[ 51.219492][ T530] device hsr_slave_0 left promiscuous mode [ 51.256818][ T530] device hsr_slave_1 left promiscuous mode [ 51.346596][ T530] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 51.347935][ T530] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 51.349989][ T530] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 51.351269][ T530] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 51.352728][ T530] device bridge_slave_1 left promiscuous mode [ 51.353998][ T530] bridge0: port 2(bridge_slave_1) entered disabled state [ 51.387862][ T530] device bridge_slave_0 left promiscuous mode [ 51.389016][ T530] bridge0: port 1(bridge_slave_0) entered disabled state [ 51.527315][ T530] device veth1_macvtap left promiscuous mode [ 51.528479][ T530] device veth0_macvtap left promiscuous mode [ 51.529492][ T530] device veth1_vlan left promiscuous mode [ 51.530497][ T530] device veth0_vlan left promiscuous mode [ 51.631402][ T530] team0 (unregistering): Port device team_slave_1 removed [ 51.635616][ T530] team0 (unregistering): Port device team_slave_0 removed [ 51.640277][ T530] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 51.690543][ T530] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 51.771166][ T530] bond0 (unregistering): Released all slaves [ 54.361672][ T530] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 54.399952][ T530] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 54.439524][ T530] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 54.479860][ T530] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 Warning: Permanently added '10.128.1.55' (ED25519) to the list of known hosts. 1970/01/01 00:00:56 parsed 1 programs [ 57.168466][ T4390] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SSFS [ 57.371096][ T530] device hsr_slave_0 left promiscuous mode [ 57.407367][ T530] device hsr_slave_1 left promiscuous mode [ 57.497615][ T530] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 57.499004][ T530] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 57.500604][ T530] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 57.501851][ T530] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 57.503390][ T530] device bridge_slave_1 left promiscuous mode [ 57.504432][ T530] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.547734][ T530] device bridge_slave_0 left promiscuous mode [ 57.548920][ T530] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.707182][ T530] device veth1_macvtap left promiscuous mode [ 57.708343][ T530] device veth0_macvtap left promiscuous mode [ 57.709364][ T530] device veth1_vlan left promiscuous mode [ 57.710450][ T530] device veth0_vlan left promiscuous mode [ 57.845880][ T530] team0 (unregistering): Port device team_slave_1 removed [ 57.850107][ T530] team0 (unregistering): Port device team_slave_0 removed [ 57.853978][ T530] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 57.900919][ T530] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 58.000643][ T530] bond0 (unregistering): Released all slaves [ 58.148651][ T4405] chnl_net:caif_netlink_parms(): no params data found [ 58.165777][ T4405] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.167320][ T4405] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.168887][ T4405] device bridge_slave_0 entered promiscuous mode [ 58.171001][ T4405] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.172292][ T4405] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.173798][ T4405] device bridge_slave_1 entered promiscuous mode [ 58.181768][ T4405] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.184749][ T4405] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.192838][ T4405] team0: Port device team_slave_0 added [ 58.194794][ T4405] team0: Port device team_slave_1 added [ 58.201897][ T4405] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 58.203190][ T4405] 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. [ 58.208050][ T4405] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 58.210434][ T4405] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 58.211665][ T4405] 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. [ 58.216128][ T4405] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 58.257682][ T4405] device hsr_slave_0 entered promiscuous mode [ 58.296684][ T4405] device hsr_slave_1 entered promiscuous mode [ 58.951006][ T4405] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 58.999030][ T4405] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 59.058250][ T4405] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 59.148291][ T4405] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 59.246580][ T4405] 8021q: adding VLAN 0 to HW filter on device bond0 [ 59.250348][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 59.251833][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 59.254294][ T4405] 8021q: adding VLAN 0 to HW filter on device team0 [ 59.262447][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 59.264145][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 59.265741][ T148] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.267036][ T148] bridge0: port 1(bridge_slave_0) entered forwarding state [ 59.269991][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 59.274381][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 59.276077][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 59.278010][ T148] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.279178][ T148] bridge0: port 2(bridge_slave_1) entered forwarding state [ 59.287182][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 59.289074][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 59.290841][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 59.293594][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 59.295264][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 59.305024][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 59.306694][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 59.308288][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 59.311761][ T4405] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 59.313801][ T4405] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 59.317056][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 59.318908][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 59.320383][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 59.381225][ T4405] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 59.387538][ T1620] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 59.388829][ T1620] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 59.391752][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 59.393472][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 59.406961][ T1620] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 59.408504][ T1620] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 59.410091][ T1620] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 59.411532][ T1620] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 59.414200][ T4405] device veth0_vlan entered promiscuous mode [ 59.419577][ T4405] device veth1_vlan entered promiscuous mode [ 59.441193][ T1620] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 59.442692][ T1620] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 59.444159][ T1620] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 59.445749][ T1620] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 59.449734][ T4405] device veth0_macvtap entered promiscuous mode [ 59.452546][ T4405] device veth1_macvtap entered promiscuous mode [ 59.460246][ T4405] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 59.461575][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 59.463084][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 59.464497][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 59.466083][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 59.471966][ T4405] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 59.474315][ T1620] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 59.476059][ T1620] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 59.478741][ T4405] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.480324][ T4405] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.482026][ T4405] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.483469][ T4405] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 60.244290][ T148] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 60.245703][ T148] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 60.253636][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 60.255859][ T1620] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 60.257831][ T1620] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 60.259261][ T1620] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 1970/01/01 00:01:00 executed programs: 0 [ 60.875769][ T4692] chnl_net:caif_netlink_parms(): no params data found [ 60.897512][ T4692] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.898843][ T4692] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.900431][ T4692] device bridge_slave_0 entered promiscuous mode [ 60.902841][ T4692] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.904093][ T4692] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.905732][ T4692] device bridge_slave_1 entered promiscuous mode [ 60.915405][ T4692] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.919403][ T4692] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.929316][ T4692] team0: Port device team_slave_0 added [ 60.931321][ T4692] team0: Port device team_slave_1 added [ 60.939838][ T4692] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 60.941012][ T4692] 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. [ 60.945274][ T4692] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 60.948325][ T4692] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 60.949537][ T4692] 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. [ 60.954176][ T4692] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 60.997897][ T4692] device hsr_slave_0 entered promiscuous mode [ 61.046763][ T4692] device hsr_slave_1 entered promiscuous mode [ 61.086535][ T4692] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 61.087915][ T4692] Cannot create hsr debugfs directory [ 61.115807][ T4692] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 62.826666][ T4180] Bluetooth: hci0: command 0x0409 tx timeout [ 64.190323][ T4692] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 64.840056][ T4692] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 64.890979][ T4692] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 64.906566][ T4179] Bluetooth: hci0: command 0x041b tx timeout [ 65.100075][ T4692] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 65.128221][ T4692] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 65.188284][ T4692] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 65.227675][ T4692] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 65.298290][ T4692] 8021q: adding VLAN 0 to HW filter on device bond0 [ 65.302177][ T1620] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 65.304022][ T1620] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 65.306983][ T4692] 8021q: adding VLAN 0 to HW filter on device team0 [ 65.309476][ T1620] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 65.311205][ T1620] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 65.312909][ T1620] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.314230][ T1620] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.315675][ T1620] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 65.319620][ T1620] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 65.321248][ T1620] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 65.322823][ T1620] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.324057][ T1620] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.326842][ T1620] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 65.329751][ T1620] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 65.332661][ T1620] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 65.334282][ T1620] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 65.335933][ T1620] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 65.340397][ T1620] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 65.342109][ T1620] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 65.344843][ T1620] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 65.346355][ T1620] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 65.350240][ T1620] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 65.351825][ T1620] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 65.354289][ T4692] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 65.391839][ T1620] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 65.393316][ T1620] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 65.396787][ T4692] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 65.403009][ T1620] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 65.404841][ T1620] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 65.412178][ T1620] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 65.413898][ T1620] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 65.415510][ T1620] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 65.417399][ T1620] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 65.419796][ T4692] device veth0_vlan entered promiscuous mode [ 65.423554][ T4692] device veth1_vlan entered promiscuous mode [ 65.431198][ T1620] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 65.432752][ T1620] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 65.434399][ T1620] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 65.436062][ T1620] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 65.458037][ T4692] device veth0_macvtap entered promiscuous mode [ 65.461037][ T4692] device veth1_macvtap entered promiscuous mode [ 65.465873][ T4692] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 65.468117][ T4692] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 65.470336][ T4692] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 65.471649][ T1620] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 65.473413][ T1620] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 65.474988][ T1620] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 65.476816][ T1620] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 65.479364][ T4692] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 65.481137][ T4692] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 65.483276][ T4692] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 65.484485][ T1620] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 65.486154][ T1620] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 65.489128][ T4692] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.490635][ T4692] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.492290][ T4692] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.493867][ T4692] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.532157][ T1620] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 65.534432][ T1620] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 65.536464][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 65.551613][ T1620] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 65.552883][ T1620] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 65.554308][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 65.677380][ T4737] loop0: detected capacity change from 0 to 32768 [ 65.682796][ T4737] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.16 (4737) [ 65.699105][ T4737] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 65.700611][ T4737] BTRFS info (device loop0): enabling auto defrag [ 65.701695][ T4737] BTRFS info (device loop0): enabling ssd optimizations [ 65.702980][ T4737] BTRFS info (device loop0): using spread ssd allocation scheme [ 65.704249][ T4737] BTRFS info (device loop0): max_inline at 0 [ 65.705311][ T4737] BTRFS info (device loop0): force clearing of disk cache [ 65.708999][ T4737] BTRFS info (device loop0): turning on sync discard [ 65.710245][ T4737] BTRFS info (device loop0): disabling free space tree [ 65.711462][ T4737] BTRFS info (device loop0): has skinny extents [ 65.722433][ T4737] BTRFS info (device loop0): clearing free space tree [ 65.723934][ T4737] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 65.725637][ T4737] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 65.741060][ T4737] FAULT_INJECTION: forcing a failure. [ 65.741060][ T4737] name failslab, interval 1, probability 0, space 0, times 1 [ 65.743179][ T4737] CPU: 1 PID: 4737 Comm: syz.0.16 Not tainted syzkaller #0 [ 65.744317][ T4737] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 65.745963][ T4737] Call trace: [ 65.746470][ T4737] dump_backtrace+0x0/0x458 [ 65.747353][ T4737] show_stack+0x2c/0x3c [ 65.748112][ T4737] __dump_stack+0x30/0x40 [ 65.748810][ T4737] dump_stack_lvl+0xf4/0x15c [ 65.749616][ T4737] dump_stack+0x1c/0x5c [ 65.750356][ T4737] should_fail+0x3c8/0x520 [ 65.751165][ T4737] __should_failslab+0xbc/0x10c [ 65.752087][ T4737] should_failslab+0x10/0x28 [ 65.752931][ T4737] slab_pre_alloc_hook+0x64/0xe8 [ 65.753800][ T4737] kmem_cache_alloc+0x94/0x3d8 [ 65.754632][ T4737] btrfs_alloc_path+0x5c/0x68 [ 65.755418][ T4737] __btrfs_free_extent+0x1a4/0x1ae0 [ 65.756280][ T4737] __btrfs_run_delayed_refs+0xc00/0x3484 [ 65.757257][ T4737] btrfs_run_delayed_refs+0x11c/0x460 [ 65.758118][ T4737] btrfs_commit_transaction+0x1d8/0x30ac [ 65.759069][ T4737] btrfs_ioctl_set_fslabel+0x2f8/0x3c8 [ 65.760050][ T4737] btrfs_ioctl+0x50c/0xa8c [ 65.760776][ T4737] __arm64_sys_ioctl+0x14c/0x1c8 [ 65.761622][ T4737] invoke_syscall+0x98/0x28c [ 65.762410][ T4737] el0_svc_common+0x13c/0x258 [ 65.763180][ T4737] do_el0_svc+0x5c/0x140 [ 65.763892][ T4737] el0_svc+0x78/0x1d0 [ 65.764555][ T4737] el0t_64_sync_handler+0xcc/0xe4 [ 65.765441][ T4737] el0t_64_sync+0x1a0/0x1a4 [ 65.768527][ T4737] BTRFS error (device loop0): failed to run delayed ref for logical 5255168 num_bytes 4096 type 176 action 2 ref_mod 1: -12 [ 65.770860][ T4737] ------------[ cut here ]------------ [ 65.771823][ T4737] WARNING: CPU: 0 PID: 4737 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e8/0x460 [ 65.773393][ T4737] Modules linked in: [ 65.774076][ T4737] CPU: 0 PID: 4737 Comm: syz.0.16 Not tainted syzkaller #0 [ 65.775247][ T4737] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 65.776948][ T4737] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 65.778251][ T4737] pc : btrfs_run_delayed_refs+0x3e8/0x460 [ 65.779174][ T4737] lr : btrfs_run_delayed_refs+0x3e8/0x460 [ 65.780130][ T4737] sp : ffff80001fe677d0 [ 65.780860][ T4737] x29: ffff80001fe677e0 x28: ffff0000edcce000 x27: dfff800000000000 [ 65.782232][ T4737] x26: dfff800000000000 x25: ffff0000deede160 x24: 1fffe0001bddbc37 [ 65.783573][ T4737] x23: ffff0000deede1b8 x22: 00000000fffffff4 x21: 0000000000000000 [ 65.784966][ T4737] x20: 00000000fffffff4 x19: ffff0000deede160 