0: encryption failed: -22 [ 69.623775][ T2063] ieee802154 phy1 wpan1: encryption failed: -22 [ 69.628177][ T3337] cfg80211: failed to load regulatory.db [ 131.061950][ T2063] ieee802154 phy0 wpan0: encryption failed: -22 [ 131.063230][ T2063] ieee802154 phy1 wpan1: encryption failed: -22 [ 163.861539][ T3624] Bluetooth: hci0: command 0x0406 tx timeout [ 192.501633][ T2063] ieee802154 phy0 wpan0: encryption failed: -22 [ 192.502724][ T2063] ieee802154 phy1 wpan1: encryption failed: -22 [ 193.781171][ T27] INFO: task syz-executor.0:4256 blocked for more than 143 seconds. [ 193.782723][ T27] Not tainted syzkaller #0 [ 193.783563][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 193.784886][ T27] task:syz-executor.0 state:D stack: 0 pid: 4256 ppid: 1 flags:0x00000005 [ 193.786394][ T27] Call trace: [ 193.786935][ T27] __switch_to+0x2f4/0x540 [ 193.787793][ T27] __schedule+0xe20/0x1c6c [ 193.788581][ T27] schedule+0x11c/0x1c8 [ 193.789329][ T27] bit_wait+0x1c/0xac [ 193.790019][ T27] out_of_line_wait_on_bit+0x16c/0x218 [ 193.790863][ T27] gfs2_glock_nq+0x8dc/0x13d0 [ 193.792094][ T27] __gfs2_lookup+0x120/0x28c [ 193.792851][ T27] gfs2_lookup+0x2c/0x3c [ 193.793606][ T27] __lookup_slow+0x25c/0x39c [ 193.794407][ T27] lookup_slow+0x60/0x84 [ 193.795180][ T27] walk_component+0x2b8/0x3b8 [ 193.796026][ T27] path_lookupat+0x168/0x3f0 [ 193.796751][ T27] filename_lookup+0x1c8/0x478 [ 193.797638][ T27] user_path_at_empty+0x5c/0x1a0 [ 193.798465][ T27] __arm64_sys_umount+0xf8/0x184 [ 193.799364][ T27] invoke_syscall+0x98/0x28c [ 193.800156][ T27] el0_svc_common+0x13c/0x258 [ 193.800961][ T27] do_el0_svc+0x5c/0x140 [ 193.801799][ T27] el0_svc+0x78/0x1d0 [ 193.802528][ T27] el0t_64_sync_handler+0xcc/0xe4 [ 193.803439][ T27] el0t_64_sync+0x1a0/0x1a4 [ 193.804219][ T27] [ 193.804219][ T27] Showing all locks held in the system: [ 193.805612][ T27] 1 lock held by khungtaskd/27: [ 193.806514][ T27] #0: ffff800014571460 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 [ 193.808209][ T27] 2 locks held by getty/3804: [ 193.808904][ T27] #0: ffff0000d3907098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x40/0x50 [ 193.810509][ T27] #1: ffff80001bdde2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x2ec/0xf90 [ 193.812312][ T27] 1 lock held by syz-executor.0/4256: [ 193.813189][ T27] #0: ffff0000e2952338 (&type->i_mutex_dir_key#8){.+.+}-{3:3}, at: lookup_slow+0x50/0x84 [ 193.814954][ T27] [ 193.815365][ T27] ============================================= [ 193.815365][ T27] [ 193.816766][ T27] Kernel panic - not syncing: hung_task: blocked tasks [ 193.817913][ T27] CPU: 1 PID: 27 Comm: khungtaskd Not tainted syzkaller #0 [ 193.819158][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 193.820837][ T27] Call trace: [ 193.821410][ T27] dump_backtrace+0x0/0x458 [ 193.822167][ T27] show_stack+0x2c/0x3c [ 193.822894][ T27] __dump_stack+0x30/0x40 [ 193.823678][ T27] dump_stack_lvl+0xf4/0x15c [ 193.824445][ T27] dump_stack+0x1c/0x5c [ 193.825147][ T27] panic+0x2fc/0x860 [ 193.825837][ T27] hung_task_panic+0x0/0x2c [ 193.826642][ T27] kthread+0x37c/0x460 [ 193.827344][ T27] ret_from_fork+0x10/0x20 [ 193.828085][ T27] SMP: stopping secondary CPUs [ 193.828866][ T27] Kernel Offset: disabled [ 193.829509][ T27] CPU features: 0xa,000003c1,7d33ffd9 [ 193.830432][ T27] Memory Limit: none [ 194.033223][ T27] Rebooting in 86400 seconds..