Warning: Permanently added '10.128.1.33' (ED25519) to the list of known hosts. 1970/01/01 00:01:07 ignoring optional flag "type"="gce" 1970/01/01 00:01:07 parsed 1 programs [ 68.629528][ T4457] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SSFS [ 69.608348][ T2062] ieee802154 phy0 wpan0: encryption failed: -22 [ 69.608984][ T7] cfg80211: failed to load regulatory.db [ 69.609591][ T2062] ieee802154 phy1 wpan1: encryption failed: -22 [ 70.687059][ T443] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 70.689217][ T443] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 70.691274][ T443] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 70.696728][ T148] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 70.699074][ T148] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 70.701530][ T829] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 70.915147][ T4575] chnl_net:caif_netlink_parms(): no params data found [ 70.932682][ T4575] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.933890][ T4575] bridge0: port 1(bridge_slave_0) entered disabled state [ 70.935457][ T4575] device bridge_slave_0 entered promiscuous mode [ 70.937551][ T4575] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.938831][ T4575] bridge0: port 2(bridge_slave_1) entered disabled state [ 70.940391][ T4575] device bridge_slave_1 entered promiscuous mode [ 70.948428][ T4575] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 70.951028][ T4575] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 70.960208][ T4575] team0: Port device team_slave_0 added [ 70.962081][ T4575] team0: Port device team_slave_1 added [ 70.968620][ T4575] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 70.969735][ T4575] 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. [ 70.973892][ T4575] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 70.976173][ T4575] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 70.977766][ T4575] 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. [ 70.982451][ T4575] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 71.028230][ T4575] device hsr_slave_0 entered promiscuous mode [ 71.087286][ T4575] device hsr_slave_1 entered promiscuous mode [ 71.725811][ T4575] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 71.768581][ T4575] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 71.818280][ T4575] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 71.868686][ T4575] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 71.932730][ T4575] 8021q: adding VLAN 0 to HW filter on device bond0 [ 71.938703][ T443] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 71.940435][ T443] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 71.956265][ T4575] 8021q: adding VLAN 0 to HW filter on device team0 [ 71.960448][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 71.962099][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 71.963843][ T148] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.964969][ T148] bridge0: port 1(bridge_slave_0) entered forwarding state [ 71.968223][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 71.974795][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 71.976534][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 71.978488][ T148] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.979674][ T148] bridge0: port 2(bridge_slave_1) entered forwarding state [ 71.981191][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 71.984395][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 71.988714][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 71.990944][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 71.992550][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 72.001103][ T4575] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 72.002762][ T4575] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 72.006014][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 72.009747][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 72.011564][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 72.013180][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 72.014832][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 72.016305][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 72.022208][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 72.061082][ T443] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 72.062377][ T443] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 72.066157][ T4575] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 72.072291][ T443] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 72.074090][ T443] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 72.081547][ T4575] device veth0_vlan entered promiscuous mode [ 72.084623][ T4575] device veth1_vlan entered promiscuous mode [ 72.087792][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 72.089440][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 72.091039][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 72.092499][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 72.093969][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 72.102809][ T443] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 72.104359][ T443] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 72.106018][ T443] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 72.108854][ T4575] device veth0_macvtap entered promiscuous mode [ 72.111505][ T4575] device veth1_macvtap entered promiscuous mode [ 72.125734][ T4575] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 72.126984][ T443] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 72.130000][ T443] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 72.131474][ T443] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 72.133137][ T443] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 72.136516][ T4575] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 72.138205][ T829] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 72.139833][ T829] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 72.142785][ T4575] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 72.144131][ T4575] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 72.145549][ T4575] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 72.146988][ T4575] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 1970/01/01 00:01:12 executed programs: 0 [ 72.254374][ T4695] chnl_net:caif_netlink_parms(): no params data found [ 72.276278][ T4695] bridge0: port 1(bridge_slave_0) entered blocking state [ 72.278886][ T4695] bridge0: port 1(bridge_slave_0) entered disabled state [ 72.280295][ T4695] device bridge_slave_0 entered promiscuous mode [ 72.282899][ T4695] bridge0: port 2(bridge_slave_1) entered blocking state [ 72.284080][ T4695] bridge0: port 2(bridge_slave_1) entered disabled state [ 72.285665][ T4695] device bridge_slave_1 entered promiscuous mode [ 72.293603][ T4695] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 72.297068][ T4695] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 72.305813][ T4695] team0: Port device team_slave_0 added [ 72.307791][ T4695] team0: Port device team_slave_1 added [ 72.314429][ T4695] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 72.315594][ T4695] 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. [ 72.320612][ T4695] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 72.323001][ T4695] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 72.324143][ T4695] 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. [ 72.329207][ T4695] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 72.388712][ T4695] device hsr_slave_0 entered promiscuous mode [ 72.437439][ T4695] device hsr_slave_1 entered promiscuous mode [ 72.467200][ T4695] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 72.468409][ T4695] Cannot create hsr debugfs directory [ 72.501736][ T4695] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 74.257380][ T4168] Bluetooth: hci0: command 0x0409 tx timeout [ 75.550696][ T4695] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 76.327443][ T4076] Bluetooth: hci0: command 0x041b tx timeout [ 78.251798][ T4695] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 78.303741][ T4695] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 78.407145][ T1540] Bluetooth: hci0: command 0x040f tx timeout [ 78.470188][ T4695] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 78.543669][ T4695] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 78.579340][ T4695] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 78.628217][ T4695] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 78.691043][ T4695] 8021q: adding VLAN 0 to HW filter on device bond0 [ 78.695508][ T443] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 78.697041][ T443] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 78.700010][ T4695] 8021q: adding VLAN 0 to HW filter on device team0 [ 78.702541][ T443] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 78.704199][ T443] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 78.705739][ T443] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.706932][ T443] bridge0: port 1(bridge_slave_0) entered forwarding state [ 78.708494][ T443] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 78.711237][ T443] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 78.712908][ T443] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 78.714350][ T443] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.715496][ T443] bridge0: port 2(bridge_slave_1) entered forwarding state [ 78.719440][ T443] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 78.722188][ T443] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 78.724931][ T443] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 78.726712][ T443] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 78.728774][ T443] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 78.731346][ T443] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 78.732860][ T443] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 78.736426][ T443] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 78.739002][ T443] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 78.741813][ T443] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 78.743397][ T443] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 78.745781][ T4695] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 78.783251][ T443] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 78.784654][ T443] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 78.788368][ T4695] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 78.794708][ T443] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 78.796492][ T443] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 78.803619][ T443] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 78.805172][ T443] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 78.806741][ T443] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 78.808590][ T443] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 78.813484][ T4695] device veth0_vlan entered promiscuous mode [ 78.817811][ T4695] device veth1_vlan entered promiscuous mode [ 78.824914][ T443] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 78.826517][ T443] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 78.828372][ T443] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 78.829886][ T443] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 78.832456][ T4695] device veth0_macvtap entered promiscuous mode [ 78.834921][ T4695] device veth1_macvtap entered promiscuous mode [ 78.840439][ T4695] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 78.842131][ T4695] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 78.844301][ T4695] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 78.845512][ T443] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 78.847252][ T443] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 78.848768][ T443] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 78.850248][ T443] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 78.852749][ T4695] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 78.854339][ T4695] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 78.856519][ T4695] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 78.860272][ T443] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 78.861891][ T443] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 78.867220][ T4695] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.868706][ T4695] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.870176][ T4695] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.871681][ T4695] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.891003][ T443] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 78.893211][ T443] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 78.894681][ T829] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 78.904596][ T829] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 78.905927][ T829] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 78.907767][ T829] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 1970/01/01 00:01:18 executed programs: 2 [ 79.019639][ T4946] loop0: detected capacity change from 0 to 32768 [ 79.067332][ T4946] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.15 (4946) [ 79.074630][ T4946] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 79.076081][ T4946] BTRFS info (device loop0): using free space tree [ 79.077804][ T4946] BTRFS info (device loop0): has skinny extents [ 79.086951][ T4946] BTRFS info (device loop0): enabling ssd optimizations [ 79.094692][ T4946] FAULT_INJECTION: forcing a failure. [ 79.094692][ T4946] name failslab, interval 1, probability 0, space 0, times 1 [ 79.096875][ T4946] CPU: 1 PID: 4946 Comm: syz.0.15 Not tainted syzkaller #0 [ 79.098111][ T4946] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 79.099795][ T4946] Call trace: [ 79.100299][ T4946] dump_backtrace+0x0/0x458 [ 79.101038][ T4946] show_stack+0x2c/0x3c [ 79.101670][ T4946] __dump_stack+0x30/0x40 [ 79.102413][ T4946] dump_stack_lvl+0xf4/0x15c [ 79.103135][ T4946] dump_stack+0x1c/0x5c [ 79.103807][ T4946] should_fail+0x3bc/0x514 [ 79.104574][ T4946] __should_failslab+0xbc/0x10c [ 79.105380][ T4946] should_failslab+0x10/0x28 [ 79.106138][ T4946] slab_pre_alloc_hook+0x64/0xe8 [ 79.106974][ T4946] kmem_cache_alloc+0x94/0x3d4 [ 79.107865][ T4946] btrfs_alloc_path+0x5c/0x68 [ 79.108611][ T4946] __btrfs_run_delayed_refs+0xe70/0x348c [ 79.109483][ T4946] btrfs_run_delayed_refs+0x124/0x458 [ 79.110316][ T4946] btrfs_commit_transaction+0x1e0/0x3078 [ 79.111291][ T4946] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 79.112219][ T4946] btrfs_ioctl+0x50c/0xa8c [ 79.112963][ T4946] __arm64_sys_ioctl+0x14c/0x1c8 [ 79.113776][ T4946] invoke_syscall+0x98/0x2b0 [ 79.114554][ T4946] el0_svc_common+0x138/0x258 [ 79.115339][ T4946] do_el0_svc+0x58/0x13c [ 79.116042][ T4946] el0_svc+0x78/0x1d0 [ 79.116687][ T4946] el0t_64_sync_handler+0xcc/0xe4 [ 79.117592][ T4946] el0t_64_sync+0x1a0/0x1a4 [ 79.121282][ T4946] BTRFS error (device loop0): failed to run delayed ref for logical 5242880 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 79.123391][ T4946] ------------[ cut here ]------------ [ 79.124416][ T4946] WARNING: CPU: 1 PID: 4946 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 79.125988][ T4946] Modules linked in: [ 79.126590][ T4946] CPU: 1 PID: 4946 Comm: syz.0.15 Not tainted syzkaller #0 [ 79.127734][ T4946] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 79.129432][ T4946] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 79.130726][ T4946] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 79.131807][ T4946] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 79.132727][ T4946] sp : ffff80001fd977d0 [ 79.133387][ T4946] x29: ffff80001fd977e0 x28: ffff0000cea4a000 x27: dfff800000000000 [ 79.134741][ T4946] x26: ffff0000cea4a024 x25: ffff0000d4b10000 x24: 1fffe0001bcb5a21 [ 79.136079][ T4946] x23: 1fffe0001bcb5a21 x22: ffff0000de5ad108 x21: 00000000fffffff4 [ 79.137499][ T4946] x20: 0000000000000051 x19: ffff0000de5ad0b0 x18: 0000000000000001 [ 79.138930][ T4946] x17: 0000000000000000 x16: ffff80001125f020 x15: 00000000ffffffff [ 79.140362][ T4946] x14: 0000000000000001 x13: 1fffe000341f47ab x12: 0000000000ff0100 [ 79.141742][ T4946] x11: 0000000000000000 x10: 0000000000000000 x9 : 9f6410f3df8ddb00 [ 79.143018][ T4946] x8 : 9f6410f3df8ddb00 x7 : 0000000000000001 x6 : 0000000000000001 [ 79.144381][ T4946] x5 : ffff80001fd970d8 x4 : ffff80001437f3e0 x3 : ffff800008509220 [ 79.145762][ T4946] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 79.147135][ T4946] Call trace: [ 79.147713][ T4946] btrfs_run_delayed_refs+0x3e4/0x458 [ 79.148698][ T4946] btrfs_commit_transaction+0x1e0/0x3078 [ 79.149623][ T4946] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 79.150541][ T4946] btrfs_ioctl+0x50c/0xa8c [ 79.151250][ T4946] __arm64_sys_ioctl+0x14c/0x1c8 [ 79.152038][ T4946] invoke_syscall+0x98/0x2b0 [ 79.152770][ T4946] el0_svc_common+0x138/0x258 [ 79.153557][ T4946] do_el0_svc+0x58/0x13c [ 79.154278][ T4946] el0_svc+0x78/0x1d0 [ 79.154943][ T4946] el0t_64_sync_handler+0xcc/0xe4 [ 79.155763][ T4946] el0t_64_sync+0x1a0/0x1a4 [ 79.156551][ T4946] irq event stamp: 81250 [ 79.157224][ T4946] hardirqs last enabled at (81249): [] __up_console_sem+0xb4/0xfc [ 79.158956][ T4946] hardirqs last disabled at (81250): [] el1_dbg+0x24/0x80 [ 79.160457][ T4946] softirqs last enabled at (81210): [] handle_softirqs+0xa40/0xbe4 [ 79.162104][ T4946] softirqs last disabled at (81131): [] __irq_exit_rcu+0x240/0x43c [ 79.163754][ T4946] ---[ end trace 28ba6f7054f9b119 ]--- [ 79.168948][ T4946] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 79.170520][ T4946] BTRFS info (device loop0): forced readonly [ 79.299568][ T136] device hsr_slave_0 left promiscuous mode [ 79.345321][ T4983] loop0: detected capacity change from 0 to 32768 [ 79.347400][ T136] device hsr_slave_1 left promiscuous mode [ 79.394927][ T4983] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.16 (4983) [ 79.400940][ T4983] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 79.402333][ T4983] BTRFS info (device loop0): using free space tree [ 79.403395][ T4983] BTRFS info (device loop0): has skinny extents [ 79.418795][ T4983] BTRFS info (device loop0): enabling ssd optimizations [ 79.422920][ T4983] FAULT_INJECTION: forcing a failure. [ 79.422920][ T4983] name failslab, interval 1, probability 0, space 0, times 0 [ 79.425093][ T4983] CPU: 0 PID: 4983 Comm: syz.0.16 Tainted: G W syzkaller #0 [ 79.426403][ T4983] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 79.428015][ T4983] Call trace: [ 79.428590][ T4983] dump_backtrace+0x0/0x458 [ 79.429377][ T4983] show_stack+0x2c/0x3c [ 79.430086][ T4983] __dump_stack+0x30/0x40 [ 79.430813][ T4983] dump_stack_lvl+0xf4/0x15c [ 79.431588][ T4983] dump_stack+0x1c/0x5c [ 79.432280][ T4983] should_fail+0x3bc/0x514 [ 79.432957][ T4983] __should_failslab+0xbc/0x10c [ 79.433747][ T4983] should_failslab+0x10/0x28 [ 79.434454][ T4983] slab_pre_alloc_hook+0x64/0xe8 [ 79.435287][ T4983] kmem_cache_alloc+0x94/0x3d4 [ 79.436095][ T4983] btrfs_alloc_path+0x5c/0x68 [ 79.436886][ T4983] __btrfs_run_delayed_refs+0xe70/0x348c [ 79.437845][ T4983] btrfs_run_delayed_refs+0x124/0x458 [ 79.438685][ T4983] btrfs_commit_transaction+0x1e0/0x3078 [ 79.439605][ T4983] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 79.440481][ T4983] btrfs_ioctl+0x50c/0xa8c [ 79.441182][ T4983] __arm64_sys_ioctl+0x14c/0x1c8 [ 79.441974][ T4983] invoke_syscall+0x98/0x2b0 [ 79.442717][ T4983] el0_svc_common+0x138/0x258 [ 79.443443][ T4983] do_el0_svc+0x58/0x13c [ 79.444130][ T4983] el0_svc+0x78/0x1d0 [ 79.444798][ T4983] el0t_64_sync_handler+0xcc/0xe4 [ 79.445661][ T4983] el0t_64_sync+0x1a0/0x1a4 [ 79.448171][ T136] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 79.449278][ T136] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 79.452321][ T136] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 79.453498][ T136] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 79.454936][ T136] device bridge_slave_1 left promiscuous mode [ 79.456062][ T136] bridge0: port 2(bridge_slave_1) entered disabled state [ 79.457952][ T4983] BTRFS error (device loop0): failed to run delayed ref for logical 5242880 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 79.459966][ T4983] ------------[ cut here ]------------ [ 79.460972][ T4983] WARNING: CPU: 0 PID: 4983 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 79.462608][ T4983] Modules linked in: [ 79.463263][ T4983] CPU: 0 PID: 4983 Comm: syz.0.16 Tainted: G W syzkaller #0 [ 79.464755][ T4983] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 79.466390][ T4983] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 79.467734][ T4983] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 79.468720][ T4983] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 79.469706][ T4983] sp : ffff80001ffb77d0 [ 79.470474][ T4983] x29: ffff80001ffb77e0 x28: ffff0000d49dd000 x27: dfff800000000000 [ 79.471901][ T4983] x26: ffff0000d49dd024 x25: ffff0000db4d8000 x24: 1fffe0001bcf9c21 [ 