[ 51.086472][ T391] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 51.554413][ T391] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 51.594511][ T391] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 51.634996][ T391] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 Warning: Permanently added '10.128.0.10' (ED25519) to the list of known hosts. 1970/01/01 00:00:55 parsed 1 programs [ 56.108583][ T391] device hsr_slave_0 left promiscuous mode [ 56.142356][ T391] device hsr_slave_1 left promiscuous mode [ 56.231683][ T391] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 56.232971][ T391] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 56.234542][ T391] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 56.235761][ T391] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 56.237149][ T391] device bridge_slave_1 left promiscuous mode [ 56.238190][ T391] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.275527][ T391] device bridge_slave_0 left promiscuous mode [ 56.276665][ T391] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.402141][ T391] device veth1_macvtap left promiscuous mode [ 56.403283][ T391] device veth0_macvtap left promiscuous mode [ 56.404483][ T391] device veth1_vlan left promiscuous mode [ 56.405562][ T391] device veth0_vlan left promiscuous mode [ 56.496233][ T391] team0 (unregistering): Port device team_slave_1 removed [ 56.500323][ T391] team0 (unregistering): Port device team_slave_0 removed [ 56.506155][ T391] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 56.545813][ T391] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 56.664836][ T391] bond0 (unregistering): Released all slaves [ 56.843202][ T4385] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SSFS [ 58.912536][ T148] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 58.913963][ T148] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 58.915310][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 58.921435][ T148] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 58.922999][ T148] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 58.924294][ T1615] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 59.506406][ T4452] chnl_net:caif_netlink_parms(): no params data found [ 59.525354][ T4452] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.526624][ T4452] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.528237][ T4452] device bridge_slave_0 entered promiscuous mode [ 59.530364][ T4452] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.531946][ T4452] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.533569][ T4452] device bridge_slave_1 entered promiscuous mode [ 59.542146][ T4452] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.544814][ T4452] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.553913][ T4452] team0: Port device team_slave_0 added [ 59.555890][ T4452] team0: Port device team_slave_1 added [ 59.563308][ T4452] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 59.564405][ T4452] 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. [ 59.568565][ T4452] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 59.570997][ T4452] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 59.572439][ T4452] 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. [ 59.576821][ T4452] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 59.632559][ T4452] device hsr_slave_0 entered promiscuous mode [ 59.691723][ T4452] device hsr_slave_1 entered promiscuous mode [ 60.230169][ T4452] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 60.263152][ T4452] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 60.297599][ T4452] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 60.333672][ T4452] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 60.511185][ T4452] 8021q: adding VLAN 0 to HW filter on device bond0 [ 60.526285][ T1615] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 60.527909][ T1615] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 60.531282][ T4452] 8021q: adding VLAN 0 to HW filter on device team0 [ 60.542260][ T1615] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 60.544044][ T1615] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 60.545674][ T1615] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.546867][ T1615] bridge0: port 1(bridge_slave_0) entered forwarding state [ 60.548613][ T1615] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 60.562475][ T266] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 60.564254][ T266] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 60.565923][ T266] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.567141][ T266] bridge0: port 2(bridge_slave_1) entered forwarding state [ 60.569759][ T1615] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 60.585943][ T266] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 60.588036][ T266] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 60.592633][ T266] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 60.597079][ T266] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 60.599953][ T266] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 60.612795][ T266] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 60.615405][ T266] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 60.617127][ T266] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 60.620519][ T4452] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 60.622794][ T4452] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 60.624590][ T266] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 60.626409][ T266] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 60.735974][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 60.737411][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 60.751619][ T4452] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 60.758309][ T1615] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 60.760011][ T1615] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 60.776720][ T1615] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 60.778551][ T1615] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 60.780738][ T1615] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 60.784044][ T1615] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 60.787970][ T4452] device veth0_vlan entered promiscuous mode [ 60.791089][ T4452] device veth1_vlan entered promiscuous mode [ 60.805115][ T1615] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 60.806776][ T1615] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 60.808337][ T1615] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 60.809889][ T1615] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 60.814386][ T4452] device veth0_macvtap entered promiscuous mode [ 60.816888][ T4452] device veth1_macvtap entered promiscuous mode [ 60.825986][ T4452] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 60.828131][ T1615] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 60.829835][ T1615] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 60.831434][ T1615] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 60.833888][ T1615] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 60.837258][ T4452] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 60.839273][ T1615] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 60.840998][ T1615] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 60.845292][ T4452] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 60.846772][ T4452] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 60.848538][ T4452] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 60.849982][ T4452] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 1970/01/01 00:01:01 executed programs: 0 [ 61.132499][ T4609] chnl_net:caif_netlink_parms(): no params data found [ 61.150657][ T4609] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.153918][ T4609] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.156004][ T4609] device bridge_slave_0 entered promiscuous mode [ 61.158350][ T4609] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.159539][ T4609] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.161117][ T4609] device bridge_slave_1 entered promiscuous mode [ 61.170586][ T4609] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 61.175542][ T4609] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 61.183998][ T4609] team0: Port device team_slave_0 added [ 61.185933][ T4609] team0: Port device team_slave_1 added [ 61.195276][ T4609] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 61.196460][ T4609] 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. [ 61.201564][ T4609] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 61.204214][ T4609] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 61.205467][ T4609] 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. [ 61.209931][ T4609] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 61.272810][ T4609] device hsr_slave_0 entered promiscuous mode [ 61.291710][ T4609] device hsr_slave_1 entered promiscuous mode [ 61.341559][ T4609] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 61.342928][ T4609] Cannot create hsr debugfs directory [ 61.375759][ T4609] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 63.141622][ T4140] Bluetooth: hci0: command 0x0409 tx timeout [ 64.115117][ T4609] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 65.231577][ T7] Bluetooth: hci0: command 0x041b tx timeout [ 66.605090][ T4609] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 66.655756][ T4609] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 66.804633][ T4609] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 66.843402][ T4609] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 66.892603][ T4609] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 66.932706][ T4609] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 67.013321][ T4609] 8021q: adding VLAN 0 to HW filter on device bond0 [ 67.017825][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 67.019473][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 67.022360][ T4609] 8021q: adding VLAN 0 to HW filter on device team0 [ 67.024844][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 67.026515][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 67.028159][ T136] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.029366][ T136] bridge0: port 1(bridge_slave_0) entered forwarding state [ 67.030739][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 67.052822][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 67.054545][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 67.056110][ T136] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.057328][ T136] bridge0: port 2(bridge_slave_1) entered forwarding state [ 67.059821][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 67.065426][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 67.068368][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 67.070391][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 67.072600][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 67.076287][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 67.077976][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 67.081336][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 67.083790][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 67.086680][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 67.088360][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 67.091424][ T4609] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 67.132560][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 67.133945][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 67.137628][ T4609] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 67.144803][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 67.146673][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 67.152945][ T1615] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 67.154623][ T1615] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 67.156365][ T1615] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 67.157753][ T1615] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 67.160659][ T4609] device veth0_vlan entered promiscuous mode [ 67.165072][ T4609] device veth1_vlan entered promiscuous mode [ 67.172294][ T1615] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 67.173981][ T1615] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 67.175574][ T1615] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 67.177258][ T1615] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 67.179919][ T4609] device veth0_macvtap entered promiscuous mode [ 67.183167][ T4609] device veth1_macvtap entered promiscuous mode [ 67.187799][ T4609] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 67.189573][ T4609] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 67.192045][ T4609] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 67.193334][ T1615] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 67.194965][ T1615] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 67.196738][ T1615] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 67.198236][ T1615] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 67.200721][ T4609] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 67.202827][ T4609] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 67.204921][ T4609] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 67.206500][ T1615] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 67.208163][ T1615] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 67.210877][ T4609] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.212941][ T4609] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.214376][ T4609] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.216019][ T4609] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.236995][ T1615] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 67.239556][ T1615] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 67.244271][ T266] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 67.248410][ T1615] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 67.249698][ T1615] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 67.250988][ T1615] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 1970/01/01 00:01:07 executed programs: 2 [ 67.301723][ T4246] Bluetooth: hci0: command 0x040f tx timeout [ 67.372469][ T4723] loop0: detected capacity change from 0 to 32768 [ 67.471751][ T4723] BTRFS: device fsid 395ef67a-297e-477c-816d-cd80a5b93e5d devid 1 transid 8 /dev/loop0 scanned by syz.0.16 (4723) [ 67.479176][ T4723] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 67.480772][ T4723] BTRFS info (device loop0): using free space tree [ 67.482967][ T4723] BTRFS info (device loop0): has skinny extents [ 67.501803][ T4723] BTRFS info (device loop0): enabling ssd optimizations [ 67.523084][ T4723] BTRFS info (device loop0): balance: start -s [ 67.525865][ T4723] ------------[ cut here ]------------ [ 67.526959][ T4723] WARNING: CPU: 1 PID: 4723 at fs/btrfs/block-group.c:2441 btrfs_create_pending_block_groups+0xa8c/0xd1c [ 67.528870][ T4723] Modules linked in: [ 67.529518][ T4723] CPU: 1 PID: 4723 Comm: syz.0.16 Not tainted syzkaller #0 [ 67.530633][ T4723] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 67.532315][ T4723] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 67.533693][ T4723] pc : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 67.534866][ T4723] lr : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 67.536046][ T4723] sp : ffff80001ff17560 [ 67.536774][ T4723] x29: ffff80001ff17720 x28: dfff800000000000 x27: ffff0000dea9d000 [ 67.538165][ T4723] x26: 1fffe00019a69d0b x25: ffff0000cd34e858 x24: 1fffe00019a69d0a [ 67.539628][ T4723] x23: ffff0000cd34e850 x22: 00000000ffffffe4 x21: ffff0000cd34e9b0 [ 67.541082][ T4723] x20: ffff0000ee0a19d0 x19: 0000000000000000 x18: 0000000000000000 [ 67.542512][ T4723] x17: 0000000000000000 x16: ffff80001135f958 x15: 0000000000000000 [ 67.543901][ T4723] x14: 0000000000000001 x13: 1fffe000341d09ab x12: 0000000000000000 [ 67.545366][ T4723] x11: ff80800008300a38 x10: 0000000000000000 x9 : 72933e8f8a8f8c00 [ 67.546798][ T4723] x8 : 72933e8f8a8f8c00 x7 : 0000000000000001 x6 : 0000000000000001 [ 67.548168][ T4723] x5 : ffff80001ff16e78 x4 : ffff80001447f520 x3 : ffff80000850fcd0 [ 67.549615][ T4723] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 67.551071][ T4723] Call trace: [ 67.551643][ T4723] btrfs_create_pending_block_groups+0xa8c/0xd1c [ 67.552728][ T4723] __btrfs_end_transaction+0x148/0x5fc [ 67.553655][ T4723] btrfs_end_transaction+0x24/0x34 [ 67.554535][ T4723] btrfs_inc_block_group_ro+0x4f0/0x568 [ 67.555521][ T4723] btrfs_relocate_block_group+0x2c8/0x89c [ 67.556482][ T4723] btrfs_relocate_chunk+0xb8/0x284 [ 67.557415][ T4723] __btrfs_balance+0x1214/0x1c44 [ 67.558330][ T4723] btrfs_balance+0xad0/0x10f8 [ 67.559140][ T4723] btrfs_ioctl_balance+0x4d4/0x660 [ 67.560028][ T4723] btrfs_ioctl+0x20c/0xa8c [ 67.560870][ T4723] __arm64_sys_ioctl+0x14c/0x1c8 [ 67.561760][ T4723] invoke_syscall+0x98/0x28c [ 67.562586][ T4723] el0_svc_common+0x13c/0x258 [ 67.563453][ T4723] do_el0_svc+0x5c/0x140 [ 67.564190][ T4723] el0_svc+0x78/0x1d0 [ 67.564897][ T4723] el0t_64_sync_handler+0xcc/0xe4 [ 67.565804][ T4723] el0t_64_sync+0x1a0/0x1a4 [ 67.566596][ T4723] irq event stamp: 81358 [ 67.567305][ T4723] hardirqs last enabled at (81357): [] __up_console_sem+0xb4/0xfc [ 67.569006][ T4723] hardirqs last disabled at (81358): [] el1_dbg+0x24/0x80 [ 67.570545][ T4723] softirqs last enabled at (80730): [] local_bh_enable+0x10/0x34 [ 67.572148][ T4723] softirqs last disabled at (80728): [] local_bh_disable+0x10/0x34 [ 67.573722][ T4723] ---[ end trace a5c2d28934b2c9ce ]--- [ 67.577659][ T4723] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2441: errno=-28 No space left [ 67.579435][ T4723] BTRFS info (device