x18: 0000000000000000 [ 65.786356][ T4737] x17: 0000000000000000 x16: ffff80001134e478 x15: 0000000000000000 [ 65.787870][ T4737] x14: 0000000000000001 x13: 1fffe000341cebab x12: 0000000000000000 [ 65.789250][ T4737] x11: ff8080000830061c x10: 0000000000000000 x9 : 5eeef751d3f34e00 [ 65.790573][ T4737] x8 : 5eeef751d3f34e00 x7 : 0000000000000001 x6 : 0000000000000001 [ 65.791950][ T4737] x5 : ffff80001fe670d8 x4 : ffff80001446f500 x3 : ffff80000850f688 [ 65.793379][ T4737] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 65.794843][ T4737] Call trace: [ 65.795406][ T4737] btrfs_run_delayed_refs+0x3e8/0x460 [ 65.796379][ T4737] btrfs_commit_transaction+0x1d8/0x30ac [ 65.797389][ T4737] btrfs_ioctl_set_fslabel+0x2f8/0x3c8 [ 65.798345][ T4737] btrfs_ioctl+0x50c/0xa8c [ 65.799136][ T4737] __arm64_sys_ioctl+0x14c/0x1c8 [ 65.800047][ T4737] invoke_syscall+0x98/0x28c [ 65.800859][ T4737] el0_svc_common+0x13c/0x258 [ 65.801697][ T4737] do_el0_svc+0x5c/0x140 [ 65.802429][ T4737] el0_svc+0x78/0x1d0 [ 65.803133][ T4737] el0t_64_sync_handler+0xcc/0xe4 [ 65.804034][ T4737] el0t_64_sync+0x1a0/0x1a4 [ 65.804809][ T4737] irq event stamp: 82218 [ 65.805529][ T4737] hardirqs last enabled at (82217): [] __up_console_sem+0xb4/0xfc [ 65.807131][ T4737] hardirqs last disabled at (82218): [] el1_dbg+0x24/0x80 [ 65.808774][ T4737] softirqs last enabled at (82184): [] handle_softirqs+0xa70/0xc14 [ 65.810384][ T4737] softirqs last disabled at (82141): [] __irq_exit_rcu+0x240/0x434 [ 65.811996][ T4737] ---[ end trace 2bc8cb018f005b29 ]--- [ 65.814419][ T4737] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 65.816060][ T4737] BTRFS info (device loop0): forced readonly 1970/01/01 00:01:05 executed programs: 3 [ 66.000890][ T4759] loop0: detected capacity change from 0 to 32768 [ 66.049962][ T4759] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.17 (4759) [ 66.056849][ T4759] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 66.058228][ T4759] BTRFS info (device loop0): enabling auto defrag [ 66.059247][ T4759] BTRFS info (device loop0): enabling ssd optimizations [ 66.060339][ T4759] BTRFS info (device loop0): using spread ssd allocation scheme [ 66.061671][ T4759] BTRFS info (device loop0): max_inline at 0 [ 66.062848][ T4759] BTRFS info (device loop0): force clearing of disk cache [ 66.064092][ T4759] BTRFS info (device loop0): turning on sync discard [ 66.065348][ T4759] BTRFS info (device loop0): disabling free space tree [ 66.066638][ T4759] BTRFS info (device loop0): has skinny extents [ 66.075007][ T4759] BTRFS info (device loop0): clearing free space tree [ 66.076211][ T4759] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 66.077969][ T4759] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 66.083300][ T4759] FAULT_INJECTION: forcing a failure. [ 66.083300][ T4759] name failslab, interval 1, probability 0, space 0, times 0 [ 66.085555][ T4759] CPU: 1 PID: 4759 Comm: syz.0.17 Tainted: G W syzkaller #0 [ 66.086999][ T4759] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 66.088739][ T4759] Call trace: [ 66.089335][ T4759] dump_backtrace+0x0/0x458 [ 66.090092][ T4759] show_stack+0x2c/0x3c [ 66.090771][ T4759] __dump_stack+0x30/0x40 [ 66.091511][ T4759] dump_stack_lvl+0xf4/0x15c [ 66.092227][ T4759] dump_stack+0x1c/0x5c [ 66.092931][ T4759] should_fail+0x3c8/0x520 [ 66.093702][ T4759] __should_failslab+0xbc/0x10c [ 66.094625][ T4759] should_failslab+0x10/0x28 [ 66.095473][ T4759] slab_pre_alloc_hook+0x64/0xe8 [ 66.096313][ T4759] kmem_cache_alloc+0x94/0x3d8 [ 66.097195][ T4759] start_transaction+0x530/0x1438 [ 66.098156][ T4759] btrfs_start_transaction+0x34/0x44 [ 66.099015][ T4759] btrfs_ioctl_set_fslabel+0x2bc/0x3c8 [ 66.099999][ T4759] btrfs_ioctl+0x50c/0xa8c [ 66.100753][ T4759] __arm64_sys_ioctl+0x14c/0x1c8 [ 66.101554][ T4759] invoke_syscall+0x98/0x28c [ 66.102325][ T4759] el0_svc_common+0x13c/0x258 [ 66.103066][ T4759] do_el0_svc+0x5c/0x140 [ 66.103759][ T4759] el0_svc+0x78/0x1d0 [ 66.104432][ T4759] el0t_64_sync_handler+0xcc/0xe4 [ 66.105273][ T4759] el0t_64_sync+0x1a0/0x1a4 [ 66.255264][ T4781] loop0: detected capacity change from 0 to 32768 [ 66.299147][ T4781] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.18 (4781) [ 66.302754][ T4781] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 66.304143][ T4781] BTRFS info (device loop0): enabling auto defrag [ 66.305213][ T4781] BTRFS info (device loop0): enabling ssd optimizations [ 66.306368][ T4781] BTRFS info (device loop0): using spread ssd allocation scheme [ 66.308798][ T4781] BTRFS info (device loop0): max_inline at 0 [ 66.309893][ T4781] BTRFS info (device loop0): force clearing of disk cache [ 66.311063][ T4781] BTRFS info (device loop0): turning on sync discard [ 66.312268][ T4781] BTRFS info (device loop0): disabling free space tree [ 66.313344][ T4781] BTRFS info (device loop0): has skinny extents [ 66.340601][ T4781] BTRFS info (device loop0): clearing free space tree [ 66.341842][ T4781] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 66.343579][ T4781] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 66.351069][ T4781] FAULT_INJECTION: forcing a failure. [ 66.351069][ T4781] name failslab, interval 1, probability 0, space 0, times 0 [ 66.353120][ T4781] CPU: 1 PID: 4781 Comm: syz.0.18 Tainted: G W syzkaller #0 [ 66.354458][ T4781] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 66.356166][ T4781] Call trace: [ 66.356728][ T4781] dump_backtrace+0x0/0x458 [ 66.357558][ T4781] show_stack+0x2c/0x3c [ 66.358323][ T4781] __dump_stack+0x30/0x40 [ 66.359055][ T4781] dump_stack_lvl+0xf4/0x15c [ 66.359810][ T4781] dump_stack+0x1c/0x5c [ 66.360492][ T4781] should_fail+0x3c8/0x520 [ 66.361202][ T4781] __should_failslab+0xbc/0x10c [ 66.362064][ T4781] should_failslab+0x10/0x28 [ 66.362858][ T4781] slab_pre_alloc_hook+0x64/0xe8 [ 66.363694][ T4781] kmem_cache_alloc+0x94/0x3d8 [ 66.364448][ T4781] btrfs_alloc_path+0x5c/0x68 [ 66.365198][ T4781] __btrfs_free_extent+0x1a4/0x1ae0 [ 66.366092][ T4781] __btrfs_run_delayed_refs+0xc00/0x3484 [ 66.367042][ T4781] btrfs_run_delayed_refs+0x11c/0x460 [ 66.368030][ T4781] btrfs_commit_transaction+0x1d8/0x30ac [ 66.369075][ T4781] btrfs_ioctl_set_fslabel+0x2f8/0x3c8 [ 66.370089][ T4781] btrfs_ioctl+0x50c/0xa8c [ 66.370911][ T4781] __arm64_sys_ioctl+0x14c/0x1c8 [ 66.371805][ T4781] invoke_syscall+0x98/0x28c [ 66.372627][ T4781] el0_svc_common+0x13c/0x258 [ 66.373432][ T4781] do_el0_svc+0x5c/0x140 [ 66.374192][ T4781] el0_svc+0x78/0x1d0 [ 66.374873][ T4781] el0t_64_sync_handler+0xcc/0xe4 [ 66.375717][ T4781] el0t_64_sync+0x1a0/0x1a4 [ 66.377975][ T4781] BTRFS error (device loop0): failed to run delayed ref for logical 5255168 num_bytes 4096 type 176 action 2 ref_mod 1: -12 [ 66.380255][ T4781] ------------[ cut here ]------------ [ 66.381337][ T4781] WARNING: CPU: 1 PID: 4781 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e8/0x460 [ 66.383265][ T4781] Modules linked in: [ 66.383997][ T4781] CPU: 1 PID: 4781 Comm: syz.0.18 Tainted: G W syzkaller #0 [ 66.385546][ T4781] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 66.387221][ T4781] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 66.388484][ T4781] pc : btrfs_run_delayed_refs+0x3e8/0x460 [ 66.389450][ T4781] lr : btrfs_run_delayed_refs+0x3e8/0x460 [ 66.390431][ T4781] sp : ffff80001ff877d0 [ 66.391139][ T4781] x29: ffff80001ff877e0 x28: ffff0000dc06a000 x27: dfff800000000000 [ 66.392541][ T4781] x26: dfff800000000000 x25: ffff0000deede4d0 x24: 1fffe0001bddbca5 [ 66.393954][ T4781] x23: ffff0000deede528 x22: 00000000fffffff4 x21: 0000000000000000 [ 66.395254][ T4781] x20: 00000000fffffff4 x19: ffff0000deede4d0 x18: 0000000000000000 [ 66.396577][ T4781] x17: 0000000000000000 x16: ffff80001134e478 x15: 0000000000000000 [ 66.397979][ T4781] x14: 0000000000000001 x13: 1fffe000341d2dab x12: 0000000000000000 [ 66.399444][ T4781] x11: ff8080000830061c x10: 0000000000000000 x9 : 5294f81a75cf5600 [ 66.400908][ T4781] x8 : 5294f81a75cf5600 x7 : 0000000000000001 x6 : 0000000000000001 [ 66.402327][ T4781] x5 : ffff80001ff870d8 x4 : ffff80001446f500 x3 : ffff80000850f688 [ 66.403725][ T4781] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 66.405106][ T4781] Call trace: [ 66.405677][ T4781] btrfs_run_delayed_refs+0x3e8/0x460 [ 66.406574][ T4781] btrfs_commit_transaction+0x1d8/0x30ac [ 66.407509][ T4781] btrfs_ioctl_set_fslabel+0x2f8/0x3c8 [ 66.408522][ T4781] btrfs_ioctl+0x50c/0xa8c [ 66.409425][ T4781] __arm64_sys_ioctl+0x14c/0x1c8 [ 66.410435][ T4781] invoke_syscall+0x98/0x28c [ 66.411381][ T4781] el0_svc_common+0x13c/0x258 [ 66.412337][ T4781] do_el0_svc+0x5c/0x140 [ 66.413135][ T4781] el0_svc+0x78/0x1d0 [ 66.413806][ T4781] el0t_64_sync_handler+0xcc/0xe4 [ 66.414679][ T4781] el0t_64_sync+0x1a0/0x1a4 [ 66.415442][ T4781] irq event stamp: 80410 [ 66.416198][ T4781] hardirqs last enabled at (80409): [] __up_console_sem+0xb4/0xfc [ 66.417864][ T4781] hardirqs last disabled at (80410): [] el1_dbg+0x24/0x80 [ 66.419436][ T4781] softirqs last enabled at (80374): [] handle_softirqs+0xa70/0xc14 [ 66.421385][ T4781] softirqs last disabled at (80317): [] __irq_exit_rcu+0x240/0x434 [ 66.423095][ T4781] ---[ end trace 2bc8cb018f005b2a ]--- [ 66.424660][ T4781] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 66.426363][ T4781] BTRFS info (device loop0): forced readonly [ 66.610635][ T4803] loop0: detected capacity change from 0 to 32768 [ 66.662958][ T4803] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.19 (4803) [ 66.668682][ T4803] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 66.670231][ T4803] BTRFS info (device loop0): enabling auto defrag [ 66.671389][ T4803] BTRFS info (device loop0): enabling ssd optimizations [ 66.672531][ T4803] BTRFS info (device loop0): using spread ssd allocation scheme [ 66.673785][ T4803] BTRFS info (device loop0): max_inline at 0 [ 66.674774][ T4803] BTRFS info (device loop0): force clearing of disk cache [ 66.676162][ T4803] BTRFS info (device loop0): turning on sync discard [ 66.678031][ T4803] BTRFS info (device loop0): disabling free space tree [ 66.679209][ T4803] BTRFS info (device loop0): has skinny extents [ 66.687576][ T4803] BTRFS info (device loop0): clearing free space tree [ 66.688798][ T4803] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 66.690655][ T4803] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 66.697967][ T4803] FAULT_INJECTION: forcing a failure. [ 66.697967][ T4803] name failslab, interval 1, probability 0, space 0, times 0 [ 66.700024][ T4803] CPU: 1 PID: 4803 Comm: syz.0.19 Tainted: G W syzkaller #0 [ 66.701415][ T4803] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 66.703097][ T4803] Call trace: [ 66.703644][ T4803] dump_backtrace+0x0/0x458 [ 66.704435][ T4803] show_stack+0x2c/0x3c [ 66.705121][ T4803] __dump_stack+0x30/0x40 [ 66.705860][ T4803] dump_stack_lvl+0xf4/0x15c [ 66.706596][ T4803] dump_stack+0x1c/0x5c [ 66.707374][ T4803] should_fail+0x3c8/0x520 [ 66.708127][ T4803] __should_failslab+0xbc/0x10c [ 66.708996][ T4803] should_failslab+0x10/0x28 [ 66.709793][ T4803] slab_pre_alloc_hook+0x64/0xe8 [ 66.710609][ T4803] kmem_cache_alloc+0x94/0x3d8 [ 66.711492][ T4803] start_transaction+0x530/0x1438 [ 66.712555][ T4803] btrfs_start_transaction+0x34/0x44 [ 66.713665][ T4803] btrfs_ioctl_set_fslabel+0x2bc/0x3c8 [ 66.714755][ T4803] btrfs_ioctl+0x50c/0xa8c [ 66.715634][ T4803] __arm64_sys_ioctl+0x14c/0x1c8 [ 66.716545][ T4803] invoke_syscall+0x98/0x28c [ 66.717333][ T4803] el0_svc_common+0x13c/0x258 [ 66.718165][ T4803] do_el0_svc+0x5c/0x140 [ 66.718970][ T4803] el0_svc+0x78/0x1d0 [ 66.719701][ T4803] el0t_64_sync_handler+0xcc/0xe4 [ 66.720583][ T4803] el0t_64_sync+0x1a0/0x1a4 [ 66.867728][ T4825] loop0: detected capacity change from 0 to 32768 [ 66.872836][ T4825] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.20 (4825) [ 66.876058][ T4825] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 66.878166][ T4825] BTRFS info (device loop0): enabling auto defrag [ 66.879330][ T4825] BTRFS info (device loop0): enabling ssd optimizations [ 66.880629][ T4825] BTRFS info (device loop0): using spread ssd allocation scheme [ 66.881941][ T4825] BTRFS info (device loop0): max_inline at 0 [ 66.883051][ T4825] BTRFS info (device loop0): force clearing of disk cache [ 66.884253][ T4825] BTRFS info (device loop0): turning on sync discard [ 66.885420][ T4825] BTRFS info (device loop0): disabling free space tree [ 66.886447][ T4825] BTRFS info (device loop0): has skinny extents [ 66.894369][ T4825] BTRFS info (device loop0): clearing free space tree [ 66.895549][ T4825] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 66.897407][ T4825] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 66.902945][ T4825] FAULT_INJECTION: forcing a failure. [ 66.902945][ T4825] name failslab, interval 1, probability 0, space 0, times 0 [ 66.905049][ T4825] CPU: 0 PID: 4825 Comm: syz.0.20 Tainted: G W syzkaller #0 [ 66.906439][ T4825] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 66.908203][ T4825] Call trace: [ 66.908891][ T4825] dump_backtrace+0x0/0x458 [ 66.909754][ T4825] show_stack+0x2c/0x3c [ 66.910542][ T4825] __dump_stack+0x30/0x40 [ 66.911354][ T4825] dump_stack_lvl+0xf4/0x15c [ 66.912194][ T4825] dump_stack+0x1c/0x5c [ 66.912935][ T4825] should_fail+0x3c8/0x520 [ 66.913736][ T4825] __should_failslab+0xbc/0x10c [ 66.914612][ T4825] should_failslab+0x10/0x28 [ 66.915478][ T4825] slab_pre_alloc_hook+0x64/0xe8 [ 66.916310][ T4825] kmem_cache_alloc+0x94/0x3d8 [ 66.917143][ T4825] btrfs_alloc_path+0x5c/0x68 [ 66.917971][ T4825] __btrfs_run_delayed_refs+0xe6c/0x3484 [ 66.918903][ T4825] btrfs_run_delayed_refs+0x11c/0x460 [ 66.919894][ T4825] btrfs_commit_transaction+0x1d8/0x30ac [ 66.920940][ T4825] btrfs_ioctl_set_fslabel+0x2f8/0x3c8 [ 66.922010][ T4825] btrfs_ioctl+0x50c/0xa8c [ 66.922853][ T4825] __arm64_sys_ioctl+0x14c/0x1c8 [ 66.923722][ T4825] invoke_syscall+0x98/0x28c [ 66.924512][ T4825] el0_svc_common+0x13c/0x258 [ 66.925327][ T4825] do_el0_svc+0x5c/0x140 [ 66.926075][ T4825] el0_svc+0x78/0x1d0 [ 66.926777][ T4825] el0t_64_sync_handler+0xcc/0xe4 [ 66.927686][ T4825] el0t_64_sync+0x1a0/0x1a4 [ 66.930002][ T4825] BTRFS error (device loop0): failed to run delayed ref for logical 5251072 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 66.932073][ T4825] ------------[ cut here ]------------ [ 66.933114][ T4825] WARNING: CPU: 0 PID: 4825 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e8/0x460 [ 66.934674][ T4825] Modules linked in: [ 66.935277][ T4825] CPU: 0 PID: 4825 Comm: syz.0.20 Tainted: G W syzkaller #0 [ 66.936664][ T4825] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 66.938415][ T4825] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 66.939721][ T4825] pc : btrfs_run_delayed_refs+0x3e8/0x460 [ 66.940692][ T4825] lr : btrfs_run_delayed_refs+0x3e8/0x460 [ 66.941647][ T4825] sp : ffff8000202d77d0 [ 66.942383][ T4825] x29: ffff8000202d77e0 x28: ffff0000edecb000 x27: dfff800000000000 [ 66.943733][ T4825] x26: dfff800000000000 x25: ffff0000deeda2c0 x24: 1fffe0001bddb463 [ 66.945156][ T4825] x23: ffff0000deeda318 x22: 00000000fffffff4 x21: 0000000000000000 [ 66.946510][ T4825] x20: 00000000fffffff4 x19: ffff0000deeda2c0 x18: 0000000000000000 [ 66.947865][ T4825] x17: 0000000000000000 x16: ffff80001134e478 x15: 0000000000000000 [ 66.949236][ T4825] x14: 0000000000000001 x13: 1fffe000341cebab x12: 0000000000000000 [ 66.950614][ T4825] x11: ff8080000830061c x10: 0000000000000000 x9 : 0609e123e5e03000 [ 66.952100][ T4825] x8 : 0609e123e5e03000 x7 : 0000000000000001 x6 : 0000000000000001 [ 66.953539][ T4825] x5 : ffff8000202d70d8 x4 : ffff80001446f500 x3 : ffff80000850f688 [ 66.954998][ T4825] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 66.956357][ T4825] Call trace: [ 66.956911][ T4825] btrfs_run_delayed_refs+0x3e8/0x460 [ 66.957798][ T4825] btrfs_commit_transaction+0x1d8/0x30ac [ 66.958808][ T4825] btrfs_ioctl_set_fslabel+0x2f8/0x3c8 [ 66.959772][ T4825] btrfs_ioctl+0x50c/0xa8c [ 66.960589][ T4825] __arm64_sys_ioctl+0x14c/0x1c8 [ 66.961437][ T4825] invoke_syscall+0x98/0x28c [ 66.962272][ T4825] el0_svc_common+0x13c/0x258 [ 66.963155][ T4825] do_el0_svc+0x5c/0x140 [ 66.963988][ T4825] el0_svc+0x78/0x1d0 [ 66.964678][ T4825] el0t_64_sync_handler+0xcc/0xe4 [ 66.965576][ T4825] el0t_64_sync+0x1a0/0x1a4 [ 66.966360][ T4825] irq event stamp: 80286 [ 66.967106][ T4825] hardirqs last enabled at (80285): [] __up_console_sem+0xb4/0xfc [ 66.968813][ T4825] hardirqs last disabled at (80286): [] el1_dbg+0x24/0x80 [ 66.970206][ T4825] softirqs last enabled at (80248): [] handle_softirqs+0xa70/0xc14 [ 66.971740][ T4825] softirqs last disabled at (80221): [] __irq_exit_rcu+0x240/0x434 [ 66.973409][ T4825] ---[ end trace 2bc8cb018f005b2b ]--- [ 66.975657][ T4825] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 66.977360][ T4825] BTRFS info (device loop0): forced readonly [ 66.986796][ T4175] Bluetooth: hci0: command 0x040f tx timeout [ 67.152095][ T4847] loop0: detected capacity change from 0 to 32768 [ 67.207827][ T4847] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.21 (4847) [ 67.211600][ T4847] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 67.213103][ T4847] BTRFS info (device loop0): enabling auto defrag [ 67.214067][ T4847] BTRFS info (device loop0): enabling ssd optimizations [ 67.215212][ T4847] BTRFS info (device loop0): using spread ssd allocation scheme [ 67.216713][ T4847] BTRFS info (device loop0): max_inline at 0 [ 67.217785][ T4847] BTRFS info (device loop0): force clearing of disk cache [ 67.219043][ T4847] BTRFS info (device loop0): turning on sync discard [ 67.220174][ T4847] BTRFS info (device loop0): disabling free space tree [ 67.221286][ T4847] BTRFS info (device loop0): has skinny extents [ 67.230532][ T4847] BTRFS info (device loop0): clearing free space tree [ 67.231705][ T4847] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 67.233284][ T4847] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 67.242238][ T4847] FAULT_INJECTION: forcing a failure. [ 67.242238][ T4847] name failslab, interval 1, probability 0, space 0, times 0 [ 67.244430][ T4847] CPU: 0 PID: 4847 Comm: syz.0.21 Tainted: G W syzkaller #0 [ 67.245942][ T4847] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 67.247949][ T4847] Call trace: [ 67.248639][ T4847] dump_backtrace+0x0/0x458 [ 67.249472][ T4847] show_stack+0x2c/0x3c [ 67.250254][ T4847] __dump_stack+0x30/0x40 [ 67.251028][ T4847] dump_stack_lvl+0xf4/0x15c [ 67.251849][ T4847] dump_stack+0x1c/0x5c [ 67.252576][ T4847] should_fail+0x3c8/0x520 [ 67.253379][ T4847] __should_failslab+0xbc/0x10c [ 67.254352][ T4847] should_failslab+0x10/0x28 [ 67.255352][ T4847] slab_pre_alloc_hook+0x64/0xe8 [ 67.256205][ T4847] kmem_cache_alloc+0x94/0x3d8 [ 67.257025][ T4847] btrfs_alloc_path+0x5c/0x68 [ 67.257842][ T4847] __btrfs_free_extent+0x1a4/0x1ae0 [ 67.258771][ T4847] __btrfs_run_delayed_refs+0xc00/0x3484 [ 67.259811][ T4847] btrfs_run_delayed_refs+0x11c/0x460 [ 67.260747][ T4847] btrfs_commit_transaction+0x1d8/0x30ac [ 67.261734][ T4847] btrfs_ioctl_set_fslabel+0x2f8/0x3c8 [ 67.262717][ T4847] btrfs_ioctl+0x50c/0xa8c [ 67.263485][ T4847] __arm64_sys_ioctl+0x14c/0x1c8 [ 67.264427][ T4847] invoke_syscall+0x98/0x28c [ 67.265251][ T4847] el0_svc_common+0x13c/0x258 [ 67.266103][ T4847] do_el0_svc+0x5c/0x140 [ 67.266852][ T4847] el0_svc+0x78/0x1d0 [ 67.267564][ T4847] el0t_64_sync_handler+0xcc/0xe4 [ 67.268432][ T4847] el0t_64_sync+0x1a0/0x1a4 [ 67.271731][ T4847] BTRFS error (device loop0): failed to run delayed ref for logical 5255168 num_bytes 4096 type 176 action 2 ref_mod 1: -12 [ 67.273975][ T4847] ------------[ cut here ]------------ [ 67.275064][ T4847] WARNING: CPU: 1 PID: 4847 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e8/0x460 [ 67.276898][ T4847] Modules linked in: [ 67.277651][ T4847] CPU: 1 PID: 4847 Comm: syz.0.21 Tainted: G W syzkaller #0 [ 67.279410][ T4847] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 67.281353][ T4847] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 67.282771][ T4847] pc : btrfs_run_delayed_refs+0x3e8/0x460 [ 67.283849][ T4847] lr : btrfs_run_delayed_refs+0x3e8/0x460 [ 67.284959][ T4847] sp : ffff8000202d77d0 [ 67.285736][ T4847] x29: ffff8000202d77e0 x28: ffff0000dc0f5000 x27: dfff800000000000 [ 67.287132][ T4847] x26: dfff800000000000 x25: ffff0000deeda420 x24: 1fffe0001bddb48f [ 67.288616][ T4847] x23: ffff0000deeda478 x22: 00000000fffffff4 x21: 0000000000000000 [ 67.290025][ T4847] x20: 00000000fffffff4 x19: ffff0000deeda420 x18: 0000000000000000 [ 67.291411][ T4847] x17: 0000000000000000 x16: ffff80001134e478 x15: 0000000000000000 [ 67.292792][ T4847] x14: 0000000000000001 x13: 1fffe000341d2dab x12: 0000000000000000 [ 67.294185][ T4847] x11: ff8080000830061c x10: 0000000000000000 x9 : 65ca1ae5151ad900 [ 67.295597][ T4847] x8 : 65ca1ae5151ad900 x7 : 0000000000000001 x6 : 0000000000000001 [ 67.297051][ T4847] x5 : ffff8000202d70d8 x4 : ffff80001446f500 x3 : ffff80000850f688 [ 67.298470][ T4847] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 67.299876][ T4847] Call trace: [ 67.300435][ T4847] btrfs_run_delayed_refs+0x3e8/0x460 [ 67.301384][ T4847] btrfs_commit_transaction+0x1d8/0x30ac [ 67.302319][ T4847] btrfs_ioctl_set_fslabel+0x2f8/0x3c8 [ 67.303287][ T4847] btrfs_ioctl+0x50c/0xa8c [ 67.304012][ T4847] __arm64_sys_ioctl+0x14c/0x1c8 [ 67.304868][ T4847] invoke_syscall+0x98/0x28c [ 67.305681][ T4847] el0_svc_common+0x13c/0x258 [ 67.306536][ T4847] do_el0_svc+0x5c/0x140 [ 67.307340][ T4847] el0_svc+0x78/0x1d0 [ 67.308094][ T4847] el0t_64_sync_handler+0xcc/0xe4 [ 67.309012][ T4847] el0t_64_sync+0x1a0/0x1a4 [ 67.309826][ T4847] irq event stamp: 79746 [ 67.310563][ T4847] hardirqs last enabled at (79745): [] __up_console_sem+0xb4/0xfc [ 67.312360][ T4847] hardirqs last disabled at (79746): [] el1_dbg+0x24/0x80 [ 67.313944][ T4847] softirqs last enabled at (79708): [] handle_softirqs+0xa70/0xc14 [ 67.315651][ T4847] softirqs last disabled at (79691): [] __irq_exit_rcu+0x240/0x434 [ 67.317297][ T4847] ---[ end trace 2bc8cb018f005b2c ]--- [ 67.319824][ T4847] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 67.321482][ T4847] BTRFS info (device loop0): forced readonly [ 67.491888][ T4869] loop0: detected capacity change from 0 to 32768 [ 67.540220][ T4869] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.22 (4869) [ 67.545646][ T4869] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 67.547997][ T4869] BTRFS info (device loop0): enabling auto defrag [ 67.549114][ T4869] BTRFS info (device loop0): enabling ssd optimizations [ 67.550360][ T4869] BTRFS info (device loop0): using spread ssd allocation scheme [ 67.551634][ T4869] BTRFS info (device loop0): max_inline at 0 [ 67.552629][ T4869] BTRFS info (device loop0): force clearing of disk cache [ 67.553975][ T4869] BTRFS info (device loop0): turning on sync discard [ 67.555155][ T4869] BTRFS info (device loop0): disabling free space tree [ 67.556214][ T4869] BTRFS info (device loop0): has skinny extents [ 67.570108][ T4869] BTRFS info (device loop0): clearing free space tree [ 67.571300][ T4869] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 67.572904][ T4869] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 67.579387][ T4869] FAULT_INJECTION: forcing a failure. [ 67.579387][ T4869] name failslab, interval 1, probability 0, space 0, times 0 [ 67.581589][ T4869] CPU: 0 PID: 4869 Comm: syz.0.22 Tainted: G W syzkaller #0 [ 67.582961][ T4869] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 67.584689][ T4869] Call trace: [ 67.585320][ T4869] dump_backtrace+0x0/0x458 [ 67.586129][ T4869] show_stack+0x2c/0x3c [ 67.586957][ T4869] __dump_stack+0x30/0x40 [ 67.587769][ T4869] dump_stack_lvl+0xf4/0x15c [ 67.588628][ T4869] dump_stack+0x1c/0x5c [ 67.589356][ T4869] should_fail+0x3c8/0x520 [ 67.590160][ T4869] __should_failslab+0xbc/0x10c [ 67.591088][ T4869] should_failslab+0x10/0x28 [ 67.591894][ T4869] slab_pre_alloc_hook+0x64/0xe8 [ 67.592822][ T4869] kmem_cache_alloc+0x94/0x3d8 [ 67.593690][ T4869] start_transaction+0x530/0x1438 [ 67.594645][ T4869] btrfs_start_transaction+0x34/0x44 [ 67.595644][ T4869] btrfs_ioctl_set_fslabel+0x2bc/0x3c8 [ 67.596608][ T4869] btrfs_ioctl+0x50c/0xa8c [ 67.597380][ T4869] __arm64_sys_ioctl+0x14c/0x1c8 [ 67.598270][ T4869] invoke_syscall+0x98/0x28c [ 67.599079][ T4869] el0_svc_common+0x13c/0x258 [ 67.599920][ T4869] do_el0_svc+0x5c/0x140 [ 67.600717][ T4869] el0_svc+0x78/0x1d0 [ 67.601401][ T4869] el0t_64_sync_handler+0xcc/0xe4 [ 67.602303][ T4869] el0t_64_sync+0x1a0/0x1a4 [ 67.760579][ T4891] loop0: detected capacity change from 0 to 32768 [ 67.801530][ T4891] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.23 (4891) [ 67.807120][ T4891] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 67.808605][ T4891] BTRFS info (device loop0): enabling auto defrag [ 67.809659][ T4891] BTRFS info (device loop0): enabling ssd optimizations [ 67.810901][ T4891] BTRFS info (device loop0): using spread ssd allocation scheme [ 67.812386][ T4891] BTRFS info (device loop0): max_inline at 0 [ 67.813438][ T4891] BTRFS info (device loop0): force clearing of disk cache [ 67.814662][ T4891] BTRFS info (device loop0): turning on sync discard [ 67.815994][ T4891] BTRFS info (device loop0): disabling free space tree [ 67.817374][ T4891] BTRFS info (device loop0): has skinny extents [ 67.825814][ T4891] BTRFS info (device loop0): clearing free space tree [ 67.827098][ T4891] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 67.828661][ T4891] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 67.833956][ T4891] FAULT_INJECTION: forcing a failure. [ 67.833956][ T4891] name failslab, interval 1, probability 0, space 0, times 0 [ 67.836242][ T4891] CPU: 0 PID: 4891 Comm: syz.0.23 Tainted: G W syzkaller #0 [ 67.837924][ T4891] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 67.839798][ T4891] Call trace: [ 67.840327][ T4891] dump_backtrace+0x0/0x458 [ 67.841146][ T4891] show_stack+0x2c/0x3c [ 67.841922][ T4891] __dump_stack+0x30/0x40 [ 67.842695][ T4891] dump_stack_lvl+0xf4/0x15c [ 67.843522][ T4891] dump_stack+0x1c/0x5c [ 67.844250][ T4891] should_fail+0x3c8/0x520 [ 67.845020][ T4891] __should_failslab+0xbc/0x10c [ 67.845852][ T4891] should_failslab+0x10/0x28 [ 67.846664][ T4891] slab_pre_alloc_hook+0x64/0xe8 [ 67.847605][ T4891] kmem_cache_alloc+0x94/0x3d8 [ 67.848434][ T4891] btrfs_alloc_path+0x5c/0x68 [ 67.849329][ T4891] __btrfs_free_extent+0x1a4/0x1ae0 [ 67.850257][ T4891] __btrfs_run_delayed_refs+0xc00/0x3484 [ 67.851261][ T4891] btrfs_run_delayed_refs+0x11c/0x460 [ 67.852156][ T4891] btrfs_commit_transaction+0x1d8/0x30ac [ 67.853127][ T4891] btrfs_ioctl_set_fslabel+0x2f8/0x3c8 [ 67.854258][ T4891] btrfs_ioctl+0x50c/0xa8c [ 67.855214][ T4891] __arm64_sys_ioctl+0x14c/0x1c8 [ 67.856295][ T4891] invoke_syscall+0x98/0x28c [ 67.857148][ T4891] el0_svc_common+0x13c/0x258 [ 67.858017][ T4891] do_el0_svc+0x5c/0x140 [ 67.858783][ T4891] el0_svc+0x78/0x1d0 [ 67.859544][ T4891] el0t_64_sync_handler+0xcc/0xe4 [ 67.860428][ T4891] el0t_64_sync+0x1a0/0x1a4 [ 67.863626][ T4891] BTRFS error (device loop0): failed to run delayed ref for logical 5255168 num_bytes 4096 type 176 action 2 ref_mod 1: -12 [ 67.866061][ T4891] ------------[ cut here ]------------ [ 67.867939][ T4891] WARNING: CPU: 1 PID: 4891 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e8/0x460 [ 67.869729][ T4891] Modules linked in: [ 67.870407][ T4891] CPU: 1 PID: 4891 Comm: syz.0.23 Tainted: G W syzkaller #0 [ 67.871854][ T4891] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 67.873658][ T4891] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 67.875097][ T4891] pc : btrfs_run_delayed_refs+0x3e8/0x460 [ 67.876171][ T4891] lr : btrfs_run_delayed_refs+0x3e8/0x460 [ 67.877281][ T4891] sp : ffff8000205377d0 [ 67.878150][ T4891] x29: ffff8000205377e0 x28: ffff0000cdbe9000 x27: dfff800000000000 [ 67.879663][ T4891] x26: dfff800000000000 x25: ffff0000deeda8f0 x24: 1fffe0001bddb529 [ 67.881350][ T4891] x23: ffff0000deeda948 x22: 00000000fffffff4 x21: 0000000000000000 [ 67.882875][ T4891] x20: 00000000fffffff4 x19: ffff0000deeda8f0 x18: 0000000000000000 [ 67.884560][ T4891] x17: 0000000000000000 x16: ffff80001134e478 x15: 0000000000000000 [ 67.886229][ T4891] x14: 0000000000000001 x13: 1fffe000341d2dab x12: 0000000000000000 [ 67.887897][ T4891] x11: ff8080000830061c x10: 0000000000000000 x9 : 7653a0b21857b100 [ 67.889525][ T4891] x8 : 7653a0b21857b100 x7 : 0000000000000001 x6 : 0000000000000001 [ 67.891153][ T4891] x5 : ffff8000205370d8 x4 : ffff80001446f500 x3 : ffff80000850f688 [ 67.892740][ T4891] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 67.894127][ T4891] Call trace: [ 67.894756][ T4891] btrfs_run_delayed_refs+0x3e8/0x460 [ 67.895896][ T4891] btrfs_commit_transaction+0x1d8/0x30ac [ 67.896936][ T4891] btrfs_ioctl_set_fslabel+0x2f8/0x3c8 [ 67.897971][ T4891] btrfs_ioctl+0x50c/0xa8c [ 67.898742][ T4891] __arm64_sys_ioctl+0x14c/0x1c8 [ 67.899620][ T4891] invoke_syscall+0x98/0x28c [ 67.900494][ T4891] el0_svc_common+0x13c/0x258 [ 67.901296][ T4891] do_el0_svc+0x5c/0x140 [ 67.902043][ T4891] el0_svc+0x78/0x1d0 [ 67.902766][ T4891] el0t_64_sync_handler+0xcc/0xe4 [ 67.903626][ T4891] el0t_64_sync+0x1a0/0x1a4 [ 67.904589][ T4891] irq event stamp: 79816 [ 67.905343][ T4891] hardirqs last enabled at (79815): [] __up_console_sem+0xb4/0xfc [ 67.906932][ T4891] hardirqs last disabled at (79816): [] el1_dbg+0x24/0x80 [ 67.908409][ T4891] softirqs last enabled at (79804): [] handle_softirqs+0xa70/0xc14 [ 67.910052][ T4891] softirqs last disabled at (79737): [] __irq_exit_rcu+0x240/0x434 [ 67.911739][ T4891] ---[ end trace 2bc8cb018f005b2d ]--- [ 67.914764][ T4891] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 68.093589][ T4913] loop0: detected capacity change from 0 to 32768 [ 68.131649][ T4913] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.24 (4913) [ 68.159626][ T4913] FAULT_INJECTION: forcing a failure. [ 68.159626][ T4913] name failslab, interval 1, probability 0, space 0, times 0 [ 68.161900][ T4913] CPU: 1 PID: 4913 Comm: syz.0.24 Tainted: G W syzkaller #0 [ 68.163343][ T4913] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 68.165173][ T4913] Call trace: [ 68.165789][ T4913] dump_backtrace+0x0/0x458 [ 68.166638][ T4913] show_stack+0x2c/0x3c [ 68.167378][ T4913] __dump_stack+0x30/0x40 [ 68.168244][ T4913] dump_stack_lvl+0xf4/0x15c [ 68.169092][ T4913] dump_stack+0x1c/0x5c [ 68.169863][ T4913] should_fail+0x3c8/0x520 [ 68.170688][ T4913] __should_failslab+0xbc/0x10c [ 68.171642][ T4913] should_failslab+0x10/0x28 [ 68.172445][ T4913] slab_pre_alloc_hook+0x64/0xe8 [ 68.173306][ T4913] kmem_cache_alloc+0x94/0x3d8 [ 68.174163][ T4913] btrfs_alloc_path+0x5c/0x68 [ 68.175057][ T4913] __btrfs_run_delayed_refs+0xe6c/0x3484 [ 68.176027][ T4913] btrfs_run_delayed_refs+0x11c/0x460 [ 68.176967][ T4913] btrfs_commit_transaction+0x1d8/0x30ac [ 68.177950][ T4913] btrfs_ioctl_set_fslabel+0x2f8/0x3c8 [ 68.178908][ T4913] btrfs_ioctl+0x50c/0xa8c [ 68.179701][ T4913] __arm64_sys_ioctl+0x14c/0x1c8 [ 68.180555][ T4913] invoke_syscall+0x98/0x28c [ 68.181345][ T4913] el0_svc_common+0x13c/0x258 [ 68.182180][ T4913] do_el0_svc+0x5c/0x140 [ 68.182912][ T4913] el0_svc+0x78/0x1d0 [ 68.183566][ T4913] el0t_64_sync_handler+0xcc/0xe4 [ 68.184448][ T4913] el0t_64_sync+0x1a0/0x1a4 [ 68.186210][ T4913] BTRFS error (device loop0): failed to run delayed ref for logical 5251072 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 68.188571][ T4913] ------------[ cut here ]------------ [ 68.189592][ T4913] WARNING: CPU: 1 PID: 4913 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e8/0x460 [ 68.191386][ T4913] Modules linked in: [ 68.192041][ T4913] CPU: 1 PID: 4913 Comm: syz.0.24 Tainted: G W syzkaller #0 [ 68.193477][ T4913] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 68.195045][ T4913] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 68.196212][ T4913] pc : btrfs_run_delayed_refs+0x3e8/0x460 [ 68.197144][ T4913] lr : btrfs_run_delayed_refs+0x3e8/0x460 [ 68.198138][ T4913] sp : ffff800020b977d0 [ 68.198834][ T4913] x29: ffff800020b977e0 x28: ffff0000cbf64000 x27: dfff800000000000 [ 68.200299][ T4913] x26: dfff800000000000 x25: ffff0000deedea50 x24: 1fffe0001bddbd55 [ 68.201677][ T4913] x23: ffff0000deedeaa8 x22: 00000000fffffff4 x21: 0000000000000000 [ 68.203064][ T4913] x20: 00000000fffffff4 x19: ffff0000deedea50 x18: 0000000000000000 [ 68.204397][ T4913] x17: 0000000000000000 x16: ffff80001134e478 x15: 0000000000000000 [ 68.205753][ T4913] x14: 0000000000000001 x13: 1fffe000341d2dab x12: 0000000000000000 [ 68.207208][ T4913] x11: ff8080000830061c x10: 0000000000000000 x9 : 748e4e3f4fdbd100 [ 68.208511][ T4913] x8 : 748e4e3f4fdbd100 x7 : 0000000000000001 x6 : 0000000000000001 [ 68.209843][ T4913] x5 : ffff800020b970d8 x4 : ffff80001446f500 x3 : ffff80000850f688 [ 68.211215][ T4913] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 68.212522][ T4913] Call trace: [ 68.213047][ T4913] btrfs_run_delayed_refs+0x3e8/0x460 [ 68.213966][ T4913] btrfs_commit_transaction+0x1d8/0x30ac [ 68.214917][ T4913] btrfs_ioctl_set_fslabel+0x2f8/0x3c8 [ 68.215864][ T4913] btrfs_ioctl+0x50c/0xa8c [ 68.216637][ T4913] __arm64_sys_ioctl+0x14c/0x1c8 [ 68.217489][ T4913] invoke_syscall+0x98/0x28c [ 68.218268][ T4913] el0_svc_common+0x13c/0x258 [ 68.219080][ T4913] do_el0_svc+0x5c/0x140 [ 68.219810][ T4913] el0_svc+0x78/0x1d0 [ 68.220587][ T4913] el0t_64_sync_handler+0xcc/0xe4 [ 68.221458][ T4913] el0t_64_sync+0x1a0/0x1a4 [ 68.222297][ T4913] irq event stamp: 79688 [ 68.223019][ T4913] hardirqs last enabled at (79687): [] __up_console_sem+0xb4/0xfc [ 68.224686][ T4913] hardirqs last disabled at (79688): [] el1_dbg+0x24/0x80 [ 68.226150][ T4913] softirqs last enabled at (79664): [] handle_softirqs+0xa70/0xc14 [ 68.227848][ T4913] softirqs last disabled at (79629): [] __irq_exit_rcu+0x240/0x434 [ 68.229482][ T4913] ---[ end trace 2bc8cb018f005b2e ]--- [ 68.231561][ T4913] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 68.409374][ T4935] loop0: detected capacity change from 0 to 32768 [ 68.452303][ T4935] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.25 (4935) [ 68.467483][ T4935] FAULT_INJECTION: forcing a failure. [ 68.467483][ T4935] name failslab, interval 1, probability 0, space 0, times 0 [ 68.469645][ T4935] CPU: 1 PID: 4935 Comm: syz.0.25 Tainted: G W syzkaller #0 [ 68.471045][ T4935] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 68.472784][ T4935] Call trace: [ 68.473343][ T4935] dump_backtrace+0x0/0x458 [ 68.474248][ T4935] show_stack+0x2c/0x3c [ 68.474991][ T4935] __dump_stack+0x30/0x40 [ 68.475764][ T4935] dump_stack_lvl+0xf4/0x15c [ 68.476577][ T4935] dump_stack+0x1c/0x5c [ 68.477363][ T4935] should_fail+0x3c8/0x520 [ 68.478124][ T4935] __should_failslab+0xbc/0x10c [ 68.478977][ T4935] should_failslab+0x10/0x28 [ 68.479839][ T4935] slab_pre_alloc_hook+0x64/0xe8 [ 68.480699][ T4935] kmem_cache_alloc+0x94/0x3d8 [ 68.481559][ T4935] btrfs_alloc_path+0x5c/0x68 [ 68.482364][ T4935] __btrfs_run_delayed_refs+0xe6c/0x3484 [ 68.483340][ T4935] btrfs_run_delayed_refs+0x11c/0x460 [ 68.484264][ T4935] btrfs_commit_transaction+0x1d8/0x30ac [ 68.485299][ T4935] btrfs_ioctl_set_fslabel+0x2f8/0x3c8 [ 68.486370][ T4935] btrfs_ioctl+0x50c/0xa8c [ 68.487162][ T4935] __arm64_sys_ioctl+0x14c/0x1c8 [ 68.488046][ T4935] invoke_syscall+0x98/0x28c [ 68.488874][ T4935] el0_svc_common+0x13c/0x258 [ 68.489688][ T4935] do_el0_svc+0x5c/0x140 [ 68.490544][ T4935] el0_svc+0x78/0x1d0 [ 68.491326][ T4935] el0t_64_sync_handler+0xcc/0xe4 [ 68.492258][ T4935] el0t_64_sync+0x1a0/0x1a4 [ 68.495131][ T4935] BTRFS error (device loop0): failed to run delayed ref for logical 5246976 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 68.497388][ T4935] ------------[ cut here ]------------ [ 68.498422][ T4935] WARNING: CPU: 1 PID: 4935 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e8/0x460 [ 68.500176][ T4935] Modules linked in: [ 68.500817][ T4935] CPU: 1 PID: 4935 Comm: syz.0.25 Tainted: G W syzkaller #0 [ 68.502208][ T4935] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 68.503954][ T4935] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 68.505305][ T4935] pc : btrfs_run_delayed_refs+0x3e8/0x460 [ 68.506265][ T4935] lr : btrfs_run_delayed_refs+0x3e8/0x460 [ 68.507225][ T4935] sp : ffff800020ca77d0 [ 68.507916][ T4935] x29: ffff800020ca77e0 x28: ffff0000d4dcf000 x27: dfff800000000000 [ 68.509248][ T4935] x26: dfff800000000000 x25: ffff0000deedec60 x24: 1fffe0001bddbd97 [ 68.510660][ T4935] x23: ffff0000deedecb8 x22: 00000000fffffff4 x21: 0000000000000000 [ 68.512205][ T4935] x20: 00000000fffffff4 x19: ffff0000deedec60 x18: 0000000000000000 [ 68.513758][ T4935] x17: 0000000000000000 x16: ffff80001134e478 x15: 0000000000000000 [ 68.515208][ T4935] x14: 0000000000000001 x13: 1fffe000341d2dab x12: 0000000000000000 [ 68.516672][ T4935] x11: ff8080000830061c x10: 0000000000000000 x9 : 34b4583909da1700 [ 68.518215][ T4935] x8 : 34b4583909da1700 x7 : 0000000000000001 x6 : 0000000000000001 [ 68.519683][ T4935] x5 : ffff800020ca70d8 x4 : ffff80001446f500 x3 : ffff80000850f688 [ 68.521225][ T4935] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 68.522689][ T4935] Call trace: [ 68.523277][ T4935] btrfs_run_delayed_refs+0x3e8/0x460 [ 68.524221][ T4935] btrfs_commit_transaction+0x1d8/0x30ac [ 68.525219][ T4935] btrfs_ioctl_set_fslabel+0x2f8/0x3c8 [ 68.526150][ T4935] btrfs_ioctl+0x50c/0xa8c [ 68.526902][ T4935] __arm64_sys_ioctl+0x14c/0x1c8 [ 68.527740][ T4935] invoke_syscall+0x98/0x28c [ 68.528579][ T4935] el0_svc_common+0x13c/0x258 [ 68.529430][ T4935] do_el0_svc+0x5c/0x140 [ 68.530178][ T4935] el0_svc+0x78/0x1d0 [ 68.530879][ T4935] el0t_64_sync_handler+0xcc/0xe4 [ 68.531767][ T4935] el0t_64_sync+0x1a0/0x1a4 [ 68.532585][ T4935] irq event stamp: 79312 [ 68.533299][ T4935] hardirqs last enabled at (79311): [] __up_console_sem+0xb4/0xfc [ 68.534942][ T4935] hardirqs last disabled at (79312): [] el1_dbg+0x24/0x80 [ 68.536496][ T4935] softirqs last enabled at (79288): [] handle_softirqs+0xa70/0xc14 [ 68.538165][ T4935] softirqs last disabled at (79273): [] __irq_exit_rcu+0x240/0x434 [ 68.539852][ T4935] ---[ end trace 2bc8cb018f005b2f ]--- [ 68.542789][ T4935] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 