79.473249][ T4983] x23: 1fffe0001bcf9c21 x22: ffff0000de7ce108 x21: 00000000fffffff4 [ 79.474636][ T4983] x20: 0000000000000051 x19: ffff0000de7ce0b0 x18: 0000000000000001 [ 79.475975][ T4983] x17: 0000000000000000 x16: ffff80001125f020 x15: 00000000ffffffff [ 79.477349][ T4983] x14: 0000000000000001 x13: 1fffe000341f05ab x12: 0000000000ff0100 [ 79.478758][ T4983] x11: 0000000000000000 x10: 0000000000000000 x9 : 9e4f518f6a796f00 [ 79.479997][ T4983] x8 : 9e4f518f6a796f00 x7 : 0000000000000001 x6 : 0000000000000001 [ 79.481294][ T4983] x5 : ffff80001ffb70d8 x4 : ffff80001437f3e0 x3 : ffff800008509220 [ 79.482734][ T4983] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 79.484075][ T4983] Call trace: [ 79.484668][ T4983] btrfs_run_delayed_refs+0x3e4/0x458 [ 79.485553][ T4983] btrfs_commit_transaction+0x1e0/0x3078 [ 79.486584][ T4983] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 79.487495][ T4983] btrfs_ioctl+0x50c/0xa8c [ 79.488228][ T4983] __arm64_sys_ioctl+0x14c/0x1c8 [ 79.489051][ T4983] invoke_syscall+0x98/0x2b0 [ 79.489847][ T4983] el0_svc_common+0x138/0x258 [ 79.490606][ T4983] do_el0_svc+0x58/0x13c [ 79.491341][ T4983] el0_svc+0x78/0x1d0 [ 79.492032][ T4983] el0t_64_sync_handler+0xcc/0xe4 [ 79.492881][ T4983] el0t_64_sync+0x1a0/0x1a4 [ 79.493606][ T4983] irq event stamp: 79018 [ 79.494323][ T4983] hardirqs last enabled at (79017): [] __up_console_sem+0xb4/0xfc [ 79.496034][ T4983] hardirqs last disabled at (79018): [] el1_dbg+0x24/0x80 [ 79.497504][ T4983] softirqs last enabled at (78984): [] handle_softirqs+0xa40/0xbe4 [ 79.499049][ T4983] softirqs last disabled at (78947): [] __irq_exit_rcu+0x240/0x43c [ 79.500648][ T4983] ---[ end trace 28ba6f7054f9b11a ]--- [ 79.504333][ T4983] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 79.505881][ T4983] BTRFS info (device loop0): forced readonly [ 79.548021][ T136] device bridge_slave_0 left promiscuous mode [ 79.549153][ T136] bridge0: port 1(bridge_slave_0) entered disabled state [ 79.667186][ T136] device veth1_macvtap left promiscuous mode [ 79.668295][ T136] device veth0_macvtap left promiscuous mode [ 79.669287][ T136] device veth1_vlan left promiscuous mode [ 79.670239][ T136] device veth0_vlan left promiscuous mode [ 79.688670][ T5006] loop0: detected capacity change from 0 to 32768 [ 79.694253][ T5006] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.17 (5006) [ 79.705644][ T5006] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 79.707294][ T5006] BTRFS info (device loop0): using free space tree [ 79.708336][ T5006] BTRFS info (device loop0): has skinny extents [ 79.751216][ T5006] BTRFS info (device loop0): enabling ssd optimizations [ 79.755090][ T5006] FAULT_INJECTION: forcing a failure. [ 79.755090][ T5006] name failslab, interval 1, probability 0, space 0, times 0 [ 79.758151][ T5006] CPU: 1 PID: 5006 Comm: syz.0.17 Tainted: G W syzkaller #0 [ 79.759468][ T5006] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 79.761079][ T5006] Call trace: [ 79.761596][ T5006] dump_backtrace+0x0/0x458 [ 79.762328][ T5006] show_stack+0x2c/0x3c [ 79.763029][ T5006] __dump_stack+0x30/0x40 [ 79.763735][ T5006] dump_stack_lvl+0xf4/0x15c [ 79.764502][ T5006] dump_stack+0x1c/0x5c [ 79.765234][ T5006] should_fail+0x3bc/0x514 [ 79.766030][ T5006] __should_failslab+0xbc/0x10c [ 79.766793][ T5006] should_failslab+0x10/0x28 [ 79.767582][ T5006] slab_pre_alloc_hook+0x64/0xe8 [ 79.768427][ T5006] kmem_cache_alloc+0x94/0x3d4 [ 79.769252][ T5006] btrfs_alloc_path+0x5c/0x68 [ 79.770071][ T5006] __btrfs_run_delayed_refs+0xe70/0x348c [ 79.770991][ T5006] btrfs_run_delayed_refs+0x124/0x458 [ 79.771870][ T5006] btrfs_commit_transaction+0x1e0/0x3078 [ 79.772803][ T5006] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 79.773745][ T5006] btrfs_ioctl+0x50c/0xa8c [ 79.774500][ T5006] __arm64_sys_ioctl+0x14c/0x1c8 [ 79.775291][ T5006] invoke_syscall+0x98/0x2b0 [ 79.776028][ T5006] el0_svc_common+0x138/0x258 [ 79.776790][ T5006] do_el0_svc+0x58/0x13c [ 79.777496][ T5006] el0_svc+0x78/0x1d0 [ 79.778218][ T5006] el0t_64_sync_handler+0xcc/0xe4 [ 79.779079][ T5006] el0t_64_sync+0x1a0/0x1a4 [ 79.782921][ T5006] BTRFS error (device loop0): failed to run delayed ref for logical 5242880 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 79.785367][ T5006] ------------[ cut here ]------------ [ 79.786281][ T5006] WARNING: CPU: 1 PID: 5006 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 79.787865][ T5006] Modules linked in: [ 79.788459][ T5006] CPU: 1 PID: 5006 Comm: syz.0.17 Tainted: G W syzkaller #0 [ 79.789838][ T5006] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 79.791402][ T5006] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 79.792566][ T5006] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 79.793567][ T5006] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 79.794524][ T5006] sp : ffff80001fd977d0 [ 79.795222][ T5006] x29: ffff80001fd977e0 x28: ffff0000c61ce000 x27: dfff800000000000 [ 79.796603][ T5006] x26: ffff0000c61ce024 x25: ffff0000e8294000 x24: 1fffe0001bcb5a4d [ 79.797952][ T5006] x23: 1fffe0001bcb5a4d x22: ffff0000de5ad268 x21: 00000000fffffff4 [ 79.799255][ T5006] x20: 0000000000000051 x19: ffff0000de5ad210 x18: 0000000000000001 [ 79.800508][ T5006] x17: 0000000000000000 x16: ffff80001125f020 x15: 00000000ffffffff [ 79.801791][ T5006] x14: 0000000000000001 x13: 1fffe000341f47ab x12: 0000000000ff0100 [ 79.803021][ T5006] x11: 0000000000000000 x10: 0000000000000000 x9 : a5945056fd7efc00 [ 79.804378][ T5006] x8 : a5945056fd7efc00 x7 : 0000000000000001 x6 : 0000000000000001 [ 79.805735][ T5006] x5 : ffff80001fd970d8 x4 : ffff80001437f3e0 x3 : ffff800008509220 [ 79.807215][ T5006] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 79.808585][ T5006] Call trace: [ 79.809110][ T5006] btrfs_run_delayed_refs+0x3e4/0x458 [ 79.809961][ T5006] btrfs_commit_transaction+0x1e0/0x3078 [ 79.810919][ T5006] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 79.811875][ T5006] btrfs_ioctl+0x50c/0xa8c [ 79.812575][ T5006] __arm64_sys_ioctl+0x14c/0x1c8 [ 79.813335][ T5006] invoke_syscall+0x98/0x2b0 [ 79.814104][ T5006] el0_svc_common+0x138/0x258 [ 79.814865][ T5006] do_el0_svc+0x58/0x13c [ 79.815558][ T5006] el0_svc+0x78/0x1d0 [ 79.816219][ T5006] el0t_64_sync_handler+0xcc/0xe4 [ 79.817088][ T5006] el0t_64_sync+0x1a0/0x1a4 [ 79.817850][ T5006] irq event stamp: 79560 [ 79.818537][ T5006] hardirqs last enabled at (79559): [] __up_console_sem+0xb4/0xfc [ 79.820068][ T5006] hardirqs last disabled at (79560): [] el1_dbg+0x24/0x80 [ 79.821563][ T5006] softirqs last enabled at (79522): [] handle_softirqs+0xa40/0xbe4 [ 79.823092][ T5006] softirqs last disabled at (79467): [] __irq_exit_rcu+0x240/0x43c [ 79.824728][ T5006] ---[ end trace 28ba6f7054f9b11b ]--- [ 79.826760][ T5006] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 79.828545][ T5006] BTRFS info (device loop0): forced readonly [ 79.860529][ T136] team0 (unregistering): Port device team_slave_1 removed [ 79.864573][ T136] team0 (unregistering): Port device team_slave_0 removed [ 79.868617][ T136] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 79.909921][ T136] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 80.022739][ T5027] loop0: detected capacity change from 0 to 32768 [ 80.031699][ T136] bond0 (unregistering): Released all slaves [ 80.055655][ T5027] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.18 (5027) [ 80.061318][ T5027] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 80.062796][ T5027] BTRFS info (device loop0): using free space tree [ 80.063928][ T5027] BTRFS info (device loop0): has skinny extents [ 80.073019][ T5027] BTRFS info (device loop0): enabling ssd optimizations [ 80.076155][ T5027] FAULT_INJECTION: forcing a failure. [ 80.076155][ T5027] name failslab, interval 1, probability 0, space 0, times 0 [ 80.078683][ T5027] CPU: 0 PID: 5027 Comm: syz.0.18 Tainted: G W syzkaller #0 [ 80.080138][ T5027] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 80.081837][ T5027] Call trace: [ 80.082385][ T5027] dump_backtrace+0x0/0x458 [ 80.083256][ T5027] show_stack+0x2c/0x3c [ 80.083924][ T5027] __dump_stack+0x30/0x40 [ 80.084647][ T5027] dump_stack_lvl+0xf4/0x15c [ 80.085409][ T5027] dump_stack+0x1c/0x5c [ 80.086079][ T5027] should_fail+0x3bc/0x514 [ 80.086777][ T5027] __should_failslab+0xbc/0x10c [ 80.087546][ T5027] should_failslab+0x10/0x28 [ 80.088254][ T5027] slab_pre_alloc_hook+0x64/0xe8 [ 80.089004][ T5027] kmem_cache_alloc+0x94/0x3d4 [ 80.089744][ T5027] btrfs_alloc_path+0x5c/0x68 [ 80.090424][ T5027] __btrfs_run_delayed_refs+0xe70/0x348c [ 80.091454][ T5027] btrfs_run_delayed_refs+0x124/0x458 [ 80.092355][ T5027] btrfs_commit_transaction+0x1e0/0x3078 [ 80.093345][ T5027] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 80.094327][ T5027] btrfs_ioctl+0x50c/0xa8c [ 80.095083][ T5027] __arm64_sys_ioctl+0x14c/0x1c8 [ 80.096017][ T5027] invoke_syscall+0x98/0x2b0 [ 80.096734][ T5027] el0_svc_common+0x138/0x258 [ 80.097530][ T5027] do_el0_svc+0x58/0x13c [ 80.098253][ T5027] el0_svc+0x78/0x1d0 [ 80.098909][ T5027] el0t_64_sync_handler+0xcc/0xe4 [ 80.099763][ T5027] el0t_64_sync+0x1a0/0x1a4 [ 80.101522][ T5027] BTRFS error (device loop0): failed to run delayed ref for logical 5242880 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 80.103714][ T5027] ------------[ cut here ]------------ [ 80.104792][ T5027] WARNING: CPU: 0 PID: 5027 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 80.106381][ T5027] Modules linked in: [ 80.107011][ T5027] CPU: 0 PID: 5027 Comm: syz.0.18 Tainted: G W syzkaller #0 [ 80.108450][ T5027] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 80.110364][ T5027] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 80.111673][ T5027] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 80.112646][ T5027] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 80.113636][ T5027] sp : ffff80001f4f77d0 [ 80.114331][ T5027] x29: ffff80001f4f77e0 x28: ffff0000cbbe7000 x27: dfff800000000000 [ 80.115701][ T5027] x26: ffff0000cbbe7024 x25: ffff0000db180000 x24: 1fffe0001bcf9c4d [ 80.117069][ T5027] x23: 1fffe0001bcf9c4d x22: ffff0000de7ce268 x21: 00000000fffffff4 [ 80.118534][ T5027] x20: 0000000000000051 x19: ffff0000de7ce210 x18: 0000000000000001 [ 80.119897][ T5027] x17: 0000000000000000 x16: ffff80001125f020 x15: 00000000ffffffff [ 80.121259][ T5027] x14: 0000000000000001 x13: 1fffe000341f05ab x12: 0000000000ff0100 [ 80.122678][ T5027] x11: 0000000000000000 x10: 0000000000000000 x9 : fbfc7aab70bbc300 [ 80.124048][ T5027] x8 : fbfc7aab70bbc300 x7 : 0000000000000001 x6 : 0000000000000001 [ 80.125466][ T5027] x5 : ffff80001f4f70d8 x4 : ffff80001437f3e0 x3 : ffff800008509220 [ 80.126834][ T5027] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 80.128196][ T5027] Call trace: [ 80.128758][ T5027] btrfs_run_delayed_refs+0x3e4/0x458 [ 80.129713][ T5027] btrfs_commit_transaction+0x1e0/0x3078 [ 80.130679][ T5027] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 80.131582][ T5027] btrfs_ioctl+0x50c/0xa8c [ 80.132265][ T5027] __arm64_sys_ioctl+0x14c/0x1c8 [ 80.133084][ T5027] invoke_syscall+0x98/0x2b0 [ 80.133831][ T5027] el0_svc_common+0x138/0x258 [ 80.134593][ T5027] do_el0_svc+0x58/0x13c [ 80.135295][ T5027] el0_svc+0x78/0x1d0 [ 80.135982][ T5027] el0t_64_sync_handler+0xcc/0xe4 [ 80.136850][ T5027] el0t_64_sync+0x1a0/0x1a4 [ 80.137630][ T5027] irq event stamp: 78928 [ 80.138379][ T5027] hardirqs last enabled at (78927): [] __up_console_sem+0xb4/0xfc [ 80.140022][ T5027] hardirqs last disabled at (78928): [] el1_dbg+0x24/0x80 [ 80.141497][ T5027] softirqs last enabled at (78894): [] handle_softirqs+0xa40/0xbe4 [ 80.142982][ T5027] softirqs last disabled at (78811): [] __irq_exit_rcu+0x240/0x43c [ 80.144520][ T5027] ---[ end trace 28ba6f7054f9b11c ]--- [ 80.149730][ T5027] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 80.151532][ T5027] BTRFS info (device loop0): forced readonly [ 80.361981][ T5049] loop0: detected capacity change from 0 to 32768 [ 80.418262][ T5049] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.19 (5049) [ 80.421945][ T5049] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 80.423512][ T5049] BTRFS info (device loop0): using free space tree [ 80.424616][ T5049] BTRFS info (device loop0): has skinny extents [ 80.434101][ T5049] BTRFS info (device loop0): enabling ssd optimizations [ 80.438113][ T5049] FAULT_INJECTION: forcing a failure. [ 80.438113][ T5049] name failslab, interval 1, probability 0, space 0, times 0 [ 80.440064][ T5049] CPU: 0 PID: 5049 Comm: syz.0.19 Tainted: G W syzkaller #0 [ 80.441422][ T5049] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 80.443074][ T5049] Call trace: [ 80.443631][ T5049] dump_backtrace+0x0/0x458 [ 80.444413][ T5049] show_stack+0x2c/0x3c [ 80.445121][ T5049] __dump_stack+0x30/0x40 [ 80.445845][ T5049] dump_stack_lvl+0xf4/0x15c [ 80.446666][ T5049] dump_stack+0x1c/0x5c [ 80.447346][ T5049] should_fail+0x3bc/0x514 [ 80.448116][ T5049] __should_failslab+0xbc/0x10c [ 80.448928][ T5049] should_failslab+0x10/0x28 [ 80.449687][ T5049] slab_pre_alloc_hook+0x64/0xe8 [ 80.450529][ T5049] kmem_cache_alloc+0x94/0x3d4 [ 80.451291][ T5049] start_transaction+0x4d0/0x13ec [ 80.452111][ T5049] btrfs_start_transaction+0x34/0x44 [ 80.453058][ T5049] btrfs_ioctl_set_fslabel+0x2bc/0x3d0 [ 80.454061][ T5049] btrfs_ioctl+0x50c/0xa8c [ 80.454778][ T5049] __arm64_sys_ioctl+0x14c/0x1c8 [ 80.455708][ T5049] invoke_syscall+0x98/0x2b0 [ 80.456511][ T5049] el0_svc_common+0x138/0x258 [ 80.457314][ T5049] do_el0_svc+0x58/0x13c [ 80.458042][ T5049] el0_svc+0x78/0x1d0 [ 80.458693][ T5049] el0t_64_sync_handler+0xcc/0xe4 [ 80.459533][ T5049] el0t_64_sync+0x1a0/0x1a4 [ 80.487634][ T4968] Bluetooth: hci0: command 0x0419 tx timeout [ 80.505374][ T4947] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 10 /dev/loop0 scanned by udevd (4947) [ 80.614728][ T5070] loop0: detected capacity change from 0 to 32768 [ 80.698787][ T5070] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 80.700336][ T5070] BTRFS info (device loop0): using free space tree [ 80.701663][ T5070] BTRFS info (device loop0): has skinny extents [ 80.715779][ T5070] BTRFS info (device loop0): enabling ssd optimizations [ 80.722236][ T5070] FAULT_INJECTION: forcing a failure. [ 80.722236][ T5070] name failslab, interval 1, probability 0, space 0, times 0 [ 80.724432][ T5070] CPU: 1 PID: 5070 Comm: syz.0.20 Tainted: G W syzkaller #0 [ 80.725855][ T5070] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 80.727566][ T5070] Call trace: [ 80.728168][ T5070] dump_backtrace+0x0/0x458 [ 80.728945][ T5070] show_stack+0x2c/0x3c [ 80.729693][ T5070] __dump_stack+0x30/0x40 [ 80.730498][ T5070] dump_stack_lvl+0xf4/0x15c [ 80.731234][ T5070] dump_stack+0x1c/0x5c [ 80.731929][ T5070] should_fail+0x3bc/0x514 [ 80.732616][ T5070] __should_failslab+0xbc/0x10c [ 80.733482][ T5070] should_failslab+0x10/0x28 [ 80.734288][ T5070] slab_pre_alloc_hook+0x64/0xe8 [ 80.735200][ T5070] kmem_cache_alloc+0x94/0x3d4 [ 80.735986][ T5070] btrfs_alloc_path+0x5c/0x68 [ 80.736742][ T5070] __btrfs_run_delayed_refs+0xe70/0x348c [ 80.737724][ T5070] btrfs_run_delayed_refs+0x124/0x458 [ 80.738645][ T5070] btrfs_commit_transaction+0x1e0/0x3078 [ 80.739666][ T5070] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 80.740568][ T5070] btrfs_ioctl+0x50c/0xa8c [ 80.741320][ T5070] __arm64_sys_ioctl+0x14c/0x1c8 [ 80.742183][ T5070] invoke_syscall+0x98/0x2b0 [ 80.742960][ T5070] el0_svc_common+0x138/0x258 [ 80.743737][ T5070] do_el0_svc+0x58/0x13c [ 80.744423][ T5070] el0_svc+0x78/0x1d0 [ 80.745081][ T5070] el0t_64_sync_handler+0xcc/0xe4 [ 80.745947][ T5070] el0t_64_sync+0x1a0/0x1a4 [ 80.747252][ T5070] BTRFS error (device loop0): failed to run delayed ref for logical 5242880 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 80.749292][ T5070] ------------[ cut here ]------------ [ 80.750267][ T5070] WARNING: CPU: 1 PID: 5070 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 80.751915][ T5070] Modules linked in: [ 80.752547][ T5070] CPU: 1 PID: 5070 Comm: syz.0.20 Tainted: G W syzkaller #0 [ 80.753965][ T5070] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 80.755700][ T5070] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 80.756987][ T5070] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 80.757922][ T5070] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 80.758890][ T5070] sp : ffff8000202077d0 [ 80.759576][ T5070] x29: ffff8000202077e0 x28: ffff0000d13d1000 x27: dfff800000000000 [ 80.760981][ T5070] x26: ffff0000d13d1024 x25: ffff0000d59fc000 x24: 1fffe0001bcb5a79 [ 80.762355][ T5070] x23: 1fffe0001bcb5a79 x22: ffff0000de5ad3c8 x21: 00000000fffffff4 [ 80.763810][ T5070] x20: 0000000000000051 x19: ffff0000de5ad370 x18: 0000000000000001 [ 80.765135][ T5070] x17: 0000000000000000 x16: ffff80001125f020 x15: 00000000ffffffff [ 80.766401][ T5070] x14: 0000000000000001 x13: 1fffe000341f47ab x12: 0000000000ff0100 [ 80.767712][ T5070] x11: 0000000000000000 x10: 0000000000000000 x9 : 85d94360943dca00 [ 80.769083][ T5070] x8 : 85d94360943dca00 x7 : 0000000000000001 x6 : 0000000000000001 [ 80.770387][ T5070] x5 : ffff8000202070d8 x4 : ffff80001437f3e0 x3 : ffff800008509220 [ 80.771662][ T5070] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 80.772945][ T5070] Call trace: [ 80.773456][ T5070] btrfs_run_delayed_refs+0x3e4/0x458 [ 80.774347][ T5070] btrfs_commit_transaction+0x1e0/0x3078 [ 80.775216][ T5070] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 80.776132][ T5070] btrfs_ioctl+0x50c/0xa8c [ 80.776809][ T5070] __arm64_sys_ioctl+0x14c/0x1c8 [ 80.777650][ T5070] invoke_syscall+0x98/0x2b0 [ 80.778415][ T5070] el0_svc_common+0x138/0x258 [ 80.779174][ T5070] do_el0_svc+0x58/0x13c [ 80.779890][ T5070] el0_svc+0x78/0x1d0 [ 80.780518][ T5070] el0t_64_sync_handler+0xcc/0xe4 [ 80.781320][ T5070] el0t_64_sync+0x1a0/0x1a4 [ 80.782030][ T5070] irq event stamp: 79078 [ 80.782717][ T5070] hardirqs last enabled at (79077): [] __up_console_sem+0xb4/0xfc [ 80.784279][ T5070] hardirqs last disabled at (79078): [] el1_dbg+0x24/0x80 [ 80.785805][ T5070] softirqs last enabled at (79044): [] handle_softirqs+0xa40/0xbe4 [ 80.787417][ T5070] softirqs last disabled at (79017): [] __irq_exit_rcu+0x240/0x43c [ 80.789025][ T5070] ---[ end trace 28ba6f7054f9b11d ]--- [ 80.790527][ T5070] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 80.792115][ T5070] BTRFS info (device loop0): forced readonly [ 80.931253][ T5093] loop0: detected capacity change from 0 to 32768 [ 80.939567][ T5093] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.21 (5093) [ 80.943233][ T5093] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 80.944763][ T5093] BTRFS info (device loop0): using free space tree [ 80.945816][ T5093] BTRFS info (device loop0): has skinny extents [ 80.957311][ T5093] BTRFS info (device loop0): enabling ssd optimizations [ 80.960762][ T5093] FAULT_INJECTION: forcing a failure. [ 80.960762][ T5093] name failslab, interval 1, probability 0, space 0, times 0 [ 80.962888][ T5093] CPU: 1 PID: 5093 Comm: syz.0.21 Tainted: G W syzkaller #0 [ 80.964197][ T5093] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 80.965735][ T5093] Call trace: [ 80.966271][ T5093] dump_backtrace+0x0/0x458 [ 80.967021][ T5093] show_stack+0x2c/0x3c [ 80.967710][ T5093] __dump_stack+0x30/0x40 [ 80.968377][ T5093] dump_stack_lvl+0xf4/0x15c [ 80.969130][ T5093] dump_stack+0x1c/0x5c [ 80.969829][ T5093] should_fail+0x3bc/0x514 [ 80.970600][ T5093] __should_failslab+0xbc/0x10c [ 80.971409][ T5093] should_failslab+0x10/0x28 [ 80.972125][ T5093] slab_pre_alloc_hook+0x64/0xe8 [ 80.972921][ T5093] kmem_cache_alloc+0x94/0x3d4 [ 80.973673][ T5093] btrfs_alloc_path+0x5c/0x68 [ 80.974414][ T5093] __btrfs_run_delayed_refs+0xe70/0x348c [ 80.975342][ T5093] btrfs_run_delayed_refs+0x124/0x458 [ 80.976253][ T5093] btrfs_commit_transaction+0x1e0/0x3078 [ 80.977250][ T5093] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 80.978182][ T5093] btrfs_ioctl+0x50c/0xa8c [ 80.978903][ T5093] __arm64_sys_ioctl+0x14c/0x1c8 [ 80.979689][ T5093] invoke_syscall+0x98/0x2b0 [ 80.980572][ T5093] el0_svc_common+0x138/0x258 [ 80.981347][ T5093] do_el0_svc+0x58/0x13c [ 80.982104][ T5093] el0_svc+0x78/0x1d0 [ 80.982778][ T5093] el0t_64_sync_handler+0xcc/0xe4 [ 80.983657][ T5093] el0t_64_sync+0x1a0/0x1a4 [ 80.985539][ T5093] BTRFS error (device loop0): failed to run delayed ref for logical 5242880 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 80.987727][ T5093] ------------[ cut here ]------------ [ 80.989182][ T5093] WARNING: CPU: 1 PID: 5093 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 80.990794][ T5093] Modules linked in: [ 80.991419][ T5093] CPU: 1 PID: 5093 Comm: syz.0.21 Tainted: G W syzkaller #0 [ 80.992799][ T5093] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 80.994469][ T5093] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 80.995708][ T5093] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 80.996569][ T5093] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 80.997493][ T5093] sp : ffff8000201077d0 [ 80.998115][ T5093] x29: ffff8000201077e0 x28: ffff0000db88b000 x27: dfff800000000000 [ 80.999464][ T5093] x26: ffff0000db88b024 x25: ffff0000d59fc000 x24: 1fffe0001bcb5aa5 [ 81.000913][ T5093] x23: 1fffe0001bcb5aa5 x22: ffff0000de5ad528 x21: 00000000fffffff4 [ 81.002216][ T5093] x20: 0000000000000051 x19: ffff0000de5ad4d0 x18: 0000000000000001 [ 81.003539][ T5093] x17: 0000000000000000 x16: ffff80001125f020 x15: 00000000ffffffff [ 81.004924][ T5093] x14: 0000000000000001 x13: 1fffe000341f47ab x12: 0000000000ff0100 [ 81.006335][ T5093] x11: 0000000000000000 x10: 0000000000000000 x9 : 217068f075700200 [ 81.007794][ T5093] x8 : 217068f075700200 x7 : 0000000000000001 x6 : 0000000000000001 [ 81.009112][ T5093] x5 : ffff8000201070d8 x4 : ffff80001437f3e0 x3 : ffff800008509220 [ 81.010447][ T5093] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 81.011813][ T5093] Call trace: [ 81.012447][ T5093] btrfs_run_delayed_refs+0x3e4/0x458 [ 81.013321][ T5093] btrfs_commit_transaction+0x1e0/0x3078 [ 81.014258][ T5093] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 81.015135][ T5093] btrfs_ioctl+0x50c/0xa8c [ 81.015904][ T5093] __arm64_sys_ioctl+0x14c/0x1c8 [ 81.016773][ T5093] invoke_syscall+0x98/0x2b0 [ 81.017543][ T5093] el0_svc_common+0x138/0x258 [ 81.018355][ T5093] do_el0_svc+0x58/0x13c [ 81.019013][ T5093] el0_svc+0x78/0x1d0 [ 81.019658][ T5093] el0t_64_sync_handler+0xcc/0xe4 [ 81.020470][ T5093] el0t_64_sync+0x1a0/0x1a4 [ 81.021213][ T5093] irq event stamp: 79036 [ 81.021971][ T5093] hardirqs last enabled at (79035): [] __up_console_sem+0xb4/0xfc [ 81.023614][ T5093] hardirqs last disabled at (79036): [] el1_dbg+0x24/0x80 [ 81.025097][ T5093] softirqs last enabled at (79010): [] handle_softirqs+0xa40/0xbe4 [ 81.026689][ T5093] softirqs last disabled at (78999): [] __irq_exit_rcu+0x240/0x43c [ 81.028357][ T5093] ---[ end trace 28ba6f7054f9b11e ]--- [ 81.030274][ T5093] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 81.031797][ T5093] BTRFS info (device loop0): forced readonly [ 81.171830][ T5115] loop0: detected capacity change from 0 to 32768 [ 81.208330][ T5115] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.22 (5115) [ 81.270293][ T5115] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 81.271797][ T5115] BTRFS info (device loop0): using free space tree [ 81.272842][ T5115] BTRFS info (device loop0): has skinny extents [ 81.280823][ T5115] BTRFS info (device loop0): enabling ssd optimizations [ 81.284582][ T5115] FAULT_INJECTION: forcing a failure. [ 81.284582][ T5115] name failslab, interval 1, probability 0, space 0, times 0 [ 81.286835][ T5115] CPU: 1 PID: 5115 Comm: syz.0.22 Tainted: G W syzkaller #0 [ 81.288319][ T5115] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 81.289961][ T5115] Call trace: [ 81.290530][ T5115] dump_backtrace+0x0/0x458 [ 81.291329][ T5115] show_stack+0x2c/0x3c [ 81.291990][ T5115] __dump_stack+0x30/0x40 [ 81.292761][ T5115] dump_stack_lvl+0xf4/0x15c [ 81.293522][ T5115] dump_stack+0x1c/0x5c [ 81.294170][ T5115] should_fail+0x3bc/0x514 [ 81.294964][ T5115] __should_failslab+0xbc/0x10c [ 81.295815][ T5115] should_failslab+0x10/0x28 [ 81.296585][ T5115] slab_pre_alloc_hook+0x64/0xe8 [ 81.297370][ T5115] kmem_cache_alloc+0x94/0x3d4 [ 81.298156][ T5115] btrfs_alloc_path+0x5c/0x68 [ 81.298933][ T5115] __btrfs_free_extent+0x1a8/0x1abc [ 81.299889][ T5115] __btrfs_run_delayed_refs+0xbf0/0x348c [ 81.300839][ T5115] btrfs_run_delayed_refs+0x124/0x458 [ 81.301789][ T5115] btrfs_commit_transaction+0x1e0/0x3078 [ 81.302723][ T5115] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 81.303623][ T5115] btrfs_ioctl+0x50c/0xa8c [ 81.304403][ T5115] __arm64_sys_ioctl+0x14c/0x1c8 [ 81.305290][ T5115] invoke_syscall+0x98/0x2b0 [ 81.306039][ T5115] el0_svc_common+0x138/0x258 [ 81.306808][ T5115] do_el0_svc+0x58/0x13c [ 81.307488][ T5115] el0_svc+0x78/0x1d0 [ 81.308114][ T5115] el0t_64_sync_handler+0xcc/0xe4 [ 81.308881][ T5115] el0t_64_sync+0x1a0/0x1a4 [ 81.314882][ T5115] BTRFS error (device loop0): failed to run delayed ref for logical 5255168 num_bytes 4096 type 176 action 2 ref_mod 1: -12 [ 81.316957][ T5115] ------------[ cut here ]------------ [ 81.318157][ T5115] WARNING: CPU: 1 PID: 5115 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 81.319869][ T5115] Modules linked in: [ 81.320496][ T5115] CPU: 1 PID: 5115 Comm: syz.0.22 Tainted: G W syzkaller #0 [ 81.321886][ T5115] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 81.323557][ T5115] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 81.324927][ T5115] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 81.325854][ T5115] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 81.326810][ T5115] sp : ffff8000206477d0 [ 81.327511][ T5115] x29: ffff8000206477e0 x28: ffff0000db94e000 x27: dfff800000000000 [ 81.328844][ T5115] x26: ffff0000db94e024 x25: ffff0000c2d38000 x24: 1fffe0001bcb5ad1 [ 81.330084][ T5115] x23: 1fffe0001bcb5ad1 x22: ffff0000de5ad688 x21: 00000000fffffff4 [ 81.331383][ T5115] x20: 0000000000000051 x19: ffff0000de5ad630 x18: 0000000000000001 [ 81.332760][ T5115] x17: 0000000000000000 x16: ffff80001125f020 x15: 00000000ffffffff [ 81.334170][ T5115] x14: 0000000000000001 x13: 1fffe000341f47ab x12: 0000000000ff0100 [ 81.335536][ T5115] x11: 0000000000000000 x10: 0000000000000000 x9 : f0d4ed88e7754a00 [ 81.336893][ T5115] x8 : f0d4ed88e7754a00 x7 : 0000000000000001 x6 : 0000000000000001 [ 81.338235][ T5115] x5 : ffff8000206470d8 x4 : ffff80001437f3e0 x3 : ffff800008509220 [ 81.339588][ T5115] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 81.340901][ T5115] Call trace: [ 81.341451][ T5115] btrfs_run_delayed_refs+0x3e4/0x458 [ 81.342380][ T5115] btrfs_commit_transaction+0x1e0/0x3078 [ 81.343334][ T5115] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 81.344267][ T5115] btrfs_ioctl+0x50c/0xa8c [ 81.345041][ T5115] __arm64_sys_ioctl+0x14c/0x1c8 [ 81.345856][ T5115] invoke_syscall+0x98/0x2b0 [ 81.346638][ T5115] el0_svc_common+0x138/0x258 [ 81.347378][ T5115] do_el0_svc+0x58/0x13c [ 81.348022][ T5115] el0_svc+0x78/0x1d0 [ 81.348657][ T5115] el0t_64_sync_handler+0xcc/0xe4 [ 81.349473][ T5115] el0t_64_sync+0x1a0/0x1a4 [ 81.350202][ T5115] irq event stamp: 79758 [ 81.350937][ T5115] hardirqs last enabled at (79757): [] __up_console_sem+0xb4/0xfc [ 81.352490][ T5115] hardirqs last disabled at (79758): [] el1_dbg+0x24/0x80 [ 81.353964][ T5115] softirqs last enabled at (79746): [] handle_softirqs+0xa40/0xbe4 [ 81.355422][ T5115] softirqs last disabled at (79723): [] __irq_exit_rcu+0x240/0x43c [ 81.356953][ T5115] ---[ end trace 28ba6f7054f9b11f ]--- [ 81.359386][ T5115] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 81.360952][ T5115] BTRFS info (device loop0): forced readonly [ 81.550793][ T5136] loop0: detected capacity change from 0 to 32768 [ 81.561852][ T5136] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.23 (5136) [ 81.566380][ T5136] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 81.567995][ T5136] BTRFS info (device loop0): using free space tree [ 81.569110][ T5136] BTRFS info (device loop0): has skinny extents [ 81.582181][ T5136] BTRFS info (device loop0): enabling ssd optimizations [ 81.586155][ T5136] FAULT_INJECTION: forcing a failure. [ 81.586155][ T5136] name failslab, interval 1, probability 0, space 0, times 0 [ 81.588720][ T5136] CPU: 0 PID: 5136 Comm: syz.0.23 Tainted: G W syzkaller #0 [ 81.590126][ T5136] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 81.591920][ T5136] Call trace: [ 81.592448][ T5136] dump_backtrace+0x0/0x458 [ 81.593207][ T5136] show_stack+0x2c/0x3c [ 81.593913][ T5136] __dump_stack+0x30/0x40 [ 81.594661][ T5136] dump_stack_lvl+0xf4/0x15c [ 81.595524][ T5136] dump_stack+0x1c/0x5c [ 81.596198][ T5136] should_fail+0x3bc/0x514 [ 81.596863][ T5136] __should_failslab+0xbc/0x10c [ 81.597677][ T5136] should_failslab+0x10/0x28 [ 81.598467][ T5136] slab_pre_alloc_hook+0x64/0xe8 [ 81.599274][ T5136] kmem_cache_alloc+0x94/0x3d4 [ 81.600070][ T5136] btrfs_alloc_path+0x5c/0x68 [ 81.600865][ T5136] __btrfs_free_extent+0x1a8/0x1abc [ 81.601692][ T5136] __btrfs_run_delayed_refs+0xbf0/0x348c [ 81.602681][ T5136] btrfs_run_delayed_refs+0x124/0x458 [ 81.603589][ T5136] btrfs_commit_transaction+0x1e0/0x3078 [ 81.604571][ T5136] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 81.605525][ T5136] btrfs_ioctl+0x50c/0xa8c [ 81.606234][ T5136] __arm64_sys_ioctl+0x14c/0x1c8 [ 81.607076][ T5136] invoke_syscall+0x98/0x2b0 [ 81.607787][ T5136] el0_svc_common+0x138/0x258 [ 81.608598][ T5136] do_el0_svc+0x58/0x13c [ 81.609279][ T5136] el0_svc+0x78/0x1d0 [ 81.609928][ T5136] el0t_64_sync_handler+0xcc/0xe4 [ 81.610812][ T5136] el0t_64_sync+0x1a0/0x1a4 [ 81.614068][ T5136] BTRFS error (device loop0): failed to run delayed ref for logical 5255168 num_bytes 4096 type 176 action 2 ref_mod 1: -12 [ 81.616108][ T5136] ------------[ cut here ]------------ [ 81.617077][ T5136] WARNING: CPU: 0 PID: 5136 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 81.618667][ T5136] Modules linked in: [ 81.619311][ T5136] CPU: 0 PID: 5136 Comm: syz.0.23 Tainted: G W syzkaller #0 [ 81.620676][ T5136] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 81.622249][ T5136] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 81.623450][ T5136] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 81.624423][ T5136] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 81.625279][ T5136] sp : ffff8000207477d0 [ 81.625869][ T5136] x29: ffff8000207477e0 x28: ffff0000d4c2c000 x27: dfff800000000000 [ 81.627135][ T5136] x26: ffff0000d4c2c024 x25: ffff0000daa4c000 x24: 1fffe0001bcf9cbb [ 81.628347][ T5136] x23: 1fffe0001bcf9cbb x22: ffff0000de7ce5d8 x21: 00000000fffffff4 [ 81.629599][ T5136] x20: 0000000000000051 x19: ffff0000de7ce580 x18: 0000000000000001 [ 81.630876][ T5136] x17: 0000000000000000 x16: ffff80001125f020 x15: 00000000ffffffff [ 81.632152][ T5136] x14: 0000000000000001 x13: 1fffe000341f05ab x12: 0000000000ff0100 [ 81.633416][ T5136] x11: 0000000000000000 x10: 0000000000000000 x9 : 996724aabef6ba00 [ 81.634702][ T5136] x8 : 996724aabef6ba00 x7 : 0000000000000001 x6 : 0000000000000001 [ 81.636056][ T5136] x5 : ffff8000207470d8 x4 : ffff80001437f3e0 x3 : ffff800008509220 [ 81.637393][ T5136] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 81.638671][ T5136] Call trace: [ 81.639240][ T5136] btrfs_run_delayed_refs+0x3e4/0x458 [ 81.640128][ T5136] btrfs_commit_transaction+0x1e0/0x3078 [ 81.641052][ T5136] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 81.641891][ T5136] btrfs_ioctl+0x50c/0xa8c [ 81.642578][ T5136] __arm64_sys_ioctl+0x14c/0x1c8 [ 81.643379][ T5136] invoke_syscall+0x98/0x2b0 [ 81.644195][ T5136] el0_svc_common+0x138/0x258 [ 81.644978][ T5136] do_el0_svc+0x58/0x13c [ 81.645691][ T5136] el0_svc+0x78/0x1d0 [ 81.646385][ T5136] el0t_64_sync_handler+0xcc/0xe4 [ 81.647246][ T5136] el0t_64_sync+0x1a0/0x1a4 [ 81.648010][ T5136] irq event stamp: 79422 [ 81.648605][ T5136] hardirqs last enabled at (79421): [] __up_console_sem+0xb4/0xfc [ 81.650054][ T5136] hardirqs last disabled at (79422): [] el1_dbg+0x24/0x80 [ 81.651531][ T5136] softirqs last enabled at (79390): [] handle_softirqs+0xa40/0xbe4 [ 81.653184][ T5136] softirqs last disabled at (79303): [] __irq_exit_rcu+0x240/0x43c [ 81.654807][ T5136] ---[ end trace 28ba6f7054f9b120 ]--- [ 81.656532][ T5136] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 81.659033][ T5136] BTRFS info (device loop0): forced readonly [ 81.838393][ T5157] loop0: detected capacity change from 0 to 32768 [ 81.878320][ T5157] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.24 (5157) [ 81.881318][ T5157] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 81.883492][ T5157] BTRFS info (device loop0): using free space tree [ 81.884638][ T5157] BTRFS info (device loop0): has skinny extents [ 81.897191][ T5157] BTRFS info (device loop0): enabling ssd optimizations [ 81.901501][ T5157] FAULT_INJECTION: forcing a failure. [ 81.901501][ T5157] name failslab, interval 1, probability 0, space 0, times 0 [ 81.903629][ T5157] CPU: 1 PID: 5157 Comm: syz.0.24 Tainted: G W syzkaller #0 [ 81.905002][ T5157] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 81.906768][ T5157] Call trace: [ 81.907284][ T5157] dump_backtrace+0x0/0x458 [ 81.908021][ T5157] show_stack+0x2c/0x3c [ 81.908733][ T5157] __dump_stack+0x30/0x40 [ 81.909492][ T5157] dump_stack_lvl+0xf4/0x15c [ 81.910283][ T5157] dump_stack+0x1c/0x5c [ 81.910997][ T5157] should_fail+0x3bc/0x514 [ 81.911743][ T5157] __should_failslab+0xbc/0x10c [ 81.912573][ T5157] should_failslab+0x10/0x28 [ 81.913353][ T5157] slab_pre_alloc_hook+0x64/0xe8 [ 81.914154][ T5157] kmem_cache_alloc+0x94/0x3d4 [ 81.915003][ T5157] btrfs_alloc_path+0x5c/0x68 [ 81.915807][ T5157] __btrfs_run_delayed_refs+0xe70/0x348c [ 81.916802][ T5157] btrfs_run_delayed_refs+0x124/0x458 [ 81.917710][ T5157] btrfs_commit_transaction+0x1e0/0x3078 [ 81.918632][ T5157] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 81.919541][ T5157] btrfs_ioctl+0x50c/0xa8c [ 81.920333][ T5157] __arm64_sys_ioctl+0x14c/0x1c8 [ 81.921156][ T5157] invoke_syscall+0x98/0x2b0 [ 81.921961][ T5157] el0_svc_common+0x138/0x258 [ 81.922778][ T5157] do_el0_svc+0x58/0x13c [ 81.923555][ T5157] el0_svc+0x78/0x1d0 [ 81.924260][ T5157] el0t_64_sync_handler+0xcc/0xe4 [ 81.925053][ T5157] el0t_64_sync+0x1a0/0x1a4 [ 81.927454][ T5157] BTRFS error (device loop0): failed to run delayed ref for logical 5242880 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 81.929718][ T5157] ------------[ cut here ]------------ [ 81.930742][ T5157] WARNING: CPU: 1 PID: 5157 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 81.932397][ T5157] Modules linked in: [ 81.933005][ T5157] CPU: 1 PID: 5157 Comm: syz.0.24 Tainted: G W syzkaller #0 [ 81.934263][ T5157] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 81.935880][ T5157] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 81.937063][ T5157] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 81.937973][ T5157] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 81.938939][ T5157] sp : ffff800020c677d0 [ 81.939675][ T5157] x29: ffff800020c677e0 x28: ffff0000c8c97000 x27: dfff800000000000 [ 81.941141][ T5157] x26: ffff0000c8c97024 x25: ffff0000dd2e0000 x24: 1fffe0001bcb5afd [ 81.942397][ T5157] x23: 1fffe0001bcb5afd x22: ffff0000de5ad7e8 x21: 00000000fffffff4 [ 81.943720][ T5157] x20: 0000000000000051 x19: ffff0000de5ad790 x18: 0000000000000001 [ 81.945083][ T5157] x17: 0000000000000000 x16: ffff80001125f020 x15: 00000000ffffffff [ 81.946468][ T5157] x14: 0000000000000001 x13: 1fffe000341f47ab x12: 0000000000ff0100 [ 81.947820][ T5157] x11: 0000000000000000 x10: 0000000000000000 x9 : 2808abc09b594500 [ 81.949125][ T5157] x8 : 2808abc09b594500 x7 : 0000000000000001 x6 : 0000000000000001 [ 81.950457][ T5157] x5 : ffff800020c670d8 x4 : ffff80001437f3e0 x3 : ffff800008509220 [ 81.951684][ T5157] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 81.952964][ T5157] Call trace: [ 81.953505][ T5157] btrfs_run_delayed_refs+0x3e4/0x458 [ 81.954384][ T5157] btrfs_commit_transaction+0x1e0/0x3078 [ 81.955246][ T5157] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 81.956139][ T5157] btrfs_ioctl+0x50c/0xa8c [ 81.956891][ T5157] __arm64_sys_ioctl+0x14c/0x1c8 [ 81.957704][ T5157] invoke_syscall+0x98/0x2b0 [ 81.958487][ T5157] el0_svc_common+0x138/0x258 [ 81.959273][ T5157] do_el0_svc+0x58/0x13c [ 81.959980][ T5157] el0_svc+0x78/0x1d0 [ 81.960582][ T5157] el0t_64_sync_handler+0xcc/0xe4 [ 81.961381][ T5157] el0t_64_sync+0x1a0/0x1a4 [ 81.962095][ T5157] irq event stamp: 79140 [ 81.962786][ T5157] hardirqs last enabled at (79139): [] __up_console_sem+0xb4/0xfc [ 81.964385][ T5157] hardirqs last disabled at (79140): [] el1_dbg+0x24/0x80 [ 81.965853][ T5157] softirqs last enabled at (79102): [] handle_softirqs+0xa40/0xbe4 [ 81.967368][ T5157] softirqs last disabled at (79083): [] __irq_exit_rcu+0x240/0x43c [ 81.968780][ T5157] ---[ end trace 28ba6f7054f9b121 ]--- [ 81.970615][ T5157] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 81.972096][ T5157] BTRFS info (device loop0): forced readonly [ 82.148405][ T5179] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.25 (5179) [ 82.155749][ T5179] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 82.157543][ T5179] BTRFS info (device loop0): using free space tree [ 82.158619][ T5179] BTRFS info (device loop0): has skinny extents [ 82.173714][ T5179] BTRFS info (device loop0): enabling ssd optimizations [ 82.177295][ T5179] FAULT_INJECTION: forcing a failure. [ 82.177295][ T5179] name failslab, interval 1, probability 0, space 0, times 0 [ 82.179323][ T5179] CPU: 0 PID: 5179 Comm: syz.0.25 Tainted: G W syzkaller #0 [ 82.180713][ T5179] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 82.182314][ T5179] Call trace: [ 82.182874][ T5179] dump_backtrace+0x0/0x458 [ 82.183632][ T5179] show_stack+0x2c/0x3c [ 82.184364][ T5179] __dump_stack+0x30/0x40 [ 82.185130][ T5179] dump_stack_lvl+0xf4/0x15c [ 82.185946][ T5179] dump_stack+0x1c/0x5c [ 82.186651][ T5179] should_fail+0x3bc/0x514 [ 82.187374][ T5179] __should_failslab+0xbc/0x10c [ 82.188168][ T5179] should_failslab+0x10/0x28 [ 82.188992][ T5179] slab_pre_alloc_hook+0x64/0xe8 [ 82.189807][ T5179] kmem_cache_alloc+0x94/0x3d4 [ 82.190572][ T5179] btrfs_alloc_path+0x5c/0x68 [ 82.191351][ T5179] __btrfs_run_delayed_refs+0xe70/0x348c [ 82.192288][ T5179] btrfs_run_delayed_refs+0x124/0x458 [ 82.193147][ T5179] btrfs_commit_transaction+0x1e0/0x3078 [ 82.194079][ T5179] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 82.195036][ T5179] btrfs_ioctl+0x50c/0xa8c [ 82.195789][ T5179] __arm64_sys_ioctl+0x14c/0x1c8 [ 82.196635][ T5179] invoke_syscall+0x98/0x2b0 [ 82.197369][ T5179] el0_svc_common+0x138/0x258 [ 82.198210][ T5179] do_el0_svc+0x58/0x13c [ 82.198913][ T5179] el0_svc+0x78/0x1d0 [ 82.199555][ T5179] el0t_64_sync_handler+0xcc/0xe4 [ 82.200345][ T5179] el0t_64_sync+0x1a0/0x1a4 [ 82.201993][ T5179] BTRFS error (device loop0): failed to run delayed ref for logical 5242880 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 82.204031][ T5179] ------------[ cut here ]------------ [ 82.205012][ T5179] WARNING: CPU: 0 PID: 5179 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 82.206704][ T5179] Modules linked in: [ 82.207350][ T5179] CPU: 0 PID: 5179 Comm: syz.0.25 Tainted: G W syzkaller #0 [ 82.208813][ T5179] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 82.210532][ T5179] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 82.211864][ T5179] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 82.212877][ T5179] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 82.213862][ T5179] sp : ffff800020d677d0 [ 82.214556][ T5179] x29: ffff800020d677e0 x28: ffff0000cffef000 x27: dfff800000000000 [ 82.215946][ T5179] x26: ffff0000cffef024 x25: ffff0000d04f4000 x24: 1fffe0001bcf9ce7 [ 82.217413][ T5179] x23: 1fffe0001bcf9ce7 x22: ffff0000de7ce738 x21: 00000000fffffff4 [ 82.218767][ T5179] x20: 0000000000000051 x19: ffff0000de7ce6e0 x18: 0000000000000001 [ 82.220134][ T5179] x17: 0000000000000000 x16: ffff80001125f020 x15: 00000000ffffffff [ 82.221443][ T5179] x14: 0000000000000001 x13: 1fffe000341f05ab x12: 0000000000ff0100 [ 82.222871][ T5179] x11: 0000000000000000 x10: 0000000000000000 x9 : e97c376b611e1b00 [ 82.224290][ T5179] x8 : e97c376b611e1b00 x7 : 0000000000000001 x6 : 0000000000000001 [ 82.225660][ T5179] x5 : ffff800020d670d8 x4 : ffff80001437f3e0 x3 : ffff800008509220 [ 82.227028][ T5179] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 82.228342][ T5179] Call trace: [ 82.228876][ T5179] btrfs_run_delayed_refs+0x3e4/0x458 [ 82.229807][ T5179] btrfs_commit_transaction+0x1e0/0x3078 [ 82.230761][ T5179] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 82.231616][ T5179] btrfs_ioctl+0x50c/0xa8c [ 82.232332][ T5179] __arm64_sys_ioctl+0x14c/0x1c8 [ 82.233110][ T5179] invoke_syscall+0x98/0x2b0 [ 82.233860][ T5179] el0_svc_common+0x138/0x258 [ 82.234684][ T5179] do_el0_svc+0x58/0x13c [ 82.235346][ T5179] el0_svc+0x78/0x1d0 [ 82.235987][ T5179] el0t_64_sync_handler+0xcc/0xe4 [ 82.236849][ T5179] el0t_64_sync+0x1a0/0x1a4 [ 82.237566][ T5179] irq event stamp: 78742 [ 82.238345][ T5179] hardirqs last enabled at (78741): [] __up_console_sem+0xb4/0xfc [ 82.239885][ T5179] hardirqs last disabled at (78742): [] el1_dbg+0x24/0x80 [ 82.241347][ T5179] softirqs last enabled at (78708): [] handle_softirqs+0xa40/0xbe4 [ 82.242941][ T5179] softirqs last disabled at (78671): [] __irq_exit_rcu+0x240/0x43c [ 82.244563][ T5179] ---[ end trace 28ba6f7054f9b122 ]--- [ 82.246839][ T5179] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 82.248715][ T5179] BTRFS info (device loop0): forced readonly [ 82.472160][ T5201] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.26 (5201) [ 82.475703][ T5201] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 82.477348][ T5201] BTRFS info (device loop0): using free space tree [ 82.478551][ T5201] BTRFS info (device loop0): has skinny extents [ 82.486907][ T5201] BTRFS info (device loop0): enabling ssd optimizations [ 82.491293][ T5201] FAULT_INJECTION: forcing a failure. [ 82.491293][ T5201] name failslab, interval 1, probability 0, space 0, times 0 [ 82.493328][ T5201] CPU: 1 PID: 5201 Comm: syz.0.26 Tainted: G W syzkaller #0 [ 82.494750][ T5201] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 82.496454][ T5201] Call trace: [ 82.497007][ T5201] dump_backtrace+0x0/0x458 [ 82.497809][ T5201] show_stack+0x2c/0x3c [ 82.498559][ T5201] __dump_stack+0x30/0x40 [ 82.499189][ T5201] dump_stack_lvl+0xf4/0x15c [ 82.499859][ T5201] dump_stack+0x1c/0x5c [ 82.500509][ T5201] should_fail+0x3bc/0x514 [ 82.501216][ T5201] __should_failslab+0xbc/0x10c [ 82.502042][ T5201] should_failslab+0x10/0x28 [ 82.502810][ T5201] slab_pre_alloc_hook+0x64/0xe8 [ 82.503689][ T5201] kmem_cache_alloc+0x94/0x3d4 [ 82.504564][ T5201] btrfs_alloc_path+0x5c/0x68 [ 82.505338][ T5201] __btrfs_run_delayed_refs+0xe70/0x348c [ 82.506295][ T5201] btrfs_run_delayed_refs+0x124/0x458 [ 82.507269][ T5201] btrfs_commit_transaction+0x1e0/0x3078 [ 82.508218][ T5201] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 82.509142][ T5201] btrfs_ioctl+0x50c/0xa8c [ 82.509922][ T5201] __arm64_sys_ioctl+0x14c/0x1c8 [ 82.510756][ T5201] invoke_syscall+0x98/0x2b0 [ 82.511536][ T5201] el0_svc_common+0x138/0x258 [ 82.512273][ T5201] do_el0_svc+0x58/0x13c [ 82.512980][ T5201] el0_svc+0x78/0x1d0 [ 82.513657][ T5201] el0t_64_sync_handler+0xcc/0xe4 [ 82.514485][ T5201] el0t_64_sync+0x1a0/0x1a4 [ 82.516643][ T5201] BTRFS error (device loop0): failed to run delayed ref for logical 5242880 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 82.518886][ T5201] ------------[ cut here ]------------ [ 82.519874][ T5201] WARNING: CPU: 1 PID: 5201 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 82.521491][ T5201] Modules linked in: [ 82.522111][ T5201] CPU: 1 PID: 5201 Comm: syz.0.26 Tainted: G W syzkaller #0 [ 82.523598][ T5201] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 82.525442][ T5201] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 82.526692][ T5201] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 82.527621][ T5201] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 82.528603][ T5201] sp : ffff800020e777d0 [ 82.529323][ T5201] x29: ffff800020e777e0 x28: ffff0000c8c94000 x27: dfff800000000000 [ 82.530670][ T5201] x26: ffff0000c8c94024 x25: ffff0000de34c000 x24: 1fffe0001bcb5b29 [ 82.532091][ T5201] x23: 1fffe0001bcb5b29 x22: ffff0000de5ad948 x21: 00000000fffffff4 [ 82.533436][ T5201] x20: 0000000000000051 x19: ffff0000de5ad8f0 x18: 0000000000000001 [ 82.534765][ T5201] x17: 0000000000000000 x16: ffff80001125f020 x15: 00000000ffffffff [ 82.536261][ T5201] x14: 0000000000000001 x13: 1fffe000341f47ab x12: 0000000000ff0100 [ 82.537676][ T5201] x11: 0000000000000000 x10: 0000000000000000 x9 : 64be6af9861d2d00 [ 82.539171][ T5201] x8 : 64be6af9861d2d00 x7 : 0000000000000001 x6 : 0000000000000001 [ 82.540507][ T5201] x5 : ffff800020e770d8 x4 : ffff80001437f3e0 x3 : ffff800008509220 [ 82.541869][ T5201] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 82.543222][ T5201] Call trace: [ 82.543777][ T5201] btrfs_run_delayed_refs+0x3e4/0x458 [ 82.544660][ T5201] btrfs_commit_transaction+0x1e0/0x3078 [ 82.545527][ T5201] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 82.546388][ T5201] btrfs_ioctl+0x50c/0xa8c [ 82.547058][ T5201] __arm64_sys_ioctl+0x14c/0x1c8 [ 82.547932][ T5201] invoke_syscall+0x98/0x2b0 [ 82.548681][ T5201] el0_svc_common+0x138/0x258 [ 82.549461][ T5201] do_el0_svc+0x58/0x13c [ 82.550100][ T5201] el0_svc+0x78/0x1d0 [ 82.550706][ T5201] el0t_64_sync_handler+0xcc/0xe4 [ 82.551503][ T5201] el0t_64_sync+0x1a0/0x1a4 [ 82.552282][ T5201] irq event stamp: 78660 [ 82.552979][ T5201] hardirqs last enabled at (78659): [] __up_console_sem+0xb4/0xfc [ 82.554649][ T5201] hardirqs last disabled at (78660): [] el1_dbg+0x24/0x80 [ 82.556022][ T5201] softirqs last enabled at (78638): [] handle_softirqs+0xa40/0xbe4 [ 82.557580][ T5201] softirqs last disabled at (78609): [] __irq_exit_rcu+0x240/0x43c [ 82.559186][ T5201] ---[ end trace 28ba6f7054f9b123 ]--- [ 82.561052][ T5201] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 82.562650][ T5201] BTRFS info (device loop0): forced readonly [ 82.741272][ T5223] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.27 (5223) [ 82.746614][ T5223] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 82.748129][ T5223] BTRFS info (device loop0): using free space tree [ 82.749264][ T5223] BTRFS info (device loop0): has skinny extents [ 82.765687][ T5223] BTRFS info (device loop0): enabling ssd optimizations [ 82.769412][ T5223] FAULT_INJECTION: forcing a failure. [ 82.769412][ T5223] name failslab, interval 1, probability 0, space 0, times 0 [ 82.771338][ T5223] CPU: 0 PID: 5223 Comm: syz.0.27 Tainted: G W syzkaller #0 [ 82.772695][ T5223] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 82.774342][ T5223] Call trace: [ 82.774816][ T5223] dump_backtrace+0x0/0x458 [ 82.775539][ T5223] show_stack+0x2c/0x3c [ 82.776235][ T5223] __dump_stack+0x30/0x40 [ 82.776924][ T5223] dump_stack_lvl+0xf4/0x15c [ 82.777715][ T5223] dump_stack+0x1c/0x5c [ 82.778372][ T5223] should_fail+0x3bc/0x514 [ 82.779129][ T5223] __should_failslab+0xbc/0x10c [ 82.779924][ T5223] should_failslab+0x10/0x28 [ 82.780701][ T5223] slab_pre_alloc_hook+0x64/0xe8 [ 82.781508][ T5223] kmem_cache_alloc+0x94/0x3d4 [ 82.782299][ T5223] btrfs_alloc_path+0x5c/0x68 [ 82.783088][ T5223] __btrfs_run_delayed_refs+0xe70/0x348c [ 82.784058][ T5223] btrfs_run_delayed_refs+0x124/0x458 [ 82.785023][ T5223] btrfs_commit_transaction+0x1e0/0x3078 [ 82.786014][ T5223] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 82.786956][ T5223] btrfs_ioctl+0x50c/0xa8c [ 82.787713][ T5223] __arm64_sys_ioctl+0x14c/0x1c8 [ 82.788567][ T5223] invoke_syscall+0x98/0x2b0 [ 82.789391][ T5223] el0_svc_common+0x138/0x258 [ 82.790222][ T5223] do_el0_svc+0x58/0x13c [ 82.790934][ T5223] el0_svc+0x78/0x1d0 [ 82.791634][ T5223] el0t_64_sync_handler+0xcc/0xe4 [ 82.792570][ T5223] el0t_64_sync+0x1a0/0x1a4 [ 82.794472][ T5223] BTRFS error (device loop0): failed to run delayed ref for logical 5242880 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 82.796499][ T5223] ------------[ cut here ]------------ [ 82.797553][ T5223] WARNING: CPU: 0 PID: 5223 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 82.799262][ T5223] Modules linked in: [ 82.799917][ T5223] CPU: 0 PID: 5223 Comm: syz.0.27 Tainted: G W syzkaller #0 [ 82.801343][ T5223] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 82.803008][ T5223] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 82.804298][ T5223] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 82.805248][ T5223] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 82.806201][ T5223] sp : ffff800020d677d0 [ 82.806866][ T5223] x29: ffff800020d677e0 x28: ffff0000cffed000 x27: dfff800000000000 [ 82.808277][ T5223] x26: ffff0000cffed024 x25: ffff0000de34c000 x24: 1fffe0001bcf9d13 [ 82.809619][ T5223] x23: 1fffe0001bcf9d13 x22: ffff0000de7ce898 x21: 00000000fffffff4 [ 82.810990][ T5223] x20: 0000000000000051 x19: ffff0000de7ce840 x18: 0000000000000001 [ 82.812403][ T5223] x17: 0000000000000000 x16: ffff800008304af8 x15: 00000000ffffffff [ 82.813722][ T5223] x14: 0000000000000001 x13: 1ffff000041ace18 x12: 0000000000ff0100 [ 82.815016][ T5223] x11: 0000000000000000 x10: 0000000000000000 x9 : 0eb92f30d689ad00 [ 82.816315][ T5223] x8 : 0eb92f30d689ad00 x7 : 0000000000000001 x6 : 0000000000000001 [ 82.817653][ T5223] x5 : ffff800020d670d8 x4 : ffff80001437f3e0 x3 : ffff800008304c08 [ 82.819035][ T5223] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 82.820325][ T5223] Call trace: [ 82.820881][ T5223] btrfs_run_delayed_refs+0x3e4/0x458 [ 82.821768][ T5223] btrfs_commit_transaction+0x1e0/0x3078 [ 82.822695][ T5223] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 82.823629][ T5223] btrfs_ioctl+0x50c/0xa8c [ 82.824366][ T5223] __arm64_sys_ioctl+0x14c/0x1c8 [ 82.825163][ T5223] invoke_syscall+0x98/0x2b0 [ 82.825965][ T5223] el0_svc_common+0x138/0x258 [ 82.826754][ T5223] do_el0_svc+0x58/0x13c [ 82.827448][ T5223] el0_svc+0x78/0x1d0 [ 82.828115][ T5223] el0t_64_sync_handler+0xcc/0xe4 [ 82.828967][ T5223] el0t_64_sync+0x1a0/0x1a4 [ 82.829714][ T5223] irq event stamp: 79100 [ 82.830423][ T5223] hardirqs last enabled at (79099): [] __up_console_sem+0xb4/0xfc [ 82.831906][ T5223] hardirqs last disabled at (79100): [] el1_dbg+0x24/0x80 [ 82.833317][ T5223] softirqs last enabled at (79090): [] handle_softirqs+0xa40/0xbe4 [ 82.834845][ T5223] softirqs last disabled at (79075): [] __irq_exit_rcu+0x240/0x43c [ 82.836423][ T5223] ---[ end trace 28ba6f7054f9b124 ]--- [ 82.837960][ T5223] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 82.839549][ T5223] BTRFS info (device loop0): forced readonly [ 83.069745][ T5245] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.28 (5245) [ 83.073150][ T5245] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 83.074653][ T5245] BTRFS info (device loop0): using free space tree [ 83.075783][ T5245] BTRFS info (device loop0): has skinny extents [ 83.084065][ T5245] BTRFS info (device loop0): enabling ssd optimizations [ 83.088013][ T5245] FAULT_INJECTION: forcing a failure. [ 83.088013][ T5245] name failslab, interval 1, probability 0, space 0, times 0 [ 83.090064][ T5245] CPU: 0 PID: 5245 Comm: syz.0.28 Tainted: G W syzkaller #0 [ 83.091402][ T5245] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 83.092918][ T5245] Call trace: [ 83.093413][ T5245] dump_backtrace+0x0/0x458 [ 83.094153][ T5245] show_stack+0x2c/0x3c [ 83.094897][ T5245] __dump_stack+0x30/0x40 [ 83.095613][ T5245] dump_stack_lvl+0xf4/0x15c [ 83.096395][ T5245] dump_stack+0x1c/0x5c [ 83.097135][ T5245] should_fail+0x3bc/0x514 [ 83.097872][ T5245] __should_failslab+0xbc/0x10c [ 83.098690][ T5245] should_failslab+0x10/0x28 [ 83.099528][ T5245] slab_pre_alloc_hook+0x64/0xe8 [ 83.100420][ T5245] kmem_cache_alloc+0x94/0x3d4 [ 83.101295][ T5245] btrfs_alloc_path+0x5c/0x68 [ 83.102102][ T5245] __btrfs_run_delayed_refs+0xe70/0x348c [ 83.103036][ T5245] btrfs_run_delayed_refs+0x124/0x458 [ 83.103966][ T5245] btrfs_commit_transaction+0x1e0/0x3078 [ 83.104937][ T5245] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 83.105936][ T5245] btrfs_ioctl+0x50c/0xa8c [ 83.106693][ T5245] __arm64_sys_ioctl+0x14c/0x1c8 [ 83.107543][ T5245] invoke_syscall+0x98/0x2b0 [ 83.108283][ T5245] el0_svc_common+0x138/0x258 [ 83.109059][ T5245] do_el0_svc+0x58/0x13c [ 83.109789][ T5245] el0_svc+0x78/0x1d0 [ 83.110431][ T5245] el0t_64_sync_handler+0xcc/0xe4 [ 83.111222][ T5245] el0t_64_sync+0x1a0/0x1a4 [ 83.112281][ T5245] BTRFS error (device loop0): failed to run delayed ref for logical 5242880 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 83.114266][ T5245] ------------[ cut here ]------------ [ 83.115258][ T5245] WARNING: CPU: 0 PID: 5245 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 83.116803][ T5245] Modules linked in: [ 83.117430][ T5245] CPU: 0 PID: 5245 Comm: syz.0.28 Tainted: G W syzkaller #0 [ 83.118875][ T5245] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 83.120603][ T5245] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 83.121848][ T5245] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 83.122790][ T5245] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 83.123835][ T5245] sp : ffff800020e877d0 [ 83.124538][ T5245] x29: ffff800020e877e0 x28: ffff0000cffec000 x27: dfff800000000000 [ 83.125826][ T5245] x26: ffff0000cffec024 x25: ffff0000d4b40000 x24: 1fffe0001bcf9d3f [ 83.127217][ T5245] x23: 1fffe0001bcf9d3f x22: ffff0000de7ce9f8 x21: 00000000fffffff4 [ 83.128553][ T5245] x20: 0000000000000051 x19: ffff0000de7ce9a0 x18: 0000000000000001 [ 83.129948][ T5245] x17: 0000000000000000 x16: ffff80001125f020 x15: 00000000ffffffff [ 83.131361][ T5245] x14: 0000000000000001 x13: 1fffe000341f05ab x12: 0000000000ff0100 [ 83.132743][ T5245] x11: 0000000000000000 x10: 0000000000000000 x9 : ae0b2c036c206300 [ 83.134082][ T5245] x8 : ae0b2c036c206300 x7 : 0000000000000001 x6 : 0000000000000001 [ 83.135368][ T5245] x5 : ffff800020e870d8 x4 : ffff80001437f3e0 x3 : ffff800008509220 [ 83.136625][ T5245] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 83.137994][ T5245] Call trace: [ 83.138583][ T5245] btrfs_run_delayed_refs+0x3e4/0x458 [ 83.139492][ T5245] btrfs_commit_transaction+0x1e0/0x3078 [ 83.140455][ T5245] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 83.141435][ T5245] btrfs_ioctl+0x50c/0xa8c [ 83.142221][ T5245] __arm64_sys_ioctl+0x14c/0x1c8 [ 83.143026][ T5245] invoke_syscall+0x98/0x2b0 [ 83.143844][ T5245] el0_svc_common+0x138/0x258 [ 83.144600][ T5245] do_el0_svc+0x58/0x13c [ 83.145304][ T5245] el0_svc+0x78/0x1d0 [ 83.145960][ T5245] el0t_64_sync_handler+0xcc/0xe4 [ 83.146770][ T5245] el0t_64_sync+0x1a0/0x1a4 [ 83.147488][ T5245] irq event stamp: 78998 [ 83.148118][ T5245] hardirqs last enabled at (78997): [] __up_console_sem+0xb4/0xfc [ 83.149772][ T5245] hardirqs last disabled at (78998): [] el1_dbg+0x24/0x80 [ 83.151242][ T5245] softirqs last enabled at (78958): [] handle_softirqs+0xa40/0xbe4 [ 83.152881][ T5245] softirqs last disabled at (78941): [] __irq_exit_rcu+0x240/0x43c [ 83.154450][ T5245] ---[ end trace 28ba6f7054f9b125 ]--- [ 83.156146][ T5245] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 83.157813][ T5245] BTRFS info (device loop0): forced readonly [ 83.358368][ T5267] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.29 (5267) [ 83.362288][ T5267] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 83.363884][ T5267] BTRFS info (device loop0): using free space tree [ 83.365453][ T5267] BTRFS info (device loop0): has skinny extents [ 83.384361][ T5267] BTRFS info (device loop0): enabling ssd optimizations [ 83.388268][ T5267] FAULT_INJECTION: forcing a failure. [ 83.388268][ T5267] name failslab, interval 1, probability 0, space 0, times 0 [ 83.390237][ T5267] CPU: 1 PID: 5267 Comm: syz.0.29 Tainted: G W syzkaller #0 [ 83.391591][ T5267] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 83.393208][ T5267] Call trace: [ 83.393787][ T5267] dump_backtrace+0x0/0x458 [ 83.394502][ T5267] show_stack+0x2c/0x3c [ 83.395141][ T5267] __dump_stack+0x30/0x40 [ 83.395824][ T5267] dump_stack_lvl+0xf4/0x15c [ 83.396653][ T5267] dump_stack+0x1c/0x5c [ 83.397295][ T5267] should_fail+0x3bc/0x514 [ 83.397990][ T5267] __should_failslab+0xbc/0x10c [ 83.398940][ T5267] should_failslab+0x10/0x28 [ 83.399732][ T5267] slab_pre_alloc_hook+0x64/0xe8 [ 83.400478][ T5267] kmem_cache_alloc+0x94/0x3d4 [ 83.401320][ T5267] btrfs_alloc_path+0x5c/0x68 [ 83.402188][ T5267] __btrfs_free_extent+0x1a8/0x1abc [ 83.403063][ T5267] __btrfs_run_delayed_refs+0xbf0/0x348c [ 83.404021][ T5267] btrfs_run_delayed_refs+0x124/0x458 [ 83.404930][ T5267] btrfs_commit_transaction+0x1e0/0x3078 [ 83.405943][ T5267] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 83.406785][ T5267] btrfs_ioctl+0x50c/0xa8c [ 83.407504][ T5267] __arm64_sys_ioctl+0x14c/0x1c8 [ 83.408349][ T5267] invoke_syscall+0x98/0x2b0 [ 83.409119][ T5267] el0_svc_common+0x138/0x258 [ 83.409898][ T5267] do_el0_svc+0x58/0x13c [ 83.410607][ T5267] el0_svc+0x78/0x1d0 [ 83.411328][ T5267] el0t_64_sync_handler+0xcc/0xe4 [ 83.412222][ T5267] el0t_64_sync+0x1a0/0x1a4 [ 83.413425][ T5267] BTRFS error (device loop0): failed to run delayed ref for logical 5255168 num_bytes 4096 type 176 action 2 ref_mod 1: -12 [ 83.415572][ T5267] ------------[ cut here ]------------ [ 83.416644][ T5267] WARNING: CPU: 1 PID: 5267 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 83.418263][ T5267] Modules linked in: [ 83.418964][ T5267] CPU: 1 PID: 5267 Comm: syz.0.29 Tainted: G W syzkaller #0 [ 83.420492][ T5267] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 83.422192][ T5267] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 83.423451][ T5267] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 83.424322][ T5267] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 83.425229][ T5267] sp : ffff8000211d77d0 [ 83.425933][ T5267] x29: ffff8000211d77e0 x28: ffff0000e70bd000 x27: dfff800000000000 [ 83.427227][ T5267] x26: ffff0000e70bd024 x25: ffff0000de1bc000 x24: 1fffe0001bcb5a0b [ 83.428543][ T5267] x23: 1fffe0001bcb5a0b x22: ffff0000de5ad058 x21: 00000000fffffff4 [ 83.429900][ T5267] x20: 0000000000000051 x19: ffff0000de5ad000 x18: 0000000000000001 [ 83.431289][ T5267] x17: 0000000000000000 x16: ffff80001125f020 x15: 00000000ffffffff [ 83.432631][ T5267] x14: 0000000000000001 x13: 1fffe000341f47ab x12: 0000000000ff0100 [ 83.433976][ T5267] x11: 0000000000000000 x10: 0000000000000000 x9 : eb29d5bbd74ef800 [ 83.435379][ T5267] x8 : eb29d5bbd74ef800 x7 : 0000000000000001 x6 : 0000000000000001 [ 83.436749][ T5267] x5 : ffff8000211d70d8 x4 : ffff80001437f3e0 x3 : ffff800008509220 [ 83.438070][ T5267] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 83.439441][ T5267] Call trace: [ 83.439984][ T5267] btrfs_run_delayed_refs+0x3e4/0x458 [ 83.440891][ T5267] btrfs_commit_transaction+0x1e0/0x3078 [ 83.441867][ T5267] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 83.442821][ T5267] btrfs_ioctl+0x50c/0xa8c [ 83.443561][ T5267] __arm64_sys_ioctl+0x14c/0x1c8 [ 83.444445][ T5267] invoke_syscall+0x98/0x2b0 [ 83.445303][ T5267] el0_svc_common+0x138/0x258 [ 83.446126][ T5267] do_el0_svc+0x58/0x13c [ 83.446842][ T5267] el0_svc+0x78/0x1d0 [ 83.447499][ T5267] el0t_64_sync_handler+0xcc/0xe4 [ 83.448337][ T5267] el0t_64_sync+0x1a0/0x1a4 [ 83.449105][ T5267] irq event stamp: 78690 [ 83.449832][ T5267] hardirqs last enabled at (78689): [] __up_console_sem+0xb4/0xfc [ 83.451320][ T5267] hardirqs last disabled at (78690): [] el1_dbg+0x24/0x80 [ 83.452771][ T5267] softirqs last enabled at (78658): [] handle_softirqs+0xa40/0xbe4 [ 83.454414][ T5267] softirqs last disabled at (78613): [] __irq_exit_rcu+0x240/0x43c [ 83.456044][ T5267] ---[ end trace 28ba6f7054f9b126 ]--- [ 83.457185][ T5267] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 83.458778][ T5267] BTRFS info (device loop0): forced readonly [ 83.599028][ T5289] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.30 (5289) [ 83.602922][ T5289] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 83.604717][ T5289] BTRFS info (device loop0): using free space tree [ 83.605789][ T5289] BTRFS info (device loop0): has skinny extents [ 83.615224][ T5289] BTRFS info (device loop0): enabling ssd optimizations [ 83.619308][ T5289] FAULT_INJECTION: forcing a failure. [ 83.619308][ T5289] name failslab, interval 1, probability 0, space 0, times 0 [ 83.621475][ T5289] CPU: 1 PID: 5289 Comm: syz.0.30 Tainted: G W syzkaller #0 [ 83.622899][ T5289] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 83.624588][ T5289] Call trace: [ 83.625081][ T5289] dump_backtrace+0x0/0x458 [ 83.625817][ T5289] show_stack+0x2c/0x3c [ 83.626481][ T5289] __dump_stack+0x30/0x40 [ 83.627142][ T5289] dump_stack_lvl+0xf4/0x15c [ 83.627863][ T5289] dump_stack+0x1c/0x5c [ 83.628539][ T5289] should_fail+0x3bc/0x514 [ 83.629275][ T5289] __should_failslab+0xbc/0x10c [ 83.630048][ T5289] should_failslab+0x10/0x28 [ 83.630809][ T5289] slab_pre_alloc_hook+0x64/0xe8 [ 83.631643][ T5289] kmem_cache_alloc+0x94/0x3d4 [ 83.632404][ T5289] btrfs_alloc_path+0x5c/0x68 [ 83.633171][ T5289] __btrfs_run_delayed_refs+0xe70/0x348c [ 83.634083][ T5289] btrfs_run_delayed_refs+0x124/0x458 [ 83.634978][ T5289] btrfs_commit_transaction+0x1e0/0x3078 [ 83.635915][ T5289] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 83.636799][ T5289] btrfs_ioctl+0x50c/0xa8c [ 83.637611][ T5289] __arm64_sys_ioctl+0x14c/0x1c8 [ 83.638447][ T5289] invoke_syscall+0x98/0x2b0 [ 83.639154][ T5289] el0_svc_common+0x138/0x258 [ 83.639986][ T5289] do_el0_svc+0x58/0x13c [ 83.640682][ T5289] el0_svc+0x78/0x1d0 [ 83.641303][ T5289] el0t_64_sync_handler+0xcc/0xe4 [ 83.642165][ T5289] el0t_64_sync+0x1a0/0x1a4 [ 83.643281][ T5289] BTRFS error (device loop0): failed to run delayed ref for logical 5242880 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 83.645307][ T5289] ------------[ cut here ]------------ [ 83.646299][ T5289] WARNING: CPU: 1 PID: 5289 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 83.648025][ T5289] Modules linked in: [ 83.648677][ T5289] CPU: 1 PID: 5289 Comm: syz.0.30 Tainted: G W syzkaller #0 [ 83.650133][ T5289] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 83.651878][ T5289] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 83.653184][ T5289] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 83.654180][ T5289] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 83.655158][ T5289] sp : ffff8000210c77d0 [ 83.655898][ T5289] x29: ffff8000210c77e0 x28: ffff0000e70b9000 x27: dfff800000000000 [ 83.657342][ T5289] x26: ffff0000e70b9024 x25: ffff0000ea59c000 x24: 1fffe0001bcb5b3f [ 83.658759][ T5289] x23: 1fffe0001bcb5b3f x22: ffff0000de5ad9f8 x21: 00000000fffffff4 [ 83.660158][ T5289] x20: 0000000000000051 x19: ffff0000de5ad9a0 x18: 0000000000000001 [ 83.661563][ T5289] x17: 0000000000000000 x16: ffff80001125f020 x15: 00000000ffffffff [ 83.662967][ T5289] x14: 0000000000000001 x13: 1fffe000341f47ab x12: 0000000000ff0100 [ 83.664371][ T5289] x11: 0000000000000000 x10: 0000000000000000 x9 : 2c4a03115a6aea00 [ 83.665680][ T5289] x8 : 2c4a03115a6aea00 x7 : 0000000000000001 x6 : 0000000000000001 [ 83.667039][ T5289] x5 : ffff8000210c70d8 x4 : ffff80001437f3e0 x3 : ffff800008509220 [ 83.668323][ T5289] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 83.669625][ T5289] Call trace: [ 83.670145][ T5289] btrfs_run_delayed_refs+0x3e4/0x458 [ 83.670934][ T5289] btrfs_commit_transaction+0x1e0/0x3078 [ 83.671846][ T5289] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 83.672845][ T5289] btrfs_ioctl+0x50c/0xa8c [ 83.673610][ T5289] __arm64_sys_ioctl+0x14c/0x1c8 [ 83.674454][ T5289] invoke_syscall+0x98/0x2b0 [ 83.675299][ T5289] el0_svc_common+0x138/0x258 [ 83.676107][ T5289] do_el0_svc+0x58/0x13c [ 83.676838][ T5289] el0_svc+0x78/0x1d0 [ 83.677571][ T5289] el0t_64_sync_handler+0xcc/0xe4 [ 83.678396][ T5289] el0t_64_sync+0x1a0/0x1a4 [ 83.679157][ T5289] irq event stamp: 79246 [ 83.679853][ T5289] hardirqs last enabled at (79245): [] __up_console_sem+0xb4/0xfc [ 83.681401][ T5289] hardirqs last disabled at (79246): [] el1_dbg+0x24/0x80 [ 83.682882][ T5289] softirqs last enabled at (79212): [] handle_softirqs+0xa40/0xbe4 [ 83.684489][ T5289] softirqs last disabled at (79137): [] __irq_exit_rcu+0x240/0x43c [ 83.685987][ T5289] ---[ end trace 28ba6f7054f9b127 ]--- [ 83.687247][ T5289] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 83.688831][ T5289] BTRFS info (device loop0): forced readonly [ 83.878373][ T5311] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.31 (5311) [ 83.920226][ T5311] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 83.921898][ T5311] BTRFS info (device loop0): using free space tree [ 83.923101][ T5311] BTRFS info (device loop0): has skinny extents [ 83.944719][ T5311] BTRFS info (device loop0): enabling ssd optimizations [ 83.949660][ T5311] FAULT_INJECTION: forcing a failure. [ 83.949660][ T5311] name failslab, interval 1, probability 0, space 0, times 0 [ 83.951777][ T5311] CPU: 1 PID: 5311 Comm: syz.0.31 Tainted: G W syzkaller #0 [ 83.953170][ T5311] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 83.954888][ T5311] Call trace: [ 83.955420][ T5311] dump_backtrace+0x0/0x458 [ 83.956174][ T5311] show_stack+0x2c/0x3c [ 83.956888][ T5311] __dump_stack+0x30/0x40 [ 83.957574][ T5311] dump_stack_lvl+0xf4/0x15c [ 83.958416][ T5311] dump_stack+0x1c/0x5c [ 83.959108][ T5311] should_fail+0x3bc/0x514 [ 83.959827][ T5311] __should_failslab+0xbc/0x10c [ 83.960638][ T5311] should_failslab+0x10/0x28 [ 83.961388][ T5311] slab_pre_alloc_hook+0x64/0xe8 [ 83.962247][ T5311] kmem_cache_alloc+0x94/0x3d4 [ 83.963057][ T5311] btrfs_alloc_path+0x5c/0x68 [ 83.963810][ T5311] __btrfs_run_delayed_refs+0xe70/0x348c [ 83.964812][ T5311] btrfs_run_delayed_refs+0x124/0x458 [ 83.965743][ T5311] btrfs_commit_transaction+0x1e0/0x3078 [ 83.966724][ T5311] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 83.967660][ T5311] btrfs_ioctl+0x50c/0xa8c [ 83.968395][ T5311] __arm64_sys_ioctl+0x14c/0x1c8 [ 83.969296][ T5311] invoke_syscall+0x98/0x2b0 [ 83.970106][ T5311] el0_svc_common+0x138/0x258 [ 83.970851][ T5311] do_el0_svc+0x58/0x13c [ 83.971540][ T5311] el0_svc+0x78/0x1d0 [ 83.972225][ T5311] el0t_64_sync_handler+0xcc/0xe4 [ 83.973077][ T5311] el0t_64_sync+0x1a0/0x1a4 [ 83.975911][ T5311] BTRFS error (device loop0): failed to run delayed ref for logical 5242880 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 83.978130][ T5311] ------------[ cut here ]------------ [ 83.979080][ T5311] WARNING: CPU: 1 PID: 5311 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 83.980690][ T5311] Modules linked in: [ 83.981312][ T5311] CPU: 1 PID: 5311 Comm: syz.0.31 Tainted: G W syzkaller #0 [ 83.982566][ T5311] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 83.984088][ T5311] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 83.985293][ T5311] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 83.986220][ T5311] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 83.987171][ T5311] sp : ffff8000212c77d0 [ 83.987875][ T5311] x29: ffff8000212c77e0 x28: ffff0000e70be000 x27: dfff800000000000 [ 83.989195][ T5311] x26: ffff0000e70be024 x25: ffff0000ea428000 x24: 1fffe0001bcb5b6b [ 83.990653][ T5311] x23: 1fffe0001bcb5b6b x22: ffff0000de5adb58 x21: 00000000fffffff4 [ 83.992029][ T5311] x20: 0000000000000051 x19: ffff0000de5adb00 x18: 0000000000000001 [ 83.993335][ T5311] x17: 0000000000000000 x16: ffff80001125f020 x15: 00000000ffffffff [ 83.994689][ T5311] x14: 0000000000000001 x13: 1fffe000341f47ab x12: 0000000000ff0100 [ 83.996017][ T5311] x11: 0000000000000000 x10: 0000000000000000 x9 : ef54df840ed8aa00 [ 83.997295][ T5311] x8 : ef54df840ed8aa00 x7 : 0000000000000001 x6 : 0000000000000001 [ 83.998596][ T5311] x5 : ffff8000212c70d8 x4 : ffff80001437f3e0 x3 : ffff800008509220 [ 83.999970][ T5311] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 84.001253][ T5311] Call trace: [ 84.001762][ T5311] btrfs_run_delayed_refs+0x3e4/0x458 [ 84.002660][ T5311] btrfs_commit_transaction+0x1e0/0x3078 [ 84.003603][ T5311] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 84.004603][ T5311] btrfs_ioctl+0x50c/0xa8c [ 84.005324][ T5311] __arm64_sys_ioctl+0x14c/0x1c8 [ 84.006158][ T5311] invoke_syscall+0x98/0x2b0 [ 84.006889][ T5311] el0_svc_common+0x138/0x258 [ 84.007648][ T5311] do_el0_svc+0x58/0x13c [ 84.008316][ T5311] el0_svc+0x78/0x1d0 [ 84.008999][ T5311] el0t_64_sync_handler+0xcc/0xe4 [ 84.009851][ T5311] el0t_64_sync+0x1a0/0x1a4 [ 84.010592][ T5311] irq event stamp: 78782 [ 84.011303][ T5311] hardirqs last enabled at (78781): [] __up_console_sem+0xb4/0xfc [ 84.012942][ T5311] hardirqs last disabled at (78782): [] el1_dbg+0x24/0x80 [ 84.014297][ T5311] softirqs last enabled at (78760): [] handle_softirqs+0xa40/0xbe4 [ 84.015799][ T5311] softirqs last disabled at (78713): [] __irq_exit_rcu+0x240/0x43c [ 84.017402][ T5311] ---[ end trace 28ba6f7054f9b128 ]--- [ 84.021641][ T5311] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 84.023268][ T5311] BTRFS info (device loop0): forced readonly 1970/01/01 00:01:24 executed programs: 19 [ 84.196788][ T5333] set_capacity_and_notify: 7 callbacks suppressed [ 84.196798][ T5333] loop0: detected capacity change from 0 to 32768 [ 84.249051][ T5333] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.32 (5333) [ 84.251904][ T5333] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 84.254016][ T5333] BTRFS info (device loop0): using free space tree [ 84.255157][ T5333] BTRFS info (device loop0): has skinny extents [ 84.263401][ T5333] BTRFS info (device loop0): enabling ssd optimizations [ 84.268135][ T5333] FAULT_INJECTION: forcing a failure. [ 84.268135][ T5333] name failslab, interval 1, probability 0, space 0, times 0 [ 84.270244][ T5333] CPU: 1 PID: 5333 Comm: syz.0.32 Tainted: G W syzkaller #0 [ 84.271584][ T5333] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 84.273174][ T5333] Call trace: [ 84.273702][ T5333] dump_backtrace+0x0/0x458 [ 84.274465][ T5333] show_stack+0x2c/0x3c [ 84.275146][ T5333] __dump_stack+0x30/0x40 [ 84.275894][ T5333] dump_stack_lvl+0xf4/0x15c [ 84.276624][ T5333] dump_stack+0x1c/0x5c [ 84.277304][ T5333] should_fail+0x3bc/0x514 [ 84.278060][ T5333] __should_failslab+0xbc/0x10c [ 84.278885][ T5333] should_failslab+0x10/0x28 [ 84.279616][ T5333] slab_pre_alloc_hook+0x64/0xe8 [ 84.280495][ T5333] kmem_cache_alloc+0x94/0x3d4 [ 84.281249][ T5333] btrfs_alloc_path+0x5c/0x68 [ 84.281980][ T5333] __btrfs_free_extent+0x1a8/0x1abc [ 84.282845][ T5333] __btrfs_run_delayed_refs+0xbf0/0x348c [ 84.283718][ T5333] btrfs_run_delayed_refs+0x124/0x458 [ 84.284614][ T5333] btrfs_commit_transaction+0x1e0/0x3078 [ 84.285496][ T5333] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 84.286362][ T5333] btrfs_ioctl+0x50c/0xa8c [ 84.287101][ T5333] __arm64_sys_ioctl+0x14c/0x1c8 [ 84.287939][ T5333] invoke_syscall+0x98/0x2b0 [ 84.288703][ T5333] el0_svc_common+0x138/0x258 [ 84.289470][ T5333] do_el0_svc+0x58/0x13c [ 84.290151][ T5333] el0_svc+0x78/0x1d0 [ 84.290773][ T5333] el0t_64_sync_handler+0xcc/0xe4 [ 84.291635][ T5333] el0t_64_sync+0x1a0/0x1a4 [ 84.294123][ T5333] BTRFS error (device loop0): failed to run delayed ref for logical 5255168 num_bytes 4096 type 176 action 2 ref_mod 1: -12 [ 84.296147][ T5333] ------------[ cut here ]------------ [ 84.297129][ T5333] WARNING: CPU: 1 PID: 5333 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 84.298832][ T5333] Modules linked in: [ 84.299474][ T5333] CPU: 1 PID: 5333 Comm: syz.0.32 Tainted: G W syzkaller #0 [ 84.300927][ T5333] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 84.302603][ T5333] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 84.303912][ T5333] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 84.304851][ T5333] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 84.305805][ T5333] sp : ffff8000215077d0 [ 84.306487][ T5333] x29: ffff8000215077e0 x28: ffff0000e70bb000 x27: dfff800000000000 [ 84.307821][ T5333] x26: ffff0000e70bb024 x25: ffff0000c20f8000 x24: 1fffe0001bcb5b97 [ 84.309183][ T5333] x23: 1fffe0001bcb5b97 x22: ffff0000de5adcb8 x21: 00000000fffffff4 [ 84.310496][ T5333] x20: 0000000000000051 x19: ffff0000de5adc60 x18: 0000000000000001 [ 84.311850][ T5333] x17: 0000000000000000 x16: ffff80001125f020 x15: 00000000ffffffff [ 84.313157][ T5333] x14: 0000000000000001 x13: 1fffe000341f47ab x12: 0000000000ff0100 [ 84.314615][ T5333] x11: 0000000000000000 x10: 0000000000000000 x9 : fb2d5347ab37e600 [ 84.315907][ T5333] x8 : fb2d5347ab37e600 x7 : 0000000000000001 x6 : 0000000000000001 [ 84.317251][ T5333] x5 : ffff8000215070d8 x4 : ffff80001437f3e0 x3 : ffff800008509220 [ 84.318527][ T5333] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 84.319833][ T5333] Call trace: [ 84.320378][ T5333] btrfs_run_delayed_refs+0x3e4/0x458 [ 84.321256][ T5333] btrfs_commit_transaction+0x1e0/0x3078 [ 84.322157][ T5333] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 84.323028][ T5333] btrfs_ioctl+0x50c/0xa8c [ 84.323761][ T5333] __arm64_sys_ioctl+0x14c/0x1c8 [ 84.324701][ T5333] invoke_syscall+0x98/0x2b0 [ 84.325458][ T5333] el0_svc_common+0x138/0x258 [ 84.326245][ T5333] do_el0_svc+0x58/0x13c [ 84.326971][ T5333] el0_svc+0x78/0x1d0 [ 84.327620][ T5333] el0t_64_sync_handler+0xcc/0xe4 [ 84.328463][ T5333] el0t_64_sync+0x1a0/0x1a4 [ 84.329168][ T5333] irq event stamp: 79058 [ 84.329849][ T5333] hardirqs last enabled at (79057): [] __up_console_sem+0xb4/0xfc [ 84.331442][ T5333] hardirqs last disabled at (79058): [] el1_dbg+0x24/0x80 [ 84.332850][ T5333] softirqs last enabled at (79026): [] handle_softirqs+0xa40/0xbe4 [ 84.334415][ T5333] softirqs last disabled at (78973): [] __irq_exit_rcu+0x240/0x43c [ 84.335960][ T5333] ---[ end trace 28ba6f7054f9b129 ]--- [ 84.340124][ T5333] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 84.341703][ T5333] BTRFS info (device loop0): forced readonly [ 84.475550][ T5355] loop0: detected capacity change from 0 to 32768 [ 84.483108][ T5355] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.33 (5355) [ 84.487976][ T5355] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 84.489145][ T5355] BTRFS info (device loop0): using free space tree [ 84.490156][ T5355] BTRFS info (device loop0): has skinny extents [ 84.502363][ T5355] BTRFS info (device loop0): enabling ssd optimizations [ 84.505568][ T5355] FAULT_INJECTION: forcing a failure. [ 84.505568][ T5355] name failslab, interval 1, probability 0, space 0, times 0 [ 84.507931][ T5355] CPU: 0 PID: 5355 Comm: syz.0.33 Tainted: G W syzkaller #0 [ 84.509267][ T5355] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 84.510961][ T5355] Call trace: [ 84.511482][ T5355] dump_backtrace+0x0/0x458 [ 84.512244][ T5355] show_stack+0x2c/0x3c [ 84.512918][ T5355] __dump_stack+0x30/0x40 [ 84.513605][ T5355] dump_stack_lvl+0xf4/0x15c [ 84.514298][ T5355] dump_stack+0x1c/0x5c [ 84.514959][ T5355] should_fail+0x3bc/0x514 [ 84.515741][ T5355] __should_failslab+0xbc/0x10c [ 84.516594][ T5355] should_failslab+0x10/0x28 [ 84.517363][ T5355] slab_pre_alloc_hook+0x64/0xe8 [ 84.518149][ T5355] kmem_cache_alloc+0x94/0x3d4 [ 84.518959][ T5355] btrfs_alloc_path+0x5c/0x68 [ 84.519766][ T5355] __btrfs_run_delayed_refs+0xe70/0x348c [ 84.520700][ T5355] btrfs_run_delayed_refs+0x124/0x458 [ 84.521619][ T5355] btrfs_commit_transaction+0x1e0/0x3078 [ 84.522547][ T5355] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 84.523463][ T5355] btrfs_ioctl+0x50c/0xa8c [ 84.524259][ T5355] __arm64_sys_ioctl+0x14c/0x1c8 [ 84.525164][ T5355] invoke_syscall+0x98/0x2b0 [ 84.525955][ T5355] el0_svc_common+0x138/0x258 [ 84.526724][ T5355] do_el0_svc+0x58/0x13c [ 84.527470][ T5355] el0_svc+0x78/0x1d0 [ 84.528202][ T5355] el0t_64_sync_handler+0xcc/0xe4 [ 84.529091][ T5355] el0t_64_sync+0x1a0/0x1a4 [ 84.530711][ T5355] BTRFS error (device loop0): failed to run delayed ref for logical 5242880 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 84.532821][ T5355] ------------[ cut here ]------------ [ 84.533845][ T5355] WARNING: CPU: 0 PID: 5355 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 84.535404][ T5355] Modules linked in: [ 84.536067][ T5355] CPU: 0 PID: 5355 Comm: syz.0.33 Tainted: G W syzkaller #0 [ 84.537499][ T5355] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 84.539229][ T5355] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 84.540564][ T5355] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 84.541508][ T5355] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 84.542544][ T5355] sp : ffff8000216077d0 [ 84.543244][ T5355] x29: ffff8000216077e0 x28: ffff0000cffe8000 x27: dfff800000000000 [ 84.544582][ T5355] x26: ffff0000cffe8024 x25: ffff0000ec024000 x24: 1fffe0001bcf9c79 [ 84.545953][ T5355] x23: 1fffe0001bcf9c79 x22: ffff0000de7ce3c8 x21: 00000000fffffff4 [ 84.547341][ T5355] x20: 0000000000000051 x19: ffff0000de7ce370 x18: 0000000000000001 [ 84.548716][ T5355] x17: 0000000000000000 x16: ffff80001125f020 x15: 00000000ffffffff [ 84.550046][ T5355] x14: 0000000000000001 x13: 1fffe000341f05ab x12: 0000000000ff0100 [ 84.551414][ T5355] x11: 0000000000000000 x10: 0000000000000000 x9 : 0738231267017000 [ 84.552886][ T5355] x8 : 0738231267017000 x7 : 0000000000000001 x6 : 0000000000000001 [ 84.554337][ T5355] x5 : ffff8000216070d8 x4 : ffff80001437f3e0 x3 : ffff800008509220 [ 84.555722][ T5355] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 84.557085][ T5355] Call trace: [ 84.557608][ T5355] btrfs_run_delayed_refs+0x3e4/0x458 [ 84.558506][ T5355] btrfs_commit_transaction+0x1e0/0x3078 [ 84.559403][ T5355] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 84.560357][ T5355] btrfs_ioctl+0x50c/0xa8c [ 84.561087][ T5355] __arm64_sys_ioctl+0x14c/0x1c8 [ 84.561916][ T5355] invoke_syscall+0x98/0x2b0 [ 84.562713][ T5355] el0_svc_common+0x138/0x258 [ 84.563570][ T5355] do_el0_svc+0x58/0x13c [ 84.564232][ T5355] el0_svc+0x78/0x1d0 [ 84.564825][ T5355] el0t_64_sync_handler+0xcc/0xe4 [ 84.565679][ T5355] el0t_64_sync+0x1a0/0x1a4 [ 84.566403][ T5355] irq event stamp: 79094 [ 84.567092][ T5355] hardirqs last enabled at (79093): [] __up_console_sem+0xb4/0xfc [ 84.568752][ T5355] hardirqs last disabled at (79094): [] el1_dbg+0x24/0x80 [ 84.570215][ T5355] softirqs last enabled at (79060): [] handle_softirqs+0xa40/0xbe4 [ 84.571809][ T5355] softirqs last disabled at (78991): [] __irq_exit_rcu+0x240/0x43c [ 84.573358][ T5355] ---[ end trace 28ba6f7054f9b12a ]--- [ 84.574936][ T5355] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 84.576533][ T5355] BTRFS info (device loop0): forced readonly [ 84.720320][ T5377] loop0: detected capacity change from 0 to 32768 [ 84.728368][ T5377] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.34 (5377) [ 84.731568][ T5377] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 84.732971][ T5377] BTRFS info (device loop0): using free space tree [ 84.733988][ T5377] BTRFS info (device loop0): has skinny extents [ 84.744323][ T5377] BTRFS info (device loop0): enabling ssd optimizations [ 84.748223][ T5377] FAULT_INJECTION: forcing a failure. [ 84.748223][ T5377] name failslab, interval 1, probability 0, space 0, times 0 [ 84.750430][ T5377] CPU: 1 PID: 5377 Comm: syz.0.34 Tainted: G W syzkaller #0 [ 84.751959][ T5377] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 84.753668][ T5377] Call trace: [ 84.754213][ T5377] dump_backtrace+0x0/0x458 [ 84.754974][ T5377] show_stack+0x2c/0x3c [ 84.755664][ T5377] __dump_stack+0x30/0x40 [ 84.756406][ T5377] dump_stack_lvl+0xf4/0x15c [ 84.757171][ T5377] dump_stack+0x1c/0x5c [ 84.757882][ T5377] should_fail+0x3bc/0x514 [ 84.758611][ T5377] __should_failslab+0xbc/0x10c [ 84.759389][ T5377] should_failslab+0x10/0x28 [ 84.760140][ T5377] slab_pre_alloc_hook+0x64/0xe8 [ 84.760991][ T5377] kmem_cache_alloc+0x94/0x3d4 [ 84.761827][ T5377] btrfs_alloc_path+0x5c/0x68 [ 84.762631][ T5377] __btrfs_run_delayed_refs+0xe70/0x348c [ 84.763575][ T5377] btrfs_run_delayed_refs+0x124/0x458 [ 84.764498][ T5377] btrfs_commit_transaction+0x1e0/0x3078 [ 84.765495][ T5377] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 84.766368][ T5377] btrfs_ioctl+0x50c/0xa8c [ 84.767133][ T5377] __arm64_sys_ioctl+0x14c/0x1c8 [ 84.768021][ T5377] invoke_syscall+0x98/0x2b0 [ 84.768831][ T5377] el0_svc_common+0x138/0x258 [ 84.769607][ T5377] do_el0_svc+0x58/0x13c [ 84.770319][ T5377] el0_svc+0x78/0x1d0 [ 84.770969][ T5377] el0t_64_sync_handler+0xcc/0xe4 [ 84.771764][ T5377] el0t_64_sync+0x1a0/0x1a4 [ 84.774053][ T5377] BTRFS error (device loop0): failed to run delayed ref for logical 5242880 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 84.776132][ T5377] ------------[ cut here ]------------ [ 84.777171][ T5377] WARNING: CPU: 1 PID: 5377 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 84.778748][ T5377] Modules linked in: [ 84.779353][ T5377] CPU: 1 PID: 5377 Comm: syz.0.34 Tainted: G W syzkaller #0 [ 84.780757][ T5377] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 84.782382][ T5377] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 84.783601][ T5377] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 84.784561][ T5377] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 84.785462][ T5377] sp : ffff8000216077d0 [ 84.786147][ T5377] x29: ffff8000216077e0 x28: ffff0000e70bf000 x27: dfff800000000000 [ 84.787486][ T5377] x26: ffff0000e70bf024 x25: ffff0000ea490000 x24: 1fffe0001bcb5a63 [ 84.788860][ T5377] x23: 1fffe0001bcb5a63 x22: ffff0000de5ad318 x21: 00000000fffffff4 [ 84.790160][ T5377] x20: 0000000000000051 x19: ffff0000de5ad2c0 x18: 0000000000000001 [ 84.791574][ T5377] x17: 0000000000000000 x16: ffff80001125f020 x15: 00000000ffffffff [ 84.792963][ T5377] x14: 0000000000000001 x13: 1fffe000341f47ab x12: 0000000000ff0100 [ 84.794358][ T5377] x11: 0000000000000000 x10: 0000000000000000 x9 : e5f268a7cb6b3500 [ 84.795702][ T5377] x8 : e5f268a7cb6b3500 x7 : 0000000000000001 x6 : 0000000000000001 [ 84.797080][ T5377] x5 : ffff8000216070d8 x4 : ffff80001437f3e0 x3 : ffff800008509220 [ 84.798374][ T5377] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 84.799681][ T5377] Call trace: [ 84.800279][ T5377] btrfs_run_delayed_refs+0x3e4/0x458 [ 84.801152][ T5377] btrfs_commit_transaction+0x1e0/0x3078 [ 84.802106][ T5377] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 84.803019][ T5377] btrfs_ioctl+0x50c/0xa8c [ 84.803749][ T5377] __arm64_sys_ioctl+0x14c/0x1c8 [ 84.804541][ T5377] invoke_syscall+0x98/0x2b0 [ 84.805260][ T5377] el0_svc_common+0x138/0x258 [ 84.806069][ T5377] do_el0_svc+0x58/0x13c [ 84.806770][ T5377] el0_svc+0x78/0x1d0 [ 84.807445][ T5377] el0t_64_sync_handler+0xcc/0xe4 [ 84.808297][ T5377] el0t_64_sync+0x1a0/0x1a4 [ 84.809069][ T5377] irq event stamp: 78644 [ 84.809782][ T5377] hardirqs last enabled at (78643): [] __up_console_sem+0xb4/0xfc [ 84.811377][ T5377] hardirqs last disabled at (78644): [] el1_dbg+0x24/0x80 [ 84.812836][ T5377] softirqs last enabled at (78610): [] handle_softirqs+0xa40/0xbe4 [ 84.814454][ T5377] softirqs last disabled at (78579): [] __irq_exit_rcu+0x240/0x43c [ 84.816041][ T5377] ---[ end trace 28ba6f7054f9b12b ]--- [ 84.817262][ T5377] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 84.819403][ T5377] BTRFS info (device loop0): forced readonly [ 84.951946][ T5399] loop0: detected capacity change from 0 to 32768 [ 84.988321][ T5399] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.35 (5399) [ 85.029507][ T5399] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 85.031242][ T5399] BTRFS info (device loop0): using free space tree [ 85.032305][ T5399] BTRFS info (device loop0): has skinny extents [ 85.040660][ T5399] BTRFS info (device loop0): enabling ssd optimizations [ 85.044039][ T5399] FAULT_INJECTION: forcing a failure. [ 85.044039][ T5399] name failslab, interval 1, probability 0, space 0, times 0 [ 85.046008][ T5399] CPU: 0 PID: 5399 Comm: syz.0.35 Tainted: G W syzkaller #0 [ 85.047450][ T5399] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 85.049228][ T5399] Call trace: [ 85.049773][ T5399] dump_backtrace+0x0/0x458 [ 85.050521][ T5399] show_stack+0x2c/0x3c [ 85.051217][ T5399] __dump_stack+0x30/0x40 [ 85.051947][ T5399] dump_stack_lvl+0xf4/0x15c [ 85.052733][ T5399] dump_stack+0x1c/0x5c [ 85.053450][ T5399] should_fail+0x3bc/0x514 [ 85.054170][ T5399] __should_failslab+0xbc/0x10c [ 85.054977][ T5399] should_failslab+0x10/0x28 [ 85.055788][ T5399] slab_pre_alloc_hook+0x64/0xe8 [ 85.056646][ T5399] kmem_cache_alloc+0x94/0x3d4 [ 85.057434][ T5399] btrfs_alloc_path+0x5c/0x68 [ 85.058268][ T5399] __btrfs_run_delayed_refs+0xe70/0x348c [ 85.059226][ T5399] btrfs_run_delayed_refs+0x124/0x458 [ 85.060167][ T5399] btrfs_commit_transaction+0x1e0/0x3078 [ 85.061103][ T5399] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 85.062074][ T5399] btrfs_ioctl+0x50c/0xa8c [ 85.062814][ T5399] __arm64_sys_ioctl+0x14c/0x1c8 [ 85.063657][ T5399] invoke_syscall+0x98/0x2b0 [ 85.064423][ T5399] el0_svc_common+0x138/0x258 [ 85.065184][ T5399] do_el0_svc+0x58/0x13c [ 85.065905][ T5399] el0_svc+0x78/0x1d0 [ 85.066546][ T5399] el0t_64_sync_handler+0xcc/0xe4 [ 85.067372][ T5399] el0t_64_sync+0x1a0/0x1a4 [ 85.069995][ T5399] BTRFS error (device loop0): failed to run delayed ref for logical 5242880 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 85.072202][ T5399] ------------[ cut here ]------------ [ 85.073226][ T5399] WARNING: CPU: 0 PID: 5399 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 85.074868][ T5399] Modules linked in: [ 85.075480][ T5399] CPU: 0 PID: 5399 Comm: syz.0.35 Tainted: G W syzkaller #0 [ 85.076819][ T5399] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 85.078634][ T5399] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 85.079975][ T5399] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 85.080927][ T5399] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 85.081904][ T5399] sp : ffff8000218377d0 [ 85.082634][ T5399] x29: ffff8000218377e0 x28: ffff0000db94c000 x27: dfff800000000000 [ 85.084034][ T5399] x26: ffff0000db94c024 x25: ffff0000d65c8000 x24: 1fffe0001bcf9c4d [ 85.085339][ T5399] x23: 1fffe0001bcf9c4d x22: ffff0000de7ce268 x21: 00000000fffffff4 [ 85.086727][ T5399] x20: 0000000000000051 x19: ffff0000de7ce210 x18: 0000000000000001 [ 85.088073][ T5399] x17: 0000000000000000 x16: ffff80001125f020 x15: 00000000ffffffff [ 85.089448][ T5399] x14: 0000000000000001 x13: 1fffe000341f05ab x12: 0000000000ff0100 [ 85.090802][ T5399] x11: 0000000000000000 x10: 0000000000000000 x9 : c3d00b92b0cef200 [ 85.092162][ T5399] x8 : c3d00b92b0cef200 x7 : 0000000000000001 x6 : 0000000000000001 [ 85.093454][ T5399] x5 : ffff8000218370d8 x4 : ffff80001437f3e0 x3 : ffff800008509220 [ 85.094712][ T5399] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 85.096052][ T5399] Call trace: [ 85.096552][ T5399] btrfs_run_delayed_refs+0x3e4/0x458 [ 85.097404][ T5399] btrfs_commit_transaction+0x1e0/0x3078 [ 85.098245][ T5399] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 85.099069][ T5399] btrfs_ioctl+0x50c/0xa8c [ 85.099831][ T5399] __arm64_sys_ioctl+0x14c/0x1c8 [ 85.100644][ T5399] invoke_syscall+0x98/0x2b0 [ 85.101428][ T5399] el0_svc_common+0x138/0x258 [ 85.102225][ T5399] do_el0_svc+0x58/0x13c [ 85.102922][ T5399] el0_svc+0x78/0x1d0 [ 85.103544][ T5399] el0t_64_sync_handler+0xcc/0xe4 [ 85.104358][ T5399] el0t_64_sync+0x1a0/0x1a4 [ 85.105104][ T5399] irq event stamp: 79298 [ 85.105810][ T5399] hardirqs last enabled at (79297): [] __up_console_sem+0xb4/0xfc [ 85.107441][ T5399] hardirqs last disabled at (79298): [] el1_dbg+0x24/0x80 [ 85.108979][ T5399] softirqs last enabled at (79264): [] handle_softirqs+0xa40/0xbe4 [ 85.110442][ T5399] softirqs last disabled at (79161): [] __irq_exit_rcu+0x240/0x43c [ 85.111853][ T5399] ---[ end trace 28ba6f7054f9b12c ]--- [ 85.113447][ T5399] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 85.114987][ T5399] BTRFS info (device loop0): forced readonly [ 85.297274][ T5421] loop0: detected capacity change from 0 to 32768 [ 85.341991][ T5421] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.36 (5421) [ 85.345341][ T5421] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 85.346761][ T5421] BTRFS info (device loop0): using free space tree [ 85.349643][ T5421] BTRFS info (device loop0): has skinny extents [ 85.356716][ T5421] BTRFS info (device loop0): enabling ssd optimizations [ 85.360963][ T5421] FAULT_INJECTION: forcing a failure. [ 85.360963][ T5421] name failslab, interval 1, probability 0, space 0, times 0 [ 85.362927][ T5421] CPU: 0 PID: 5421 Comm: syz.0.36 Tainted: G W syzkaller #0 [ 85.364288][ T5421] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 85.366048][ T5421] Call trace: [ 85.366573][ T5421] dump_backtrace+0x0/0x458 [ 85.367316][ T5421] show_stack+0x2c/0x3c [ 85.368005][ T5421] __dump_stack+0x30/0x40 [ 85.368735][ T5421] dump_stack_lvl+0xf4/0x15c [ 85.369499][ T5421] dump_stack+0x1c/0x5c [ 85.370197][ T5421] should_fail+0x3bc/0x514 [ 85.370911][ T5421] __should_failslab+0xbc/0x10c [ 85.371715][ T5421] should_failslab+0x10/0x28 [ 85.372513][ T5421] slab_pre_alloc_hook+0x64/0xe8 [ 85.373302][ T5421] kmem_cache_alloc+0x94/0x3d4 [ 85.374085][ T5421] btrfs_alloc_path+0x5c/0x68 [ 85.374840][ T5421] __btrfs_run_delayed_refs+0xe70/0x348c [ 85.375762][ T5421] btrfs_run_delayed_refs+0x124/0x458 [ 85.376665][ T5421] btrfs_commit_transaction+0x1e0/0x3078 [ 85.377618][ T5421] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 85.378541][ T5421] btrfs_ioctl+0x50c/0xa8c [ 85.379268][ T5421] __arm64_sys_ioctl+0x14c/0x1c8 [ 85.380120][ T5421] invoke_syscall+0x98/0x2b0 [ 85.380896][ T5421] el0_svc_common+0x138/0x258 [ 85.381681][ T5421] do_el0_svc+0x58/0x13c [ 85.382456][ T5421] el0_svc+0x78/0x1d0 [ 85.383081][ T5421] el0t_64_sync_handler+0xcc/0xe4 [ 85.383911][ T5421] el0t_64_sync+0x1a0/0x1a4 [ 85.386512][ T5421] BTRFS error (device loop0): failed to run delayed ref for logical 5242880 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 85.388910][ T5421] ------------[ cut here ]------------ [ 85.389867][ T5421] WARNING: CPU: 0 PID: 5421 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 85.391446][ T5421] Modules linked in: [ 85.392028][ T5421] CPU: 0 PID: 5421 Comm: syz.0.36 Tainted: G W syzkaller #0 [ 85.393235][ T5421] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 85.394811][ T5421] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 85.396017][ T5421] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 85.396882][ T5421] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 85.397753][ T5421] sp : ffff8000219577d0 [ 85.398412][ T5421] x29: ffff8000219577e0 x28: ffff0000db948000 x27: dfff800000000000 [ 85.399680][ T5421] x26: ffff0000db948024 x25: ffff0000d1bb4000 x24: 1fffe0001bcf9c0b [ 85.400924][ T5421] x23: 1fffe0001bcf9c0b x22: ffff0000de7ce058 x21: 00000000fffffff4 [ 85.402168][ T5421] x20: 0000000000000051 x19: ffff0000de7ce000 x18: 0000000000000001 [ 85.403585][ T5421] x17: 0000000000000000 x16: ffff80001125f020 x15: 00000000ffffffff [ 85.404901][ T5421] x14: 0000000000000001 x13: 1fffe000341f05ab x12: 0000000000ff0100 [ 85.406227][ T5421] x11: 0000000000000000 x10: 0000000000000000 x9 : 0be728f0d3bcc700 [ 85.407519][ T5421] x8 : 0be728f0d3bcc700 x7 : 0000000000000001 x6 : 0000000000000001 [ 85.408809][ T5421] x5 : ffff8000219570d8 x4 : ffff80001437f3e0 x3 : ffff800008509220 [ 85.410092][ T5421] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 85.411437][ T5421] Call trace: [ 85.411981][ T5421] btrfs_run_delayed_refs+0x3e4/0x458 [ 85.412877][ T5421] btrfs_commit_transaction+0x1e0/0x3078 [ 85.413832][ T5421] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 85.414749][ T5421] btrfs_ioctl+0x50c/0xa8c [ 85.415491][ T5421] __arm64_sys_ioctl+0x14c/0x1c8 [ 85.416324][ T5421] invoke_syscall+0x98/0x2b0 [ 85.417109][ T5421] el0_svc_common+0x138/0x258 [ 85.417901][ T5421] do_el0_svc+0x58/0x13c [ 85.418623][ T5421] el0_svc+0x78/0x1d0 [ 85.419303][ T5421] el0t_64_sync_handler+0xcc/0xe4 [ 85.420101][ T5421] el0t_64_sync+0x1a0/0x1a4 [ 85.420805][ T5421] irq event stamp: 78766 [ 85.421493][ T5421] hardirqs last enabled at (78765): [] __up_console_sem+0xb4/0xfc [ 85.423087][ T5421] hardirqs last disabled at (78766): [] el1_dbg+0x24/0x80 [ 85.424587][ T5421] softirqs last enabled at (78742): [] handle_softirqs+0xa40/0xbe4 [ 85.426163][ T5421] softirqs last disabled at (78711): [] __irq_exit_rcu+0x240/0x43c [ 85.427775][ T5421] ---[ end trace 28ba6f7054f9b12d ]--- [ 85.429352][ T5421] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 85.430879][ T5421] BTRFS info (device loop0): forced readonly [ 85.599966][ T5443] loop0: detected capacity change from 0 to 32768 [ 85.651292][ T5443] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.37 (5443) [ 85.655621][ T5443] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 85.657078][ T5443] BTRFS info (device loop0): using free space tree [ 85.660102][ T5443] BTRFS info (device loop0): has skinny extents [ 85.671624][ T5443] BTRFS info (device loop0): enabling ssd optimizations [ 85.674790][ T5443] FAULT_INJECTION: forcing a failure. [ 85.674790][ T5443] name failslab, interval 1, probability 0, space 0, times 0 [ 85.676900][ T5443] CPU: 0 PID: 5443 Comm: syz.0.37 Tainted: G W syzkaller #0 [ 85.678323][ T5443] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 85.680039][ T5443] Call trace: [ 85.680565][ T5443] dump_backtrace+0x0/0x458 [ 85.681366][ T5443] show_stack+0x2c/0x3c [ 85.682046][ T5443] __dump_stack+0x30/0x40 [ 85.682737][ T5443] dump_stack_lvl+0xf4/0x15c [ 85.683457][ T5443] dump_stack+0x1c/0x5c [ 85.684095][ T5443] should_fail+0x3bc/0x514 [ 85.684766][ T5443] __should_failslab+0xbc/0x10c [ 85.685522][ T5443] should_failslab+0x10/0x28 [ 85.686231][ T5443] slab_pre_alloc_hook+0x64/0xe8 [ 85.687031][ T5443] kmem_cache_alloc+0x94/0x3d4 [ 85.687792][ T5443] btrfs_alloc_path+0x5c/0x68 [ 85.688558][ T5443] __btrfs_free_extent+0x1a8/0x1abc [ 85.689416][ T5443] __btrfs_run_delayed_refs+0xbf0/0x348c [ 85.690354][ T5443] btrfs_run_delayed_refs+0x124/0x458 [ 85.691295][ T5443] btrfs_commit_transaction+0x1e0/0x3078 [ 85.692285][ T5443] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 85.693211][ T5443] btrfs_ioctl+0x50c/0xa8c [ 85.693935][ T5443] __arm64_sys_ioctl+0x14c/0x1c8 [ 85.694789][ T5443] invoke_syscall+0x98/0x2b0 [ 85.695625][ T5443] el0_svc_common+0x138/0x258 [ 85.696405][ T5443] do_el0_svc+0x58/0x13c [ 85.697747][ T5443] el0_svc+0x78/0x1d0 [ 85.698399][ T5443] el0t_64_sync_handler+0xcc/0xe4 [ 85.699281][ T5443] el0t_64_sync+0x1a0/0x1a4 [ 85.700996][ T5443] BTRFS error (device loop0): failed to run delayed ref for logical 5255168 num_bytes 4096 type 176 action 2 ref_mod 1: -12 [ 85.703081][ T5443] ------------[ cut here ]------------ [ 85.704089][ T5443] WARNING: CPU: 0 PID: 5443 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 85.705820][ T5443] Modules linked in: [ 85.706481][ T5443] CPU: 0 PID: 5443 Comm: syz.0.37 Tainted: G W syzkaller #0 [ 85.707994][ T5443] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 85.709704][ T5443] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 85.711055][ T5443] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 85.712013][ T5443] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 85.712973][ T5443] sp : ffff800021a577d0 [ 85.713644][ T5443] x29: ffff800021a577e0 x28: ffff0000c8c97000 x27: dfff800000000000 [ 85.714909][ T5443] x26: ffff0000c8c97024 x25: ffff0000c1170000 x24: 1fffe0001bcf9d55 [ 85.716301][ T5443] x23: 1fffe0001bcf9d55 x22: ffff0000de7ceaa8 x21: 00000000fffffff4 [ 85.717663][ T5443] x20: 0000000000000051 x19: ffff0000de7cea50 x18: 0000000000000001 [ 85.718929][ T5443] x17: 0000000000000000 x16: ffff80001125f020 x15: 00000000ffffffff [ 85.720184][ T5443] x14: 0000000000000001 x13: 1fffe000341f05ab x12: 0000000000ff0100 [ 85.721447][ T5443] x11: 0000000000000000 x10: 0000000000000000 x9 : 99422653de5ace00 [ 85.722721][ T5443] x8 : 99422653de5ace00 x7 : 0000000000000001 x6 : 0000000000000001 [ 85.724063][ T5443] x5 : ffff800021a570d8 x4 : ffff80001437f3e0 x3 : ffff800008509220 [ 85.725389][ T5443] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 85.726661][ T5443] Call trace: [ 85.727207][ T5443] btrfs_run_delayed_refs+0x3e4/0x458 [ 85.728068][ T5443] btrfs_commit_transaction+0x1e0/0x3078 [ 85.728951][ T5443] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 85.729941][ T5443] btrfs_ioctl+0x50c/0xa8c [ 85.730702][ T5443] __arm64_sys_ioctl+0x14c/0x1c8 [ 85.731592][ T5443] invoke_syscall+0x98/0x2b0 [ 85.732379][ T5443] el0_svc_common+0x138/0x258 [ 85.733238][ T5443] do_el0_svc+0x58/0x13c [ 85.733925][ T5443] el0_svc+0x78/0x1d0 [ 85.734620][ T5443] el0t_64_sync_handler+0xcc/0xe4 [ 85.735434][ T5443] el0t_64_sync+0x1a0/0x1a4 [ 85.736203][ T5443] irq event stamp: 79168 [ 85.736926][ T5443] hardirqs last enabled at (79167): [] __up_console_sem+0xb4/0xfc [ 85.738444][ T5443] hardirqs last disabled at (79168): [] el1_dbg+0x24/0x80 [ 85.739898][ T5443] softirqs last enabled at (79136): [] handle_softirqs+0xa40/0xbe4 [ 85.741432][ T5443] softirqs last disabled at (79069): [] __irq_exit_rcu+0x240/0x43c [ 85.743034][ T5443] ---[ end trace 28ba6f7054f9b12e ]--- [ 85.744390][ T5443] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 85.746010][ T5443] BTRFS info (device loop0): forced readonly [ 85.907736][ T5465] loop0: detected capacity change from 0 to 32768 [ 85.950101][ T5465] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.38 (5465) [ 85.953190][ T5465] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 85.954560][ T5465] BTRFS info (device loop0): using free space tree [ 85.955682][ T5465] BTRFS info (device loop0): has skinny extents [ 85.967867][ T5465] BTRFS info (device loop0): enabling ssd optimizations [ 85.971221][ T5465] FAULT_INJECTION: forcing a failure. [ 85.971221][ T5465] name failslab, interval 1, probability 0, space 0, times 0 [ 85.973284][ T5465] CPU: 1 PID: 5465 Comm: syz.0.38 Tainted: G W syzkaller #0 [ 85.974741][ T5465] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 85.976324][ T5465] Call trace: [ 85.976805][ T5465] dump_backtrace+0x0/0x458 [ 85.977583][ T5465] show_stack+0x2c/0x3c [ 85.978307][ T5465] __dump_stack+0x30/0x40 [ 85.979157][ T5465] dump_stack_lvl+0xf4/0x15c [ 85.979938][ T5465] dump_stack+0x1c/0x5c [ 85.980655][ T5465] should_fail+0x3bc/0x514 [ 85.981416][ T5465] __should_failslab+0xbc/0x10c [ 85.982246][ T5465] should_failslab+0x10/0x28 [ 85.983007][ T5465] slab_pre_alloc_hook+0x64/0xe8 [ 85.983888][ T5465] kmem_cache_alloc+0x94/0x3d4 [ 85.984656][ T5465] btrfs_alloc_path+0x5c/0x68 [ 85.985419][ T5465] __btrfs_run_delayed_refs+0xe70/0x348c [ 85.986390][ T5465] btrfs_run_delayed_refs+0x124/0x458 [ 85.987269][ T5465] btrfs_commit_transaction+0x1e0/0x3078 [ 85.988192][ T5465] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 85.989105][ T5465] btrfs_ioctl+0x50c/0xa8c [ 85.989818][ T5465] __arm64_sys_ioctl+0x14c/0x1c8 [ 85.990621][ T5465] invoke_syscall+0x98/0x2b0 [ 85.991389][ T5465] el0_svc_common+0x138/0x258 [ 85.992168][ T5465] do_el0_svc+0x58/0x13c [ 85.992854][ T5465] el0_svc+0x78/0x1d0 [ 85.993521][ T5465] el0t_64_sync_handler+0xcc/0xe4 [ 85.994340][ T5465] el0t_64_sync+0x1a0/0x1a4 [ 85.996599][ T5465] BTRFS error (device loop0): failed to run delayed ref for logical 5242880 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 85.998816][ T5465] ------------[ cut here ]------------ [ 85.999740][ T5465] WARNING: CPU: 1 PID: 5465 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 86.001308][ T5465] Modules linked in: [ 86.001898][ T5465] CPU: 1 PID: 5465 Comm: syz.0.38 Tainted: G W syzkaller #0 [ 86.003292][ T5465] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 86.004864][ T5465] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 86.006100][ T5465] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 86.006995][ T5465] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 86.007862][ T5465] sp : ffff800021a677d0 [ 86.008502][ T5465] x29: ffff800021a677e0 x28: ffff0000c8c92000 x27: dfff800000000000 [ 86.009934][ T5465] x26: ffff0000c8c92024 x25: ffff0000d5078000 x24: 1fffe0001bcb5bad [ 86.011326][ T5465] x23: 1fffe0001bcb5bad x22: ffff0000de5add68 x21: 00000000fffffff4 [ 86.012656][ T5465] x20: 0000000000000051 x19: ffff0000de5add10 x18: 0000000000000001 [ 86.013949][ T5465] x17: 0000000000000000 x16: ffff80001125f020 x15: 00000000ffffffff [ 86.015221][ T5465] x14: 0000000000000001 x13: 1fffe000341f47ab x12: 0000000000ff0100 [ 86.016512][ T5465] x11: 0000000000000000 x10: 0000000000000000 x9 : 3a031503963ae500 [ 86.017831][ T5465] x8 : 3a031503963ae500 x7 : 0000000000000001 x6 : 0000000000000001 [ 86.019172][ T5465] x5 : ffff800021a670d8 x4 : ffff80001437f3e0 x3 : ffff800008509220 [ 86.020510][ T5465] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 86.021981][ T5465] Call trace: [ 86.022516][ T5465] btrfs_run_delayed_refs+0x3e4/0x458 [ 86.023481][ T5465] btrfs_commit_transaction+0x1e0/0x3078 [ 86.024439][ T5465] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 86.025393][ T5465] btrfs_ioctl+0x50c/0xa8c [ 86.026143][ T5465] __arm64_sys_ioctl+0x14c/0x1c8 [ 86.027040][ T5465] invoke_syscall+0x98/0x2b0 [ 86.027842][ T5465] el0_svc_common+0x138/0x258 [ 86.028631][ T5465] do_el0_svc+0x58/0x13c [ 86.029359][ T5465] el0_svc+0x78/0x1d0 [ 86.030069][ T5465] el0t_64_sync_handler+0xcc/0xe4 [ 86.030920][ T5465] el0t_64_sync+0x1a0/0x1a4 [ 86.031665][ T5465] irq event stamp: 79060 [ 86.032445][ T5465] hardirqs last enabled at (79059): [] __up_console_sem+0xb4/0xfc [ 86.033991][ T5465] hardirqs last disabled at (79060): [] el1_dbg+0x24/0x80 [ 86.035417][ T5465] softirqs last enabled at (79038): [] handle_softirqs+0xa40/0xbe4 [ 86.037016][ T5465] softirqs last disabled at (78901): [] __irq_exit_rcu+0x240/0x43c [ 86.038465][ T5465] ---[ end trace 28ba6f7054f9b12f ]--- [ 86.041476][ T5465] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 86.043046][ T5465] BTRFS info (device loop0): forced readonly [ 86.245938][ T5487] loop0: detected capacity change from 0 to 32768 [ 86.298297][ T5487] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.39 (5487) [ 86.304783][ T5487] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 86.306375][ T5487] BTRFS info (device loop0): using free space tree [ 86.308712][ T5487] BTRFS info (device loop0): has skinny extents [ 86.316419][ T5487] BTRFS info (device loop0): enabling ssd optimizations [ 86.319859][ T5487] FAULT_INJECTION: forcing a failure. [ 86.319859][ T5487] name failslab, interval 1, probability 0, space 0, times 0 [ 86.322029][ T5487] CPU: 1 PID: 5487 Comm: syz.0.39 Tainted: G W syzkaller #0 [ 86.323406][ T5487] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 86.325049][ T5487] Call trace: [ 86.325561][ T5487] dump_backtrace+0x0/0x458 [ 86.326280][ T5487] show_stack+0x2c/0x3c [ 86.327001][ T5487] __dump_stack+0x30/0x40 [ 86.327766][ T5487] dump_stack_lvl+0xf4/0x15c [ 86.328578][ T5487] dump_stack+0x1c/0x5c [ 86.329245][ T5487] should_fail+0x3bc/0x514 [ 86.329986][ T5487] __should_failslab+0xbc/0x10c [ 86.330823][ T5487] should_failslab+0x10/0x28 [ 86.331638][ T5487] slab_pre_alloc_hook+0x64/0xe8 [ 86.332455][ T5487] kmem_cache_alloc+0x94/0x3d4 [ 86.333260][ T5487] btrfs_alloc_path+0x5c/0x68 [ 86.334059][ T5487] __btrfs_run_delayed_refs+0xe70/0x348c [ 86.334921][ T5487] btrfs_run_delayed_refs+0x124/0x458 [ 86.335755][ T5487] btrfs_commit_transaction+0x1e0/0x3078 [ 86.336644][ T5487] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 86.337506][ T5487] btrfs_ioctl+0x50c/0xa8c [ 86.338259][ T5487] __arm64_sys_ioctl+0x14c/0x1c8 [ 86.339151][ T5487] invoke_syscall+0x98/0x2b0 [ 86.339960][ T5487] el0_svc_common+0x138/0x258 [ 86.340789][ T5487] do_el0_svc+0x58/0x13c [ 86.341499][ T5487] el0_svc+0x78/0x1d0 [ 86.342148][ T5487] el0t_64_sync_handler+0xcc/0xe4 [ 86.342974][ T5487] el0t_64_sync+0x1a0/0x1a4 [ 86.345750][ T5487] BTRFS error (device loop0): failed to run delayed ref for logical 5242880 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 86.348102][ T5487] ------------[ cut here ]------------ [ 86.349083][ T5487] WARNING: CPU: 1 PID: 5487 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 86.350727][ T5487] Modules linked in: [ 86.351410][ T5487] CPU: 1 PID: 5487 Comm: syz.0.39 Tainted: G W syzkaller #0 [ 86.352805][ T5487] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 86.354373][ T5487] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 86.355587][ T5487] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 86.356447][ T5487] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 86.357403][ T5487] sp : ffff800021a677d0 [ 86.358091][ T5487] x29: ffff800021a677e0 x28: ffff0000db949000 x27: dfff800000000000 [ 86.359460][ T5487] x26: ffff0000db949024 x25: ffff0000d509c000 x24: 1fffe0001bcb5bc3 [ 86.360797][ T5487] x23: 1fffe0001bcb5bc3 x22: ffff0000de5ade18 x21: 00000000fffffff4 [ 86.362046][ T5487] x20: 0000000000000051 x19: ffff0000de5addc0 x18: 0000000000000001 [ 86.363250][ T5487] x17: 0000000000000000 x16: ffff80001125f020 x15: 00000000ffffffff [ 86.364567][ T5487] x14: 0000000000000001 x13: 1fffe000341f47ab x12: 0000000000ff0100 [ 86.365838][ T5487] x11: 0000000000000000 x10: 0000000000000000 x9 : ef11c59b84796100 [ 86.367197][ T5487] x8 : ef11c59b84796100 x7 : 0000000000000001 x6 : 0000000000000001 [ 86.368492][ T5487] x5 : ffff800021a670d8 x4 : ffff80001437f3e0 x3 : ffff800008509220 [ 86.369838][ T5487] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 86.371101][ T5487] Call trace: [ 86.371676][ T5487] btrfs_run_delayed_refs+0x3e4/0x458 [ 86.372621][ T5487] btrfs_commit_transaction+0x1e0/0x3078 [ 86.373583][ T5487] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 86.374525][ T5487] btrfs_ioctl+0x50c/0xa8c [ 86.375348][ T5487] __arm64_sys_ioctl+0x14c/0x1c8 [ 86.376181][ T5487] invoke_syscall+0x98/0x2b0 [ 86.376989][ T5487] el0_svc_common+0x138/0x258 [ 86.377745][ T5487] do_el0_svc+0x58/0x13c [ 86.378517][ T5487] el0_svc+0x78/0x1d0 [ 86.379178][ T5487] el0t_64_sync_handler+0xcc/0xe4 [ 86.380017][ T5487] el0t_64_sync+0x1a0/0x1a4 [ 86.380772][ T5487] irq event stamp: 79084 [ 86.381511][ T5487] hardirqs last enabled at (79083): [] __up_console_sem+0xb4/0xfc [ 86.383046][ T5487] hardirqs last disabled at (79084): [] el1_dbg+0x24/0x80 [ 86.384511][ T5487] softirqs last enabled at (79062): [] handle_softirqs+0xa40/0xbe4 [ 86.386115][ T5487] softirqs last disabled at (78967): [] __irq_exit_rcu+0x240/0x43c [ 86.387745][ T5487] ---[ end trace 28ba6f7054f9b130 ]--- [ 86.390658][ T5487] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 86.392247][ T5487] BTRFS info (device loop0): forced readonly [ 86.573162][ T5509] loop0: detected capacity change from 0 to 32768 [ 86.611446][ T5509] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.40 (5509) [ 86.615991][ T5509] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 86.617851][ T5509] BTRFS info (device loop0): using free space tree [ 86.618912][ T5509] BTRFS info (device loop0): has skinny extents [ 86.625943][ T5509] BTRFS info (device loop0): enabling ssd optimizations [ 86.630107][ T5509] FAULT_INJECTION: forcing a failure. [ 86.630107][ T5509] name failslab, interval 1, probability 0, space 0, times 0 [ 86.632195][ T5509] CPU: 1 PID: 5509 Comm: syz.0.40 Tainted: G W syzkaller #0 [ 86.633693][ T5509] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 86.635235][ T5509] Call trace: [ 86.635701][ T5509] dump_backtrace+0x0/0x458 [ 86.636459][ T5509] show_stack+0x2c/0x3c [ 86.637100][ T5509] __dump_stack+0x30/0x40 [ 86.637855][ T5509] dump_stack_lvl+0xf4/0x15c [ 86.638588][ T5509] dump_stack+0x1c/0x5c [ 86.639216][ T5509] should_fail+0x3bc/0x514 [ 86.639918][ T5509] __should_failslab+0xbc/0x10c [ 86.640717][ T5509] should_failslab+0x10/0x28 [ 86.641477][ T5509] slab_pre_alloc_hook+0x64/0xe8 [ 86.642324][ T5509] kmem_cache_alloc+0x94/0x3d4 [ 86.643108][ T5509] btrfs_alloc_path+0x5c/0x68 [ 86.643883][ T5509] __btrfs_run_delayed_refs+0xe70/0x348c [ 86.644832][ T5509] btrfs_run_delayed_refs+0x124/0x458 [ 86.645725][ T5509] btrfs_commit_transaction+0x1e0/0x3078 [ 86.646683][ T5509] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 86.647602][ T5509] btrfs_ioctl+0x50c/0xa8c [ 86.648344][ T5509] __arm64_sys_ioctl+0x14c/0x1c8 [ 86.649174][ T5509] invoke_syscall+0x98/0x2b0 [ 86.649895][ T5509] el0_svc_common+0x138/0x258 [ 86.650766][ T5509] do_el0_svc+0x58/0x13c [ 86.651520][ T5509] el0_svc+0x78/0x1d0 [ 86.652198][ T5509] el0t_64_sync_handler+0xcc/0xe4 [ 86.653021][ T5509] el0t_64_sync+0x1a0/0x1a4 [ 86.656157][ T5509] BTRFS error (device loop0): failed to run delayed ref for logical 5242880 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 86.658367][ T5509] ------------[ cut here ]------------ [ 86.659299][ T5509] WARNING: CPU: 1 PID: 5509 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 86.660837][ T5509] Modules linked in: [ 86.661471][ T5509] CPU: 1 PID: 5509 Comm: syz.0.40 Tainted: G W syzkaller #0 [ 86.662901][ T5509] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 86.664487][ T5509] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 86.665782][ T5509] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 86.666599][ T5509] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 86.667425][ T5509] sp : ffff800021a677d0 [ 86.668089][ T5509] x29: ffff800021a677e0 x28: ffff0000c8c91000 x27: dfff800000000000 [ 86.669380][ T5509] x26: ffff0000c8c91024 x25: ffff0000d6e8c000 x24: 1fffe0001bcb5bef [ 86.670709][ T5509] x23: 1fffe0001bcb5bef x22: ffff0000de5adf78 x21: 00000000fffffff4 [ 86.672095][ T5509] x20: 0000000000000051 x19: ffff0000de5adf20 x18: 0000000000000001 [ 86.673566][ T5509] x17: 0000000000000000 x16: ffff80001125f020 x15: 00000000ffffffff [ 86.674942][ T5509] x14: 0000000000000001 x13: 1fffe000341f47ab x12: 0000000000ff0100 [ 86.676261][ T5509] x11: 0000000000000000 x10: 0000000000000000 x9 : 637fc6eb54b4e600 [ 86.677519][ T5509] x8 : 637fc6eb54b4e600 x7 : 0000000000000001 x6 : 0000000000000001 [ 86.678943][ T5509] x5 : ffff800021a670d8 x4 : ffff80001437f3e0 x3 : ffff800008509220 [ 86.680322][ T5509] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 86.681689][ T5509] Call trace: [ 86.682256][ T5509] btrfs_run_delayed_refs+0x3e4/0x458 [ 86.683131][ T5509] btrfs_commit_transaction+0x1e0/0x3078 [ 86.684113][ T5509] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 86.684983][ T5509] btrfs_ioctl+0x50c/0xa8c [ 86.685773][ T5509] __arm64_sys_ioctl+0x14c/0x1c8 [ 86.686616][ T5509] invoke_syscall+0x98/0x2b0 [ 86.687386][ T5509] el0_svc_common+0x138/0x258 [ 86.688117][ T5509] do_el0_svc+0x58/0x13c [ 86.688838][ T5509] el0_svc+0x78/0x1d0 [ 86.689533][ T5509] el0t_64_sync_handler+0xcc/0xe4 [ 86.690347][ T5509] el0t_64_sync+0x1a0/0x1a4 [ 86.691084][ T5509] irq event stamp: 78884 [ 86.691738][ T5509] hardirqs last enabled at (78883): [] __up_console_sem+0xb4/0xfc [ 86.693332][ T5509] hardirqs last disabled at (78884): [] el1_dbg+0x24/0x80 [ 86.694724][ T5509] softirqs last enabled at (78862): [] handle_softirqs+0xa40/0xbe4 [ 86.696270][ T5509] softirqs last disabled at (78849): [] __irq_exit_rcu+0x240/0x43c [ 86.697877][ T5509] ---[ end trace 28ba6f7054f9b131 ]--- [ 86.700781][ T5509] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 86.702450][ T5509] BTRFS info (device loop0): forced readonly [ 86.835852][ T5531] loop0: detected capacity change from 0 to 32768 [ 86.843129][ T5531] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.41 (5531) [ 86.848112][ T5531] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 86.849650][ T5531] BTRFS info (device loop0): using free space tree [ 86.850744][ T5531] BTRFS info (device loop0): has skinny extents [ 86.858825][ T5531] BTRFS info (device loop0): enabling ssd optimizations [ 86.862458][ T5531] FAULT_INJECTION: forcing a failure. [ 86.862458][ T5531] name failslab, interval 1, probability 0, space 0, times 0 [ 86.864676][ T5531] CPU: 0 PID: 5531 Comm: syz.0.41 Tainted: G W syzkaller #0 [ 86.866056][ T5531] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 86.867721][ T5531] Call trace: [ 86.868312][ T5531] dump_backtrace+0x0/0x458 [ 86.869039][ T5531] show_stack+0x2c/0x3c [ 86.869779][ T5531] __dump_stack+0x30/0x40 [ 86.870554][ T5531] dump_stack_lvl+0xf4/0x15c [ 86.871321][ T5531] dump_stack+0x1c/0x5c [ 86.872075][ T5531] should_fail+0x3bc/0x514 [ 86.872814][ T5531] __should_failslab+0xbc/0x10c [ 86.873621][ T5531] should_failslab+0x10/0x28 [ 86.874394][ T5531] slab_pre_alloc_hook+0x64/0xe8 [ 86.875182][ T5531] kmem_cache_alloc+0x94/0x3d4 [ 86.875964][ T5531] btrfs_alloc_path+0x5c/0x68 [ 86.876734][ T5531] __btrfs_run_delayed_refs+0xe70/0x348c [ 86.877664][ T5531] btrfs_run_delayed_refs+0x124/0x458 [ 86.878581][ T5531] btrfs_commit_transaction+0x1e0/0x3078 [ 86.879525][ T5531] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 86.880427][ T5531] btrfs_ioctl+0x50c/0xa8c [ 86.881179][ T5531] __arm64_sys_ioctl+0x14c/0x1c8 [ 86.881949][ T5531] invoke_syscall+0x98/0x2b0 [ 86.882704][ T5531] el0_svc_common+0x138/0x258 [ 86.883494][ T5531] do_el0_svc+0x58/0x13c [ 86.884234][ T5531] el0_svc+0x78/0x1d0 [ 86.884947][ T5531] el0t_64_sync_handler+0xcc/0xe4 [ 86.885859][ T5531] el0t_64_sync+0x1a0/0x1a4 [ 86.888237][ T5531] BTRFS error (device loop0): failed to run delayed ref for logical 5242880 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 86.890372][ T5531] ------------[ cut here ]------------ [ 86.891406][ T5531] WARNING: CPU: 0 PID: 5531 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 86.892987][ T5531] Modules linked in: [ 86.893605][ T5531] CPU: 0 PID: 5531 Comm: syz.0.41 Tainted: G W syzkaller #0 [ 86.895015][ T5531] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 86.896580][ T5531] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 86.897881][ T5531] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 86.898870][ T5531] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 86.899833][ T5531] sp : ffff8000223077d0 [ 86.900499][ T5531] x29: ffff8000223077e0 x28: ffff0000d028c000 x27: dfff800000000000 [ 86.901841][ T5531] x26: ffff0000d028c024 x25: ffff0000d6e8c000 x24: 1fffe0001bcf9d29 [ 86.903134][ T5531] x23: 1fffe0001bcf9d29 x22: ffff0000de7ce948 x21: 00000000fffffff4 [ 86.904550][ T5531] x20: 0000000000000051 x19: ffff0000de7ce8f0 x18: 0000000000000001 [ 86.905804][ T5531] x17: 0000000000000000 x16: ffff80001125f020 x15: 00000000ffffffff [ 86.907216][ T5531] x14: 0000000000000001 x13: 1fffe000341f05ab x12: 0000000000ff0100 [ 86.908605][ T5531] x11: 0000000000000000 x10: 0000000000000000 x9 : 8bf8a3d199af7900 [ 86.910028][ T5531] x8 : 8bf8a3d199af7900 x7 : 0000000000000001 x6 : 0000000000000001 [ 86.911398][ T5531] x5 : ffff8000223070d8 x4 : ffff80001437f3e0 x3 : ffff800008509220 [ 86.912808][ T5531] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 86.914198][ T5531] Call trace: [ 86.914772][ T5531] btrfs_run_delayed_refs+0x3e4/0x458 [ 86.915723][ T5531] btrfs_commit_transaction+0x1e0/0x3078 [ 86.916731][ T5531] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 86.917677][ T5531] btrfs_ioctl+0x50c/0xa8c [ 86.918420][ T5531] __arm64_sys_ioctl+0x14c/0x1c8 [ 86.919230][ T5531] invoke_syscall+0x98/0x2b0 [ 86.919987][ T5531] el0_svc_common+0x138/0x258 [ 86.920742][ T5531] do_el0_svc+0x58/0x13c [ 86.921446][ T5531] el0_svc+0x78/0x1d0 [ 86.922118][ T5531] el0t_64_sync_handler+0xcc/0xe4 [ 86.922939][ T5531] el0t_64_sync+0x1a0/0x1a4 [ 86.923698][ T5531] irq event stamp: 79098 [ 86.924379][ T5531] hardirqs last enabled at (79097): [] __up_console_sem+0xb4/0xfc [ 86.925964][ T5531] hardirqs last disabled at (79098): [] el1_dbg+0x24/0x80 [ 86.927352][ T5531] softirqs last enabled at (79064): [] handle_softirqs+0xa40/0xbe4 [ 86.928877][ T5531] softirqs last disabled at (78993): [] __irq_exit_rcu+0x240/0x43c [ 86.930384][ T5531] ---[ end trace 28ba6f7054f9b132 ]--- [ 86.931862][ T5531] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 86.933510][ T5531] BTRFS info (device loop0): forced readonly [ 87.172257][ T5553] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.42 (5553) [ 87.176322][ T5553] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 87.177851][ T5553] BTRFS info (device loop0): using free space tree [ 87.178974][ T5553] BTRFS info (device loop0): has skinny extents [ 87.186651][ T5553] BTRFS info (device loop0): enabling ssd optimizations [ 87.190659][ T5553] FAULT_INJECTION: forcing a failure. [ 87.190659][ T5553] name failslab, interval 1, probability 0, space 0, times 0 [ 87.192824][ T5553] CPU: 0 PID: 5553 Comm: syz.0.42 Tainted: G W syzkaller #0 [ 87.194208][ T5553] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 87.195792][ T5553] Call trace: [ 87.196315][ T5553] dump_backtrace+0x0/0x458 [ 87.196976][ T5553] show_stack+0x2c/0x3c [ 87.197638][ T5553] __dump_stack+0x30/0x40 [ 87.198372][ T5553] dump_stack_lvl+0xf4/0x15c [ 87.199118][ T5553] dump_stack+0x1c/0x5c [ 87.199833][ T5553] should_fail+0x3bc/0x514 [ 87.200561][ T5553] __should_failslab+0xbc/0x10c [ 87.201391][ T5553] should_failslab+0x10/0x28 [ 87.202230][ T5553] slab_pre_alloc_hook+0x64/0xe8 [ 87.203063][ T5553] kmem_cache_alloc+0x94/0x3d4 [ 87.203905][ T5553] btrfs_alloc_path+0x5c/0x68 [ 87.204721][ T5553] __btrfs_free_extent+0x1a8/0x1abc [ 87.205583][ T5553] __btrfs_run_delayed_refs+0xbf0/0x348c [ 87.206522][ T5553] btrfs_run_delayed_refs+0x124/0x458 [ 87.207433][ T5553] btrfs_commit_transaction+0x1e0/0x3078 [ 87.208357][ T5553] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 87.209288][ T5553] btrfs_ioctl+0x50c/0xa8c [ 87.210023][ T5553] __arm64_sys_ioctl+0x14c/0x1c8 [ 87.210800][ T5553] invoke_syscall+0x98/0x2b0 [ 87.211550][ T5553] el0_svc_common+0x138/0x258 [ 87.212338][ T5553] do_el0_svc+0x58/0x13c [ 87.213034][ T5553] el0_svc+0x78/0x1d0 [ 87.213637][ T5553] el0t_64_sync_handler+0xcc/0xe4 [ 87.214452][ T5553] el0t_64_sync+0x1a0/0x1a4 [ 87.216116][ T5553] BTRFS error (device loop0): failed to run delayed ref for logical 5255168 num_bytes 4096 type 176 action 2 ref_mod 1: -12 [ 87.218281][ T5553] ------------[ cut here ]------------ [ 87.219313][ T5553] WARNING: CPU: 0 PID: 5553 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 87.220871][ T5553] Modules linked in: [ 87.221426][ T5553] CPU: 0 PID: 5553 Comm: syz.0.42 Tainted: G W syzkaller #0 [ 87.222854][ T5553] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 87.224478][ T5553] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 87.225683][ T5553] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 87.226667][ T5553] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 87.227663][ T5553] sp : ffff8000223077d0 [ 87.228336][ T5553] x29: ffff8000223077e0 x28: ffff0000d028e000 x27: dfff800000000000 [ 87.229695][ T5553] x26: ffff0000d028e024 x25: ffff0000dc71c000 x24: 1fffe0001bcf9cfd [ 87.231002][ T5553] x23: 1fffe0001bcf9cfd x22: ffff0000de7ce7e8 x21: 00000000fffffff4 [ 87.232313][ T5553] x20: 0000000000000051 x19: ffff0000de7ce790 x18: 0000000000000001 [ 87.233696][ T5553] x17: 0000000000000000 x16: ffff80001125f020 x15: 00000000ffffffff [ 87.235013][ T5553] x14: 0000000000000001 x13: 1fffe000341f05ab x12: 0000000000ff0100 [ 87.236346][ T5553] x11: 0000000000000000 x10: 0000000000000000 x9 : 81f84a6e4f2e9400 [ 87.237706][ T5553] x8 : 81f84a6e4f2e9400 x7 : 0000000000000001 x6 : 0000000000000001 [ 87.239059][ T5553] x5 : ffff8000223070d8 x4 : ffff80001437f3e0 x3 : ffff800008509220 [ 87.240367][ T5553] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 87.241717][ T5553] Call trace: [ 87.242264][ T5553] btrfs_run_delayed_refs+0x3e4/0x458 [ 87.243116][ T5553] btrfs_commit_transaction+0x1e0/0x3078 [ 87.244082][ T5553] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 87.245026][ T5553] btrfs_ioctl+0x50c/0xa8c [ 87.245779][ T5553] __arm64_sys_ioctl+0x14c/0x1c8 [ 87.246621][ T5553] invoke_syscall+0x98/0x2b0 [ 87.247394][ T5553] el0_svc_common+0x138/0x258 [ 87.248221][ T5553] do_el0_svc+0x58/0x13c [ 87.248902][ T5553] el0_svc+0x78/0x1d0 [ 87.249531][ T5553] el0t_64_sync_handler+0xcc/0xe4 [ 87.250366][ T5553] el0t_64_sync+0x1a0/0x1a4 [ 87.251119][ T5553] irq event stamp: 79264 [ 87.251788][ T5553] hardirqs last enabled at (79263): [] __up_console_sem+0xb4/0xfc [ 87.253395][ T5553] hardirqs last disabled at (79264): [] el1_dbg+0x24/0x80 [ 87.254818][ T5553] softirqs last enabled at (79238): [] handle_softirqs+0xa40/0xbe4 [ 87.256408][ T5553] softirqs last disabled at (79227): [] __irq_exit_rcu+0x240/0x43c [ 87.258051][ T5553] ---[ end trace 28ba6f7054f9b133 ]--- [ 87.259533][ T5553] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 87.261161][ T5553] BTRFS info (device loop0): forced readonly [ 87.470351][ T5575] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.43 (5575) [ 87.473681][ T5575] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 87.475121][ T5575] BTRFS info (device loop0): using free space tree [ 87.476110][ T5575] BTRFS info (device loop0): has skinny extents [ 87.483611][ T5575] BTRFS info (device loop0): enabling ssd optimizations [ 87.486941][ T5575] FAULT_INJECTION: forcing a failure. [ 87.486941][ T5575] name failslab, interval 1, probability 0, space 0, times 0 [ 87.489319][ T5575] CPU: 0 PID: 5575 Comm: syz.0.43 Tainted: G W syzkaller #0 [ 87.490703][ T5575] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 87.492366][ T5575] Call trace: [ 87.492853][ T5575] dump_backtrace+0x0/0x458 [ 87.493624][ T5575] show_stack+0x2c/0x3c [ 87.494323][ T5575] __dump_stack+0x30/0x40 [ 87.495025][ T5575] dump_stack_lvl+0xf4/0x15c [ 87.495840][ T5575] dump_stack+0x1c/0x5c [ 87.496479][ T5575] should_fail+0x3bc/0x514 [ 87.497162][ T5575] __should_failslab+0xbc/0x10c [ 87.497979][ T5575] should_failslab+0x10/0x28 [ 87.498765][ T5575] slab_pre_alloc_hook+0x64/0xe8 [ 87.499633][ T5575] kmem_cache_alloc+0x94/0x3d4 [ 87.500400][ T5575] btrfs_alloc_path+0x5c/0x68 [ 87.501167][ T5575] __btrfs_free_extent+0x1a8/0x1abc [ 87.502014][ T5575] __btrfs_run_delayed_refs+0xbf0/0x348c [ 87.502970][ T5575] btrfs_run_delayed_refs+0x124/0x458 [ 87.503910][ T5575] btrfs_commit_transaction+0x1e0/0x3078 [ 87.504841][ T5575] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 87.505750][ T5575] btrfs_ioctl+0x50c/0xa8c [ 87.506518][ T5575] __arm64_sys_ioctl+0x14c/0x1c8 [ 87.507408][ T5575] invoke_syscall+0x98/0x2b0 [ 87.508216][ T5575] el0_svc_common+0x138/0x258 [ 87.509007][ T5575] do_el0_svc+0x58/0x13c [ 87.509734][ T5575] el0_svc+0x78/0x1d0 [ 87.510418][ T5575] el0t_64_sync_handler+0xcc/0xe4 [ 87.511248][ T5575] el0t_64_sync+0x1a0/0x1a4 [ 87.512121][ T5575] BTRFS error (device loop0): failed to run delayed ref for logical 5255168 num_bytes 4096 type 176 action 2 ref_mod 1: -12 [ 87.514220][ T5575] ------------[ cut here ]------------ [ 87.515209][ T5575] WARNING: CPU: 0 PID: 5575 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 87.516899][ T5575] Modules linked in: [ 87.517541][ T5575] CPU: 0 PID: 5575 Comm: syz.0.43 Tainted: G W syzkaller #0 [ 87.518993][ T5575] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 87.520651][ T5575] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 87.521929][ T5575] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 87.522870][ T5575] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 87.523773][ T5575] sp : ffff8000222f77d0 [ 87.524514][ T5575] x29: ffff8000222f77e0 x28: ffff0000d0289000 x27: dfff800000000000 [ 87.525902][ T5575] x26: ffff0000d0289024 x25: ffff0000e70ac000 x24: 1fffe0001bcf9d97 [ 87.527227][ T5575] x23: 1fffe0001bcf9d97 x22: ffff0000de7cecb8 x21: 00000000fffffff4 [ 87.528582][ T5575] x20: 0000000000000051 x19: ffff0000de7cec60 x18: 0000000000000001 [ 87.529872][ T5575] x17: 0000000000000000 x16: ffff80001125f020 x15: 00000000ffffffff [ 87.531115][ T5575] x14: 0000000000000001 x13: 1fffe000341f05ab x12: 0000000000ff0100 [ 87.532373][ T5575] x11: 0000000000000000 x10: 0000000000000000 x9 : a8e2ffc6edeb2100 [ 87.533746][ T5575] x8 : a8e2ffc6edeb2100 x7 : 0000000000000001 x6 : 0000000000000001 [ 87.535104][ T5575] x5 : ffff8000222f70d8 x4 : ffff80001437f3e0 x3 : ffff800008509220 [ 87.536453][ T5575] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 87.537811][ T5575] Call trace: [ 87.538348][ T5575] btrfs_run_delayed_refs+0x3e4/0x458 [ 87.539207][ T5575] btrfs_commit_transaction+0x1e0/0x3078 [ 87.540204][ T5575] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 87.541128][ T5575] btrfs_ioctl+0x50c/0xa8c [ 87.541867][ T5575] __arm64_sys_ioctl+0x14c/0x1c8 [ 87.542694][ T5575] invoke_syscall+0x98/0x2b0 [ 87.543462][ T5575] el0_svc_common+0x138/0x258 [ 87.544220][ T5575] do_el0_svc+0x58/0x13c [ 87.544917][ T5575] el0_svc+0x78/0x1d0 [ 87.545587][ T5575] el0t_64_sync_handler+0xcc/0xe4 [ 87.546434][ T5575] el0t_64_sync+0x1a0/0x1a4 [ 87.547196][ T5575] irq event stamp: 79294 [ 87.547868][ T5575] hardirqs last enabled at (79293): [] __up_console_sem+0xb4/0xfc [ 87.549287][ T5575] hardirqs last disabled at (79294): [] el1_dbg+0x24/0x80 [ 87.550654][ T5575] softirqs last enabled at (79262): [] handle_softirqs+0xa40/0xbe4 [ 87.552145][ T5575] softirqs last disabled at (79245): [] __irq_exit_rcu+0x240/0x43c [ 87.553631][ T5575] ---[ end trace 28ba6f7054f9b134 ]--- [ 87.554805][ T5575] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 87.556437][ T5575] BTRFS info (device loop0): forced readonly [ 87.711324][ T5597] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.44 (5597) [ 87.715288][ T5597] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 87.717277][ T5597] BTRFS info (device loop0): using free space tree [ 87.718344][ T5597] BTRFS info (device loop0): has skinny extents [ 87.727361][ T5597] BTRFS info (device loop0): enabling ssd optimizations [ 87.730403][ T5597] FAULT_INJECTION: forcing a failure. [ 87.730403][ T5597] name failslab, interval 1, probability 0, space 0, times 0 [ 87.732566][ T5597] CPU: 0 PID: 5597 Comm: syz.0.44 Tainted: G W syzkaller #0 [ 87.734007][ T5597] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 87.735860][ T5597] Call trace: [ 87.736434][ T5597] dump_backtrace+0x0/0x458 [ 87.737167][ T5597] show_stack+0x2c/0x3c [ 87.737867][ T5597] __dump_stack+0x30/0x40 [ 87.738625][ T5597] dump_stack_lvl+0xf4/0x15c [ 87.739404][ T5597] dump_stack+0x1c/0x5c [ 87.740111][ T5597] should_fail+0x3bc/0x514 [ 87.740860][ T5597] __should_failslab+0xbc/0x10c [ 87.741652][ T5597] should_failslab+0x10/0x28 [ 87.742437][ T5597] slab_pre_alloc_hook+0x64/0xe8 [ 87.743296][ T5597] kmem_cache_alloc+0x94/0x3d4 [ 87.744116][ T5597] btrfs_alloc_path+0x5c/0x68 [ 87.744947][ T5597] __btrfs_run_delayed_refs+0xe70/0x348c [ 87.745864][ T5597] btrfs_run_delayed_refs+0x124/0x458 [ 87.746742][ T5597] btrfs_commit_transaction+0x1e0/0x3078 [ 87.747693][ T5597] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 87.748603][ T5597] btrfs_ioctl+0x50c/0xa8c [ 87.749368][ T5597] __arm64_sys_ioctl+0x14c/0x1c8 [ 87.750234][ T5597] invoke_syscall+0x98/0x2b0 [ 87.750964][ T5597] el0_svc_common+0x138/0x258 [ 87.751761][ T5597] do_el0_svc+0x58/0x13c [ 87.752464][ T5597] el0_svc+0x78/0x1d0 [ 87.753128][ T5597] el0t_64_sync_handler+0xcc/0xe4 [ 87.753917][ T5597] el0t_64_sync+0x1a0/0x1a4 [ 87.754809][ T5597] BTRFS error (device loop0): failed to run delayed ref for logical 5242880 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 87.756882][ T5597] ------------[ cut here ]------------ [ 87.757962][ T5597] WARNING: CPU: 0 PID: 5597 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 87.759531][ T5597] Modules linked in: [ 87.760156][ T5597] CPU: 0 PID: 5597 Comm: syz.0.44 Tainted: G W syzkaller #0 [ 87.761516][ T5597] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 87.763032][ T5597] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 87.764387][ T5597] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 87.765327][ T5597] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 87.766261][ T5597] sp : ffff8000225d77d0 [ 87.766918][ T5597] x29: ffff8000225d77e0 x28: ffff0000d028a000 x27: dfff800000000000 [ 87.768322][ T5597] x26: ffff0000d028a024 x25: ffff0000e83d4000 x24: 1fffe0001bcf9dc3 [ 87.769616][ T5597] x23: 1fffe0001bcf9dc3 x22: ffff0000de7cee18 x21: 00000000fffffff4 [ 87.770871][ T5597] x20: 0000000000000051 x19: ffff0000de7cedc0 x18: 0000000000000001 [ 87.772155][ T5597] x17: 0000000000000000 x16: ffff800008304af8 x15: 00000000ffffffff [ 87.773438][ T5597] x14: 0000000000000001 x13: 1ffff000044bae18 x12: 0000000000ff0100 [ 87.774749][ T5597] x11: 0000000000000000 x10: 0000000000000000 x9 : 6fbf12122e89f300 [ 87.776004][ T5597] x8 : 6fbf12122e89f300 x7 : 0000000000000001 x6 : 0000000000000001 [ 87.777210][ T5597] x5 : ffff8000225d70d8 x4 : ffff80001437f3e0 x3 : ffff800008304c08 [ 87.778421][ T5597] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 87.779802][ T5597] Call trace: [ 87.780301][ T5597] btrfs_run_delayed_refs+0x3e4/0x458 [ 87.781199][ T5597] btrfs_commit_transaction+0x1e0/0x3078 [ 87.782138][ T5597] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 87.783033][ T5597] btrfs_ioctl+0x50c/0xa8c [ 87.783776][ T5597] __arm64_sys_ioctl+0x14c/0x1c8 [ 87.784634][ T5597] invoke_syscall+0x98/0x2b0 [ 87.785478][ T5597] el0_svc_common+0x138/0x258 [ 87.786334][ T5597] do_el0_svc+0x58/0x13c [ 87.787063][ T5597] el0_svc+0x78/0x1d0 [ 87.787714][ T5597] el0t_64_sync_handler+0xcc/0xe4 [ 87.788538][ T5597] el0t_64_sync+0x1a0/0x1a4 [ 87.789316][ T5597] irq event stamp: 78614 [ 87.789981][ T5597] hardirqs last enabled at (78613): [] __up_console_sem+0xb4/0xfc [ 87.791536][ T5597] hardirqs last disabled at (78614): [] el1_dbg+0x24/0x80 [ 87.792885][ T5597] softirqs last enabled at (78604): [] handle_softirqs+0xa40/0xbe4 [ 87.794494][ T5597] softirqs last disabled at (78599): [] __irq_exit_rcu+0x240/0x43c [ 87.796056][ T5597] ---[ end trace 28ba6f7054f9b135 ]--- [ 87.797203][ T5597] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 87.798775][ T5597] BTRFS info (device loop0): forced readonly [ 88.012129][ T5619] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.45 (5619) [ 88.015537][ T5619] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 88.017213][ T5619] BTRFS info (device loop0): using free space tree [ 88.018261][ T5619] BTRFS info (device loop0): has skinny extents [ 88.026648][ T5619] BTRFS info (device loop0): enabling ssd optimizations [ 88.031276][ T5619] FAULT_INJECTION: forcing a failure. [ 88.031276][ T5619] name failslab, interval 1, probability 0, space 0, times 0 [ 88.033318][ T5619] CPU: 0 PID: 5619 Comm: syz.0.45 Tainted: G W syzkaller #0 [ 88.034813][ T5619] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 88.036360][ T5619] Call trace: [ 88.036880][ T5619] dump_backtrace+0x0/0x458 [ 88.037626][ T5619] show_stack+0x2c/0x3c [ 88.038378][ T5619] __dump_stack+0x30/0x40 [ 88.039125][ T5619] dump_stack_lvl+0xf4/0x15c [ 88.039872][ T5619] dump_stack+0x1c/0x5c [ 88.040561][ T5619] should_fail+0x3bc/0x514 [ 88.041261][ T5619] __should_failslab+0xbc/0x10c [ 88.042018][ T5619] should_failslab+0x10/0x28 [ 88.042752][ T5619] slab_pre_alloc_hook+0x64/0xe8 [ 88.043569][ T5619] kmem_cache_alloc+0x94/0x3d4 [ 88.044346][ T5619] btrfs_alloc_path+0x5c/0x68 [ 88.045115][ T5619] __btrfs_run_delayed_refs+0xe70/0x348c [ 88.046034][ T5619] btrfs_run_delayed_refs+0x124/0x458 [ 88.046894][ T5619] btrfs_commit_transaction+0x1e0/0x3078 [ 88.047759][ T5619] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 88.048658][ T5619] btrfs_ioctl+0x50c/0xa8c [ 88.049400][ T5619] __arm64_sys_ioctl+0x14c/0x1c8 [ 88.050206][ T5619] invoke_syscall+0x98/0x2b0 [ 88.051104][ T5619] el0_svc_common+0x138/0x258 [ 88.051881][ T5619] do_el0_svc+0x58/0x13c [ 88.052618][ T5619] el0_svc+0x78/0x1d0 [ 88.053301][ T5619] el0t_64_sync_handler+0xcc/0xe4 [ 88.054129][ T5619] el0t_64_sync+0x1a0/0x1a4 [ 88.055731][ T5619] BTRFS error (device loop0): failed to run delayed ref for logical 5242880 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 88.058101][ T5619] ------------[ cut here ]------------ [ 88.059052][ T5619] WARNING: CPU: 0 PID: 5619 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 88.060622][ T5619] Modules linked in: [ 88.061235][ T5619] CPU: 0 PID: 5619 Comm: syz.0.45 Tainted: G W syzkaller #0 [ 88.062638][ T5619] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 88.064195][ T5619] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 88.065533][ T5619] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 88.066530][ T5619] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 88.067488][ T5619] sp : ffff8000228177d0 [ 88.068211][ T5619] x29: ffff8000228177e0 x28: ffff0000cdaa0000 x27: dfff800000000000 [ 88.069589][ T5619] x26: ffff0000cdaa0024 x25: ffff0000e83d4000 x24: 1fffe0001bcf9def [ 88.071001][ T5619] x23: 1fffe0001bcf9def x22: ffff0000de7cef78 x21: 00000000fffffff4 [ 88.072333][ T5619] x20: 0000000000000051 x19: ffff0000de7cef20 x18: 0000000000000001 [ 88.073629][ T5619] x17: 0000000000000000 x16: ffff80001125f020 x15: 00000000ffffffff [ 88.074937][ T5619] x14: 0000000000000001 x13: 1fffe000341f05ab x12: 0000000000ff0100 [ 88.076250][ T5619] x11: 0000000000000000 x10: 0000000000000000 x9 : 6c496bb81e2acd00 [ 88.077565][ T5619] x8 : 6c496bb81e2acd00 x7 : 0000000000000001 x6 : 0000000000000001 [ 88.078863][ T5619] x5 : ffff8000228170d8 x4 : ffff80001437f3e0 x3 : ffff800008509220 [ 88.080154][ T5619] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 88.081523][ T5619] Call trace: [ 88.082059][ T5619] btrfs_run_delayed_refs+0x3e4/0x458 [ 88.082937][ T5619] btrfs_commit_transaction+0x1e0/0x3078 [ 88.083903][ T5619] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 88.084770][ T5619] btrfs_ioctl+0x50c/0xa8c [ 88.085494][ T5619] __arm64_sys_ioctl+0x14c/0x1c8 [ 88.086330][ T5619] invoke_syscall+0x98/0x2b0 [ 88.087103][ T5619] el0_svc_common+0x138/0x258 [ 88.087873][ T5619] do_el0_svc+0x58/0x13c [ 88.088577][ T5619] el0_svc+0x78/0x1d0 [ 88.089200][ T5619] el0t_64_sync_handler+0xcc/0xe4 [ 88.090014][ T5619] el0t_64_sync+0x1a0/0x1a4 [ 88.090782][ T5619] irq event stamp: 78998 [ 88.091460][ T5619] hardirqs last enabled at (78997): [] __up_console_sem+0xb4/0xfc [ 88.093027][ T5619] hardirqs last disabled at (78998): [] el1_dbg+0x24/0x80 [ 88.094431][ T5619] softirqs last enabled at (78974): [] handle_softirqs+0xa40/0xbe4 [ 88.095930][ T5619] softirqs last disabled at (78943): [] __irq_exit_rcu+0x240/0x43c [ 88.097476][ T5619] ---[ end trace 28ba6f7054f9b136 ]--- [ 88.098811][ T5619] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 88.100311][ T5619] BTRFS info (device loop0): forced readonly [ 88.331379][ T5641] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.46 (5641) [ 88.335821][ T5641] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 88.337683][ T5641] BTRFS info (device loop0): using free space tree [ 88.338778][ T5641] BTRFS info (device loop0): has skinny extents [ 88.345644][ T5641] BTRFS info (device loop0): enabling ssd optimizations [ 88.349352][ T5641] FAULT_INJECTION: forcing a failure. [ 88.349352][ T5641] name failslab, interval 1, probability 0, space 0, times 0 [ 88.351307][ T5641] CPU: 1 PID: 5641 Comm: syz.0.46 Tainted: G W syzkaller #0 [ 88.352760][ T5641] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 88.354449][ T5641] Call trace: [ 88.354978][ T5641] dump_backtrace+0x0/0x458 [ 88.355768][ T5641] show_stack+0x2c/0x3c [ 88.356502][ T5641] __dump_stack+0x30/0x40 [ 88.357259][ T5641] dump_stack_lvl+0xf4/0x15c [ 88.357979][ T5641] dump_stack+0x1c/0x5c [ 88.358679][ T5641] should_fail+0x3bc/0x514 [ 88.359529][ T5641] __should_failslab+0xbc/0x10c [ 88.360407][ T5641] should_failslab+0x10/0x28 [ 88.361188][ T5641] slab_pre_alloc_hook+0x64/0xe8 [ 88.362091][ T5641] kmem_cache_alloc+0x94/0x3d4 [ 88.362868][ T5641] btrfs_alloc_path+0x5c/0x68 [ 88.363622][ T5641] __btrfs_run_delayed_refs+0xe70/0x348c [ 88.364618][ T5641] btrfs_run_delayed_refs+0x124/0x458 [ 88.365490][ T5641] btrfs_commit_transaction+0x1e0/0x3078 [ 88.366484][ T5641] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 88.367391][ T5641] btrfs_ioctl+0x50c/0xa8c [ 88.368151][ T5641] __arm64_sys_ioctl+0x14c/0x1c8 [ 88.368975][ T5641] invoke_syscall+0x98/0x2b0 [ 88.369780][ T5641] el0_svc_common+0x138/0x258 [ 88.370587][ T5641] do_el0_svc+0x58/0x13c [ 88.371262][ T5641] el0_svc+0x78/0x1d0 [ 88.371876][ T5641] el0t_64_sync_handler+0xcc/0xe4 [ 88.372720][ T5641] el0t_64_sync+0x1a0/0x1a4 [ 88.375806][ T5641] BTRFS error (device loop0): failed to run delayed ref for logical 5242880 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 88.377981][ T5641] ------------[ cut here ]------------ [ 88.378902][ T5641] WARNING: CPU: 1 PID: 5641 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 88.380474][ T5641] Modules linked in: [ 88.381037][ T5641] CPU: 1 PID: 5641 Comm: syz.0.46 Tainted: G W syzkaller #0 [ 88.382359][ T5641] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 88.383835][ T5641] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 88.385063][ T5641] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 88.386033][ T5641] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 88.386975][ T5641] sp : ffff8000229177d0 [ 88.387638][ T5641] x29: ffff8000229177e0 x28: ffff0000c8c95000 x27: dfff800000000000 [ 88.389134][ T5641] x26: ffff0000c8c95024 x25: ffff0000c6298000 x24: 1fffe0001bcb5b81 [ 88.390508][ T5641] x23: 1fffe0001bcb5b81 x22: ffff0000de5adc08 x21: 00000000fffffff4 [ 88.391889][ T5641] x20: 0000000000000051 x19: ffff0000de5adbb0 x18: 0000000000000001 [ 88.393271][ T5641] x17: 0000000000000000 x16: ffff80001125f020 x15: 00000000ffffffff [ 88.394635][ T5641] x14: 0000000000000001 x13: 1fffe000341f47ab x12: 0000000000ff0100 [ 88.395943][ T5641] x11: 0000000000000000 x10: 0000000000000000 x9 : fbd3b27774d09800 [ 88.397214][ T5641] x8 : fbd3b27774d09800 x7 : 0000000000000001 x6 : 0000000000000001 [ 88.398515][ T5641] x5 : ffff8000229170d8 x4 : ffff80001437f3e0 x3 : ffff800008509220 [ 88.399898][ T5641] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 88.401258][ T5641] Call trace: [ 88.401808][ T5641] btrfs_run_delayed_refs+0x3e4/0x458 [ 88.402675][ T5641] btrfs_commit_transaction+0x1e0/0x3078 [ 88.403554][ T5641] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 88.404525][ T5641] btrfs_ioctl+0x50c/0xa8c [ 88.405266][ T5641] __arm64_sys_ioctl+0x14c/0x1c8 [ 88.406115][ T5641] invoke_syscall+0x98/0x2b0 [ 88.406951][ T5641] el0_svc_common+0x138/0x258 [ 88.407664][ T5641] do_el0_svc+0x58/0x13c [ 88.408393][ T5641] el0_svc+0x78/0x1d0 [ 88.409064][ T5641] el0t_64_sync_handler+0xcc/0xe4 [ 88.409883][ T5641] el0t_64_sync+0x1a0/0x1a4 [ 88.410732][ T5641] irq event stamp: 78892 [ 88.411466][ T5641] hardirqs last enabled at (78891): [] __up_console_sem+0xb4/0xfc [ 88.413162][ T5641] hardirqs last disabled at (78892): [] el1_dbg+0x24/0x80 [ 88.414648][ T5641] softirqs last enabled at (78870): [] handle_softirqs+0xa40/0xbe4 [ 88.416299][ T5641] softirqs last disabled at (78849): [] __irq_exit_rcu+0x240/0x43c [ 88.417903][ T5641] ---[ end trace 28ba6f7054f9b137 ]--- [ 88.421160][ T5641] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 88.422748][ T5641] BTRFS info (device loop0): forced readonly [ 88.618407][ T5663] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.47 (5663) [ 88.624527][ T5663] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 88.626153][ T5663] BTRFS info (device loop0): using free space tree [ 88.627717][ T5663] BTRFS info (device loop0): has skinny extents [ 88.635029][ T5663] BTRFS info (device loop0): enabling ssd optimizations [ 88.639157][ T5663] FAULT_INJECTION: forcing a failure. [ 88.639157][ T5663] name failslab, interval 1, probability 0, space 0, times 0 [ 88.641192][ T5663] CPU: 0 PID: 5663 Comm: syz.0.47 Tainted: G W syzkaller #0 [ 88.642551][ T5663] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 88.644191][ T5663] Call trace: [ 88.644679][ T5663] dump_backtrace+0x0/0x458 [ 88.645400][ T5663] show_stack+0x2c/0x3c [ 88.646122][ T5663] __dump_stack+0x30/0x40 [ 88.646855][ T5663] dump_stack_lvl+0xf4/0x15c [ 88.647665][ T5663] dump_stack+0x1c/0x5c [ 88.648392][ T5663] should_fail+0x3bc/0x514 [ 88.649132][ T5663] __should_failslab+0xbc/0x10c [ 88.649931][ T5663] should_failslab+0x10/0x28 [ 88.650638][ T5663] slab_pre_alloc_hook+0x64/0xe8 [ 88.651477][ T5663] kmem_cache_alloc+0x94/0x3d4 [ 88.652273][ T5663] btrfs_alloc_path+0x5c/0x68 [ 88.653064][ T5663] __btrfs_run_delayed_refs+0xe70/0x348c [ 88.654006][ T5663] btrfs_run_delayed_refs+0x124/0x458 [ 88.654933][ T5663] btrfs_commit_transaction+0x1e0/0x3078 [ 88.655975][ T5663] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 88.656923][ T5663] btrfs_ioctl+0x50c/0xa8c [ 88.657727][ T5663] __arm64_sys_ioctl+0x14c/0x1c8 [ 88.658504][ T5663] invoke_syscall+0x98/0x2b0 [ 88.659227][ T5663] el0_svc_common+0x138/0x258 [ 88.660025][ T5663] do_el0_svc+0x58/0x13c [ 88.660709][ T5663] el0_svc+0x78/0x1d0 [ 88.661344][ T5663] el0t_64_sync_handler+0xcc/0xe4 [ 88.662174][ T5663] el0t_64_sync+0x1a0/0x1a4 [ 88.663048][ T5663] BTRFS error (device loop0): failed to run delayed ref for logical 5242880 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 88.665223][ T5663] ------------[ cut here ]------------ [ 88.666207][ T5663] WARNING: CPU: 0 PID: 5663 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 88.667890][ T5663] Modules linked in: [ 88.668517][ T5663] CPU: 0 PID: 5663 Comm: syz.0.47 Tainted: G W syzkaller #0 [ 88.669957][ T5663] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 88.671634][ T5663] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 88.672967][ T5663] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 88.673967][ T5663] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 88.674869][ T5663] sp : ffff800022d477d0 [ 88.675584][ T5663] x29: ffff800022d477e0 x28: ffff0000cdaa1000 x27: dfff800000000000 [ 88.676953][ T5663] x26: ffff0000cdaa1024 x25: ffff0000dce54000 x24: 1fffe0001bcf9c8f [ 88.678330][ T5663] x23: 1fffe0001bcf9c8f x22: ffff0000de7ce478 x21: 00000000fffffff4 [ 88.679623][ T5663] x20: 0000000000000051 x19: ffff0000de7ce420 x18: 0000000000000001 [ 88.680996][ T5663] x17: 0000000000000000 x16: ffff80001125f020 x15: 00000000ffffffff [ 88.682347][ T5663] x14: 0000000000000001 x13: 1fffe000341f05ab x12: 0000000000ff0100 [ 88.683704][ T5663] x11: 0000000000000000 x10: 0000000000000000 x9 : 2d32b32bc14d6300 [ 88.685196][ T5663] x8 : 2d32b32bc14d6300 x7 : 0000000000000001 x6 : 0000000000000001 [ 88.686639][ T5663] x5 : ffff800022d470d8 x4 : ffff80001437f3e0 x3 : ffff800008509220 [ 88.687990][ T5663] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 88.689364][ T5663] Call trace: [ 88.689938][ T5663] btrfs_run_delayed_refs+0x3e4/0x458 [ 88.690856][ T5663] btrfs_commit_transaction+0x1e0/0x3078 [ 88.691896][ T5663] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 88.692776][ T5663] btrfs_ioctl+0x50c/0xa8c [ 88.693510][ T5663] __arm64_sys_ioctl+0x14c/0x1c8 [ 88.694340][ T5663] invoke_syscall+0x98/0x2b0 [ 88.695083][ T5663] el0_svc_common+0x138/0x258 [ 88.695818][ T5663] do_el0_svc+0x58/0x13c [ 88.696549][ T5663] el0_svc+0x78/0x1d0 [ 88.697242][ T5663] el0t_64_sync_handler+0xcc/0xe4 [ 88.698112][ T5663] el0t_64_sync+0x1a0/0x1a4 [ 88.698834][ T5663] irq event stamp: 78842 [ 88.699552][ T5663] hardirqs last enabled at (78841): [] __up_console_sem+0xb4/0xfc [ 88.701072][ T5663] hardirqs last disabled at (78842): [] el1_dbg+0x24/0x80 [ 88.702508][ T5663] softirqs last enabled at (78808): [] handle_softirqs+0xa40/0xbe4 [ 88.704108][ T5663] softirqs last disabled at (78795): [] __irq_exit_rcu+0x240/0x43c [ 88.705638][ T5663] ---[ end trace 28ba6f7054f9b138 ]--- [ 88.707275][ T5663] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 88.708835][ T5663] BTRFS info (device loop0): forced readonly [ 88.850481][ T5685] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz.0.48 (5685) [ 88.855387][ T5685] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm [ 88.856948][ T5685] BTRFS info (device loop0): using free space tree [ 88.858420][ T5685] BTRFS info (device loop0): has skinny extents [ 88.865239][ T5685] BTRFS info (device loop0): enabling ssd optimizations [ 88.868710][ T5685] FAULT_INJECTION: forcing a failure. [ 88.868710][ T5685] name failslab, interval 1, probability 0, space 0, times 0 [ 88.870858][ T5685] CPU: 1 PID: 5685 Comm: syz.0.48 Tainted: G W syzkaller #0 [ 88.872353][ T5685] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 88.874037][ T5685] Call trace: [ 88.874544][ T5685] dump_backtrace+0x0/0x458 [ 88.875273][ T5685] show_stack+0x2c/0x3c [ 88.875924][ T5685] __dump_stack+0x30/0x40 [ 88.876582][ T5685] dump_stack_lvl+0xf4/0x15c [ 88.877317][ T5685] dump_stack+0x1c/0x5c [ 88.877953][ T5685] should_fail+0x3bc/0x514 [ 88.878641][ T5685] __should_failslab+0xbc/0x10c [ 88.879409][ T5685] should_failslab+0x10/0x28 [ 88.880138][ T5685] slab_pre_alloc_hook+0x64/0xe8 [ 88.880963][ T5685] kmem_cache_alloc+0x94/0x3d4 [ 88.881781][ T5685] btrfs_alloc_path+0x5c/0x68 [ 88.882529][ T5685] __btrfs_run_delayed_refs+0xe70/0x348c [ 88.883445][ T5685] btrfs_run_delayed_refs+0x124/0x458 [ 88.884289][ T5685] btrfs_commit_transaction+0x1e0/0x3078 [ 88.885270][ T5685] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 88.886182][ T5685] btrfs_ioctl+0x50c/0xa8c [ 88.886958][ T5685] __arm64_sys_ioctl+0x14c/0x1c8 [ 88.887763][ T5685] invoke_syscall+0x98/0x2b0 [ 88.888483][ T5685] el0_svc_common+0x138/0x258 [ 88.889263][ T5685] do_el0_svc+0x58/0x13c [ 88.889926][ T5685] el0_svc+0x78/0x1d0 [ 88.890546][ T5685] el0t_64_sync_handler+0xcc/0xe4 [ 88.891293][ T5685] el0t_64_sync+0x1a0/0x1a4 [ 88.893683][ T5685] BTRFS error (device loop0): failed to run delayed ref for logical 5242880 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 88.895907][ T5685] ------------[ cut here ]------------ [ 88.896910][ T5685] WARNING: CPU: 1 PID: 5685 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 88.898687][ T5685] Modules linked in: [ 88.899336][ T5685] CPU: 1 PID: 5685 Comm: syz.0.48 Tainted: G W syzkaller #0 [ 88.900777][ T5685] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 88.902491][ T5685] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 88.903828][ T5685] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 88.904794][ T5685] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 88.905741][ T5685] sp : ffff800022d377d0 [ 88.906437][ T5685] x29: ffff800022d377e0 x28: ffff0000db94c000 x27: dfff800000000000 [ 88.907780][ T5685] x26: ffff0000db94c024 x25: ffff0000dce54000 x24: 1fffe0001bcb5b3f [ 88.909135][ T5685] x23: 1fffe0001bcb5b3f x22: ffff0000de5ad9f8 x21: 00000000fffffff4 [ 88.910593][ T5685] x20: 0000000000000051 x19: ffff0000de5ad9a0 x18: 0000000000000001 [ 88.912026][ T5685] x17: 0000000000000000 x16: ffff80001125f020 x15: 00000000ffffffff [ 88.913431][ T5685] x14: 0000000000000001 x13: 1fffe000341f47ab x12: 0000000000ff0100 [ 88.914816][ T5685] x11: 0000000000000000 x10: 0000000000000000 x9 : b79d7d67c8e22c00 [ 88.916254][ T5685] x8 : b79d7d67c8e22c00 x7 : 0000000000000001 x6 : 0000000000000001 [ 88.917482][ T5685] x5 : ffff800022d370d8 x4 : ffff80001437f3e0 x3 : ffff800008509220 [ 88.918696][ T5685] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 88.920002][ T5685] Call trace: [ 88.920548][ T5685] btrfs_run_delayed_refs+0x3e4/0x458 [ 88.921421][ T5685] btrfs_commit_transaction+0x1e0/0x3078 [ 88.922305][ T5685] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 88.923246][ T5685] btrfs_ioctl+0x50c/0xa8c [ 88.923969][ T5685] __arm64_sys_ioctl+0x14c/0x1c8 [ 88.924771][ T5685] invoke_syscall+0x98/0x2b0 [ 88.925501][ T5685] el0_svc_common+0x138/0x258 [ 88.926253][ T5685] do_el0_svc+0x58/0x13c [ 88.926919][ T5685] el0_svc+0x78/0x1d0 [ 88.927588][ T5685] el0t_64_sync_handler+0xcc/0xe4 [ 88.928386][ T5685] el0t_64_sync+0x1a0/0x1a4 [ 88.929095][ T5685] irq event stamp: 78856 [ 88.929775][ T5685] hardirqs last enabled at (78855): [] __up_console_sem+0xb4/0xfc [ 88.931378][ T5685] hardirqs last disabled at (78856): [] el1_dbg+0x24/0x80 [ 88.932821][ T5685] softirqs last enabled at (78822): [] handle_softirqs+0xa40/0xbe4 [ 88.934450][ T5685] softirqs last disabled at (78801): [] __irq_exit_rcu+0x240/0x43c [ 88.936018][ T5685] ---[ end trace 28ba6f7054f9b139 ]--- [ 88.939212][ T5685] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 88.940757][ T5685] BTRFS info (device loop0): forced readonly