loop0): forced readonly [ 67.580589][ T4723] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2452: errno=-28 No space left [ 67.583001][ T4723] BTRFS: error (device loop0) in add_block_group_free_space:1315: errno=-28 No space left [ 67.585574][ T4723] BTRFS info (device loop0): balance: ended with status: -30 [ 67.819167][ T4746] loop0: detected capacity change from 0 to 32768 [ 67.870981][ T4746] BTRFS: device fsid 395ef67a-297e-477c-816d-cd80a5b93e5d devid 1 transid 8 /dev/loop0 scanned by syz.0.17 (4746) [ 67.875844][ T4746] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 67.877302][ T4746] BTRFS info (device loop0): using free space tree [ 67.878327][ T4746] BTRFS info (device loop0): has skinny extents [ 67.896275][ T4746] BTRFS info (device loop0): enabling ssd optimizations [ 67.902460][ T4746] BTRFS info (device loop0): balance: start -s [ 67.903784][ T4746] ------------[ cut here ]------------ [ 67.904819][ T4746] WARNING: CPU: 1 PID: 4746 at fs/btrfs/block-group.c:2441 btrfs_create_pending_block_groups+0xa8c/0xd1c [ 67.906658][ T4746] Modules linked in: [ 67.907243][ T4746] CPU: 1 PID: 4746 Comm: syz.0.17 Tainted: G W syzkaller #0 [ 67.908715][ T4746] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 67.910400][ T4746] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 67.911797][ T4746] pc : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 67.912981][ T4746] lr : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 67.914098][ T4746] sp : ffff80001ff17560 [ 67.914752][ T4746] x29: ffff80001ff17720 x28: dfff800000000000 x27: ffff0000dea9d160 [ 67.916103][ T4746] x26: 1fffe00019a6070b x25: ffff0000cd303858 x24: 1fffe00019a6070a [ 67.917568][ T4746] x23: ffff0000cd303850 x22: 00000000ffffffe4 x21: ffff0000cd3039b0 [ 67.918993][ T4746] x20: ffff0000d1a819d0 x19: 0000000000000000 x18: 0000000000000000 [ 67.920561][ T4746] x17: 0000000000000000 x16: ffff80001135f958 x15: 0000000000000000 [ 67.922019][ T4746] x14: 0000000000000001 x13: 1fffe000341d09ab x12: 0000000000000000 [ 67.923516][ T4746] x11: ff80800008300a38 x10: 0000000000000000 x9 : f078b05231ab2a00 [ 67.924944][ T4746] x8 : f078b05231ab2a00 x7 : 0000000000000001 x6 : 0000000000000001 [ 67.926403][ T4746] x5 : ffff80001ff16e78 x4 : ffff80001447f520 x3 : ffff80000850fcd0 [ 67.927914][ T4746] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 67.929448][ T4746] Call trace: [ 67.930048][ T4746] btrfs_create_pending_block_groups+0xa8c/0xd1c [ 67.931307][ T4746] __btrfs_end_transaction+0x148/0x5fc [ 67.932335][ T4746] btrfs_end_transaction+0x24/0x34 [ 67.933308][ T4746] btrfs_inc_block_group_ro+0x4f0/0x568 [ 67.934334][ T4746] btrfs_relocate_block_group+0x2c8/0x89c [ 67.935343][ T4746] btrfs_relocate_chunk+0xb8/0x284 [ 67.936209][ T4746] __btrfs_balance+0x1214/0x1c44 [ 67.937058][ T4746] btrfs_balance+0xad0/0x10f8 [ 67.937891][ T4746] btrfs_ioctl_balance+0x4d4/0x660 [ 67.938734][ T4746] btrfs_ioctl+0x20c/0xa8c [ 67.939485][ T4746] __arm64_sys_ioctl+0x14c/0x1c8 [ 67.940336][ T4746] invoke_syscall+0x98/0x28c [ 67.941130][ T4746] el0_svc_common+0x13c/0x258 [ 67.941924][ T4746] do_el0_svc+0x5c/0x140 [ 67.942661][ T4746] el0_svc+0x78/0x1d0 [ 67.943352][ T4746] el0t_64_sync_handler+0xcc/0xe4 [ 67.944236][ T4746] el0t_64_sync+0x1a0/0x1a4 [ 67.945006][ T4746] irq event stamp: 79376 [ 67.945716][ T4746] hardirqs last enabled at (79375): [] __up_console_sem+0xb4/0xfc [ 67.947379][ T4746] hardirqs last disabled at (79376): [] el1_dbg+0x24/0x80 [ 67.948902][ T4746] softirqs last enabled at (79248): [] local_bh_enable+0x10/0x34 [ 67.950481][ T4746] softirqs last disabled at (79246): [] local_bh_disable+0x10/0x34 [ 67.952182][ T4746] ---[ end trace a5c2d28934b2c9cf ]--- [ 67.956775][ T4746] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2441: errno=-28 No space left [ 67.958594][ T4746] BTRFS info (device loop0): forced readonly [ 67.959626][ T4746] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2452: errno=-28 No space left [ 67.961854][ T4746] BTRFS: error (device loop0) in add_block_group_free_space:1315: errno=-28 No space left [ 67.963881][ T4746] BTRFS info (device loop0): balance: ended with status: -30 [ 68.152744][ T4768] loop0: detected capacity change from 0 to 32768 [ 68.202846][ T4768] BTRFS: device fsid 395ef67a-297e-477c-816d-cd80a5b93e5d devid 1 transid 8 /dev/loop0 scanned by syz.0.18 (4768) [ 68.206214][ T4768] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 68.207654][ T4768] BTRFS info (device loop0): using free space tree [ 68.208906][ T4768] BTRFS info (device loop0): has skinny extents [ 68.223480][ T4768] BTRFS info (device loop0): enabling ssd optimizations [ 68.228473][ T4768] BTRFS info (device loop0): balance: start -s [ 68.230118][ T4768] ------------[ cut here ]------------ [ 68.231242][ T4768] WARNING: CPU: 1 PID: 4768 at fs/btrfs/block-group.c:2441 btrfs_create_pending_block_groups+0xa8c/0xd1c [ 68.233415][ T4768] Modules linked in: [ 68.234168][ T4768] CPU: 1 PID: 4768 Comm: syz.0.18 Tainted: G W syzkaller #0 [ 68.235889][ T4768] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 68.237750][ T4768] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 68.239161][ T4768] pc : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 68.240423][ T4768] lr : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 68.241588][ T4768] sp : ffff800020147560 [ 68.242307][ T4768] x29: ffff800020147720 x28: dfff800000000000 x27: ffff0000dea9d2c0 [ 68.243749][ T4768] x26: 1fffe0001b5c2a0b x25: ffff0000dae15058 x24: 1fffe0001b5c2a0a [ 68.245154][ T4768] x23: ffff0000dae15050 x22: 00000000ffffffe4 x21: ffff0000dae151b0 [ 68.246523][ T4768] x20: ffff0000cdb559d0 x19: 0000000000000000 x18: 0000000000000000 [ 68.247971][ T4768] x17: 0000000000000000 x16: ffff80001135f958 x15: 0000000000000000 [ 68.249381][ T4768] x14: 0000000000000001 x13: 1fffe000341d09ab x12: 0000000000000000 [ 68.250811][ T4768] x11: ff80800008300a38 x10: 0000000000000000 x9 : 7d1e2a6554686100 [ 68.252256][ T4768] x8 : 7d1e2a6554686100 x7 : 0000000000000001 x6 : 0000000000000001 [ 68.253713][ T4768] x5 : ffff800020146e78 x4 : ffff80001447f520 x3 : ffff80000850fcd0 [ 68.255174][ T4768] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 68.256659][ T4768] Call trace: [ 68.257258][ T4768] btrfs_create_pending_block_groups+0xa8c/0xd1c [ 68.258308][ T4768] __btrfs_end_transaction+0x148/0x5fc [ 68.259292][ T4768] btrfs_end_transaction+0x24/0x34 [ 68.260158][ T4768] btrfs_inc_block_group_ro+0x4f0/0x568 [ 68.261187][ T4768] btrfs_relocate_block_group+0x2c8/0x89c [ 68.262164][ T4768] btrfs_relocate_chunk+0xb8/0x284 [ 68.263069][ T4768] __btrfs_balance+0x1214/0x1c44 [ 68.263986][ T4768] btrfs_balance+0xad0/0x10f8 [ 68.264806][ T4768] btrfs_ioctl_balance+0x4d4/0x660 [ 68.265641][ T4768] btrfs_ioctl+0x20c/0xa8c [ 68.266380][ T4768] __arm64_sys_ioctl+0x14c/0x1c8 [ 68.267214][ T4768] invoke_syscall+0x98/0x28c [ 68.267967][ T4768] el0_svc_common+0x13c/0x258 [ 68.268733][ T4768] do_el0_svc+0x5c/0x140 [ 68.269425][ T4768] el0_svc+0x78/0x1d0 [ 68.270083][ T4768] el0t_64_sync_handler+0xcc/0xe4 [ 68.271033][ T4768] el0t_64_sync+0x1a0/0x1a4 [ 68.271863][ T4768] irq event stamp: 79344 [ 68.272581][ T4768] hardirqs last enabled at (79343): [] __up_console_sem+0xb4/0xfc [ 68.274276][ T4768] hardirqs last disabled at (79344): [] el1_dbg+0x24/0x80 [ 68.275786][ T4768] softirqs last enabled at (79200): [] local_bh_enable+0x10/0x34 [ 68.277485][ T4768] softirqs last disabled at (79198): [] local_bh_disable+0x10/0x34 [ 68.279110][ T4768] ---[ end trace a5c2d28934b2c9d0 ]--- [ 68.283472][ T4768] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2441: errno=-28 No space left [ 68.285268][ T4768] BTRFS info (device loop0): forced readonly [ 68.286394][ T4768] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2452: errno=-28 No space left [ 68.288376][ T4768] BTRFS: error (device loop0) in add_block_group_free_space:1315: errno=-28 No space left [ 68.290182][ T4768] BTRFS info (device loop0): balance: ended with status: -30 [ 68.432832][ T4790] loop0: detected capacity change from 0 to 32768 [ 68.526163][ T4790] BTRFS: device fsid 395ef67a-297e-477c-816d-cd80a5b93e5d devid 1 transid 8 /dev/loop0 scanned by syz.0.19 (4790) [ 68.535703][ T4790] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 68.537272][ T4790] BTRFS info (device loop0): using free space tree [ 68.538368][ T4790] BTRFS info (device loop0): has skinny extents [ 68.561924][ T4790] BTRFS info (device loop0): enabling ssd optimizations [ 68.567841][ T4790] BTRFS info (device loop0): balance: start -s [ 68.569372][ T4790] ------------[ cut here ]------------ [ 68.570436][ T4790] WARNING: CPU: 0 PID: 4790 at fs/btrfs/block-group.c:2441 btrfs_create_pending_block_groups+0xa8c/0xd1c [ 68.572352][ T4790] Modules linked in: [ 68.573042][ T4790] CPU: 0 PID: 4790 Comm: syz.0.19 Tainted: G W syzkaller #0 [ 68.574649][ T4790] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 68.576487][ T4790] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 68.578137][ T4790] pc : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 68.579563][ T4790] lr : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 68.580920][ T4790] sp : ffff800020317560 [ 68.581687][ T4790] x29: ffff800020317720 x28: dfff800000000000 x27: ffff0000dea37160 [ 68.583281][ T4790] x26: 1fffe0001b0cda0b x25: ffff0000d866d058 x24: 1fffe0001b0cda0a [ 68.584755][ T4790] x23: ffff0000d866d050 x22: 00000000ffffffe4 x21: ffff0000d866d1b0 [ 68.586262][ T4790] x20: ffff0000d82499d0 x19: 0000000000000000 x18: 0000000000000000 [ 68.587657][ T4790] x17: 0000000000000000 x16: ffff80001135f958 x15: 0000000000000000 [ 68.589049][ T4790] x14: 0000000000000001 x13: 1fffe000341cc7ab x12: 0000000000000000 [ 68.590452][ T4790] x11: ff80800008300a38 x10: 0000000000000000 x9 : 2978befc9a7aa500 [ 68.591941][ T4790] x8 : 2978befc9a7aa500 x7 : 0000000000000001 x6 : 0000000000000001 [ 68.593344][ T4790] x5 : ffff800020316e78 x4 : ffff80001447f520 x3 : ffff80000850fcd0 [ 68.594788][ T4790] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 68.596155][ T4790] Call trace: [ 68.596728][ T4790] btrfs_create_pending_block_groups+0xa8c/0xd1c [ 68.597851][ T4790] __btrfs_end_transaction+0x148/0x5fc [ 68.598848][ T4790] btrfs_end_transaction+0x24/0x34 [ 68.599751][ T4790] btrfs_inc_block_group_ro+0x4f0/0x568 [ 68.600688][ T4790] btrfs_relocate_block_group+0x2c8/0x89c [ 68.601672][ T4790] btrfs_relocate_chunk+0xb8/0x284 [ 68.602525][ T4790] __btrfs_balance+0x1214/0x1c44 [ 68.603396][ T4790] btrfs_balance+0xad0/0x10f8 [ 68.604205][ T4790] btrfs_ioctl_balance+0x4d4/0x660 [ 68.605087][ T4790] btrfs_ioctl+0x20c/0xa8c [ 68.605861][ T4790] __arm64_sys_ioctl+0x14c/0x1c8 [ 68.606727][ T4790] invoke_syscall+0x98/0x28c [ 68.607555][ T4790] el0_svc_common+0x13c/0x258 [ 68.608422][ T4790] do_el0_svc+0x5c/0x140 [ 68.609148][ T4790] el0_svc+0x78/0x1d0 [ 68.609868][ T4790] el0t_64_sync_handler+0xcc/0xe4 [ 68.610752][ T4790] el0t_64_sync+0x1a0/0x1a4 [ 68.611543][ T4790] irq event stamp: 80838 [ 68.612274][ T4790] hardirqs last enabled at (80837): [] __up_console_sem+0xb4/0xfc [ 68.613921][ T4790] hardirqs last disabled at (80838): [] el1_dbg+0x24/0x80 [ 68.615478][ T4790] softirqs last enabled at (80712): [] local_bh_enable+0x10/0x34 [ 68.617120][ T4790] softirqs last disabled at (80710): [] local_bh_disable+0x10/0x34 [ 68.618805][ T4790] ---[ end trace a5c2d28934b2c9d1 ]--- [ 68.622561][ T4790] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2441: errno=-28 No space left [ 68.624475][ T4790] BTRFS info (device loop0): forced readonly [ 68.625616][ T4790] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2452: errno=-28 No space left [ 68.627444][ T4790] BTRFS: error (device loop0) in add_block_group_free_space:1315: errno=-28 No space left [ 68.629324][ T4790] BTRFS info (device loop0): balance: ended with status: -30 [ 68.768925][ T4812] loop0: detected capacity change from 0 to 32768 [ 68.802887][ T4812] BTRFS: device fsid 395ef67a-297e-477c-816d-cd80a5b93e5d devid 1 transid 8 /dev/loop0 scanned by syz.0.20 (4812) [ 68.844298][ T4812] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 68.845911][ T4812] BTRFS info (device loop0): using free space tree [ 68.847076][ T4812] BTRFS info (device loop0): has skinny extents [ 68.856617][ T4812] BTRFS info (device loop0): enabling ssd optimizations [ 68.875326][ T4812] BTRFS info (device loop0): balance: start -s [ 68.876730][ T4812] ------------[ cut here ]------------ [ 68.877793][ T4812] WARNING: CPU: 0 PID: 4812 at fs/btrfs/block-group.c:2441 btrfs_create_pending_block_groups+0xa8c/0xd1c [ 68.879601][ T4812] Modules linked in: [ 68.880254][ T4812] CPU: 0 PID: 4812 Comm: syz.0.20 Tainted: G W syzkaller #0 [ 68.881742][ T4812] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 68.883523][ T4812] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 68.884969][ T4812] pc : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 68.886230][ T4812] lr : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 68.887365][ T4812] sp : ffff8000204c7560 [ 68.888103][ T4812] x29: ffff8000204c7720 x28: dfff800000000000 x27: ffff0000dea372c0 [ 68.889468][ T4812] x26: 1fffe0001aecff0b x25: ffff0000d767f858 x24: 1fffe0001aecff0a [ 68.890902][ T4812] x23: ffff0000d767f850 x22: 00000000ffffffe4 x21: ffff0000d767f9b0 [ 68.892342][ T4812] x20: ffff0000ede099d0 x19: 0000000000000000 x18: 0000000000000000 [ 68.893837][ T4812] x17: 0000000000000000 x16: ffff80001135f958 x15: 0000000000000000 [ 68.895328][ T4812] x14: 0000000000000001 x13: 1fffe000341cc7ab x12: 0000000000000000 [ 68.896723][ T4812] x11: ff80800008300a38 x10: 0000000000000000 x9 : 5efc61991edc5700 [ 68.898202][ T4812] x8 : 5efc61991edc5700 x7 : 0000000000000001 x6 : 0000000000000001 [ 68.899716][ T4812] x5 : ffff8000204c6e78 x4 : ffff80001447f520 x3 : ffff80000850fcd0 [ 68.901166][ T4812] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 68.902625][ T4812] Call trace: [ 68.903209][ T4812] btrfs_create_pending_block_groups+0xa8c/0xd1c [ 68.904301][ T4812] __btrfs_end_transaction+0x148/0x5fc [ 68.905203][ T4812] btrfs_end_transaction+0x24/0x34 [ 68.906076][ T4812] btrfs_inc_block_group_ro+0x4f0/0x568 [ 68.907055][ T4812] btrfs_relocate_block_group+0x2c8/0x89c [ 68.908012][ T4812] btrfs_relocate_chunk+0xb8/0x284 [ 68.908896][ T4812] __btrfs_balance+0x1214/0x1c44 [ 68.909725][ T4812] btrfs_balance+0xad0/0x10f8 [ 68.910491][ T4812] btrfs_ioctl_balance+0x4d4/0x660 [ 68.911357][ T4812] btrfs_ioctl+0x20c/0xa8c [ 68.912084][ T4812] __arm64_sys_ioctl+0x14c/0x1c8 [ 68.912956][ T4812] invoke_syscall+0x98/0x28c [ 68.913794][ T4812] el0_svc_common+0x13c/0x258 [ 68.914653][ T4812] do_el0_svc+0x5c/0x140 [ 68.915401][ T4812] el0_svc+0x78/0x1d0 [ 68.916065][ T4812] el0t_64_sync_handler+0xcc/0xe4 [ 68.916923][ T4812] el0t_64_sync+0x1a0/0x1a4 [ 68.917709][ T4812] irq event stamp: 79130 [ 68.918413][ T4812] hardirqs last enabled at (79129): [] __up_console_sem+0xb4/0xfc [ 68.920120][ T4812] hardirqs last disabled at (79130): [] el1_dbg+0x24/0x80 [ 68.921604][ T4812] softirqs last enabled at (79008): [] local_bh_enable+0x10/0x34 [ 68.923210][ T4812] softirqs last disabled at (79006): [] local_bh_disable+0x10/0x34 [ 68.924856][ T4812] ---[ end trace a5c2d28934b2c9d2 ]--- [ 68.932165][ T4812] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2441: errno=-28 No space left [ 68.934188][ T4812] BTRFS info (device loop0): forced readonly [ 68.935371][ T4812] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2452: errno=-28 No space left [ 68.937430][ T4812] BTRFS: error (device loop0) in add_block_group_free_space:1315: errno=-28 No space left [ 68.939401][ T4812] BTRFS info (device loop0): balance: ended with status: -30 [ 69.079922][ T4835] loop0: detected capacity change from 0 to 32768 [ 69.087923][ T4835] BTRFS: device fsid 395ef67a-297e-477c-816d-cd80a5b93e5d devid 1 transid 8 /dev/loop0 scanned by syz.0.21 (4835) [ 69.093346][ T4835] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 69.094777][ T4835] BTRFS info (device loop0): using free space tree [ 69.095782][ T4835] BTRFS info (device loop0): has skinny extents [ 69.104346][ T4835] BTRFS info (device loop0): enabling ssd optimizations [ 69.108846][ T4835] BTRFS info (device loop0): balance: start -s [ 69.110673][ T4835] ------------[ cut here ]------------ [ 69.112735][ T4835] WARNING: CPU: 1 PID: 4835 at fs/btrfs/block-group.c:2441 btrfs_create_pending_block_groups+0xa8c/0xd1c [ 69.114536][ T4835] Modules linked in: [ 69.115265][ T4835] CPU: 1 PID: 4835 Comm: syz.0.21 Tainted: G W syzkaller #0 [ 69.116720][ T4835] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 69.118489][ T4835] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 69.119808][ T4835] pc : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 69.120890][ T4835] lr : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 69.122025][ T4835] sp : ffff8000205e7560 [ 69.122708][ T4835] x29: ffff8000205e7720 x28: dfff800000000000 x27: ffff0000dea9d420 [ 69.124107][ T4835] x26: 1fffe0001acb100b x25: ffff0000d6588058 x24: 1fffe0001acb100a [ 69.125500][ T4835] x23: ffff0000d6588050 x22: 00000000ffffffe4 x21: ffff0000d65881b0 [ 69.126930][ T4835] x20: ffff0000da5219d0 x19: 0000000000000000 x18: 0000000000000000 [ 69.128365][ T4835] x17: 0000000000000000 x16: ffff80001135f958 x15: 0000000000000000 [ 69.129785][ T4835] x14: 0000000000000001 x13: 1fffe000341d09ab x12: 0000000000000000 [ 69.131176][ T4835] x11: ff80800008300a38 x10: 0000000000000000 x9 : 79ce9b5f6f2c1800 [ 69.132582][ T4835] x8 : 79ce9b5f6f2c1800 x7 : 0000000000000001 x6 : 0000000000000001 [ 69.134000][ T4835] x5 : ffff8000205e6e78 x4 : ffff80001447f520 x3 : ffff80000850fcd0 [ 69.135405][ T4835] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 69.136819][ T4835] Call trace: [ 69.137389][ T4835] btrfs_create_pending_block_groups+0xa8c/0xd1c [ 69.138469][ T4835] __btrfs_end_transaction+0x148/0x5fc [ 69.139358][ T4835] btrfs_end_transaction+0x24/0x34 [ 69.140234][ T4835] btrfs_inc_block_group_ro+0x4f0/0x568 [ 69.141189][ T4835] btrfs_relocate_block_group+0x2c8/0x89c [ 69.142151][ T4835] btrfs_relocate_chunk+0xb8/0x284 [ 69.143021][ T4835] __btrfs_balance+0x1214/0x1c44 [ 69.143891][ T4835] btrfs_balance+0xad0/0x10f8 [ 69.144663][ T4835] btrfs_ioctl_balance+0x4d4/0x660 [ 69.145530][ T4835] btrfs_ioctl+0x20c/0xa8c [ 69.146310][ T4835] __arm64_sys_ioctl+0x14c/0x1c8 [ 69.147167][ T4835] invoke_syscall+0x98/0x28c [ 69.147996][ T4835] el0_svc_common+0x13c/0x258 [ 69.148790][ T4835] do_el0_svc+0x5c/0x140 [ 69.149519][ T4835] el0_svc+0x78/0x1d0 [ 69.150215][ T4835] el0t_64_sync_handler+0xcc/0xe4 [ 69.151095][ T4835] el0t_64_sync+0x1a0/0x1a4 [ 69.151888][ T4835] irq event stamp: 79666 [ 69.152637][ T4835] hardirqs last enabled at (79665): [] __up_console_sem+0xb4/0xfc [ 69.154346][ T4835] hardirqs last disabled at (79666): [] el1_dbg+0x24/0x80 [ 69.155897][ T4835] softirqs last enabled at (79654): [] handle_softirqs+0xa70/0xc14 [ 69.157647][ T4835] softirqs last disabled at (79641): [] __irq_exit_rcu+0x240/0x434 [ 69.159347][ T4835] ---[ end trace a5c2d28934b2c9d3 ]--- [ 69.163692][ T4835] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2441: errno=-28 No space left [ 69.165697][ T4835] BTRFS info (device loop0): forced readonly [ 69.166888][ T4835] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2452: errno=-28 No space left [ 69.168734][ T4835] BTRFS: error (device loop0) in add_block_group_free_space:1315: errno=-28 No space left [ 69.170694][ T4835] BTRFS info (device loop0): balance: ended with status: -30 [ 69.313536][ T4857] loop0: detected capacity change from 0 to 32768 [ 69.362722][ T4857] BTRFS: device fsid 395ef67a-297e-477c-816d-cd80a5b93e5d devid 1 transid 8 /dev/loop0 scanned by syz.0.22 (4857) [ 69.381731][ T4238] Bluetooth: hci0: command 0x0419 tx timeout [ 69.405679][ T4857] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 69.407211][ T4857] BTRFS info (device loop0): using free space tree [ 69.408390][ T4857] BTRFS info (device loop0): has skinny extents [ 69.416817][ T4857] BTRFS info (device loop0): enabling ssd optimizations [ 69.423535][ T4857] BTRFS info (device loop0): balance: start -s [ 69.424960][ T4857] ------------[ cut here ]------------ [ 69.426097][ T4857] WARNING: CPU: 1 PID: 4857 at fs/btrfs/block-group.c:2441 btrfs_create_pending_block_groups+0xa8c/0xd1c [ 69.428025][ T4857] Modules linked in: [ 69.428681][ T4857] CPU: 1 PID: 4857 Comm: syz.0.22 Tainted: G W syzkaller #0 [ 69.430100][ T4857] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 69.431779][ T4857] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 69.433129][ T4857] pc : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 69.434420][ T4857] lr : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 69.435644][ T4857] sp : ffff800020707560 [ 69.436416][ T4857] x29: ffff800020707720 x28: dfff800000000000 x27: ffff0000dea9d580 [ 69.437798][ T4857] x26: 1fffe00018cb560b x25: ffff0000c65ab058 x24: 1fffe00018cb560a [ 69.439152][ T4857] x23: ffff0000c65ab050 x22: 00000000ffffffe4 x21: ffff0000c65ab1b0 [ 69.440575][ T4857] x20: ffff0000da5219d0 x19: 0000000000000000 x18: 0000000000000000 [ 69.442007][ T4857] x17: 0000000000000000 x16: ffff80001135f958 x15: 0000000000000000 [ 69.443400][ T4857] x14: 0000000000000001 x13: 1fffe000341d09ab x12: 0000000000000000 [ 69.444856][ T4857] x11: ff80800008300a38 x10: 0000000000000000 x9 : a34cde9899bbb900 [ 69.446386][ T4857] x8 : a34cde9899bbb900 x7 : 0000000000000001 x6 : 0000000000000001 [ 69.447874][ T4857] x5 : ffff800020706e78 x4 : ffff80001447f520 x3 : ffff80000850fcd0 [ 69.449280][ T4857] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 69.450682][ T4857] Call trace: [ 69.451224][ T4857] btrfs_create_pending_block_groups+0xa8c/0xd1c [ 69.452280][ T4857] __btrfs_end_transaction+0x148/0x5fc [ 69.453223][ T4857] btrfs_end_transaction+0x24/0x34 [ 69.454091][ T4857] btrfs_inc_block_group_ro+0x4f0/0x568 [ 69.454977][ T4857] btrfs_relocate_block_group+0x2c8/0x89c [ 69.455974][ T4857] btrfs_relocate_chunk+0xb8/0x284 [ 69.456845][ T4857] __btrfs_balance+0x1214/0x1c44 [ 69.457656][ T4857] btrfs_balance+0xad0/0x10f8 [ 69.458496][ T4857] btrfs_ioctl_balance+0x4d4/0x660 [ 69.459351][ T4857] btrfs_ioctl+0x20c/0xa8c [ 69.460111][ T4857] __arm64_sys_ioctl+0x14c/0x1c8 [ 69.460887][ T4857] invoke_syscall+0x98/0x28c [ 69.461839][ T4857] el0_svc_common+0x13c/0x258 [ 69.462708][ T4857] do_el0_svc+0x5c/0x140 [ 69.463493][ T4857] el0_svc+0x78/0x1d0 [ 69.464241][ T4857] el0t_64_sync_handler+0xcc/0xe4 [ 69.465076][ T4857] el0t_64_sync+0x1a0/0x1a4 [ 69.465824][ T4857] irq event stamp: 79692 [ 69.466537][ T4857] hardirqs last enabled at (79691): [] __up_console_sem+0xb4/0xfc [ 69.468145][ T4857] hardirqs last disabled at (79692): [] el1_dbg+0x24/0x80 [ 69.469619][ T4857] softirqs last enabled at (79554): [] local_bh_enable+0x10/0x34 [ 69.471304][ T4857] softirqs last disabled at (79552): [] local_bh_disable+0x10/0x34 [ 69.473064][ T4857] ---[ end trace a5c2d28934b2c9d4 ]--- [ 69.476730][ T4857] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2441: errno=-28 No space left [ 69.478508][ T4857] BTRFS info (device loop0): forced readonly [ 69.479527][ T4857] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2452: errno=-28 No space left [ 69.481403][ T4857] BTRFS: error (device loop0) in add_block_group_free_space:1315: errno=-28 No space left [ 69.483619][ T4857] BTRFS info (device loop0): balance: ended with status: -30 [ 69.621398][ T4879] loop0: detected capacity change from 0 to 32768 [ 69.622782][ T2064] ieee802154 phy0 wpan0: encryption failed: -22 [ 69.623793][ T2064] ieee802154 phy1 wpan1: encryption failed: -22 [ 69.624815][ T1540] cfg80211: failed to load regulatory.db [ 69.736381][ T4879] BTRFS: device fsid 395ef67a-297e-477c-816d-cd80a5b93e5d devid 1 transid 8 /dev/loop0 scanned by syz.0.23 (4879) [ 69.739624][ T4879] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 69.741125][ T4879] BTRFS info (device loop0): using free space tree [ 69.752095][ T4879] BTRFS info (device loop0): has skinny extents [ 69.853327][ T4879] BTRFS info (device loop0): enabling ssd optimizations [ 69.862426][ T4879] BTRFS info (device loop0): balance: start -s [ 69.863809][ T4879] ------------[ cut here ]------------ [ 69.864877][ T4879] WARNING: CPU: 1 PID: 4879 at fs/btrfs/block-group.c:2441 btrfs_create_pending_block_groups+0xa8c/0xd1c [ 69.866541][ T4879] Modules linked in: [ 69.867132][ T4879] CPU: 1 PID: 4879 Comm: syz.0.23 Tainted: G W syzkaller #0 [ 69.868485][ T4879] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 69.870038][ T4879] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 69.871260][ T4879] pc : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 69.872388][ T4879] lr : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 69.873546][ T4879] sp : ffff800020707560 [ 69.874344][ T4879] x29: ffff800020707720 x28: dfff800000000000 x27: ffff0000dea9d6e0 [ 69.875758][ T4879] x26: 1fffe0001a9bc00b x25: ffff0000d4de0058 x24: 1fffe0001a9bc00a [ 69.877149][ T4879] x23: ffff0000d4de0050 x22: 00000000ffffffe4 x21: ffff0000d4de01b0 [ 69.878582][ T4879] x20: ffff0000da5219d0 x19: 0000000000000000 x18: 0000000000000000 [ 69.879955][ T4879] x17: 0000000000000000 x16: ffff80001135f958 x15: 0000000000000000 [ 69.881410][ T4879] x14: 0000000000000001 x13: 1fffe000341d09ab x12: 0000000000000000 [ 69.882822][ T4879] x11: ff80800008300a38 x10: 0000000000000000 x9 : 5dbfa9cbce079d00 [ 69.884241][ T4879] x8 : 5dbfa9cbce079d00 x7 : 0000000000000001 x6 : 0000000000000001 [ 69.885689][ T4879] x5 : ffff800020706e78 x4 : ffff80001447f520 x3 : ffff80000850fcd0 [ 69.887210][ T4879] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 69.888578][ T4879] Call trace: [ 69.889113][ T4879] btrfs_create_pending_block_groups+0xa8c/0xd1c [ 69.890282][ T4879] __btrfs_end_transaction+0x148/0x5fc [ 69.891167][ T4879] btrfs_end_transaction+0x24/0x34 [ 69.892044][ T4879] btrfs_inc_block_group_ro+0x4f0/0x568 [ 69.892967][ T4879] btrfs_relocate_block_group+0x2c8/0x89c [ 69.893950][ T4879] btrfs_relocate_chunk+0xb8/0x284 [ 69.894836][ T4879] __btrfs_balance+0x1214/0x1c44 [ 69.895787][ T4879] btrfs_balance+0xad0/0x10f8 [ 69.896644][ T4879] btrfs_ioctl_balance+0x4d4/0x660 [ 69.897568][ T4879] btrfs_ioctl+0x20c/0xa8c [ 69.898369][ T4879] __arm64_sys_ioctl+0x14c/0x1c8 [ 69.899263][ T4879] invoke_syscall+0x98/0x28c [ 69.900042][ T4879] el0_svc_common+0x13c/0x258 [ 69.900857][ T4879] do_el0_svc+0x5c/0x140 [ 69.901642][ T4879] el0_svc+0x78/0x1d0 [ 69.902327][ T4879] el0t_64_sync_handler+0xcc/0xe4 [ 69.903223][ T4879] el0t_64_sync+0x1a0/0x1a4 [ 69.904013][ T4879] irq event stamp: 79460 [ 69.904758][ T4879] hardirqs last enabled at (79459): [] __up_console_sem+0xb4/0xfc [ 69.906492][ T4879] hardirqs last disabled at (79460): [] el1_dbg+0x24/0x80 [ 69.907991][ T4879] softirqs last enabled at (79328): [] local_bh_enable+0x10/0x34 [ 69.909740][ T4879] softirqs last disabled at (79326): [] local_bh_disable+0x10/0x34 [ 69.911544][ T4879] ---[ end trace a5c2d28934b2c9d5 ]--- [ 69.931978][ T4879] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2441: errno=-28 No space left [ 69.933751][ T4879] BTRFS info (device loop0): forced readonly [ 69.934891][ T4879] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2452: errno=-28 No space left [ 69.936755][ T4879] BTRFS: error (device loop0) in add_block_group_free_space:1315: errno=-28 No space left [ 69.938414][ T4879] BTRFS info (device loop0): balance: ended with status: -30 [ 70.108417][ T4902] loop0: detected capacity change from 0 to 32768 [ 70.144516][ T4902] BTRFS: device fsid 395ef67a-297e-477c-816d-cd80a5b93e5d devid 1 transid 8 /dev/loop0 scanned by syz.0.24 (4902) [ 70.147741][ T4902] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 70.149216][ T4902] BTRFS info (device loop0): using free space tree [ 70.150363][ T4902] BTRFS info (device loop0): has skinny extents [ 70.166998][ T4902] BTRFS info (device loop0): enabling ssd optimizations [ 70.172239][ T4902] BTRFS info (device loop0): balance: start -s [ 70.173666][ T4902] ------------[ cut here ]------------ [ 70.174771][ T4902] WARNING: CPU: 0 PID: 4902 at fs/btrfs/block-group.c:2441 btrfs_create_pending_block_groups+0xa8c/0xd1c [ 70.176635][ T4902] Modules linked in: [ 70.177337][ T4902] CPU: 0 PID: 4902 Comm: syz.0.24 Tainted: G W syzkaller #0 [ 70.178943][ T4902] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 70.180711][ T4902] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 70.182097][ T4902] pc : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 70.183480][ T4902] lr : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 70.184619][ T4902] sp : ffff8000205d7560 [ 70.185354][ T4902] x29: ffff8000205d7720 x28: dfff800000000000 x27: ffff0000dea37420 [ 70.186791][ T4902] x26: 1fffe0001dc2d20b x25: ffff0000ee169058 x24: 1fffe0001dc2d20a [ 70.188274][ T4902] x23: ffff0000ee169050 x22: 00000000ffffffe4 x21: ffff0000ee1691b0 [ 70.189731][ T4902] x20: ffff0000c1dd19d0 x19: 0000000000000000 x18: 0000000000000000 [ 70.191257][ T4902] x17: 0000000000000000 x16: ffff80001135f958 x15: 0000000000000000 [ 70.192745][ T4902] x14: 0000000000000001 x13: 1fffe000341cc7ab x12: 0000000000000000 [ 70.194222][ T4902] x11: ff80800008300a38 x10: 0000000000000000 x9 : 7c1bc9fd61b5f700 [ 70.195666][ T4902] x8 : 7c1bc9fd61b5f700 x7 : 0000000000000001 x6 : 0000000000000001 [ 70.197096][ T4902] x5 : ffff8000205d6e78 x4 : ffff80001447f520 x3 : ffff80000850fcd0 [ 70.198534][ T4902] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 70.200037][ T4902] Call trace: [ 70.200617][ T4902] btrfs_create_pending_block_groups+0xa8c/0xd1c [ 70.201730][ T4902] __btrfs_end_transaction+0x148/0x5fc [ 70.202699][ T4902] btrfs_end_transaction+0x24/0x34 [ 70.203601][ T4902] btrfs_inc_block_group_ro+0x4f0/0x568 [ 70.204519][ T4902] btrfs_relocate_block_group+0x2c8/0x89c [ 70.205457][ T4902] btrfs_relocate_chunk+0xb8/0x284 [ 70.206371][ T4902] __btrfs_balance+0x1214/0x1c44 [ 70.207192][ T4902] btrfs_balance+0xad0/0x10f8 [ 70.208018][ T4902] btrfs_ioctl_balance+0x4d4/0x660 [ 70.208918][ T4902] btrfs_ioctl+0x20c/0xa8c [ 70.209697][ T4902] __arm64_sys_ioctl+0x14c/0x1c8 [ 70.210571][ T4902] invoke_syscall+0x98/0x28c [ 70.211422][ T4902] el0_svc_common+0x13c/0x258 [ 70.212306][ T4902] do_el0_svc+0x5c/0x140 [ 70.213085][ T4902] el0_svc+0x78/0x1d0 [ 70.213792][ T4902] el0t_64_sync_handler+0xcc/0xe4 [ 70.214684][ T4902] el0t_64_sync+0x1a0/0x1a4 [ 70.215471][ T4902] irq event stamp: 79704 [ 70.216234][ T4902] hardirqs last enabled at (79703): [] __up_console_sem+0xb4/0xfc [ 70.217965][ T4902] hardirqs last disabled at (79704): [] el1_dbg+0x24/0x80 [ 70.219456][ T4902] softirqs last enabled at (79582): [] local_bh_enable+0x10/0x34 [ 70.221119][ T4902] softirqs last disabled at (79580): [] local_bh_disable+0x10/0x34 [ 70.222691][ T4902] ---[ end trace a5c2d28934b2c9d6 ]--- [ 70.225140][ T4902] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2441: errno=-28 No space left [ 70.227169][ T4902] BTRFS info (device loop0): forced readonly [ 70.228403][ T4902] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2452: errno=-28 No space left [ 70.230150][ T4902] BTRFS: error (device loop0) in add_block_group_free_space:1315: errno=-28 No space left [ 70.232208][ T4902] BTRFS info (device loop0): balance: ended with status: -30 [ 70.368369][ T4924] loop0: detected capacity change from 0 to 32768 [ 70.375971][ T4924] BTRFS: device fsid 395ef67a-297e-477c-816d-cd80a5b93e5d devid 1 transid 8 /dev/loop0 scanned by syz.0.25 (4924) [ 70.380712][ T4924] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 70.382363][ T4924] BTRFS info (device loop0): using free space tree [ 70.383597][ T4924] BTRFS info (device loop0): has skinny extents [ 70.390976][ T4924] BTRFS info (device loop0): enabling ssd optimizations [ 70.395704][ T4924] BTRFS info (device loop0): balance: start -s [ 70.397029][ T4924] ------------[ cut here ]------------ [ 70.398026][ T4924] WARNING: CPU: 1 PID: 4924 at fs/btrfs/block-group.c:2441 btrfs_create_pending_block_groups+0xa8c/0xd1c [ 70.400009][ T4924] Modules linked in: [ 70.400681][ T4924] CPU: 1 PID: 4924 Comm: syz.0.25 Tainted: G W syzkaller #0 [ 70.402198][ T4924] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 70.403994][ T4924] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 70.405348][ T4924] pc : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 70.406513][ T4924] lr : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 70.407657][ T4924] sp : ffff800020997560 [ 70.408381][ T4924] x29: ffff800020997720 x28: dfff800000000000 x27: ffff0000dea9d840 [ 70.409884][ T4924] x26: 1fffe0001ab1970b x25: ffff0000d58cb858 x24: 1fffe0001ab1970a [ 70.411345][ T4924] x23: ffff0000d58cb850 x22: 00000000ffffffe4 x21: ffff0000d58cb9b0 [ 70.412738][ T4924] x20: ffff0000d6f5d9d0 x19: 0000000000000000 x18: 0000000000000000 [ 70.414133][ T4924] x17: 0000000000000000 x16: ffff80001135f958 x15: 0000000000000000 [ 70.415602][ T4924] x14: 0000000000000001 x13: 1fffe000341d09ab x12: 0000000000000000 [ 70.417008][ T4924] x11: ff80800008300a38 x10: 0000000000000000 x9 : c4b3954210e47000 [ 70.418401][ T4924] x8 : c4b3954210e47000 x7 : 0000000000000001 x6 : 0000000000000001 [ 70.419793][ T4924] x5 : ffff800020996e78 x4 : ffff80001447f520 x3 : ffff80000850fcd0 [ 70.421133][ T4924] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 70.422455][ T4924] Call trace: [ 70.423029][ T4924] btrfs_create_pending_block_groups+0xa8c/0xd1c [ 70.424102][ T4924] __btrfs_end_transaction+0x148/0x5fc [ 70.425048][ T4924] btrfs_end_transaction+0x24/0x34 [ 70.425943][ T4924] btrfs_inc_block_group_ro+0x4f0/0x568 [ 70.426872][ T4924] btrfs_relocate_block_group+0x2c8/0x89c [ 70.427798][ T4924] btrfs_relocate_chunk+0xb8/0x284 [ 70.428674][ T4924] __btrfs_balance+0x1214/0x1c44 [ 70.429543][ T4924] btrfs_balance+0xad0/0x10f8 [ 70.430339][ T4924] btrfs_ioctl_balance+0x4d4/0x660 [ 70.431247][ T4924] btrfs_ioctl+0x20c/0xa8c [ 70.432058][ T4924] __arm64_sys_ioctl+0x14c/0x1c8 [ 70.432939][ T4924] invoke_syscall+0x98/0x28c [ 70.433740][ T4924] el0_svc_common+0x13c/0x258 [ 70.434540][ T4924] do_el0_svc+0x5c/0x140 [ 70.435273][ T4924] el0_svc+0x78/0x1d0 [ 70.435987][ T4924] el0t_64_sync_handler+0xcc/0xe4 [ 70.436883][ T4924] el0t_64_sync+0x1a0/0x1a4 [ 70.437691][ T4924] irq event stamp: 79998 [ 70.438391][ T4924] hardirqs last enabled at (79997): [] __up_console_sem+0xb4/0xfc [ 70.440258][ T4924] hardirqs last disabled at (79998): [] el1_dbg+0x24/0x80 [ 70.441893][ T4924] softirqs last enabled at (79868): [] local_bh_enable+0x10/0x34 [ 70.443678][ T4924] softirqs last disabled at (79866): [] local_bh_disable+0x10/0x34 [ 70.445451][ T4924] ---[ end trace a5c2d28934b2c9d7 ]--- [ 70.447428][ T4924] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2441: errno=-28 No space left [ 70.449010][ T4924] BTRFS info (device loop0): forced readonly [ 70.449934][ T4924] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2452: errno=-28 No space left [ 70.452085][ T4924] BTRFS: error (device loop0) in add_block_group_free_space:1315: errno=-28 No space left [ 70.453893][ T4924] BTRFS info (device loop0): balance: ended with status: -30 [ 70.646004][ T4946] BTRFS: device fsid 395ef67a-297e-477c-816d-cd80a5b93e5d devid 1 transid 8 /dev/loop0 scanned by syz.0.26 (4946) [ 70.651156][ T4946] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 70.652720][ T4946] BTRFS info (device loop0): using free space tree [ 70.653853][ T4946] BTRFS info (device loop0): has skinny extents [ 70.661251][ T4946] BTRFS info (device loop0): enabling ssd optimizations [ 70.666570][ T4946] BTRFS info (device loop0): balance: start -s [ 70.667942][ T4946] ------------[ cut here ]------------ [ 70.668957][ T4946] WARNING: CPU: 1 PID: 4946 at fs/btrfs/block-group.c:2441 btrfs_create_pending_block_groups+0xa8c/0xd1c [ 