68.787784][ T4957] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.26 (4957) [ 68.811493][ T4957] FAULT_INJECTION: forcing a failure. [ 68.811493][ T4957] name failslab, interval 1, probability 0, space 0, times 0 [ 68.813665][ T4957] CPU: 0 PID: 4957 Comm: syz.0.26 Tainted: G W syzkaller #0 [ 68.815102][ T4957] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 68.816808][ T4957] Call trace: [ 68.817406][ T4957] dump_backtrace+0x0/0x458 [ 68.818229][ T4957] show_stack+0x2c/0x3c [ 68.818935][ T4957] __dump_stack+0x30/0x40 [ 68.819684][ T4957] dump_stack_lvl+0xf4/0x15c [ 68.820510][ T4957] dump_stack+0x1c/0x5c [ 68.821263][ T4957] should_fail+0x3c8/0x520 [ 68.822064][ T4957] __should_failslab+0xbc/0x10c [ 68.822918][ T4957] should_failslab+0x10/0x28 [ 68.823692][ T4957] slab_pre_alloc_hook+0x64/0xe8 [ 68.824536][ T4957] kmem_cache_alloc+0x94/0x3d8 [ 68.825335][ T4957] btrfs_alloc_path+0x5c/0x68 [ 68.826146][ T4957] __btrfs_run_delayed_refs+0xe6c/0x3484 [ 68.827109][ T4957] btrfs_run_delayed_refs+0x11c/0x460 [ 68.827988][ T4957] btrfs_commit_transaction+0x1d8/0x30ac [ 68.828947][ T4957] btrfs_ioctl_set_fslabel+0x2f8/0x3c8 [ 68.829893][ T4957] btrfs_ioctl+0x50c/0xa8c [ 68.830655][ T4957] __arm64_sys_ioctl+0x14c/0x1c8 [ 68.831540][ T4957] invoke_syscall+0x98/0x28c [ 68.832343][ T4957] el0_svc_common+0x13c/0x258 [ 68.833166][ T4957] do_el0_svc+0x5c/0x140 [ 68.833879][ T4957] el0_svc+0x78/0x1d0 [ 68.834548][ T4957] el0t_64_sync_handler+0xcc/0xe4 [ 68.835427][ T4957] el0t_64_sync+0x1a0/0x1a4 [ 68.839767][ T4957] BTRFS error (device loop0): failed to run delayed ref for logical 5246976 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 68.841925][ T4957] ------------[ cut here ]------------ [ 68.843039][ T4957] WARNING: CPU: 0 PID: 4957 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e8/0x460 [ 68.844655][ T4957] Modules linked in: [ 68.845313][ T4957] CPU: 0 PID: 4957 Comm: syz.0.26 Tainted: G W syzkaller #0 [ 68.846738][ T4957] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 68.848494][ T4957] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 68.849919][ T4957] pc : btrfs_run_delayed_refs+0x3e8/0x460 [ 68.850920][ T4957] lr : btrfs_run_delayed_refs+0x3e8/0x460 [ 68.851911][ T4957] sp : ffff800020ca77d0 [ 68.852588][ T4957] x29: ffff800020ca77e0 x28: ffff0000ec166000 x27: dfff800000000000 [ 68.854001][ T4957] x26: dfff800000000000 x25: ffff0000deedab00 x24: 1fffe0001bddb56b [ 68.855377][ T4957] x23: ffff0000deedab58 x22: 00000000fffffff4 x21: 0000000000000000 [ 68.856758][ T4957] x20: 00000000fffffff4 x19: ffff0000deedab00 x18: 0000000000000000 [ 68.858132][ T4957] x17: 0000000000000000 x16: ffff80001134e478 x15: 0000000000000000 [ 68.859515][ T4957] x14: 0000000000000001 x13: 1fffe000341cebab x12: 0000000000000000 [ 68.860928][ T4957] x11: ff8080000830061c x10: 0000000000000000 x9 : 5d53bff92b93f700 [ 68.862287][ T4957] x8 : 5d53bff92b93f700 x7 : 0000000000000001 x6 : 0000000000000001 [ 68.863691][ T4957] x5 : ffff800020ca70d8 x4 : ffff80001446f500 x3 : ffff80000850f688 [ 68.865065][ T4957] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 68.866478][ T4957] Call trace: [ 68.867030][ T4957] btrfs_run_delayed_refs+0x3e8/0x460 [ 68.867927][ T4957] btrfs_commit_transaction+0x1d8/0x30ac [ 68.868893][ T4957] btrfs_ioctl_set_fslabel+0x2f8/0x3c8 [ 68.869830][ T4957] btrfs_ioctl+0x50c/0xa8c [ 68.870573][ T4957] __arm64_sys_ioctl+0x14c/0x1c8 [ 68.871434][ T4957] invoke_syscall+0x98/0x28c [ 68.872163][ T4957] el0_svc_common+0x13c/0x258 [ 68.872949][ T4957] do_el0_svc+0x5c/0x140 [ 68.873643][ T4957] el0_svc+0x78/0x1d0 [ 68.874319][ T4957] el0t_64_sync_handler+0xcc/0xe4 [ 68.875158][ T4957] el0t_64_sync+0x1a0/0x1a4 [ 68.875985][ T4957] irq event stamp: 79618 [ 68.876693][ T4957] hardirqs last enabled at (79617): [] __up_console_sem+0xb4/0xfc [ 68.878430][ T4957] hardirqs last disabled at (79618): [] el1_dbg+0x24/0x80 [ 68.879859][ T4957] softirqs last enabled at (79580): [] handle_softirqs+0xa70/0xc14 [ 68.881472][ T4957] softirqs last disabled at (79547): [] __irq_exit_rcu+0x240/0x434 [ 68.883159][ T4957] ---[ end trace 2bc8cb018f005b30 ]--- [ 68.886414][ T4957] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 69.066325][ T4979] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.27 (4979) [ 69.068956][ T4073] Bluetooth: hci0: command 0x0419 tx timeout [ 69.092025][ T4979] FAULT_INJECTION: forcing a failure. [ 69.092025][ T4979] name failslab, interval 1, probability 0, space 0, times 0 [ 69.094289][ T4979] CPU: 0 PID: 4979 Comm: syz.0.27 Tainted: G W syzkaller #0 [ 69.095747][ T4979] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 69.097814][ T4979] Call trace: [ 69.098477][ T4979] dump_backtrace+0x0/0x458 [ 69.099303][ T4979] show_stack+0x2c/0x3c [ 69.100069][ T4979] __dump_stack+0x30/0x40 [ 69.100828][ T4979] dump_stack_lvl+0xf4/0x15c [ 69.101607][ T4979] dump_stack+0x1c/0x5c [ 69.102334][ T4979] should_fail+0x3c8/0x520 [ 69.103101][ T4979] __should_failslab+0xbc/0x10c [ 69.103910][ T4979] should_failslab+0x10/0x28 [ 69.104649][ T4979] slab_pre_alloc_hook+0x64/0xe8 [ 69.105485][ T4979] kmem_cache_alloc+0x94/0x3d8 [ 69.106356][ T4979] btrfs_alloc_path+0x5c/0x68 [ 69.107145][ T4979] __btrfs_run_delayed_refs+0xe6c/0x3484 [ 69.108098][ T4979] btrfs_run_delayed_refs+0x11c/0x460 [ 69.109028][ T4979] btrfs_commit_transaction+0x1d8/0x30ac [ 69.110021][ T4979] btrfs_ioctl_set_fslabel+0x2f8/0x3c8 [ 69.110969][ T4979] btrfs_ioctl+0x50c/0xa8c [ 69.111745][ T4979] __arm64_sys_ioctl+0x14c/0x1c8 [ 69.112672][ T4979] invoke_syscall+0x98/0x28c [ 69.113467][ T4979] el0_svc_common+0x13c/0x258 [ 69.114272][ T4979] do_el0_svc+0x5c/0x140 [ 69.115072][ T4979] el0_svc+0x78/0x1d0 [ 69.115796][ T4979] el0t_64_sync_handler+0xcc/0xe4 [ 69.116672][ T4979] el0t_64_sync+0x1a0/0x1a4 [ 69.120615][ T4979] BTRFS error (device loop0): failed to run delayed ref for logical 5246976 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 69.122752][ T4979] ------------[ cut here ]------------ [ 69.123786][ T4979] WARNING: CPU: 0 PID: 4979 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e8/0x460 [ 69.125495][ T4979] Modules linked in: [ 69.126221][ T4979] CPU: 0 PID: 4979 Comm: syz.0.27 Tainted: G W syzkaller #0 [ 69.127945][ T4979] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 69.129737][ T4979] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 69.131163][ T4979] pc : btrfs_run_delayed_refs+0x3e8/0x460 [ 69.132196][ T4979] lr : btrfs_run_delayed_refs+0x3e8/0x460 [ 69.133253][ T4979] sp : ffff800020e377d0 [ 69.134055][ T4979] x29: ffff800020e377e0 x28: ffff0000dc5b9000 x27: dfff800000000000 [ 69.135641][ T4979] x26: dfff800000000000 x25: ffff0000deedad10 x24: 1fffe0001bddb5ad [ 69.137063][ T4979] x23: ffff0000deedad68 x22: 00000000fffffff4 x21: 0000000000000000 [ 69.138522][ T4979] x20: 00000000fffffff4 x19: ffff0000deedad10 x18: 0000000000000000 [ 69.139905][ T4979] x17: 0000000000000000 x16: ffff80001134e478 x15: 0000000000000000 [ 69.141271][ T4979] x14: 0000000000000001 x13: 1fffe000341cebab x12: 0000000000000000 [ 69.142568][ T4979] x11: ff8080000830061c x10: 0000000000000000 x9 : 92c3692d32d39a00 [ 69.143882][ T4979] x8 : 92c3692d32d39a00 x7 : 0000000000000001 x6 : 0000000000000001 [ 69.145237][ T4979] x5 : ffff800020e370d8 x4 : ffff80001446f500 x3 : ffff80000850f688 [ 69.146622][ T4979] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 69.147959][ T4979] Call trace: [ 69.148547][ T4979] btrfs_run_delayed_refs+0x3e8/0x460 [ 69.149460][ T4979] btrfs_commit_transaction+0x1d8/0x30ac [ 69.150380][ T4979] btrfs_ioctl_set_fslabel+0x2f8/0x3c8 [ 69.151335][ T4979] btrfs_ioctl+0x50c/0xa8c [ 69.152106][ T4979] __arm64_sys_ioctl+0x14c/0x1c8 [ 69.153022][ T4979] invoke_syscall+0x98/0x28c [ 69.153840][ T4979] el0_svc_common+0x13c/0x258 [ 69.154659][ T4979] do_el0_svc+0x5c/0x140 [ 69.155393][ T4979] el0_svc+0x78/0x1d0 [ 69.156096][ T4979] el0t_64_sync_handler+0xcc/0xe4 [ 69.156953][ T4979] el0t_64_sync+0x1a0/0x1a4 [ 69.157742][ T4979] irq event stamp: 79710 [ 69.158492][ T4979] hardirqs last enabled at (79709): [] __up_console_sem+0xb4/0xfc [ 69.160133][ T4979] hardirqs last disabled at (79710): [] el1_dbg+0x24/0x80 [ 69.161617][ T4979] softirqs last enabled at (79676): [] handle_softirqs+0xa70/0xc14 [ 69.163308][ T4979] softirqs last disabled at (79627): [] __irq_exit_rcu+0x240/0x434 [ 69.164957][ T4979] ---[ end trace 2bc8cb018f005b31 ]--- [ 69.170961][ T4979] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 69.378263][ T5002] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.28 (5002) [ 69.451505][ T530] device hsr_slave_0 left promiscuous mode [ 69.462925][ T5002] FAULT_INJECTION: forcing a failure. [ 69.462925][ T5002] name failslab, interval 1, probability 0, space 0, times 0 [ 69.465125][ T5002] CPU: 1 PID: 5002 Comm: syz.0.28 Tainted: G W syzkaller #0 [ 69.466745][ T5002] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 69.468580][ T5002] Call trace: [ 69.469155][ T5002] dump_backtrace+0x0/0x458 [ 69.470049][ T5002] show_stack+0x2c/0x3c [ 69.470729][ T5002] __dump_stack+0x30/0x40 [ 69.471451][ T5002] dump_stack_lvl+0xf4/0x15c [ 69.472238][ T5002] dump_stack+0x1c/0x5c [ 69.472950][ T5002] should_fail+0x3c8/0x520 [ 69.473814][ T5002] __should_failslab+0xbc/0x10c [ 69.474713][ T5002] should_failslab+0x10/0x28 [ 69.475563][ T5002] slab_pre_alloc_hook+0x64/0xe8 [ 69.476499][ T5002] kmem_cache_alloc+0x94/0x3d8 [ 69.477373][ T5002] start_transaction+0x530/0x1438 [ 69.478281][ T5002] btrfs_start_transaction+0x34/0x44 [ 69.479228][ T5002] btrfs_ioctl_set_fslabel+0x2bc/0x3c8 [ 69.480163][ T5002] btrfs_ioctl+0x50c/0xa8c [ 69.480894][ T5002] __arm64_sys_ioctl+0x14c/0x1c8 [ 69.481761][ T5002] invoke_syscall+0x98/0x28c [ 69.482614][ T5002] el0_svc_common+0x13c/0x258 [ 69.483466][ T5002] do_el0_svc+0x5c/0x140 [ 69.484211][ T5002] el0_svc+0x78/0x1d0 [ 69.484915][ T5002] el0t_64_sync_handler+0xcc/0xe4 [ 69.485890][ T5002] el0t_64_sync+0x1a0/0x1a4 [ 69.497192][ T530] device hsr_slave_1 left promiscuous mode [ 69.556794][ T530] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 69.558147][ T530] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 69.559836][ T530] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 69.561101][ T530] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 69.562492][ T530] device bridge_slave_1 left promiscuous mode [ 69.563538][ T530] bridge0: port 2(bridge_slave_1) entered disabled state [ 69.597470][ T530] device bridge_slave_0 left promiscuous mode [ 69.598624][ T530] bridge0: port 1(bridge_slave_0) entered disabled state [ 69.627251][ T25] cfg80211: failed to load regulatory.db [ 69.637600][ T2063] ieee802154 phy0 wpan0: encryption failed: -22 [ 69.639196][ T2063] ieee802154 phy1 wpan1: encryption failed: -22 [ 69.692216][ T5024] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.29 (5024) [ 69.727832][ T530] device veth1_macvtap left promiscuous mode [ 69.728888][ T530] device veth0_macvtap left promiscuous mode [ 69.730005][ T530] device veth1_vlan left promiscuous mode [ 69.731020][ T530] device veth0_vlan left promiscuous mode [ 69.813056][ T5024] FAULT_INJECTION: forcing a failure. [ 69.813056][ T5024] name failslab, interval 1, probability 0, space 0, times 0 [ 69.815193][ T5024] CPU: 0 PID: 5024 Comm: syz.0.29 Tainted: G W syzkaller #0 [ 69.816528][ T5024] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 69.818343][ T5024] Call trace: [ 69.819015][ T5024] dump_backtrace+0x0/0x458 [ 69.819918][ T5024] show_stack+0x2c/0x3c [ 69.820707][ T5024] __dump_stack+0x30/0x40 [ 69.821556][ T5024] dump_stack_lvl+0xf4/0x15c [ 69.822361][ T5024] dump_stack+0x1c/0x5c [ 69.823097][ T5024] should_fail+0x3c8/0x520 [ 69.823835][ T5024] __should_failslab+0xbc/0x10c [ 69.824637][ T5024] should_failslab+0x10/0x28 [ 69.825410][ T5024] slab_pre_alloc_hook+0x64/0xe8 [ 69.826281][ T5024] kmem_cache_alloc+0x94/0x3d8 [ 69.827123][ T5024] btrfs_alloc_path+0x5c/0x68 [ 69.827964][ T5024] __btrfs_run_delayed_refs+0xe6c/0x3484 [ 69.828961][ T5024] btrfs_run_delayed_refs+0x11c/0x460 [ 69.829869][ T5024] btrfs_commit_transaction+0x1d8/0x30ac [ 69.830805][ T5024] btrfs_ioctl_set_fslabel+0x2f8/0x3c8 [ 69.831720][ T5024] btrfs_ioctl+0x50c/0xa8c [ 69.832464][ T5024] __arm64_sys_ioctl+0x14c/0x1c8 [ 69.833343][ T5024] invoke_syscall+0x98/0x28c [ 69.834182][ T5024] el0_svc_common+0x13c/0x258 [ 69.835097][ T5024] do_el0_svc+0x5c/0x140 [ 69.836009][ T5024] el0_svc+0x78/0x1d0 [ 69.836717][ T5024] el0t_64_sync_handler+0xcc/0xe4 [ 69.837602][ T5024] el0t_64_sync+0x1a0/0x1a4 [ 69.840780][ T5024] BTRFS error (device loop0): failed to run delayed ref for logical 5246976 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 69.843302][ T5024] ------------[ cut here ]------------ [ 69.844264][ T5024] WARNING: CPU: 0 PID: 5024 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e8/0x460 [ 69.845906][ T5024] Modules linked in: [ 69.846518][ T5024] CPU: 0 PID: 5024 Comm: syz.0.29 Tainted: G W syzkaller #0 [ 69.847939][ T5024] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 69.849698][ T5024] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 69.850951][ T5024] pc : btrfs_run_delayed_refs+0x3e8/0x460 [ 69.851891][ T5024] lr : btrfs_run_delayed_refs+0x3e8/0x460 [ 69.852885][ T5024] sp : ffff8000211377d0 [ 69.853590][ T5024] x29: ffff8000211377e0 x28: ffff0000d6920000 x27: dfff800000000000 [ 69.855054][ T5024] x26: dfff800000000000 x25: ffff0000deedae70 x24: 1fffe0001bddb5d9 [ 69.856508][ T5024] x23: ffff0000deedaec8 x22: 00000000fffffff4 x21: 0000000000000000 [ 69.857909][ T5024] x20: 00000000fffffff4 x19: ffff0000deedae70 x18: 0000000000000000 [ 69.859256][ T5024] x17: 0000000000000000 x16: ffff80001134e478 x15: 0000000000000000 [ 69.860700][ T5024] x14: 0000000000000001 x13: 1fffe000341cebab x12: 0000000000000000 [ 69.862118][ T5024] x11: ff8080000830061c x10: 0000000000000000 x9 : 966ad3fcabbecc00 [ 69.863486][ T5024] x8 : 966ad3fcabbecc00 x7 : 0000000000000001 x6 : 0000000000000001 [ 69.864906][ T5024] x5 : ffff8000211370d8 x4 : ffff80001446f500 x3 : ffff80000850f688 [ 69.866316][ T5024] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 69.867740][ T5024] Call trace: [ 69.868290][ T5024] btrfs_run_delayed_refs+0x3e8/0x460 [ 69.869194][ T5024] btrfs_commit_transaction+0x1d8/0x30ac [ 69.870174][ T5024] btrfs_ioctl_set_fslabel+0x2f8/0x3c8 [ 69.871124][ T5024] btrfs_ioctl+0x50c/0xa8c [ 69.871932][ T5024] __arm64_sys_ioctl+0x14c/0x1c8 [ 69.872847][ T5024] invoke_syscall+0x98/0x28c [ 69.873632][ T5024] el0_svc_common+0x13c/0x258 [ 69.874440][ T5024] do_el0_svc+0x5c/0x140 [ 69.875106][ T5024] el0_svc+0x78/0x1d0 [ 69.875776][ T5024] el0t_64_sync_handler+0xcc/0xe4 [ 69.876631][ T5024] el0t_64_sync+0x1a0/0x1a4 [ 69.877468][ T5024] irq event stamp: 79972 [ 69.878205][ T5024] hardirqs last enabled at (79971): [] __up_console_sem+0xb4/0xfc [ 69.879796][ T5024] hardirqs last disabled at (79972): [] el1_dbg+0x24/0x80 [ 69.881238][ T5024] softirqs last enabled at (79718): [] handle_softirqs+0xa70/0xc14 [ 69.882861][ T5024] softirqs last disabled at (79653): [] __irq_exit_rcu+0x240/0x434 [ 69.884489][ T5024] ---[ end trace 2bc8cb018f005b32 ]--- [ 69.886419][ T5024] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 69.947380][ T4731] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 9 /dev/loop0 scanned by udevd (4731) [ 70.007772][ T530] team0 (unregistering): Port device team_slave_1 removed [ 70.026902][ T530] team0 (unregistering): Port device team_slave_0 removed [ 70.038305][ T530] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 70.080798][ T530] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 70.179471][ T530] bond0 (unregistering): Released all slaves [ 70.212894][ T5046] FAULT_INJECTION: forcing a failure. [ 70.212894][ T5046] name failslab, interval 1, probability 0, space 0, times 0 [ 70.215098][ T5046] CPU: 1 PID: 5046 Comm: syz.0.30 Tainted: G W syzkaller #0 [ 70.216578][ T5046] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 70.218493][ T5046] Call trace: [ 70.219095][ T5046] dump_backtrace+0x0/0x458 [ 70.219929][ T5046] show_stack+0x2c/0x3c [ 70.220655][ T5046] __dump_stack+0x30/0x40 [ 70.221436][ T5046] dump_stack_lvl+0xf4/0x15c [ 70.222241][ T5046] dump_stack+0x1c/0x5c [ 70.223001][ T5046] should_fail+0x3c8/0x520 [ 70.223814][ T5046] __should_failslab+0xbc/0x10c [ 70.224634][ T5046] should_failslab+0x10/0x28 [ 70.225408][ T5046] slab_pre_alloc_hook+0x64/0xe8 [ 70.226218][ T5046] kmem_cache_alloc+0x94/0x3d8 [ 70.226982][ T5046] btrfs_alloc_path+0x5c/0x68 [ 70.227775][ T5046] __btrfs_run_delayed_refs+0xe6c/0x3484 [ 70.228707][ T5046] btrfs_run_delayed_refs+0x11c/0x460 [ 70.229610][ T5046] btrfs_commit_transaction+0x1d8/0x30ac [ 70.230549][ T5046] btrfs_ioctl_set_fslabel+0x2f8/0x3c8 [ 70.231445][ T5046] btrfs_ioctl+0x50c/0xa8c [ 70.232189][ T5046] __arm64_sys_ioctl+0x14c/0x1c8 [ 70.233062][ T5046] invoke_syscall+0x98/0x28c [ 70.233888][ T5046] el0_svc_common+0x13c/0x258 [ 70.234719][ T5046] do_el0_svc+0x5c/0x140 [ 70.235479][ T5046] el0_svc+0x78/0x1d0 [ 70.236164][ T5046] el0t_64_sync_handler+0xcc/0xe4 [ 70.237024][ T5046] el0t_64_sync+0x1a0/0x1a4 [ 70.240799][ T5046] BTRFS error (device loop0): failed to run delayed ref for logical 5246976 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 70.243013][ T5046] ------------[ cut here ]------------ [ 70.244072][ T5046] WARNING: CPU: 1 PID: 5046 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e8/0x460 [ 70.245772][ T5046] Modules linked in: [ 70.246398][ T5046] CPU: 1 PID: 5046 Comm: syz.0.30 Tainted: G W syzkaller #0 [ 70.247959][ T5046] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 70.249853][ T5046] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 70.251452][ T5046] pc : btrfs_run_delayed_refs+0x3e8/0x460 [ 70.252535][ T5046] lr : btrfs_run_delayed_refs+0x3e8/0x460 [ 70.253542][ T5046] sp : ffff8000212677d0 [ 70.254282][ T5046] x29: ffff8000212677e0 x28: ffff0000d49d5000 x27: dfff800000000000 [ 70.255799][ T5046] x26: dfff800000000000 x25: ffff0000deedee70 x24: 1fffe0001bddbdd9 [ 70.257267][ T5046] x23: ffff0000deedeec8 x22: 00000000fffffff4 x21: 0000000000000000 [ 70.258600][ T5046] x20: 00000000fffffff4 x19: ffff0000deedee70 x18: 0000000000000000 [ 70.259978][ T5046] x17: 0000000000000000 x16: ffff80001134e478 x15: 0000000000000000 [ 70.261453][ T5046] x14: 0000000000000001 x13: 1fffe000341d2dab x12: 0000000000000000 [ 70.262857][ T5046] x11: ff8080000830061c x10: 0000000000000000 x9 : 56847f20bb88cb00 [ 70.264245][ T5046] x8 : 56847f20bb88cb00 x7 : 0000000000000001 x6 : 0000000000000001 [ 70.265597][ T5046] x5 : ffff8000212670d8 x4 : ffff80001446f500 x3 : ffff80000850f688 [ 70.266986][ T5046] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 70.268335][ T5046] Call trace: [ 70.268903][ T5046] btrfs_run_delayed_refs+0x3e8/0x460 [ 70.269900][ T5046] btrfs_commit_transaction+0x1d8/0x30ac [ 70.270929][ T5046] btrfs_ioctl_set_fslabel+0x2f8/0x3c8 [ 70.271891][ T5046] btrfs_ioctl+0x50c/0xa8c [ 70.272676][ T5046] __arm64_sys_ioctl+0x14c/0x1c8 [ 70.273538][ T5046] invoke_syscall+0x98/0x28c [ 70.274416][ T5046] el0_svc_common+0x13c/0x258 [ 70.275196][ T5046] do_el0_svc+0x5c/0x140 [ 70.275920][ T5046] el0_svc+0x78/0x1d0 [ 70.276591][ T5046] el0t_64_sync_handler+0xcc/0xe4 [ 70.277496][ T5046] el0t_64_sync+0x1a0/0x1a4 [ 70.278286][ T5046] irq event stamp: 79854 [ 70.279079][ T5046] hardirqs last enabled at (79853): [] __up_console_sem+0xb4/0xfc [ 70.280773][ T5046] hardirqs last disabled at (79854): [] el1_dbg+0x24/0x80 [ 70.282307][ T5046] softirqs last enabled at (79820): [] handle_softirqs+0xa70/0xc14 [ 70.284230][ T5046] softirqs last disabled at (79779): [] __irq_exit_rcu+0x240/0x434 [ 70.285996][ T5046] ---[ end trace 2bc8cb018f005b33 ]--- [ 70.289220][ T5046] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 70.328539][ T4731] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 9 /dev/loop0 scanned by udevd (4731) [ 70.593460][ T5069] FAULT_INJECTION: forcing a failure. [ 70.593460][ T5069] name failslab, interval 1, probability 0, space 0, times 0 [ 70.595819][ T5069] CPU: 1 PID: 5069 Comm: syz.0.31 Tainted: G W syzkaller #0 [ 70.597423][ T5069] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 70.599212][ T5069] Call trace: [ 70.599799][ T5069] dump_backtrace+0x0/0x458 [ 70.600641][ T5069] show_stack+0x2c/0x3c [ 70.601439][ T5069] __dump_stack+0x30/0x40 [ 70.602246][ T5069] dump_stack_lvl+0xf4/0x15c [ 70.603100][ T5069] dump_stack+0x1c/0x5c [ 70.603879][ T5069] should_fail+0x3c8/0x520 [ 70.604828][ T5069] __should_failslab+0xbc/0x10c [ 70.605802][ T5069] should_failslab+0x10/0x28 [ 70.606721][ T5069] slab_pre_alloc_hook+0x64/0xe8 [ 70.607681][ T5069] kmem_cache_alloc+0x94/0x3d8 [ 70.608617][ T5069] btrfs_alloc_path+0x5c/0x68 [ 70.609563][ T5069] __btrfs_free_extent+0x1a4/0x1ae0 [ 70.610538][ T5069] __btrfs_run_delayed_refs+0xc00/0x3484 [ 70.611587][ T5069] btrfs_run_delayed_refs+0x11c/0x460 [ 70.612555][ T5069] btrfs_commit_transaction+0x1d8/0x30ac [ 70.613664][ T5069] btrfs_ioctl_set_fslabel+0x2f8/0x3c8 [ 70.614684][ T5069] btrfs_ioctl+0x50c/0xa8c [ 70.615481][ T5069] __arm64_sys_ioctl+0x14c/0x1c8 [ 70.616351][ T5069] invoke_syscall+0x98/0x28c [ 70.617101][ T5069] el0_svc_common+0x13c/0x258 [ 70.617905][ T5069] do_el0_svc+0x5c/0x140 [ 70.618612][ T5069] el0_svc+0x78/0x1d0 [ 70.619338][ T5069] el0t_64_sync_handler+0xcc/0xe4 [ 70.620299][ T5069] el0t_64_sync+0x1a0/0x1a4 [ 70.622649][ T5069] BTRFS error (device loop0): failed to run delayed ref for logical 5255168 num_bytes 4096 type 176 action 2 ref_mod 1: -12 [ 70.624717][ T5069] ------------[ cut here ]------------ [ 70.625705][ T5069] WARNING: CPU: 1 PID: 5069 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e8/0x460 [ 70.627420][ T5069] Modules linked in: [ 70.628213][ T5069] CPU: 1 PID: 5069 Comm: syz.0.31 Tainted: G W syzkaller #0 [ 70.629878][ T5069] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 70.631875][ T5069] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 70.633486][ T5069] pc : btrfs_run_delayed_refs+0x3e8/0x460 [ 70.634664][ T5069] lr : btrfs_run_delayed_refs+0x3e8/0x460 [ 70.635835][ T5069] sp : ffff8000213777d0 [ 70.636682][ T5069] x29: ffff8000213777e0 x28: ffff0000d49d2000 x27: dfff800000000000 [ 70.638322][ T5069] x26: dfff800000000000 x25: ffff0000deede6e0 x24: 1fffe0001bddbce7 [ 70.639845][ T5069] x23: ffff0000deede738 x22: 00000000fffffff4 x21: 0000000000000000 [ 70.641391][ T5069] x20: 00000000fffffff4 x19: ffff0000deede6e0 x18: 0000000000000000 [ 70.642902][ T5069] x17: 0000000000000000 x16: ffff80001134e478 x15: 0000000000000000 [ 70.644443][ T5069] x14: 0000000000000001 x13: 1fffe000341d2dab x12: 0000000000000000 [ 70.645962][ T5069] x11: ff8080000830061c x10: 0000000000000000 x9 : 69d1ccf1a99bf400 [ 70.647371][ T5069] x8 : 69d1ccf1a99bf400 x7 : 0000000000000001 x6 : 0000000000000001 [ 70.648811][ T5069] x5 : ffff8000213770d8 x4 : ffff80001446f500 x3 : ffff80000850f688 [ 70.650231][ T5069] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 70.651736][ T5069] Call trace: [ 70.652347][ T5069] btrfs_run_delayed_refs+0x3e8/0x460 [ 70.653348][ T5069] btrfs_commit_transaction+0x1d8/0x30ac [ 70.654422][ T5069] btrfs_ioctl_set_fslabel+0x2f8/0x3c8 [ 70.655402][ T5069] btrfs_ioctl+0x50c/0xa8c [ 70.656203][ T5069] __arm64_sys_ioctl+0x14c/0x1c8 [ 70.657042][ T5069] invoke_syscall+0x98/0x28c [ 70.657797][ T5069] el0_svc_common+0x13c/0x258 [ 70.658611][ T5069] do_el0_svc+0x5c/0x140 [ 70.659348][ T5069] el0_svc+0x78/0x1d0 [ 70.660024][ T5069] el0t_64_sync_handler+0xcc/0xe4 [ 70.660941][ T5069] el0t_64_sync+0x1a0/0x1a4 [ 70.661700][ T5069] irq event stamp: 79582 [ 70.662439][ T5069] hardirqs last enabled at (79581): [] __up_console_sem+0xb4/0xfc [ 70.664072][ T5069] hardirqs last disabled at (79582): [] el1_dbg+0x24/0x80 [ 70.665633][ T5069] softirqs last enabled at (79550): [] handle_softirqs+0xa70/0xc14 [ 70.667289][ T5069] softirqs last disabled at (79523): [] __irq_exit_rcu+0x240/0x434 [ 70.668929][ T5069] ---[ end trace 2bc8cb018f005b34 ]--- [ 70.672069][ T5069] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 70.714131][ T4731] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 9 /dev/loop0 scanned by udevd (4731) [ 70.826017][ T5091] set_capacity_and_notify: 6 callbacks suppressed [ 70.826026][ T5091] loop0: detected capacity change from 0 to 32768 [ 70.839354][ T5091] btrfs_printk: 104 callbacks suppressed [ 70.839364][ T5091] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 70.841834][ T5091] BTRFS info (device loop0): enabling auto defrag [ 70.842847][ T5091] BTRFS info (device loop0): enabling ssd optimizations [ 70.844013][ T5091] BTRFS info (device loop0): using spread ssd allocation scheme [ 70.845521][ T5091] BTRFS info (device loop0): max_inline at 0 [ 70.846456][ T5091] BTRFS info (device loop0): force clearing of disk cache [ 70.848277][ T5091] BTRFS info (device loop0): turning on sync discard [ 70.849448][ T5091] BTRFS info (device loop0): disabling free space tree [ 70.850632][ T5091] BTRFS info (device loop0): has skinny extents [ 70.865998][ T5091] BTRFS info (device loop0): clearing free space tree [ 70.867357][ T5091] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 70.869032][ T5091] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 70.874236][ T5091] FAULT_INJECTION: forcing a failure. [ 70.874236][ T5091] name failslab, interval 1, probability 0, space 0, times 0 [ 70.876274][ T5091] CPU: 0 PID: 5091 Comm: syz.0.32 Tainted: G W syzkaller #0 [ 70.878081][ T5091] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 70.879842][ T5091] Call trace: [ 70.880450][ T5091] dump_backtrace+0x0/0x458 [ 70.881228][ T5091] show_stack+0x2c/0x3c [ 70.881958][ T5091] __dump_stack+0x30/0x40 [ 70.882686][ T5091] dump_stack_lvl+0xf4/0x15c [ 70.883537][ T5091] dump_stack+0x1c/0x5c [ 70.884283][ T5091] should_fail+0x3c8/0x520 [ 70.885089][ T5091] __should_failslab+0xbc/0x10c [ 70.885934][ T5091] should_failslab+0x10/0x28 [ 70.886735][ T5091] slab_pre_alloc_hook+0x64/0xe8 [ 70.887627][ T5091] kmem_cache_alloc+0x94/0x3d8 [ 70.888469][ T5091] btrfs_alloc_path+0x5c/0x68 [ 70.889277][ T5091] __btrfs_free_extent+0x1a4/0x1ae0 [ 70.890209][ T5091] __btrfs_run_delayed_refs+0xc00/0x3484 [ 70.891182][ T5091] btrfs_run_delayed_refs+0x11c/0x460 [ 70.892106][ T5091] btrfs_commit_transaction+0x1d8/0x30ac [ 70.893130][ T5091] btrfs_ioctl_set_fslabel+0x2f8/0x3c8 [ 70.894082][ T5091] btrfs_ioctl+0x50c/0xa8c [ 70.894885][ T5091] __arm64_sys_ioctl+0x14c/0x1c8 [ 70.895804][ T5091] invoke_syscall+0x98/0x28c [ 70.896578][ T5091] el0_svc_common+0x13c/0x258 [ 70.897436][ T5091] do_el0_svc+0x5c/0x140 [ 70.898154][ T5091] el0_svc+0x78/0x1d0 [ 70.898849][ T5091] el0t_64_sync_handler+0xcc/0xe4 [ 70.899702][ T5091] el0t_64_sync+0x1a0/0x1a4 [ 70.902154][ T5091] BTRFS error (device loop0): failed to run delayed ref for logical 5255168 num_bytes 4096 type 176 action 2 ref_mod 1: -12 [ 70.904406][ T5091] ------------[ cut here ]------------ [ 70.905506][ T5091] WARNING: CPU: 0 PID: 5091 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e8/0x460 [ 70.907217][ T5091] Modules linked in: [ 70.907904][ T5091] CPU: 0 PID: 5091 Comm: syz.0.32 Tainted: G W syzkaller #0 [ 70.909358][ T5091] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 70.911065][ T5091] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 70.912367][ T5091] pc : btrfs_run_delayed_refs+0x3e8/0x460 [ 70.913388][ T5091] lr : btrfs_run_delayed_refs+0x3e8/0x460 [ 70.914360][ T5091] sp : ffff8000213677d0 [ 70.915065][ T5091] x29: ffff8000213677e0 x28: ffff0000c79de000 x27: dfff800000000000 [ 70.916479][ T5091] x26: dfff800000000000 x25: ffff0000deeda2c0 x24: 1fffe0001bddb463 [ 70.917862][ T5091] x23: ffff0000deeda318 x22: 00000000fffffff4 x21: 0000000000000000 [ 70.919244][ T5091] x20: 00000000fffffff4 x19: ffff0000deeda2c0 x18: 0000000000000000 [ 70.920566][ T5091] x17: 0000000000000000 x16: ffff80001134e478 x15: 0000000000000000 [ 70.921984][ T5091] x14: 0000000000000001 x13: 1fffe000341cebab x12: 0000000000000000 [ 70.923367][ T5091] x11: ff8080000830061c x10: 0000000000000000 x9 : fe93feabba796600 [ 70.924801][ T5091] x8 : fe93feabba796600 x7 : 0000000000000001 x6 : 0000000000000001 [ 70.926262][ T5091] x5 : ffff8000213670d8 x4 : ffff80001446f500 x3 : ffff80000850f688 [ 70.927681][ T5091] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 70.929079][ T5091] Call trace: [ 70.929659][ T5091] btrfs_run_delayed_refs+0x3e8/0x460 [ 70.930558][ T5091] btrfs_commit_transaction+0x1d8/0x30ac [ 70.931553][ T5091] btrfs_ioctl_set_fslabel+0x2f8/0x3c8 [ 70.932537][ T5091] btrfs_ioctl+0x50c/0xa8c [ 70.933313][ T5091] __arm64_sys_ioctl+0x14c/0x1c8 [ 70.934190][ T5091] invoke_syscall+0x98/0x28c [ 70.935048][ T5091] el0_svc_common+0x13c/0x258 [ 70.935843][ T5091] do_el0_svc+0x5c/0x140 [ 70.936576][ T5091] el0_svc+0x78/0x1d0 [ 70.937276][ T5091] el0t_64_sync_handler+0xcc/0xe4 [ 70.938133][ T5091] el0t_64_sync+0x1a0/0x1a4 [ 70.938885][ T5091] irq event stamp: 80046 [ 70.939626][ T5091] hardirqs last enabled at (80045): [] __up_console_sem+0xb4/0xfc [ 70.941288][ T5091] hardirqs last disabled at (80046): [] el1_dbg+0x24/0x80 [ 70.942877][ T5091] softirqs last enabled at (80014): [] handle_softirqs+0xa70/0xc14 [ 70.944555][ T5091] softirqs last disabled at (79939): [] __irq_exit_rcu+0x240/0x434 [ 70.946309][ T5091] ---[ end trace 2bc8cb018f005b35 ]--- [ 70.949417][ T5091] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 70.951115][ T5091] BTRFS info (device loop0): forced readonly 1970/01/01 00:01:10 executed programs: 19 [ 71.128759][ T5114] loop0: detected capacity change from 0 to 32768 [ 71.177986][ T5114] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.33 (5114) [ 71.217624][ T5114] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 71.219079][ T5114] BTRFS info (device loop0): enabling auto defrag [ 71.220167][ T5114] BTRFS info (device loop0): enabling ssd optimizations [ 71.221959][ T5114] BTRFS info (device loop0): using spread ssd allocation scheme [ 71.223370][ T5114] BTRFS info (device loop0): max_inline at 0 [ 71.224433][ T5114] BTRFS info (device loop0): force clearing of disk cache [ 71.225647][ T5114] BTRFS info (device loop0): turning on sync discard [ 71.227432][ T5114] BTRFS info (device loop0): disabling free space tree [ 71.228625][ T5114] BTRFS info (device loop0): has skinny extents [ 71.236159][ T5114] BTRFS info (device loop0): clearing free space tree [ 71.237531][ T5114] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 71.239197][ T5114] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 71.245002][ T5114] FAULT_INJECTION: forcing a failure. [ 71.245002][ T5114] name failslab, interval 1, probability 0, space 0, times 0 [ 71.247697][ T5114] CPU: 0 PID: 5114 Comm: syz.0.33 Tainted: G W syzkaller #0 [ 71.249230][ T5114] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 71.250986][ T5114] Call trace: [ 71.251536][ T5114] dump_backtrace+0x0/0x458 [ 71.252329][ T5114] show_stack+0x2c/0x3c [ 71.253029][ T5114] __dump_stack+0x30/0x40 [ 71.253784][ T5114] dump_stack_lvl+0xf4/0x15c [ 71.254583][ T5114] dump_stack+0x1c/0x5c [ 71.255254][ T5114] should_fail+0x3c8/0x520 [ 71.255960][ T5114] __should_failslab+0xbc/0x10c [ 71.256792][ T5114] should_failslab+0x10/0x28 [ 71.257531][ T5114] slab_pre_alloc_hook+0x64/0xe8 [ 71.258439][ T5114] kmem_cache_alloc+0x94/0x3d8 [ 71.259231][ T5114] btrfs_alloc_path+0x5c/0x68 [ 71.260057][ T5114] __btrfs_free_extent+0x1a4/0x1ae0 [ 71.260954][ T5114] __btrfs_run_delayed_refs+0xc00/0x3484 [ 71.261945][ T5114] btrfs_run_delayed_refs+0x11c/0x460 [ 71.262842][ T5114] btrfs_commit_transaction+0x1d8/0x30ac [ 71.263850][ T5114] btrfs_ioctl_set_fslabel+0x2f8/0x3c8 [ 71.264840][ T5114] btrfs_ioctl+0x50c/0xa8c [ 71.265592][ T5114] __arm64_sys_ioctl+0x14c/0x1c8 [ 71.266480][ T5114] invoke_syscall+0x98/0x28c [ 71.267271][ T5114] el0_svc_common+0x13c/0x258 [ 71.268078][ T5114] do_el0_svc+0x5c/0x140 [ 71.268804][ T5114] el0_svc+0x78/0x1d0 [ 71.269472][ T5114] el0t_64_sync_handler+0xcc/0xe4 [ 71.270331][ T5114] el0t_64_sync+0x1a0/0x1a4 [ 71.272641][ T5114] BTRFS error (device loop0): failed to run delayed ref for logical 5255168 num_bytes 4096 type 176 action 2 ref_mod 1: -12 [ 71.275073][ T5114] ------------[ cut here ]------------ [ 71.276081][ T5114] WARNING: CPU: 0 PID: 5114 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e8/0x460 [ 71.277744][ T5114] Modules linked in: [ 71.278461][ T5114] CPU: 0 PID: 5114 Comm: syz.0.33 Tainted: G W syzkaller #0 [ 71.279995][ T5114] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 71.281918][ T5114] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 71.283415][ T5114] pc : btrfs_run_delayed_refs+0x3e8/0x460 [ 71.284496][ T5114] lr : btrfs_run_delayed_refs+0x3e8/0x460 [ 71.285533][ T5114] sp : ffff8000214b77d0 [ 71.286272][ T5114] x29: ffff8000214b77e0 x28: ffff0000d6ecb000 x27: dfff800000000000 [ 71.287731][ T5114] x26: dfff800000000000 x25: ffff0000deeda630 x24: 1fffe0001bddb4d1 [ 71.289235][ T5114] x23: ffff0000deeda688 x22: 00000000fffffff4 x21: 0000000000000000 [ 71.290611][ T5114] x20: 00000000fffffff4 x19: ffff0000deeda630 x18: 0000000000000000 [ 71.292119][ T5114] x17: 0000000000000000 x16: ffff80001134e478 x15: 0000000000000000 [ 71.293558][ T5114] x14: 0000000000000001 x13: 1fffe000341cebab x12: 0000000000000000 [ 71.295011][ T5114] x11: ff8080000830061c x10: 0000000000000000 x9 : af5db0396dcbcb00 [ 71.296474][ T5114] x8 : af5db0396dcbcb00 x7 : 0000000000000001 x6 : 0000000000000001 [ 71.297876][ T5114] x5 : ffff8000214b70d8 x4 : ffff80001446f500 x3 : ffff80000850f688 [ 71.299230][ T5114] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 71.300649][ T5114] Call trace: [ 71.301211][ T5114] btrfs_run_delayed_refs+0x3e8/0x460 [ 71.302106][ T5114] btrfs_commit_transaction+0x1d8/0x30ac [ 71.303116][ T5114] btrfs_ioctl_set_fslabel+0x2f8/0x3c8 [ 71.304039][ T5114] btrfs_ioctl+0x50c/0xa8c [ 71.304779][ T5114] __arm64_sys_ioctl+0x14c/0x1c8 [ 71.305591][ T5114] invoke_syscall+0x98/0x28c [ 71.306424][ T5114] el0_svc_common+0x13c/0x258 [ 71.307207][ T5114] do_el0_svc+0x5c/0x140 [ 71.307955][ T5114] el0_svc+0x78/0x1d0 [ 71.308658][ T5114] el0t_64_sync_handler+0xcc/0xe4 [ 71.309525][ T5114] el0t_64_sync+0x1a0/0x1a4 [ 71.310329][ T5114] irq event stamp: 79818 [ 71.311030][ T5114] hardirqs last enabled at (79817): [] __up_console_sem+0xb4/0xfc [ 71.312660][ T5114] hardirqs last disabled at (79818): [] el1_dbg+0x24/0x80 [ 71.314167][ T5114] softirqs last enabled at (79782): [] handle_softirqs+0xa70/0xc14 [ 71.315841][ T5114] softirqs last disabled at (79765): [] __irq_exit_rcu+0x240/0x434 [ 71.317670][ T5114] ---[ end trace 2bc8cb018f005b36 ]--- [ 71.320772][ T5114] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 71.322338][ T5114] BTRFS info (device loop0): forced readonly [ 71.499113][ T5138] loop0: detected capacity change from 0 to 32768 [ 71.549745][ T5138] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.34 (5138) [ 71.555358][ T5138] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 71.557313][ T5138] BTRFS info (device loop0): enabling auto defrag [ 71.558509][ T5138] BTRFS info (device loop0): enabling ssd optimizations [ 71.559642][ T5138] BTRFS info (device loop0): using spread ssd allocation scheme [ 71.560945][ T5138] BTRFS info (device loop0): max_inline at 0 [ 71.561907][ T5138] BTRFS info (device loop0): force clearing of disk cache [ 71.563017][ T5138] BTRFS info (device loop0): turning on sync discard [ 71.564132][ T5138] BTRFS info (device loop0): disabling free space tree [ 71.565479][ T5138] BTRFS info (device loop0): has skinny extents [ 71.573976][ T5138] BTRFS info (device loop0): clearing free space tree [ 71.575154][ T5138] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 71.577192][ T5138] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 71.582247][ T5138] FAULT_INJECTION: forcing a failure. [ 71.582247][ T5138] name failslab, interval 1, probability 0, space 0, times 0 [ 71.584366][ T5138] CPU: 1 PID: 5138 Comm: syz.0.34 Tainted: G W syzkaller #0 [ 71.585741][ T5138] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 71.587485][ T5138] Call trace: [ 71.588098][ T5138] dump_backtrace+0x0/0x458 [ 71.588945][ T5138] show_stack+0x2c/0x3c [ 71.589658][ T5138] __dump_stack+0x30/0x40 [ 71.590296][ T5138] dump_stack_lvl+0xf4/0x15c [ 71.591016][ T5138] dump_stack+0x1c/0x5c [ 71.591736][ T5138] should_fail+0x3c8/0x520 [ 71.592489][ T5138] __should_failslab+0xbc/0x10c [ 71.593296][ T5138] should_failslab+0x10/0x28 [ 71.594098][ T5138] slab_pre_alloc_hook+0x64/0xe8 [ 71.594967][ T5138] kmem_cache_alloc+0x94/0x3d8 [ 71.595786][ T5138] btrfs_alloc_path+0x5c/0x68 [ 71.596819][ T5138] __btrfs_free_extent+0x1a4/0x1ae0 [ 71.597945][ T5138] __btrfs_run_delayed_refs+0xc00/0x3484 [ 71.599077][ T5138] btrfs_run_delayed_refs+0x11c/0x460 [ 71.600076][ T5138] btrfs_commit_transaction+0x1d8/0x30ac [ 71.601217][ T5138] btrfs_ioctl_set_fslabel+0x2f8/0x3c8 [ 71.602278][ T5138] btrfs_ioctl+0x50c/0xa8c [ 71.603069][ T5138] __arm64_sys_ioctl+0x14c/0x1c8 [ 71.603975][ T5138] invoke_syscall+0x98/0x28c [ 71.604804][ T5138] el0_svc_common+0x13c/0x258 [ 71.605693][ T5138] do_el0_svc+0x5c/0x140 [ 71.606408][ T5138] el0_svc+0x78/0x1d0 [ 71.607108][ T5138] el0t_64_sync_handler+0xcc/0xe4 [ 71.608018][ T5138] el0t_64_sync+0x1a0/0x1a4 [ 71.611184][ T5138] BTRFS error (device loop0): failed to run delayed ref for logical 5255168 num_bytes 4096 type 176 action 2 ref_mod 1: -12 [ 71.613304][ T5138] ------------[ cut here ]------------ [ 71.614300][ T5138] WARNING: CPU: 1 PID: 5138 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e8/0x460 [ 71.616013][ T5138] Modules linked in: [ 71.616642][ T5138] CPU: 1 PID: 5138 Comm: syz.0.34 Tainted: G W syzkaller #0 [ 71.618140][ T5138] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 71.619890][ T5138] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 71.621205][ T5138] pc : btrfs_run_delayed_refs+0x3e8/0x460 [ 71.622226][ T5138] lr : btrfs_run_delayed_refs+0x3e8/0x460 [ 71.623237][ T5138] sp : ffff8000214b77d0 [ 71.623940][ T5138] x29: ffff8000214b77e0 x28: ffff0000d6e67000 x27: dfff800000000000 [ 71.625324][ T5138] x26: dfff800000000000 x25: ffff0000deede4d0 x24: 1fffe0001bddbca5 [ 71.626671][ T5138] x23: ffff0000deede528 x22: 