Warning: Permanently added '10.128.0.151' (ED25519) to the list of known hosts. 1970/01/01 00:01:01 ignoring optional flag "type"="gce" 1970/01/01 00:01:01 parsed 1 programs [ 62.925073][ T4447] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SSFS [ 66.478700][ T4503] chnl_net:caif_netlink_parms(): no params data found [ 66.495883][ T4503] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.497079][ T4503] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.498641][ T4503] device bridge_slave_0 entered promiscuous mode [ 66.500586][ T4503] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.501730][ T4503] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.503179][ T4503] device bridge_slave_1 entered promiscuous mode [ 66.510911][ T4503] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 66.513416][ T4503] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 66.521592][ T4503] team0: Port device team_slave_0 added [ 66.523405][ T4503] team0: Port device team_slave_1 added [ 66.530924][ T4503] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 66.531942][ T4503] 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. [ 66.536344][ T4503] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 66.538720][ T4503] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 66.539801][ T4503] 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. [ 66.544002][ T4503] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 66.586636][ T4503] device hsr_slave_0 entered promiscuous mode [ 66.626319][ T4503] device hsr_slave_1 entered promiscuous mode [ 67.338357][ T4503] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 67.376704][ T4503] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 67.416692][ T4503] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 67.447481][ T4503] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 67.507274][ T4503] 8021q: adding VLAN 0 to HW filter on device bond0 [ 67.510960][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 67.512355][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 67.514702][ T4503] 8021q: adding VLAN 0 to HW filter on device team0 [ 67.519005][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 67.520550][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 67.521922][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.523109][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 67.524566][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 67.529622][ T456] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 67.531307][ T456] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 67.532747][ T456] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.533972][ T456] bridge0: port 2(bridge_slave_1) entered forwarding state [ 67.535260][ T456] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 67.541694][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 67.546403][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 67.548170][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 67.563098][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 67.578756][ T4503] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 67.580406][ T4503] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 67.583442][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 67.585054][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 67.587896][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 67.589361][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 67.591017][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 67.592872][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 67.596909][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 67.630282][ T375] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 67.631543][ T375] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 67.634745][ T4503] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 67.641918][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 67.643455][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 67.649649][ T375] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 67.651264][ T375] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 67.652974][ T375] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 67.654361][ T375] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 67.659139][ T4503] device veth0_vlan entered promiscuous mode [ 67.662166][ T4503] device veth1_vlan entered promiscuous mode [ 67.669626][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 67.671152][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 67.672602][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 67.674110][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 67.684861][ T4503] device veth0_macvtap entered promiscuous mode [ 67.687803][ T4503] device veth1_macvtap entered promiscuous mode [ 67.694067][ T4503] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 67.695301][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 67.700523][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 67.702051][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 67.703553][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 67.706421][ T4503] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 67.707604][ T375] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 67.709269][ T375] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 67.712158][ T4503] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.713446][ T4503] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.714760][ T4503] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.716417][ T4503] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.791389][ T375] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 67.792582][ T375] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 67.793935][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 67.802255][ T375] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 67.803505][ T375] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 67.804929][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 1970/01/01 00:01:07 executed programs: 0 [ 67.992230][ T4649] chnl_net:caif_netlink_parms(): no params data found [ 68.010653][ T4649] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.011958][ T4649] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.013505][ T4649] device bridge_slave_0 entered promiscuous mode [ 68.016493][ T4649] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.017639][ T4649] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.019493][ T4649] device bridge_slave_1 entered promiscuous mode [ 68.028113][ T4649] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 68.030659][ T4649] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 68.039843][ T4649] team0: Port device team_slave_0 added [ 68.041585][ T4649] team0: Port device team_slave_1 added [ 68.048635][ T4649] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 68.049747][ T4649] 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. [ 68.054136][ T4649] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 68.070796][ T4649] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 68.071823][ T4649] 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. [ 68.076077][ T4649] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 68.127213][ T4649] device hsr_slave_0 entered promiscuous mode [ 68.136164][ T4649] device hsr_slave_1 entered promiscuous mode [ 68.165551][ T4649] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 68.166750][ T4649] Cannot create hsr debugfs directory [ 68.193887][ T4649] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 69.626641][ T3340] cfg80211: failed to load regulatory.db [ 69.636498][ T2063] ieee802154 phy0 wpan0: encryption failed: -22 [ 69.637625][ T2063] ieee802154 phy1 wpan1: encryption failed: -22 [ 70.025579][ T13] Bluetooth: hci0: command 0x0409 tx timeout [ 71.110431][ T4649] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 72.105479][ T4139] Bluetooth: hci0: command 0x041b tx timeout [ 73.498352][ T4649] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 73.549970][ T4649] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 73.705882][ T4649] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 73.756554][ T4649] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 73.776557][ T4649] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 73.816758][ T4649] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 73.882321][ T4649] 8021q: adding VLAN 0 to HW filter on device bond0 [ 73.886092][ T456] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 73.887515][ T456] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 73.890342][ T4649] 8021q: adding VLAN 0 to HW filter on device team0 [ 73.892669][ T456] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 73.894212][ T456] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 73.897134][ T456] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.898306][ T456] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.899716][ T456] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 73.902355][ T456] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 73.903920][ T456] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 73.905261][ T456] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.906483][ T456] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.912912][ T456] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 73.914644][ T456] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 73.917140][ T456] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 73.918805][ T456] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 73.920423][ T456] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 73.922637][ T456] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 73.924255][ T456] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 73.927184][ T456] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 73.928621][ T456] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 73.931205][ T456] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 73.932697][ T456] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 73.935104][ T4649] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 73.985647][ T456] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 73.987055][ T456] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 73.990171][ T4649] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 73.997115][ T456] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 73.998757][ T456] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 74.003958][ T456] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 74.006659][ T456] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 74.008177][ T456] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 74.009479][ T456] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 74.011855][ T4649] device veth0_vlan entered promiscuous mode [ 74.019135][ T4649] device veth1_vlan entered promiscuous mode [ 74.026460][ T456] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 74.027972][ T456] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 74.029369][ T456] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 74.030844][ T456] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 74.033182][ T4649] device veth0_macvtap entered promiscuous mode [ 74.035818][ T4649] device veth1_macvtap entered promiscuous mode [ 74.041096][ T4649] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 74.042685][ T4649] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 74.044742][ T4649] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 74.046464][ T456] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 74.047904][ T456] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 74.049285][ T456] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 74.050798][ T456] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 74.057205][ T4649] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 74.058822][ T4649] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 74.060762][ T4649] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 74.063063][ T4649] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.064364][ T4649] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.065972][ T4649] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.067369][ T4649] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.069407][ T456] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 74.071045][ T456] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 74.088100][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 74.089516][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 74.090866][ T456] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 74.100581][ T456] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 74.101965][ T456] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 74.103329][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 1970/01/01 00:01:14 executed programs: 2 [ 74.185805][ T4139] Bluetooth: hci0: command 0x040f tx timeout [ 74.227582][ T4880] loop0: detected capacity change from 0 to 32768 [ 74.272172][ T4880] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.15 (4880) [ 74.282360][ T4880] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 74.283936][ T4880] BTRFS info (device loop0): using free space tree [ 74.285067][ T4880] BTRFS info (device loop0): has skinny extents [ 74.299343][ T4880] BTRFS info (device loop0): enabling ssd optimizations [ 74.307333][ T4880] FAULT_INJECTION: forcing a failure. [ 74.307333][ T4880] name failslab, interval 1, probability 0, space 0, times 1 [ 74.309447][ T4880] CPU: 1 PID: 4880 Comm: syz.0.15 Not tainted syzkaller #0 [ 74.310523][ T4880] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 74.312033][ T4880] Call trace: [ 74.312563][ T4880] dump_backtrace+0x0/0x458 [ 74.313288][ T4880] show_stack+0x2c/0x3c [ 74.314015][ T4880] __dump_stack+0x30/0x40 [ 74.314731][ T4880] dump_stack_lvl+0xf4/0x15c [ 74.315562][ T4880] dump_stack+0x1c/0x5c [ 74.316262][ T4880] should_fail+0x3bc/0x514 [ 74.317063][ T4880] __should_failslab+0xbc/0x10c [ 74.317870][ T4880] should_failslab+0x10/0x28 [ 74.318593][ T4880] slab_pre_alloc_hook+0x64/0xe8 [ 74.319390][ T4880] kmem_cache_alloc+0x94/0x3d4 [ 74.320141][ T4880] btrfs_alloc_path+0x5c/0x68 [ 74.320930][ T4880] __btrfs_run_delayed_refs+0xe70/0x348c [ 74.321814][ T4880] btrfs_run_delayed_refs+0x124/0x458 [ 74.322621][ T4880] btrfs_commit_transaction+0x1e0/0x3078 [ 74.323586][ T4880] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 74.324522][ T4880] btrfs_ioctl+0x50c/0xa8c [ 74.325305][ T4880] __arm64_sys_ioctl+0x14c/0x1c8 [ 74.326153][ T4880] invoke_syscall+0x98/0x2b0 [ 74.326993][ T4880] el0_svc_common+0x138/0x258 [ 74.327751][ T4880] do_el0_svc+0x58/0x13c [ 74.328439][ T4880] el0_svc+0x78/0x1d0 [ 74.329103][ T4880] el0t_64_sync_handler+0xcc/0xe4 [ 74.329900][ T4880] el0t_64_sync+0x1a0/0x1a4 [ 74.335154][ T4880] BTRFS error (device loop0): failed to run delayed ref for logical 5242880 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 74.341913][ T4880] ------------[ cut here ]------------ [ 74.342926][ T4880] WARNING: CPU: 0 PID: 4880 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 74.344489][ T4880] Modules linked in: [ 74.345120][ T4880] CPU: 0 PID: 4880 Comm: syz.0.15 Not tainted syzkaller #0 [ 74.346385][ T4880] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 74.348053][ T4880] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 74.349323][ T4880] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 74.350241][ T4880] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 74.351269][ T4880] sp : ffff80001f7a77d0 [ 74.351942][ T4880] x29: ffff80001f7a77e0 x28: ffff0000cd2e9000 x27: dfff800000000000 [ 74.353303][ T4880] x26: ffff0000cd2e9024 x25: ffff0000d29d8000 x24: 1fffe0001bdcc421 [ 74.354651][ T4880] x23: 1fffe0001bdcc421 x22: ffff0000dee62108 x21: 00000000fffffff4 [ 74.355946][ T4880] x20: 0000000000000051 x19: ffff0000dee620b0 x18: 0000000000000001 [ 74.357243][ T4880] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 74.358562][ T4880] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 74.359958][ T4880] x11: 0000000000000000 x10: 0000000000000000 x9 : 1135a9dbe4670b00 [ 74.361389][ T4880] x8 : 1135a9dbe4670b00 x7 : 0000000000000001 x6 : 0000000000000001 [ 74.362788][ T4880] x5 : ffff80001f7a70d8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 74.364170][ T4880] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 74.365413][ T4880] Call trace: [ 74.365929][ T4880] btrfs_run_delayed_refs+0x3e4/0x458 [ 74.366837][ T4880] btrfs_commit_transaction+0x1e0/0x3078 [ 74.367670][ T4880] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 74.368529][ T4880] btrfs_ioctl+0x50c/0xa8c [ 74.369281][ T4880] __arm64_sys_ioctl+0x14c/0x1c8 [ 74.370073][ T4880] invoke_syscall+0x98/0x2b0 [ 74.370794][ T4880] el0_svc_common+0x138/0x258 [ 74.371503][ T4880] do_el0_svc+0x58/0x13c [ 74.372168][ T4880] el0_svc+0x78/0x1d0 [ 74.372782][ T4880] el0t_64_sync_handler+0xcc/0xe4 [ 74.373525][ T4880] el0t_64_sync+0x1a0/0x1a4 [ 74.374213][ T4880] irq event stamp: 80696 [ 74.374915][ T4880] hardirqs last enabled at (80695): [] __up_console_sem+0xb4/0xfc [ 74.376290][ T4880] hardirqs last disabled at (80696): [] el1_dbg+0x24/0x80 [ 74.377653][ T4880] softirqs last enabled at (80644): [] handle_softirqs+0xa40/0xbe4 [ 74.379045][ T4880] softirqs last disabled at (80589): [] __irq_exit_rcu+0x240/0x43c [ 74.380533][ T4880] ---[ end trace d8aa63e12cf4deb5 ]--- [ 74.383598][ T4880] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 74.385099][ T4880] BTRFS info (device loop0): forced readonly [ 74.564427][ T4904] loop0: detected capacity change from 0 to 32768 [ 74.608728][ T4904] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.16 (4904) [ 74.614371][ T4904] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 74.616028][ T4904] BTRFS info (device loop0): using free space tree [ 74.617019][ T4904] BTRFS info (device loop0): has skinny extents [ 74.624077][ T4904] BTRFS info (device loop0): enabling ssd optimizations [ 74.628109][ T4904] FAULT_INJECTION: forcing a failure. [ 74.628109][ T4904] name failslab, interval 1, probability 0, space 0, times 0 [ 74.630285][ T4904] CPU: 0 PID: 4904 Comm: syz.0.16 Tainted: G W syzkaller #0 [ 74.631719][ T4904] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 74.633275][ T4904] Call trace: [ 74.633772][ T4904] dump_backtrace+0x0/0x458 [ 74.634487][ T4904] show_stack+0x2c/0x3c [ 74.635134][ T4904] __dump_stack+0x30/0x40 [ 74.635800][ T4904] dump_stack_lvl+0xf4/0x15c [ 74.636505][ T4904] dump_stack+0x1c/0x5c [ 74.637183][ T4904] should_fail+0x3bc/0x514 [ 74.637885][ T4904] __should_failslab+0xbc/0x10c [ 74.638701][ T4904] should_failslab+0x10/0x28 [ 74.639481][ T4904] slab_pre_alloc_hook+0x64/0xe8 [ 74.640245][ T4904] kmem_cache_alloc+0x94/0x3d4 [ 74.640972][ T4904] btrfs_alloc_path+0x5c/0x68 [ 74.641733][ T4904] __btrfs_run_delayed_refs+0xe70/0x348c [ 74.642572][ T4904] btrfs_run_delayed_refs+0x124/0x458 [ 74.643428][ T4904] btrfs_commit_transaction+0x1e0/0x3078 [ 74.644381][ T4904] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 74.645252][ T4904] btrfs_ioctl+0x50c/0xa8c [ 74.645952][ T4904] __arm64_sys_ioctl+0x14c/0x1c8 [ 74.646788][ T4904] invoke_syscall+0x98/0x2b0 [ 74.647532][ T4904] el0_svc_common+0x138/0x258 [ 74.648236][ T4904] do_el0_svc+0x58/0x13c [ 74.648868][ T4904] el0_svc+0x78/0x1d0 [ 74.649467][ T4904] el0t_64_sync_handler+0xcc/0xe4 [ 74.650326][ T4904] el0t_64_sync+0x1a0/0x1a4 [ 74.651392][ T4904] BTRFS error (device loop0): failed to run delayed ref for logical 5242880 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 74.653411][ T4904] ------------[ cut here ]------------ [ 74.654462][ T4904] WARNING: CPU: 0 PID: 4904 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 74.656044][ T4904] Modules linked in: [ 74.656740][ T4904] CPU: 0 PID: 4904 Comm: syz.0.16 Tainted: G W syzkaller #0 [ 74.658117][ T4904] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 74.659748][ T4904] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 74.661070][ T4904] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 74.661973][ T4904] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 74.662884][ T4904] sp : ffff80001f7a77d0 [ 74.663577][ T4904] x29: ffff80001f7a77e0 x28: ffff0000d3239000 x27: dfff800000000000 [ 74.664807][ T4904] x26: ffff0000d3239024 x25: ffff0000d1c9c000 x24: 1fffe0001bdb7a21 [ 74.666056][ T4904] x23: 1fffe0001bdb7a21 x22: ffff0000dedbd108 x21: 00000000fffffff4 [ 74.667380][ T4904] x20: 0000000000000051 x19: ffff0000dedbd0b0 x18: 0000000000000001 [ 74.668759][ T4904] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 74.670088][ T4904] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 74.671430][ T4904] x11: 0000000000000000 x10: 0000000000000000 x9 : f3f183567c94f000 [ 74.672740][ T4904] x8 : f3f183567c94f000 x7 : 0000000000000001 x6 : 0000000000000001 [ 74.674031][ T4904] x5 : ffff80001f7a70d8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 74.675347][ T4904] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 74.676667][ T4904] Call trace: [ 74.677235][ T4904] btrfs_run_delayed_refs+0x3e4/0x458 [ 74.678175][ T4904] btrfs_commit_transaction+0x1e0/0x3078 [ 74.679104][ T4904] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 74.679948][ T4904] btrfs_ioctl+0x50c/0xa8c [ 74.680666][ T4904] __arm64_sys_ioctl+0x14c/0x1c8 [ 74.681478][ T4904] invoke_syscall+0x98/0x2b0 [ 74.682253][ T4904] el0_svc_common+0x138/0x258 [ 74.683000][ T4904] do_el0_svc+0x58/0x13c [ 74.683734][ T4904] el0_svc+0x78/0x1d0 [ 74.684353][ T4904] el0t_64_sync_handler+0xcc/0xe4 [ 74.685157][ T4904] el0t_64_sync+0x1a0/0x1a4 [ 74.685846][ T4904] irq event stamp: 79254 [ 74.686501][ T4904] hardirqs last enabled at (79253): [] __up_console_sem+0xb4/0xfc [ 74.687970][ T4904] hardirqs last disabled at (79254): [] el1_dbg+0x24/0x80 [ 74.689469][ T4904] softirqs last enabled at (79220): [] handle_softirqs+0xa40/0xbe4 [ 74.691140][ T4904] softirqs last disabled at (79203): [] __irq_exit_rcu+0x240/0x43c [ 74.692661][ T4904] ---[ end trace d8aa63e12cf4deb6 ]--- [ 74.695155][ T4904] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 74.696861][ T4904] BTRFS info (device loop0): forced readonly [ 74.838918][ T4941] loop0: detected capacity change from 0 to 32768 [ 74.881245][ T4941] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.17 (4941) [ 74.885717][ T4941] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 74.887153][ T4941] BTRFS info (device loop0): using free space tree [ 74.888323][ T4941] BTRFS info (device loop0): has skinny extents [ 74.896578][ T4941] BTRFS info (device loop0): enabling ssd optimizations [ 74.903507][ T4941] FAULT_INJECTION: forcing a failure. [ 74.903507][ T4941] name failslab, interval 1, probability 0, space 0, times 0 [ 74.906400][ T4941] CPU: 1 PID: 4941 Comm: syz.0.17 Tainted: G W syzkaller #0 [ 74.907824][ T4941] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 74.909414][ T4941] Call trace: [ 74.909913][ T4941] dump_backtrace+0x0/0x458 [ 74.910610][ T4941] show_stack+0x2c/0x3c [ 74.911231][ T4941] __dump_stack+0x30/0x40 [ 74.911872][ T4941] dump_stack_lvl+0xf4/0x15c [ 74.912612][ T4941] dump_stack+0x1c/0x5c [ 74.913314][ T4941] should_fail+0x3bc/0x514 [ 74.914037][ T4941] __should_failslab+0xbc/0x10c [ 74.914890][ T4941] should_failslab+0x10/0x28 [ 74.915606][ T4941] slab_pre_alloc_hook+0x64/0xe8 [ 74.916392][ T4941] kmem_cache_alloc+0x94/0x3d4 [ 74.917187][ T4941] btrfs_alloc_path+0x5c/0x68 [ 74.917914][ T4941] __btrfs_free_extent+0x1a8/0x1abc [ 74.918673][ T4941] __btrfs_run_delayed_refs+0xbf0/0x348c [ 74.919548][ T4941] btrfs_run_delayed_refs+0x124/0x458 [ 74.920434][ T4941] btrfs_commit_transaction+0x1e0/0x3078 [ 74.921345][ T4941] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 74.922248][ T4941] btrfs_ioctl+0x50c/0xa8c [ 74.922943][ T4941] __arm64_sys_ioctl+0x14c/0x1c8 [ 74.923770][ T4941] invoke_syscall+0x98/0x2b0 [ 74.924510][ T4941] el0_svc_common+0x138/0x258 [ 74.925253][ T4941] do_el0_svc+0x58/0x13c [ 74.926010][ T4941] el0_svc+0x78/0x1d0 [ 74.926664][ T4941] el0t_64_sync_handler+0xcc/0xe4 [ 74.927460][ T4941] el0t_64_sync+0x1a0/0x1a4 [ 74.928353][ T4941] BTRFS error (device loop0): failed to run delayed ref for logical 5255168 num_bytes 4096 type 176 action 2 ref_mod 1: -12 [ 74.930415][ T4941] ------------[ cut here ]------------ [ 74.931462][ T4941] WARNING: CPU: 1 PID: 4941 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 74.932981][ T4941] Modules linked in: [ 74.933631][ T4941] CPU: 1 PID: 4941 Comm: syz.0.17 Tainted: G W syzkaller #0 [ 74.935090][ T4941] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 74.936817][ T4941] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 74.938076][ T4941] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 74.939005][ T4941] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 74.940042][ T4941] sp : ffff8000200c77d0 [ 74.940716][ T4941] x29: ffff8000200c77e0 x28: ffff0000d5998000 x27: dfff800000000000 [ 74.942049][ T4941] x26: ffff0000d5998024 x25: ffff0000d1c9c000 x24: 1fffe0001bdcc44d [ 74.943334][ T4941] x23: 1fffe0001bdcc44d x22: ffff0000dee62268 x21: 00000000fffffff4 [ 74.944647][ T4941] x20: 0000000000000051 x19: ffff0000dee62210 x18: 0000000000000001 [ 74.946116][ T4941] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 74.947443][ T4941] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 74.948800][ T4941] x11: 0000000000000000 x10: 0000000000000000 x9 : 41c61b1f9fabb200 [ 74.950089][ T4941] x8 : 41c61b1f9fabb200 x7 : 0000000000000001 x6 : 0000000000000001 [ 74.951436][ T4941] x5 : ffff8000200c70d8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 74.952729][ T4941] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 74.954034][ T4941] Call trace: [ 74.954547][ T4941] btrfs_run_delayed_refs+0x3e4/0x458 [ 74.955364][ T4941] btrfs_commit_transaction+0x1e0/0x3078 [ 74.956244][ T4941] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 74.957092][ T4941] btrfs_ioctl+0x50c/0xa8c [ 74.957759][ T4941] __arm64_sys_ioctl+0x14c/0x1c8 [ 74.958516][ T4941] invoke_syscall+0x98/0x2b0 [ 74.959194][ T4941] el0_svc_common+0x138/0x258 [ 74.960006][ T4941] do_el0_svc+0x58/0x13c [ 74.960694][ T4941] el0_svc+0x78/0x1d0 [ 74.961330][ T4941] el0t_64_sync_handler+0xcc/0xe4 [ 74.962161][ T4941] el0t_64_sync+0x1a0/0x1a4 [ 74.962868][ T4941] irq event stamp: 79454 [ 74.963553][ T4941] hardirqs last enabled at (79453): [] __up_console_sem+0xb4/0xfc [ 74.965096][ T4941] hardirqs last disabled at (79454): [] el1_dbg+0x24/0x80 [ 74.966294][ T4941] softirqs last enabled at (79422): [] handle_softirqs+0xa40/0xbe4 [ 74.967815][ T4941] softirqs last disabled at (79393): [] __irq_exit_rcu+0x240/0x43c [ 74.969277][ T4941] ---[ end trace d8aa63e12cf4deb7 ]--- [ 74.970510][ T4941] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 74.972083][ T4941] BTRFS info (device loop0): forced readonly [ 75.130198][ T4963] loop0: detected capacity change from 0 to 32768 [ 75.179405][ T4963] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.18 (4963) [ 75.183467][ T4963] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 75.184846][ T4963] BTRFS info (device loop0): using free space tree [ 75.186312][ T4963] BTRFS info (device loop0): has skinny extents [ 75.195114][ T4963] BTRFS info (device loop0): enabling ssd optimizations [ 75.201770][ T4963] FAULT_INJECTION: forcing a failure. [ 75.201770][ T4963] name failslab, interval 1, probability 0, space 0, times 0 [ 75.204003][ T4963] CPU: 1 PID: 4963 Comm: syz.0.18 Tainted: G W syzkaller #0 [ 75.205503][ T4963] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 75.207134][ T4963] Call trace: [ 75.207682][ T4963] dump_backtrace+0x0/0x458 [ 75.208429][ T4963] show_stack+0x2c/0x3c [ 75.209105][ T4963] __dump_stack+0x30/0x40 [ 75.209842][ T4963] dump_stack_lvl+0xf4/0x15c [ 75.210600][ T4963] dump_stack+0x1c/0x5c [ 75.211234][ T4963] should_fail+0x3bc/0x514 [ 75.212029][ T4963] __should_failslab+0xbc/0x10c [ 75.212819][ T4963] should_failslab+0x10/0x28 [ 75.213570][ T4963] slab_pre_alloc_hook+0x64/0xe8 [ 75.214418][ T4963] kmem_cache_alloc+0x94/0x3d4 [ 75.215237][ T4963] btrfs_alloc_path+0x5c/0x68 [ 75.216000][ T4963] __btrfs_free_extent+0x1a8/0x1abc [ 75.216849][ T4963] __btrfs_run_delayed_refs+0xbf0/0x348c [ 75.217737][ T4963] btrfs_run_delayed_refs+0x124/0x458 [ 75.218670][ T4963] btrfs_commit_transaction+0x1e0/0x3078 [ 75.219584][ T4963] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 75.220427][ T4963] btrfs_ioctl+0x50c/0xa8c [ 75.221122][ T4963] __arm64_sys_ioctl+0x14c/0x1c8 [ 75.221913][ T4963] invoke_syscall+0x98/0x2b0 [ 75.222648][ T4963] el0_svc_common+0x138/0x258 [ 75.223372][ T4963] do_el0_svc+0x58/0x13c [ 75.224060][ T4963] el0_svc+0x78/0x1d0 [ 75.224725][ T4963] el0t_64_sync_handler+0xcc/0xe4 [ 75.225530][ T4963] el0t_64_sync+0x1a0/0x1a4 [ 75.228672][ T4963] BTRFS error (device loop0): failed to run delayed ref for logical 5255168 num_bytes 4096 type 176 action 2 ref_mod 1: -12 [ 75.230743][ T4963] ------------[ cut here ]------------ [ 75.231717][ T4963] WARNING: CPU: 0 PID: 4963 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 75.233317][ T4963] Modules linked in: [ 75.233983][ T4963] CPU: 0 PID: 4963 Comm: syz.0.18 Tainted: G W syzkaller #0 [ 75.235247][ T4963] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 75.236780][ T4963] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 75.238027][ T4963] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 75.238914][ T4963] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 75.239856][ T4963] sp : ffff8000200c77d0 [ 75.240537][ T4963] x29: ffff8000200c77e0 x28: ffff0000c1600000 x27: dfff800000000000 [ 75.241825][ T4963] x26: ffff0000c1600024 x25: ffff0000d83d8000 x24: 1fffe0001bdcc479 [ 75.243167][ T4963] x23: 1fffe0001bdcc479 x22: ffff0000dee623c8 x21: 00000000fffffff4 [ 75.244408][ T4963] x20: 0000000000000051 x19: ffff0000dee62370 x18: 0000000000000001 [ 75.245719][ T4963] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 75.247123][ T4963] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 75.248419][ T4963] x11: 0000000000000000 x10: 0000000000000000 x9 : ec5c3de97304e800 [ 75.249714][ T4963] x8 : ec5c3de97304e800 x7 : 0000000000000001 x6 : 0000000000000001 [ 75.251028][ T4963] x5 : ffff8000200c70d8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 75.252358][ T4963] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 75.253667][ T4963] Call trace: [ 75.254192][ T4963] btrfs_run_delayed_refs+0x3e4/0x458 [ 75.255159][ T4963] btrfs_commit_transaction+0x1e0/0x3078 [ 75.256161][ T4963] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 75.257044][ T4963] btrfs_ioctl+0x50c/0xa8c [ 75.257810][ T4963] __arm64_sys_ioctl+0x14c/0x1c8 [ 75.258581][ T4963] invoke_syscall+0x98/0x2b0 [ 75.259329][ T4963] el0_svc_common+0x138/0x258 [ 75.260137][ T4963] do_el0_svc+0x58/0x13c [ 75.260872][ T4963] el0_svc+0x78/0x1d0 [ 75.261566][ T4963] el0t_64_sync_handler+0xcc/0xe4 [ 75.262353][ T4963] el0t_64_sync+0x1a0/0x1a4 [ 75.263099][ T4963] irq event stamp: 78930 [ 75.263719][ T4963] hardirqs last enabled at (78929): [] __up_console_sem+0xb4/0xfc [ 75.265231][ T4963] hardirqs last disabled at (78930): [] el1_dbg+0x24/0x80 [ 75.266664][ T4963] softirqs last enabled at (78896): [] handle_softirqs+0xa40/0xbe4 [ 75.268189][ T4963] softirqs last disabled at (78851): [] __irq_exit_rcu+0x240/0x43c [ 75.269681][ T4963] ---[ end trace d8aa63e12cf4deb8 ]--- [ 75.271139][ T4963] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 75.272599][ T4963] BTRFS info (device loop0): forced readonly [ 75.360719][ T1643] device hsr_slave_0 left promiscuous mode [ 75.405776][ T1643] device hsr_slave_1 left promiscuous mode [ 75.418576][ T4986] loop0: detected capacity change from 0 to 32768 [ 75.426331][ T4986] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.19 (4986) [ 75.430684][ T4986] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 75.432159][ T4986] BTRFS info (device loop0): using free space tree [ 75.433206][ T4986] BTRFS info (device loop0): has skinny extents [ 75.440521][ T4986] BTRFS info (device loop0): enabling ssd optimizations [ 75.443906][ T4986] FAULT_INJECTION: forcing a failure. [ 75.443906][ T4986] name failslab, interval 1, probability 0, space 0, times 0 [ 75.446285][ T4986] CPU: 0 PID: 4986 Comm: syz.0.19 Tainted: G W syzkaller #0 [ 75.447614][ T4986] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 75.449233][ T4986] Call trace: [ 75.449722][ T4986] dump_backtrace+0x0/0x458 [ 75.450394][ T4986] show_stack+0x2c/0x3c [ 75.451057][ T4986] __dump_stack+0x30/0x40 [ 75.451723][ T4986] dump_stack_lvl+0xf4/0x15c [ 75.452445][ T4986] dump_stack+0x1c/0x5c [ 75.453092][ T4986] should_fail+0x3bc/0x514 [ 75.453822][ T4986] __should_failslab+0xbc/0x10c [ 75.454534][ T4986] should_failslab+0x10/0x28 [ 75.455217][ T4986] slab_pre_alloc_hook+0x64/0xe8 [ 75.456017][ T4986] kmem_cache_alloc+0x94/0x3d4 [ 75.456801][ T4986] start_transaction+0x4d0/0x13ec [ 75.457563][ T4986] btrfs_start_transaction+0x34/0x44 [ 75.458461][ T4986] btrfs_ioctl_set_fslabel+0x2bc/0x3d0 [ 75.459341][ T4986] btrfs_ioctl+0x50c/0xa8c [ 75.460063][ T4986] __arm64_sys_ioctl+0x14c/0x1c8 [ 75.460901][ T4986] invoke_syscall+0x98/0x2b0 [ 75.461670][ T4986] el0_svc_common+0x138/0x258 [ 75.462474][ T4986] do_el0_svc+0x58/0x13c [ 75.463172][ T4986] el0_svc+0x78/0x1d0 [ 75.463869][ T4986] el0t_64_sync_handler+0xcc/0xe4 [ 75.464698][ T4986] el0t_64_sync+0x1a0/0x1a4 [ 75.477092][ T1643] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 75.478349][ T1643] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 75.479993][ T1643] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 75.481182][ T1643] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 75.487010][ T1643] device bridge_slave_1 left promiscuous mode [ 75.488061][ T1643] bridge0: port 2(bridge_slave_1) entered disabled state [ 75.526076][ T1643] device bridge_slave_0 left promiscuous mode [ 75.527209][ T1643] bridge0: port 1(bridge_slave_0) entered disabled state [ 75.631151][ T5008] loop0: detected capacity change from 0 to 32768 [ 75.645796][ T1643] device veth1_macvtap left promiscuous mode [ 75.646766][ T1643] device veth0_macvtap left promiscuous mode [ 75.647783][ T1643] device veth1_vlan left promiscuous mode [ 75.648725][ T1643] device veth0_vlan left promiscuous mode [ 75.666606][ T5008] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.20 (5008) [ 75.719747][ T5008] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 75.721181][ T5008] BTRFS info (device loop0): using free space tree [ 75.722327][ T5008] BTRFS info (device loop0): has skinny extents [ 75.753123][ T1643] team0 (unregistering): Port device team_slave_1 removed [ 75.759618][ T1643] team0 (unregistering): Port device team_slave_0 removed [ 75.764334][ T1643] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 75.768103][ T5008] BTRFS info (device loop0): enabling ssd optimizations [ 75.771224][ T5008] FAULT_INJECTION: forcing a failure. [ 75.771224][ T5008] name failslab, interval 1, probability 0, space 0, times 0 [ 75.773376][ T5008] CPU: 1 PID: 5008 Comm: syz.0.20 Tainted: G W syzkaller #0 [ 75.774760][ T5008] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 75.776317][ T5008] Call trace: [ 75.776855][ T5008] dump_backtrace+0x0/0x458 [ 75.777586][ T5008] show_stack+0x2c/0x3c [ 75.778243][ T5008] __dump_stack+0x30/0x40 [ 75.779026][ T5008] dump_stack_lvl+0xf4/0x15c [ 75.779759][ T5008] dump_stack+0x1c/0x5c [ 75.780432][ T5008] should_fail+0x3bc/0x514 [ 75.781137][ T5008] __should_failslab+0xbc/0x10c [ 75.781925][ T5008] should_failslab+0x10/0x28 [ 75.782623][ T5008] slab_pre_alloc_hook+0x64/0xe8 [ 75.783384][ T5008] kmem_cache_alloc+0x94/0x3d4 [ 75.784127][ T5008] btrfs_alloc_path+0x5c/0x68 [ 75.784880][ T5008] __btrfs_free_extent+0x1a8/0x1abc [ 75.785752][ T5008] __btrfs_run_delayed_refs+0xbf0/0x348c [ 75.786668][ T5008] btrfs_run_delayed_refs+0x124/0x458 [ 75.787608][ T5008] btrfs_commit_transaction+0x1e0/0x3078 [ 75.788566][ T5008] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 75.789478][ T5008] btrfs_ioctl+0x50c/0xa8c [ 75.790228][ T5008] __arm64_sys_ioctl+0x14c/0x1c8 [ 75.791011][ T5008] invoke_syscall+0x98/0x2b0 [ 75.791715][ T5008] el0_svc_common+0x138/0x258 [ 75.792518][ T5008] do_el0_svc+0x58/0x13c [ 75.793207][ T5008] el0_svc+0x78/0x1d0 [ 75.793827][ T5008] el0t_64_sync_handler+0xcc/0xe4 [ 75.794729][ T5008] el0t_64_sync+0x1a0/0x1a4 [ 75.799937][ T5008] BTRFS error (device loop0): failed to run delayed ref for logical 5255168 num_bytes 4096 type 176 action 2 ref_mod 1: -12 [ 75.802139][ T5008] ------------[ cut here ]------------ [ 75.803119][ T5008] WARNING: CPU: 1 PID: 5008 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 75.804594][ T5008] Modules linked in: [ 75.805213][ T5008] CPU: 1 PID: 5008 Comm: syz.0.20 Tainted: G W syzkaller #0 [ 75.806637][ T5008] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 75.808360][ T5008] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 75.809690][ T5008] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 75.810631][ T5008] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 75.811595][ T5008] sp : ffff8000205777d0 [ 75.812276][ T5008] x29: ffff8000205777e0 x28: ffff0000d0224000 x27: dfff800000000000 [ 75.813611][ T5008] x26: ffff0000d0224024 x25: ffff0000d2b14000 x24: 1fffe0001bdcc4bb [ 75.814913][ T5008] x23: 1fffe0001bdcc4bb x22: ffff0000dee625d8 x21: 00000000fffffff4 [ 75.816246][ T5008] x20: 0000000000000051 x19: ffff0000dee62580 x18: 0000000000000001 [ 75.817645][ T5008] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 75.819034][ T5008] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 75.820354][ T5008] x11: 0000000000000000 x10: 0000000000000000 x9 : c1f4dc1a25bfae00 [ 75.821628][ T5008] x8 : c1f4dc1a25bfae00 x7 : 0000000000000001 x6 : 0000000000000001 [ 75.822874][ T5008] x5 : ffff8000205770d8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 75.824143][ T5008] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 75.825453][ T5008] Call trace: [ 75.826002][ T5008] btrfs_run_delayed_refs+0x3e4/0x458 [ 75.826960][ T5008] btrfs_commit_transaction+0x1e0/0x3078 [ 75.827905][ T5008] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 75.828909][ T5008] btrfs_ioctl+0x50c/0xa8c [ 75.829750][ T5008] __arm64_sys_ioctl+0x14c/0x1c8 [ 75.830561][ T5008] invoke_syscall+0x98/0x2b0 [ 75.831315][ T5008] el0_svc_common+0x138/0x258 [ 75.832068][ T5008] do_el0_svc+0x58/0x13c [ 75.832706][ T5008] el0_svc+0x78/0x1d0 [ 75.833373][ T5008] el0t_64_sync_handler+0xcc/0xe4 [ 75.834240][ T5008] el0t_64_sync+0x1a0/0x1a4 [ 75.834936][ T5008] irq event stamp: 79028 [ 75.835587][ T5008] hardirqs last enabled at (79027): [] __up_console_sem+0xb4/0xfc [ 75.837105][ T5008] hardirqs last disabled at (79028): [] el1_dbg+0x24/0x80 [ 75.838461][ T5008] softirqs last enabled at (78992): [] handle_softirqs+0xa40/0xbe4 [ 75.840061][ T5008] softirqs last disabled at (78943): [] __irq_exit_rcu+0x240/0x43c [ 75.841743][ T5008] ---[ end trace d8aa63e12cf4deb9 ]--- [ 75.849879][ T1643] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 75.850136][ T5008] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 75.852803][ T5008] BTRFS info (device loop0): forced readonly [ 75.929771][ T1643] bond0 (unregistering): Released all slaves [ 76.050500][ T5031] loop0: detected capacity change from 0 to 32768 [ 76.089819][ T5031] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.21 (5031) [ 76.093277][ T5031] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 76.095370][ T5031] BTRFS info (device loop0): using free space tree [ 76.096505][ T5031] BTRFS info (device