70.670873][ T4946] Modules linked in: [ 70.671535][ T4946] CPU: 1 PID: 4946 Comm: syz.0.26 Tainted: G W syzkaller #0 [ 70.672985][ T4946] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 70.674750][ T4946] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 70.676118][ T4946] pc : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 70.677301][ T4946] lr : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 70.678455][ T4946] sp : ffff800020997560 [ 70.679126][ T4946] x29: ffff800020997720 x28: dfff800000000000 x27: ffff0000dea9d9a0 [ 70.680541][ T4946] x26: 1fffe0001ac2360b x25: ffff0000d611b058 x24: 1fffe0001ac2360a [ 70.681930][ T4946] x23: ffff0000d611b050 x22: 00000000ffffffe4 x21: ffff0000d611b1b0 [ 70.683393][ T4946] x20: ffff0000c1dd19d0 x19: 0000000000000000 x18: 0000000000000000 [ 70.684688][ T4946] x17: 0000000000000000 x16: ffff80001135f958 x15: 0000000000000000 [ 70.686114][ T4946] x14: 0000000000000001 x13: 1fffe000341d09ab x12: 0000000000000000 [ 70.687531][ T4946] x11: ff80800008300a38 x10: 0000000000000000 x9 : 0a661e69cb1fea00 [ 70.688946][ T4946] x8 : 0a661e69cb1fea00 x7 : 0000000000000001 x6 : 0000000000000001 [ 70.690421][ T4946] x5 : ffff800020996e78 x4 : ffff80001447f520 x3 : ffff80000850fcd0 [ 70.691855][ T4946] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 70.693226][ T4946] Call trace: [ 70.693787][ T4946] btrfs_create_pending_block_groups+0xa8c/0xd1c [ 70.694901][ T4946] __btrfs_end_transaction+0x148/0x5fc [ 70.695811][ T4946] btrfs_end_transaction+0x24/0x34 [ 70.696708][ T4946] btrfs_inc_block_group_ro+0x4f0/0x568 [ 70.697680][ T4946] btrfs_relocate_block_group+0x2c8/0x89c [ 70.698907][ T4946] btrfs_relocate_chunk+0xb8/0x284 [ 70.699854][ T4946] __btrfs_balance+0x1214/0x1c44 [ 70.700751][ T4946] btrfs_balance+0xad0/0x10f8 [ 70.701683][ T4946] btrfs_ioctl_balance+0x4d4/0x660 [ 70.702677][ T4946] btrfs_ioctl+0x20c/0xa8c [ 70.703537][ T4946] __arm64_sys_ioctl+0x14c/0x1c8 [ 70.704522][ T4946] invoke_syscall+0x98/0x28c [ 70.705468][ T4946] el0_svc_common+0x13c/0x258 [ 70.706401][ T4946] do_el0_svc+0x5c/0x140 [ 70.707236][ T4946] el0_svc+0x78/0x1d0 [ 70.707995][ T4946] el0t_64_sync_handler+0xcc/0xe4 [ 70.708932][ T4946] el0t_64_sync+0x1a0/0x1a4 [ 70.709774][ T4946] irq event stamp: 79648 [ 70.710590][ T4946] hardirqs last enabled at (79647): [] __up_console_sem+0xb4/0xfc [ 70.712469][ T4946] hardirqs last disabled at (79648): [] el1_dbg+0x24/0x80 [ 70.714098][ T4946] softirqs last enabled at (79484): [] local_bh_enable+0x10/0x34 [ 70.715764][ T4946] softirqs last disabled at (79482): [] local_bh_disable+0x10/0x34 [ 70.717430][ T4946] ---[ end trace a5c2d28934b2c9d8 ]--- [ 70.719413][ T4946] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2441: errno=-28 No space left [ 70.721606][ T4946] BTRFS info (device loop0): forced readonly [ 70.722731][ T4946] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2452: errno=-28 No space left [ 70.724579][ T4946] BTRFS: error (device loop0) in add_block_group_free_space:1315: errno=-28 No space left [ 70.726478][ T4946] BTRFS info (device loop0): balance: ended with status: -30 [ 70.876147][ T4968] BTRFS: device fsid 395ef67a-297e-477c-816d-cd80a5b93e5d devid 1 transid 8 /dev/loop0 scanned by syz.0.27 (4968) [ 70.881077][ T4968] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 70.882779][ T4968] BTRFS info (device loop0): using free space tree [ 70.884076][ T4968] BTRFS info (device loop0): has skinny extents [ 70.891110][ T4968] BTRFS info (device loop0): enabling ssd optimizations [ 70.895663][ T4968] BTRFS info (device loop0): balance: start -s [ 70.897092][ T4968] ------------[ cut here ]------------ [ 70.898109][ T4968] WARNING: CPU: 1 PID: 4968 at fs/btrfs/block-group.c:2441 btrfs_create_pending_block_groups+0xa8c/0xd1c [ 70.899961][ T4968] Modules linked in: [ 70.900667][ T4968] CPU: 1 PID: 4968 Comm: syz.0.27 Tainted: G W syzkaller #0 [ 70.902115][ T4968] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 70.903939][ T4968] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 70.905293][ T4968] pc : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 70.906468][ T4968] lr : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 70.907627][ T4968] sp : ffff800020ac7560 [ 70.908470][ T4968] x29: ffff800020ac7720 x28: dfff800000000000 x27: ffff0000dea9db00 [ 70.910098][ T4968] x26: 1fffe0001a94010b x25: ffff0000d4a00858 x24: 1fffe0001a94010a [ 70.911647][ T4968] x23: ffff0000d4a00850 x22: 00000000ffffffe4 x21: ffff0000d4a009b0 [ 70.913055][ T4968] x20: ffff0000ce1ed9d0 x19: 0000000000000000 x18: 0000000000000000 [ 70.914586][ T4968] x17: 0000000000000000 x16: ffff80001135f958 x15: 0000000000000000 [ 70.915937][ T4968] x14: 0000000000000001 x13: 1fffe000341d09ab x12: 0000000000000000 [ 70.917293][ T4968] x11: ff80800008300a38 x10: 0000000000000000 x9 : bb6c0f00d1b35d00 [ 70.918760][ T4968] x8 : bb6c0f00d1b35d00 x7 : 0000000000000001 x6 : 0000000000000001 [ 70.920196][ T4968] x5 : ffff800020ac6e78 x4 : ffff80001447f520 x3 : ffff80000850fcd0 [ 70.921599][ T4968] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 70.922980][ T4968] Call trace: [ 70.923520][ T4968] btrfs_create_pending_block_groups+0xa8c/0xd1c [ 70.924588][ T4968] __btrfs_end_transaction+0x148/0x5fc [ 70.925546][ T4968] btrfs_end_transaction+0x24/0x34 [ 70.926415][ T4968] btrfs_inc_block_group_ro+0x4f0/0x568 [ 70.927414][ T4968] btrfs_relocate_block_group+0x2c8/0x89c [ 70.928406][ T4968] btrfs_relocate_chunk+0xb8/0x284 [ 70.929296][ T4968] __btrfs_balance+0x1214/0x1c44 [ 70.930192][ T4968] btrfs_balance+0xad0/0x10f8 [ 70.931018][ T4968] btrfs_ioctl_balance+0x4d4/0x660 [ 70.931938][ T4968] btrfs_ioctl+0x20c/0xa8c [ 70.932698][ T4968] __arm64_sys_ioctl+0x14c/0x1c8 [ 70.933613][ T4968] invoke_syscall+0x98/0x28c [ 70.934446][ T4968] el0_svc_common+0x13c/0x258 [ 70.935263][ T4968] do_el0_svc+0x5c/0x140 [ 70.936057][ T4968] el0_svc+0x78/0x1d0 [ 70.936753][ T4968] el0t_64_sync_handler+0xcc/0xe4 [ 70.937642][ T4968] el0t_64_sync+0x1a0/0x1a4 [ 70.938489][ T4968] irq event stamp: 79530 [ 70.939187][ T4968] hardirqs last enabled at (79529): [] __up_console_sem+0xb4/0xfc [ 70.940834][ T4968] hardirqs last disabled at (79530): [] el1_dbg+0x24/0x80 [ 70.942317][ T4968] softirqs last enabled at (79366): [] local_bh_enable+0x10/0x34 [ 70.943945][ T4968] softirqs last disabled at (79364): [] local_bh_disable+0x10/0x34 [ 70.945574][ T4968] ---[ end trace a5c2d28934b2c9d9 ]--- [ 70.947565][ T4968] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2441: errno=-28 No space left [ 70.949453][ T4968] BTRFS info (device loop0): forced readonly [ 70.950531][ T4968] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2452: errno=-28 No space left [ 70.952826][ T4968] BTRFS: error (device loop0) in add_block_group_free_space:1315: errno=-28 No space left [ 70.955498][ T4968] BTRFS info (device loop0): balance: ended with status: -30 [ 71.166421][ T4991] BTRFS: device fsid 395ef67a-297e-477c-816d-cd80a5b93e5d devid 1 transid 8 /dev/loop0 scanned by syz.0.28 (4991) [ 71.171125][ T391] device hsr_slave_0 left promiscuous mode [ 71.211880][ T391] device hsr_slave_1 left promiscuous mode [ 71.213173][ T4991] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 71.214571][ T4991] BTRFS info (device loop0): using free space tree [ 71.215694][ T4991] BTRFS info (device loop0): has skinny extents [ 71.238089][ T4991] BTRFS info (device loop0): enabling ssd optimizations [ 71.244300][ T4991] BTRFS info (device loop0): balance: start -s [ 71.245746][ T4991] ------------[ cut here ]------------ [ 71.246802][ T4991] WARNING: CPU: 1 PID: 4991 at fs/btrfs/block-group.c:2441 btrfs_create_pending_block_groups+0xa8c/0xd1c [ 71.248661][ T4991] Modules linked in: [ 71.249429][ T4991] CPU: 1 PID: 4991 Comm: syz.0.28 Tainted: G W syzkaller #0 [ 71.250843][ T4991] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 71.252531][ T4991] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 71.253891][ T4991] pc : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 71.255022][ T4991] lr : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 71.256338][ T4991] sp : ffff800020cf7560 [ 71.257116][ T4991] x29: ffff800020cf7720 x28: dfff800000000000 x27: ffff0000dea9dbb0 [ 71.258780][ T4991] x26: 1fffe0001b01d70b x25: ffff0000d80eb858 x24: 1fffe0001b01d70a [ 71.260358][ T4991] x23: ffff0000d80eb850 x22: 00000000ffffffe4 x21: ffff0000d80eb9b0 [ 71.261837][ T4991] x20: ffff0000c8db99d0 x19: 0000000000000000 x18: 0000000000000000 [ 71.263494][ T4991] x17: 0000000000000000 x16: ffff80001135f958 x15: 0000000000000000 [ 71.265094][ T4991] x14: 0000000000000001 x13: 1fffe000341d09ab x12: 0000000000000000 [ 71.266735][ T4991] x11: ff80800008300a38 x10: 0000000000000000 x9 : ad971d4968d97400 [ 71.268383][ T4991] x8 : ad971d4968d97400 x7 : 0000000000000001 x6 : 0000000000000001 [ 71.269837][ T4991] x5 : ffff800020cf6e78 x4 : ffff80001447f520 x3 : ffff80000850fcd0 [ 71.271285][ T4991] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 71.272751][ T4991] Call trace: [ 71.273445][ T4991] btrfs_create_pending_block_groups+0xa8c/0xd1c [ 71.274686][ T4991] __btrfs_end_transaction+0x148/0x5fc [ 71.275726][ T4991] btrfs_end_transaction+0x24/0x34 [ 71.276633][ T4991] btrfs_inc_block_group_ro+0x4f0/0x568 [ 71.277648][ T4991] btrfs_relocate_block_group+0x2c8/0x89c [ 71.278712][ T4991] btrfs_relocate_chunk+0xb8/0x284 [ 71.279645][ T4991] __btrfs_balance+0x1214/0x1c44 [ 71.280491][ T4991] btrfs_balance+0xad0/0x10f8 [ 71.281348][ T4991] btrfs_ioctl_balance+0x4d4/0x660 [ 71.282255][ T4991] btrfs_ioctl+0x20c/0xa8c [ 71.283070][ T4991] __arm64_sys_ioctl+0x14c/0x1c8 [ 71.283927][ T4991] invoke_syscall+0x98/0x28c [ 71.284717][ T4991] el0_svc_common+0x13c/0x258 [ 71.285517][ T4991] do_el0_svc+0x5c/0x140 [ 71.286259][ T4991] el0_svc+0x78/0x1d0 [ 71.286946][ T4991] el0t_64_sync_handler+0xcc/0xe4 [ 71.287903][ T4991] el0t_64_sync+0x1a0/0x1a4 [ 71.288673][ T4991] irq event stamp: 79666 [ 71.289417][ T4991] hardirqs last enabled at (79665): [] __up_console_sem+0xb4/0xfc [ 71.291168][ T4991] hardirqs last disabled at (79666): [] el1_dbg+0x24/0x80 [ 71.292703][ T4991] softirqs last enabled at (79530): [] local_bh_enable+0x10/0x34 [ 71.294289][ T4991] softirqs last disabled at (79528): [] local_bh_disable+0x10/0x34 [ 71.295958][ T4991] ---[ end trace a5c2d28934b2c9da ]--- [ 71.299186][ T4991] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2441: errno=-28 No space left [ 71.301117][ T4991] BTRFS info (device loop0): forced readonly [ 71.302790][ T4991] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2452: errno=-28 No space left [ 71.304699][ T4991] BTRFS: error (device loop0) in add_block_group_free_space:1315: errno=-28 No space left [ 71.306821][ T4991] BTRFS info (device loop0): balance: ended with status: -30 [ 71.351759][ T391] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 71.353109][ T391] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 71.354981][ T391] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 71.356226][ T391] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 71.357803][ T391] device bridge_slave_1 left promiscuous mode [ 71.359158][ T391] bridge0: port 2(bridge_slave_1) entered disabled state [ 71.382358][ T391] device bridge_slave_0 left promiscuous mode [ 71.383501][ T391] bridge0: port 1(bridge_slave_0) entered disabled state [ 71.501582][ T391] device veth1_macvtap left promiscuous mode [ 71.502644][ T391] device veth0_macvtap left promiscuous mode [ 71.503768][ T391] device veth1_vlan left promiscuous mode [ 71.504747][ T391] device veth0_vlan left promiscuous mode [ 71.526870][ T5013] BTRFS: device fsid 395ef67a-297e-477c-816d-cd80a5b93e5d devid 1 transid 8 /dev/loop0 scanned by syz.0.29 (5013) [ 71.534499][ T5013] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 71.536033][ T5013] BTRFS info (device loop0): using free space tree [ 71.537016][ T5013] BTRFS info (device loop0): has skinny extents [ 71.583104][ T5013] BTRFS info (device loop0): enabling ssd optimizations [ 71.593098][ T5013] BTRFS info (device loop0): balance: start -s [ 71.594428][ T5013] ------------[ cut here ]------------ [ 71.595493][ T5013] WARNING: CPU: 0 PID: 5013 at fs/btrfs/block-group.c:2441 btrfs_create_pending_block_groups+0xa8c/0xd1c [ 71.597329][ T5013] Modules linked in: [ 71.597993][ T5013] CPU: 0 PID: 5013 Comm: syz.0.29 Tainted: G W syzkaller #0 [ 71.599328][ T5013] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 71.601114][ T5013] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 71.602502][ T5013] pc : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 71.603737][ T5013] lr : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 71.604928][ T5013] sp : ffff8000212d7560 [ 71.605620][ T5013] x29: ffff8000212d7720 x28: dfff800000000000 x27: ffff0000dea37580 [ 71.607054][ T5013] x26: 1fffe00019b1270b x25: ffff0000cd893858 x24: 1fffe00019b1270a [ 71.608512][ T5013] x23: ffff0000cd893850 x22: 00000000ffffffe4 x21: ffff0000cd8939b0 [ 71.609910][ T5013] x20: ffff0000c5dc19d0 x19: 0000000000000000 x18: 0000000000000000 [ 71.611298][ T5013] x17: 0000000000000000 x16: ffff80001135f958 x15: 0000000000000000 [ 71.612787][ T5013] x14: 0000000000000001 x13: 1fffe000341cc7ab x12: 0000000000000000 [ 71.614183][ T5013] x11: ff80800008300a38 x10: 0000000000000000 x9 : 7bc4c1eaf7aec500 [ 71.615654][ T5013] x8 : 7bc4c1eaf7aec500 x7 : 0000000000000001 x6 : 0000000000000001 [ 71.617149][ T5013] x5 : ffff8000212d6e78 x4 : ffff80001447f520 x3 : ffff80000850fcd0 [ 71.618533][ T5013] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 71.619879][ T5013] Call trace: [ 71.620424][ T5013] btrfs_create_pending_block_groups+0xa8c/0xd1c [ 71.621560][ T5013] __btrfs_end_transaction+0x148/0x5fc [ 71.622521][ T5013] btrfs_end_transaction+0x24/0x34 [ 71.623450][ T5013] btrfs_inc_block_group_ro+0x4f0/0x568 [ 71.624439][ T5013] btrfs_relocate_block_group+0x2c8/0x89c [ 71.625475][ T5013] btrfs_relocate_chunk+0xb8/0x284 [ 71.626380][ T5013] __btrfs_balance+0x1214/0x1c44 [ 71.627246][ T5013] btrfs_balance+0xad0/0x10f8 [ 71.628042][ T5013] btrfs_ioctl_balance+0x4d4/0x660 [ 71.628929][ T5013] btrfs_ioctl+0x20c/0xa8c [ 71.629705][ T5013] __arm64_sys_ioctl+0x14c/0x1c8 [ 71.630564][ T5013] invoke_syscall+0x98/0x28c [ 71.631351][ T5013] el0_svc_common+0x13c/0x258 [ 71.632121][ T5013] do_el0_svc+0x5c/0x140 [ 71.632868][ T5013] el0_svc+0x78/0x1d0 [ 71.633588][ T5013] el0t_64_sync_handler+0xcc/0xe4 [ 71.634548][ T5013] el0t_64_sync+0x1a0/0x1a4 [ 71.635367][ T5013] irq event stamp: 79334 [ 71.636066][ T5013] hardirqs last enabled at (79333): [] __up_console_sem+0xb4/0xfc [ 71.637686][ T5013] hardirqs last disabled at (79334): [] el1_dbg+0x24/0x80 [ 71.639243][ T5013] softirqs last enabled at (79206): [] local_bh_enable+0x10/0x34 [ 71.640850][ T5013] softirqs last disabled at (79204): [] local_bh_disable+0x10/0x34 [ 71.642438][ T5013] ---[ end trace a5c2d28934b2c9db ]--- [ 71.646487][ T5013] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2441: errno=-28 No space left [ 71.648292][ T5013] BTRFS info (device loop0): forced readonly [ 71.649249][ T5013] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2452: errno=-28 No space left [ 71.651197][ T5013] BTRFS: error (device loop0) in add_block_group_free_space:1315: errno=-28 No space left [ 71.653733][ T5013] BTRFS info (device loop0): balance: ended with status: -30 [ 71.703554][ T391] team0 (unregistering): Port device team_slave_1 removed [ 71.714753][ T4717] BTRFS: device fsid 395ef67a-297e-477c-816d-cd80a5b93e5d devid 1 transid 9 /dev/loop0 scanned by udevd (4717) [ 71.724458][ T391] team0 (unregistering): Port device team_slave_0 removed [ 71.734363][ T391] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 71.765901][ T391] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 71.884210][ T391] bond0 (unregistering): Released all slaves [ 71.931830][ T5034] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 71.933394][ T5034] BTRFS info (device loop0): using free space tree [ 71.945032][ T5034] ------------[ cut here ]------------ [ 71.946217][ T5034] WARNING: CPU: 1 PID: 5034 at fs/btrfs/block-group.c:2441 btrfs_create_pending_block_groups+0xa8c/0xd1c [ 71.947961][ T5034] Modules linked in: [ 71.948638][ T5034] CPU: 1 PID: 5034 Comm: syz.0.30 Tainted: G W syzkaller #0 [ 71.950074][ T5034] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 71.951749][ T5034] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 71.953118][ T5034] pc : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 71.954305][ T5034] lr : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 71.955483][ T5034] sp : ffff8000212d7560 [ 71.956228][ T5034] x29: ffff8000212d7720 x28: dfff800000000000 x27: ffff0000dea9d210 [ 71.957546][ T5034] x26: 1fffe0001a616b0b x25: ffff0000d30b5858 x24: 1fffe0001a616b0a [ 71.958912][ T5034] x23: ffff0000d30b5850 x22: 00000000ffffffe4 x21: ffff0000d30b59b0 [ 71.960298][ T5034] x20: ffff0000ec6319d0 x19: 0000000000000000 x18: 0000000000000000 [ 71.961741][ T5034] x17: 0000000000000000 x16: ffff80001135f958 x15: 0000000000000000 [ 71.963217][ T5034] x14: 0000000000000001 x13: 1fffe000341d09ab x12: 0000000000000000 [ 71.964689][ T5034] x11: ff80800008300a38 x10: 0000000000000000 x9 : a22884b9676b7d00 [ 71.966233][ T5034] x8 : a22884b9676b7d00 x7 : 0000000000000001 x6 : 0000000000000001 [ 71.967639][ T5034] x5 : ffff8000212d6e78 x4 : ffff80001447f520 x3 : ffff80000850fcd0 [ 71.969051][ T5034] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 71.970415][ T5034] Call trace: [ 71.970980][ T5034] btrfs_create_pending_block_groups+0xa8c/0xd1c [ 71.972109][ T5034] __btrfs_end_transaction+0x148/0x5fc [ 71.973070][ T5034] btrfs_end_transaction+0x24/0x34 [ 71.973931][ T5034] btrfs_inc_block_group_ro+0x4f0/0x568 [ 71.974939][ T5034] btrfs_relocate_block_group+0x2c8/0x89c [ 71.975957][ T5034] btrfs_relocate_chunk+0xb8/0x284 [ 71.976834][ T5034] __btrfs_balance+0x1214/0x1c44 [ 