00000000fffffff4 x21: 0000000000000000 [ 71.627997][ T5138] x20: 00000000fffffff4 x19: ffff0000deede4d0 x18: 0000000000000000 [ 71.629417][ T5138] x17: 0000000000000000 x16: ffff80001134e478 x15: 0000000000000000 [ 71.630842][ T5138] x14: 0000000000000001 x13: 1fffe000341d2dab x12: 0000000000000000 [ 71.632291][ T5138] x11: ff8080000830061c x10: 0000000000000000 x9 : 57f830d5009bfb00 [ 71.633745][ T5138] x8 : 57f830d5009bfb00 x7 : 0000000000000001 x6 : 0000000000000001 [ 71.635162][ T5138] x5 : ffff8000214b70d8 x4 : ffff80001446f500 x3 : ffff80000850f688 [ 71.636709][ T5138] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 71.638176][ T5138] Call trace: [ 71.638741][ T5138] btrfs_run_delayed_refs+0x3e8/0x460 [ 71.639704][ T5138] btrfs_commit_transaction+0x1d8/0x30ac [ 71.640752][ T5138] btrfs_ioctl_set_fslabel+0x2f8/0x3c8 [ 71.641716][ T5138] btrfs_ioctl+0x50c/0xa8c [ 71.642487][ T5138] __arm64_sys_ioctl+0x14c/0x1c8 [ 71.643404][ T5138] invoke_syscall+0x98/0x28c [ 71.644204][ T5138] el0_svc_common+0x13c/0x258 [ 71.644996][ T5138] do_el0_svc+0x5c/0x140 [ 71.645728][ T5138] el0_svc+0x78/0x1d0 [ 71.646423][ T5138] el0t_64_sync_handler+0xcc/0xe4 [ 71.647313][ T5138] el0t_64_sync+0x1a0/0x1a4 [ 71.648121][ T5138] irq event stamp: 79820 [ 71.648858][ T5138] hardirqs last enabled at (79819): [] __up_console_sem+0xb4/0xfc [ 71.650550][ T5138] hardirqs last disabled at (79820): [] el1_dbg+0x24/0x80 [ 71.651970][ T5138] softirqs last enabled at (79784): [] handle_softirqs+0xa70/0xc14 [ 71.653643][ T5138] softirqs last disabled at (79723): [] __irq_exit_rcu+0x240/0x434 [ 71.655259][ T5138] ---[ end trace 2bc8cb018f005b37 ]--- [ 71.658330][ T5138] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 71.660165][ T5138] BTRFS info (device loop0): forced readonly [ 71.837571][ T5161] loop0: detected capacity change from 0 to 32768 [ 71.885275][ T5161] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.35 (5161) [ 71.890191][ T5161] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 71.891688][ T5161] BTRFS info (device loop0): enabling auto defrag [ 71.892862][ T5161] BTRFS info (device loop0): enabling ssd optimizations [ 71.894023][ T5161] BTRFS info (device loop0): using spread ssd allocation scheme [ 71.895284][ T5161] BTRFS info (device loop0): max_inline at 0 [ 71.896271][ T5161] BTRFS info (device loop0): force clearing of disk cache [ 71.898015][ T5161] BTRFS info (device loop0): turning on sync discard [ 71.899264][ T5161] BTRFS info (device loop0): disabling free space tree [ 71.900547][ T5161] BTRFS info (device loop0): has skinny extents [ 71.908321][ T5161] BTRFS info (device loop0): clearing free space tree [ 71.909617][ T5161] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 71.911265][ T5161] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 71.917200][ T5161] FAULT_INJECTION: forcing a failure. [ 71.917200][ T5161] name failslab, interval 1, probability 0, space 0, times 0 [ 71.919908][ T5161] CPU: 1 PID: 5161 Comm: syz.0.35 Tainted: G W syzkaller #0 [ 71.921375][ T5161] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 71.922976][ T5161] Call trace: [ 71.923524][ T5161] dump_backtrace+0x0/0x458 [ 71.924266][ T5161] show_stack+0x2c/0x3c [ 71.924934][ T5161] __dump_stack+0x30/0x40 [ 71.925662][ T5161] dump_stack_lvl+0xf4/0x15c [ 71.926417][ T5161] dump_stack+0x1c/0x5c [ 71.927194][ T5161] should_fail+0x3c8/0x520 [ 71.928049][ T5161] __should_failslab+0xbc/0x10c [ 71.928905][ T5161] should_failslab+0x10/0x28 [ 71.929712][ T5161] slab_pre_alloc_hook+0x64/0xe8 [ 71.930505][ T5161] kmem_cache_alloc+0x94/0x3d8 [ 71.931315][ T5161] btrfs_alloc_path+0x5c/0x68 [ 71.932172][ T5161] __btrfs_free_extent+0x1a4/0x1ae0 [ 71.933137][ T5161] __btrfs_run_delayed_refs+0xc00/0x3484 [ 71.934106][ T5161] btrfs_run_delayed_refs+0x11c/0x460 [ 71.935067][ T5161] btrfs_commit_transaction+0x1d8/0x30ac [ 71.936251][ T5161] btrfs_ioctl_set_fslabel+0x2f8/0x3c8 [ 71.937288][ T5161] btrfs_ioctl+0x50c/0xa8c [ 71.938090][ T5161] __arm64_sys_ioctl+0x14c/0x1c8 [ 71.938951][ T5161] invoke_syscall+0x98/0x28c [ 71.939817][ T5161] el0_svc_common+0x13c/0x258 [ 71.940659][ T5161] do_el0_svc+0x5c/0x140 [ 71.941444][ T5161] el0_svc+0x78/0x1d0 [ 71.942102][ T5161] el0t_64_sync_handler+0xcc/0xe4 [ 71.942924][ T5161] el0t_64_sync+0x1a0/0x1a4 [ 71.945451][ T5161] BTRFS error (device loop0): failed to run delayed ref for logical 5255168 num_bytes 4096 type 176 action 2 ref_mod 1: -12 [ 71.947843][ T5161] ------------[ cut here ]------------ [ 71.948843][ T5161] WARNING: CPU: 1 PID: 5161 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e8/0x460 [ 71.950404][ T5161] Modules linked in: [ 71.951021][ T5161] CPU: 1 PID: 5161 Comm: syz.0.35 Tainted: G W syzkaller #0 [ 71.952307][ T5161] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 71.954031][ T5161] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 71.955294][ T5161] pc : btrfs_run_delayed_refs+0x3e8/0x460 [ 71.956373][ T5161] lr : btrfs_run_delayed_refs+0x3e8/0x460 [ 71.957410][ T5161] sp : ffff8000214b77d0 [ 71.958126][ T5161] x29: ffff8000214b77e0 x28: ffff0000d6ecf000 x27: dfff800000000000 [ 71.959559][ T5161] x26: dfff800000000000 x25: ffff0000deedea50 x24: 1fffe0001bddbd55 [ 71.960928][ T5161] x23: ffff0000deedeaa8 x22: 00000000fffffff4 x21: 0000000000000000 [ 71.962573][ T5161] x20: 00000000fffffff4 x19: ffff0000deedea50 x18: 0000000000000000 [ 71.963975][ T5161] x17: 0000000000000000 x16: ffff80001134e478 x15: 0000000000000000 [ 71.965450][ T5161] x14: 0000000000000001 x13: 1fffe000341d2dab x12: 0000000000000000 [ 71.966819][ T5161] x11: ff8080000830061c x10: 0000000000000000 x9 : ba651e30702f9a00 [ 71.968260][ T5161] x8 : ba651e30702f9a00 x7 : 0000000000000001 x6 : 0000000000000001 [ 71.969704][ T5161] x5 : ffff8000214b70d8 x4 : ffff80001446f500 x3 : ffff80000850f688 [ 71.971053][ T5161] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 71.972416][ T5161] Call trace: [ 71.973014][ T5161] btrfs_run_delayed_refs+0x3e8/0x460 [ 71.973967][ T5161] btrfs_commit_transaction+0x1d8/0x30ac [ 71.975042][ T5161] btrfs_ioctl_set_fslabel+0x2f8/0x3c8 [ 71.975992][ T5161] btrfs_ioctl+0x50c/0xa8c [ 71.976749][ T5161] __arm64_sys_ioctl+0x14c/0x1c8 [ 71.977593][ T5161] invoke_syscall+0x98/0x28c [ 71.978447][ T5161] el0_svc_common+0x13c/0x258 [ 71.979212][ T5161] do_el0_svc+0x5c/0x140 [ 71.979913][ T5161] el0_svc+0x78/0x1d0 [ 71.980553][ T5161] el0t_64_sync_handler+0xcc/0xe4 [ 71.981369][ T5161] el0t_64_sync+0x1a0/0x1a4 [ 71.982140][ T5161] irq event stamp: 79288 [ 71.982858][ T5161] hardirqs last enabled at (79287): [] __up_console_sem+0xb4/0xfc [ 71.984472][ T5161] hardirqs last disabled at (79288): [] el1_dbg+0x24/0x80 [ 71.985975][ T5161] softirqs last enabled at (79266): [] handle_softirqs+0xa70/0xc14 [ 71.987660][ T5161] softirqs last disabled at (79255): [] __irq_exit_rcu+0x240/0x434 [ 71.989352][ T5161] ---[ end trace 2bc8cb018f005b38 ]--- [ 71.992368][ T5161] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 71.994006][ T5161] BTRFS info (device loop0): forced readonly [ 72.171311][ T5183] loop0: detected capacity change from 0 to 32768 [ 72.181613][ T5183] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.36 (5183) [ 72.190489][ T5183] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 72.192000][ T5183] BTRFS info (device loop0): enabling auto defrag [ 72.193092][ T5183] BTRFS info (device loop0): enabling ssd optimizations [ 72.194358][ T5183] BTRFS info (device loop0): using spread ssd allocation scheme [ 72.195656][ T5183] BTRFS info (device loop0): max_inline at 0 [ 72.196743][ T5183] BTRFS info (device loop0): force clearing of disk cache [ 72.197996][ T5183] BTRFS info (device loop0): turning on sync discard [ 72.199195][ T5183] BTRFS info (device loop0): disabling free space tree [ 72.200423][ T5183] BTRFS info (device loop0): has skinny extents [ 72.277216][ T5183] BTRFS info (device loop0): clearing free space tree [ 72.278567][ T5183] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 72.280125][ T5183] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 72.285291][ T5183] FAULT_INJECTION: forcing a failure. [ 72.285291][ T5183] name failslab, interval 1, probability 0, space 0, times 0 [ 72.288210][ T5183] CPU: 0 PID: 5183 Comm: syz.0.36 Tainted: G W syzkaller #0 [ 72.289683][ T5183] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 72.291431][ T5183] Call trace: [ 72.291985][ T5183] dump_backtrace+0x0/0x458 [ 72.292883][ T5183] show_stack+0x2c/0x3c [ 72.293603][ T5183] __dump_stack+0x30/0x40 [ 72.294381][ T5183] dump_stack_lvl+0xf4/0x15c [ 72.295191][ T5183] dump_stack+0x1c/0x5c [ 72.295960][ T5183] should_fail+0x3c8/0x520 [ 72.296781][ T5183] __should_failslab+0xbc/0x10c [ 72.297622][ T5183] should_failslab+0x10/0x28 [ 72.298430][ T5183] slab_pre_alloc_hook+0x64/0xe8 [ 72.299357][ T5183] kmem_cache_alloc+0x94/0x3d8 [ 72.300166][ T5183] btrfs_alloc_path+0x5c/0x68 [ 72.300990][ T5183] __btrfs_free_extent+0x1a4/0x1ae0 [ 72.301942][ T5183] __btrfs_run_delayed_refs+0xc00/0x3484 [ 72.302893][ T5183] btrfs_run_delayed_refs+0x11c/0x460 [ 72.303976][ T5183] btrfs_commit_transaction+0x1d8/0x30ac [ 72.305079][ T5183] btrfs_ioctl_set_fslabel+0x2f8/0x3c8 [ 72.306106][ T5183] btrfs_ioctl+0x50c/0xa8c [ 72.306890][ T5183] __arm64_sys_ioctl+0x14c/0x1c8 [ 72.307788][ T5183] invoke_syscall+0x98/0x28c [ 72.308578][ T5183] el0_svc_common+0x13c/0x258 [ 72.309390][ T5183] do_el0_svc+0x5c/0x140 [ 72.310178][ T5183] el0_svc+0x78/0x1d0 [ 72.310921][ T5183] el0t_64_sync_handler+0xcc/0xe4 [ 72.311885][ T5183] el0t_64_sync+0x1a0/0x1a4 [ 72.314157][ T5183] BTRFS error (device loop0): failed to run delayed ref for logical 5255168 num_bytes 4096 type 176 action 2 ref_mod 1: -12 [ 72.316300][ T5183] ------------[ cut here ]------------ [ 72.317684][ T5183] WARNING: CPU: 0 PID: 5183 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e8/0x460 [ 72.319347][ T5183] Modules linked in: [ 72.319959][ T5183] CPU: 0 PID: 5183 Comm: syz.0.36 Tainted: G W syzkaller #0 [ 72.321365][ T5183] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 72.323054][ T5183] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 72.324363][ T5183] pc : btrfs_run_delayed_refs+0x3e8/0x460 [ 72.325343][ T5183] lr : btrfs_run_delayed_refs+0x3e8/0x460 [ 72.326319][ T5183] sp : ffff8000214b77d0 [ 72.327029][ T5183] x29: ffff8000214b77e0 x28: ffff0000dca24000 x27: dfff800000000000 [ 72.328485][ T5183] x26: dfff800000000000 x25: ffff0000deeda8f0 x24: 1fffe0001bddb529 [ 72.329987][ T5183] x23: ffff0000deeda948 x22: 00000000fffffff4 x21: 0000000000000000 [ 72.331409][ T5183] x20: 00000000fffffff4 x19: ffff0000deeda8f0 x18: 0000000000000000 [ 72.332854][ T5183] x17: 0000000000000000 x16: ffff80001134e478 x15: 0000000000000000 [ 72.334314][ T5183] x14: 0000000000000001 x13: 1fffe000341cebab x12: 0000000000000000 [ 72.335801][ T5183] x11: ff8080000830061c x10: 0000000000000000 x9 : bcaf84b2cf186e00 [ 72.337261][ T5183] x8 : bcaf84b2cf186e00 x7 : 0000000000000001 x6 : 0000000000000001 [ 72.338691][ T5183] x5 : ffff8000214b70d8 x4 : ffff80001446f500 x3 : ffff80000850f688 [ 72.340205][ T5183] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 72.341560][ T5183] Call trace: [ 72.342152][ T5183] btrfs_run_delayed_refs+0x3e8/0x460 [ 72.343131][ T5183] btrfs_commit_transaction+0x1d8/0x30ac [ 72.344153][ T5183] btrfs_ioctl_set_fslabel+0x2f8/0x3c8 [ 72.345092][ T5183] btrfs_ioctl+0x50c/0xa8c [ 72.345840][ T5183] __arm64_sys_ioctl+0x14c/0x1c8 [ 72.346730][ T5183] invoke_syscall+0x98/0x28c [ 72.347567][ T5183] el0_svc_common+0x13c/0x258 [ 72.348392][ T5183] do_el0_svc+0x5c/0x140 [ 72.349103][ T5183] el0_svc+0x78/0x1d0 [ 72.349817][ T5183] el0t_64_sync_handler+0xcc/0xe4 [ 72.350660][ T5183] el0t_64_sync+0x1a0/0x1a4 [ 72.351453][ T5183] irq event stamp: 79310 [ 72.352198][ T5183] hardirqs last enabled at (79309): [] __up_console_sem+0xb4/0xfc [ 72.353810][ T5183] hardirqs last disabled at (79310): [] el1_dbg+0x24/0x80 [ 72.355327][ T5183] softirqs last enabled at (79298): [] handle_softirqs+0xa70/0xc14 [ 72.356973][ T5183] softirqs last disabled at (79283): [] __irq_exit_rcu+0x240/0x434 [ 72.358764][ T5183] ---[ end trace 2bc8cb018f005b39 ]--- [ 72.363657][ T5183] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 72.365271][ T5183] BTRFS info (device loop0): forced readonly [ 72.540382][ T5205] loop0: detected capacity change from 0 to 32768 [ 72.544792][ T5205] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.37 (5205) [ 72.548896][ T5205] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 72.550487][ T5205] BTRFS info (device loop0): enabling auto defrag [ 72.551690][ T5205] BTRFS info (device loop0): enabling ssd optimizations [ 72.552890][ T5205] BTRFS info (device loop0): using spread ssd allocation scheme [ 72.554175][ T5205] BTRFS info (device loop0): max_inline at 0 [ 72.555224][ T5205] BTRFS info (device loop0): force clearing of disk cache [ 72.557056][ T5205] BTRFS info (device loop0): turning on sync discard [ 72.558194][ T5205] BTRFS info (device loop0): disabling free space tree [ 72.559326][ T5205] BTRFS info (device loop0): has skinny extents [ 72.614243][ T5205] BTRFS info (device loop0): clearing free space tree [ 72.615491][ T5205] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 72.617661][ T5205] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 72.623217][ T5205] FAULT_INJECTION: forcing a failure. [ 72.623217][ T5205] name failslab, interval 1, probability 0, space 0, times 0 [ 72.625324][ T5205] CPU: 0 PID: 5205 Comm: syz.0.37 Tainted: G W syzkaller #0 [ 72.626826][ T5205] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 72.628633][ T5205] Call trace: [ 72.629193][ T5205] dump_backtrace+0x0/0x458 [ 72.630034][ T5205] show_stack+0x2c/0x3c [ 72.630763][ T5205] __dump_stack+0x30/0x40 [ 72.631509][ T5205] dump_stack_lvl+0xf4/0x15c [ 72.632319][ T5205] dump_stack+0x1c/0x5c [ 72.633062][ T5205] should_fail+0x3c8/0x520 [ 72.633843][ T5205] __should_failslab+0xbc/0x10c [ 72.634708][ T5205] should_failslab+0x10/0x28 [ 72.635504][ T5205] slab_pre_alloc_hook+0x64/0xe8 [ 72.636332][ T5205] kmem_cache_alloc+0x94/0x3d8 [ 72.637116][ T5205] btrfs_alloc_path+0x5c/0x68 [ 72.637907][ T5205] __btrfs_run_delayed_refs+0xe6c/0x3484 [ 72.638857][ T5205] btrfs_run_delayed_refs+0x11c/0x460 [ 72.639793][ T5205] btrfs_commit_transaction+0x1d8/0x30ac [ 72.640738][ T5205] btrfs_ioctl_set_fslabel+0x2f8/0x3c8 [ 72.641700][ T5205] btrfs_ioctl+0x50c/0xa8c [ 72.642468][ T5205] __arm64_sys_ioctl+0x14c/0x1c8 [ 72.643290][ T5205] invoke_syscall+0x98/0x28c [ 72.644057][ T5205] el0_svc_common+0x13c/0x258 [ 72.644850][ T5205] do_el0_svc+0x5c/0x140 [ 72.645571][ T5205] el0_svc+0x78/0x1d0 [ 72.646269][ T5205] el0t_64_sync_handler+0xcc/0xe4 [ 72.647129][ T5205] el0t_64_sync+0x1a0/0x1a4 [ 72.650056][ T5205] BTRFS error (device loop0): failed to run delayed ref for logical 5246976 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 72.652017][ T5205] ------------[ cut here ]------------ [ 72.653023][ T5205] WARNING: CPU: 0 PID: 5205 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e8/0x460 [ 72.654629][ T5205] Modules linked in: [ 72.655243][ T5205] CPU: 0 PID: 5205 Comm: syz.0.37 Tainted: G W syzkaller #0 [ 72.656616][ T5205] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 72.658386][ T5205] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 72.659813][ T5205] pc : btrfs_run_delayed_refs+0x3e8/0x460 [ 72.660781][ T5205] lr : btrfs_run_delayed_refs+0x3e8/0x460 [ 72.661690][ T5205] sp : ffff8000217d77d0 [ 72.662386][ T5205] x29: ffff8000217d77e0 x28: ffff0000c0cb3000 x27: dfff800000000000 [ 72.663764][ T5205] x26: dfff800000000000 x25: ffff0000deeda9a0 x24: 1fffe0001bddb53f [ 72.665156][ T5205] x23: ffff0000deeda9f8 x22: 00000000fffffff4 x21: 0000000000000000 [ 72.666568][ T5205] x20: 00000000fffffff4 x19: ffff0000deeda9a0 x18: 0000000000000000 [ 72.668141][ T5205] x17: 0000000000000000 x16: ffff80001134e478 x15: 0000000000000000 [ 72.669528][ T5205] x14: 0000000000000001 x13: 1fffe000341cebab x12: 0000000000000000 [ 72.670989][ T5205] x11: ff8080000830061c x10: 0000000000000000 x9 : a7800019eb8a9700 [ 72.672491][ T5205] x8 : a7800019eb8a9700 x7 : 0000000000000001 x6 : 0000000000000001 [ 72.673853][ T5205] x5 : ffff8000217d70d8 x4 : ffff80001446f500 x3 : ffff80000850f688 [ 72.675413][ T5205] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 72.676798][ T5205] Call trace: [ 72.677383][ T5205] btrfs_run_delayed_refs+0x3e8/0x460 [ 72.678338][ T5205] btrfs_commit_transaction+0x1d8/0x30ac [ 72.679319][ T5205] btrfs_ioctl_set_fslabel+0x2f8/0x3c8 [ 72.680237][ T5205] btrfs_ioctl+0x50c/0xa8c [ 72.680975][ T5205] __arm64_sys_ioctl+0x14c/0x1c8 [ 72.681768][ T5205] invoke_syscall+0x98/0x28c [ 72.682591][ T5205] el0_svc_common+0x13c/0x258 [ 72.683404][ T5205] do_el0_svc+0x5c/0x140 [ 72.684140][ T5205] el0_svc+0x78/0x1d0 [ 72.684865][ T5205] el0t_64_sync_handler+0xcc/0xe4 [ 72.685751][ T5205] el0t_64_sync+0x1a0/0x1a4 [ 72.686491][ T5205] irq event stamp: 79852 [ 72.687205][ T5205] hardirqs last enabled at (79851): [] __up_console_sem+0xb4/0xfc [ 72.688893][ T5205] hardirqs last disabled at (79852): [] el1_dbg+0x24/0x80 [ 72.690400][ T5205] softirqs last enabled at (79818): [] handle_softirqs+0xa70/0xc14 [ 72.692005][ T5205] softirqs last disabled at (79747): [] __irq_exit_rcu+0x240/0x434 [ 72.693607][ T5205] ---[ end trace 2bc8cb018f005b3a ]--- [ 72.695489][ T5205] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 72.699198][ T5205] BTRFS info (device loop0): forced readonly [ 72.878462][ T5228] loop0: detected capacity change from 0 to 32768 [ 72.921860][ T5228] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.38 (5228) [ 72.925582][ T5228] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 72.927082][ T5228] BTRFS info (device loop0): enabling auto defrag [ 72.928145][ T5228] BTRFS info (device loop0): enabling ssd optimizations [ 72.929276][ T5228] BTRFS info (device loop0): using spread ssd allocation scheme [ 72.930587][ T5228] BTRFS info (device loop0): max_inline at 0 [ 72.931630][ T5228] BTRFS info (device loop0): force clearing of disk cache [ 72.932693][ T5228] BTRFS info (device loop0): turning on sync discard [ 72.933815][ T5228] BTRFS info (device loop0): disabling free space tree [ 72.935979][ T5228] BTRFS info (device loop0): has skinny extents [ 72.951055][ T5228] BTRFS info (device loop0): clearing free space tree [ 72.952221][ T5228] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 72.953936][ T5228] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 72.959679][ T5228] FAULT_INJECTION: forcing a failure. [ 72.959679][ T5228] name failslab, interval 1, probability 0, space 0, times 0 [ 72.961839][ T5228] CPU: 0 PID: 5228 Comm: syz.0.38 Tainted: G W syzkaller #0 [ 72.963221][ T5228] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 72.964858][ T5228] Call trace: [ 72.965365][ T5228] dump_backtrace+0x0/0x458 [ 72.966087][ T5228] show_stack+0x2c/0x3c [ 72.966831][ T5228] __dump_stack+0x30/0x40 [ 72.967532][ T5228] dump_stack_lvl+0xf4/0x15c [ 72.968276][ T5228] dump_stack+0x1c/0x5c [ 72.968971][ T5228] should_fail+0x3c8/0x520 [ 72.969697][ T5228] __should_failslab+0xbc/0x10c [ 72.970755][ T5228] should_failslab+0x10/0x28 [ 72.971706][ T5228] slab_pre_alloc_hook+0x64/0xe8 [ 72.972746][ T5228] kmem_cache_alloc+0x94/0x3d8 [ 72.973642][ T5228] btrfs_alloc_path+0x5c/0x68 [ 72.974458][ T5228] __btrfs_free_extent+0x1a4/0x1ae0 [ 72.975353][ T5228] __btrfs_run_delayed_refs+0xc00/0x3484 [ 72.976347][ T5228] btrfs_run_delayed_refs+0x11c/0x460 [ 72.977241][ T5228] btrfs_commit_transaction+0x1d8/0x30ac [ 72.978232][ T5228] btrfs_ioctl_set_fslabel+0x2f8/0x3c8 [ 72.979155][ T5228] btrfs_ioctl+0x50c/0xa8c [ 72.979922][ T5228] __arm64_sys_ioctl+0x14c/0x1c8 [ 72.980738][ T5228] invoke_syscall+0x98/0x28c [ 72.981522][ T5228] el0_svc_common+0x13c/0x258 [ 72.982429][ T5228] do_el0_svc+0x5c/0x140 [ 72.983215][ T5228] el0_svc+0x78/0x1d0 [ 72.983962][ T5228] el0t_64_sync_handler+0xcc/0xe4 [ 72.984902][ T5228] el0t_64_sync+0x1a0/0x1a4 [ 72.986084][ T5228] BTRFS error (device loop0): failed to run delayed ref for logical 5255168 num_bytes 4096 type 176 action 2 ref_mod 1: -12 [ 72.988452][ T5228] ------------[ cut here ]------------ [ 72.989424][ T5228] WARNING: CPU: 0 PID: 5228 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e8/0x460 [ 72.990982][ T5228] Modules linked in: [ 72.991681][ T5228] CPU: 0 PID: 5228 Comm: syz.0.38 Tainted: G W syzkaller #0 [ 72.993037][ T5228] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 72.994699][ T5228] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 72.995962][ T5228] pc : btrfs_run_delayed_refs+0x3e8/0x460 [ 72.997038][ T5228] lr : btrfs_run_delayed_refs+0x3e8/0x460 [ 72.998122][ T5228] sp : ffff8000219277d0 [ 72.998883][ T5228] x29: ffff8000219277e0 x28: ffff0000d9676000 x27: dfff800000000000 [ 73.000303][ T5228] x26: dfff800000000000 x25: ffff0000deeda0b0 x24: 1fffe0001bddb421 [ 73.001632][ T5228] x23: ffff0000deeda108 x22: 00000000fffffff4 x21: 0000000000000000 [ 73.002980][ T5228] x20: 00000000fffffff4 x19: ffff0000deeda0b0 x18: 0000000000000000 [ 73.004378][ T5228] x17: 0000000000000000 x16: ffff80001134e478 x15: 0000000000000000 [ 73.005730][ T5228] x14: 0000000000000001 x13: 1fffe000341cebab x12: 0000000000000000 [ 73.007093][ T5228] x11: ff8080000830061c x10: 0000000000000000 x9 : a13cfc81a1394400 [ 73.008441][ T5228] x8 : a13cfc81a1394400 x7 : 0000000000000001 x6 : 0000000000000001 [ 73.009896][ T5228] x5 : ffff8000219270d8 x4 : ffff80001446f500 x3 : ffff80000850f688 [ 73.011540][ T5228] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 73.013049][ T5228] Call trace: [ 73.013661][ T5228] btrfs_run_delayed_refs+0x3e8/0x460 [ 73.014685][ T5228] btrfs_commit_transaction+0x1d8/0x30ac [ 73.015758][ T5228] btrfs_ioctl_set_fslabel+0x2f8/0x3c8 [ 73.016664][ T5228] btrfs_ioctl+0x50c/0xa8c [ 73.017396][ T5228] __arm64_sys_ioctl+0x14c/0x1c8 [ 73.018429][ T5228] invoke_syscall+0x98/0x28c [ 73.019278][ T5228] el0_svc_common+0x13c/0x258 [ 73.020101][ T5228] do_el0_svc+0x5c/0x140 [ 73.020809][ T5228] el0_svc+0x78/0x1d0 [ 73.021587][ T5228] el0t_64_sync_handler+0xcc/0xe4 [ 73.022485][ T5228] el0t_64_sync+0x1a0/0x1a4 [ 73.023250][ T5228] irq event stamp: 79968 [ 73.024027][ T5228] hardirqs last enabled at (79967): [] __up_console_sem+0xb4/0xfc [ 73.025607][ T5228] hardirqs last disabled at (79968): [] el1_dbg+0x24/0x80 [ 73.027063][ T5228] softirqs last enabled at (79948): [] handle_softirqs+0xa70/0xc14 [ 73.028756][ T5228] softirqs last disabled at (79927): [] __irq_exit_rcu+0x240/0x434 [ 73.030350][ T5228] ---[ end trace 2bc8cb018f005b3b ]--- [ 73.031843][ T5228] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 73.033417][ T5228] BTRFS info (device loop0): forced readonly [ 73.254610][ T5250] loop0: detected capacity change from 0 to 32768 [ 73.298704][ T5250] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.39 (5250) [ 73.304105][ T5250] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 73.305539][ T5250] BTRFS info (device loop0): enabling auto defrag [ 73.307107][ T5250] BTRFS info (device loop0): enabling ssd optimizations [ 73.308578][ T5250] BTRFS info (device loop0): using spread ssd allocation scheme [ 73.310291][ T5250] BTRFS info (device loop0): max_inline at 0 [ 73.311305][ T5250] BTRFS info (device loop0): force clearing of disk cache [ 73.312686][ T5250] BTRFS info (device loop0): turning on sync discard [ 73.313913][ T5250] BTRFS info (device loop0): disabling free space tree [ 73.315141][ T5250] BTRFS info (device loop0): has skinny extents [ 73.326857][ T5250] FAULT_INJECTION: forcing a failure. [ 73.326857][ T5250] name failslab, interval 1, probability 0, space 0, times 0 [ 73.328988][ T5250] CPU: 0 PID: 5250 Comm: syz.0.39 Tainted: G W syzkaller #0 [ 73.330373][ T5250] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 73.332079][ T5250] Call trace: [ 73.332635][ T5250] dump_backtrace+0x0/0x458 [ 73.333399][ T5250] show_stack+0x2c/0x3c [ 73.334119][ T5250] __dump_stack+0x30/0x40 [ 73.334926][ T5250] dump_stack_lvl+0xf4/0x15c [ 73.335676][ T5250] dump_stack+0x1c/0x5c [ 73.336368][ T5250] should_fail+0x3c8/0x520 [ 73.337136][ T5250] __should_failslab+0xbc/0x10c [ 73.337947][ T5250] should_failslab+0x10/0x28 [ 73.338725][ T5250] slab_pre_alloc_hook+0x64/0xe8 [ 73.339581][ T5250] kmem_cache_alloc+0x94/0x3d8 [ 73.340388][ T5250] btrfs_alloc_path+0x5c/0x68 [ 73.341170][ T5250] __btrfs_run_delayed_refs+0xe6c/0x3484 [ 73.342155][ T5250] btrfs_run_delayed_refs+0x11c/0x460 [ 73.343037][ T5250] btrfs_commit_transaction+0x1d8/0x30ac [ 73.344014][ T5250] btrfs_ioctl_set_fslabel+0x2f8/0x3c8 [ 73.344947][ T5250] btrfs_ioctl+0x50c/0xa8c [ 73.345727][ T5250] __arm64_sys_ioctl+0x14c/0x1c8 [ 73.346575][ T5250] invoke_syscall+0x98/0x28c [ 73.347441][ T5250] el0_svc_common+0x13c/0x258 [ 73.348328][ T5250] do_el0_svc+0x5c/0x140 [ 73.349203][ T5250] el0_svc+0x78/0x1d0 [ 73.350040][ T5250] el0t_64_sync_handler+0xcc/0xe4 [ 73.351033][ T5250] el0t_64_sync+0x1a0/0x1a4 [ 73.352826][ T5250] BTRFS error (device loop0): failed to run delayed ref for logical 5246976 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 73.354956][ T5250] ------------[ cut here ]------------ [ 73.355893][ T5250] WARNING: CPU: 0 PID: 5250 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e8/0x460 [ 73.357515][ T5250] Modules linked in: [ 73.358140][ T5250] CPU: 0 PID: 5250 Comm: syz.0.39 Tainted: G W syzkaller #0 [ 73.359593][ T5250] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 73.361320][ T5250] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 73.362569][ T5250] pc : btrfs_run_delayed_refs+0x3e8/0x460 [ 73.363579][ T5250] lr : btrfs_run_delayed_refs+0x3e8/0x460 [ 73.364505][ T5250] sp : ffff8000220977d0 [ 73.365235][ T5250] x29: ffff8000220977e0 x28: ffff0000d9671000 x27: dfff800000000000 [ 73.366643][ T5250] x26: dfff800000000000 x25: ffff0000deedabb0 x24: 1fffe0001bddb581 [ 73.368084][ T5250] x23: ffff0000deedac08 x22: 00000000fffffff4 x21: 0000000000000000 [ 73.369407][ T5250] x20: 00000000fffffff4 x19: ffff0000deedabb0 x18: 0000000000000000 [ 73.370935][ T5250] x17: 0000000000000000 x16: ffff80001134e478 x15: 0000000000000000 [ 73.372506][ T5250] x14: 0000000000000001 x13: 1fffe000341cebab x12: 0000000000000000 [ 73.373882][ T5250] x11: ff8080000830061c x10: 0000000000000000 x9 : 91e3b3acf6340b00 [ 73.375287][ T5250] x8 : 91e3b3acf6340b00 x7 : 0000000000000001 x6 : 0000000000000001 [ 73.376764][ T5250] x5 : ffff8000220970d8 x4 : ffff80001446f500 x3 : ffff80000850f688 [ 73.378160][ T5250] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 73.379562][ T5250] Call trace: [ 73.380108][ T5250] btrfs_run_delayed_refs+0x3e8/0x460 [ 73.381002][ T5250] btrfs_commit_transaction+0x1d8/0x30ac [ 73.381952][ T5250] btrfs_ioctl_set_fslabel+0x2f8/0x3c8 [ 73.382867][ T5250] btrfs_ioctl+0x50c/0xa8c [ 73.383591][ T5250] __arm64_sys_ioctl+0x14c/0x1c8 [ 73.384401][ T5250] invoke_syscall+0x98/0x28c [ 73.385184][ T5250] el0_svc_common+0x13c/0x258 [ 73.385993][ T5250] do_el0_svc+0x5c/0x140 [ 73.386684][ T5250] el0_svc+0x78/0x1d0 [ 73.387362][ T5250] el0t_64_sync_handler+0xcc/0xe4 [ 73.388251][ T5250] el0t_64_sync+0x1a0/0x1a4 [ 73.389024][ T5250] irq event stamp: 79380 [ 73.389733][ T5250] hardirqs last enabled at (79379): [] __up_console_sem+0xb4/0xfc [ 73.391395][ T5250] hardirqs last disabled at (79380): [] el1_dbg+0x24/0x80 [ 73.392857][ T5250] softirqs last enabled at (79346): [] handle_softirqs+0xa70/0xc14 [ 73.394596][ T5250] softirqs last disabled at (79307): [] __irq_exit_rcu+0x240/0x434 [ 73.396297][ T5250] ---[ end trace 2bc8cb018f005b3c ]--- [ 73.398544][ T5250] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 73.570686][ T5272] loop0: detected capacity change from 0 to 32768 [ 73.607682][ T5272] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.40 (5272) [ 73.689044][ T5272] FAULT_INJECTION: forcing a failure. [ 73.689044][ T5272] name failslab, interval 1, probability 0, space 0, times 0 [ 73.691186][ T5272] CPU: 0 PID: 5272 Comm: syz.0.40 Tainted: G W syzkaller #0 [ 73.692532][ T5272] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 73.694316][ T5272] Call trace: [ 73.694846][ T5272] dump_backtrace+0x0/0x458 [ 73.695592][ T5272] show_stack+0x2c/0x3c [ 73.696306][ T5272] __dump_stack+0x30/0x40 [ 73.697132][ T5272] dump_stack_lvl+0xf4/0x15c [ 73.697932][ T5272] dump_stack+0x1c/0x5c [ 73.698646][ T5272] should_fail+0x3c8/0x520 [ 73.699447][ T5272] __should_failslab+0xbc/0x10c [ 73.700287][ T5272] should_failslab+0x10/0x28 [ 73.701059][ T5272] slab_pre_alloc_hook+0x64/0xe8 [ 73.701891][ T5272] kmem_cache_alloc+0x94/0x3d8 [ 73.702683][ T5272] btrfs_alloc_path+0x5c/0x68 [ 73.703467][ T5272] __btrfs_free_extent+0x1a4/0x1ae0 [ 73.704344][ T5272] __btrfs_run_delayed_refs+0xc00/0x3484 [ 73.705305][ T5272] btrfs_run_delayed_refs+0x11c/0x460 [ 73.706259][ T5272] btrfs_commit_transaction+0x1d8/0x30ac [ 73.707243][ T5272] btrfs_ioctl_set_fslabel+0x2f8/0x3c8 [ 73.708173][ T5272] btrfs_ioctl+0x50c/0xa8c [ 73.708964][ T5272] __arm64_sys_ioctl+0x14c/0x1c8 [ 73.709837][ T5272] invoke_syscall+0x98/0x28c [ 73.710655][ T5272] el0_svc_common+0x13c/0x258 [ 73.711485][ T5272] do_el0_svc+0x5c/0x140 [ 73.712222][ T5272] el0_svc+0x78/0x1d0 [ 73.712908][ T5272] el0t_64_sync_handler+0xcc/0xe4 [ 73.713840][ T5272] el0t_64_sync+0x1a0/0x1a4 [ 73.714898][ T5272] BTRFS error (device loop0): failed to run delayed ref for logical 5255168 num_bytes 4096 type 176 action 2 ref_mod 1: -12 [ 73.717629][ T5272] ------------[ cut here ]------------ [ 73.718942][ T5272] WARNING: CPU: 0 PID: 5272 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e8/0x460 [ 73.720658][ T5272] Modules linked in: [ 73.721307][ T5272] CPU: 0 PID: 5272 Comm: syz.0.40 Tainted: G W syzkaller #0 [ 73.722770][ T5272] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 73.724423][ T5272] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 73.725746][ T5272] pc : btrfs_run_delayed_refs+0x3e8/0x460 [ 73.726635][ T5272] lr : btrfs_run_delayed_refs+0x3e8/0x460 [ 73.727642][ T5272] sp : ffff800021aa77d0 [ 73.728400][ T5272] x29: ffff800021aa77e0 x28: ffff0000d33f9000 x27: dfff800000000000 [ 73.729735][ T5272] x26: dfff800000000000 x25: ffff0000deeda000 x24: 1fffe0001bddb40b [ 73.731200][ T5272] x23: ffff0000deeda058 x22: 00000000fffffff4 x21: 0000000000000000 [ 73.732664][ T5272] x20: 00000000fffffff4 x19: ffff0000deeda000 x18: 0000000000000000 [ 73.734070][ T5272] x17: 0000000000000000 x16: ffff80001134e478 x15: 0000000000000000 [ 73.735507][ T5272] x14: 0000000000000001 x13: 1fffe000341cebab x12: 0000000000000000 [ 73.736883][ T5272] x11: ff8080000830061c x10: 0000000000000000 x9 : 7e7f05e2aaddd400 [ 73.738308][ T5272] x8 : 7e7f05e2aaddd400 x7 : 0000000000000001 x6 : 0000000000000001 [ 73.739649][ T5272] x5 : ffff800021aa70d8 x4 : ffff80001446f500 x3 : ffff80000850f688 [ 73.741035][ T5272] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 73.742373][ T5272] Call trace: [ 73.742919][ T5272] btrfs_run_delayed_refs+0x3e8/0x460 [ 73.743830][ T5272] btrfs_commit_transaction+0x1d8/0x30ac [ 73.744784][ T5272] btrfs_ioctl_set_fslabel+0x2f8/0x3c8 [ 73.745768][ T5272] btrfs_ioctl+0x50c/0xa8c [ 73.746541][ T5272] __arm64_sys_ioctl+0x14c/0x1c8 [ 73.747404][ T5272] invoke_syscall+0x98/0x28c [ 73.748184][ T5272] el0_svc_common+0x13c/0x258 [ 73.748967][ T5272] do_el0_svc+0x5c/0x140 [ 73.749685][ T5272] el0_svc+0x78/0x1d0 [ 73.750379][ T5272] el0t_64_sync_handler+0xcc/0xe4 [ 73.751218][ T5272] el0t_64_sync+0x1a0/0x1a4 [ 73.751991][ T5272] irq event stamp: 79048 [ 73.752704][ T5272] hardirqs last enabled at (79047): [] __up_console_sem+0xb4/0xfc [ 73.754366][ T5272] hardirqs last disabled at (79048): [] el1_dbg+0x24/0x80 [ 73.755850][ T5272] softirqs last enabled at (79022): [] handle_softirqs+0xa70/0xc14 [ 73.757483][ T5272] softirqs last disabled at (79011): [] __irq_exit_rcu+0x240/0x434 [ 73.759099][ T5272] ---[ end trace 2bc8cb018f005b3d ]--- [ 73.762954][ T5272] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 73.893543][ T5294] loop0: detected capacity change from 0 to 32768 [ 74.008034][ T5294] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.41 (5294) [ 74.029225][ T5294] FAULT_INJECTION: forcing a failure. [ 74.029225][ T5294] name failslab, interval 1, probability 0, space 0, times 0 [ 74.031543][ T5294] CPU: 0 PID: 5294 Comm: syz.0.41 Tainted: G W syzkaller #0 [ 74.032958][ T5294] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 74.034627][ T5294] Call trace: [ 74.035182][ T5294] dump_backtrace+0x0/0x458 [ 74.035976][ T5294] show_stack+0x2c/0x3c [ 74.036633][ T5294] __dump_stack+0x30/0x40 [ 74.037374][ T5294] dump_stack_lvl+0xf4/0x15c [ 74.038259][ T5294] dump_stack+0x1c/0x5c [ 74.039007][ T5294] should_fail+0x3c8/0x520 [ 74.039751][ T5294] __should_failslab+0xbc/0x10c [ 74.040574][ T5294] should_failslab+0x10/0x28 [ 74.041344][ T5294] slab_pre_alloc_hook+0x64/0xe8 [ 74.042202][ T5294] kmem_cache_alloc+0x94/0x3d8 [ 74.043045][ T5294] btrfs_alloc_path+0x5c/0x68 [ 74.043850][ T5294] __btrfs_free_extent+0x1a4/0x1ae0 [ 74.044749][ T5294] __btrfs_run_delayed_refs+0xc00/0x3484 [ 74.045683][ T5294] btrfs_run_delayed_refs+0x11c/0x460 [ 74.046546][ T5294] btrfs_commit_transaction+0x1d8/0x30ac [ 74.047484][ T5294] btrfs_ioctl_set_fslabel+0x2f8/0x3c8 [ 74.048404][ T5294] btrfs_ioctl+0x50c/0xa8c [ 74.049180][ T5294] __arm64_sys_ioctl+0x14c/0x1c8 [ 74.049992][ T5294] invoke_syscall+0x98/0x28c [ 74.050828][ T5294] el0_svc_common+0x13c/0x258 [ 74.051626][ T5294] do_el0_svc+0x5c/0x140 [ 74.052378][ T5294] el0_svc+0x78/0x1d0 [ 74.053067][ T5294] el0t_64_sync_handler+0xcc/0xe4 [ 74.053925][ T5294] el0t_64_sync+0x1a0/0x1a4 [ 74.056149][ T5294] BTRFS error (device loop0): failed to run delayed ref for logical 5255168 num_bytes 4096 type 176 action 2 ref_mod 1: -12 [ 74.058759][ T5294] ------------[ cut here ]------------ [ 74.059791][ T5294] WARNING: CPU: 0 PID: 5294 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e8/0x460 [ 74.061470][ T5294] Modules linked in: [ 74.062111][ T5294] CPU: 0 PID: 5294 Comm: syz.0.41 Tainted: G W syzkaller #0 [ 74.063563][ T5294] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 74.065349][ T5294] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 74.066728][ T5294] pc : btrfs_run_delayed_refs+0x3e8/0x460 [ 74.067817][ T5294] lr : btrfs_run_delayed_refs+0x3e8/0x460 [ 74.068784][ T5294] sp : ffff800021aa77d0 [ 74.069504][ T5294] x29: ffff800021aa77e0 x28: ffff0000d0df7000 x27: dfff800000000000 [ 74.070892][ T5294] x26: dfff800000000000 x25: ffff0000dd7ee0b0 x24: 1fffe0001bafdc21 [ 74.072367][ T5294] x23: ffff0000dd7ee108 x22: 00000000fffffff4 x21: 0000000000000000 [ 74.073850][ T5294] x20: 00000000fffffff4 x19: ffff0000dd7ee0b0 x18: 0000000000000000 [ 74.075193][ T5294] x17: 0000000000000000 x16: ffff80001134e478 x15: 0000000000000000 [ 74.076540][ T5294] x14: 0000000000000001 x13: 1fffe000341cebab x12: 0000000000000000 [ 74.077853][ T5294] x11: ff8080000830061c x10: 0000000000000000 x9 : 9f22e89639428a00 [ 74.079175][ T5294] x8 : 9f22e89639428a00 x7 : 0000000000000001 x6 : 0000000000000001 [ 74.080574][ T5294] x5 : ffff800021aa70d8 x4 : ffff80001446f500 x3 : ffff80000850f688 [ 74.081916][ T5294] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 74.083269][ T5294] Call trace: [ 74.083847][ T5294] btrfs_run_delayed_refs+0x3e8/0x460 [ 74.084838][ T5294] btrfs_commit_transaction+0x1d8/0x30ac [ 74.085874][ T5294] btrfs_ioctl_set_fslabel+0x2f8/0x3c8 [ 74.086781][ T5294] btrfs_ioctl+0x50c/0xa8c [ 74.087515][ T5294] __arm64_sys_ioctl+0x14c/0x1c8 [ 74.088467][ T5294] invoke_syscall+0x98/0x28c [ 74.089299][ T5294] el0_svc_common+0x13c/0x258 [ 74.090138][ T5294] do_el0_svc+0x5c/0x140 [ 74.090899][ T5294] el0_svc+0x78/0x1d0 [ 74.091628][ T5294] el0t_64_sync_handler+0xcc/0xe4 [ 74.092564][ T5294] el0t_64_sync+0x1a0/0x1a4 [ 74.093367][ T5294] irq event stamp: 79414 [ 74.094105][ T5294] hardirqs last enabled at (79413): [] __up_console_sem+0xb4/0xfc [ 74.095767][ T5294] hardirqs last disabled at (79414): [] el1_dbg+0x24/0x80 [ 74.097256][ T5294] softirqs last enabled at (79394): [] handle_softirqs+0xa70/0xc14 [ 74.098914][ T5294] softirqs last disabled at (79277): [] __irq_exit_rcu+0x240/0x434 [ 74.100538][ T5294] ---[ end trace 2bc8cb018f005b3e ]--- [ 74.104026][ T5294] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 74.329276][ T5316] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.42 (5316) [ 74.345657][ T5316] FAULT_INJECTION: forcing a failure. [ 74.345657][ T5316] name failslab, interval 1, probability 0, space 0, times 0 [ 74.348113][ T5316] CPU: 0 PID: 5316 Comm: syz.0.42 Tainted: G W syzkaller #0 [ 74.349558][ T5316] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 74.351247][ T5316] Call trace: [ 74.351802][ T5316] dump_backtrace+0x0/0x458 [ 74.352502][ T5316] show_stack+0x2c/0x3c [ 74.353153][ T5316] __dump_stack+0x30/0x40 [ 74.353804][ T5316] dump_stack_lvl+0xf4/0x15c [ 74.354531][ T5316] dump_stack+0x1c/0x5c [ 74.355190][ T5316] should_fail+0x3c8/0x520 [ 74.355899][ T5316] __should_failslab+0xbc/0x10c [ 74.356759][ T5316] should_failslab+0x10/0x28 [ 74.357553][ T5316] slab_pre_alloc_hook+0x64/0xe8 [ 74.358370][ T5316] kmem_cache_alloc+0x94/0x3d8 [ 74.359184][ T5316] btrfs_alloc_path+0x5c/0x68 [ 74.359985][ T5316] __btrfs_run_delayed_refs+0xe6c/0x3484 [ 74.360967][ T5316] btrfs_run_delayed_refs+0x11c/0x460 [ 74.361861][ T5316] btrfs_commit_transaction+0x1d8/0x30ac [ 74.362863][ T5316] btrfs_ioctl_set_fslabel+0x2f8/0x3c8 [ 74.363914][ T5316] btrfs_ioctl+0x50c/0xa8c [ 74.364690][ T5316] __arm64_sys_ioctl+0x14c/0x1c8 [ 74.365575][ T5316] invoke_syscall+0x98/0x28c [ 74.366450][ T5316] el0_svc_common+0x13c/0x258 [ 74.367341][ T5316] do_el0_svc+0x5c/0x140 [ 74.368167][ T5316] el0_svc+0x78/0x1d0 [ 74.368860][ T5316] el0t_64_sync_handler+0xcc/0xe4 [ 74.369741][ T5316] el0t_64_sync+0x1a0/0x1a4 [ 74.372075][ T5316] BTRFS error (device loop0): failed to run delayed ref for logical 5246976 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 74.374249][ T5316] ------------[ cut here ]------------ [ 74.375240][ T5316] WARNING: CPU: 0 PID: 5316 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e8/0x460 [ 74.376849][ T5316] Modules linked in: [ 74.377503][ T5316] CPU: 0 PID: 5316 Comm: syz.0.42 Tainted: G