loop0): has skinny extents [ 76.103470][ T5031] BTRFS info (device loop0): enabling ssd optimizations [ 76.107725][ T5031] FAULT_INJECTION: forcing a failure. [ 76.107725][ T5031] name failslab, interval 1, probability 0, space 0, times 0 [ 76.109953][ T5031] CPU: 1 PID: 5031 Comm: syz.0.21 Tainted: G W syzkaller #0 [ 76.111482][ T5031] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 76.113040][ T5031] Call trace: [ 76.113562][ T5031] dump_backtrace+0x0/0x458 [ 76.114257][ T5031] show_stack+0x2c/0x3c [ 76.114882][ T5031] __dump_stack+0x30/0x40 [ 76.115598][ T5031] dump_stack_lvl+0xf4/0x15c [ 76.116350][ T5031] dump_stack+0x1c/0x5c [ 76.117051][ T5031] should_fail+0x3bc/0x514 [ 76.117773][ T5031] __should_failslab+0xbc/0x10c [ 76.118590][ T5031] should_failslab+0x10/0x28 [ 76.119393][ T5031] slab_pre_alloc_hook+0x64/0xe8 [ 76.120282][ T5031] kmem_cache_alloc+0x94/0x3d4 [ 76.121105][ T5031] start_transaction+0x4d0/0x13ec [ 76.121925][ T5031] btrfs_start_transaction+0x34/0x44 [ 76.122797][ T5031] btrfs_ioctl_set_fslabel+0x2bc/0x3d0 [ 76.123681][ T5031] btrfs_ioctl+0x50c/0xa8c [ 76.124404][ T5031] __arm64_sys_ioctl+0x14c/0x1c8 [ 76.125275][ T5031] invoke_syscall+0x98/0x2b0 [ 76.126075][ T5031] el0_svc_common+0x138/0x258 [ 76.126909][ T5031] do_el0_svc+0x58/0x13c [ 76.127628][ T5031] el0_svc+0x78/0x1d0 [ 76.128328][ T5031] el0t_64_sync_handler+0xcc/0xe4 [ 76.129192][ T5031] el0t_64_sync+0x1a0/0x1a4 [ 76.180755][ T4882] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 10 /dev/loop0 scanned by udevd (4882) [ 76.265703][ T4130] Bluetooth: hci0: command 0x0419 tx timeout [ 76.282844][ T5052] loop0: detected capacity change from 0 to 32768 [ 76.317697][ T5052] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 76.319102][ T5052] BTRFS info (device loop0): using free space tree [ 76.320107][ T5052] BTRFS info (device loop0): has skinny extents [ 76.329279][ T5052] BTRFS info (device loop0): enabling ssd optimizations [ 76.334035][ T5052] FAULT_INJECTION: forcing a failure. [ 76.334035][ T5052] name failslab, interval 1, probability 0, space 0, times 0 [ 76.337614][ T5052] CPU: 1 PID: 5052 Comm: syz.0.22 Tainted: G W syzkaller #0 [ 76.338910][ T5052] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 76.340580][ T5052] Call trace: [ 76.341150][ T5052] dump_backtrace+0x0/0x458 [ 76.341903][ T5052] show_stack+0x2c/0x3c [ 76.342567][ T5052] __dump_stack+0x30/0x40 [ 76.343262][ T5052] dump_stack_lvl+0xf4/0x15c [ 76.343982][ T5052] dump_stack+0x1c/0x5c [ 76.344613][ T5052] should_fail+0x3bc/0x514 [ 76.345314][ T5052] __should_failslab+0xbc/0x10c [ 76.346146][ T5052] should_failslab+0x10/0x28 [ 76.346889][ T5052] slab_pre_alloc_hook+0x64/0xe8 [ 76.347733][ T5052] kmem_cache_alloc+0x94/0x3d4 [ 76.348504][ T5052] btrfs_alloc_path+0x5c/0x68 [ 76.349259][ T5052] __btrfs_run_delayed_refs+0xe70/0x348c [ 76.350199][ T5052] btrfs_run_delayed_refs+0x124/0x458 [ 76.351123][ T5052] btrfs_commit_transaction+0x1e0/0x3078 [ 76.352089][ T5052] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 76.353028][ T5052] btrfs_ioctl+0x50c/0xa8c [ 76.353727][ T5052] __arm64_sys_ioctl+0x14c/0x1c8 [ 76.354500][ T5052] invoke_syscall+0x98/0x2b0 [ 76.355196][ T5052] el0_svc_common+0x138/0x258 [ 76.355946][ T5052] do_el0_svc+0x58/0x13c [ 76.356652][ T5052] el0_svc+0x78/0x1d0 [ 76.357258][ T5052] el0t_64_sync_handler+0xcc/0xe4 [ 76.358091][ T5052] el0t_64_sync+0x1a0/0x1a4 [ 76.360666][ T5052] BTRFS error (device loop0): failed to run delayed ref for logical 5242880 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 76.362717][ T5052] ------------[ cut here ]------------ [ 76.363628][ T5052] WARNING: CPU: 1 PID: 5052 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 76.365254][ T5052] Modules linked in: [ 76.365904][ T5052] CPU: 1 PID: 5052 Comm: syz.0.22 Tainted: G W syzkaller #0 [ 76.367264][ T5052] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 76.368897][ T5052] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 76.370217][ T5052] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 76.371128][ T5052] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 76.372066][ T5052] sp : ffff8000207b77d0 [ 76.372760][ T5052] x29: ffff8000207b77e0 x28: ffff0000d0774000 x27: dfff800000000000 [ 76.374109][ T5052] x26: ffff0000d0774024 x25: ffff0000e7354000 x24: 1fffe0001bdcc529 [ 76.375413][ T5052] x23: 1fffe0001bdcc529 x22: ffff0000dee62948 x21: 00000000fffffff4 [ 76.376680][ T5052] x20: 0000000000000051 x19: ffff0000dee628f0 x18: 0000000000000001 [ 76.377951][ T5052] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 76.379257][ T5052] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 76.380667][ T5052] x11: 0000000000000000 x10: 0000000000000000 x9 : 5d3d14c4d659ca00 [ 76.382052][ T5052] x8 : 5d3d14c4d659ca00 x7 : 0000000000000001 x6 : 0000000000000001 [ 76.383349][ T5052] x5 : ffff8000207b70d8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 76.384654][ T5052] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 76.386061][ T5052] Call trace: [ 76.386564][ T5052] btrfs_run_delayed_refs+0x3e4/0x458 [ 76.387492][ T5052] btrfs_commit_transaction+0x1e0/0x3078 [ 76.388347][ T5052] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 76.389204][ T5052] btrfs_ioctl+0x50c/0xa8c [ 76.389899][ T5052] __arm64_sys_ioctl+0x14c/0x1c8 [ 76.390757][ T5052] invoke_syscall+0x98/0x2b0 [ 76.391560][ T5052] el0_svc_common+0x138/0x258 [ 76.392417][ T5052] do_el0_svc+0x58/0x13c [ 76.393150][ T5052] el0_svc+0x78/0x1d0 [ 76.393846][ T5052] el0t_64_sync_handler+0xcc/0xe4 [ 76.394687][ T5052] el0t_64_sync+0x1a0/0x1a4 [ 76.395448][ T5052] irq event stamp: 78890 [ 76.396143][ T5052] hardirqs last enabled at (78889): [] __up_console_sem+0xb4/0xfc [ 76.397719][ T5052] hardirqs last disabled at (78890): [] el1_dbg+0x24/0x80 [ 76.399043][ T5052] softirqs last enabled at (78856): [] handle_softirqs+0xa40/0xbe4 [ 76.400579][ T5052] softirqs last disabled at (78811): [] __irq_exit_rcu+0x240/0x43c [ 76.402215][ T5052] ---[ end trace d8aa63e12cf4deba ]--- [ 76.405214][ T5052] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 76.406864][ T5052] BTRFS info (device loop0): forced readonly [ 76.547822][ T5075] loop0: detected capacity change from 0 to 32768 [ 76.555516][ T5075] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.23 (5075) [ 76.559969][ T5075] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 76.561430][ T5075] BTRFS info (device loop0): using free space tree [ 76.562542][ T5075] BTRFS info (device loop0): has skinny extents [ 76.573719][ T5075] BTRFS info (device loop0): enabling ssd optimizations [ 76.578084][ T5075] FAULT_INJECTION: forcing a failure. [ 76.578084][ T5075] name failslab, interval 1, probability 0, space 0, times 0 [ 76.580144][ T5075] CPU: 0 PID: 5075 Comm: syz.0.23 Tainted: G W syzkaller #0 [ 76.581455][ T5075] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 76.583169][ T5075] Call trace: [ 76.583706][ T5075] dump_backtrace+0x0/0x458 [ 76.584453][ T5075] show_stack+0x2c/0x3c [ 76.585158][ T5075] __dump_stack+0x30/0x40 [ 76.585892][ T5075] dump_stack_lvl+0xf4/0x15c [ 76.586647][ T5075] dump_stack+0x1c/0x5c [ 76.587372][ T5075] should_fail+0x3bc/0x514 [ 76.588074][ T5075] __should_failslab+0xbc/0x10c [ 76.588873][ T5075] should_failslab+0x10/0x28 [ 76.589628][ T5075] slab_pre_alloc_hook+0x64/0xe8 [ 76.590407][ T5075] kmem_cache_alloc+0x94/0x3d4 [ 76.591177][ T5075] btrfs_alloc_path+0x5c/0x68 [ 76.591937][ T5075] __btrfs_run_delayed_refs+0xe70/0x348c [ 76.592794][ T5075] btrfs_run_delayed_refs+0x124/0x458 [ 76.593656][ T5075] btrfs_commit_transaction+0x1e0/0x3078 [ 76.594558][ T5075] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 76.595408][ T5075] btrfs_ioctl+0x50c/0xa8c [ 76.596126][ T5075] __arm64_sys_ioctl+0x14c/0x1c8 [ 76.596916][ T5075] invoke_syscall+0x98/0x2b0 [ 76.597692][ T5075] el0_svc_common+0x138/0x258 [ 76.598404][ T5075] do_el0_svc+0x58/0x13c [ 76.599096][ T5075] el0_svc+0x78/0x1d0 [ 76.599755][ T5075] el0t_64_sync_handler+0xcc/0xe4 [ 76.600568][ T5075] el0t_64_sync+0x1a0/0x1a4 [ 76.603382][ T5075] BTRFS error (device loop0): failed to run delayed ref for logical 5242880 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 76.605341][ T5075] ------------[ cut here ]------------ [ 76.606928][ T5075] WARNING: CPU: 0 PID: 5075 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 76.608564][ T5075] Modules linked in: [ 76.609298][ T5075] CPU: 0 PID: 5075 Comm: syz.0.23 Tainted: G W syzkaller #0 [ 76.610861][ T5075] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 76.612563][ T5075] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 76.613878][ T5075] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 76.614890][ T5075] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 76.615811][ T5075] sp : ffff8000206677d0 [ 76.616487][ T5075] x29: ffff8000206677e0 x28: ffff0000d05c4000 x27: dfff800000000000 [ 76.617784][ T5075] x26: ffff0000d05c4024 x25: ffff0000eb89c000 x24: 1fffe0001bdb7a79 [ 76.619129][ T5075] x23: 1fffe0001bdb7a79 x22: ffff0000dedbd3c8 x21: 00000000fffffff4 [ 76.620418][ T5075] x20: 0000000000000051 x19: ffff0000dedbd370 x18: 0000000000000001 [ 76.621691][ T5075] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 76.622970][ T5075] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 76.624252][ T5075] x11: 0000000000000000 x10: 0000000000000000 x9 : eb5688bf5b356a00 [ 76.625620][ T5075] x8 : eb5688bf5b356a00 x7 : 0000000000000001 x6 : 0000000000000001 [ 76.627036][ T5075] x5 : ffff8000206670d8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 76.628397][ T5075] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 76.629751][ T5075] Call trace: [ 76.630278][ T5075] btrfs_run_delayed_refs+0x3e4/0x458 [ 76.631148][ T5075] btrfs_commit_transaction+0x1e0/0x3078 [ 76.631990][ T5075] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 76.632898][ T5075] btrfs_ioctl+0x50c/0xa8c [ 76.633618][ T5075] __arm64_sys_ioctl+0x14c/0x1c8 [ 76.634384][ T5075] invoke_syscall+0x98/0x2b0 [ 76.635103][ T5075] el0_svc_common+0x138/0x258 [ 76.635831][ T5075] do_el0_svc+0x58/0x13c [ 76.636529][ T5075] el0_svc+0x78/0x1d0 [ 76.637211][ T5075] el0t_64_sync_handler+0xcc/0xe4 [ 76.638102][ T5075] el0t_64_sync+0x1a0/0x1a4 [ 76.638916][ T5075] irq event stamp: 78928 [ 76.639632][ T5075] hardirqs last enabled at (78927): [] __up_console_sem+0xb4/0xfc [ 76.641315][ T5075] hardirqs last disabled at (78928): [] el1_dbg+0x24/0x80 [ 76.642725][ T5075] softirqs last enabled at (78916): [] handle_softirqs+0xa40/0xbe4 [ 76.644305][ T5075] softirqs last disabled at (78883): [] __irq_exit_rcu+0x240/0x43c [ 76.645872][ T5075] ---[ end trace d8aa63e12cf4debb ]--- [ 76.649525][ T5075] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 76.651082][ T5075] BTRFS info (device loop0): forced readonly [ 76.818209][ T5097] loop0: detected capacity change from 0 to 32768 [ 76.867767][ T5097] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.24 (5097) [ 76.870969][ T5097] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 76.873059][ T5097] BTRFS info (device loop0): using free space tree [ 76.874080][ T5097] BTRFS info (device loop0): has skinny extents [ 76.881577][ T5097] BTRFS info (device loop0): enabling ssd optimizations [ 76.884819][ T5097] FAULT_INJECTION: forcing a failure. [ 76.884819][ T5097] name failslab, interval 1, probability 0, space 0, times 0 [ 76.887226][ T5097] CPU: 0 PID: 5097 Comm: syz.0.24 Tainted: G W syzkaller #0 [ 76.888654][ T5097] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 76.890321][ T5097] Call trace: [ 76.890813][ T5097] dump_backtrace+0x0/0x458 [ 76.891516][ T5097] show_stack+0x2c/0x3c [ 76.892198][ T5097] __dump_stack+0x30/0x40 [ 76.892902][ T5097] dump_stack_lvl+0xf4/0x15c [ 76.893585][ T5097] dump_stack+0x1c/0x5c [ 76.894197][ T5097] should_fail+0x3bc/0x514 [ 76.894889][ T5097] __should_failslab+0xbc/0x10c [ 76.895666][ T5097] should_failslab+0x10/0x28 [ 76.896440][ T5097] slab_pre_alloc_hook+0x64/0xe8 [ 76.897196][ T5097] kmem_cache_alloc+0x94/0x3d4 [ 76.897959][ T5097] btrfs_alloc_path+0x5c/0x68 [ 76.898662][ T5097] __btrfs_run_delayed_refs+0xe70/0x348c [ 76.899580][ T5097] btrfs_run_delayed_refs+0x124/0x458 [ 76.900340][ T5097] btrfs_commit_transaction+0x1e0/0x3078 [ 76.901304][ T5097] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 76.902231][ T5097] btrfs_ioctl+0x50c/0xa8c [ 76.902950][ T5097] __arm64_sys_ioctl+0x14c/0x1c8 [ 76.903793][ T5097] invoke_syscall+0x98/0x2b0 [ 76.904571][ T5097] el0_svc_common+0x138/0x258 [ 76.905304][ T5097] do_el0_svc+0x58/0x13c [ 76.905973][ T5097] el0_svc+0x78/0x1d0 [ 76.906613][ T5097] el0t_64_sync_handler+0xcc/0xe4 [ 76.907444][ T5097] el0t_64_sync+0x1a0/0x1a4 [ 76.908294][ T5097] BTRFS error (device loop0): failed to run delayed ref for logical 5242880 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 76.910657][ T5097] ------------[ cut here ]------------ [ 76.911599][ T5097] WARNING: CPU: 0 PID: 5097 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 76.913175][ T5097] Modules linked in: [ 76.913821][ T5097] CPU: 0 PID: 5097 Comm: syz.0.24 Tainted: G W syzkaller #0 [ 76.915294][ T5097] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 76.916907][ T5097] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 76.918152][ T5097] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 76.919067][ T5097] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 76.919959][ T5097] sp : ffff800020a277d0 [ 76.920618][ T5097] x29: ffff800020a277e0 x28: ffff0000ccc6e000 x27: dfff800000000000 [ 76.921908][ T5097] x26: ffff0000ccc6e024 x25: ffff0000ca4a4000 x24: 1fffe0001bdb7aa5 [ 76.923167][ T5097] x23: 1fffe0001bdb7aa5 x22: ffff0000dedbd528 x21: 00000000fffffff4 [ 76.924455][ T5097] x20: 0000000000000051 x19: ffff0000dedbd4d0 x18: 0000000000000001 [ 76.925795][ T5097] x17: 0000000000000000 x16: ffff800008304ad4 x15: 00000000ffffffff [ 76.927188][ T5097] x14: 0000000000000001 x13: 1ffff00004144e18 x12: 0000000000ff0100 [ 76.928485][ T5097] x11: 0000000000000000 x10: 0000000000000000 x9 : 8acc14720f43c000 [ 76.929715][ T5097] x8 : 8acc14720f43c000 x7 : 0000000000000001 x6 : 0000000000000001 [ 76.930991][ T5097] x5 : ffff800020a270d8 x4 : ffff80001436f3e0 x3 : ffff800008304be4 [ 76.932269][ T5097] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 76.933554][ T5097] Call trace: [ 76.934104][ T5097] btrfs_run_delayed_refs+0x3e4/0x458 [ 76.934975][ T5097] btrfs_commit_transaction+0x1e0/0x3078 [ 76.935858][ T5097] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 76.936684][ T5097] btrfs_ioctl+0x50c/0xa8c [ 76.937417][ T5097] __arm64_sys_ioctl+0x14c/0x1c8 [ 76.938173][ T5097] invoke_syscall+0x98/0x2b0 [ 76.938900][ T5097] el0_svc_common+0x138/0x258 [ 76.939599][ T5097] do_el0_svc+0x58/0x13c [ 76.940277][ T5097] el0_svc+0x78/0x1d0 [ 76.940885][ T5097] el0t_64_sync_handler+0xcc/0xe4 [ 76.941718][ T5097] el0t_64_sync+0x1a0/0x1a4 [ 76.942434][ T5097] irq event stamp: 78660 [ 76.943155][ T5097] hardirqs last enabled at (78659): [] __up_console_sem+0xb4/0xfc [ 76.944633][ T5097] hardirqs last disabled at (78660): [] el1_dbg+0x24/0x80 [ 76.945975][ T5097] softirqs last enabled at (78626): [] handle_softirqs+0xa40/0xbe4 [ 76.947541][ T5097] softirqs last disabled at (78611): [] __irq_exit_rcu+0x240/0x43c [ 76.949077][ T5097] ---[ end trace d8aa63e12cf4debc ]--- [ 76.950614][ T5097] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 76.952055][ T5097] BTRFS info (device loop0): forced readonly [ 77.100040][ T5119] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.25 (5119) [ 77.103813][ T5119] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 77.105287][ T5119] BTRFS info (device loop0): using free space tree [ 77.106837][ T5119] BTRFS info (device loop0): has skinny extents [ 77.114269][ T5119] BTRFS info (device loop0): enabling ssd optimizations [ 77.124724][ T5119] FAULT_INJECTION: forcing a failure. [ 77.124724][ T5119] name failslab, interval 1, probability 0, space 0, times 0 [ 77.132856][ T5119] CPU: 0 PID: 5119 Comm: syz.0.25 Tainted: G W syzkaller #0 [ 77.134208][ T5119] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 77.135901][ T5119] Call trace: [ 77.136446][ T5119] dump_backtrace+0x0/0x458 [ 77.137199][ T5119] show_stack+0x2c/0x3c [ 77.137939][ T5119] __dump_stack+0x30/0x40 [ 77.138674][ T5119] dump_stack_lvl+0xf4/0x15c [ 77.139445][ T5119] dump_stack+0x1c/0x5c [ 77.140155][ T5119] should_fail+0x3bc/0x514 [ 77.140917][ T5119] __should_failslab+0xbc/0x10c [ 77.141702][ T5119] should_failslab+0x10/0x28 [ 77.142485][ T5119] slab_pre_alloc_hook+0x64/0xe8 [ 77.143261][ T5119] kmem_cache_alloc+0x94/0x3d4 [ 77.144014][ T5119] btrfs_alloc_path+0x5c/0x68 [ 77.144791][ T5119] __btrfs_run_delayed_refs+0xe70/0x348c [ 77.145755][ T5119] btrfs_run_delayed_refs+0x124/0x458 [ 77.146631][ T5119] btrfs_commit_transaction+0x1e0/0x3078 [ 77.147544][ T5119] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 77.148463][ T5119] btrfs_ioctl+0x50c/0xa8c [ 77.149212][ T5119] __arm64_sys_ioctl+0x14c/0x1c8 [ 77.150035][ T5119] invoke_syscall+0x98/0x2b0 [ 77.150814][ T5119] el0_svc_common+0x138/0x258 [ 77.151572][ T5119] do_el0_svc+0x58/0x13c [ 77.152262][ T5119] el0_svc+0x78/0x1d0 [ 77.152965][ T5119] el0t_64_sync_handler+0xcc/0xe4 [ 77.153825][ T5119] el0t_64_sync+0x1a0/0x1a4 [ 77.186375][ T5119] BTRFS error (device loop0): failed to run delayed ref for logical 5242880 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 77.192691][ T5119] ------------[ cut here ]------------ [ 77.205672][ T5119] WARNING: CPU: 0 PID: 5119 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 77.207395][ T5119] Modules linked in: [ 77.208109][ T5119] CPU: 0 PID: 5119 Comm: syz.0.25 Tainted: G W syzkaller #0 [ 77.209637][ T5119] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 77.211317][ T5119] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 77.212590][ T5119] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 77.213490][ T5119] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 77.214458][ T5119] sp : ffff800020b077d0 [ 77.215132][ T5119] x29: ffff800020b077e0 x28: ffff0000ccc68000 x27: dfff800000000000 [ 77.216414][ T5119] x26: ffff0000ccc68024 x25: ffff0000cbf04000 x24: 1fffe0001bdb7ad1 [ 77.217743][ T5119] x23: 1fffe0001bdb7ad1 x22: ffff0000dedbd688 x21: 00000000fffffff4 [ 77.219101][ T5119] x20: 0000000000000051 x19: ffff0000dedbd630 x18: 0000000000000001 [ 77.220431][ T5119] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 77.221705][ T5119] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 77.222980][ T5119] x11: 0000000000000000 x10: 0000000000000000 x9 : 6bf7e1be98d69c00 [ 77.224247][ T5119] x8 : 6bf7e1be98d69c00 x7 : 0000000000000001 x6 : 0000000000000001 [ 77.225564][ T5119] x5 : ffff800020b070d8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 77.226877][ T5119] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 77.228166][ T5119] Call trace: [ 77.228693][ T5119] btrfs_run_delayed_refs+0x3e4/0x458 [ 77.229549][ T5119] btrfs_commit_transaction+0x1e0/0x3078 [ 77.230532][ T5119] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 77.231466][ T5119] btrfs_ioctl+0x50c/0xa8c [ 77.232289][ T5119] __arm64_sys_ioctl+0x14c/0x1c8 [ 77.233097][ T5119] invoke_syscall+0x98/0x2b0 [ 77.233863][ T5119] el0_svc_common+0x138/0x258 [ 77.234641][ T5119] do_el0_svc+0x58/0x13c [ 77.235343][ T5119] el0_svc+0x78/0x1d0 [ 77.235969][ T5119] el0t_64_sync_handler+0xcc/0xe4 [ 77.236777][ T5119] el0t_64_sync+0x1a0/0x1a4 [ 77.237546][ T5119] irq event stamp: 78986 [ 77.238216][ T5119] hardirqs last enabled at (78985): [] __up_console_sem+0xb4/0xfc [ 77.239742][ T5119] hardirqs last disabled at (78986): [] el1_dbg+0x24/0x80 [ 77.241087][ T5119] softirqs last enabled at (78924): [] handle_softirqs+0xa40/0xbe4 [ 77.242645][ T5119] softirqs last disabled at (78881): [] __irq_exit_rcu+0x240/0x43c [ 77.244176][ T5119] ---[ end trace d8aa63e12cf4debd ]--- [ 77.247412][ T5119] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 77.265471][ T5119] BTRFS info (device loop0): forced readonly [ 77.527160][ T5141] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.26 (5141) [ 77.534986][ T5141] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 77.536626][ T5141] BTRFS info (device loop0): using free space tree [ 77.537708][ T5141] BTRFS info (device loop0): has skinny extents [ 77.545178][ T5141] BTRFS info (device loop0): enabling ssd optimizations [ 77.548765][ T5141] FAULT_INJECTION: forcing a failure. [ 77.548765][ T5141] name failslab, interval 1, probability 0, space 0, times 0 [ 77.550768][ T5141] CPU: 0 PID: 5141 Comm: syz.0.26 Tainted: G W syzkaller #0 [ 77.552140][ T5141] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 77.553572][ T5141] Call trace: [ 77.554063][ T5141] dump_backtrace+0x0/0x458 [ 77.554831][ T5141] show_stack+0x2c/0x3c [ 77.555560][ T5141] __dump_stack+0x30/0x40 [ 77.556275][ T5141] dump_stack_lvl+0xf4/0x15c [ 77.557018][ T5141] dump_stack+0x1c/0x5c [ 77.557667][ T5141] should_fail+0x3bc/0x514 [ 77.558402][ T5141] __should_failslab+0xbc/0x10c [ 77.559177][ T5141] should_failslab+0x10/0x28 [ 77.559951][ T5141] slab_pre_alloc_hook+0x64/0xe8 [ 77.560795][ T5141] kmem_cache_alloc+0x94/0x3d4 [ 77.561583][ T5141] btrfs_alloc_path+0x5c/0x68 [ 77.562350][ T5141] __btrfs_run_delayed_refs+0xe70/0x348c [ 77.563277][ T5141] btrfs_run_delayed_refs+0x124/0x458 [ 77.564131][ T5141] btrfs_commit_transaction+0x1e0/0x3078 [ 77.565149][ T5141] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 77.566078][ T5141] btrfs_ioctl+0x50c/0xa8c [ 77.566779][ T5141] __arm64_sys_ioctl+0x14c/0x1c8 [ 77.567566][ T5141] invoke_syscall+0x98/0x2b0 [ 77.568386][ T5141] el0_svc_common+0x138/0x258 [ 77.569197][ T5141] do_el0_svc+0x58/0x13c [ 77.569902][ T5141] el0_svc+0x78/0x1d0 [ 77.570565][ T5141] el0t_64_sync_handler+0xcc/0xe4 [ 77.571445][ T5141] el0t_64_sync+0x1a0/0x1a4 [ 77.572284][ T5141] BTRFS error (device loop0): failed to run delayed ref for logical 5242880 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 77.574372][ T5141] ------------[ cut here ]------------ [ 77.575393][ T5141] WARNING: CPU: 0 PID: 5141 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 77.577102][ T5141] Modules linked in: [ 77.577756][ T5141] CPU: 0 PID: 5141 Comm: syz.0.26 Tainted: G W syzkaller #0 [ 77.579166][ T5141] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 77.580770][ T5141] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 77.582173][ T5141] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 77.583160][ T5141] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 77.584198][ T5141] sp : ffff800020f977d0 [ 77.584917][ T5141] x29: ffff800020f977e0 x28: ffff0000ccc6a000 x27: dfff800000000000 [ 77.586326][ T5141] x26: ffff0000ccc6a024 x25: ffff0000d3c14000 x24: 1fffe0001bdb7afd [ 77.587677][ T5141] x23: 1fffe0001bdb7afd x22: ffff0000dedbd7e8 x21: 00000000fffffff4 [ 77.589063][ T5141] x20: 0000000000000051 x19: ffff0000dedbd790 x18: 0000000000000001 [ 77.590465][ T5141] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 77.591772][ T5141] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 77.593084][ T5141] x11: 0000000000000000 x10: 0000000000000000 x9 : 5fb0d2313ef35d00 [ 77.594400][ T5141] x8 : 5fb0d2313ef35d00 x7 : 0000000000000001 x6 : 0000000000000001 [ 77.595707][ T5141] x5 : ffff800020f970d8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 77.596986][ T5141] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 77.598366][ T5141] Call trace: [ 77.598916][ T5141] btrfs_run_delayed_refs+0x3e4/0x458 [ 77.599808][ T5141] btrfs_commit_transaction+0x1e0/0x3078 [ 77.600750][ T5141] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 77.601752][ T5141] btrfs_ioctl+0x50c/0xa8c [ 77.602473][ T5141] __arm64_sys_ioctl+0x14c/0x1c8 [ 77.603267][ T5141] invoke_syscall+0x98/0x2b0 [ 77.604041][ T5141] el0_svc_common+0x138/0x258 [ 77.604811][ T5141] do_el0_svc+0x58/0x13c [ 77.605551][ T5141] el0_svc+0x78/0x1d0 [ 77.606194][ T5141] el0t_64_sync_handler+0xcc/0xe4 [ 77.606998][ T5141] el0t_64_sync+0x1a0/0x1a4 [ 77.607731][ T5141] irq event stamp: 79256 [ 77.608396][ T5141] hardirqs last enabled at (79255): [] __up_console_sem+0xb4/0xfc [ 77.609944][ T5141] hardirqs last disabled at (79256): [] el1_dbg+0x24/0x80 [ 77.611440][ T5141] softirqs last enabled at (79226): [] handle_softirqs+0xa40/0xbe4 [ 77.613018][ T5141] softirqs last disabled at (79219): [] __irq_exit_rcu+0x240/0x43c [ 77.614643][ T5141] ---[ end trace d8aa63e12cf4debe ]--- [ 77.615993][ T5141] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 77.617511][ T5141] BTRFS info (device loop0): forced readonly [ 77.850470][ T5162] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.27 (5162) [ 77.854508][ T5162] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 77.856176][ T5162] BTRFS info (device loop0): using free space tree [ 77.857178][ T5162] BTRFS info (device loop0): has skinny extents [ 77.864204][ T5162] BTRFS info (device loop0): enabling ssd optimizations [ 77.867705][ T5162] FAULT_INJECTION: forcing a failure. [ 77.867705][ T5162] name failslab, interval 1, probability 0, space 0, times 0 [ 77.869756][ T5162] CPU: 1 PID: 5162 Comm: syz.0.27 Tainted: G W syzkaller #0 [ 77.871182][ T5162] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 77.872726][ T5162] Call trace: [ 77.873230][ T5162] dump_backtrace+0x0/0x458 [ 77.873902][ T5162] show_stack+0x2c/0x3c [ 77.874640][ T5162] __dump_stack+0x30/0x40 [ 77.875428][ T5162] dump_stack_lvl+0xf4/0x15c [ 77.876195][ T5162] dump_stack+0x1c/0x5c [ 77.876900][ T5162] should_fail+0x3bc/0x514 [ 77.877658][ T5162] __should_failslab+0xbc/0x10c [ 77.878462][ T5162] should_failslab+0x10/0x28 [ 77.879197][ T5162] slab_pre_alloc_hook+0x64/0xe8 [ 77.880004][ T5162] kmem_cache_alloc+0x94/0x3d4 [ 77.880769][ T5162] btrfs_alloc_path+0x5c/0x68 [ 77.881520][ T5162] __btrfs_run_delayed_refs+0xe70/0x348c [ 77.882429][ T5162] btrfs_run_delayed_refs+0x124/0x458 [ 77.883289][ T5162] btrfs_commit_transaction+0x1e0/0x3078 [ 77.884184][ T5162] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 77.885045][ T5162] btrfs_ioctl+0x50c/0xa8c [ 77.885733][ T5162] __arm64_sys_ioctl+0x14c/0x1c8 [ 77.886519][ T5162] invoke_syscall+0x98/0x2b0 [ 77.887256][ T5162] el0_svc_common+0x138/0x258 [ 77.888062][ T5162] do_el0_svc+0x58/0x13c [ 77.888809][ T5162] el0_svc+0x78/0x1d0 [ 77.889471][ T5162] el0t_64_sync_handler+0xcc/0xe4 [ 77.890237][ T5162] el0t_64_sync+0x1a0/0x1a4 [ 77.892315][ T5162] BTRFS error (device loop0): failed to run delayed ref for logical 5242880 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 77.894313][ T5162] ------------[ cut here ]------------ [ 77.895230][ T5162] WARNING: CPU: 1 PID: 5162 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 77.896891][ T5162] Modules linked in: [ 77.897562][ T5162] CPU: 1 PID: 5162 Comm: syz.0.27 Tainted: G W syzkaller #0 [ 77.898892][ T5162] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 77.900606][ T5162] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 77.901887][ T5162] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 77.902808][ T5162] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 77.903776][ T5162] sp : ffff800020f577d0 [ 77.904470][ T5162] x29: ffff800020f577e0 x28: ffff0000d5aad000 x27: dfff800000000000 [ 77.905900][ T5162] x26: ffff0000d5aad024 x25: ffff0000e81e8000 x24: 1fffe0001bdcc40b [ 77.907295][ T5162] x23: 1fffe0001bdcc40b x22: ffff0000dee62058 x21: 00000000fffffff4 [ 77.908610][ T5162] x20: 0000000000000051 x19: ffff0000dee62000 x18: 0000000000000001 [ 77.909908][ T5162] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 77.911265][ T5162] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 77.912574][ T5162] x11: 0000000000000000 x10: 0000000000000000 x9 : 2f360a0b2f318000 [ 77.913858][ T5162] x8 : 2f360a0b2f318000 x7 : 0000000000000001 x6 : 0000000000000001 [ 77.915095][ T5162] x5 : ffff800020f570d8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 77.916282][ T5162] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 77.917449][ T5162] Call trace: [ 77.917960][ T5162] btrfs_run_delayed_refs+0x3e4/0x458 [ 77.918754][ T5162] btrfs_commit_transaction+0x1e0/0x3078 [ 77.919666][ T5162] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 77.920486][ T5162] btrfs_ioctl+0x50c/0xa8c [ 77.921148][ T5162] __arm64_sys_ioctl+0x14c/0x1c8 [ 77.921905][ T5162] invoke_syscall+0x98/0x2b0 [ 77.922577][ T5162] el0_svc_common+0x138/0x258 [ 77.923469][ T5162] do_el0_svc+0x58/0x13c [ 77.924178][ T5162] el0_svc+0x78/0x1d0 [ 77.924846][ T5162] el0t_64_sync_handler+0xcc/0xe4 [ 77.925643][ T5162] el0t_64_sync+0x1a0/0x1a4 [ 77.926441][ T5162] irq event stamp: 78722 [ 77.927136][ T5162] hardirqs last enabled at (78721): [] __up_console_sem+0xb4/0xfc [ 77.928601][ T5162] hardirqs last disabled at (78722): [] el1_dbg+0x24/0x80 [ 77.930047][ T5162] softirqs last enabled at (78688): [] handle_softirqs+0xa40/0xbe4 [ 77.931635][ T5162] softirqs last disabled at (78673): [] __irq_exit_rcu+0x240/0x43c [ 77.933212][ T5162] ---[ end trace d8aa63e12cf4debf ]--- [ 77.935618][ T5162] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 77.937228][ T5162] BTRFS info (device loop0): forced readonly [ 78.176847][ T5184] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.28 (5184) [ 78.182181][ T5184] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 78.183717][ T5184] BTRFS info (device loop0): using free space tree [ 78.184775][ T5184] BTRFS info (device loop0): has skinny extents [ 78.192584][ T5184] BTRFS info (device loop0): enabling ssd optimizations [ 78.197064][ T5184] FAULT_INJECTION: forcing a failure. [ 78.197064][ T5184] name failslab, interval 1, probability 0, space 0, times 0 [ 78.199344][ T5184] CPU: 0 PID: 5184 Comm: syz.0.28 Tainted: G W syzkaller #0 [ 78.200804][ T5184] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 78.202376][ T5184] Call trace: [ 78.202912][ T5184] dump_backtrace+0x0/0x458 [ 78.203611][ T5184] show_stack+0x2c/0x3c [ 78.204250][ T5184] __dump_stack+0x30/0x40 [ 78.204968][ T5184] dump_stack_lvl+0xf4/0x15c [ 78.205736][ T5184] dump_stack+0x1c/0x5c [ 78.206399][ T5184] should_fail+0x3bc/0x514 [ 78.207127][ T5184] __should_failslab+0xbc/0x10c [ 78.207924][ T5184] should_failslab+0x10/0x28 [ 78.208735][ T5184] slab_pre_alloc_hook+0x64/0xe8 [ 78.209556][ T5184] kmem_cache_alloc+0x94/0x3d4 [ 78.210395][ T5184] btrfs_alloc_path+0x5c/0x68 [ 78.211164][ T5184] __btrfs_run_delayed_refs+0xe70/0x348c [ 78.212034][ T5184] btrfs_run_delayed_refs+0x124/0x458 [ 78.212893][ T5184] btrfs_commit_transaction+0x1e0/0x3078 [ 78.213768][ T5184] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 78.214708][ T5184] btrfs_ioctl+0x50c/0xa8c [ 78.215458][ T5184] __arm64_sys_ioctl+0x14c/0x1c8 [ 78.216284][ T5184] invoke_syscall+0x98/0x2b0 [ 78.217022][ T5184] el0_svc_common+0x138/0x258 [ 78.217771][ T5184] do_el0_svc+0x58/0x13c [ 78.218476][ T5184] el0_svc+0x78/0x1d0 [ 78.219142][ T5184] el0t_64_sync_handler+0xcc/0xe4 [ 78.219951][ T5184] el0t_64_sync+0x1a0/0x1a4 [ 78.222177][ T5184] BTRFS error (device loop0): failed to run delayed ref for logical 5242880 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 78.224189][ T5184] ------------[ cut here ]------------ [ 78.225140][ T5184] WARNING: CPU: 0 PID: 5184 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 78.226703][ T5184] Modules linked in: [ 78.227317][ T5184] CPU: 0 PID: 5184 Comm: syz.0.28 Tainted: G W syzkaller #0 [ 78.228811][ T5184] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 78.230409][ T5184] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 78.231709][ T5184] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 78.232595][ T5184] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 78.233515][ T5184] sp : ffff80001f8677d0 [ 78.234205][ T5184] x29: ffff80001f8677e0 x28: ffff0000ccc69000 x27: dfff800000000000 [ 78.235454][ T5184] x26: ffff0000ccc69024 x25: ffff0000e78ec000 x24: 1fffe0001bdb7b29 [ 78.236720][ T5184] x23: 1fffe0001bdb7b29 x22: ffff0000dedbd948 x21: 00000000fffffff4 [ 78.237993][ T5184] x20: 0000000000000051 x19: ffff0000dedbd8f0 x18: 0000000000000001 [ 78.239229][ T5184] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 78.240472][ T5184] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 78.241757][ T5184] x11: 0000000000000000 x10: 0000000000000000 x9 : a563e7745712fb00 [ 78.243039][ T5184] x8 : a563e7745712fb00 x7 : 0000000000000001 x6 : 0000000000000001 [ 78.244313][ T5184] x5 : ffff80001f8670d8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 78.245537][ T5184] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 78.246914][ T5184] Call trace: [ 78.247429][ T5184] btrfs_run_delayed_refs+0x3e4/0x458 [ 78.248303][ T5184] btrfs_commit_transaction+0x1e0/0x3078 [ 78.249216][ T5184] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 78.250110][ T5184] btrfs_ioctl+0x50c/0xa8c [ 78.250842][ T5184] __arm64_sys_ioctl+0x14c/0x1c8 [ 78.251658][ T5184] invoke_syscall+0x98/0x2b0 [ 78.252365][ T5184] el0_svc_common+0x138/0x258 [ 78.253146][ T5184] do_el0_svc+0x58/0x13c [ 78.253829][ T5184] el0_svc+0x78/0x1d0 [ 78.254451][ T5184] el0t_64_sync_handler+0xcc/0xe4 [ 78.255299][ T5184] el0t_64_sync+0x1a0/0x1a4 [ 78.256066][ T5184] irq event stamp: 78920 [ 78.256818][ T5184] hardirqs last enabled at (78919): [] __up_console_sem+0xb4/0xfc [ 78.258425][ T5184] hardirqs last disabled at (78920): [] el1_dbg+0x24/0x80 [ 78.259906][ T5184] softirqs last enabled at (78886): [] handle_softirqs+0xa40/0xbe4 [ 78.261474][ T5184] softirqs last disabled at (78867): [] __irq_exit_rcu+0x240/0x43c [ 78.263052][ T5184] ---[ end trace d8aa63e12cf4dec0 ]--- [ 78.266762][ T5184] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 78.268373][ T5184] BTRFS info (device loop0): forced readonly [ 78.490555][ T5206] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.29 (5206) [ 78.493666][ T5206] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 78.495152][ T5206] BTRFS info (device loop0): using free space tree [ 78.496340][ T5206] BTRFS info (device loop0): has skinny extents [ 78.505441][ T5206] BTRFS info (device loop0): enabling ssd optimizations [ 78.509364][ T5206] FAULT_INJECTION: forcing a failure. [ 78.509364][ T5206] name failslab, interval 1, probability 0, space 0, times 0 [ 78.511490][ T5206] CPU: 0 PID: 5206 Comm: syz.0.29 Tainted: G W syzkaller #0 [ 78.512834][ T5206] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 78.514378][ T5206] Call trace: [ 78.514878][ T5206] dump_backtrace+0x0/0x458 [ 78.515638][ T5206] show_stack+0x2c/0x3c [ 78.516260][ T5206] __dump_stack+0x30/0x40 [ 78.516914][ T5206] dump_stack_lvl+0xf4/0x15c [ 78.517722][ T5206] dump_stack+0x1c/0x5c [ 78.518384][ T5206] should_fail+0x3bc/0x514 [ 78.519097][ T5206] __should_failslab+0xbc/0x10c [ 78.519880][ T5206] should_failslab+0x10/0x28 [ 78.520614][ T5206] slab_pre_alloc_hook+0x64/0xe8 [ 78.521395][ T5206] kmem_cache_alloc+0x94/0x3d4 [ 78.522188][ T5206] start_transaction+0x4d0/0x13ec [ 78.523018][ T5206] btrfs_start_transaction+0x34/0x44 [ 78.523885][ T5206] btrfs_ioctl_set_fslabel+0x2bc/0x3d0 [ 78.524789][ T5206] btrfs_ioctl+0x50c/0xa8c [ 78.525527][ T5206] __arm64_sys_ioctl+0x14c/0x1c8 [ 78.526283][ T5206] invoke_syscall+0x98/0x2b0 [ 78.526995][ T5206] el0_svc_common+0x138/0x258 [ 78.527699][ T5206] do_el0_svc+0x58/0x13c [ 78.528333][ T5206] el0_svc+0x78/0x1d0 [ 78.528939][ T5206] el0t_64_sync_handler+0xcc/0xe4 [ 78.529700][ T5206] el0t_64_sync+0x1a0/0x1a4 [ 78.591371][ T4882] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 10 /dev/loop0 scanned by udevd (4882) [ 78.672984][ T5227] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 78.674553][ T5227] BTRFS info (device loop0): using free space tree [ 78.676541][ T5227] BTRFS info (device loop0): has skinny extents [ 78.683143][ T5227] BTRFS info (device loop0): enabling ssd optimizations [ 78.686492][ T5227] FAULT_INJECTION: forcing a failure. [ 78.686492][ T5227] name failslab, interval 1, probability 0, space 0, times 0 [ 78.688671][ T5227] CPU: 0 PID: 5227 Comm: syz.0.30 Tainted: G W syzkaller #0 [ 78.690157][ T5227] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 78.691749][ T5227] Call trace: [ 78.692285][ T5227] dump_backtrace+0x0/0x458 [ 78.693040][ T5227] show_stack+0x2c/0x3c [ 78.693728][ T5227] __dump_stack+0x30/0x40 [ 78.694426][ T5227] dump_stack_lvl+0xf4/0x15c [ 78.695178][ T5227] dump_stack+0x1c/0x5c [ 78.695877][ T5227] should_fail+0x3bc/0x514 [ 78.696642][ T5227] __should_failslab+0xbc/0x10c [ 78.697417][ T5227] should_failslab+0x10/0x28 [ 78.698163][ T5227] slab_pre_alloc_hook+0x64/0xe8 [ 78.698937][ T5227] kmem_cache_alloc+0x94/0x3d4 [ 78.699727][ T5227] btrfs_alloc_path+0x5c/0x68 [ 78.700492][ T5227] __btrfs_free_extent+0x1a8/0x1abc [ 78.701372][ T5227] __btrfs_run_delayed_refs+0xbf0/0x348c [ 78.702283][ T5227] btrfs_run_delayed_refs+0x124/0x458 [ 78.703170][ T5227] btrfs_commit_transaction+0x1e0/0x3078 [ 78.704069][ T5227] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 78.704996][ T5227] btrfs_ioctl+0x50c/0xa8c [ 78.705753][ T5227] __arm64_sys_ioctl+0x14c/0x1c8 [ 78.706596][ T5227] invoke_syscall+0x98/0x2b0 [ 78.707296][ T5227] el0_svc_common+0x138/0x258 [ 78.708094][ T5227] do_el0_svc+0x58/0x13c [ 78.708851][ T5227] el0_svc+0x78/0x1d0 [ 78.709539][ T5227] el0t_64_sync_handler+0xcc/0xe4 [ 78.710428][ T5227] el0t_64_sync+0x1a0/0x1a4 [ 78.711738][ T5227] BTRFS error (device loop0): failed to run delayed ref for logical 5255168 num_bytes 4096 type 176 action 2 ref_mod 1: -12 [ 78.713746][ T5227] ------------[ cut here ]------------ [ 78.714779][ T5227] WARNING: CPU: 0 PID: 5227 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 78.716450][ T5227] Modules linked in: [ 78.717082][ T5227] CPU: 0 PID: 5227 Comm: syz.0.30 Tainted: G W syzkaller #0 [ 78.718475][ T5227] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 78.720077][ T5227] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 78.721354][ T5227] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 78.722316][ T5227] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 78.723271][ T5227] sp : ffff8000214c77d0 [ 78.723929][ T5227] x29: ffff8000214c77e0 x28: ffff0000caa5b000 x27: dfff800000000000 [ 78.725237][ T5227] x26: ffff0000caa5b024 x25: ffff0000d2b10000 x24: 1fffe0001bdb7b6b [ 78.726486][ T5227] x23: 1fffe0001bdb7b6b x22: ffff0000dedbdb58 x21: 00000000fffffff4 [ 78.727774][ T5227] x20: 0000000000000051 x19: ffff0000dedbdb00 x18: 0000000000000001 [ 78.729144][ T5227] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 78.730478][ T5227] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 78.731767][ T5227] x11: 0000000000000000 x10: 0000000000000000 x9 : 149c9b80aa5e8200 [ 78.733078][ T5227] x8 : 149c9b80aa5e8200 x7 : 0000000000000001 x6 : 0000000000000001 [ 78.734415][ T5227] x5 : ffff8000214c70d8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 78.735729][ T5227] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 78.737104][ T5227] Call trace: [ 78.737645][ T5227] btrfs_run_delayed_refs+0x3e4/0x458 [ 78.738567][ T5227] btrfs_commit_transaction+0x1e0/0x3078 [ 78.739510][ T5227] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 78.740401][ T5227] btrfs_ioctl+0x50c/0xa8c [ 78.741116][ T5227] __arm64_sys_ioctl+0x14c/0x1c8 [ 78.741914][ T5227] invoke_syscall+0x98/0x2b0 [ 78.742629][ T5227] el0_svc_common+0x138/0x258 [ 78.743425][ T5227] do_el0_svc+0x58/0x13c [ 78.744052][ T5227] el0_svc+0x78/0x1d0 [ 78.744658][ T5227] el0t_64_sync_handler+0xcc/0xe4 [ 78.745468][ T5227] el0t_64_sync+0x1a0/0x1a4 [ 78.746200][ T5227] irq event stamp: 78668 [ 78.746900][ T5227] hardirqs last enabled at (78667): [] __up_console_sem+0xb4/0xfc [ 78.748579][ T5227] hardirqs last disabled at (78668): [] el1_dbg+0x24/0x80 [ 78.750085][ T5227] softirqs last enabled at (78636): [] handle_softirqs+0xa40/0xbe4 [ 78.751639][ T5227] softirqs last disabled at (78565): [] __irq_exit_rcu+0x240/0x43c [ 78.753171][ T5227] ---[ end trace d8aa63e12cf4dec1 ]--- [ 78.754720][ T5227] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 78.756332][ T5227] BTRFS info (device loop0): forced readonly [ 78.936664][ T5250] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.31 (5250) [ 78.997552][ T5250] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 78.999045][ T5250] BTRFS info (device loop0): using free space tree [ 79.000001][ T5250] BTRFS info (device loop0): has skinny extents [ 79.016987][ T5250] BTRFS info (device loop0): enabling ssd optimizations [ 79.021624][ T5250] FAULT_INJECTION: forcing a failure. [ 79.021624][ T5250] name failslab, interval 1, probability 0, space 0, times 0 [ 79.023775][ T5250] CPU: 1 PID: 5250 Comm: syz.0.31 Tainted: G W syzkaller #0 [ 79.025102][ T5250] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 79.026848][ T5250] Call trace: [ 79.027349][ T5250] dump_backtrace+0x0/0x458 [ 79.028041][ T5250] show_stack+0x2c/0x3c [ 79.028670][ T5250] __dump_stack+0x30/0x40 [ 79.029343][ T5250] dump_stack_lvl+0xf4/0x15c [ 79.030105][ T5250] dump_stack+0x1c/0x5c [ 79.030768][ T5250] should_fail+0x3bc/0x514 [ 79.031553][ T5250] __should_failslab+0xbc/0x10c [ 79.032323][ T5250] should_failslab+0x10/0x28 [ 79.033114][ T5250] slab_pre_alloc_hook+0x64/0xe8 [ 79.033883][ T5250] kmem_cache_alloc+0x94/0x3d4 [ 79.034659][ T5250] btrfs_alloc_path+0x5c/0x68 [ 79.035341][ T5250] __btrfs_free_extent+0x1a8/0x1abc [ 79.036251][ T5250] __btrfs_run_delayed_refs+0xbf0/0x348c [ 79.037179][ T5250] btrfs_run_delayed_refs+0x124/0x458 [ 79.037997][ T5250] btrfs_commit_transaction+0x1e0/0x3078 [ 79.038866][ T5250] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 79.039732][ T5250] btrfs_ioctl+0x50c/0xa8c [ 79.040401][ T5250] __arm64_sys_ioctl+0x14c/0x1c8 [ 79.041247][ T5250] invoke_syscall+0x98/0x2b0 [ 79.042022][ T5250] el0_svc_common+0x138/0x258 [ 79.042771][ T5250] do_el0_svc+0x58/0x13c [ 79.043463][ T5250] el0_svc+0x78/0x1d0 [ 79.044116][ T5250] el0t_64_sync_handler+0xcc/0xe4 [ 79.044935][ T5250] el0t_64_sync+0x1a0/0x1a4 [ 79.047301][ T5250] BTRFS error (device loop0): failed to run delayed ref for logical 5255168 num_bytes 4096 type 176 action 2 ref_mod 1: -12 [ 79.049391][ T5250] ------------[ cut here ]------------ [ 79.050342][ T5250] WARNING: CPU: 1 PID: 5250 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 79.052014][ T5250] Modules linked in: [ 79.052585][ T5250] CPU: 1 PID: 5250 Comm: syz.0.31 Tainted: G W syzkaller #0 [ 79.053966][ T5250] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 79.055561][ T5250] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 79.056775][ T5250] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 79.057699][ T5250] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 79.058667][ T5250] sp : ffff8000213b77d0 [ 79.059331][ T5250] x29: ffff8000213b77e0 x28: ffff0000c85f1000 x27: dfff800000000000 [ 79.060647][ T5250] x26: ffff0000c85f1024 x25: ffff0000ec0a8000 x24: 1fffe0001bdcc437 [ 79.061983][ T5250] x23: 1fffe0001bdcc437 x22: ffff0000dee621b8 x21: 00000000fffffff4 [ 79.063253][ T5250] x20: 0000000000000051 x19: ffff0000dee62160 x18: 0000000000000001 [ 79.064521][ T5250] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 79.065785][ T5250] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 79.066955][ T5250] x11: 0000000000000000 x10: 0000000000000000 x9 : 29cd47820b302d00 [ 79.068141][ T5250] x8 : 29cd47820b302d00 x7 : 0000000000000001 x6 : 0000000000000001 [ 79.069307][ T5250] x5 : ffff8000213b70d8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 79.070533][ T5250] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 79.071888][ T5250] Call trace: [ 79.072419][ T5250] btrfs_run_delayed_refs+0x3e4/0x458 [ 79.073266][ T5250] btrfs_commit_transaction+0x1e0/0x3078 [ 79.074177][ T5250] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 79.075087][ T5250] btrfs_ioctl+0x50c/0xa8c [ 79.075843][ T5250] __arm64_sys_ioctl+0x14c/0x1c8 [ 79.076696][ T5250] invoke_syscall+0x98/0x2b0 [ 79.077468][ T5250] el0_svc_common+0x138/0x258 [ 79.078317][ T5250] do_el0_svc+0x58/0x13c [ 79.079044][ T5250] el0_svc+0x78/0x1d0 [ 79.079671][ T5250] el0t_64_sync_handler+0xcc/0xe4 [ 79.080508][ T5250] el0t_64_sync+0x1a0/0x1a4 [ 79.081221][ T5250] irq event stamp: 78938 [ 79.081888][ T5250] hardirqs last enabled at (78937): [] __up_console_sem+0xb4/0xfc [ 79.083496][ T5250] hardirqs last disabled at (78938): [] el1_dbg+0x24/0x80 [ 79.084975][ T5250] softirqs last enabled at (78906): [] handle_softirqs+0xa40/0xbe4 [ 79.086587][ T5250] softirqs last disabled at (78879): [] __irq_exit_rcu+0x240/0x43c [ 79.088157][ T5250] ---[ end trace d8aa63e12cf4dec2 ]--- [ 79.091176][ T5250] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 79.092829][ T5250] BTRFS info (device loop0): forced readonly 1970/01/01 00:01:19 executed programs: 19 [ 79.285283][ T5272] set_capacity_and_notify: 7 callbacks suppressed [ 79.285292][ T5272] loop0: detected capacity change from 0 to 32768 [ 79.326717][ T5272] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.32 (5272) [ 79.329707][ T5272] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 79.330990][ T5272] BTRFS info (device loop0): using free space tree [ 79.332144][ T5272] BTRFS info (device loop0): has skinny extents [ 79.340305][ T5272] BTRFS info (device loop0): enabling ssd optimizations [ 79.343584][ T5272] FAULT_INJECTION: forcing a failure. [ 79.343584][ T5272] name failslab, interval 1, probability 0, space 0, times 0 [ 79.345842][ T5272] CPU: 0 PID: 5272 Comm: syz.0.32 Tainted: G W syzkaller #0 [ 79.347177][ T5272] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 79.348826][ T5272] Call trace: [ 79.349355][ T5272] dump_backtrace+0x0/0x458 [ 79.350065][ T5272] show_stack+0x2c/0x3c [ 79.350700][ T5272] __dump_stack+0x30/0x40 [ 79.351359][ T5272] dump_stack_lvl+0xf4/0x15c [ 79.352091][ T5272] dump_stack+0x1c/0x5c [ 79.352812][ T5272] should_fail+0x3bc/0x514 [ 79.353511][ T5272] __should_failslab+0xbc/0x10c [ 79.354277][ T5272] should_failslab+0x10/0x28 [ 79.354973][ T5272] slab_pre_alloc_hook+0x64/0xe8 [ 79.355753][ T5272] kmem_cache_alloc+0x94/0x3d4 [ 79.356592][ T5272] btrfs_alloc_path+0x5c/0x68 [ 79.357332][ T5272] __btrfs_run_delayed_refs+0xe70/0x348c [ 79.358262][ T5272] btrfs_run_delayed_refs+0x124/0x458 [ 79.359108][ T5272] btrfs_commit_transaction+0x1e0/0x3078 [ 79.360029][ T5272] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 79.360938][ T5272] btrfs_ioctl+0x50c/0xa8c [ 79.361682][ T5272] __arm64_sys_ioctl+0x14c/0x1c8 [ 79.362489][ T5272] invoke_syscall+0x98/0x2b0 [ 79.363270][ T5272] el0_svc_common+0x138/0x258 [ 79.364045][ T5272] do_el0_svc+0x58/0x13c [ 79.364752][ T5272] el0_svc+0x78/0x1d0 [ 79.365356][ T5272] el0t_64_sync_handler+0xcc/0xe4 [ 79.366167][ T5272] el0t_64_sync+0x1a0/0x1a4 [ 79.367218][ T5272] BTRFS error (device loop0): failed to run delayed ref for logical 5242880 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 79.369227][ T5272] ------------[ cut here ]------------ [ 79.370223][ T5272] WARNING: CPU: 0 PID: 5272 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 79.371852][ T5272] Modules linked in: [ 79.372450][ T5272] CPU: 0 PID: 5272 Comm: syz.0.32 Tainted: G W syzkaller #0 [ 79.373791][ T5272] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 79.375331][ T5272] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 79.376576][ T5272] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 79.377483][ T5272] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 79.378396][ T5272] sp : ffff8000216777d0 [ 79.379065][ T5272] x29: ffff8000216777e0 x28: ffff0000dd10b000 x27: dfff800000000000 [ 79.380407][ T5272] x26: ffff0000dd10b024 x25: ffff0000d7cc4000 x24: 1fffe0001bdb7b81 [ 79.381780][ T5272] x23: 1fffe0001bdb7b81 x22: ffff0000dedbdc08 x21: 00000000fffffff4 [ 79.383161][ T5272] x20: 0000000000000051 x19: ffff0000dedbdbb0 x18: 0000000000000001 [ 79.384459][ T5272] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 79.385790][ T5272] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 79.387066][ T5272] x11: 0000000000000000 x10: 0000000000000000 x9 : c9c6425127657800 [ 79.388356][ T5272] x8 : c9c6425127657800 x7 : 0000000000000001 x6 : 0000000000000001 [ 79.389690][ T5272] x5 : ffff8000216770d8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 79.391001][ T5272] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 79.392239][ T5272] Call trace: [ 79.392816][ T5272] btrfs_run_delayed_refs+0x3e4/0x458 [ 79.393681][ T5272] btrfs_commit_transaction+0x1e0/0x3078 [ 79.394582][ T5272] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 79.395445][ T5272] btrfs_ioctl+0x50c/0xa8c [ 79.396186][ T5272] __arm64_sys_ioctl+0x14c/0x1c8 [ 79.396967][ T5272] invoke_syscall+0x98/0x2b0 [ 79.397695][ T5272] el0_svc_common+0x138/0x258 [ 79.398373][ T5272] do_el0_svc+0x58/0x13c [ 79.399071][ T5272] el0_svc+0x78/0x1d0 [ 79.399657][ T5272] el0t_64_sync_handler+0xcc/0xe4 [ 79.400441][ T5272] el0t_64_sync+0x1a0/0x1a4 [ 79.401142][ T5272] irq event stamp: 78846 [ 79.401807][ T5272] hardirqs last enabled at (78845): [] __up_console_sem+0xb4/0xfc [ 79.403336][ T5272] hardirqs last disabled at (78846): [] el1_dbg+0x24/0x80 [ 79.404657][ T5272] softirqs last enabled at (78812): [] handle_softirqs+0xa40/0xbe4 [ 79.406062][ T5272] softirqs last disabled at (78771): [] __irq_exit_rcu+0x240/0x43c [ 79.407502][ T5272] ---[ end trace d8aa63e12cf4dec3 ]--- [ 79.409023][ T5272] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 79.410515][ T5272] BTRFS info (device loop0): forced readonly [ 79.547891][ T5294] loop0: detected capacity change from 0 to 32768 [ 79.554873][ T5294] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.33 (5294) [ 79.559489][ T5294] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 79.560907][ T5294] BTRFS info (device loop0): using free space tree [ 79.561924][ T5294] BTRFS info (device loop0): has skinny extents [ 79.572281][ T5294] BTRFS info (device loop0): enabling ssd optimizations [ 79.575832][ T5294] FAULT_INJECTION: forcing a failure. [ 79.575832][ T5294] name failslab, interval 1, probability 0, space 0, times 0 [ 79.577689][ T5294] CPU: 1 PID: 5294 Comm: syz.0.33 Tainted: G W syzkaller #0 [ 79.578962][ T5294] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 79.580600][ T5294] Call trace: [ 79.581148][ T5294] dump_backtrace+0x0/0x458 [ 79.581886][ T5294] show_stack+0x2c/0x3c [ 79.582609][ T5294] __dump_stack+0x30/0x40 [ 79.583311][ T5294] dump_stack_lvl+0xf4/0x15c [ 79.584059][ T5294] dump_stack+0x1c/0x5c [ 79.584705][ T5294] should_fail+0x3bc/0x514 [ 79.585493][ T5294] __should_failslab+0xbc/0x10c [ 79.586323][ T5294] should_failslab+0x10/0x28 [ 79.587111][ T5294] slab_pre_alloc_hook+0x64/0xe8 [ 79.587916][ T5294] kmem_cache_alloc+0x94/0x3d4 [ 79.588709][ T5294] btrfs_alloc_path+0x5c/0x68 [ 79.589480][ T5294] __btrfs_run_delayed_refs+0xe70/0x348c [ 79.590378][ T5294] btrfs_run_delayed_refs+0x124/0x458 [ 79.591183][ T5294] btrfs_commit_transaction+0x1e0/0x3078 [ 79.592087][ T5294] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 79.592900][ T5294] btrfs_ioctl+0x50c/0xa8c [ 79.593550][ T5294] __arm64_sys_ioctl+0x14c/0x1c8 [ 79.594379][ T5294] invoke_syscall+0x98/0x2b0 [ 79.595105][ T5294] el0_svc_common+0x138/0x258 [ 79.595844][ T5294] do_el0_svc+0x58/0x13c [ 79.596552][ T5294] el0_svc+0x78/0x1d0 [ 79.597180][ T5294] el0t_64_sync_handler+0xcc/0xe4 [ 79.598003][ T5294] el0t_64_sync+0x1a0/0x1a4 [ 79.600274][ T5294] BTRFS error (device loop0): failed to run delayed ref for logical 5242880 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 79.602256][ T5294] ------------[ cut here ]------------ [ 79.603184][ T5294] WARNING: CPU: 1 PID: 5294 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 79.604696][ T5294] Modules linked in: [ 79.605376][ T5294] CPU: 1 PID: 5294 Comm: syz.0.33 Tainted: G W syzkaller #0 [ 79.606773][ T5294] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 79.608350][ T5294] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 79.609608][ T5294] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 79.610514][ T5294] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 79.611428][ T5294] sp : ffff8000216777d0 [ 79.612111][ T5294] x29: ffff8000216777e0 x28: ffff0000c85f4000 x27: dfff800000000000 [ 79.613475][ T5294] x26: ffff0000c85f4024 x25: ffff0000d8878000 x24: 1fffe0001bdcc555 [ 79.614942][ T5294] x23: 1fffe0001bdcc555 x22: ffff0000dee62aa8 x21: 00000000fffffff4 [ 79.616337][ T5294] x20: 0000000000000051 x19: ffff0000dee62a50 x18: 0000000000000001 [ 79.617627][ T5294] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 79.618955][ T5294] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 79.620264][ T5294] x11: 0000000000000000 x10: 0000000000000000 x9 : 2413868c82c89800 [ 79.621548][ T5294] x8 : 2413868c82c89800 x7 : 0000000000000001 x6 : 0000000000000001 [ 79.622825][ T5294] x5 : ffff8000216770d8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 79.624073][ T5294] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 79.625303][ T5294] Call trace: [ 79.625788][ T5294] btrfs_run_delayed_refs+0x3e4/0x458 [ 79.626711][ T5294] btrfs_commit_transaction+0x1e0/0x3078 [ 79.627652][ T5294] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 79.628541][ T5294] btrfs_ioctl+0x50c/0xa8c [ 79.629247][ T5294] __arm64_sys_ioctl+0x14c/0x1c8 [ 79.630023][ T5294] invoke_syscall+0x98/0x2b0 [ 79.630783][ T5294] el0_svc_common+0x138/0x258 [ 79.631524][ T5294] do_el0_svc+0x58/0x13c [ 79.632237][ T5294] el0_svc+0x78/0x1d0 [ 79.632850][ T5294] el0t_64_sync_handler+0xcc/0xe4 [ 79.633653][ T5294] el0t_64_sync+0x1a0/0x1a4 [ 79.634353][ T5294] irq event stamp: 79470 [ 79.635004][ T5294] hardirqs last enabled at (79469): [] __up_console_sem+0xb4/0xfc [ 79.636642][ T5294] hardirqs last disabled at (79470): [] el1_dbg+0x24/0x80 [ 79.638066][ T5294] softirqs last enabled at (79436): [] handle_softirqs+0xa40/0xbe4 [ 79.639611][ T5294] softirqs last disabled at (79415): [] __irq_exit_rcu+0x240/0x43c [ 79.641161][ T5294] ---[ end trace d8aa63e12cf4dec4 ]--- [ 79.644149][ T5294] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 79.645571][ T5294] BTRFS info (device loop0): forced readonly [ 79.806645][ T5316] loop0: detected capacity change from 0 to 32768 [ 79.856679][ T5316] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.34 (5316) [ 79.864450][ T5316] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 79.866496][ T5316] BTRFS info (device loop0): using free space tree [ 79.867771][ T5316] BTRFS info (device loop0): has skinny extents [ 79.884114][ T5316] BTRFS info (device loop0): enabling ssd optimizations [ 79.888026][ T5316] FAULT_INJECTION: forcing a failure. [ 79.888026][ T5316] name failslab, interval 1, probability 0, space 0, times 0 [ 79.890093][ T5316] CPU: 1 PID: 5316 Comm: syz.0.34 Tainted: G W syzkaller #0 [ 79.891523][ T5316] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 79.893163][ T5316] Call trace: [ 79.893668][ T5316] dump_backtrace+0x0/0x458 [ 79.894470][ T5316] show_stack+0x2c/0x3c [ 79.895138][ T5316] __dump_stack+0x30/0x40 [ 79.895797][ T5316] dump_stack_lvl+0xf4/0x15c [ 79.896454][ T5316] dump_stack+0x1c/0x5c [ 79.897082][ T5316] should_fail+0x3bc/0x514 [ 79.897719][ T5316] __should_failslab+0xbc/0x10c [ 79.898448][ T5316] should_failslab+0x10/0x28 [ 79.899160][ T5316] slab_pre_alloc_hook+0x64/0xe8 [ 79.900070][ T5316] kmem_cache_alloc+0x94/0x3d4 [ 79.900875][ T5316] btrfs_alloc_path+0x5c/0x68 [ 79.901633][ T5316] __btrfs_run_delayed_refs+0xe70/0x348c [ 79.902558][ T5316] btrfs_run_delayed_refs+0x124/0x458 [ 79.903512][ T5316] btrfs_commit_transaction+0x1e0/0x3078 [ 79.904379][ T5316] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 79.905501][ T5316] btrfs_ioctl+0x50c/0xa8c [ 79.906314][ T5316] __arm64_sys_ioctl+0x14c/0x1c8 [ 79.907203][ T5316] invoke_syscall+0x98/0x2b0 [ 79.907938][ T5316] el0_svc_common+0x138/0x258 [ 79.908742][ T5316] do_el0_svc+0x58/0x13c [ 79.909444][ T5316] el0_svc+0x78/0x1d0 [ 79.910170][ T5316] el0t_64_sync_handler+0xcc/0xe4 [ 79.911094][ T5316] el0t_64_sync+0x1a0/0x1a4 [ 79.914073][ T5316] BTRFS error (device loop0): failed to run delayed ref for logical 5242880 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 79.916143][ T5316] ------------[ cut here ]------------ [ 79.917168][ T5316] WARNING: CPU: 1 PID: 5316 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 79.918847][ T5316] Modules linked in: [ 79.919452][ T5316] CPU: 1 PID: 5316 Comm: syz.0.34 Tainted: G W syzkaller #0 [ 79.920918][ T5316] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 79.922564][ T5316] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 79.923811][ T5316] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 79.924774][ T5316] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 79.925662][ T5316] sp : ffff8000219777d0 [ 79.926291][ T5316] x29: ffff8000219777e0 x28: ffff0000c85f5000 x27: dfff800000000000 [ 79.927527][ T5316] x26: ffff0000c85f5024 x25: ffff0000c9488000 x24: 1fffe0001bdcc581 [ 79.928832][ T5316] x23: 1fffe0001bdcc581 x22: ffff0000dee62c08 x21: 00000000fffffff4 [ 79.930124][ T5316] x20: 0000000000000051 x19: ffff0000dee62bb0 x18: 0000000000000001 [ 79.931538][ T5316] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 79.932847][ T5316] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 79.934133][ T5316] x11: 0000000000000000 x10: 0000000000000000 x9 : dad94fcf495c8800 [ 79.935566][ T5316] x8 : dad94fcf495c8800 x7 : 0000000000000001 x6 : 0000000000000001 [ 79.936914][ T5316] x5 : ffff8000219770d8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 79.938273][ T5316] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 79.939649][ T5316] Call trace: [ 79.940180][ T5316] btrfs_run_delayed_refs+0x3e4/0x458 [ 79.941071][ T5316] btrfs_commit_transaction+0x1e0/0x3078 [ 79.942014][ T5316] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 79.942925][ T5316] btrfs_ioctl+0x50c/0xa8c [ 79.943645][ T5316] __arm64_sys_ioctl+0x14c/0x1c8 [ 79.944482][ T5316] invoke_syscall+0x98/0x2b0 [ 79.945208][ T5316] el0_svc_common+0x138/0x258 [ 79.945960][ T5316] do_el0_svc+0x58/0x13c [ 79.946661][ T5316] el0_svc+0x78/0x1d0 [ 79.947303][ T5316] el0t_64_sync_handler+0xcc/0xe4 [ 79.948139][ T5316] el0t_64_sync+0x1a0/0x1a4 [ 79.948872][ T5316] irq event stamp: 78778 [ 79.949556][ T5316] hardirqs last enabled at (78777): [] __up_console_sem+0xb4/0xfc [ 79.951101][ T5316] hardirqs last disabled at (78778): [] el1_dbg+0x24/0x80 [ 79.952553][ T5316] softirqs last enabled at (78756): [] handle_softirqs+0xa40/0xbe4 [ 79.953985][ T5316] softirqs last disabled at (78743): [] __irq_exit_rcu+0x240/0x43c [ 79.955594][ T5316] ---[ end trace d8aa63e12cf4dec5 ]--- [ 79.958586][ T5316] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 79.960005][ T5316] BTRFS info (device loop0): forced readonly [ 80.138902][ T5338] loop0: detected capacity change from 0 to 32768 [ 80.190848][ T5338] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.35 (5338) [ 80.195157][ T5338] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 80.196871][ T5338] BTRFS info (device loop0): using free space tree [ 80.198005][ T5338] BTRFS info (device loop0): has skinny extents [ 80.205278][ T5338] BTRFS info (device loop0): enabling ssd optimizations [ 80.209568][ T5338] FAULT_INJECTION: forcing a failure. [ 80.209568][ T5338] name failslab, interval 1, probability 0, space 0, times 0 [ 80.211600][ T5338] CPU: 1 PID: 5338 Comm: syz.0.35 Tainted: G W syzkaller #0 [ 80.212952][ T5338] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 80.214656][ T5338] Call trace: [ 80.215154][ T5338] dump_backtrace+0x0/0x458 [ 80.215877][ T5338] show_stack+0x2c/0x3c [ 80.216574][ T5338] __dump_stack+0x30/0x40 [ 80.217289][ T5338] dump_stack_lvl+0xf4/0x15c [ 80.218050][ T5338] dump_stack+0x1c/0x5c [ 80.218695][ T5338] should_fail+0x3bc/0x514 [ 80.219410][ T5338] __should_failslab+0xbc/0x10c [ 80.220196][ T5338] should_failslab+0x10/0x28 [ 80.220872][ T5338] slab_pre_alloc_hook+0x64/0xe8 [ 80.221620][ T5338] kmem_cache_alloc+0x94/0x3d4 [ 80.222491][ T5338] btrfs_alloc_path+0x5c/0x68 [ 80.223268][ T5338] __btrfs_run_delayed_refs+0xe70/0x348c [ 80.224242][ T5338] btrfs_run_delayed_refs+0x124/0x458 [ 80.225086][ T5338] btrfs_commit_transaction+0x1e0/0x3078 [ 80.225979][ T5338] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 80.226811][ T5338] btrfs_ioctl+0x50c/0xa8c [ 80.227453][ T5338] __arm64_sys_ioctl+0x14c/0x1c8 [ 80.228198][ T5338] invoke_syscall+0x98/0x2b0 [ 80.228864][ T5338] el0_svc_common+0x138/0x258 [ 80.229650][ T5338] do_el0_svc+0x58/0x13c [ 80.230311][ T5338] el0_svc+0x78/0x1d0 [ 80.230910][ T5338] el0t_64_sync_handler+0xcc/0xe4 [ 80.231650][ T5338] el0t_64_sync+0x1a0/0x1a4 [ 80.233806][ T5338] BTRFS error (device loop0): failed to run delayed ref for logical 5242880 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 80.235981][ T5338] ------------[ cut here ]------------ [ 80.236869][ T5338] WARNING: CPU: 1 PID: 5338 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 80.238552][ T5338] Modules linked in: [ 80.239156][ T5338] CPU: 1 PID: 5338 Comm: syz.0.35 Tainted: G W syzkaller #0 [ 80.240523][ T5338] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 80.242189][ T5338] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 80.243469][ T5338] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 80.244392][ T5338] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 80.245398][ T5338] sp : ffff8000217677d0 [ 80.246095][ T5338] x29: ffff8000217677e0 x28: ffff0000c85f7000 x27: dfff800000000000 [ 80.247430][ T5338] x26: ffff0000c85f7024 x25: ffff0000e883c000 x24: 1fffe0001bdcc5ad [ 80.248839][ T5338] x23: 1fffe0001bdcc5ad x22: ffff0000dee62d68 x21: 00000000fffffff4 [ 80.250231][ T5338] x20: 0000000000000051 x19: ffff0000dee62d10 x18: 0000000000000001 [ 80.251592][ T5338] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 80.253070][ T5338] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 80.254395][ T5338] x11: 0000000000000000 x10: 0000000000000000 x9 : 58d3f4f739b37500 [ 80.255683][ T5338] x8 : 58d3f4f739b37500 x7 : 0000000000000001 x6 : 0000000000000001 [ 80.257042][ T5338] x5 : ffff8000217670d8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 80.258356][ T5338] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 80.259665][ T5338] Call trace: [ 80.260176][ T5338] btrfs_run_delayed_refs+0x3e4/0x458 [ 80.261054][ T5338] btrfs_commit_transaction+0x1e0/0x3078 [ 80.262030][ T5338] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 80.262937][ T5338] btrfs_ioctl+0x50c/0xa8c [ 80.263669][ T5338] __arm64_sys_ioctl+0x14c/0x1c8 [ 80.264471][ T5338] invoke_syscall+0x98/0x2b0 [ 80.265268][ T5338] el0_svc_common+0x138/0x258 [ 80.266091][ T5338] do_el0_svc+0x58/0x13c [ 80.266835][ T5338] el0_svc+0x78/0x1d0 [ 80.267493][ T5338] el0t_64_sync_handler+0xcc/0xe4 [ 80.268297][ T5338] el0t_64_sync+0x1a0/0x1a4 [ 80.269056][ T5338] irq event stamp: 78828 [ 80.269826][ T5338] hardirqs last enabled at (78827): [] __up_console_sem+0xb4/0xfc [ 80.271344][ T5338] hardirqs last disabled at (78828): [] el1_dbg+0x24/0x80 [ 80.272863][ T5338] softirqs last enabled at (78806): [] handle_softirqs+0xa40/0xbe4 [ 80.274460][ T5338] softirqs last disabled at (78663): [] __irq_exit_rcu+0x240/0x43c [ 80.275996][ T5338] ---[ end trace d8aa63e12cf4dec6 ]--- [ 80.277658][ T5338] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 80.279109][ T5338] BTRFS info (device loop0): forced readonly [ 80.455301][ T5360] loop0: detected capacity change from 0 to 32768 [ 80.500516][ T5360] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.36 (5360) [ 80.503797][ T5360] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 80.505231][ T5360] BTRFS info (device loop0): using free space tree [ 80.506371][ T5360] BTRFS info (device loop0): has skinny extents [ 80.514638][ T5360] BTRFS info (device loop0): enabling ssd optimizations [ 80.517985][ T5360] FAULT_INJECTION: forcing a failure. [ 80.517985][ T5360] name failslab, interval 1, probability 0, space 0, times 0 [ 80.520056][ T5360] CPU: 1 PID: 5360 Comm: syz.0.36 Tainted: G W syzkaller #0 [ 80.521562][ T5360] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 80.523043][ T5360] Call trace: [ 80.523516][ T5360] dump_backtrace+0x0/0x458 [ 80.524168][ T5360] show_stack+0x2c/0x3c [ 80.524921][ T5360] __dump_stack+0x30/0x40 [ 80.525589][ T5360] dump_stack_lvl+0xf4/0x15c [ 80.526323][ T5360] dump_stack+0x1c/0x5c [ 80.527159][ T5360] should_fail+0x3bc/0x514 [ 80.527877][ T5360] __should_failslab+0xbc/0x10c [ 80.528607][ T5360] should_failslab+0x10/0x28 [ 80.529311][ T5360] slab_pre_alloc_hook+0x64/0xe8 [ 80.530055][ T5360] kmem_cache_alloc+0x94/0x3d4 [ 80.530857][ T5360] start_transaction+0x4d0/0x13ec [ 80.531638][ T5360] btrfs_start_transaction+0x34/0x44 [ 80.532541][ T5360] btrfs_ioctl_set_fslabel+0x2bc/0x3d0 [ 80.533475][ T5360] btrfs_ioctl+0x50c/0xa8c [ 80.534251][ T5360] __arm64_sys_ioctl+0x14c/0x1c8 [ 80.535176][ T5360] invoke_syscall+0x98/0x2b0 [ 80.535942][ T5360] el0_svc_common+0x138/0x258 [ 80.536684][ T5360] do_el0_svc+0x58/0x13c [ 80.537396][ T5360] el0_svc+0x78/0x1d0 [ 80.538010][ T5360] el0t_64_sync_handler+0xcc/0xe4 [ 80.538810][ T5360] el0t_64_sync+0x1a0/0x1a4 [ 80.591202][ T4882] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 10 /dev/loop0 scanned by udevd (4882) [ 80.682958][ T5381] loop0: detected capacity change from 0 to 32768 [ 80.721513][ T5381] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 80.723057][ T5381] BTRFS info (device loop0): using free space tree [ 80.724062][ T5381] BTRFS info (device loop0): has skinny extents [ 80.731356][ T5381] BTRFS info (device loop0): enabling ssd optimizations [ 80.735507][ T5381] FAULT_INJECTION: forcing a failure. [ 80.735507][ T5381] name failslab, interval 1, probability 0, space 0, times 0 [ 80.737596][ T5381] CPU: 1 PID: 5381 Comm: syz.0.37 Tainted: G W syzkaller #0 [ 80.739006][ T5381] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 80.740628][ T5381] Call trace: [ 80.741147][ T5381] dump_backtrace+0x0/0x458 [ 80.741875][ T5381] show_stack+0x2c/0x3c [ 80.742533][ T5381] __dump_stack+0x30/0x40 [ 80.743189][ T5381] dump_stack_lvl+0xf4/0x15c [ 80.743971][ T5381] dump_stack+0x1c/0x5c [ 80.744667][ T5381] should_fail+0x3bc/0x514 [ 80.745381][ T5381] __should_failslab+0xbc/0x10c [ 80.746224][ T5381] should_failslab+0x10/0x28 [ 80.746995][ T5381] slab_pre_alloc_hook+0x64/0xe8 [ 80.747800][ T5381] kmem_cache_alloc+0x94/0x3d4 [ 80.748605][ T5381] btrfs_alloc_path+0x5c/0x68 [ 80.749388][ T5381] __btrfs_run_delayed_refs+0xe70/0x348c [ 80.750285][ T5381] btrfs_run_delayed_refs+0x124/0x458 [ 80.751131][ T5381] btrfs_commit_transaction+0x1e0/0x3078 [ 80.752105][ T5381] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 80.753053][ T5381] btrfs_ioctl+0x50c/0xa8c [ 80.753792][ T5381] __arm64_sys_ioctl+0x14c/0x1c8 [ 80.754618][ T5381] invoke_syscall+0x98/0x2b0 [ 80.755408][ T5381] el0_svc_common+0x138/0x258 [ 80.756177][ T5381] do_el0_svc+0x58/0x13c [ 80.756861][ T5381] el0_svc+0x78/0x1d0 [ 80.757485][ T5381] el0t_64_sync_handler+0xcc/0xe4 [ 80.758283][ T5381] el0t_64_sync+0x1a0/0x1a4 [ 80.759192][ T5381] BTRFS error (device loop0): failed to run delayed ref for logical 5242880 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 80.761319][ T5381] ------------[ cut here ]------------ [ 80.762286][ T5381] WARNING: CPU: 1 PID: 5381 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 80.763911][ T5381] Modules linked in: [ 80.764538][ T5381] CPU: 1 PID: 5381 Comm: syz.0.37 Tainted: G W syzkaller #0 [ 80.765977][ T5381] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 80.767625][ T5381] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 80.768859][ T5381] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 80.769798][ T5381] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 80.770671][ T5381] sp : ffff800021bd77d0 [ 80.771322][ T5381] x29: ffff800021bd77e0 x28: ffff0000ccc6c000 x27: dfff800000000000 [ 80.772610][ T5381] x26: ffff0000ccc6c024 x25: ffff0000cd05c000 x24: 1fffe0001bdcc5ef [ 80.773904][ T5381] x23: 1fffe0001bdcc5ef x22: ffff0000dee62f78 x21: 00000000fffffff4 [ 80.775196][ T5381] x20: 0000000000000051 x19: ffff0000dee62f20 x18: 0000000000000001 [ 80.776443][ T5381] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 80.777718][ T5381] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 80.779077][ T5381] x11: 0000000000000000 x10: 0000000000000000 x9 : e4a14f0946e08c00 [ 80.780411][ T5381] x8 : e4a14f0946e08c00 x7 : 0000000000000001 x6 : 0000000000000001 [ 80.781740][ T5381] x5 : ffff800021bd70d8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 80.782982][ T5381] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 80.784302][ T5381] Call trace: [ 80.784803][ T5381] btrfs_run_delayed_refs+0x3e4/0x458 [ 80.785624][ T5381] btrfs_commit_transaction+0x1e0/0x3078 [ 80.786595][ T5381] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 80.787457][ T5381] btrfs_ioctl+0x50c/0xa8c [ 80.788191][ T5381] __arm64_sys_ioctl+0x14c/0x1c8 [ 80.788986][ T5381] invoke_syscall+0x98/0x2b0 [ 80.789740][ T5381] el0_svc_common+0x138/0x258 [ 80.790632][ T5381] do_el0_svc+0x58/0x13c [ 80.791342][ T5381] el0_svc+0x78/0x1d0 [ 80.791967][ T5381] el0t_64_sync_handler+0xcc/0xe4 [ 80.792768][ T5381] el0t_64_sync+0x1a0/0x1a4 [ 80.793528][ T5381] irq event stamp: 79076 [ 80.794257][ T5381] hardirqs last enabled at (79075): [] __up_console_sem+0xb4/0xfc [ 80.795838][ T5381] hardirqs last disabled at (79076): [] el1_dbg+0x24/0x80 [ 80.797265][ T5381] softirqs last enabled at (79042): [] handle_softirqs+0xa40/0xbe4 [ 80.798803][ T5381] softirqs last disabled at (79019): [] __irq_exit_rcu+0x240/0x43c [ 80.800333][ T5381] ---[ end trace d8aa63e12cf4dec7 ]--- [ 80.801471][ T5381] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 80.803091][ T5381] BTRFS info (device loop0): forced readonly [ 80.933521][ T5404] loop0: detected capacity change from 0 to 32768 [ 81.017639][ T5404] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.38 (5404) [ 81.021458][ T5404] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 81.022844][ T5404] BTRFS info (device loop0): using free space tree [ 81.024053][ T5404] BTRFS info (device loop0): has skinny extents [ 81.031359][ T5404] BTRFS info (device loop0): enabling ssd optimizations [ 81.034705][ T5404] FAULT_INJECTION: forcing a failure. [ 81.034705][ T5404] name failslab, interval 1, probability 0, space 0, times 0 [ 81.037181][ T5404] CPU: 0 PID: 5404 Comm: syz.0.38 Tainted: G W syzkaller #0 [ 81.038551][ T5404] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 81.040141][ T5404] Call trace: [ 81.040656][ T5404] dump_backtrace+0x0/0x458 [ 81.041332][ T5404] show_stack+0x2c/0x3c [ 81.042050][ T5404] __dump_stack+0x30/0x40 [ 81.042800][ T5404] dump_stack_lvl+0xf4/0x15c [ 81.043578][ T5404] dump_stack+0x1c/0x5c [ 81.044268][ T5404] should_fail+0x3bc/0x514 [ 81.045011][ T5404] __should_failslab+0xbc/0x10c [ 81.045793][ T5404] should_failslab+0x10/0x28 [ 81.046576][ T5404] slab_pre_alloc_hook+0x64/0xe8 [ 81.047368][ T5404] kmem_cache_alloc+0x94/0x3d4 [ 81.048138][ T5404] btrfs_alloc_path+0x5c/0x68 [ 81.048871][ T5404] __btrfs_run_delayed_refs+0xe70/0x348c [ 81.049777][ T5404] btrfs_run_delayed_refs+0x124/0x458 [ 81.050639][ T5404] btrfs_commit_transaction+0x1e0/0x3078 [ 81.051491][ T5404] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 81.052386][ T5404] btrfs_ioctl+0x50c/0xa8c [ 81.053127][ T5404] __arm64_sys_ioctl+0x14c/0x1c8 [ 81.053969][ T5404] invoke_syscall+0x98/0x2b0 [ 81.054708][ T5404] el0_svc_common+0x138/0x258 [ 81.055436][ T5404] do_el0_svc+0x58/0x13c [ 81.056159][ T5404] el0_svc+0x78/0x1d0 [ 81.056803][ T5404] el0t_64_sync_handler+0xcc/0xe4 [ 81.057608][ T5404] el0t_64_sync+0x1a0/0x1a4 [ 81.059967][ T5404] BTRFS error (device loop0): failed to run delayed ref for logical 5242880 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 81.061969][ T5404] ------------[ cut here ]------------ [ 81.062843][ T5404] WARNING: CPU: 0 PID: 5404 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 81.064495][ T5404] Modules linked in: [ 81.065140][ T5404] CPU: 0 PID: 5404 Comm: syz.0.38 Tainted: G W syzkaller #0 [ 81.066529][ T5404] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 81.068155][ T5404] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 81.069431][ T5404] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 81.070313][ T5404] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 81.071170][ T5404] sp : ffff800021bd77d0 [ 81.071800][ T5404] x29: ffff800021bd77e0 x28: ffff0000dd10a000 x27: dfff800000000000 [ 81.073074][ T5404] x26: ffff0000dd10a024 x25: ffff0000d1d90000 x24: 1fffe0001bdb7abb [ 81.074328][ T5404] x23: 1fffe0001bdb7abb x22: ffff0000dedbd5d8 x21: 00000000fffffff4 [ 81.075546][ T5404] x20: 0000000000000051 x19: ffff0000dedbd580 x18: 0000000000000001 [ 81.076773][ T5404] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 81.077974][ T5404] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 81.079197][ T5404] x11: 0000000000000000 x10: 0000000000000000 x9 : 049729c8af43fa00 [ 81.080446][ T5404] x8 : 049729c8af43fa00 x7 : 0000000000000001 x6 : 0000000000000001 [ 81.081646][ T5404] x5 : ffff800021bd70d8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 81.082913][ T5404] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 81.084189][ T5404] Call trace: [ 81.084679][ T5404] btrfs_run_delayed_refs+0x3e4/0x458 [ 81.085468][ T5404] btrfs_commit_transaction+0x1e0/0x3078 [ 81.086329][ T5404] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 81.087160][ T5404] btrfs_ioctl+0x50c/0xa8c [ 81.087838][ T5404] __arm64_sys_ioctl+0x14c/0x1c8 [ 81.088731][ T5404] invoke_syscall+0x98/0x2b0 [ 81.089513][ T5404] el0_svc_common+0x138/0x258 [ 81.090357][ T5404] do_el0_svc+0x58/0x13c [ 81.091083][ T5404] el0_svc+0x78/0x1d0 [ 81.091761][ T5404] el0t_64_sync_handler+0xcc/0xe4 [ 81.092621][ T5404] el0t_64_sync+0x1a0/0x1a4 [ 81.093336][ T5404] irq event stamp: 79144 [ 81.094040][ T5404] hardirqs last enabled at (79143): [] __up_console_sem+0xb4/0xfc [ 81.095605][ T5404] hardirqs last disabled at (79144): [] el1_dbg+0x24/0x80 [ 81.097016][ T5404] softirqs last enabled at (79110): [] handle_softirqs+0xa40/0xbe4 [ 81.098578][ T5404] softirqs last disabled at (79091): [] __irq_exit_rcu+0x240/0x43c [ 81.100114][ T5404] ---[ end trace d8aa63e12cf4dec8 ]--- [ 81.103061][ T5404] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 81.104480][ T5404] BTRFS info (device loop0): forced readonly [ 81.262765][ T5426] loop0: detected capacity change from 0 to 32768 [ 81.296731][ T5426] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.39 (5426) [ 81.337889][ T5426] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 81.339421][ T5426] BTRFS info (device loop0): using free space tree [ 81.340464][ T5426] BTRFS info (device loop0): has skinny extents [ 81.347478][ T5426] BTRFS info (device loop0): enabling ssd optimizations [ 81.350872][ T5426] FAULT_INJECTION: forcing a failure. [ 81.350872][ T5426] name failslab, interval 1, probability 0, space 0, times 0 [ 81.352995][ T5426] CPU: 0 PID: 5426 Comm: syz.0.39 Tainted: G W syzkaller #0 [ 81.354323][ T5426] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 81.355911][ T5426] Call trace: [ 81.356452][ T5426] dump_backtrace+0x0/0x458 [ 81.357217][ T5426] show_stack+0x2c/0x3c [ 81.357903][ T5426] __dump_stack+0x30/0x40 [ 81.358622][ T5426] dump_stack_lvl+0xf4/0x15c [ 81.359359][ T5426] dump_stack+0x1c/0x5c [ 81.360003][ T5426] should_fail+0x3bc/0x514 [ 81.360742][ T5426] __should_failslab+0xbc/0x10c [ 81.361564][ T5426] should_failslab+0x10/0x28 [ 81.362358][ T5426] slab_pre_alloc_hook+0x64/0xe8 [ 81.363162][ T5426] kmem_cache_alloc+0x94/0x3d4 [ 81.363973][ T5426] btrfs_alloc_path+0x5c/0x68 [ 81.364756][ T5426] __btrfs_free_extent+0x1a8/0x1abc [ 81.365643][ T5426] __btrfs_run_delayed_refs+0xbf0/0x348c [ 81.366589][ T5426] btrfs_run_delayed_refs+0x124/0x458 [ 81.367484][ T5426] btrfs_commit_transaction+0x1e0/0x3078 [ 81.368378][ T5426] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 81.369294][ T5426] btrfs_ioctl+0x50c/0xa8c [ 81.370017][ T5426] __arm64_sys_ioctl+0x14c/0x1c8 [ 81.370876][ T5426] invoke_syscall+0x98/0x2b0 [ 81.371641][ T5426] el0_svc_common+0x138/0x258 [ 81.372450][ T5426] do_el0_svc+0x58/0x13c [ 81.373191][ T5426] el0_svc+0x78/0x1d0 [ 81.373857][ T5426] el0t_64_sync_handler+0xcc/0xe4 [ 81.374710][ T5426] el0t_64_sync+0x1a0/0x1a4 [ 81.375680][ T5426] BTRFS error (device loop0): failed to run delayed ref for logical 5255168 num_bytes 4096 type 176 action 2 ref_mod 1: -12 [ 81.377744][ T5426] ------------[ cut here ]------------ [ 81.378691][ T5426] WARNING: CPU: 0 PID: 5426 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 81.380266][ T5426] Modules linked in: [ 81.380892][ T5426] CPU: 0 PID: 5426 Comm: syz.0.39 Tainted: G W syzkaller #0 [ 81.382296][ T5426] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 81.383928][ T5426] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 81.385089][ T5426] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 81.385975][ T5426] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 81.386908][ T5426] sp : ffff800021bd77d0 [ 81.387531][ T5426] x29: ffff800021bd77e0 x28: ffff0000ccc6a000 x27: dfff800000000000 [ 81.388801][ T5426] x26: ffff0000ccc6a024 x25: ffff0000d9bc0000 x24: 1fffe0001bdb7afd [ 81.390099][ T5426] x23: 1fffe0001bdb7afd x22: ffff0000dedbd7e8 x21: 00000000fffffff4 [ 81.391378][ T5426] x20: 0000000000000051 x19: ffff0000dedbd790 x18: 0000000000000001 [ 81.392670][ T5426] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 81.394024][ T5426] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 81.395457][ T5426] x11: 0000000000000000 x10: 0000000000000000 x9 : 7c065c1150e6c200 [ 81.396804][ T5426] x8 : 7c065c1150e6c200 x7 : 0000000000000001 x6 : 0000000000000001 [ 81.398225][ T5426] x5 : ffff800021bd70d8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 81.399589][ T5426] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 81.400849][ T5426] Call trace: [ 81.401361][ T5426] btrfs_run_delayed_refs+0x3e4/0x458 [ 81.402213][ T5426] btrfs_commit_transaction+0x1e0/0x3078 [ 81.403116][ T5426] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 81.403979][ T5426] btrfs_ioctl+0x50c/0xa8c [ 81.404695][ T5426] __arm64_sys_ioctl+0x14c/0x1c8 [ 81.405502][ T5426] invoke_syscall+0x98/0x2b0 [ 81.406283][ T5426] el0_svc_common+0x138/0x258 [ 81.407085][ T5426] do_el0_svc+0x58/0x13c [ 81.407819][ T5426] el0_svc+0x78/0x1d0 [ 81.408465][ T5426] el0t_64_sync_handler+0xcc/0xe4 [ 81.409294][ T5426] el0t_64_sync+0x1a0/0x1a4 [ 81.410063][ T5426] irq event stamp: 78676 [ 81.410831][ T5426] hardirqs last enabled at (78675): [] __up_console_sem+0xb4/0xfc [ 81.412416][ T5426] hardirqs last disabled at (78676): [] el1_dbg+0x24/0x80 [ 81.413915][ T5426] softirqs last enabled at (78644): [] handle_softirqs+0xa40/0xbe4 [ 81.415553][ T5426] softirqs last disabled at (78631): [] __irq_exit_rcu+0x240/0x43c [ 81.417074][ T5426] ---[ end trace d8aa63e12cf4dec9 ]--- [ 81.418576][ T5426] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 81.420056][ T5426] BTRFS info (device loop0): forced readonly [ 81.554442][ T5448] loop0: detected capacity change from 0 to 32768 [ 81.561658][ T5448] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.40 (5448) [ 81.566591][ T5448] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 81.568088][ T5448] BTRFS info (device loop0): using free space tree [ 81.569099][ T5448] BTRFS info (device loop0): has skinny extents [ 81.582919][ T5448] BTRFS info (device loop0): enabling ssd optimizations [ 81.588402][ T5448] FAULT_INJECTION: forcing a failure. [ 81.588402][ T5448] name failslab, interval 1, probability 0, space 0, times 0 [ 81.590468][ T5448] CPU: 0 PID: 5448 Comm: syz.0.40 Tainted: G W syzkaller #0 [ 81.591858][ T5448] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 81.593472][ T5448] Call trace: [ 81.594036][ T5448] dump_backtrace+0x0/0x458 [ 81.594728][ T5448] show_stack+0x2c/0x3c [ 81.595336][ T5448] __dump_stack+0x30/0x40 [ 81.596039][ T5448] dump_stack_lvl+0xf4/0x15c [ 81.596816][ T5448] dump_stack+0x1c/0x5c [ 81.597447][ T5448] should_fail+0x3bc/0x514 [ 81.598118][ T5448] __should_failslab+0xbc/0x10c [ 81.598825][ T5448] should_failslab+0x10/0x28 [ 81.599547][ T5448] slab_pre_alloc_hook+0x64/0xe8 [ 81.600363][ T5448] kmem_cache_alloc+0x94/0x3d4 [ 81.601037][ T5448] btrfs_alloc_path+0x5c/0x68 [ 81.601743][ T5448] __btrfs_run_delayed_refs+0xe70/0x348c [ 81.602586][ T5448] btrfs_run_delayed_refs+0x124/0x458 [ 81.603430][ T5448] btrfs_commit_transaction+0x1e0/0x3078 [ 81.604240][ T5448] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 81.605096][ T5448] btrfs_ioctl+0x50c/0xa8c [ 81.605785][ T5448] __arm64_sys_ioctl+0x14c/0x1c8 [ 81.606562][ T5448] invoke_syscall+0x98/0x2b0 [ 81.607276][ T5448] el0_svc_common+0x138/0x258 [ 81.608007][ T5448] do_el0_svc+0x58/0x13c [ 81.608708][ T5448] el0_svc+0x78/0x1d0 [ 81.609289][ T5448] el0t_64_sync_handler+0xcc/0xe4 [ 81.610038][ T5448] el0t_64_sync+0x1a0/0x1a4 [ 81.610882][ T5448] BTRFS error (device loop0): failed to run delayed ref for logical 5242880 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 81.612905][ T5448] ------------[ cut here ]------------ [ 81.613852][ T5448] WARNING: CPU: 0 PID: 5448 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 81.615375][ T5448] Modules linked in: [ 81.615999][ T5448] CPU: 0 PID: 5448 Comm: syz.0.40 Tainted: G W syzkaller #0 [ 81.617451][ T5448] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 81.619048][ T5448] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 81.620252][ T5448] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 81.621110][ T5448] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 81.622045][ T5448] sp : ffff800021bd77d0 [ 81.622705][ T5448] x29: ffff800021bd77e0 x28: ffff0000d9dbc000 x27: dfff800000000000 [ 81.624129][ T5448] x26: ffff0000d9dbc024 x25: ffff0000d9bc0000 x24: 1fffe0001bdb7bc3 [ 81.625501][ T5448] x23: 1fffe0001bdb7bc3 x22: ffff0000dedbde18 x21: 00000000fffffff4 [ 81.626836][ T5448] x20: 0000000000000051 x19: ffff0000dedbddc0 x18: 0000000000000001 [ 81.628182][ T5448] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 81.629498][ T5448] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 81.630811][ T5448] x11: 0000000000000000 x10: 0000000000000000 x9 : 5975a3cc9d143800 [ 81.632097][ T5448] x8 : 5975a3cc9d143800 x7 : 0000000000000001 x6 : 0000000000000001 [ 81.633394][ T5448] x5 : ffff800021bd70d8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 81.634717][ T5448] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 81.636057][ T5448] Call trace: [ 81.636542][ T5448] btrfs_run_delayed_refs+0x3e4/0x458 [ 81.637417][ T5448] btrfs_commit_transaction+0x1e0/0x3078 [ 81.638335][ T5448] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 81.639170][ T5448] btrfs_ioctl+0x50c/0xa8c [ 81.639866][ T5448] __arm64_sys_ioctl+0x14c/0x1c8 [ 81.640663][ T5448] invoke_syscall+0x98/0x2b0 [ 81.641409][ T5448] el0_svc_common+0x138/0x258 [ 81.642161][ T5448] do_el0_svc+0x58/0x13c [ 81.642879][ T5448] el0_svc+0x78/0x1d0 [ 81.643525][ T5448] el0t_64_sync_handler+0xcc/0xe4 [ 81.644350][ T5448] el0t_64_sync+0x1a0/0x1a4 [ 81.645128][ T5448] irq event stamp: 79166 [ 81.645846][ T5448] hardirqs last enabled at (79165): [] __up_console_sem+0xb4/0xfc [ 81.647463][ T5448] hardirqs last disabled at (79166): [] el1_dbg+0x24/0x80 [ 81.648883][ T5448] softirqs last enabled at (79132): [] handle_softirqs+0xa40/0xbe4 [ 81.650547][ T5448] softirqs last disabled at (79115): [] __irq_exit_rcu+0x240/0x43c [ 81.652160][ T5448] ---[ end trace d8aa63e12cf4deca ]--- [ 81.653765][ T5448] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 81.655338][ T5448] BTRFS info (device loop0): forced readonly [ 81.825567][ T5470] loop0: detected capacity change from 0 to 32768 [ 81.878519][ T5470] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.41 (5470) [ 81.881795][ T5470] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 81.883323][ T5470] BTRFS info (device loop0): using free space tree [ 81.884373][ T5470] BTRFS info (device loop0): has skinny extents [ 81.895164][ T5470] BTRFS info (device loop0): enabling ssd optimizations [ 81.899384][ T5470] FAULT_INJECTION: forcing a failure. [ 81.899384][ T5470] name failslab, interval 1, probability 0, space 0, times 0 [ 81.901258][ T5470] CPU: 0 PID: 5470 Comm: syz.0.41 Tainted: G W syzkaller #0 [ 81.902630][ T5470] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 81.904279][ T5470] Call trace: [ 81.904852][ T5470] dump_backtrace+0x0/0x458 [ 81.905647][ T5470] show_stack+0x2c/0x3c [ 81.906367][ T5470] __dump_stack+0x30/0x40 [ 81.907086][ T5470] dump_stack_lvl+0xf4/0x15c [ 81.907882][ T5470] dump_stack+0x1c/0x5c [ 81.908582][ T5470] should_fail+0x3bc/0x514 [ 81.909314][ T5470] __should_failslab+0xbc/0x10c [ 81.910105][ T5470] should_failslab+0x10/0x28 [ 81.910837][ T5470] slab_pre_alloc_hook+0x64/0xe8 [ 81.911604][ T5470] kmem_cache_alloc+0x94/0x3d4 [ 81.912447][ T5470] btrfs_alloc_path+0x5c/0x68 [ 81.913290][ T5470] __btrfs_run_delayed_refs+0xe70/0x348c [ 81.914275][ T5470] btrfs_run_delayed_refs+0x124/0x458 [ 81.915205][ T5470] btrfs_commit_transaction+0x1e0/0x3078 [ 81.916138][ T5470] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 81.917062][ T5470] btrfs_ioctl+0x50c/0xa8c [ 81.917836][ T5470] __arm64_sys_ioctl+0x14c/0x1c8 [ 81.918689][ T5470] invoke_syscall+0x98/0x2b0 [ 81.919488][ T5470] el0_svc_common+0x138/0x258 [ 81.920274][ T5470] do_el0_svc+0x58/0x13c [ 81.920978][ T5470] el0_svc+0x78/0x1d0 [ 81.921609][ T5470] el0t_64_sync_handler+0xcc/0xe4 [ 81.922464][ T5470] el0t_64_sync+0x1a0/0x1a4 [ 81.924029][ T5470] BTRFS error (device loop0): failed to run delayed ref for logical 5242880 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 81.926105][ T5470] ------------[ cut here ]------------ [ 81.927139][ T5470] WARNING: CPU: 0 PID: 5470 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 81.928708][ T5470] Modules linked in: [ 81.929327][ T5470] CPU: 0 PID: 5470 Comm: syz.0.41 Tainted: G W syzkaller #0 [ 81.930729][ T5470] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 81.932398][ T5470] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 81.933707][ T5470] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 81.934642][ T5470] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 81.935572][ T5470] sp : ffff800021f477d0 [ 81.936207][ T5470] x29: ffff800021f477e0 x28: ffff0000d9dbf000 x27: dfff800000000000 [ 81.937488][ T5470] x26: ffff0000d9dbf024 x25: ffff0000d4c54000 x24: 1fffe0001bdb7bef [ 81.938722][ T5470] x23: 1fffe0001bdb7bef x22: ffff0000dedbdf78 x21: 00000000fffffff4 [ 81.939987][ T5470] x20: 0000000000000051 x19: ffff0000dedbdf20 x18: 0000000000000001 [ 81.941298][ T5470] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 81.942589][ T5470] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 81.943926][ T5470] x11: 0000000000000000 x10: 0000000000000000 x9 : a2129ad9c167f600 [ 81.945321][ T5470] x8 : a2129ad9c167f600 x7 : 0000000000000001 x6 : 0000000000000001 [ 81.946707][ T5470] x5 : ffff800021f470d8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 81.948104][ T5470] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 81.949486][ T5470] Call trace: [ 81.950048][ T5470] btrfs_run_delayed_refs+0x3e4/0x458 [ 81.950934][ T5470] btrfs_commit_transaction+0x1e0/0x3078 [ 81.951909][ T5470] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 81.952772][ T5470] btrfs_ioctl+0x50c/0xa8c [ 81.953529][ T5470] __arm64_sys_ioctl+0x14c/0x1c8 [ 81.954382][ T5470] invoke_syscall+0x98/0x2b0 [ 81.955082][ T5470] el0_svc_common+0x138/0x258 [ 81.955801][ T5470] do_el0_svc+0x58/0x13c [ 81.956494][ T5470] el0_svc+0x78/0x1d0 [ 81.957111][ T5470] el0t_64_sync_handler+0xcc/0xe4 [ 81.957954][ T5470] el0t_64_sync+0x1a0/0x1a4 [ 81.958688][ T5470] irq event stamp: 79266 [ 81.959437][ T5470] hardirqs last enabled at (79265): [] __up_console_sem+0xb4/0xfc [ 81.960947][ T5470] hardirqs last disabled at (79266): [] el1_dbg+0x24/0x80 [ 81.962296][ T5470] softirqs last enabled at (79244): [] handle_softirqs+0xa40/0xbe4 [ 81.963904][ T5470] softirqs last disabled at (79231): [] __irq_exit_rcu+0x240/0x43c [ 81.965531][ T5470] ---[ end trace d8aa63e12cf4decb ]--- [ 81.966952][ T5470] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 81.968356][ T5470] BTRFS info (device loop0): forced readonly [ 82.216715][ T5492] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.42 (5492) [ 82.219988][ T5492] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 82.225211][ T5492] BTRFS info (device loop0): using free space tree [ 82.226713][ T5492] BTRFS info (device loop0): has skinny extents [ 82.234642][ T5492] BTRFS info (device loop0): enabling ssd optimizations [ 82.238608][ T5492] FAULT_INJECTION: forcing a failure. [ 82.238608][ T5492] name failslab, interval 1, probability 0, space 0, times 0 [ 82.240671][ T5492] CPU: 1 PID: 5492 Comm: syz.0.42 Tainted: G W syzkaller #0 [ 82.242085][ T5492] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 82.243680][ T5492] Call trace: [ 82.244199][ T5492] dump_backtrace+0x0/0x458 [ 82.244861][ T5492] show_stack+0x2c/0x3c [ 82.245590][ T5492] __dump_stack+0x30/0x40 [ 82.246331][ T5492] dump_stack_lvl+0xf4/0x15c [ 82.247077][ T5492] dump_stack+0x1c/0x5c [ 82.247774][ T5492] should_fail+0x3bc/0x514 [ 82.248447][ T5492] __should_failslab+0xbc/0x10c [ 82.249229][ T5492] should_failslab+0x10/0x28 [ 82.249987][ T5492] slab_pre_alloc_hook+0x64/0xe8 [ 82.250778][ T5492] kmem_cache_alloc+0x94/0x3d4 [ 82.251585][ T5492] btrfs_alloc_path+0x5c/0x68 [ 82.252346][ T5492] __btrfs_free_extent+0x1a8/0x1abc [ 82.253164][ T5492] __btrfs_run_delayed_refs+0xbf0/0x348c [ 82.254070][ T5492] btrfs_run_delayed_refs+0x124/0x458 [ 82.254960][ T5492] btrfs_commit_transaction+0x1e0/0x3078 [ 82.255871][ T5492] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 82.256806][ T5492] btrfs_ioctl+0x50c/0xa8c [ 82.257500][ T5492] __arm64_sys_ioctl+0x14c/0x1c8 [ 82.258278][ T5492] invoke_syscall+0x98/0x2b0 [ 82.259041][ T5492] el0_svc_common+0x138/0x258 [ 82.259748][ T5492] do_el0_svc+0x58/0x13c [ 82.260492][ T5492] el0_svc+0x78/0x1d0 [ 82.261219][ T5492] el0t_64_sync_handler+0xcc/0xe4 [ 82.262076][ T5492] el0t_64_sync+0x1a0/0x1a4 [ 82.264260][ T5492] BTRFS error (device loop0): failed to run delayed ref for logical 5255168 num_bytes 4096 type 176 action 2 ref_mod 1: -12 [ 82.266589][ T5492] ------------[ cut here ]------------ [ 82.267565][ T5492] WARNING: CPU: 1 PID: 5492 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 82.269128][ T5492] Modules linked in: [ 82.269748][ T5492] CPU: 1 PID: 5492 Comm: syz.0.42 Tainted: G W syzkaller #0 [ 82.271131][ T5492] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 82.272592][ T5492] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 82.273893][ T5492] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 82.274801][ T5492] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 82.275693][ T5492] sp : ffff8000222777d0 [ 82.276341][ T5492] x29: ffff8000222777e0 x28: ffff0000d9dbb000 x27: dfff800000000000 [ 82.277622][ T5492] x26: ffff0000d9dbb024 x25: ffff0000de4f0000 x24: 1fffe0001bdcc44d [ 82.278941][ T5492] x23: 1fffe0001bdcc44d x22: ffff0000dee62268 x21: 00000000fffffff4 [ 82.280207][ T5492] x20: 0000000000000051 x19: ffff0000dee62210 x18: 0000000000000001 [ 82.281479][ T5492] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 82.282764][ T5492] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 82.284016][ T5492] x11: 0000000000000000 x10: 0000000000000000 x9 : bc18f9c681d7ca00 [ 82.285275][ T5492] x8 : bc18f9c681d7ca00 x7 : 0000000000000001 x6 : 0000000000000001 [ 82.286569][ T5492] x5 : ffff8000222770d8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 82.287958][ T5492] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 82.289300][ T5492] Call trace: [ 82.289872][ T5492] btrfs_run_delayed_refs+0x3e4/0x458 [ 82.290707][ T5492] btrfs_commit_transaction+0x1e0/0x3078 [ 82.291680][ T5492] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 82.292516][ T5492] btrfs_ioctl+0x50c/0xa8c [ 82.293171][ T5492] __arm64_sys_ioctl+0x14c/0x1c8 [ 82.293946][ T5492] invoke_syscall+0x98/0x2b0 [ 82.294721][ T5492] el0_svc_common+0x138/0x258 [ 82.295468][ T5492] do_el0_svc+0x58/0x13c [ 82.296242][ T5492] el0_svc+0x78/0x1d0 [ 82.296855][ T5492] el0t_64_sync_handler+0xcc/0xe4 [ 82.297706][ T5492] el0t_64_sync+0x1a0/0x1a4 [ 82.298487][ T5492] irq event stamp: 78654 [ 82.299202][ T5492] hardirqs last enabled at (78653): [] __up_console_sem+0xb4/0xfc [ 82.300776][ T5492] hardirqs last disabled at (78654): [] el1_dbg+0x24/0x80 [ 82.302175][ T5492] softirqs last enabled at (78632): [] handle_softirqs+0xa40/0xbe4 [ 82.303785][ T5492] softirqs last disabled at (78583): [] __irq_exit_rcu+0x240/0x43c [ 82.305238][ T5492] ---[ end trace d8aa63e12cf4decc ]--- [ 82.308086][ T5492] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 82.309630][ T5492] BTRFS info (device loop0): forced readonly [ 82.521171][ T5514] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.43 (5514) [ 82.524385][ T5514] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 82.525860][ T5514] BTRFS info (device loop0): using free space tree [ 82.526973][ T5514] BTRFS info (device loop0): has skinny extents [ 82.536279][ T5514] BTRFS info (device loop0): enabling ssd optimizations [ 82.539823][ T5514] FAULT_INJECTION: forcing a failure. [ 82.539823][ T5514] name failslab, interval 1, probability 0, space 0, times 0 [ 82.541872][ T5514] CPU: 0 PID: 5514 Comm: syz.0.43 Tainted: G W syzkaller #0 [ 82.543203][ T5514] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 82.544816][ T5514] Call trace: [ 82.545352][ T5514] dump_backtrace+0x0/0x458 [ 82.546140][ T5514] show_stack+0x2c/0x3c [ 82.546863][ T5514] __dump_stack+0x30/0x40 [ 82.547640][ T5514] dump_stack_lvl+0xf4/0x15c [ 82.548445][ T5514] dump_stack+0x1c/0x5c [ 82.549157][ T5514] should_fail+0x3bc/0x514 [ 82.549908][ T5514] __should_failslab+0xbc/0x10c [ 82.550736][ T5514] should_failslab+0x10/0x28 [ 82.551483][ T5514] slab_pre_alloc_hook+0x64/0xe8 [ 82.552304][ T5514] kmem_cache_alloc+0x94/0x3d4 [ 82.553051][ T5514] start_transaction+0x4d0/0x13ec [ 82.553941][ T5514] btrfs_start_transaction+0x34/0x44 [ 82.554856][ T5514] btrfs_ioctl_set_fslabel+0x2bc/0x3d0 [ 82.555704][ T5514] btrfs_ioctl+0x50c/0xa8c [ 82.556377][ T5514] __arm64_sys_ioctl+0x14c/0x1c8 [ 82.557218][ T5514] invoke_syscall+0x98/0x2b0 [ 82.557977][ T5514] el0_svc_common+0x138/0x258 [ 82.558861][ T5514] do_el0_svc+0x58/0x13c [ 82.559576][ T5514] el0_svc+0x78/0x1d0 [ 82.560169][ T5514] el0t_64_sync_handler+0xcc/0xe4 [ 82.561009][ T5514] el0t_64_sync+0x1a0/0x1a4 [ 82.603739][ T4882] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 10 /dev/loop0 scanned by udevd (4882) [ 82.771187][ T5535] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 82.772739][ T5535] BTRFS info (device loop0): using free space tree [ 82.773725][ T5535] BTRFS info (device loop0): has skinny extents [ 82.781931][ T5535] BTRFS info (device loop0): enabling ssd optimizations [ 82.785193][ T5535] FAULT_INJECTION: forcing a failure. [ 82.785193][ T5535] name failslab, interval 1, probability 0, space 0, times 0 [ 82.787413][ T5535] CPU: 0 PID: 5535 Comm: syz.0.44 Tainted: G W syzkaller #0 [ 82.788738][ T5535] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 82.790364][ T5535] Call trace: [ 82.790854][ T5535] dump_backtrace+0x0/0x458 [ 82.791571][ T5535] show_stack+0x2c/0x3c [ 82.792269][ T5535] __dump_stack+0x30/0x40 [ 82.792928][ T5535] dump_stack_lvl+0xf4/0x15c [ 82.793562][ T5535] dump_stack+0x1c/0x5c [ 82.794198][ T5535] should_fail+0x3bc/0x514 [ 82.794960][ T5535] __should_failslab+0xbc/0x10c [ 82.795738][ T5535] should_failslab+0x10/0x28 [ 82.796540][ T5535] slab_pre_alloc_hook+0x64/0xe8 [ 82.797411][ T5535] kmem_cache_alloc+0x94/0x3d4 [ 82.798207][ T5535] btrfs_alloc_path+0x5c/0x68 [ 82.798972][ T5535] __btrfs_run_delayed_refs+0xe70/0x348c [ 82.799908][ T5535] btrfs_run_delayed_refs+0x124/0x458 [ 82.800802][ T5535] btrfs_commit_transaction+0x1e0/0x3078 [ 82.801677][ T5535] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 82.802472][ T5535] btrfs_ioctl+0x50c/0xa8c [ 82.803154][ T5535] __arm64_sys_ioctl+0x14c/0x1c8 [ 82.803956][ T5535] invoke_syscall+0x98/0x2b0 [ 82.804654][ T5535] el0_svc_common+0x138/0x258 [ 82.805442][ T5535] do_el0_svc+0x58/0x13c [ 82.806169][ T5535] el0_svc+0x78/0x1d0 [ 82.806877][ T5535] el0t_64_sync_handler+0xcc/0xe4 [ 82.807719][ T5535] el0t_64_sync+0x1a0/0x1a4 [ 82.809552][ T5535] BTRFS error (device loop0): failed to run delayed ref for logical 5242880 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 82.811612][ T5535] ------------[ cut here ]------------ [ 82.812569][ T5535] WARNING: CPU: 0 PID: 5535 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 82.814316][ T5535] Modules linked in: [ 82.814932][ T5535] CPU: 0 PID: 5535 Comm: syz.0.44 Tainted: G W syzkaller #0 [ 82.816269][ T5535] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 82.817909][ T5535] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 82.819159][ T5535] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 82.820066][ T5535] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 82.821020][ T5535] sp : ffff8000222777d0 [ 82.821710][ T5535] x29: ffff8000222777e0 x28: ffff0000c85f1000 x27: dfff800000000000 [ 82.823087][ T5535] x26: ffff0000c85f1024 x25: ffff0000db828000 x24: 1fffe0001bdb7aa5 [ 82.824446][ T5535] x23: 1fffe0001bdb7aa5 x22: ffff0000dedbd528 x21: 00000000fffffff4 [ 82.825744][ T5535] x20: 0000000000000051 x19: ffff0000dedbd4d0 x18: 0000000000000001 [ 82.827027][ T5535] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 82.828318][ T5535] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 82.829658][ T5535] x11: 0000000000000000 x10: 0000000000000000 x9 : e782116e2f22a300 [ 82.830932][ T5535] x8 : e782116e2f22a300 x7 : 0000000000000001 x6 : 0000000000000001 [ 82.832242][ T5535] x5 : ffff8000222770d8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 82.833534][ T5535] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 82.834902][ T5535] Call trace: [ 82.835459][ T5535] btrfs_run_delayed_refs+0x3e4/0x458 [ 82.836342][ T5535] btrfs_commit_transaction+0x1e0/0x3078 [ 82.837250][ T5535] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 82.838157][ T5535] btrfs_ioctl+0x50c/0xa8c [ 82.838970][ T5535] __arm64_sys_ioctl+0x14c/0x1c8 [ 82.839756][ T5535] invoke_syscall+0x98/0x2b0 [ 82.840568][ T5535] el0_svc_common+0x138/0x258 [ 82.841347][ T5535] do_el0_svc+0x58/0x13c [ 82.842028][ T5535] el0_svc+0x78/0x1d0 [ 82.842688][ T5535] el0t_64_sync_handler+0xcc/0xe4 [ 82.843552][ T5535] el0t_64_sync+0x1a0/0x1a4 [ 82.844344][ T5535] irq event stamp: 78952 [ 82.845045][ T5535] hardirqs last enabled at (78951): [] __up_console_sem+0xb4/0xfc [ 82.846609][ T5535] hardirqs last disabled at (78952): [] el1_dbg+0x24/0x80 [ 82.847984][ T5535] softirqs last enabled at (78912): [] handle_softirqs+0xa40/0xbe4 [ 82.849535][ T5535] softirqs last disabled at (78891): [] __irq_exit_rcu+0x240/0x43c [ 82.851034][ T5535] ---[ end trace d8aa63e12cf4decd ]--- [ 82.852777][ T5535] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 82.854230][ T5535] BTRFS info (device loop0): forced readonly [ 83.019733][ T5558] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.45 (5558) [ 83.023856][ T5558] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 83.026261][ T5558] BTRFS info (device loop0): using free space tree [ 83.027263][ T5558] BTRFS info (device loop0): has skinny extents [ 83.034348][ T5558] BTRFS info (device loop0): enabling ssd optimizations [ 83.038215][ T5558] FAULT_INJECTION: forcing a failure. [ 83.038215][ T5558] name failslab, interval 1, probability 0, space 0, times 0 [ 83.040092][ T5558] CPU: 0 PID: 5558 Comm: syz.0.45 Tainted: G W syzkaller #0 [ 83.041359][ T5558] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 83.043125][ T5558] Call trace: [ 83.043677][ T5558] dump_backtrace+0x0/0x458 [ 83.044462][ T5558] show_stack+0x2c/0x3c [ 83.045216][ T5558] __dump_stack+0x30/0x40 [ 83.045958][ T5558] dump_stack_lvl+0xf4/0x15c [ 83.046753][ T5558] dump_stack+0x1c/0x5c [ 83.047400][ T5558] should_fail+0x3bc/0x514 [ 83.048100][ T5558] __should_failslab+0xbc/0x10c [ 83.048890][ T5558] should_failslab+0x10/0x28 [ 83.049759][ T5558] slab_pre_alloc_hook+0x64/0xe8 [ 83.050673][ T5558] kmem_cache_alloc+0x94/0x3d4 [ 83.051454][ T5558] btrfs_alloc_path+0x5c/0x68 [ 83.052186][ T5558] __btrfs_run_delayed_refs+0xe70/0x348c [ 83.053077][ T5558] btrfs_run_delayed_refs+0x124/0x458 [ 83.054032][ T5558] btrfs_commit_transaction+0x1e0/0x3078 [ 83.054947][ T5558] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 83.055909][ T5558] btrfs_ioctl+0x50c/0xa8c [ 83.056649][ T5558] __arm64_sys_ioctl+0x14c/0x1c8 [ 83.057404][ T5558] invoke_syscall+0x98/0x2b0 [ 83.058101][ T5558] el0_svc_common+0x138/0x258 [ 83.058785][ T5558] do_el0_svc+0x58/0x13c [ 83.059469][ T5558] el0_svc+0x78/0x1d0 [ 83.060183][ T5558] el0t_64_sync_handler+0xcc/0xe4 [ 83.061015][ T5558] el0t_64_sync+0x1a0/0x1a4 [ 83.063315][ T5558] BTRFS error (device loop0): failed to run delayed ref for logical 5242880 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 83.065364][ T5558] ------------[ cut here ]------------ [ 83.066786][ T5558] WARNING: CPU: 0 PID: 5558 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 83.068375][ T5558] Modules linked in: [ 83.069000][ T5558] CPU: 0 PID: 5558 Comm: syz.0.45 Tainted: G W syzkaller #0 [ 83.070298][ T5558] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 83.071802][ T5558] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 83.073040][ T5558] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 83.074001][ T5558] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 83.074938][ T5558] sp : ffff8000229477d0 [ 83.075587][ T5558] x29: ffff8000229477e0 x28: ffff0000caa5b000 x27: dfff800000000000 [ 83.076826][ T5558] x26: ffff0000caa5b024 x25: ffff0000db828000 x24: 1fffe0001bdb7a79 [ 83.078166][ T5558] x23: 1fffe0001bdb7a79 x22: ffff0000dedbd3c8 x21: 00000000fffffff4 [ 83.079513][ T5558] x20: 0000000000000051 x19: ffff0000dedbd370 x18: 0000000000000001 [ 83.080845][ T5558] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 83.082147][ T5558] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 83.083433][ T5558] x11: 0000000000000000 x10: 0000000000000000 x9 : 7abe3170ee2f5400 [ 83.084808][ T5558] x8 : 7abe3170ee2f5400 x7 : 0000000000000001 x6 : 0000000000000001 [ 83.086068][ T5558] x5 : ffff8000229470d8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 83.087460][ T5558] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 83.088865][ T5558] Call trace: [ 83.089405][ T5558] btrfs_run_delayed_refs+0x3e4/0x458 [ 83.090300][ T5558] btrfs_commit_transaction+0x1e0/0x3078 [ 83.091274][ T5558] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 83.092185][ T5558] btrfs_ioctl+0x50c/0xa8c [ 83.092995][ T5558] __arm64_sys_ioctl+0x14c/0x1c8 [ 83.093836][ T5558] invoke_syscall+0x98/0x2b0 [ 83.094620][ T5558] el0_svc_common+0x138/0x258 [ 83.095378][ T5558] do_el0_svc+0x58/0x13c [ 83.096113][ T5558] el0_svc+0x78/0x1d0 [ 83.096802][ T5558] el0t_64_sync_handler+0xcc/0xe4 [ 83.097622][ T5558] el0t_64_sync+0x1a0/0x1a4 [ 83.098426][ T5558] irq event stamp: 78878 [ 83.099190][ T5558] hardirqs last enabled at (78877): [] __up_console_sem+0xb4/0xfc [ 83.100711][ T5558] hardirqs last disabled at (78878): [] el1_dbg+0x24/0x80 [ 83.102117][ T5558] softirqs last enabled at (78864): [] handle_softirqs+0xa40/0xbe4 [ 83.103651][ T5558] softirqs last disabled at (78833): [] __irq_exit_rcu+0x240/0x43c [ 83.105161][ T5558] ---[ end trace d8aa63e12cf4dece ]--- [ 83.108123][ T5558] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 83.109588][ T5558] BTRFS info (device loop0): forced readonly [ 83.252998][ T5580] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.46 (5580) [ 83.257757][ T5580] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 83.259140][ T5580] BTRFS info (device loop0): using free space tree [ 83.260330][ T5580] BTRFS info (device loop0): has skinny extents [ 83.273267][ T5580] BTRFS info (device loop0): enabling ssd optimizations [ 83.277115][ T5580] FAULT_INJECTION: forcing a failure. [ 83.277115][ T5580] name failslab, interval 1, probability 0, space 0, times 0 [ 83.279078][ T5580] CPU: 1 PID: 5580 Comm: syz.0.46 Tainted: G W syzkaller #0 [ 83.280462][ T5580] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 83.281999][ T5580] Call trace: [ 83.282561][ T5580] dump_backtrace+0x0/0x458 [ 83.283347][ T5580] show_stack+0x2c/0x3c [ 83.284024][ T5580] __dump_stack+0x30/0x40 [ 83.284758][ T5580] dump_stack_lvl+0xf4/0x15c [ 83.285539][ T5580] dump_stack+0x1c/0x5c [ 83.286214][ T5580] should_fail+0x3bc/0x514 [ 83.286940][ T5580] __should_failslab+0xbc/0x10c [ 83.287725][ T5580] should_failslab+0x10/0x28 [ 83.288501][ T5580] slab_pre_alloc_hook+0x64/0xe8 [ 83.289271][ T5580] kmem_cache_alloc+0x94/0x3d4 [ 83.290044][ T5580] start_transaction+0x4d0/0x13ec [ 83.290860][ T5580] btrfs_start_transaction+0x34/0x44 [ 83.291791][ T5580] btrfs_ioctl_set_fslabel+0x2bc/0x3d0 [ 83.292717][ T5580] btrfs_ioctl+0x50c/0xa8c [ 83.293452][ T5580] __arm64_sys_ioctl+0x14c/0x1c8 [ 83.294276][ T5580] invoke_syscall+0x98/0x2b0 [ 83.295136][ T5580] el0_svc_common+0x138/0x258 [ 83.295884][ T5580] do_el0_svc+0x58/0x13c [ 83.296527][ T5580] el0_svc+0x78/0x1d0 [ 83.297156][ T5580] el0t_64_sync_handler+0xcc/0xe4 [ 83.297942][ T5580] el0t_64_sync+0x1a0/0x1a4 [ 83.449101][ T5602] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.47 (5602) [ 83.453570][ T5602] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 83.455011][ T5602] BTRFS info (device loop0): using free space tree [ 83.456461][ T5602] BTRFS info (device loop0): has skinny extents [ 83.463507][ T5602] BTRFS info (device loop0): enabling ssd optimizations [ 83.467052][ T5602] FAULT_INJECTION: forcing a failure. [ 83.467052][ T5602] name failslab, interval 1, probability 0, space 0, times 0 [ 83.469087][ T5602] CPU: 0 PID: 5602 Comm: syz.0.47 Tainted: G W syzkaller #0 [ 83.470354][ T5602] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 83.472026][ T5602] Call trace: [ 83.472566][ T5602] dump_backtrace+0x0/0x458 [ 83.473319][ T5602] show_stack+0x2c/0x3c [ 83.474043][ T5602] __dump_stack+0x30/0x40 [ 83.474790][ T5602] dump_stack_lvl+0xf4/0x15c [ 83.475585][ T5602] dump_stack+0x1c/0x5c [ 83.476278][ T5602] should_fail+0x3bc/0x514 [ 83.476970][ T5602] __should_failslab+0xbc/0x10c [ 83.477787][ T5602] should_failslab+0x10/0x28 [ 83.478574][ T5602] slab_pre_alloc_hook+0x64/0xe8 [ 83.479365][ T5602] kmem_cache_alloc+0x94/0x3d4 [ 83.480143][ T5602] btrfs_alloc_path+0x5c/0x68 [ 83.480887][ T5602] __btrfs_run_delayed_refs+0xe70/0x348c [ 83.481801][ T5602] btrfs_run_delayed_refs+0x124/0x458 [ 83.482613][ T5602] btrfs_commit_transaction+0x1e0/0x3078 [ 83.483549][ T5602] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 83.484414][ T5602] btrfs_ioctl+0x50c/0xa8c [ 83.485103][ T5602] __arm64_sys_ioctl+0x14c/0x1c8 [ 83.485924][ T5602] invoke_syscall+0x98/0x2b0 [ 83.486660][ T5602] el0_svc_common+0x138/0x258 [ 83.487435][ T5602] do_el0_svc+0x58/0x13c [ 83.488227][ T5602] el0_svc+0x78/0x1d0 [ 83.488846][ T5602] el0t_64_sync_handler+0xcc/0xe4 [ 83.489642][ T5602] el0t_64_sync+0x1a0/0x1a4 [ 83.492475][ T5602] BTRFS error (device loop0): failed to run delayed ref for logical 5242880 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 83.494564][ T5602] ------------[ cut here ]------------ [ 83.495803][ T5602] WARNING: CPU: 0 PID: 5602 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 83.497380][ T5602] Modules linked in: [ 83.498030][ T5602] CPU: 0 PID: 5602 Comm: syz.0.47 Tainted: G W syzkaller #0 [ 83.499385][ T5602] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 83.500977][ T5602] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 83.502354][ T5602] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 83.503276][ T5602] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 83.504268][ T5602] sp : ffff800022db77d0 [ 83.504941][ T5602] x29: ffff800022db77e0 x28: ffff0000c85f4000 x27: dfff800000000000 [ 83.506309][ T5602] x26: ffff0000c85f4024 x25: ffff0000d6f10000 x24: 1fffe0001bdb7a37 [ 83.507606][ T5602] x23: 1fffe0001bdb7a37 x22: ffff0000dedbd1b8 x21: 00000000fffffff4 [ 83.508965][ T5602] x20: 0000000000000051 x19: ffff0000dedbd160 x18: 0000000000000001 [ 83.510298][ T5602] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 83.511688][ T5602] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 83.513035][ T5602] x11: 0000000000000000 x10: 0000000000000000 x9 : ff47aafe6ed26200 [ 83.514374][ T5602] x8 : ff47aafe6ed26200 x7 : 0000000000000001 x6 : 0000000000000001 [ 83.515718][ T5602] x5 : ffff800022db70d8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 83.517002][ T5602] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 83.518298][ T5602] Call trace: [ 83.518793][ T5602] btrfs_run_delayed_refs+0x3e4/0x458 [ 83.519715][ T5602] btrfs_commit_transaction+0x1e0/0x3078 [ 83.520631][ T5602] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 83.521547][ T5602] btrfs_ioctl+0x50c/0xa8c [ 83.522316][ T5602] __arm64_sys_ioctl+0x14c/0x1c8 [ 83.523087][ T5602] invoke_syscall+0x98/0x2b0 [ 83.523827][ T5602] el0_svc_common+0x138/0x258 [ 83.524584][ T5602] do_el0_svc+0x58/0x13c [ 83.525285][ T5602] el0_svc+0x78/0x1d0 [ 83.525964][ T5602] el0t_64_sync_handler+0xcc/0xe4 [ 83.526768][ T5602] el0t_64_sync+0x1a0/0x1a4 [ 83.527523][ T5602] irq event stamp: 78866 [ 83.528277][ T5602] hardirqs last enabled at (78865): [] __up_console_sem+0xb4/0xfc [ 83.529899][ T5602] hardirqs last disabled at (78866): [] el1_dbg+0x24/0x80 [ 83.531277][ T5602] softirqs last enabled at (78854): [] handle_softirqs+0xa40/0xbe4 [ 83.532821][ T5602] softirqs last disabled at (78833): [] __irq_exit_rcu+0x240/0x43c [ 83.534342][ T5602] ---[ end trace d8aa63e12cf4decf ]--- [ 83.537221][ T5602] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 83.538750][ T5602] BTRFS info (device loop0): forced readonly [ 83.739460][ T5624] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.48 (5624) [ 83.743832][ T5624] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 83.745331][ T5624] BTRFS info (device loop0): using free space tree [ 83.746766][ T5624] BTRFS info (device loop0): has skinny extents [ 83.761669][ T5624] BTRFS info (device loop0): enabling ssd optimizations [ 83.765023][ T5624] FAULT_INJECTION: forcing a failure. [ 83.765023][ T5624] name failslab, interval 1, probability 0, space 0, times 0 [ 83.767396][ T5624] CPU: 1 PID: 5624 Comm: syz.0.48 Tainted: G W syzkaller #0 [ 83.768802][ T5624] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 83.770465][ T5624] Call trace: [ 83.770978][ T5624] dump_backtrace+0x0/0x458 [ 83.771715][ T5624] show_stack+0x2c/0x3c [ 83.772414][ T5624] __dump_stack+0x30/0x40 [ 83.773184][ T5624] dump_stack_lvl+0xf4/0x15c [ 83.773879][ T5624] dump_stack+0x1c/0x5c [ 83.774498][ T5624] should_fail+0x3bc/0x514 [ 83.775203][ T5624] __should_failslab+0xbc/0x10c [ 83.775999][ T5624] should_failslab+0x10/0x28 [ 83.776744][ T5624] slab_pre_alloc_hook+0x64/0xe8 [ 83.777552][ T5624] kmem_cache_alloc+0x94/0x3d4 [ 83.778305][ T5624] btrfs_alloc_path+0x5c/0x68 [ 83.779080][ T5624] __btrfs_run_delayed_refs+0xe70/0x348c [ 83.780003][ T5624] btrfs_run_delayed_refs+0x124/0x458 [ 83.780873][ T5624] btrfs_commit_transaction+0x1e0/0x3078 [ 83.781740][ T5624] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 83.782633][ T5624] btrfs_ioctl+0x50c/0xa8c [ 83.783344][ T5624] __arm64_sys_ioctl+0x14c/0x1c8 [ 83.784086][ T5624] invoke_syscall+0x98/0x2b0 [ 83.784769][ T5624] el0_svc_common+0x138/0x258 [ 83.785570][ T5624] do_el0_svc+0x58/0x13c [ 83.786280][ T5624] el0_svc+0x78/0x1d0 [ 83.786884][ T5624] el0t_64_sync_handler+0xcc/0xe4 [ 83.787706][ T5624] el0t_64_sync+0x1a0/0x1a4 [ 83.789950][ T5624] BTRFS error (device loop0): failed to run delayed ref for logical 5242880 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 83.792053][ T5624] ------------[ cut here ]------------ [ 83.793012][ T5624] WARNING: CPU: 1 PID: 5624 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 83.794611][ T5624] Modules linked in: [ 83.795240][ T5624] CPU: 1 PID: 5624 Comm: syz.0.48 Tainted: G W syzkaller #0 [ 83.796679][ T5624] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 83.798294][ T5624] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 83.799508][ T5624] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 83.800347][ T5624] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 83.801227][ T5624] sp : ffff800022d977d0 [ 83.801914][ T5624] x29: ffff800022d977e0 x28: ffff0000ccc6d000 x27: dfff800000000000 [ 83.803208][ T5624] x26: ffff0000ccc6d024 x25: ffff0000d7454000 x24: 1fffe0001bdcc597 [ 83.804439][ T5624] x23: 1fffe0001bdcc597 x22: ffff0000dee62cb8 x21: 00000000fffffff4 [ 83.805708][ T5624] x20: 0000000000000051 x19: ffff0000dee62c60 x18: 0000000000000001 [ 83.807075][ T5624] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 83.808463][ T5624] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 83.809757][ T5624] x11: 0000000000000000 x10: 0000000000000000 x9 : 7ebc671b2a49e000 [ 83.811064][ T5624] x8 : 7ebc671b2a49e000 x7 : 0000000000000001 x6 : 0000000000000001 [ 83.812341][ T5624] x5 : ffff800022d970d8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 83.813600][ T5624] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 83.814870][ T5624] Call trace: [ 83.815405][ T5624] btrfs_run_delayed_refs+0x3e4/0x458 [ 83.816310][ T5624] btrfs_commit_transaction+0x1e0/0x3078 [ 83.817211][ T5624] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 83.818077][ T5624] btrfs_ioctl+0x50c/0xa8c [ 83.818870][ T5624] __arm64_sys_ioctl+0x14c/0x1c8 [ 83.819704][ T5624] invoke_syscall+0x98/0x2b0 [ 83.820464][ T5624] el0_svc_common+0x138/0x258 [ 83.821264][ T5624] do_el0_svc+0x58/0x13c [ 83.821937][ T5624] el0_svc+0x78/0x1d0 [ 83.822587][ T5624] el0t_64_sync_handler+0xcc/0xe4 [ 83.823435][ T5624] el0t_64_sync+0x1a0/0x1a4 [ 83.824256][ T5624] irq event stamp: 79116 [ 83.824925][ T5624] hardirqs last enabled at (79115): [] __up_console_sem+0xb4/0xfc [ 83.826481][ T5624] hardirqs last disabled at (79116): [] el1_dbg+0x24/0x80 [ 83.827919][ T5624] softirqs last enabled at (79082): [] handle_softirqs+0xa40/0xbe4 [ 83.829487][ T5624] softirqs last disabled at (79027): [] __irq_exit_rcu+0x240/0x43c [ 83.831058][ T5624] ---[ end trace d8aa63e12cf4ded0 ]--- [ 83.832807][ T5624] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 83.834352][ T5624] BTRFS info (device loop0): forced readonly [ 84.086616][ T5646] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.49 (5646) [ 84.090914][ T5646] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 84.092358][ T5646] BTRFS info (device loop0): using free space tree [ 84.093369][ T5646] BTRFS info (device loop0): has skinny extents [ 84.110338][ T5646] BTRFS info (device loop0): enabling ssd optimizations [ 84.113821][ T5646] FAULT_INJECTION: forcing a failure. [ 84.113821][ T5646] name failslab, interval 1, probability 0, space 0, times 0 [ 84.116245][ T5646] CPU: 0 PID: 5646 Comm: syz.0.49 Tainted: G W syzkaller #0 [ 84.117625][ T5646] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 84.119323][ T5646] Call trace: [ 84.119850][ T5646] dump_backtrace+0x0/0x458 [ 84.120584][ T5646] show_stack+0x2c/0x3c [ 84.121238][ T5646] __dump_stack+0x30/0x40 [ 84.121930][ T5646] dump_stack_lvl+0xf4/0x15c [ 84.122642][ T5646] dump_stack+0x1c/0x5c [ 84.123299][ T5646] should_fail+0x3bc/0x514 [ 84.124094][ T5646] __should_failslab+0xbc/0x10c [ 84.124918][ T5646] should_failslab+0x10/0x28 [ 84.125676][ T5646] slab_pre_alloc_hook+0x64/0xe8 [ 84.126461][ T5646] kmem_cache_alloc+0x94/0x3d4 [ 84.127188][ T5646] btrfs_alloc_path+0x5c/0x68 [ 84.127934][ T5646] __btrfs_free_extent+0x1a8/0x1abc [ 84.128761][ T5646] __btrfs_run_delayed_refs+0xbf0/0x348c [ 84.129717][ T5646] btrfs_run_delayed_refs+0x124/0x458 [ 84.130532][ T5646] btrfs_commit_transaction+0x1e0/0x3078 [ 84.131394][ T5646] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 84.132258][ T5646] btrfs_ioctl+0x50c/0xa8c [ 84.132989][ T5646] __arm64_sys_ioctl+0x14c/0x1c8 [ 84.133845][ T5646] invoke_syscall+0x98/0x2b0 [ 84.134611][ T5646] el0_svc_common+0x138/0x258 [ 84.135401][ T5646] do_el0_svc+0x58/0x13c [ 84.136115][ T5646] el0_svc+0x78/0x1d0 [ 84.136799][ T5646] el0t_64_sync_handler+0xcc/0xe4 [ 84.137591][ T5646] el0t_64_sync+0x1a0/0x1a4 [ 84.140446][ T5646] BTRFS error (device loop0): failed to run delayed ref for logical 5255168 num_bytes 4096 type 176 action 2 ref_mod 1: -12 [ 84.142432][ T5646] ------------[ cut here ]------------ [ 84.143376][ T5646] WARNING: CPU: 0 PID: 5646 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 84.144958][ T5646] Modules linked in: [ 84.145563][ T5646] CPU: 0 PID: 5646 Comm: syz.0.49 Tainted: G W syzkaller #0 [ 84.147052][ T5646] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 84.148681][ T5646] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 84.149969][ T5646] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 84.150875][ T5646] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 84.151868][ T5646] sp : ffff8000230477d0 [ 84.152543][ T5646] x29: ffff8000230477e0 x28: ffff0000d0776000 x27: dfff800000000000 [ 84.153920][ T5646] x26: ffff0000d0776024 x25: ffff0000e86cc000 x24: 1fffe0001bdb7b97 [ 84.155182][ T5646] x23: 1fffe0001bdb7b97 x22: ffff0000dedbdcb8 x21: 00000000fffffff4 [ 84.156421][ T5646] x20: 0000000000000051 x19: ffff0000dedbdc60 x18: 0000000000000001 [ 84.157687][ T5646] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 84.158933][ T5646] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 84.160242][ T5646] x11: 0000000000000000 x10: 0000000000000000 x9 : 978ec322805ae900 [ 84.161495][ T5646] x8 : 978ec322805ae900 x7 : 0000000000000001 x6 : 0000000000000001 [ 84.162747][ T5646] x5 : ffff8000230470d8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 84.164105][ T5646] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 84.165395][ T5646] Call trace: [ 84.165893][ T5646] btrfs_run_delayed_refs+0x3e4/0x458 [ 84.166850][ T5646] btrfs_commit_transaction+0x1e0/0x3078 [ 84.167723][ T5646] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 84.168573][ T5646] btrfs_ioctl+0x50c/0xa8c [ 84.169303][ T5646] __arm64_sys_ioctl+0x14c/0x1c8 [ 84.170048][ T5646] invoke_syscall+0x98/0x2b0 [ 84.170815][ T5646] el0_svc_common+0x138/0x258 [ 84.171542][ T5646] do_el0_svc+0x58/0x13c [ 84.172177][ T5646] el0_svc+0x78/0x1d0 [ 84.172834][ T5646] el0t_64_sync_handler+0xcc/0xe4 [ 84.173614][ T5646] el0t_64_sync+0x1a0/0x1a4 [ 84.174323][ T5646] irq event stamp: 78410 [ 84.175050][ T5646] hardirqs last enabled at (78409): [] __up_console_sem+0xb4/0xfc [ 84.176512][ T5646] hardirqs last disabled at (78410): [] el1_dbg+0x24/0x80 [ 84.177845][ T5646] softirqs last enabled at (78378): [] handle_softirqs+0xa40/0xbe4 [ 84.179333][ T5646] softirqs last disabled at (78363): [] __irq_exit_rcu+0x240/0x43c [ 84.180820][ T5646] ---[ end trace d8aa63e12cf4ded1 ]--- [ 84.184256][ T5646] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 84.185948][ T5646] BTRFS info (device loop0): forced readonly 1970/01/01 00:01:24 executed programs: 37