71.977661][ T5034] btrfs_balance+0xad0/0x10f8 [ 71.978397][ T5034] btrfs_ioctl_balance+0x4d4/0x660 [ 71.979335][ T5034] btrfs_ioctl+0x20c/0xa8c [ 71.980093][ T5034] __arm64_sys_ioctl+0x14c/0x1c8 [ 71.980993][ T5034] invoke_syscall+0x98/0x28c [ 71.981758][ T5034] el0_svc_common+0x13c/0x258 [ 71.982562][ T5034] do_el0_svc+0x5c/0x140 [ 71.983275][ T5034] el0_svc+0x78/0x1d0 [ 71.984051][ T5034] el0t_64_sync_handler+0xcc/0xe4 [ 71.985049][ T5034] el0t_64_sync+0x1a0/0x1a4 [ 71.985834][ T5034] irq event stamp: 79156 [ 71.986539][ T5034] hardirqs last enabled at (79155): [] __up_console_sem+0xb4/0xfc [ 71.988163][ T5034] hardirqs last disabled at (79156): [] el1_dbg+0x24/0x80 [ 71.989621][ T5034] softirqs last enabled at (79030): [] local_bh_enable+0x10/0x34 [ 71.991207][ T5034] softirqs last disabled at (79028): [] local_bh_disable+0x10/0x34 [ 71.992890][ T5034] ---[ end trace a5c2d28934b2c9dc ]--- [ 71.995899][ T5034] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2441: errno=-28 No space left [ 71.997677][ T5034] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2452: errno=-28 No space left [ 71.999455][ T5034] BTRFS: error (device loop0) in add_block_group_free_space:1315: errno=-28 No space left [ 72.203444][ T5059] BTRFS: device fsid 395ef67a-297e-477c-816d-cd80a5b93e5d devid 1 transid 8 /dev/loop0 scanned by syz.0.31 (5059) [ 72.226978][ T5059] ------------[ cut here ]------------ [ 72.228118][ T5059] WARNING: CPU: 1 PID: 5059 at fs/btrfs/block-group.c:2441 btrfs_create_pending_block_groups+0xa8c/0xd1c [ 72.230013][ T5059] Modules linked in: [ 72.230645][ T5059] CPU: 1 PID: 5059 Comm: syz.0.31 Tainted: G W syzkaller #0 [ 72.232376][ T5059] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 72.234502][ T5059] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 72.236148][ T5059] pc : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 72.237347][ T5059] lr : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 72.238526][ T5059] sp : ffff800020da7560 [ 72.239252][ T5059] x29: ffff800020da7720 x28: dfff800000000000 x27: ffff0000dea9d0b0 [ 72.240628][ T5059] x26: 1fffe0001aaf220b x25: ffff0000d5791058 x24: 1fffe0001aaf220a [ 72.242101][ T5059] x23: ffff0000d5791050 x22: 00000000ffffffe4 x21: ffff0000d57911b0 [ 72.243497][ T5059] x20: ffff0000ecf6d9d0 x19: 0000000000000000 x18: 0000000000000000 [ 72.244876][ T5059] x17: 0000000000000000 x16: ffff80001135f958 x15: 0000000000000000 [ 72.246226][ T5059] x14: 0000000000000001 x13: 1fffe000341d09ab x12: 0000000000000000 [ 72.247579][ T5059] x11: ff80800008300a38 x10: 0000000000000000 x9 : cef7c53313a56e00 [ 72.249267][ T5059] x8 : cef7c53313a56e00 x7 : 0000000000000001 x6 : 0000000000000001 [ 72.250781][ T5059] x5 : ffff800020da6e78 x4 : ffff80001447f520 x3 : ffff80000850fcd0 [ 72.252135][ T5059] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 72.253566][ T5059] Call trace: [ 72.254108][ T5059] btrfs_create_pending_block_groups+0xa8c/0xd1c [ 72.255169][ T5059] __btrfs_end_transaction+0x148/0x5fc [ 72.256180][ T5059] btrfs_end_transaction+0x24/0x34 [ 72.257051][ T5059] btrfs_inc_block_group_ro+0x4f0/0x568 [ 72.258060][ T5059] btrfs_relocate_block_group+0x2c8/0x89c [ 72.259081][ T5059] btrfs_relocate_chunk+0xb8/0x284 [ 72.260011][ T5059] __btrfs_balance+0x1214/0x1c44 [ 72.260893][ T5059] btrfs_balance+0xad0/0x10f8 [ 72.261718][ T5059] btrfs_ioctl_balance+0x4d4/0x660 [ 72.262621][ T5059] btrfs_ioctl+0x20c/0xa8c [ 72.263411][ T5059] __arm64_sys_ioctl+0x14c/0x1c8 [ 72.264293][ T5059] invoke_syscall+0x98/0x28c [ 72.265105][ T5059] el0_svc_common+0x13c/0x258 [ 72.265932][ T5059] do_el0_svc+0x5c/0x140 [ 72.266679][ T5059] el0_svc+0x78/0x1d0 [ 72.267368][ T5059] el0t_64_sync_handler+0xcc/0xe4 [ 72.268231][ T5059] el0t_64_sync+0x1a0/0x1a4 [ 72.269093][ T5059] irq event stamp: 79020 [ 72.269813][ T5059] hardirqs last enabled at (79019): [] __up_console_sem+0xb4/0xfc [ 72.271491][ T5059] hardirqs last disabled at (79020): [] el1_dbg+0x24/0x80 [ 72.273004][ T5059] softirqs last enabled at (78896): [] local_bh_enable+0x10/0x34 [ 72.274744][ T5059] softirqs last disabled at (78894): [] local_bh_disable+0x10/0x34 [ 72.276587][ T5059] ---[ end trace a5c2d28934b2c9dd ]--- [ 72.279717][ T5059] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2441: errno=-28 No space left [ 72.281658][ T5059] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2452: errno=-28 No space left [ 72.283438][ T5059] BTRFS: error (device loop0) in add_block_group_free_space:1315: errno=-28 No space left 1970/01/01 00:01:12 executed programs: 18 [ 72.420742][ T5081] set_capacity_and_notify: 6 callbacks suppressed [ 72.420751][ T5081] loop0: detected capacity change from 0 to 32768 [ 72.472947][ T5081] BTRFS: device fsid 395ef67a-297e-477c-816d-cd80a5b93e5d devid 1 transid 8 /dev/loop0 scanned by syz.0.32 (5081) [ 72.514023][ T5081] btrfs_printk: 12 callbacks suppressed [ 72.514033][ T5081] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 72.516379][ T5081] BTRFS info (device loop0): using free space tree [ 72.517458][ T5081] BTRFS info (device loop0): has skinny extents [ 72.526427][ T5081] BTRFS info (device loop0): enabling ssd optimizations [ 72.531114][ T5081] BTRFS info (device loop0): balance: start -s [ 72.533081][ T5081] ------------[ cut here ]------------ [ 72.534148][ T5081] WARNING: CPU: 1 PID: 5081 at fs/btrfs/block-group.c:2441 btrfs_create_pending_block_groups+0xa8c/0xd1c [ 72.535992][ T5081] Modules linked in: [ 72.536637][ T5081] CPU: 1 PID: 5081 Comm: syz.0.32 Tainted: G W syzkaller #0 [ 72.537989][ T5081] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 72.539556][ T5081] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 72.540984][ T5081] pc : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 72.542169][ T5081] lr : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 72.543311][ T5081] sp : ffff800021597560 [ 72.544101][ T5081] x29: ffff800021597720 x28: dfff800000000000 x27: ffff0000dea9dd10 [ 72.545511][ T5081] x26: 1fffe00019a6930b x25: ffff0000cd349858 x24: 1fffe00019a6930a [ 72.546999][ T5081] x23: ffff0000cd349850 x22: 00000000ffffffe4 x21: ffff0000cd3499b0 [ 72.548391][ T5081] x20: ffff0000dbb899d0 x19: 0000000000000000 x18: 0000000000000000 [ 72.549857][ T5081] x17: 0000000000000000 x16: ffff80001135f958 x15: 0000000000000000 [ 72.551335][ T5081] x14: 0000000000000001 x13: 1fffe000341d09ab x12: 0000000000000000 [ 72.552780][ T5081] x11: ff80800008300a38 x10: 0000000000000000 x9 : 8418496955062b00 [ 72.554124][ T5081] x8 : 8418496955062b00 x7 : 0000000000000001 x6 : 0000000000000001 [ 72.555480][ T5081] x5 : ffff800021596e78 x4 : ffff80001447f520 x3 : ffff80000850fcd0 [ 72.556893][ T5081] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 72.558419][ T5081] Call trace: [ 72.558975][ T5081] btrfs_create_pending_block_groups+0xa8c/0xd1c [ 72.560104][ T5081] __btrfs_end_transaction+0x148/0x5fc [ 72.561081][ T5081] btrfs_end_transaction+0x24/0x34 [ 72.561998][ T5081] btrfs_inc_block_group_ro+0x4f0/0x568 [ 72.563025][ T5081] btrfs_relocate_block_group+0x2c8/0x89c [ 72.564051][ T5081] btrfs_relocate_chunk+0xb8/0x284 [ 72.565073][ T5081] __btrfs_balance+0x1214/0x1c44 [ 72.566109][ T5081] btrfs_balance+0xad0/0x10f8 [ 72.567021][ T5081] btrfs_ioctl_balance+0x4d4/0x660 [ 72.567948][ T5081] btrfs_ioctl+0x20c/0xa8c [ 72.568854][ T5081] __arm64_sys_ioctl+0x14c/0x1c8 [ 72.569831][ T5081] invoke_syscall+0x98/0x28c [ 72.570722][ T5081] el0_svc_common+0x13c/0x258 [ 72.571628][ T5081] do_el0_svc+0x5c/0x140 [ 72.572356][ T5081] el0_svc+0x78/0x1d0 [ 72.573082][ T5081] el0t_64_sync_handler+0xcc/0xe4 [ 72.573969][ T5081] el0t_64_sync+0x1a0/0x1a4 [ 72.574774][ T5081] irq event stamp: 79570 [ 72.575538][ T5081] hardirqs last enabled at (79569): [] __up_console_sem+0xb4/0xfc [ 72.577162][ T5081] hardirqs last disabled at (79570): [] el1_dbg+0x24/0x80 [ 72.578677][ T5081] softirqs last enabled at (79466): [] handle_softirqs+0xa70/0xc14 [ 72.580312][ T5081] softirqs last disabled at (79421): [] __irq_exit_rcu+0x240/0x434 [ 72.582006][ T5081] ---[ end trace a5c2d28934b2c9de ]--- [ 72.585411][ T5081] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2441: errno=-28 No space left [ 72.587211][ T5081] BTRFS info (device loop0): forced readonly [ 72.588142][ T5081] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2452: errno=-28 No space left [ 72.590113][ T5081] BTRFS: error (device loop0) in add_block_group_free_space:1315: errno=-28 No space left [ 72.592302][ T5081] BTRFS info (device loop0): balance: ended with status: -30 [ 72.728881][ T5103] loop0: detected capacity change from 0 to 32768 [ 72.766031][ T5103] BTRFS: device fsid 395ef67a-297e-477c-816d-cd80a5b93e5d devid 1 transid 8 /dev/loop0 scanned by syz.0.33 (5103) [ 72.773012][ T5103] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 72.774439][ T5103] BTRFS info (device loop0): using free space tree [ 72.775478][ T5103] BTRFS info (device loop0): has skinny extents [ 72.797119][ T5103] BTRFS info (device loop0): enabling ssd optimizations [ 72.804322][ T5103] BTRFS info (device loop0): balance: start -s [ 72.805791][ T5103] ------------[ cut here ]------------ [ 72.806868][ T5103] WARNING: CPU: 1 PID: 5103 at fs/btrfs/block-group.c:2441 btrfs_create_pending_block_groups+0xa8c/0xd1c [ 72.808647][ T5103] Modules linked in: [ 72.809278][ T5103] CPU: 1 PID: 5103 Comm: syz.0.33 Tainted: G W syzkaller #0 [ 72.810712][ T5103] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 72.812248][ T5103] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 72.813700][ T5103] pc : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 72.814893][ T5103] lr : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 72.816061][ T5103] sp : ffff8000215e7560 [ 72.816805][ T5103] x29: ffff8000215e7720 x28: dfff800000000000 x27: ffff0000dea9de70 [ 72.818191][ T5103] x26: 1fffe0001835c20b x25: ffff0000c1ae1058 x24: 1fffe0001835c20a [ 72.819633][ T5103] x23: ffff0000c1ae1050 x22: 00000000ffffffe4 x21: ffff0000c1ae11b0 [ 72.821105][ T5103] x20: ffff0000cf4f59d0 x19: 0000000000000000 x18: 0000000000000000 [ 72.822528][ T5103] x17: 0000000000000000 x16: ffff80001135f958 x15: 0000000000000000 [ 72.823911][ T5103] x14: 0000000000000001 x13: 1fffe000341d09ab x12: 0000000000000000 [ 72.825307][ T5103] x11: ff80800008300a38 x10: 0000000000000000 x9 : 1e122304c1fae200 [ 72.826675][ T5103] x8 : 1e122304c1fae200 x7 : 0000000000000001 x6 : 0000000000000001 [ 72.828022][ T5103] x5 : ffff8000215e6e78 x4 : ffff80001447f520 x3 : ffff80000850fcd0 [ 72.829395][ T5103] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 72.830753][ T5103] Call trace: [ 72.831373][ T5103] btrfs_create_pending_block_groups+0xa8c/0xd1c [ 72.832498][ T5103] __btrfs_end_transaction+0x148/0x5fc [ 72.833428][ T5103] btrfs_end_transaction+0x24/0x34 [ 72.834302][ T5103] btrfs_inc_block_group_ro+0x4f0/0x568 [ 72.835274][ T5103] btrfs_relocate_block_group+0x2c8/0x89c [ 72.836216][ T5103] btrfs_relocate_chunk+0xb8/0x284 [ 72.837122][ T5103] __btrfs_balance+0x1214/0x1c44 [ 72.837967][ T5103] btrfs_balance+0xad0/0x10f8 [ 72.838797][ T5103] btrfs_ioctl_balance+0x4d4/0x660 [ 72.839736][ T5103] btrfs_ioctl+0x20c/0xa8c [ 72.840498][ T5103] __arm64_sys_ioctl+0x14c/0x1c8 [ 72.841318][ T5103] invoke_syscall+0x98/0x28c [ 72.842066][ T5103] el0_svc_common+0x13c/0x258 [ 72.842844][ T5103] do_el0_svc+0x5c/0x140 [ 72.843603][ T5103] el0_svc+0x78/0x1d0 [ 72.844316][ T5103] el0t_64_sync_handler+0xcc/0xe4 [ 72.845212][ T5103] el0t_64_sync+0x1a0/0x1a4 [ 72.846005][ T5103] irq event stamp: 79352 [ 72.846801][ T5103] hardirqs last enabled at (79351): [] __up_console_sem+0xb4/0xfc [ 72.848459][ T5103] hardirqs last disabled at (79352): [] el1_dbg+0x24/0x80 [ 72.849968][ T5103] softirqs last enabled at (79202): [] local_bh_enable+0x10/0x34 [ 72.851622][ T5103] softirqs last disabled at (79200): [] local_bh_disable+0x10/0x34 [ 72.853272][ T5103] ---[ end trace a5c2d28934b2c9df ]--- [ 72.856898][ T5103] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2441: errno=-28 No space left [ 72.858737][ T5103] BTRFS info (device loop0): forced readonly [ 72.859742][ T5103] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2452: errno=-28 No space left [ 72.862003][ T5103] BTRFS: error (device loop0) in add_block_group_free_space:1315: errno=-28 No space left [ 72.863698][ T5103] BTRFS info (device loop0): balance: ended with status: -30 [ 73.029535][ T5125] loop0: detected capacity change from 0 to 32768 [ 73.077050][ T5125] BTRFS: device fsid 395ef67a-297e-477c-816d-cd80a5b93e5d devid 1 transid 8 /dev/loop0 scanned by syz.0.34 (5125) [ 73.080328][ T5125] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 73.081882][ T5125] BTRFS info (device loop0): using free space tree [ 73.083140][ T5125] BTRFS info (device loop0): has skinny extents [ 73.091379][ T5125] BTRFS info (device loop0): enabling ssd optimizations [ 73.100537][ T5125] BTRFS info (device loop0): balance: start -s [ 73.101978][ T5125] ------------[ cut here ]------------ [ 73.103114][ T5125] WARNING: CPU: 1 PID: 5125 at fs/btrfs/block-group.c:2441 btrfs_create_pending_block_groups+0xa8c/0xd1c [ 73.105080][ T5125] Modules linked in: [ 73.105749][ T5125] CPU: 1 PID: 5125 Comm: syz.0.34 Tainted: G W syzkaller #0 [ 73.107259][ T5125] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 73.109035][ T5125] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 73.110443][ T5125] pc : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 73.111648][ T5125] lr : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 73.112771][ T5125] sp : ffff8000215e7560 [ 73.113496][ T5125] x29: ffff8000215e7720 x28: dfff800000000000 x27: ffff0000dea9d580 [ 73.114994][ T5125] x26: 1fffe0001958da0b x25: ffff0000cac6d058 x24: 1fffe0001958da0a [ 73.116399][ T5125] x23: ffff0000cac6d050 x22: 00000000ffffffe4 x21: ffff0000cac6d1b0 [ 73.117958][ T5125] x20: ffff0000db90d9d0 x19: 0000000000000000 x18: 0000000000000000 [ 73.119582][ T5125] x17: 0000000000000000 x16: ffff80001135f958 x15: 0000000000000000 [ 73.121240][ T5125] x14: 0000000000000001 x13: 1fffe000341d09ab x12: 0000000000000000 [ 73.122865][ T5125] x11: ff80800008300a38 x10: 0000000000000000 x9 : 87fc07f84025fe00 [ 73.124318][ T5125] x8 : 87fc07f84025fe00 x7 : 0000000000000001 x6 : 0000000000000001 [ 73.125748][ T5125] x5 : ffff8000215e6e78 x4 : ffff80001447f520 x3 : ffff80000850fcd0 [ 73.127202][ T5125] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 73.128641][ T5125] Call trace: [ 73.129227][ T5125] btrfs_create_pending_block_groups+0xa8c/0xd1c [ 73.130344][ T5125] __btrfs_end_transaction+0x148/0x5fc [ 73.131259][ T5125] btrfs_end_transaction+0x24/0x34 [ 73.132136][ T5125] btrfs_inc_block_group_ro+0x4f0/0x568 [ 73.133088][ T5125] btrfs_relocate_block_group+0x2c8/0x89c [ 73.134084][ T5125] btrfs_relocate_chunk+0xb8/0x284 [ 73.135002][ T5125] __btrfs_balance+0x1214/0x1c44 [ 73.135870][ T5125] btrfs_balance+0xad0/0x10f8 [ 73.136681][ T5125] btrfs_ioctl_balance+0x4d4/0x660 [ 73.137587][ T5125] btrfs_ioctl+0x20c/0xa8c [ 73.138419][ T5125] __arm64_sys_ioctl+0x14c/0x1c8 [ 73.139284][ T5125] invoke_syscall+0x98/0x28c [ 73.140119][ T5125] el0_svc_common+0x13c/0x258 [ 73.140988][ T5125] do_el0_svc+0x5c/0x140 [ 73.141727][ T5125] el0_svc+0x78/0x1d0 [ 73.142464][ T5125] el0t_64_sync_handler+0xcc/0xe4 [ 73.143345][ T5125] el0t_64_sync+0x1a0/0x1a4 [ 73.144105][ T5125] irq event stamp: 79066 [ 73.144837][ T5125] hardirqs last enabled at (79065): [] __up_console_sem+0xb4/0xfc [ 73.146491][ T5125] hardirqs last disabled at (79066): [] el1_dbg+0x24/0x80 [ 73.148010][ T5125] softirqs last enabled at (78970): [] handle_softirqs+0xa70/0xc14 [ 73.149654][ T5125] softirqs last disabled at (78959): [] __irq_exit_rcu+0x240/0x434 [ 73.151246][ T5125] ---[ end trace a5c2d28934b2c9e0 ]--- [ 73.153196][ T5125] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2441: errno=-28 No space left [ 73.155120][ T5125] BTRFS info (device loop0): forced readonly [ 73.156214][ T5125] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2452: errno=-28 No space left [ 73.158026][ T5125] BTRFS: error (device loop0) in add_block_group_free_space:1315: errno=-28 No space left [ 73.159986][ T5125] BTRFS info (device loop0): balance: ended with status: -30 [ 73.332236][ T5147] loop0: detected capacity change from 0 to 32768 [ 73.386511][ T5147] BTRFS: device fsid 395ef67a-297e-477c-816d-cd80a5b93e5d devid 1 transid 8 /dev/loop0 scanned by syz.0.35 (5147) [ 73.389926][ T5147] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 73.391840][ T5147] BTRFS info (device loop0): using free space tree [ 73.392985][ T5147] BTRFS info (device loop0): has skinny extents [ 73.402749][ T5147] BTRFS info (device loop0): enabling ssd optimizations [ 73.407410][ T5147] BTRFS info (device loop0): balance: start -s [ 73.408744][ T5147] ------------[ cut here ]------------ [ 73.409984][ T5147] WARNING: CPU: 1 PID: 5147 at fs/btrfs/block-group.c:2441 btrfs_create_pending_block_groups+0xa8c/0xd1c [ 73.411729][ T5147] Modules linked in: [ 73.412475][ T5147] CPU: 1 PID: 5147 Comm: syz.0.35 Tainted: G W syzkaller #0 [ 73.413840][ T5147] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 73.415554][ T5147] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 73.416920][ T5147] pc : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 73.418104][ T5147] lr : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 73.419218][ T5147] sp : ffff800021867560 [ 73.419916][ T5147] x29: ffff800021867720 x28: dfff800000000000 x27: ffff0000dea9d4d0 [ 73.421296][ T5147] x26: 1fffe00019bc5e0b x25: ffff0000cde2f058 x24: 1fffe00019bc5e0a [ 73.422696][ T5147] x23: ffff0000cde2f050 x22: 00000000ffffffe4 x21: ffff0000cde2f1b0 [ 73.424025][ T5147] x20: ffff0000db90d9d0 x19: 0000000000000000 x18: 0000000000000000 [ 73.425438][ T5147] x17: 0000000000000000 x16: ffff80001135f958 x15: 0000000000000000 [ 73.426835][ T5147] x14: 0000000000000001 x13: 1fffe000341d09ab x12: 0000000000000000 [ 73.428234][ T5147] x11: ff80800008300a38 x10: 0000000000000000 x9 : d11fb510f4d4e800 [ 73.429612][ T5147] x8 : d11fb510f4d4e800 x7 : 0000000000000001 x6 : 0000000000000001 [ 73.431060][ T5147] x5 : ffff800021866e78 x4 : ffff80001447f520 x3 : ffff80000850fcd0 [ 73.432595][ T5147] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 73.434026][ T5147] Call trace: [ 73.434565][ T5147] btrfs_create_pending_block_groups+0xa8c/0xd1c [ 73.435674][ T5147] __btrfs_end_transaction+0x148/0x5fc [ 73.436646][ T5147] btrfs_end_transaction+0x24/0x34 [ 73.437493][ T5147] btrfs_inc_block_group_ro+0x4f0/0x568 [ 73.438483][ T5147] btrfs_relocate_block_group+0x2c8/0x89c [ 73.439499][ T5147] btrfs_relocate_chunk+0xb8/0x284 [ 73.440354][ T5147] __btrfs_balance+0x1214/0x1c44 [ 73.441201][ T5147] btrfs_balance+0xad0/0x10f8 [ 73.442040][ T5147] btrfs_ioctl_balance+0x4d4/0x660 [ 73.442938][ T5147] btrfs_ioctl+0x20c/0xa8c [ 73.443732][ T5147] __arm64_sys_ioctl+0x14c/0x1c8 [ 73.444570][ T5147] invoke_syscall+0x98/0x28c [ 73.445336][ T5147] el0_svc_common+0x13c/0x258 [ 73.446136][ T5147] do_el0_svc+0x5c/0x140 [ 73.446955][ T5147] el0_svc+0x78/0x1d0 [ 73.447636][ T5147] el0t_64_sync_handler+0xcc/0xe4 [ 73.448527][ T5147] el0t_64_sync+0x1a0/0x1a4 [ 73.449269][ T5147] irq event stamp: 78984 [ 73.449985][ T5147] hardirqs last enabled at (78983): [] __up_console_sem+0xb4/0xfc [ 73.451735][ T5147] hardirqs last disabled at (78984): [] el1_dbg+0x24/0x80 [ 73.453318][ T5147] softirqs last enabled at (78860): [] local_bh_enable+0x10/0x34 [ 73.454940][ T5147] softirqs last disabled at (78858): [] local_bh_disable+0x10/0x34 [ 73.456614][ T5147] ---[ end trace a5c2d28934b2c9e1 ]--- [ 73.459900][ T5147] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2441: errno=-28 No space left [ 73.462067][ T5147] BTRFS info (device loop0): forced readonly [ 73.463236][ T5147] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2452: errno=-28 No space left [ 73.465017][ T5147] BTRFS: error (device loop0) in add_block_group_free_space:1315: errno=-28 No space left [ 73.467207][ T5147] BTRFS info (device loop0): balance: ended with status: -30 [ 73.600615][ T5170] loop0: detected capacity change from 0 to 32768 [ 73.604709][ T5170] BTRFS: device fsid 395ef67a-297e-477c-816d-cd80a5b93e5d devid 1 transid 8 /dev/loop0 scanned by syz.0.36 (5170) [ 73.608954][ T5170] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 73.610495][ T5170] BTRFS info (device loop0): using free space tree [ 73.621783][ T5170] BTRFS info (device loop0): has skinny extents [ 73.667265][ T5170] BTRFS info (device loop0): enabling ssd optimizations [ 73.677454][ T5170] BTRFS info (device loop0): balance: start -s [ 73.678922][ T5170] ------------[ cut here ]------------ [ 73.680001][ T5170] WARNING: CPU: 1 PID: 5170 at fs/btrfs/block-group.c:2441 btrfs_create_pending_block_groups+0xa8c/0xd1c [ 73.681900][ T5170] Modules linked in: [ 73.682687][ T5170] CPU: 1 PID: 5170 Comm: syz.0.36 Tainted: G W syzkaller #0 [ 73.684294][ T5170] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 73.686129][ T5170] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 73.687460][ T5170] pc : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 73.688667][ T5170] lr : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 73.689833][ T5170] sp : ffff800021867560 [ 73.690569][ T5170] x29: ffff800021867720 x28: dfff800000000000 x27: ffff0000dea9d370 [ 73.692021][ T5170] x26: 1fffe0001abdb00b x25: ffff0000d5ed8058 x24: 1fffe0001abdb00a [ 73.693421][ T5170] x23: ffff0000d5ed8050 x22: 00000000ffffffe4 x21: ffff0000d5ed81b0 [ 73.694774][ T5170] x20: ffff0000d73959d0 x19: 0000000000000000 x18: 0000000000000000 [ 73.696189][ T5170] x17: 0000000000000000 x16: ffff80001135f958 x15: 0000000000000000 [ 73.697618][ T5170] x14: 0000000000000001 x13: 1fffe000341d09ab x12: 0000000000000000 [ 73.699016][ T5170] x11: ff80800008300a38 x10: 0000000000000000 x9 : 6efbc314b485eb00 [ 73.700418][ T5170] x8 : 6efbc314b485eb00 x7 : 0000000000000001 x6 : 0000000000000001 [ 73.701886][ T5170] x5 : ffff800021866e78 x4 : ffff80001447f520 x3 : ffff80000850fcd0 [ 73.703317][ T5170] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 73.704835][ T5170] Call trace: [ 73.705369][ T5170] btrfs_create_pending_block_groups+0xa8c/0xd1c [ 73.706442][ T5170] __btrfs_end_transaction+0x148/0x5fc [ 73.707505][ T5170] btrfs_end_transaction+0x24/0x34 [ 73.708471][ T5170] btrfs_inc_block_group_ro+0x4f0/0x568 [ 73.709525][ T5170] btrfs_relocate_block_group+0x2c8/0x89c [ 73.710603][ T5170] btrfs_relocate_chunk+0xb8/0x284 [ 73.711466][ T5170] __btrfs_balance+0x1214/0x1c44 [ 73.712363][ T5170] btrfs_balance+0xad0/0x10f8 [ 73.713178][ T5170] btrfs_ioctl_balance+0x4d4/0x660 [ 73.714107][ T5170] btrfs_ioctl+0x20c/0xa8c [ 73.714863][ T5170] __arm64_sys_ioctl+0x14c/0x1c8 [ 73.715748][ T5170] invoke_syscall+0x98/0x28c [ 73.716575][ T5170] el0_svc_common+0x13c/0x258 [ 73.717402][ T5170] do_el0_svc+0x5c/0x140 [ 73.718199][ T5170] el0_svc+0x78/0x1d0 [ 73.718871][ T5170] el0t_64_sync_handler+0xcc/0xe4 [ 73.719779][ T5170] el0t_64_sync+0x1a0/0x1a4 [ 73.720565][ T5170] irq event stamp: 79848 [ 73.721271][ T5170] hardirqs last enabled at (79847): [] __up_console_sem+0xb4/0xfc [ 73.722922][ T5170] hardirqs last disabled at (79848): [] el1_dbg+0x24/0x80 [ 73.724580][ T5170] softirqs last enabled at (79704): [] local_bh_enable+0x10/0x34 [ 73.726163][ T5170] softirqs last disabled at (79702): [] local_bh_disable+0x10/0x34 [ 73.727817][ T5170] ---[ end trace a5c2d28934b2c9e2 ]--- [ 73.730134][ T5170] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2441: errno=-28 No space left [ 73.733082][ T5170] BTRFS info (device loop0): forced readonly [ 73.734374][ T5170] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2452: errno=-28 No space left [ 73.736011][ T5170] BTRFS: error (device loop0) in add_block_group_free_space:1315: errno=-28 No space left [ 73.737789][ T5170] BTRFS info (device loop0): balance: ended with status: -30 [ 73.934538][ T5193] loop0: detected capacity change from 0 to 32768 [ 73.992351][ T5193] BTRFS: device fsid 395ef67a-297e-477c-816d-cd80a5b93e5d devid 1 transid 8 /dev/loop0 scanned by syz.0.37 (5193) [ 74.000825][ T5193] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 74.004232][ T5193] BTRFS info (device loop0): using free space tree [ 74.005339][ T5193] BTRFS info (device loop0): has skinny extents [ 74.044654][ T5193] BTRFS info (device loop0): enabling ssd optimizations [ 74.049579][ T5193] BTRFS info (device loop0): balance: start -s [ 74.051134][ T5193] ------------[ cut here ]------------ [ 74.055321][ T5193] WARNING: CPU: 0 PID: 5193 at fs/btrfs/block-group.c:2441 btrfs_create_pending_block_groups+0xa8c/0xd1c [ 74.057294][ T5193] Modules linked in: [ 74.057988][ T5193] CPU: 0 PID: 5193 Comm: syz.0.37 Tainted: G W syzkaller #0 [ 74.059605][ T5193] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 74.061341][ T5193] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 74.062772][ T5193] pc : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 74.063969][ T5193] lr : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 74.065201][ T5193] sp : ffff800021877560 [ 74.065958][ T5193] x29: ffff800021877720 x28: dfff800000000000 x27: ffff0000dea37210 [ 74.067440][ T5193] x26: 1fffe0001b05210b x25: ffff0000d8290858 x24: 1fffe0001b05210a [ 74.068908][ T5193] x23: ffff0000d8290850 x22: 00000000ffffffe4 x21: ffff0000d82909b0 [ 74.070277][ T5193] x20: ffff0000d0ab59d0 x19: 0000000000000000 x18: 0000000000000000 [ 74.071727][ T5193] x17: 0000000000000000 x16: ffff80001135f958 x15: 0000000000000000 [ 74.073145][ T5193] x14: 0000000000000001 x13: 1fffe000341cc7ab x12: 0000000000000000 [ 74.074527][ T5193] x11: ff80800008300a38 x10: 0000000000000000 x9 : 659d73cc12e1ae00 [ 74.075900][ T5193] x8 : 659d73cc12e1ae00 x7 : 0000000000000001 x6 : 0000000000000001 [ 74.077277][ T5193] x5 : ffff800021876e78 x4 : ffff80001447f520 x3 : ffff80000850fcd0 [ 74.078688][ T5193] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 74.080158][ T5193] Call trace: [ 74.080729][ T5193] btrfs_create_pending_block_groups+0xa8c/0xd1c [ 74.081797][ T5193] __btrfs_end_transaction+0x148/0x5fc [ 74.082719][ T5193] btrfs_end_transaction+0x24/0x34 [ 74.083644][ T5193] btrfs_inc_block_group_ro+0x4f0/0x568 [ 74.084600][ T5193] btrfs_relocate_block_group+0x2c8/0x89c [ 74.085577][ T5193] btrfs_relocate_chunk+0xb8/0x284 [ 74.086443][ T5193] __btrfs_balance+0x1214/0x1c44 [ 74.087337][ T5193] btrfs_balance+0xad0/0x10f8 [ 74.088213][ T5193] btrfs_ioctl_balance+0x4d4/0x660 [ 74.089118][ T5193] btrfs_ioctl+0x20c/0xa8c [ 74.089913][ T5193] __arm64_sys_ioctl+0x14c/0x1c8 [ 74.090746][ T5193] invoke_syscall+0x98/0x28c [ 74.091568][ T5193] el0_svc_common+0x13c/0x258 [ 74.092399][ T5193] do_el0_svc+0x5c/0x140 [ 74.093130][ T5193] el0_svc+0x78/0x1d0 [ 74.093809][ T5193] el0t_64_sync_handler+0xcc/0xe4 [ 74.094650][ T5193] el0t_64_sync+0x1a0/0x1a4 [ 74.095425][ T5193] irq event stamp: 79822 [ 74.096145][ T5193] hardirqs last enabled at (79821): [] __up_console_sem+0xb4/0xfc [ 74.097747][ T5193] hardirqs last disabled at (79822): [] el1_dbg+0x24/0x80 [ 74.099282][ T5193] softirqs last enabled at (79810): [] handle_softirqs+0xa70/0xc14 [ 74.100972][ T5193] softirqs last disabled at (79771): [] __irq_exit_rcu+0x240/0x434 [ 74.102549][ T5193] ---[ end trace a5c2d28934b2c9e3 ]--- [ 74.104807][ T5193] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2441: errno=-28 No space left [ 74.106723][ T5193] BTRFS info (device loop0): forced readonly [ 74.107811][ T5193] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2452: errno=-28 No space left [ 74.109734][ T5193] BTRFS: error (device loop0) in add_block_group_free_space:1315: errno=-28 No space left [ 74.115572][ T5193] BTRFS info (device loop0): balance: ended with status: -30 [ 74.310284][ T5216] loop0: detected capacity change from 0 to 32768 [ 74.329027][ T5216] BTRFS: device fsid 395ef67a-297e-477c-816d-cd80a5b93e5d devid 1 transid 8 /dev/loop0 scanned by syz.0.38 (5216) [ 74.333184][ T5216] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 74.334793][ T5216] BTRFS info (device loop0): using free space tree [ 74.335865][ T5216] BTRFS info (device loop0): has skinny extents [ 74.344431][ T5216] BTRFS info (device loop0): enabling ssd optimizations [ 74.348887][ T5216] BTRFS info (device loop0): balance: start -s [ 74.350187][ T5216] ------------[ cut here ]------------ [ 74.351291][ T5216] WARNING: CPU: 1 PID: 5216 at fs/btrfs/block-group.c:2441 btrfs_create_pending_block_groups+0xa8c/0xd1c [ 74.353233][ T5216] Modules linked in: [ 74.353946][ T5216] CPU: 1 PID: 5216 Comm: syz.0.38 Tainted: G W syzkaller #0 [ 74.355526][ T5216] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 74.357370][ T5216] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 74.358800][ T5216] pc : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 74.359999][ T5216] lr : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 74.361155][ T5216] sp : ffff800021be7560 [ 74.361956][ T5216] x29: ffff800021be7720 x28: dfff800000000000 x27: ffff0000dea9d9a0 [ 74.363416][ T5216] x26: 1fffe0001a12370b x25: ffff0000d091b858 x24: 1fffe0001a12370a [ 74.364879][ T5216] x23: ffff0000d091b850 x22: 00000000ffffffe4 x21: ffff0000d091b9b0 [ 74.366313][ T5216] x20: ffff0000ed5f19d0 x19: 0000000000000000 x18: 0000000000000000 [ 74.367765][ T5216] x17: 0000000000000000 x16: ffff80001135f958 x15: 0000000000000000 [ 74.369229][ T5216] x14: 0000000000000001 x13: 1fffe000341d09ab x12: 0000000000000000 [ 74.370689][ T5216] x11: ff80800008300a38 x10: 0000000000000000 x9 : f0e7758a84443c00 [ 74.372140][ T5216] x8 : f0e7758a84443c00 x7 : 0000000000000001 x6 : 0000000000000001 [ 74.373467][ T5216] x5 : ffff800021be6e78 x4 : ffff80001447f520 x3 : ffff80000850fcd0 [ 74.374894][ T5216] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 74.376317][ T5216] Call trace: [ 74.376909][ T5216] btrfs_create_pending_block_groups+0xa8c/0xd1c [ 74.377925][ T5216] __btrfs_end_transaction+0x148/0x5fc [ 74.379015][ T5216] btrfs_end_transaction+0x24/0x34 [ 74.379914][ T5216] btrfs_inc_block_group_ro+0x4f0/0x568 [ 74.380846][ T5216] btrfs_relocate_block_group+0x2c8/0x89c [ 74.381851][ T5216] btrfs_relocate_chunk+0xb8/0x284 [ 74.382772][ T5216] __btrfs_balance+0x1214/0x1c44 [ 74.383655][ T5216] btrfs_balance+0xad0/0x10f8 [ 74.384472][ T5216] btrfs_ioctl_balance+0x4d4/0x660 [ 74.385323][ T5216] btrfs_ioctl+0x20c/0xa8c [ 74.386111][ T5216] __arm64_sys_ioctl+0x14c/0x1c8 [ 74.386957][ T5216] invoke_syscall+0x98/0x28c [ 74.387722][ T5216] el0_svc_common+0x13c/0x258 [ 74.388569][ T5216] do_el0_svc+0x5c/0x140 [ 74.389333][ T5216] el0_svc+0x78/0x1d0 [ 74.390015][ T5216] el0t_64_sync_handler+0xcc/0xe4 [ 74.390930][ T5216] el0t_64_sync+0x1a0/0x1a4 [ 74.391735][ T5216] irq event stamp: 80098 [ 74.392478][ T5216] hardirqs last enabled at (80097): [] __up_console_sem+0xb4/0xfc [ 74.394159][ T5216] hardirqs last disabled at (80098): [] el1_dbg+0x24/0x80 [ 74.395627][ T5216] softirqs last enabled at (79982): [] local_bh_enable+0x10/0x34 [ 74.397270][ T5216] softirqs last disabled at (79980): [] local_bh_disable+0x10/0x34 [ 74.398953][ T5216] ---[ end trace a5c2d28934b2c9e4 ]--- [ 74.402576][ T5216] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2441: errno=-28 No space left [ 74.404451][ T5216] BTRFS info (device loop0): forced readonly [ 74.405479][ T5216] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2452: errno=-28 No space left [ 74.407284][ T5216] BTRFS: error (device loop0) in add_block_group_free_space:1315: errno=-28 No space left [ 74.409109][ T5216] BTRFS info (device loop0): balance: ended with status: -30 [ 74.599219][ T5238] loop0: detected capacity change from 0 to 32768 [ 74.636510][ T5238] BTRFS: device fsid 395ef67a-297e-477c-816d-cd80a5b93e5d devid 1 transid 8 /dev/loop0 scanned by syz.0.39 (5238) [ 74.639722][ T5238] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 74.641216][ T5238] BTRFS info (device loop0): using free space tree [ 74.643847][ T5238] BTRFS info (device loop0): has skinny extents [ 74.651415][ T5238] BTRFS info (device loop0): enabling ssd optimizations [ 74.656395][ T5238] BTRFS info (device loop0): balance: start -s [ 74.657953][ T5238] ------------[ cut here ]------------ [ 74.658996][ T5238] WARNING: CPU: 1 PID: 5238 at fs/btrfs/block-group.c:2441 btrfs_create_pending_block_groups+0xa8c/0xd1c [ 74.660940][ T5238] Modules linked in: [ 74.661626][ T5238] CPU: 1 PID: 5238 Comm: syz.0.39 Tainted: G W syzkaller #0 [ 74.663323][ T5238] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 74.665249][ T5238] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 74.666635][ T5238] pc : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 74.667764][ T5238] lr : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 74.668921][ T5238] sp : ffff800021df7560 [ 74.669592][ T5238] x29: ffff800021df7720 x28: dfff800000000000 x27: ffff0000dea9db00 [ 74.670989][ T5238] x26: 1fffe0001ae37b0b x25: ffff0000d71bd858 x24: 1fffe0001ae37b0a [ 74.672462][ T5238] x23: ffff0000d71bd850 x22: 00000000ffffffe4 x21: ffff0000d71bd9b0 [ 74.673844][ T5238] x20: ffff0000d0ff59d0 x19: 0000000000000000 x18: 0000000000000000 [ 74.675200][ T5238] x17: 0000000000000000 x16: ffff80001135f958 x15: 0000000000000000 [ 74.676633][ T5238] x14: 0000000000000001 x13: 1fffe000341d09ab x12: 0000000000000000 [ 74.678076][ T5238] x11: ff80800008300a38 x10: 0000000000000000 x9 : ce7036533fea0c00 [ 74.679543][ T5238] x8 : ce7036533fea0c00 x7 : 0000000000000001 x6 : 0000000000000001 [ 74.681000][ T5238] x5 : ffff800021df6e78 x4 : ffff80001447f520 x3 : ffff80000850fcd0 [ 74.682455][ T5238] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 74.683906][ T5238] Call trace: [ 74.684482][ T5238] btrfs_create_pending_block_groups+0xa8c/0xd1c [ 74.685560][ T5238] __btrfs_end_transaction+0x148/0x5fc [ 74.686483][ T5238] btrfs_end_transaction+0x24/0x34 [ 74.687396][ T5238] btrfs_inc_block_group_ro+0x4f0/0x568 [ 74.688440][ T5238] btrfs_relocate_block_group+0x2c8/0x89c [ 74.689511][ T5238] btrfs_relocate_chunk+0xb8/0x284 [ 74.690461][ T5238] __btrfs_balance+0x1214/0x1c44 [ 74.691373][ T5238] btrfs_balance+0xad0/0x10f8 [ 74.692186][ T5238] btrfs_ioctl_balance+0x4d4/0x660 [ 74.692994][ T5238] btrfs_ioctl+0x20c/0xa8c [ 74.693808][ T5238] __arm64_sys_ioctl+0x14c/0x1c8 [ 74.694714][ T5238] invoke_syscall+0x98/0x28c [ 74.695466][ T5238] el0_svc_common+0x13c/0x258 [ 74.696244][ T5238] do_el0_svc+0x5c/0x140 [ 74.696979][ T5238] el0_svc+0x78/0x1d0 [ 74.697653][ T5238] el0t_64_sync_handler+0xcc/0xe4 [ 74.698504][ T5238] el0t_64_sync+0x1a0/0x1a4 [ 74.699352][ T5238] irq event stamp: 79088 [ 74.700068][ T5238] hardirqs last enabled at (79087): [] __up_console_sem+0xb4/0xfc [ 74.701695][ T5238] hardirqs last disabled at (79088): [] el1_dbg+0x24/0x80 [ 74.703218][ T5238] softirqs last enabled at (78954): [] local_bh_enable+0x10/0x34 [ 74.704853][ T5238] softirqs last disabled at (78952): [] local_bh_disable+0x10/0x34 [ 74.706501][ T5238] ---[ end trace a5c2d28934b2c9e5 ]--- [ 74.708505][ T5238] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2441: errno=-28 No space left [ 74.710241][ T5238] BTRFS info (device loop0): forced readonly [ 74.711371][ T5238] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2452: errno=-28 No space left [ 74.713507][ T5238] BTRFS: error (device loop0) in add_block_group_free_space:1315: errno=-28 No space left [ 74.715283][ T5238] BTRFS info (device loop0): balance: ended with status: -30 [ 74.850472][ T5260] loop0: detected capacity change from 0 to 32768 [ 74.854783][ T5260] BTRFS: device fsid 395ef67a-297e-477c-816d-cd80a5b93e5d devid 1 transid 8 /dev/loop0 scanned by syz.0.40 (5260) [ 74.858168][ T5260] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 74.859678][ T5260] BTRFS info (device loop0): using free space tree [ 74.860929][ T5260] BTRFS info (device loop0): has skinny extents [ 74.869748][ T5260] BTRFS info (device loop0): enabling ssd optimizations [ 74.874935][ T5260] BTRFS info (device loop0): balance: start -s [ 74.876549][ T5260] ------------[ cut here ]------------ [ 74.877742][ T5260] WARNING: CPU: 0 PID: 5260 at fs/btrfs/block-group.c:2441 btrfs_create_pending_block_groups+0xa8c/0xd1c [ 74.879597][ T5260] Modules linked in: [ 74.880200][ T5260] CPU: 0 PID: 5260 Comm: syz.0.40 Tainted: G W syzkaller #0 [ 74.881553][ T5260] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 74.883306][ T5260] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 74.884625][ T5260] pc : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 74.885758][ T5260] lr : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 74.886912][ T5260] sp : ffff800021877560 [ 74.887593][ T5260] x29: ffff800021877720 x28: dfff800000000000 x27: ffff0000dea376e0 [ 74.888994][ T5260] x26: 1fffe0001bca670b x25: ffff0000de533858 x24: 1fffe0001bca670a [ 74.890479][ T5260] x23: ffff0000de533850 x22: 00000000ffffffe4 x21: ffff0000de5339b0 [ 74.891866][ T5260] x20: ffff0000ec2259d0 x19: 0000000000000000 x18: 0000000000000000 [ 74.893312][ T5260] x17: 0000000000000000 x16: ffff80001135f958 x15: 0000000000000000 [ 74.894757][ T5260] x14: 0000000000000001 x13: 1fffe000341cc7ab x12: 0000000000000000 [ 74.896173][ T5260] x11: ff80800008300a38 x10: 0000000000000000 x9 : d8fabe9595a80d00 [ 74.897537][ T5260] x8 : d8fabe9595a80d00 x7 : 0000000000000001 x6 : 0000000000000001 [ 74.898961][ T5260] x5 : ffff800021876e78 x4 : ffff80001447f520 x3 : ffff80000850fcd0 [ 74.900364][ T5260] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 74.901745][ T5260] Call trace: [ 74.902312][ T5260] btrfs_create_pending_block_groups+0xa8c/0xd1c [ 74.903380][ T5260] __btrfs_end_transaction+0x148/0x5fc [ 74.904364][ T5260] btrfs_end_transaction+0x24/0x34 [ 74.905292][ T5260] btrfs_inc_block_group_ro+0x4f0/0x568 [ 74.906301][ T5260] btrfs_relocate_block_group+0x2c8/0x89c [ 74.907334][ T5260] btrfs_relocate_chunk+0xb8/0x284 [ 74.908281][ T5260] __btrfs_balance+0x1214/0x1c44 [ 74.909187][ T5260] btrfs_balance+0xad0/0x10f8 [ 74.909968][ T5260] btrfs_ioctl_balance+0x4d4/0x660 [ 74.910917][ T5260] btrfs_ioctl+0x20c/0xa8c [ 74.911730][ T5260] __arm64_sys_ioctl+0x14c/0x1c8 [ 74.912627][ T5260] invoke_syscall+0x98/0x28c [ 74.913444][ T5260] el0_svc_common+0x13c/0x258 [ 74.914304][ T5260] do_el0_svc+0x5c/0x140 [ 74.915095][ T5260] el0_svc+0x78/0x1d0 [ 74.915835][ T5260] el0t_64_sync_handler+0xcc/0xe4 [ 74.916688][ T5260] el0t_64_sync+0x1a0/0x1a4 [ 74.917507][ T5260] irq event stamp: 79286 [ 74.918249][ T5260] hardirqs last enabled at (79285): [] __up_console_sem+0xb4/0xfc [ 74.919883][ T5260] hardirqs last disabled at (79286): [] el1_dbg+0x24/0x80 [ 74.921416][ T5260] softirqs last enabled at (79182): [] handle_softirqs+0xa70/0xc14 [ 74.923095][ T5260] softirqs last disabled at (79075): [] __irq_exit_rcu+0x240/0x434 [ 74.924772][ T5260] ---[ end trace a5c2d28934b2c9e6 ]--- [ 74.927871][ T5260] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2441: errno=-28 No space left [ 74.929725][ T5260] BTRFS info (device loop0): forced readonly [ 74.930803][ T5260] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2452: errno=-28 No space left [ 74.933043][ T5260] BTRFS: error (device loop0) in add_block_group_free_space:1315: errno=-28 No space left [ 74.934632][ T5260] BTRFS info (device loop0): balance: ended with status: -30 [ 75.071784][ T5282] loop0: detected capacity change from 0 to 32768 [ 75.079447][ T5282] BTRFS: device fsid 395ef67a-297e-477c-816d-cd80a5b93e5d devid 1 transid 8 /dev/loop0 scanned by syz.0.41 (5282) [ 75.085570][ T5282] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 75.087974][ T5282] BTRFS info (device loop0): using free space tree [ 75.089059][ T5282] BTRFS info (device loop0): has skinny extents [ 75.109670][ T5282] BTRFS info (device loop0): enabling ssd optimizations [ 75.114991][ T5282] BTRFS info (device loop0): balance: start -s [ 75.116379][ T5282] ------------[ cut here ]------------ [ 75.117391][ T5282] WARNING: CPU: 1 PID: 5282 at fs/btrfs/block-group.c:2441 btrfs_create_pending_block_groups+0xa8c/0xd1c [ 75.119147][ T5282] Modules linked in: [ 75.119729][ T5282] CPU: 1 PID: 5282 Comm: syz.0.41 Tainted: G W syzkaller #0 [ 75.121047][ T5282] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 75.122775][ T5282] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 75.124209][ T5282] pc : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 75.125423][ T5282] lr : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 75.126583][ T5282] sp : ffff800021ac7560 [ 75.127289][ T5282] x29: ffff800021ac7720 x28: dfff800000000000 x27: ffff0000dea9d790 [ 75.128796][ T5282] x26: 1fffe0001929870b x25: ffff0000c94c3858 x24: 1fffe0001929870a [ 75.130196][ T5282] x23: ffff0000c94c3850 x22: 00000000ffffffe4 x21: ffff0000c94c39b0 [ 75.131625][ T5282] x20: ffff0000e7a659d0 x19: 0000000000000000 x18: 0000000000000000 [ 75.133092][ T5282] x17: 0000000000000000 x16: ffff80001135f958 x15: 0000000000000000 [ 75.134566][ T5282] x14: 0000000000000001 x13: 1fffe000341d09ab x12: 0000000000000000 [ 75.136031][ T5282] x11: ff80800008300a38 x10: 0000000000000000 x9 : ab19f98fc9d65300 [ 75.137398][ T5282] x8 : ab19f98fc9d65300 x7 : 0000000000000001 x6 : 0000000000000001 [ 75.138788][ T5282] x5 : ffff800021ac6e78 x4 : ffff80001447f520 x3 : ffff80000850fcd0 [ 75.140211][ T5282] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 75.141657][ T5282] Call trace: [ 75.142241][ T5282] btrfs_create_pending_block_groups+0xa8c/0xd1c [ 75.143330][ T5282] __btrfs_end_transaction+0x148/0x5fc [ 75.144302][ T5282] btrfs_end_transaction+0x24/0x34 [ 75.145213][ T5282] btrfs_inc_block_group_ro+0x4f0/0x568 [ 75.146181][ T5282] btrfs_relocate_block_group+0x2c8/0x89c [ 75.147266][ T5282] btrfs_relocate_chunk+0xb8/0x284 [ 75.148179][ T5282] __btrfs_balance+0x1214/0x1c44 [ 75.149099][ T5282] btrfs_balance+0xad0/0x10f8 [ 75.149992][ T5282] btrfs_ioctl_balance+0x4d4/0x660 [ 75.150884][ T5282] btrfs_ioctl+0x20c/0xa8c [ 75.151648][ T5282] __arm64_sys_ioctl+0x14c/0x1c8 [ 75.152538][ T5282] invoke_syscall+0x98/0x28c [ 75.153373][ T5282] el0_svc_common+0x13c/0x258 [ 75.154174][ T5282] do_el0_svc+0x5c/0x140 [ 75.154900][ T5282] el0_svc+0x78/0x1d0 [ 75.155608][ T5282] el0t_64_sync_handler+0xcc/0xe4 [ 75.156442][ T5282] el0t_64_sync+0x1a0/0x1a4 [ 75.157238][ T5282] irq event stamp: 79340 [ 75.157970][ T5282] hardirqs last enabled at (79339): [] __up_console_sem+0xb4/0xfc [ 75.159603][ T5282] hardirqs last disabled at (79340): [] el1_dbg+0x24/0x80 [ 75.161076][ T5282] softirqs last enabled at (79218): [] local_bh_enable+0x10/0x34 [ 75.162725][ T5282] softirqs last disabled at (79216): [] local_bh_disable+0x10/0x34 [ 75.164340][ T5282] ---[ end trace a5c2d28934b2c9e7 ]--- [ 75.167681][ T5282] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2441: errno=-28 No space left [ 75.169583][ T5282] BTRFS info (device loop0): forced readonly [ 75.170671][ T5282] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2452: errno=-28 No space left [ 75.173135][ T5282] BTRFS: error (device loop0) in add_block_group_free_space:1315: errno=-28 No space left [ 75.175118][ T5282] BTRFS info (device loop0): balance: ended with status: -30 [ 75.352817][ T5305] BTRFS: device fsid 395ef67a-297e-477c-816d-cd80a5b93e5d devid 1 transid 8 /dev/loop0 scanned by syz.0.42 (5305) [ 75.359344][ T5305] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 75.360900][ T5305] BTRFS info (device loop0): using free space tree [ 75.362257][ T5305] BTRFS info (device loop0): has skinny extents [ 75.370977][ T5305] BTRFS info (device loop0): enabling ssd optimizations [ 75.375820][ T5305] BTRFS info (device loop0): balance: start -s [ 75.377197][ T5305] ------------[ cut here ]------------ [ 75.378234][ T5305] WARNING: CPU: 0 PID: 5305 at fs/btrfs/block-group.c:2441 btrfs_create_pending_block_groups+0xa8c/0xd1c [ 75.380068][ T5305] Modules linked in: [ 75.380701][ T5305] CPU: 0 PID: 5305 Comm: syz.0.42 Tainted: G W syzkaller #0 [ 75.382160][ T5305] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 75.383964][ T5305] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 75.385375][ T5305] pc : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 75.386551][ T5305] lr : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 75.387692][ T5305] sp : ffff800021fe7560 [ 75.388410][ T5305] x29: ffff800021fe7720 x28: dfff800000000000 x27: ffff0000dea37840 [ 75.389869][ T5305] x26: 1fffe00018c0c80b x25: ffff0000c6064058 x24: 1fffe00018c0c80a [ 75.391301][ T5305] x23: ffff0000c6064050 x22: 00000000ffffffe4 x21: ffff0000c60641b0 [ 75.392759][ T5305] x20: ffff0000d13bd9d0 x19: 0000000000000000 x18: 0000000000000000 [ 75.394132][ T5305] x17: 0000000000000000 x16: ffff80001135f958 x15: 0000000000000000 [ 75.395515][ T5305] x14: 0000000000000001 x13: 1fffe000341cc7ab x12: 0000000000000000 [ 75.397079][ T5305] x11: ff80800008300a38 x10: 0000000000000000 x9 : 58f7cebb600fbd00 [ 75.398452][ T5305] x8 : 58f7cebb600fbd00 x7 : 0000000000000001 x6 : 0000000000000001 [ 75.399912][ T5305] x5 : ffff800021fe6e78 x4 : ffff80001447f520 x3 : ffff80000850fcd0 [ 75.401280][ T5305] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 75.402718][ T5305] Call trace: [ 75.403305][ T5305] btrfs_create_pending_block_groups+0xa8c/0xd1c [ 75.404385][ T5305] __btrfs_end_transaction+0x148/0x5fc [ 75.405348][ T5305] btrfs_end_transaction+0x24/0x34 [ 75.406237][ T5305] btrfs_inc_block_group_ro+0x4f0/0x568 [ 75.407165][ T5305] btrfs_relocate_block_group+0x2c8/0x89c [ 75.408199][ T5305] btrfs_relocate_chunk+0xb8/0x284 [ 75.409093][ T5305] __btrfs_balance+0x1214/0x1c44 [ 75.409928][ T5305] btrfs_balance+0xad0/0x10f8 [ 75.410764][ T5305] btrfs_ioctl_balance+0x4d4/0x660 [ 75.411687][ T5305] btrfs_ioctl+0x20c/0xa8c [ 75.412485][ T5305] __arm64_sys_ioctl+0x14c/0x1c8 [ 75.413323][ T5305] invoke_syscall+0x98/0x28c [ 75.414149][ T5305] el0_svc_common+0x13c/0x258 [ 75.414985][ T5305] do_el0_svc+0x5c/0x140 [ 75.415739][ T5305] el0_svc+0x78/0x1d0 [ 75.416452][ T5305] el0t_64_sync_handler+0xcc/0xe4 [ 75.417344][ T5305] el0t_64_sync+0x1a0/0x1a4 [ 75.418144][ T5305] irq event stamp: 79434 [ 75.418844][ T5305] hardirqs last enabled at (79433): [] __up_console_sem+0xb4/0xfc [ 75.420452][ T5305] hardirqs last disabled at (79434): [] el1_dbg+0x24/0x80 [ 75.421972][ T5305] softirqs last enabled at (79312): [] local_bh_enable+0x10/0x34 [ 75.423629][ T5305] softirqs last disabled at (79310): [] local_bh_disable+0x10/0x34 [ 75.425337][ T5305] ---[ end trace a5c2d28934b2c9e8 ]--- [ 75.426934][ T5305] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2441: errno=-28 No space left [ 75.428597][ T5305] BTRFS info (device loop0): forced readonly [ 75.429594][ T5305] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2452: errno=-28 No space left [ 75.431294][ T5305] BTRFS: error (device loop0) in add_block_group_free_space:1315: errno=-28 No space left [ 75.433208][ T5305] BTRFS info (device loop0): balance: ended with status: -30 [ 75.572446][ T5327] BTRFS: device fsid 395ef67a-297e-477c-816d-cd80a5b93e5d devid 1 transid 8 /dev/loop0 scanned by syz.0.43 (5327) [ 75.576236][ T5327] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 75.577946][ T5327] BTRFS info (device loop0): using free space tree [ 75.579057][ T5327] BTRFS info (device loop0): has skinny extents [ 75.601744][ T5327] BTRFS info (device loop0): enabling ssd optimizations [ 75.606310][ T5327] BTRFS info (device loop0): balance: start -s [ 75.607761][ T5327] ------------[ cut here ]------------ [ 75.608873][ T5327] WARNING: CPU: 1 PID: 5327 at fs/btrfs/block-group.c:2441 btrfs_create_pending_block_groups+0xa8c/0xd1c [ 75.610816][ T5327] Modules linked in: [ 75.611451][ T5327] CPU: 1 PID: 5327 Comm: syz.0.43 Tainted: G W syzkaller #0 [ 75.612985][ T5327] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 75.614740][ T5327] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 75.616071][ T5327] pc : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 75.617219][ T5327] lr : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 75.618386][ T5327] sp : ffff800022097560 [ 75.619135][ T5327] x29: ffff800022097720 x28: dfff800000000000 x27: ffff0000dea9d0b0 [ 75.620507][ T5327] x26: 1fffe0001b5c2d0b x25: ffff0000dae16858 x24: 1fffe0001b5c2d0a [ 75.621909][ T5327] x23: ffff0000dae16850 x22: 00000000ffffffe4 x21: ffff0000dae169b0 [ 75.623478][ T5327] x20: ffff0000dba859d0 x19: 0000000000000000 x18: 0000000000000000 [ 75.624904][ T5327] x17: 0000000000000000 x16: ffff80001135f958 x15: 0000000000000000 [ 75.626294][ T5327] x14: 0000000000000001 x13: 1fffe000341d09ab x12: 0000000000000000 [ 75.627630][ T5327] x11: ff80800008300a38 x10: 0000000000000000 x9 : 238bcbec3f4fe300 [ 75.629027][ T5327] x8 : 238bcbec3f4fe300 x7 : 0000000000000001 x6 : 0000000000000001 [ 75.630463][ T5327] x5 : ffff800022096e78 x4 : ffff80001447f520 x3 : ffff80000850fcd0 [ 75.631803][ T5327] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 75.633265][ T5327] Call trace: [ 75.633834][ T5327] btrfs_create_pending_block_groups+0xa8c/0xd1c [ 75.634893][ T5327] __btrfs_end_transaction+0x148/0x5fc [ 75.635810][ T5327] btrfs_end_transaction+0x24/0x34 [ 75.636683][ T5327] btrfs_inc_block_group_ro+0x4f0/0x568 [ 75.637614][ T5327] btrfs_relocate_block_group+0x2c8/0x89c [ 75.638607][ T5327] btrfs_relocate_chunk+0xb8/0x284 [ 75.639478][ T5327] __btrfs_balance+0x1214/0x1c44 [ 75.640335][ T5327] btrfs_balance+0xad0/0x10f8 [ 75.641103][ T5327] btrfs_ioctl_balance+0x4d4/0x660 [ 75.642071][ T5327] btrfs_ioctl+0x20c/0xa8c [ 75.642884][ T5327] __arm64_sys_ioctl+0x14c/0x1c8 [ 75.643783][ T5327] invoke_syscall+0x98/0x28c [ 75.644763][ T5327] el0_svc_common+0x13c/0x258 [ 75.645728][ T5327] do_el0_svc+0x5c/0x140 [ 75.646578][ T5327] el0_svc+0x78/0x1d0 [ 75.647348][ T5327] el0t_64_sync_handler+0xcc/0xe4 [ 75.648211][ T5327] el0t_64_sync+0x1a0/0x1a4 [ 75.648993][ T5327] irq event stamp: 79018 [ 75.649693][ T5327] hardirqs last enabled at (79017): [] __up_console_sem+0xb4/0xfc [ 75.651302][ T5327] hardirqs last disabled at (79018): [] el1_dbg+0x24/0x80 [ 75.652814][ T5327] softirqs last enabled at (78884): [] local_bh_enable+0x10/0x34 [ 75.654381][ T5327] softirqs last disabled at (78882): [] local_bh_disable+0x10/0x34 [ 75.656030][ T5327] ---[ end trace a5c2d28934b2c9e9 ]--- [ 75.659178][ T5327] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2441: errno=-28 No space left [ 75.660876][ T5327] BTRFS info (device loop0): forced readonly [ 75.662201][ T5327] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2452: errno=-28 No space left [ 75.663990][ T5327] BTRFS: error (device loop0) in add_block_group_free_space:1315: errno=-28 No space left [ 75.666011][ T5327] BTRFS info (device loop0): balance: ended with status: -30 [ 75.896429][ T5349] BTRFS: device fsid 395ef67a-297e-477c-816d-cd80a5b93e5d devid 1 transid 8 /dev/loop0 scanned by syz.0.44 (5349) [ 75.902347][ T5349] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 75.903973][ T5349] BTRFS info (device loop0): using free space tree [ 75.905149][ T5349] BTRFS info (device loop0): has skinny extents [ 75.924570][ T5349] BTRFS info (device loop0): enabling ssd optimizations [ 75.929489][ T5349] BTRFS info (device loop0): balance: start -s [ 75.930806][ T5349] ------------[ cut here ]------------ [ 75.932415][ T5349] WARNING: CPU: 1 PID: 5349 at fs/btrfs/block-group.c:2441 btrfs_create_pending_block_groups+0xa8c/0xd1c [ 75.934294][ T5349] Modules linked in: [ 75.934898][ T5349] CPU: 1 PID: 5349 Comm: syz.0.44 Tainted: G W syzkaller #0 [ 75.936215][ T5349] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 75.937865][ T5349] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 75.939226][ T5349] pc : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 75.940454][ T5349] lr : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 75.941581][ T5349] sp : ffff800022097560 [ 75.942317][ T5349] x29: ffff800022097720 x28: dfff800000000000 x27: ffff0000dea9d210 [ 75.943803][ T5349] x26: 1fffe00019a5890b x25: ffff0000cd2c4858 x24: 1fffe00019a5890a [ 75.945196][ T5349] x23: ffff0000cd2c4850 x22: 00000000ffffffe4 x21: ffff0000cd2c49b0 [ 75.946576][ T5349] x20: ffff0000dba859d0 x19: 0000000000000000 x18: 0000000000000000 [ 75.948006][ T5349] x17: 0000000000000000 x16: ffff80001135f958 x15: 0000000000000000 [ 75.949456][ T5349] x14: 0000000000000001 x13: 1fffe000341d09ab x12: 0000000000000000 [ 75.950956][ T5349] x11: ff80800008300a38 x10: 0000000000000000 x9 : 9e0dbee24a5a7100 [ 75.952467][ T5349] x8 : 9e0dbee24a5a7100 x7 : 0000000000000001 x6 : 0000000000000001 [ 75.953875][ T5349] x5 : ffff800022096e78 x4 : ffff80001447f520 x3 : ffff80000850fcd0 [ 75.955226][ T5349] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 75.956626][ T5349] Call trace: [ 75.957200][ T5349] btrfs_create_pending_block_groups+0xa8c/0xd1c [ 75.958321][ T5349] __btrfs_end_transaction+0x148/0x5fc [ 75.959238][ T5349] btrfs_end_transaction+0x24/0x34 [ 75.960118][ T5349] btrfs_inc_block_group_ro+0x4f0/0x568 [ 75.961098][ T5349] btrfs_relocate_block_group+0x2c8/0x89c [ 75.962071][ T5349] btrfs_relocate_chunk+0xb8/0x284 [ 75.962960][ T5349] __btrfs_balance+0x1214/0x1c44 [ 75.963835][ T5349] btrfs_balance+0xad0/0x10f8 [ 75.964660][ T5349] btrfs_ioctl_balance+0x4d4/0x660 [ 75.965542][ T5349] btrfs_ioctl+0x20c/0xa8c [ 75.966280][ T5349] __arm64_sys_ioctl+0x14c/0x1c8 [ 75.967100][ T5349] invoke_syscall+0x98/0x28c [ 75.967904][ T5349] el0_svc_common+0x13c/0x258 [ 75.968708][ T5349] do_el0_svc+0x5c/0x140 [ 75.969498][ T5349] el0_svc+0x78/0x1d0 [ 75.970242][ T5349] el0t_64_sync_handler+0xcc/0xe4 [ 75.971170][ T5349] el0t_64_sync+0x1a0/0x1a4 [ 75.971962][ T5349] irq event stamp: 79050 [ 75.972679][ T5349] hardirqs last enabled at (79049): [] __up_console_sem+0xb4/0xfc [ 75.974316][ T5349] hardirqs last disabled at (79050): [] el1_dbg+0x24/0x80 [ 75.975788][ T5349] softirqs last enabled at (79038): [] handle_softirqs+0xa70/0xc14 [ 75.977332][ T5349] softirqs last disabled at (79001): [] __irq_exit_rcu+0x240/0x434 [ 75.978939][ T5349] ---[ end trace a5c2d28934b2c9ea ]--- [ 75.981780][ T5349] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2441: errno=-28 No space left [ 75.983660][ T5349] BTRFS info (device loop0): forced readonly [ 75.984720][ T5349] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2452: errno=-28 No space left [ 75.986394][ T5349] BTRFS: error (device loop0) in add_block_group_free_space:1315: errno=-28 No space left [ 75.988490][ T5349] BTRFS info (device loop0): balance: ended with status: -30 [ 76.206888][ T5371] BTRFS: device fsid 395ef67a-297e-477c-816d-cd80a5b93e5d devid 1 transid 8 /dev/loop0 scanned by syz.0.45 (5371) [ 76.210370][ T5371] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 76.211986][ T5371] BTRFS info (device loop0): using free space tree [ 76.213048][ T5371] BTRFS info (device loop0): has skinny extents [ 76.232494][ T5371] BTRFS info (device loop0): enabling ssd optimizations [ 76.237631][ T5371] BTRFS info (device loop0): balance: start -s [ 76.238966][ T5371] ------------[ cut here ]------------ [ 76.239892][ T5371] WARNING: CPU: 1 PID: 5371 at fs/btrfs/block-group.c:2441 btrfs_create_pending_block_groups+0xa8c/0xd1c [ 76.241742][ T5371] Modules linked in: [ 76.242500][ T5371] CPU: 1 PID: 5371 Comm: syz.0.45 Tainted: G W syzkaller #0 [ 76.244032][ T5371] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 76.245840][ T5371] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 76.247259][ T5371] pc : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 76.248643][ T5371] lr : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 76.250020][ T5371] sp : ffff800022417560 [ 76.250876][ T5371] x29: ffff800022417720 x28: dfff800000000000 x27: ffff0000dea9dbb0 [ 76.252597][ T5371] x26: 1fffe0001a94f20b x25: ffff0000d4a79058 x24: 1fffe0001a94f20a [ 76.254274][ T5371] x23: ffff0000d4a79050 x22: 00000000ffffffe4 x21: ffff0000d4a791b0 [ 76.255947][ T5371] x20: ffff0000dba859d0 x19: 0000000000000000 x18: 0000000000000000 [ 76.257665][ T5371] x17: 0000000000000000 x16: ffff80001135f958 x15: 0000000000000000 [ 76.259269][ T5371] x14: 0000000000000001 x13: 1fffe000341d09ab x12: 0000000000000000 [ 76.260844][ T5371] x11: ff80800008300a38 x10: 0000000000000000 x9 : 0ce8805d269cad00 [ 76.262442][ T5371] x8 : 0ce8805d269cad00 x7 : 0000000000000001 x6 : 0000000000000001 [ 76.264001][ T5371] x5 : ffff800022416e78 x4 : ffff80001447f520 x3 : ffff80000850fcd0 [ 76.265496][ T5371] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 76.267106][ T5371] Call trace: [ 76.267753][ T5371] btrfs_create_pending_block_groups+0xa8c/0xd1c [ 76.268993][ T5371] __btrfs_end_transaction+0x148/0x5fc [ 76.270072][ T5371] btrfs_end_transaction+0x24/0x34 [ 76.271024][ T5371] btrfs_inc_block_group_ro+0x4f0/0x568 [ 76.272113][ T5371] btrfs_relocate_block_group+0x2c8/0x89c [ 76.273165][ T5371] btrfs_relocate_chunk+0xb8/0x284 [ 76.274075][ T5371] __btrfs_balance+0x1214/0x1c44 [ 76.274949][ T5371] btrfs_balance+0xad0/0x10f8 [ 76.275828][ T5371] btrfs_ioctl_balance+0x4d4/0x660 [ 76.276782][ T5371] btrfs_ioctl+0x20c/0xa8c [ 76.277553][ T5371] __arm64_sys_ioctl+0x14c/0x1c8 [ 76.278570][ T5371] invoke_syscall+0x98/0x28c [ 76.279506][ T5371] el0_svc_common+0x13c/0x258 [ 76.280405][ T5371] do_el0_svc+0x5c/0x140 [ 76.281141][ T5371] el0_svc+0x78/0x1d0 [ 76.281856][ T5371] el0t_64_sync_handler+0xcc/0xe4 [ 76.282723][ T5371] el0t_64_sync+0x1a0/0x1a4 [ 76.283510][ T5371] irq event stamp: 79296 [ 76.284305][ T5371] hardirqs last enabled at (79295): [] __up_console_sem+0xb4/0xfc [ 76.285990][ T5371] hardirqs last disabled at (79296): [] el1_dbg+0x24/0x80 [ 76.287520][ T5371] softirqs last enabled at (79156): [] local_bh_enable+0x10/0x34 [ 76.289195][ T5371] softirqs last disabled at (79154): [] local_bh_disable+0x10/0x34 [ 76.290920][ T5371] ---[ end trace a5c2d28934b2c9eb ]--- [ 76.294336][ T5371] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2441: errno=-28 No space left [ 76.296291][ T5371] BTRFS info (device loop0): forced readonly [ 76.297369][ T5371] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2452: errno=-28 No space left [ 76.299093][ T5371] BTRFS: error (device loop0) in add_block_group_free_space:1315: errno=-28 No space left [ 76.300870][ T5371] BTRFS info (device loop0): balance: ended with status: -30 [ 76.475763][ T5393] BTRFS: device fsid 395ef67a-297e-477c-816d-cd80a5b93e5d devid 1 transid 8 /dev/loop0 scanned by syz.0.46 (5393) [ 76.481951][ T5393] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 76.483950][ T5393] BTRFS info (device loop0): using free space tree [ 76.510235][ T5393] ------------[ cut here ]------------ [ 76.511381][ T5393] WARNING: CPU: 1 PID: 5393 at fs/btrfs/block-group.c:2441 btrfs_create_pending_block_groups+0xa8c/0xd1c [ 76.513333][ T5393] Modules linked in: [ 76.514046][ T5393] CPU: 1 PID: 5393 Comm: syz.0.46 Tainted: G W syzkaller #0 [ 76.515559][ T5393] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 76.517334][ T5393] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 76.518641][ T5393] pc : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 76.519773][ T5393] lr : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 76.520906][ T5393] sp : ffff800022417560 [ 76.521589][ T5393] x29: ffff800022417720 x28: dfff800000000000 x27: ffff0000dea9d580 [ 76.523118][ T5393] x26: 1fffe0001970ea0b x25: ffff0000cb875058 x24: 1fffe0001970ea0a [ 76.524625][ T5393] x23: ffff0000cb875050 x22: 00000000ffffffe4 x21: ffff0000cb8751b0 [ 76.526056][ T5393] x20: ffff0000dba859d0 x19: 0000000000000000 x18: 0000000000000000 [ 76.527542][ T5393] x17: 0000000000000000 x16: ffff80001135f958 x15: 0000000000000000 [ 76.528929][ T5393] x14: 0000000000000001 x13: 1fffe000341d09ab x12: 0000000000000000 [ 76.530377][ T5393] x11: ff80800008300a38 x10: 0000000000000000 x9 : af538ad8c32ab500 [ 76.531787][ T5393] x8 : af538ad8c32ab500 x7 : 0000000000000001 x6 : 0000000000000001 [ 76.533182][ T5393] x5 : ffff800022416e78 x4 : ffff80001447f520 x3 : ffff80000850fcd0 [ 76.534564][ T5393] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 76.535901][ T5393] Call trace: [ 76.536441][ T5393] btrfs_create_pending_block_groups+0xa8c/0xd1c [ 76.537516][ T5393] __btrfs_end_transaction+0x148/0x5fc [ 76.538438][ T5393] btrfs_end_transaction+0x24/0x34 [ 76.539319][ T5393] btrfs_inc_block_group_ro+0x4f0/0x568 [ 76.540247][ T5393] btrfs_relocate_block_group+0x2c8/0x89c [ 76.541248][ T5393] btrfs_relocate_chunk+0xb8/0x284 [ 76.542121][ T5393] __btrfs_balance+0x1214/0x1c44 [ 76.542941][ T5393] btrfs_balance+0xad0/0x10f8 [ 76.543774][ T5393] btrfs_ioctl_balance+0x4d4/0x660 [ 76.544722][ T5393] btrfs_ioctl+0x20c/0xa8c [ 76.545511][ T5393] __arm64_sys_ioctl+0x14c/0x1c8 [ 76.546380][ T5393] invoke_syscall+0x98/0x28c [ 76.547221][ T5393] el0_svc_common+0x13c/0x258 [ 76.548040][ T5393] do_el0_svc+0x5c/0x140 [ 76.548816][ T5393] el0_svc+0x78/0x1d0 [ 76.549522][ T5393] el0t_64_sync_handler+0xcc/0xe4 [ 76.550427][ T5393] el0t_64_sync+0x1a0/0x1a4 [ 76.551223][ T5393] irq event stamp: 79206 [ 76.551961][ T5393] hardirqs last enabled at (79205): [] __up_console_sem+0xb4/0xfc [ 76.553642][ T5393] hardirqs last disabled at (79206): [] el1_dbg+0x24/0x80 [ 76.555269][ T5393] softirqs last enabled at (79070): [] local_bh_enable+0x10/0x34 [ 76.556927][ T5393] softirqs last disabled at (79068): [] local_bh_disable+0x10/0x34 [ 76.558737][ T5393] ---[ end trace a5c2d28934b2c9ec ]--- [ 76.560004][ T5393] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2441: errno=-28 No space left [ 76.562312][ T5393] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2452: errno=-28 No space left [ 76.564311][ T5393] BTRFS: error (device loop0) in add_block_group_free_space:1315: errno=-28 No space left [ 76.752739][ T5415] BTRFS: device fsid 395ef67a-297e-477c-816d-cd80a5b93e5d devid 1 transid 8 /dev/loop0 scanned by syz.0.47 (5415) [ 76.772367][ T5415] ------------[ cut here ]------------ [ 76.773514][ T5415] WARNING: CPU: 1 PID: 5415 at fs/btrfs/block-group.c:2441 btrfs_create_pending_block_groups+0xa8c/0xd1c [ 76.775338][ T5415] Modules linked in: [ 76.775989][ T5415] CPU: 1 PID: 5415 Comm: syz.0.47 Tainted: G W syzkaller #0 [ 76.777323][ T5415] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 76.778938][ T5415] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 76.780206][ T5415] pc : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 76.781347][ T5415] lr : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 76.782507][ T5415] sp : ffff800022417560 [ 76.783255][ T5415] x29: ffff800022417720 x28: dfff800000000000 x27: ffff0000dea9de70 [ 76.784734][ T5415] x26: 1fffe000197f590b x25: ffff0000cbfac858 x24: 1fffe000197f590a [ 76.786169][ T5415] x23: ffff0000cbfac850 x22: 00000000ffffffe4 x21: ffff0000cbfac9b0 [ 76.787625][ T5415] x20: ffff0000ed8b99d0 x19: 0000000000000000 x18: 0000000000000000 [ 76.789067][ T5415] x17: 0000000000000000 x16: ffff80001135f958 x15: 0000000000000000 [ 76.790490][ T5415] x14: 0000000000000001 x13: 1fffe000341d09ab x12: 0000000000000000 [ 76.791971][ T5415] x11: ff80800008300a38 x10: 0000000000000000 x9 : 7483224428058e00 [ 76.793392][ T5415] x8 : 7483224428058e00 x7 : 0000000000000001 x6 : 0000000000000001 [ 76.794811][ T5415] x5 : ffff800022416e78 x4 : ffff80001447f520 x3 : ffff80000850fcd0 [ 76.796300][ T5415] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 76.797699][ T5415] Call trace: [ 76.798353][ T5415] btrfs_create_pending_block_groups+0xa8c/0xd1c [ 76.799490][ T5415] __btrfs_end_transaction+0x148/0x5fc [ 76.800474][ T5415] btrfs_end_transaction+0x24/0x34 [ 76.801385][ T5415] btrfs_inc_block_group_ro+0x4f0/0x568 [ 76.802450][ T5415] btrfs_relocate_block_group+0x2c8/0x89c [ 76.803445][ T5415] btrfs_relocate_chunk+0xb8/0x284 [ 76.804379][ T5415] __btrfs_balance+0x1214/0x1c44 [ 76.805346][ T5415] btrfs_balance+0xad0/0x10f8 [ 76.806220][ T5415] btrfs_ioctl_balance+0x4d4/0x660 [ 76.807127][ T5415] btrfs_ioctl+0x20c/0xa8c [ 76.807916][ T5415] __arm64_sys_ioctl+0x14c/0x1c8 [ 76.808763][ T5415] invoke_syscall+0x98/0x28c [ 76.809569][ T5415] el0_svc_common+0x13c/0x258 [ 76.810414][ T5415] do_el0_svc+0x5c/0x140 [ 76.811147][ T5415] el0_svc+0x78/0x1d0 [ 76.811853][ T5415] el0t_64_sync_handler+0xcc/0xe4 [ 76.812771][ T5415] el0t_64_sync+0x1a0/0x1a4 [ 76.813535][ T5415] irq event stamp: 79210 [ 76.814278][ T5415] hardirqs last enabled at (79209): [] __up_console_sem+0xb4/0xfc [ 76.815948][ T5415] hardirqs last disabled at (79210): [] el1_dbg+0x24/0x80 [ 76.817542][ T5415] softirqs last enabled at (79086): [] local_bh_enable+0x10/0x34 [ 76.819272][ T5415] softirqs last disabled at (79084): [] local_bh_disable+0x10/0x34 [ 76.821058][ T5415] ---[ end trace a5c2d28934b2c9ed ]--- [ 76.825990][ T5415] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2441: errno=-28 No space left [ 76.827862][ T5415] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2452: errno=-28 No space left [ 76.829733][ T5415] BTRFS: error (device loop0) in add_block_group_free_space:1315: errno=-28 No space left [ 77.012677][ T5437] BTRFS: device fsid 395ef67a-297e-477c-816d-cd80a5b93e5d devid 1 transid 8 /dev/loop0 scanned by syz.0.48 (5437) [ 77.066166][ T5437] ------------[ cut here ]------------ [ 77.067364][ T5437] WARNING: CPU: 0 PID: 5437 at fs/btrfs/block-group.c:2441 btrfs_create_pending_block_groups+0xa8c/0xd1c [ 77.069103][ T5437] Modules linked in: [ 77.069743][ T5437] CPU: 0 PID: 5437 Comm: syz.0.48 Tainted: G W syzkaller #0 [ 77.071080][ T5437] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 77.072721][ T5437] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 77.074152][ T5437] pc : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 77.075278][ T5437] lr : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 77.076436][ T5437] sp : ffff800022417560 [ 77.077259][ T5437] x29: ffff800022417720 x28: dfff800000000000 x27: ffff0000dea379a0 [ 77.078884][ T5437] x26: 1fffe0001839fa0b x25: ffff0000c1cfd058 x24: 1fffe0001839fa0a [ 77.080471][ T5437] x23: ffff0000c1cfd050 x22: 00000000ffffffe4 x21: ffff0000c1cfd1b0 [ 77.081994][ T5437] x20: ffff0000ed8b99d0 x19: 0000000000000000 x18: 0000000000000000 [ 77.083446][ T5437] x17: 0000000000000000 x16: ffff80001135f958 x15: 0000000000000000 [ 77.084880][ T5437] x14: 0000000000000001 x13: 1fffe000341cc7ab x12: 0000000000000000 [ 77.086301][ T5437] x11: ff80800008300a38 x10: 0000000000000000 x9 : ff4ea0fa2782b400 [ 77.087702][ T5437] x8 : ff4ea0fa2782b400 x7 : 0000000000000001 x6 : 0000000000000001 [ 77.089151][ T5437] x5 : ffff800022416e78 x4 : ffff80001447f520 x3 : ffff80000850fcd0 [ 77.090623][ T5437] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 77.091984][ T5437] Call trace: [ 77.092590][ T5437] btrfs_create_pending_block_groups+0xa8c/0xd1c [ 77.093681][ T5437] __btrfs_end_transaction+0x148/0x5fc [ 77.094618][ T5437] btrfs_end_transaction+0x24/0x34 [ 77.095473][ T5437] btrfs_inc_block_group_ro+0x4f0/0x568 [ 77.096458][ T5437] btrfs_relocate_block_group+0x2c8/0x89c [ 77.097415][ T5437] btrfs_relocate_chunk+0xb8/0x284 [ 77.098281][ T5437] __btrfs_balance+0x1214/0x1c44 [ 77.099178][ T5437] btrfs_balance+0xad0/0x10f8 [ 77.099974][ T5437] btrfs_ioctl_balance+0x4d4/0x660 [ 77.100859][ T5437] btrfs_ioctl+0x20c/0xa8c [ 77.101628][ T5437] __arm64_sys_ioctl+0x14c/0x1c8 [ 77.102496][ T5437] invoke_syscall+0x98/0x28c [ 77.103282][ T5437] el0_svc_common+0x13c/0x258 [ 77.104068][ T5437] do_el0_svc+0x5c/0x140 [ 77.104777][ T5437] el0_svc+0x78/0x1d0 [ 77.105480][ T5437] el0t_64_sync_handler+0xcc/0xe4 [ 77.106388][ T5437] el0t_64_sync+0x1a0/0x1a4 [ 77.107174][ T5437] irq event stamp: 79000 [ 77.107911][ T5437] hardirqs last enabled at (78999): [] __up_console_sem+0xb4/0xfc [ 77.109584][ T5437] hardirqs last disabled at (79000): [] el1_dbg+0x24/0x80 [ 77.111026][ T5437] softirqs last enabled at (78880): [] local_bh_enable+0x10/0x34 [ 77.112675][ T5437] softirqs last disabled at (78878): [] local_bh_disable+0x10/0x34 [ 77.114373][ T5437] ---[ end trace a5c2d28934b2c9ee ]--- [ 77.115870][ T5437] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2441: errno=-28 No space left [ 77.117675][ T5437] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2452: errno=-28 No space left [ 77.119287][ T5437] BTRFS: error (device loop0) in add_block_group_free_space:1315: errno=-28 No space left [ 77.267361][ T5459] BTRFS: device fsid 395ef67a-297e-477c-816d-cd80a5b93e5d devid 1 transid 8 /dev/loop0 scanned by syz.0.49 (5459) [ 77.291233][ T5459] ------------[ cut here ]------------ [ 77.292663][ T5459] WARNING: CPU: 1 PID: 5459 at fs/btrfs/block-group.c:2441 btrfs_create_pending_block_groups+0xa8c/0xd1c [ 77.294561][ T5459] Modules linked in: [ 77.295231][ T5459] CPU: 1 PID: 5459 Comm: syz.0.49 Tainted: G W syzkaller #0 [ 77.296632][ T5459] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 77.298396][ T5459] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 77.299807][ T5459] pc : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 77.301007][ T5459] lr : btrfs_create_pending_block_groups+0xa8c/0xd1c [ 77.302131][ T5459] sp : ffff8000224e7560 [ 77.302888][ T5459] x29: ffff8000224e7720 x28: dfff800000000000 x27: ffff0000dea9d370 [ 77.304266][ T5459] x26: 1fffe0001acc440b x25: ffff0000d6622058 x24: 1fffe0001acc440a [ 77.305706][ T5459] x23: ffff0000d6622050 x22: 00000000ffffffe4 x21: ffff0000d66221b0 [ 77.307097][ T5459] x20: ffff0000dd2a99d0 x19: 0000000000000000 x18: 0000000000000000 [ 77.308583][ T5459] x17: 0000000000000000 x16: ffff80001135f958 x15: 0000000000000000 [ 77.310061][ T5459] x14: 0000000000000001 x13: 1fffe000341d09ab x12: 0000000000000000 [ 77.311406][ T5459] x11: ff80800008300a38 x10: 0000000000000000 x9 : 7b287bfa031c0400 [ 77.312826][ T5459] x8 : 7b287bfa031c0400 x7 : 0000000000000001 x6 : 0000000000000001 [ 77.314205][ T5459] x5 : ffff8000224e6e78 x4 : ffff80001447f520 x3 : ffff80000850fcd0 [ 77.315654][ T5459] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 77.317073][ T5459] Call trace: [ 77.317654][ T5459] btrfs_create_pending_block_groups+0xa8c/0xd1c [ 77.318752][ T5459] __btrfs_end_transaction+0x148/0x5fc [ 77.319664][ T5459] btrfs_end_transaction+0x24/0x34 [ 77.320621][ T5459] btrfs_inc_block_group_ro+0x4f0/0x568 [ 77.321603][ T5459] btrfs_relocate_block_group+0x2c8/0x89c [ 77.322598][ T5459] btrfs_relocate_chunk+0xb8/0x284 [ 77.323483][ T5459] __btrfs_balance+0x1214/0x1c44 [ 77.324352][ T5459] btrfs_balance+0xad0/0x10f8 [ 77.325164][ T5459] btrfs_ioctl_balance+0x4d4/0x660 [ 77.326008][ T5459] btrfs_ioctl+0x20c/0xa8c [ 77.326779][ T5459] __arm64_sys_ioctl+0x14c/0x1c8 [ 77.327675][ T5459] invoke_syscall+0x98/0x28c [ 77.328526][ T5459] el0_svc_common+0x13c/0x258 [ 77.329361][ T5459] do_el0_svc+0x5c/0x140 [ 77.330090][ T5459] el0_svc+0x78/0x1d0 [ 77.330767][ T5459] el0t_64_sync_handler+0xcc/0xe4 [ 77.331580][ T5459] el0t_64_sync+0x1a0/0x1a4 [ 77.332376][ T5459] irq event stamp: 79788 [ 77.333086][ T5459] hardirqs last enabled at (79787): [] __up_console_sem+0xb4/0xfc [ 77.334758][ T5459] hardirqs last disabled at (79788): [] el1_dbg+0x24/0x80 [ 77.336239][ T5459] softirqs last enabled at (79776): [] handle_softirqs+0xa70/0xc14 [ 77.337952][ T5459] softirqs last disabled at (79681): [] __irq_exit_rcu+0x240/0x434 [ 77.339643][ T5459] ---[ end trace a5c2d28934b2c9ef ]--- [ 77.343039][ T5459] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2441: errno=-28 No space left [ 77.345117][ T5459] BTRFS: error (device loop0) in btrfs_create_pending_block_groups:2452: errno=-28 No space left [ 77.346970][ T5459] BTRFS: error (device loop0) in add_block_group_free_space:1315: errno=-28 No space left 1970/01/01 00:01:17 executed programs: 36 [ 77.490623][ T5481] set_capacity_and_notify: 8 callbacks suppressed [ 77.490632][ T5481] loop0: detected capacity change from 0 to 32768