[ 60.447317][ T1405] bridge0: port 1(bridge_slave_0) entered disabled state
[ 60.472087][ T1405] device veth1_macvtap left promiscuous mode
[ 60.480344][ T1405] device veth0_macvtap left promiscuous mode
[ 60.487110][ T1405] device veth1_vlan left promiscuous mode
[ 60.495567][ T1405] device veth0_vlan left promiscuous mode
[ 60.655297][ T1405] team0 (unregistering): Port device team_slave_1 removed
[ 60.667104][ T1405] team0 (unregistering): Port device team_slave_0 removed
[ 60.679330][ T1405] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface
[ 60.695688][ T1405] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface
[ 60.746476][ T1405] bond0 (unregistering): Released all slaves
[ 71.375392][ T1423] ieee802154 phy0 wpan0: encryption failed: -22
[ 71.381887][ T1423] ieee802154 phy1 wpan1: encryption failed: -22
Warning: Permanently added '10.128.0.102' (ED25519) to the list of known hosts.
2026/02/13 01:06:03 ignoring optional flag "type"="gce"
2026/02/13 01:06:03 parsed 1 programs
2026/02/13 01:06:05 executed programs: 0
[ 76.014367][ T4462] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS
[ 76.179146][ T4511] chnl_net:caif_netlink_parms(): no params data found
[ 76.244804][ T4511] bridge0: port 1(bridge_slave_0) entered blocking state
[ 76.262524][ T4511] bridge0: port 1(bridge_slave_0) entered disabled state
[ 76.273899][ T4511] device bridge_slave_0 entered promiscuous mode
[ 76.282815][ T4511] bridge0: port 2(bridge_slave_1) entered blocking state
[ 76.291491][ T4511] bridge0: port 2(bridge_slave_1) entered disabled state
[ 76.301187][ T4511] device bridge_slave_1 entered promiscuous mode
[ 76.326268][ T4511] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[ 76.339584][ T4511] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[ 76.370906][ T4511] team0: Port device team_slave_0 added
[ 76.378169][ T4511] team0: Port device team_slave_1 added
[ 76.398699][ T4511] batman_adv: batadv0: Adding interface: batadv_slave_0
[ 76.405950][ T4511] 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.
[ 76.434805][ T4511] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[ 76.447893][ T4511] batman_adv: batadv0: Adding interface: batadv_slave_1
[ 76.455607][ T4511] 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.
[ 76.483823][ T4511] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[ 76.519429][ T4511] device hsr_slave_0 entered promiscuous mode
[ 76.526756][ T4511] device hsr_slave_1 entered promiscuous mode
[ 77.276177][ T4511] netdevsim netdevsim0 netdevsim0: renamed from eth0
[ 77.286986][ T4511] netdevsim netdevsim0 netdevsim1: renamed from eth1
[ 77.297484][ T4511] netdevsim netdevsim0 netdevsim2: renamed from eth2
[ 77.314468][ T4511] netdevsim netdevsim0 netdevsim3: renamed from eth3
[ 77.392645][ T4511] 8021q: adding VLAN 0 to HW filter on device bond0
[ 77.407634][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready
[ 77.416784][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
[ 77.428549][ T4511] 8021q: adding VLAN 0 to HW filter on device team0
[ 77.440063][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready
[ 77.450884][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready
[ 77.460417][ T144] bridge0: port 1(bridge_slave_0) entered blocking state
[ 77.467818][ T144] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 77.488557][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready
[ 77.497927][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready
[ 77.509634][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready
[ 77.519077][ T144] bridge0: port 2(bridge_slave_1) entered blocking state
[ 77.526496][ T144] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 77.539955][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready
[ 77.560069][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready
[ 77.570959][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready
[ 77.583660][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready
[ 77.595412][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready
[ 77.605704][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready
[ 77.625434][ T4511] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network
[ 77.638114][ T4511] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network
[ 77.651368][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready
[ 77.662682][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready
[ 77.671418][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready
[ 77.683132][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready
[ 77.692193][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready
[ 77.708570][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready
[ 77.832252][ T1405] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
[ 77.841090][ T1405] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
[ 77.857247][ T4511] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 77.881130][ T1405] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready
[ 77.894007][ T1405] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready
[ 77.916720][ T1405] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready
[ 77.925596][ T1405] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready
[ 77.935514][ T1405] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready
[ 77.945153][ T1405] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready
[ 77.955776][ T4511] device veth0_vlan entered promiscuous mode
[ 77.971068][ T4511] device veth1_vlan entered promiscuous mode
[ 77.995372][ T1405] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready
[ 78.004772][ T1405] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready
[ 78.015510][ T1405] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready
[ 78.025557][ T1405] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready
[ 78.037172][ T4511] device veth0_macvtap entered promiscuous mode
[ 78.049849][ T4511] device veth1_macvtap entered promiscuous mode
[ 78.068947][ T4511] batman_adv: batadv0: Interface activated: batadv_slave_0
[ 78.078113][ T1405] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready
[ 78.087190][ T1405] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready
[ 78.096112][ T1405] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready
[ 78.103423][ T4264] Bluetooth: hci0: command 0x0409 tx timeout
[ 78.106477][ T1405] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready
[ 78.127940][ T4511] batman_adv: batadv0: Interface activated: batadv_slave_1
[ 78.136420][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready
[ 78.145466][ T144] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready
[ 78.157309][ T4511] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[ 78.167034][ T4511] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[ 78.176488][ T4511] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[ 78.185997][ T4511] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[ 78.530874][ T4594] loop0: detected capacity change from 0 to 32768
[ 78.560329][ T4594] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4594)
[ 78.629397][ T4594] BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm
[ 78.656168][ T4594] BTRFS info (device loop0): force clearing of disk cache
[ 78.671436][ T4594] BTRFS info (device loop0): setting nodatasum
[ 78.679782][ T4594] BTRFS info (device loop0): allowing degraded mounts
[ 78.688383][ T4594] BTRFS info (device loop0): enabling disk space caching
[ 78.697341][ T4594] BTRFS info (device loop0): disk space caching is enabled
[ 78.705269][ T4594] BTRFS info (device loop0): has skinny extents
[ 78.837387][ T4594] BTRFS info (device loop0): enabling ssd optimizations
[ 78.857823][ T4594] BTRFS info (device loop0): clearing free space tree
[ 78.869901][ T4594] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1)
[ 78.885715][ T4594] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2)
[ 78.924046][ T4594] BTRFS info (device loop0): checking UUID tree
[ 78.980479][ T4594] BTRFS info (device loop0): balance: start -d -m -s
[ 79.000910][ T4594] BTRFS info (device loop0): relocating block group 6881280 flags data|metadata
[ 79.109394][ T4594] BTRFS info (device loop0): relocating block group 5242880 flags data|metadata
[ 79.119981][ T144] ------------[ cut here ]------------
[ 79.137122][ T144] WARNING: CPU: 0 PID: 144 at fs/btrfs/extent-tree.c:3082 __btrfs_free_extent+0x882/0x2100
[ 79.148970][ T144] Modules linked in:
[ 79.161444][ T4594] BTRFS info (device loop0): 1 enospc errors during balance
[ 79.173931][ T144] CPU: 0 PID: 144 Comm: kworker/u4:1 Not tainted syzkaller #0
[ 79.181537][ T144] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 79.192863][ T4594] BTRFS info (device loop0): balance: canceled
[ 79.213869][ T4594] BTRFS warning (device loop0): Skipping commit of aborted transaction.
[ 79.232426][ T144] Workqueue: events_unbound btrfs_async_reclaim_metadata_space
[ 79.240655][ T144] RIP: 0010:__btrfs_free_extent+0x882/0x2100
[ 79.242600][ T4594] BTRFS: error (device loop0) in cleanup_transaction:2021: errno=-30 Readonly filesystem
[ 79.250425][ T144] Code: fe e9 38 02 00 00 e8 7d e5 38 fe 0f 1f 44 00 00 e8 73 e5 38 fe eb 15 e8 6c e5 38 fe 48 c7 c7 60 8e 6a 8a 89 de e8 7e ec 70 06 <0f> 0b 4c 89 f7 48 c7 c6 e0 9b 6a 8a ba 0a 0c 00 00 89 d9 e8 06 1d
[ 79.283211][ T4644] BTRFS warning (device loop0): failed to trim 1 block group(s), last error -512
[ 79.303564][ T4594] BTRFS info (device loop0): forced readonly
[ 79.304744][ T144] RSP: 0018:ffffc9000156f5c0 EFLAGS: 00010246
[ 79.321532][ T144] RAX: f7007a567e3bf100 RBX: 00000000ffffffe4 RCX: ffff88801bd1bb80
[ 79.336291][ T144] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
[ 79.347385][ T144] RBP: ffffc9000156f720 R08: ffff8880b902795b R09: 1ffff11017204f2b
[ 79.357088][ T144] R10: dffffc0000000000 R11: ffffed1017204f2c R12: 00000000ffffffe4
[ 79.366307][ T144] R13: 00000000ffffffe4 R14: ffff888075214580 R15: dffffc0000000000
[ 79.377061][ T144] FS: 0000000000000000(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
[ 79.386909][ T144] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 79.393873][ T144] CR2: 000056430928b828 CR3: 000000007a892000 CR4: 00000000003506e0
[ 79.402713][ T144] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 79.410892][ T144] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 79.419672][ T144] Call Trace:
[ 79.423100][ T144]
[ 79.426331][ T144] ? __btrfs_inc_extent_ref+0x600/0x600
[ 79.432222][ T144] ? btrfs_tree_mod_log_lowest_seq+0x81/0x90
[ 79.440101][ T144] __btrfs_run_delayed_refs+0xf66/0x3910
[ 79.446790][ T144] ? btrfs_run_delayed_refs+0x480/0x480
[ 79.455212][ T144] ? do_raw_spin_unlock+0x11d/0x230
[ 79.461103][ T144] ? btrfs_record_root_in_trans+0x8d/0x180
[ 79.467802][ T144] ? start_transaction+0x3d8/0x1130
[ 79.474681][ T144] btrfs_run_delayed_refs+0x140/0x480
[ 79.480236][ T144] flush_space+0x91d/0xc70
[ 79.485196][ T144] ? btrfs_async_reclaim_metadata_space+0x258/0x330
[ 79.492060][ T144] ? btrfs_calc_reclaim_metadata_size+0x280/0x280
[ 79.500185][ T144] ? do_raw_spin_unlock+0x11d/0x230
[ 79.505695][ T144] btrfs_async_reclaim_metadata_space+0x26f/0x330
[ 79.514263][ T144] process_one_work+0x85f/0x1010
[ 79.519468][ T144] ? worker_detach_from_pool+0x240/0x240
[ 79.525622][ T144] ? lockdep_hardirqs_off+0x70/0x100
[ 79.531173][ T144] ? _raw_spin_lock_irq+0xb7/0xf0
[ 79.539352][ T144] ? _raw_spin_lock_irqsave+0x100/0x100
[ 79.545245][ T144] ? wq_worker_running+0x97/0x170
[ 79.550443][ T144] worker_thread+0xaa6/0x1290
[ 79.557861][ T144] ? lockdep_hardirqs_on+0x94/0x140
[ 79.563995][ T144] ? _raw_spin_unlock_irqrestore+0xc1/0x120
[ 79.570256][ T144] kthread+0x436/0x520
[ 79.576335][ T144] ? rcu_lock_release+0x20/0x20
[ 79.581588][ T144] ? kthread_blkcg+0xd0/0xd0
[ 79.586817][ T144] ret_from_fork+0x1f/0x30
[ 79.591387][ T144]
[ 79.596219][ T144] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 79.603879][ T144] CPU: 0 PID: 144 Comm: kworker/u4:1 Not tainted syzkaller #0
[ 79.611460][ T144] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 79.621941][ T144] Workqueue: events_unbound btrfs_async_reclaim_metadata_space
[ 79.630079][ T144] Call Trace:
[ 79.633467][ T144]
[ 79.636508][ T144] dump_stack_lvl+0x188/0x250
[ 79.641408][ T144] ? show_regs_print_info+0x20/0x20
[ 79.646828][ T144] ? load_image+0x400/0x400
[ 79.651568][ T144] panic+0x2e5/0x810
[ 79.655595][ T144] ? bpf_jit_dump+0xd0/0xd0
[ 79.660235][ T144] ? ret_from_fork+0x1f/0x30
[ 79.665050][ T144] ? __btrfs_free_extent+0x882/0x2100
[ 79.670462][ T144] __warn+0x248/0x2b0
[ 79.674656][ T144] ? __btrfs_free_extent+0x882/0x2100
[ 79.680277][ T144] report_bug+0x1b7/0x2e0
[ 79.684828][ T144] handle_bug+0x3a/0x70
[ 79.689111][ T144] exc_invalid_op+0x16/0x40
[ 79.693740][ T144] asm_exc_invalid_op+0x16/0x20
[ 79.698726][ T144] RIP: 0010:__btrfs_free_extent+0x882/0x2100
[ 79.704919][ T144] Code: fe e9 38 02 00 00 e8 7d e5 38 fe 0f 1f 44 00 00 e8 73 e5 38 fe eb 15 e8 6c e5 38 fe 48 c7 c7 60 8e 6a 8a 89 de e8 7e ec 70 06 <0f> 0b 4c 89 f7 48 c7 c6 e0 9b 6a 8a ba 0a 0c 00 00 89 d9 e8 06 1d
[ 79.724834][ T144] RSP: 0018:ffffc9000156f5c0 EFLAGS: 00010246
[ 79.731435][ T144] RAX: f7007a567e3bf100 RBX: 00000000ffffffe4 RCX: ffff88801bd1bb80
[ 79.739627][ T144] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
[ 79.747733][ T144] RBP: ffffc9000156f720 R08: ffff8880b902795b R09: 1ffff11017204f2b
[ 79.755779][ T144] R10: dffffc0000000000 R11: ffffed1017204f2c R12: 00000000ffffffe4
[ 79.764318][ T144] R13: 00000000ffffffe4 R14: ffff888075214580 R15: dffffc0000000000
[ 79.772355][ T144] ? __btrfs_inc_extent_ref+0x600/0x600
[ 79.778358][ T144] ? btrfs_tree_mod_log_lowest_seq+0x81/0x90
[ 79.784495][ T144] __btrfs_run_delayed_refs+0xf66/0x3910
[ 79.790580][ T144] ? btrfs_run_delayed_refs+0x480/0x480
[ 79.796702][ T144] ? do_raw_spin_unlock+0x11d/0x230
[ 79.802205][ T144] ? btrfs_record_root_in_trans+0x8d/0x180
[ 79.808577][ T144] ? start_transaction+0x3d8/0x1130
[ 79.813905][ T144] btrfs_run_delayed_refs+0x140/0x480
[ 79.819702][ T144] flush_space+0x91d/0xc70
[ 79.824252][ T144] ? btrfs_async_reclaim_metadata_space+0x258/0x330
[ 79.831098][ T144] ? btrfs_calc_reclaim_metadata_size+0x280/0x280
[ 79.837814][ T144] ? do_raw_spin_unlock+0x11d/0x230
[ 79.843316][ T144] btrfs_async_reclaim_metadata_space+0x26f/0x330
[ 79.849869][ T144] process_one_work+0x85f/0x1010
[ 79.855304][ T144] ? worker_detach_from_pool+0x240/0x240
[ 79.861413][ T144] ? lockdep_hardirqs_off+0x70/0x100
[ 79.867002][ T144] ? _raw_spin_lock_irq+0xb7/0xf0
[ 79.872302][ T144] ? _raw_spin_lock_irqsave+0x100/0x100
[ 79.877889][ T144] ? wq_worker_running+0x97/0x170
[ 79.883386][ T144] worker_thread+0xaa6/0x1290
[ 79.888200][ T144] ? lockdep_hardirqs_on+0x94/0x140
[ 79.893525][ T144] ? _raw_spin_unlock_irqrestore+0xc1/0x120
[ 79.899824][ T144] kthread+0x436/0x520
[ 79.903933][ T144] ? rcu_lock_release+0x20/0x20
[ 79.908918][ T144] ? kthread_blkcg+0xd0/0xd0
[ 79.913644][ T144] ret_from_fork+0x1f/0x30
[ 79.918197][ T144]
[ 79.921652][ T144] Kernel Offset: disabled
[ 79.926348][ T144] Rebooting in 86400 seconds..