W syzkaller #0 [ 74.379034][ T5316] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 74.380755][ T5316] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 74.382131][ T5316] pc : btrfs_run_delayed_refs+0x3e8/0x460 [ 74.383104][ T5316] lr : btrfs_run_delayed_refs+0x3e8/0x460 [ 74.384079][ T5316] sp : ffff8000223a77d0 [ 74.384840][ T5316] x29: ffff8000223a77e0 x28: ffff0000c8312000 x27: dfff800000000000 [ 74.386325][ T5316] x26: dfff800000000000 x25: ffff0000dd7ee2c0 x24: 1fffe0001bafdc63 [ 74.387868][ T5316] x23: ffff0000dd7ee318 x22: 00000000fffffff4 x21: 0000000000000000 [ 74.389266][ T5316] x20: 00000000fffffff4 x19: ffff0000dd7ee2c0 x18: 0000000000000000 [ 74.390764][ T5316] x17: 0000000000000000 x16: ffff80001134e478 x15: 0000000000000000 [ 74.392255][ T5316] x14: 0000000000000001 x13: 1fffe000341cebab x12: 0000000000000000 [ 74.393662][ T5316] x11: ff8080000830061c x10: 0000000000000000 x9 : 4ecd5a57e2a39400 [ 74.395088][ T5316] x8 : 4ecd5a57e2a39400 x7 : 0000000000000001 x6 : 0000000000000001 [ 74.396541][ T5316] x5 : ffff8000223a70d8 x4 : ffff80001446f500 x3 : ffff80000850f688 [ 74.397963][ T5316] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 74.399357][ T5316] Call trace: [ 74.399936][ T5316] btrfs_run_delayed_refs+0x3e8/0x460 [ 74.400837][ T5316] btrfs_commit_transaction+0x1d8/0x30ac [ 74.401852][ T5316] btrfs_ioctl_set_fslabel+0x2f8/0x3c8 [ 74.402780][ T5316] btrfs_ioctl+0x50c/0xa8c [ 74.403494][ T5316] __arm64_sys_ioctl+0x14c/0x1c8 [ 74.404367][ T5316] invoke_syscall+0x98/0x28c [ 74.405167][ T5316] el0_svc_common+0x13c/0x258 [ 74.405976][ T5316] do_el0_svc+0x5c/0x140 [ 74.406696][ T5316] el0_svc+0x78/0x1d0 [ 74.407367][ T5316] el0t_64_sync_handler+0xcc/0xe4 [ 74.408126][ T5316] el0t_64_sync+0x1a0/0x1a4 [ 74.408898][ T5316] irq event stamp: 79212 [ 74.409640][ T5316] hardirqs last enabled at (79211): [] __up_console_sem+0xb4/0xfc [ 74.411327][ T5316] hardirqs last disabled at (79212): [] el1_dbg+0x24/0x80 [ 74.412824][ T5316] softirqs last enabled at (79176): [] handle_softirqs+0xa70/0xc14 [ 74.414500][ T5316] softirqs last disabled at (79135): [] __irq_exit_rcu+0x240/0x434 [ 74.416219][ T5316] ---[ end trace 2bc8cb018f005b3f ]--- [ 74.419204][ T5316] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 74.587721][ T5339] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.43 (5339) [ 74.646826][ T5339] FAULT_INJECTION: forcing a failure. [ 74.646826][ T5339] name failslab, interval 1, probability 0, space 0, times 0 [ 74.649156][ T5339] CPU: 1 PID: 5339 Comm: syz.0.43 Tainted: G W syzkaller #0 [ 74.650458][ T5339] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 74.652285][ T5339] Call trace: [ 74.652897][ T5339] dump_backtrace+0x0/0x458 [ 74.653778][ T5339] show_stack+0x2c/0x3c [ 74.654572][ T5339] __dump_stack+0x30/0x40 [ 74.655428][ T5339] dump_stack_lvl+0xf4/0x15c [ 74.656222][ T5339] dump_stack+0x1c/0x5c [ 74.656952][ T5339] should_fail+0x3c8/0x520 [ 74.657836][ T5339] __should_failslab+0xbc/0x10c [ 74.658646][ T5339] should_failslab+0x10/0x28 [ 74.659484][ T5339] slab_pre_alloc_hook+0x64/0xe8 [ 74.660355][ T5339] kmem_cache_alloc+0x94/0x3d8 [ 74.661178][ T5339] btrfs_alloc_path+0x5c/0x68 [ 74.662001][ T5339] __btrfs_free_extent+0x1a4/0x1ae0 [ 74.662841][ T5339] __btrfs_run_delayed_refs+0xc00/0x3484 [ 74.663818][ T5339] btrfs_run_delayed_refs+0x11c/0x460 [ 74.664832][ T5339] btrfs_commit_transaction+0x1d8/0x30ac [ 74.665836][ T5339] btrfs_ioctl_set_fslabel+0x2f8/0x3c8 [ 74.666799][ T5339] btrfs_ioctl+0x50c/0xa8c [ 74.667590][ T5339] __arm64_sys_ioctl+0x14c/0x1c8 [ 74.668471][ T5339] invoke_syscall+0x98/0x28c [ 74.669295][ T5339] el0_svc_common+0x13c/0x258 [ 74.670091][ T5339] do_el0_svc+0x5c/0x140 [ 74.670811][ T5339] el0_svc+0x78/0x1d0 [ 74.671525][ T5339] el0t_64_sync_handler+0xcc/0xe4 [ 74.672431][ T5339] el0t_64_sync+0x1a0/0x1a4 [ 74.676927][ T5339] BTRFS error (device loop0): failed to run delayed ref for logical 5255168 num_bytes 4096 type 176 action 2 ref_mod 1: -12 [ 74.679228][ T5339] ------------[ cut here ]------------ [ 74.680232][ T5339] WARNING: CPU: 0 PID: 5339 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e8/0x460 [ 74.681935][ T5339] Modules linked in: [ 74.682515][ T5339] CPU: 0 PID: 5339 Comm: syz.0.43 Tainted: G W syzkaller #0 [ 74.683909][ T5339] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 74.685508][ T5339] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 74.686733][ T5339] pc : btrfs_run_delayed_refs+0x3e8/0x460 [ 74.687747][ T5339] lr : btrfs_run_delayed_refs+0x3e8/0x460 [ 74.688846][ T5339] sp : ffff8000223a77d0 [ 74.689654][ T5339] x29: ffff8000223a77e0 x28: ffff0000c8311000 x27: dfff800000000000 [ 74.691111][ T5339] x26: dfff800000000000 x25: ffff0000deede6e0 x24: 1fffe0001bddbce7 [ 74.692611][ T5339] x23: ffff0000deede738 x22: 00000000fffffff4 x21: 0000000000000000 [ 74.693998][ T5339] x20: 00000000fffffff4 x19: ffff0000deede6e0 x18: 0000000000000000 [ 74.695336][ T5339] x17: 0000000000000000 x16: ffff80001134e478 x15: 0000000000000000 [ 74.696758][ T5339] x14: 0000000000000001 x13: 1fffe000341cebab x12: 0000000000000000 [ 74.698097][ T5339] x11: ff8080000830061c x10: 0000000000000000 x9 : dc1f639575a02800 [ 74.699493][ T5339] x8 : dc1f639575a02800 x7 : 0000000000000001 x6 : 0000000000000001 [ 74.700874][ T5339] x5 : ffff8000223a70d8 x4 : ffff80001446f500 x3 : ffff80000850f688 [ 74.702230][ T5339] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 74.703583][ T5339] Call trace: [ 74.704114][ T5339] btrfs_run_delayed_refs+0x3e8/0x460 [ 74.705065][ T5339] btrfs_commit_transaction+0x1d8/0x30ac [ 74.706093][ T5339] btrfs_ioctl_set_fslabel+0x2f8/0x3c8 [ 74.707066][ T5339] btrfs_ioctl+0x50c/0xa8c [ 74.707873][ T5339] __arm64_sys_ioctl+0x14c/0x1c8 [ 74.708717][ T5339] invoke_syscall+0x98/0x28c [ 74.709507][ T5339] el0_svc_common+0x13c/0x258 [ 74.710282][ T5339] do_el0_svc+0x5c/0x140 [ 74.711001][ T5339] el0_svc+0x78/0x1d0 [ 74.711689][ T5339] el0t_64_sync_handler+0xcc/0xe4 [ 74.712608][ T5339] el0t_64_sync+0x1a0/0x1a4 [ 74.713383][ T5339] irq event stamp: 79346 [ 74.714266][ T5339] hardirqs last enabled at (79345): [] __up_console_sem+0xb4/0xfc [ 74.715972][ T5339] hardirqs last disabled at (79346): [] el1_dbg+0x24/0x80 [ 74.717496][ T5339] softirqs last enabled at (79314): [] handle_softirqs+0xa70/0xc14 [ 74.719157][ T5339] softirqs last disabled at (79275): [] __irq_exit_rcu+0x240/0x434 [ 74.720726][ T5339] ---[ end trace 2bc8cb018f005b40 ]--- [ 74.726566][ T5339] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 74.871103][ T5361] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.44 (5361) [ 74.892231][ T5361] FAULT_INJECTION: forcing a failure. [ 74.892231][ T5361] name failslab, interval 1, probability 0, space 0, times 0 [ 74.894588][ T5361] CPU: 0 PID: 5361 Comm: syz.0.44 Tainted: G W syzkaller #0 [ 74.895989][ T5361] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 74.897782][ T5361] Call trace: [ 74.898460][ T5361] dump_backtrace+0x0/0x458 [ 74.899282][ T5361] show_stack+0x2c/0x3c [ 74.899994][ T5361] __dump_stack+0x30/0x40 [ 74.900720][ T5361] dump_stack_lvl+0xf4/0x15c [ 74.901534][ T5361] dump_stack+0x1c/0x5c [ 74.902246][ T5361] should_fail+0x3c8/0x520 [ 74.903024][ T5361] __should_failslab+0xbc/0x10c [ 74.903862][ T5361] should_failslab+0x10/0x28 [ 74.904694][ T5361] slab_pre_alloc_hook+0x64/0xe8 [ 74.905610][ T5361] kmem_cache_alloc+0x94/0x3d8 [ 74.906402][ T5361] btrfs_alloc_path+0x5c/0x68 [ 74.907194][ T5361] __btrfs_run_delayed_refs+0xe6c/0x3484 [ 74.908193][ T5361] btrfs_run_delayed_refs+0x11c/0x460 [ 74.909094][ T5361] btrfs_commit_transaction+0x1d8/0x30ac [ 74.910088][ T5361] btrfs_ioctl_set_fslabel+0x2f8/0x3c8 [ 74.911072][ T5361] btrfs_ioctl+0x50c/0xa8c [ 74.911869][ T5361] __arm64_sys_ioctl+0x14c/0x1c8 [ 74.912787][ T5361] invoke_syscall+0x98/0x28c [ 74.913646][ T5361] el0_svc_common+0x13c/0x258 [ 74.914521][ T5361] do_el0_svc+0x5c/0x140 [ 74.915256][ T5361] el0_svc+0x78/0x1d0 [ 74.916096][ T5361] el0t_64_sync_handler+0xcc/0xe4 [ 74.916975][ T5361] el0t_64_sync+0x1a0/0x1a4 [ 74.919807][ T5361] BTRFS error (device loop0): failed to run delayed ref for logical 5246976 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 74.922018][ T5361] ------------[ cut here ]------------ [ 74.923024][ T5361] WARNING: CPU: 0 PID: 5361 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e8/0x460 [ 74.924640][ T5361] Modules linked in: [ 74.925276][ T5361] CPU: 0 PID: 5361 Comm: syz.0.44 Tainted: G W syzkaller #0 [ 74.926639][ T5361] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 74.928367][ T5361] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 74.929713][ T5361] pc : btrfs_run_delayed_refs+0x3e8/0x460 [ 74.930677][ T5361] lr : btrfs_run_delayed_refs+0x3e8/0x460 [ 74.931580][ T5361] sp : ffff8000223a77d0 [ 74.932248][ T5361] x29: ffff8000223a77e0 x28: ffff0000c8313000 x27: dfff800000000000 [ 74.933586][ T5361] x26: dfff800000000000 x25: ffff0000dd7ee630 x24: 1fffe0001bafdcd1 [ 74.935077][ T5361] x23: ffff0000dd7ee688 x22: 00000000fffffff4 x21: 0000000000000000 [ 74.936543][ T5361] x20: 00000000fffffff4 x19: ffff0000dd7ee630 x18: 0000000000000000 [ 74.937854][ T5361] x17: 0000000000000000 x16: ffff80001134e478 x15: 0000000000000000 [ 74.939230][ T5361] x14: 0000000000000001 x13: 1fffe000341cebab x12: 0000000000000000 [ 74.940478][ T5361] x11: ff8080000830061c x10: 0000000000000000 x9 : 0876bb478e26b900 [ 74.941864][ T5361] x8 : 0876bb478e26b900 x7 : 0000000000000001 x6 : 0000000000000001 [ 74.943376][ T5361] x5 : ffff8000223a70d8 x4 : ffff80001446f500 x3 : ffff80000850f688 [ 74.944997][ T5361] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 74.946944][ T5361] Call trace: [ 74.947536][ T5361] btrfs_run_delayed_refs+0x3e8/0x460 [ 74.948597][ T5361] btrfs_commit_transaction+0x1d8/0x30ac [ 74.949541][ T5361] btrfs_ioctl_set_fslabel+0x2f8/0x3c8 [ 74.950516][ T5361] btrfs_ioctl+0x50c/0xa8c [ 74.951329][ T5361] __arm64_sys_ioctl+0x14c/0x1c8 [ 74.952148][ T5361] invoke_syscall+0x98/0x28c [ 74.952913][ T5361] el0_svc_common+0x13c/0x258 [ 74.953750][ T5361] do_el0_svc+0x5c/0x140 [ 74.954523][ T5361] el0_svc+0x78/0x1d0 [ 74.955198][ T5361] el0t_64_sync_handler+0xcc/0xe4 [ 74.956044][ T5361] el0t_64_sync+0x1a0/0x1a4 [ 74.956825][ T5361] irq event stamp: 79150 [ 74.957559][ T5361] hardirqs last enabled at (79149): [] __up_console_sem+0xb4/0xfc [ 74.959191][ T5361] hardirqs last disabled at (79150): [] el1_dbg+0x24/0x80 [ 74.960663][ T5361] softirqs last enabled at (79116): [] handle_softirqs+0xa70/0xc14 [ 74.962224][ T5361] softirqs last disabled at (79069): [] __irq_exit_rcu+0x240/0x434 [ 74.963921][ T5361] ---[ end trace 2bc8cb018f005b41 ]--- [ 74.965438][ T5361] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 75.178380][ T5383] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.45 (5383) [ 75.205814][ T5383] FAULT_INJECTION: forcing a failure. [ 75.205814][ T5383] name failslab, interval 1, probability 0, space 0, times 0 [ 75.208169][ T5383] CPU: 1 PID: 5383 Comm: syz.0.45 Tainted: G W syzkaller #0 [ 75.209614][ T5383] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 75.211284][ T5383] Call trace: [ 75.211791][ T5383] dump_backtrace+0x0/0x458 [ 75.212516][ T5383] show_stack+0x2c/0x3c [ 75.213221][ T5383] __dump_stack+0x30/0x40 [ 75.214003][ T5383] dump_stack_lvl+0xf4/0x15c [ 75.214782][ T5383] dump_stack+0x1c/0x5c [ 75.215515][ T5383] should_fail+0x3c8/0x520 [ 75.216349][ T5383] __should_failslab+0xbc/0x10c [ 75.217172][ T5383] should_failslab+0x10/0x28 [ 75.218001][ T5383] slab_pre_alloc_hook+0x64/0xe8 [ 75.218876][ T5383] kmem_cache_alloc+0x94/0x3d8 [ 75.219675][ T5383] btrfs_alloc_path+0x5c/0x68 [ 75.220483][ T5383] __btrfs_run_delayed_refs+0xe6c/0x3484 [ 75.221514][ T5383] btrfs_run_delayed_refs+0x11c/0x460 [ 75.222519][ T5383] btrfs_commit_transaction+0x1d8/0x30ac [ 75.223524][ T5383] btrfs_ioctl_set_fslabel+0x2f8/0x3c8 [ 75.224512][ T5383] btrfs_ioctl+0x50c/0xa8c [ 75.225259][ T5383] __arm64_sys_ioctl+0x14c/0x1c8 [ 75.226098][ T5383] invoke_syscall+0x98/0x28c [ 75.226889][ T5383] el0_svc_common+0x13c/0x258 [ 75.227734][ T5383] do_el0_svc+0x5c/0x140 [ 75.228481][ T5383] el0_svc+0x78/0x1d0 [ 75.229200][ T5383] el0t_64_sync_handler+0xcc/0xe4 [ 75.230095][ T5383] el0t_64_sync+0x1a0/0x1a4 [ 75.232963][ T5383] BTRFS error (device loop0): failed to run delayed ref for logical 5246976 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 75.235163][ T5383] ------------[ cut here ]------------ [ 75.236280][ T5383] WARNING: CPU: 1 PID: 5383 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e8/0x460 [ 75.238070][ T5383] Modules linked in: [ 75.238766][ T5383] CPU: 1 PID: 5383 Comm: syz.0.45 Tainted: G W syzkaller #0 [ 75.240272][ T5383] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 75.241966][ T5383] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 75.243307][ T5383] pc : btrfs_run_delayed_refs+0x3e8/0x460 [ 75.244290][ T5383] lr : btrfs_run_delayed_refs+0x3e8/0x460 [ 75.245262][ T5383] sp : ffff8000225777d0 [ 75.246025][ T5383] x29: ffff8000225777e0 x28: ffff0000d6e65000 x27: dfff800000000000 [ 75.247448][ T5383] x26: dfff800000000000 x25: ffff0000deedef20 x24: 1fffe0001bddbdef [ 75.248876][ T5383] x23: ffff0000deedef78 x22: 00000000fffffff4 x21: 0000000000000000 [ 75.250298][ T5383] x20: 00000000fffffff4 x19: ffff0000deedef20 x18: 0000000000000000 [ 75.251653][ T5383] x17: 0000000000000000 x16: ffff80001134e478 x15: 0000000000000000 [ 75.253035][ T5383] x14: 0000000000000001 x13: 1fffe000341d2dab x12: 0000000000000000 [ 75.254452][ T5383] x11: ff8080000830061c x10: 0000000000000000 x9 : 4056206d26c6b100 [ 75.255848][ T5383] x8 : 4056206d26c6b100 x7 : 0000000000000001 x6 : 0000000000000001 [ 75.257243][ T5383] x5 : ffff8000225770d8 x4 : ffff80001446f500 x3 : ffff80000850f688 [ 75.258644][ T5383] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 75.260076][ T5383] Call trace: [ 75.260684][ T5383] btrfs_run_delayed_refs+0x3e8/0x460 [ 75.261738][ T5383] btrfs_commit_transaction+0x1d8/0x30ac [ 75.262833][ T5383] btrfs_ioctl_set_fslabel+0x2f8/0x3c8 [ 75.263800][ T5383] btrfs_ioctl+0x50c/0xa8c [ 75.264586][ T5383] __arm64_sys_ioctl+0x14c/0x1c8 [ 75.265432][ T5383] invoke_syscall+0x98/0x28c [ 75.266207][ T5383] el0_svc_common+0x13c/0x258 [ 75.267011][ T5383] do_el0_svc+0x5c/0x140 [ 75.267758][ T5383] el0_svc+0x78/0x1d0 [ 75.268413][ T5383] el0t_64_sync_handler+0xcc/0xe4 [ 75.269239][ T5383] el0t_64_sync+0x1a0/0x1a4 [ 75.270012][ T5383] irq event stamp: 79582 [ 75.270677][ T5383] hardirqs last enabled at (79581): [] __up_console_sem+0xb4/0xfc [ 75.272391][ T5383] hardirqs last disabled at (79582): [] el1_dbg+0x24/0x80 [ 75.273995][ T5383] softirqs last enabled at (79542): [] handle_softirqs+0xa70/0xc14 [ 75.275720][ T5383] softirqs last disabled at (79525): [] __irq_exit_rcu+0x240/0x434 [ 75.277654][ T5383] ---[ end trace 2bc8cb018f005b42 ]--- [ 75.280696][ T5383] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 75.490537][ T5405] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.46 (5405) [ 75.519089][ T5405] FAULT_INJECTION: forcing a failure. [ 75.519089][ T5405] name failslab, interval 1, probability 0, space 0, times 0 [ 75.521322][ T5405] CPU: 0 PID: 5405 Comm: syz.0.46 Tainted: G W syzkaller #0 [ 75.522789][ T5405] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 75.524498][ T5405] Call trace: [ 75.525034][ T5405] dump_backtrace+0x0/0x458 [ 75.525799][ T5405] show_stack+0x2c/0x3c [ 75.526525][ T5405] __dump_stack+0x30/0x40 [ 75.527285][ T5405] dump_stack_lvl+0xf4/0x15c [ 75.528115][ T5405] dump_stack+0x1c/0x5c [ 75.528883][ T5405] should_fail+0x3c8/0x520 [ 75.529664][ T5405] __should_failslab+0xbc/0x10c [ 75.530494][ T5405] should_failslab+0x10/0x28 [ 75.531238][ T5405] slab_pre_alloc_hook+0x64/0xe8 [ 75.532043][ T5405] kmem_cache_alloc+0x94/0x3d8 [ 75.532826][ T5405] btrfs_alloc_path+0x5c/0x68 [ 75.533612][ T5405] __btrfs_run_delayed_refs+0xe6c/0x3484 [ 75.534587][ T5405] btrfs_run_delayed_refs+0x11c/0x460 [ 75.535562][ T5405] btrfs_commit_transaction+0x1d8/0x30ac [ 75.536472][ T5405] btrfs_ioctl_set_fslabel+0x2f8/0x3c8 [ 75.537405][ T5405] btrfs_ioctl+0x50c/0xa8c [ 75.538125][ T5405] __arm64_sys_ioctl+0x14c/0x1c8 [ 75.538921][ T5405] invoke_syscall+0x98/0x28c [ 75.539695][ T5405] el0_svc_common+0x13c/0x258 [ 75.540488][ T5405] do_el0_svc+0x5c/0x140 [ 75.541199][ T5405] el0_svc+0x78/0x1d0 [ 75.541902][ T5405] el0t_64_sync_handler+0xcc/0xe4 [ 75.542752][ T5405] el0t_64_sync+0x1a0/0x1a4 [ 75.544914][ T5405] BTRFS error (device loop0): failed to run delayed ref for logical 5246976 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 75.550229][ T5405] ------------[ cut here ]------------ [ 75.551351][ T5405] WARNING: CPU: 1 PID: 5405 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e8/0x460 [ 75.552984][ T5405] Modules linked in: [ 75.553601][ T5405] CPU: 1 PID: 5405 Comm: syz.0.46 Tainted: G W syzkaller #0 [ 75.555067][ T5405] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 75.556544][ T5405] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 75.557902][ T5405] pc : btrfs_run_delayed_refs+0x3e8/0x460 [ 75.558880][ T5405] lr : btrfs_run_delayed_refs+0x3e8/0x460 [ 75.559874][ T5405] sp : ffff8000225877d0 [ 75.560598][ T5405] x29: ffff8000225877e0 x28: ffff0000cb086000 x27: dfff800000000000 [ 75.562225][ T5405] x26: dfff800000000000 x25: ffff0000dd7ee8f0 x24: 1fffe0001bafdd29 [ 75.563963][ T5405] x23: ffff0000dd7ee948 x22: 00000000fffffff4 x21: 0000000000000000 [ 75.565617][ T5405] x20: 00000000fffffff4 x19: ffff0000dd7ee8f0 x18: 0000000000000000 [ 75.567023][ T5405] x17: 0000000000000000 x16: ffff80001134e478 x15: 0000000000000000 [ 75.568328][ T5405] x14: 0000000000000001 x13: 1fffe000341d2dab x12: 0000000000000000 [ 75.569710][ T5405] x11: ff8080000830061c x10: 0000000000000000 x9 : 6ef08394e68dd900 [ 75.571075][ T5405] x8 : 6ef08394e68dd900 x7 : 0000000000000001 x6 : 0000000000000001 [ 75.572398][ T5405] x5 : ffff8000225870d8 x4 : ffff80001446f500 x3 : ffff80000850f688 [ 75.573786][ T5405] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 75.575169][ T5405] Call trace: [ 75.575732][ T5405] btrfs_run_delayed_refs+0x3e8/0x460 [ 75.576703][ T5405] btrfs_commit_transaction+0x1d8/0x30ac [ 75.577678][ T5405] btrfs_ioctl_set_fslabel+0x2f8/0x3c8 [ 75.578576][ T5405] btrfs_ioctl+0x50c/0xa8c [ 75.579405][ T5405] __arm64_sys_ioctl+0x14c/0x1c8 [ 75.580328][ T5405] invoke_syscall+0x98/0x28c [ 75.581111][ T5405] el0_svc_common+0x13c/0x258 [ 75.581905][ T5405] do_el0_svc+0x5c/0x140 [ 75.582613][ T5405] el0_svc+0x78/0x1d0 [ 75.583319][ T5405] el0t_64_sync_handler+0xcc/0xe4 [ 75.584190][ T5405] el0t_64_sync+0x1a0/0x1a4 [ 75.584971][ T5405] irq event stamp: 79168 [ 75.585721][ T5405] hardirqs last enabled at (79167): [] __up_console_sem+0xb4/0xfc [ 75.587388][ T5405] hardirqs last disabled at (79168): [] el1_dbg+0x24/0x80 [ 75.588921][ T5405] softirqs last enabled at (79144): [] handle_softirqs+0xa70/0xc14 [ 75.590553][ T5405] softirqs last disabled at (79103): [] __irq_exit_rcu+0x240/0x434 [ 75.592180][ T5405] ---[ end trace 2bc8cb018f005b43 ]--- [ 75.594210][ T5405] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory