[ 34.120235][ T136] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 36.278692][ T136] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 36.319582][ T136] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 36.359543][ T136] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 37.579367][ T136] device hsr_slave_0 left promiscuous mode [ 37.605422][ T136] device hsr_slave_1 left promiscuous mode [ 37.694753][ T136] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 37.696148][ T136] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 37.698261][ T136] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 37.699783][ T136] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 37.701491][ T136] device bridge_slave_1 left promiscuous mode [ 37.703140][ T136] bridge0: port 2(bridge_slave_1) entered disabled state [ 37.756281][ T136] device bridge_slave_0 left promiscuous mode [ 37.757683][ T136] bridge0: port 1(bridge_slave_0) entered disabled state [ 37.914963][ T136] device veth1_macvtap left promiscuous mode [ 37.916295][ T136] device veth0_macvtap left promiscuous mode [ 37.917518][ T136] device veth1_vlan left promiscuous mode [ 37.918755][ T136] device veth0_vlan left promiscuous mode [ 38.026333][ T136] team0 (unregistering): Port device team_slave_1 removed [ 38.031272][ T136] team0 (unregistering): Port device team_slave_0 removed [ 38.037969][ T136] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 38.088323][ T136] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 38.210258][ T136] bond0 (unregistering): Released all slaves Warning: Permanently added '10.128.1.183' (ED25519) to the list of known hosts. 1970/01/01 00:00:38 ignoring optional flag "type"="gce" 1970/01/01 00:00:38 parsed 1 programs 1970/01/01 00:00:38 executed programs: 0 [ 38.719909][ T4249] chnl_net:caif_netlink_parms(): no params data found [ 38.738732][ T4249] bridge0: port 1(bridge_slave_0) entered blocking state [ 38.740220][ T4249] bridge0: port 1(bridge_slave_0) entered disabled state [ 38.741983][ T4249] device bridge_slave_0 entered promiscuous mode [ 38.744299][ T4249] bridge0: port 2(bridge_slave_1) entered blocking state [ 38.746176][ T4249] bridge0: port 2(bridge_slave_1) entered disabled state [ 38.748074][ T4249] device bridge_slave_1 entered promiscuous mode [ 38.757195][ T4249] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 38.760106][ T4249] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 38.769082][ T4249] team0: Port device team_slave_0 added [ 38.771148][ T4249] team0: Port device team_slave_1 added [ 38.779158][ T4249] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 38.780547][ T4249] 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. [ 38.786363][ T4249] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 38.789153][ T4249] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 38.790606][ T4249] 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. [ 38.796375][ T4249] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 38.855935][ T4249] device hsr_slave_0 entered promiscuous mode [ 38.895476][ T4249] device hsr_slave_1 entered promiscuous mode [ 39.558583][ T4249] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 39.596077][ T4249] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 39.645246][ T4249] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 39.696143][ T4249] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 39.751375][ T4249] 8021q: adding VLAN 0 to HW filter on device bond0 [ 39.756082][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 39.757945][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 39.760937][ T4249] 8021q: adding VLAN 0 to HW filter on device team0 [ 39.763580][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 39.771074][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 39.773057][ T148] bridge0: port 1(bridge_slave_0) entered blocking state [ 39.774499][ T148] bridge0: port 1(bridge_slave_0) entered forwarding state [ 39.778610][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 39.782111][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 39.783988][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 39.786972][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 39.788408][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 39.799098][ T4249] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 39.801022][ T4249] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 39.807145][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 39.809123][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 39.811049][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 39.813226][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 39.816523][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 39.818580][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 39.820605][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 39.822408][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 39.824389][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 39.828257][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 39.830398][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 39.832202][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 39.886291][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 39.887872][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 39.891643][ T4249] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 39.899923][ T1604] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 39.901985][ T1604] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 39.918593][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 39.920476][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 39.922367][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 39.924061][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 39.928689][ T4249] device veth0_vlan entered promiscuous mode [ 39.933464][ T4249] device veth1_vlan entered promiscuous mode [ 39.942159][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 39.943909][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 39.948866][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 39.950864][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 39.954209][ T4249] device veth0_macvtap entered promiscuous mode [ 39.958064][ T4249] device veth1_macvtap entered promiscuous mode [ 39.964515][ T4249] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 39.967652][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 39.969523][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 39.971252][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 39.973014][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 39.977975][ T4249] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 39.980661][ T4249] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 39.982516][ T4249] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 39.984309][ T4249] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 39.986927][ T4249] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 39.989775][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 39.991662][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 40.135409][ T4364] loop0: detected capacity change from 0 to 32768 [ 40.150632][ T4364] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4364) [ 40.159445][ T4364] BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm [ 40.161619][ T4364] BTRFS info (device loop0): force clearing of disk cache [ 40.163252][ T4364] BTRFS info (device loop0): setting nodatasum [ 40.165488][ T4364] BTRFS info (device loop0): allowing degraded mounts [ 40.167386][ T4364] BTRFS info (device loop0): enabling disk space caching [ 40.169248][ T4364] BTRFS info (device loop0): disk space caching is enabled [ 40.171185][ T4364] BTRFS info (device loop0): has skinny extents [ 40.215968][ T4364] BTRFS info (device loop0): enabling ssd optimizations [ 40.218870][ T4364] BTRFS info (device loop0): clearing free space tree [ 40.220609][ T4364] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 40.222792][ T4364] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 40.239504][ T4364] BTRFS info (device loop0): checking UUID tree [ 40.244562][ T4364] FAULT_INJECTION: forcing a failure. [ 40.244562][ T4364] name failslab, interval 1, probability 0, space 0, times 1 [ 40.248704][ T4364] CPU: 1 PID: 4364 Comm: syz-executor.0 Not tainted syzkaller #0 [ 40.250246][ T4364] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 40.252358][ T4364] Call trace: [ 40.253062][ T4364] dump_backtrace+0x0/0x458 [ 40.254008][ T4364] show_stack+0x2c/0x3c [ 40.254887][ T4364] __dump_stack+0x30/0x40 [ 40.255794][ T4364] dump_stack_lvl+0xf4/0x15c [ 40.256848][ T4364] dump_stack+0x1c/0x5c [ 40.257792][ T4364] should_fail+0x3c8/0x520 [ 40.258774][ T4364] __should_failslab+0xbc/0x10c [ 40.259824][ T4364] should_failslab+0x10/0x28 [ 40.260828][ T4364] slab_pre_alloc_hook+0x64/0xe8 [ 40.261867][ T4364] kmem_cache_alloc+0x94/0x3d8 [ 40.262854][ T4364] start_transaction+0x530/0x1438 [ 40.263854][ T4364] btrfs_attach_transaction_barrier+0x30/0xac [ 40.265082][ T4364] btrfs_sync_fs+0x13c/0xb2c [ 40.266062][ T4364] sync_filesystem+0x1a0/0x218 [ 40.267077][ T4364] btrfs_remount+0x190/0x12ac [ 40.268059][ T4364] legacy_reconfigure+0xfc/0x114 [ 40.269059][ T4364] reconfigure_super+0x1d0/0x6c4 [ 40.270100][ T4364] path_mount+0xd20/0xfe8 [ 40.270997][ T4364] __arm64_sys_mount+0x488/0x5f8 [ 40.272016][ T4364] invoke_syscall+0x98/0x28c [ 40.272948][ T4364] el0_svc_common+0x13c/0x258 [ 40.273920][ T4364] do_el0_svc+0x5c/0x140 [ 40.274796][ T4364] el0_svc+0x78/0x1d0 [ 40.275619][ T4364] el0t_64_sync_handler+0xcc/0xe4 [ 40.276695][ T4364] el0t_64_sync+0x1a0/0x1a4 [ 40.460114][ T4422] loop0: detected capacity change from 0 to 32768 [ 40.467407][ T4422] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4422) [ 40.474807][ T4422] BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm [ 40.476701][ T4422] BTRFS info (device loop0): force clearing of disk cache [ 40.478165][ T4422] BTRFS info (device loop0): setting nodatasum [ 40.479294][ T4422] BTRFS info (device loop0): allowing degraded mounts [ 40.480563][ T4422] BTRFS info (device loop0): enabling disk space caching [ 40.481944][ T4422] BTRFS info (device loop0): disk space caching is enabled [ 40.483585][ T4422] BTRFS info (device loop0): has skinny extents [ 40.532575][ T4422] BTRFS info (device loop0): enabling ssd optimizations [ 40.535120][ T4422] BTRFS info (device loop0): clearing free space tree [ 40.536624][ T4422] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 40.538768][ T4422] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 40.543524][ T4422] BTRFS info (device loop0): checking UUID tree [ 40.547617][ T4422] FAULT_INJECTION: forcing a failure. [ 40.547617][ T4422] name failslab, interval 1, probability 0, space 0, times 0 [ 40.550273][ T4422] CPU: 1 PID: 4422 Comm: syz-executor.0 Not tainted syzkaller #0 [ 40.551712][ T4422] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 40.553623][ T4422] Call trace: [ 40.554258][ T4422] dump_backtrace+0x0/0x458 [ 40.555151][ T4422] show_stack+0x2c/0x3c [ 40.556046][ T4422] __dump_stack+0x30/0x40 [ 40.556929][ T4422] dump_stack_lvl+0xf4/0x15c [ 40.557873][ T4422] dump_stack+0x1c/0x5c [ 40.558854][ T4422] should_fail+0x3c8/0x520 [ 40.559798][ T4422] __should_failslab+0xbc/0x10c [ 40.560923][ T4422] should_failslab+0x10/0x28 [ 40.561973][ T4422] slab_pre_alloc_hook+0x64/0xe8 [ 40.563063][ T4422] kmem_cache_alloc_trace+0x98/0x3f0 [ 40.564210][ T4422] bdi_split_work_to_wbs+0x3f8/0x77c [ 40.565452][ T4422] __writeback_inodes_sb_nr+0x1ac/0x224 [ 40.566779][ T4422] writeback_inodes_sb+0x78/0x8c [ 40.567969][ T4422] sync_filesystem+0xa0/0x218 [ 40.569055][ T4422] btrfs_remount+0x190/0x12ac [ 40.570119][ T4422] legacy_reconfigure+0xfc/0x114 [ 40.571170][ T4422] reconfigure_super+0x1d0/0x6c4 [ 40.572254][ T4422] path_mount+0xd20/0xfe8 [ 40.573171][ T4422] __arm64_sys_mount+0x488/0x5f8 [ 40.574211][ T4422] invoke_syscall+0x98/0x28c [ 40.575077][ T4422] el0_svc_common+0x13c/0x258 [ 40.576002][ T4422] do_el0_svc+0x5c/0x140 [ 40.576861][ T4422] el0_svc+0x78/0x1d0 [ 40.577670][ T4422] el0t_64_sync_handler+0xcc/0xe4 [ 40.578741][ T4422] el0t_64_sync+0x1a0/0x1a4 [ 40.725481][ T4463] Bluetooth: hci0: command 0x0409 tx timeout [ 40.787302][ T4482] loop0: detected capacity change from 0 to 32768 [ 40.798873][ T4482] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4482) [ 40.812722][ T4482] BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm [ 40.814487][ T4482] BTRFS info (device loop0): force clearing of disk cache [ 40.824731][ T4482] BTRFS info (device loop0): setting nodatasum [ 40.825916][ T4482] BTRFS info (device loop0): allowing degraded mounts [ 40.827469][ T4482] BTRFS info (device loop0): enabling disk space caching [ 40.828998][ T4482] BTRFS info (device loop0): disk space caching is enabled [ 40.830535][ T4482] BTRFS info (device loop0): has skinny extents [ 40.889957][ T4482] BTRFS info (device loop0): enabling ssd optimizations [ 40.892371][ T4482] BTRFS info (device loop0): clearing free space tree [ 40.893992][ T4482] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 40.897229][ T4482] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 40.901613][ T4482] BTRFS info (device loop0): checking UUID tree [ 40.905620][ T4482] FAULT_INJECTION: forcing a failure. [ 40.905620][ T4482] name failslab, interval 1, probability 0, space 0, times 0 [ 40.909282][ T4482] CPU: 0 PID: 4482 Comm: syz-executor.0 Not tainted syzkaller #0 [ 40.910887][ T4482] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 40.913089][ T4482] Call trace: [ 40.913766][ T4482] dump_backtrace+0x0/0x458 [ 40.914719][ T4482] show_stack+0x2c/0x3c [ 40.915702][ T4482] __dump_stack+0x30/0x40 [ 40.916722][ T4482] dump_stack_lvl+0xf4/0x15c [ 40.917819][ T4482] dump_stack+0x1c/0x5c [ 40.918756][ T4482] should_fail+0x3c8/0x520 [ 40.919711][ T4482] __should_failslab+0xbc/0x10c [ 40.920697][ T4482] should_failslab+0x10/0x28 [ 40.921637][ T4482] slab_pre_alloc_hook+0x64/0xe8 [ 40.922679][ T4482] kmem_cache_alloc_trace+0x98/0x3f0 [ 40.923794][ T4482] legacy_init_fs_context+0x5c/0xc8 [ 40.924938][ T4482] alloc_fs_context+0x54c/0x7d0 [ 40.925949][ T4482] fs_context_for_reconfigure+0x7c/0x94 [ 40.927121][ T4482] path_mount+0xc50/0xfe8 [ 40.928051][ T4482] __arm64_sys_mount+0x488/0x5f8 [ 40.929135][ T4482] invoke_syscall+0x98/0x28c [ 40.930140][ T4482] el0_svc_common+0x13c/0x258 [ 40.931160][ T4482] do_el0_svc+0x5c/0x140 [ 40.932065][ T4482] el0_svc+0x78/0x1d0 [ 40.932885][ T4482] el0t_64_sync_handler+0xcc/0xe4 [ 40.933939][ T4482] el0t_64_sync+0x1a0/0x1a4 [ 41.156878][ T4539] loop0: detected capacity change from 0 to 32768 [ 41.161355][ T4539] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4539) [ 41.167023][ T4539] BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm [ 41.169087][ T4539] BTRFS info (device loop0): force clearing of disk cache [ 41.170679][ T4539] BTRFS info (device loop0): setting nodatasum [ 41.172113][ T4539] BTRFS info (device loop0): allowing degraded mounts [ 41.173698][ T4539] BTRFS info (device loop0): enabling disk space caching [ 41.175910][ T4539] BTRFS info (device loop0): disk space caching is enabled [ 41.177541][ T4539] BTRFS info (device loop0): has skinny extents [ 41.189623][ T4539] BTRFS info (device loop0): enabling ssd optimizations [ 41.191704][ T4539] BTRFS info (device loop0): clearing free space tree [ 41.193389][ T4539] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 41.196328][ T4539] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 41.200691][ T4539] BTRFS info (device loop0): checking UUID tree [ 41.204655][ T4539] FAULT_INJECTION: forcing a failure. [ 41.204655][ T4539] name failslab, interval 1, probability 0, space 0, times 0 [ 41.208490][ T4539] CPU: 0 PID: 4539 Comm: syz-executor.0 Not tainted syzkaller #0 [ 41.210033][ T4539] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 41.211981][ T4539] Call trace: [ 41.212647][ T4539] dump_backtrace+0x0/0x458 [ 41.213494][ T4539] show_stack+0x2c/0x3c [ 41.214280][ T4539] __dump_stack+0x30/0x40 [ 41.215106][ T4539] dump_stack_lvl+0xf4/0x15c [ 41.215990][ T4539] dump_stack+0x1c/0x5c [ 41.216807][ T4539] should_fail+0x3c8/0x520 [ 41.217687][ T4539] __should_failslab+0xbc/0x10c [ 41.218704][ T4539] should_failslab+0x10/0x28 [ 41.219647][ T4539] slab_pre_alloc_hook+0x64/0xe8 [ 41.220618][ T4539] kmem_cache_alloc+0x94/0x3d8 [ 41.221556][ T4539] start_transaction+0x530/0x1438 [ 41.222606][ T4539] btrfs_attach_transaction_barrier+0x30/0xac [ 41.224068][ T4539] btrfs_sync_fs+0x13c/0xb2c [ 41.225038][ T4539] sync_filesystem+0x1a0/0x218 [ 41.226111][ T4539] btrfs_remount+0x190/0x12ac [ 41.227044][ T4539] legacy_reconfigure+0xfc/0x114 [ 41.228065][ T4539] reconfigure_super+0x1d0/0x6c4 [ 41.229094][ T4539] path_mount+0xd20/0xfe8 [ 41.229979][ T4539] __arm64_sys_mount+0x488/0x5f8 [ 41.231133][ T4539] invoke_syscall+0x98/0x28c [ 41.232179][ T4539] el0_svc_common+0x13c/0x258 [ 41.233147][ T4539] do_el0_svc+0x5c/0x140 [ 41.234012][ T4539] el0_svc+0x78/0x1d0 [ 41.234809][ T4539] el0t_64_sync_handler+0xcc/0xe4 [ 41.235805][ T4539] el0t_64_sync+0x1a0/0x1a4 [ 41.428264][ T4568] loop0: detected capacity change from 0 to 32768 [ 41.432545][ T4568] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4568) [ 41.438338][ T4568] BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm [ 41.440420][ T4568] BTRFS info (device loop0): force clearing of disk cache [ 41.441824][ T4568] BTRFS info (device loop0): setting nodatasum [ 41.442971][ T4568] BTRFS info (device loop0): allowing degraded mounts [ 41.444294][ T4568] BTRFS info (device loop0): enabling disk space caching [ 41.447615][ T4568] BTRFS info (device loop0): disk space caching is enabled [ 41.449026][ T4568] BTRFS info (device loop0): has skinny extents [ 41.461319][ T4568] BTRFS info (device loop0): enabling ssd optimizations [ 41.463504][ T4568] BTRFS info (device loop0): clearing free space tree [ 41.465441][ T4568] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 41.467651][ T4568] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 41.472200][ T4568] BTRFS info (device loop0): checking UUID tree [ 41.480683][ T4568] FAULT_INJECTION: forcing a failure. [ 41.480683][ T4568] name failslab, interval 1, probability 0, space 0, times 0 [ 41.483287][ T4568] CPU: 1 PID: 4568 Comm: syz-executor.0 Not tainted syzkaller #0 [ 41.484829][ T4568] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 41.486923][ T4568] Call trace: [ 41.487609][ T4568] dump_backtrace+0x0/0x458 [ 41.488566][ T4568] show_stack+0x2c/0x3c [ 41.489365][ T4568] __dump_stack+0x30/0x40 [ 41.490281][ T4568] dump_stack_lvl+0xf4/0x15c [ 41.491231][ T4568] dump_stack+0x1c/0x5c [ 41.492055][ T4568] should_fail+0x3c8/0x520 [ 41.492980][ T4568] __should_failslab+0xbc/0x10c [ 41.493991][ T4568] should_failslab+0x10/0x28 [ 41.494915][ T4568] slab_pre_alloc_hook+0x64/0xe8 [ 41.495972][ T4568] kmem_cache_alloc+0x94/0x3d8 [ 41.496929][ T4568] start_transaction+0x530/0x1438 [ 41.497961][ T4568] btrfs_attach_transaction_barrier+0x30/0xac [ 41.499199][ T4568] btrfs_sync_fs+0x13c/0xb2c [ 41.500128][ T4568] sync_filesystem+0x1a0/0x218 [ 41.501115][ T4568] btrfs_remount+0x190/0x12ac [ 41.502113][ T4568] legacy_reconfigure+0xfc/0x114 [ 41.503126][ T4568] reconfigure_super+0x1d0/0x6c4 [ 41.504148][ T4568] path_mount+0xd20/0xfe8 [ 41.505034][ T4568] __arm64_sys_mount+0x488/0x5f8 [ 41.506037][ T4568] invoke_syscall+0x98/0x28c [ 41.506946][ T4568] el0_svc_common+0x13c/0x258 [ 41.507919][ T4568] do_el0_svc+0x5c/0x140 [ 41.508786][ T4568] el0_svc+0x78/0x1d0 [ 41.509632][ T4568] el0t_64_sync_handler+0xcc/0xe4 [ 41.510696][ T4568] el0t_64_sync+0x1a0/0x1a4 [ 41.706563][ T4591] loop0: detected capacity change from 0 to 32768 [ 41.709666][ T4591] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4591) [ 41.714217][ T4591] BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm [ 41.716513][ T4591] BTRFS info (device loop0): force clearing of disk cache [ 41.717952][ T4591] BTRFS info (device loop0): setting nodatasum [ 41.719338][ T4591] BTRFS info (device loop0): allowing degraded mounts [ 41.722212][ T4591] BTRFS info (device loop0): enabling disk space caching [ 41.723738][ T4591] BTRFS info (device loop0): disk space caching is enabled [ 41.726025][ T4591] BTRFS info (device loop0): has skinny extents [ 41.735233][ T4591] BTRFS info (device loop0): enabling ssd optimizations [ 41.737149][ T4591] BTRFS info (device loop0): clearing free space tree [ 41.738574][ T4591] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 41.740597][ T4591] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 41.745409][ T4591] BTRFS info (device loop0): checking UUID tree [ 41.753997][ T4591] FAULT_INJECTION: forcing a failure. [ 41.753997][ T4591] name failslab, interval 1, probability 0, space 0, times 0 [ 41.757188][ T4591] CPU: 1 PID: 4591 Comm: syz-executor.0 Not tainted syzkaller #0 [ 41.758753][ T4591] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 41.760698][ T4591] Call trace: [ 41.761419][ T4591] dump_backtrace+0x0/0x458 [ 41.762345][ T4591] show_stack+0x2c/0x3c [ 41.763220][ T4591] __dump_stack+0x30/0x40 [ 41.764177][ T4591] dump_stack_lvl+0xf4/0x15c [ 41.765153][ T4591] dump_stack+0x1c/0x5c [ 41.766050][ T4591] should_fail+0x3c8/0x520 [ 41.766992][ T4591] __should_failslab+0xbc/0x10c [ 41.768029][ T4591] should_failslab+0x10/0x28 [ 41.769022][ T4591] slab_pre_alloc_hook+0x64/0xe8 [ 41.770045][ T4591] kmem_cache_alloc+0x94/0x3d8 [ 41.771036][ T4591] start_transaction+0x530/0x1438 [ 41.772056][ T4591] btrfs_attach_transaction_barrier+0x30/0xac [ 41.773251][ T4591] btrfs_sync_fs+0x13c/0xb2c [ 41.774173][ T4591] sync_filesystem+0x1a0/0x218 [ 41.775144][ T4591] btrfs_remount+0x190/0x12ac [ 41.776116][ T4591] legacy_reconfigure+0xfc/0x114 [ 41.777115][ T4591] reconfigure_super+0x1d0/0x6c4 [ 41.778048][ T4591] path_mount+0xd20/0xfe8 [ 41.778925][ T4591] __arm64_sys_mount+0x488/0x5f8 [ 41.779938][ T4591] invoke_syscall+0x98/0x28c [ 41.780899][ T4591] el0_svc_common+0x13c/0x258 [ 41.781854][ T4591] do_el0_svc+0x5c/0x140 [ 41.782733][ T4591] el0_svc+0x78/0x1d0 [ 41.783534][ T4591] el0t_64_sync_handler+0xcc/0xe4 [ 41.784540][ T4591] el0t_64_sync+0x1a0/0x1a4 [ 41.992452][ T4618] loop0: detected capacity change from 0 to 32768 [ 41.995757][ T4618] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4618) [ 42.000174][ T4618] BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm [ 42.002127][ T4618] BTRFS info (device loop0): force clearing of disk cache [ 42.003549][ T4618] BTRFS info (device loop0): setting nodatasum [ 42.005453][ T4618] BTRFS info (device loop0): allowing degraded mounts [ 42.006898][ T4618] BTRFS info (device loop0): enabling disk space caching [ 42.008308][ T4618] BTRFS info (device loop0): disk space caching is enabled [ 42.009614][ T4618] BTRFS info (device loop0): has skinny extents [ 42.023541][ T4618] BTRFS info (device loop0): enabling ssd optimizations [ 42.026294][ T4618] BTRFS info (device loop0): clearing free space tree [ 42.027820][ T4618] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 42.029760][ T4618] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 42.034244][ T4618] BTRFS info (device loop0): checking UUID tree [ 42.037791][ T4618] FAULT_INJECTION: forcing a failure. [ 42.037791][ T4618] name failslab, interval 1, probability 0, space 0, times 0 [ 42.040456][ T4618] CPU: 0 PID: 4618 Comm: syz-executor.0 Not tainted syzkaller #0 [ 42.041936][ T4618] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 42.043959][ T4618] Call trace: [ 42.044651][ T4618] dump_backtrace+0x0/0x458 [ 42.045586][ T4618] show_stack+0x2c/0x3c [ 42.046440][ T4618] __dump_stack+0x30/0x40 [ 42.047319][ T4618] dump_stack_lvl+0xf4/0x15c [ 42.048252][ T4618] dump_stack+0x1c/0x5c [ 42.049081][ T4618] should_fail+0x3c8/0x520 [ 42.049977][ T4618] __should_failslab+0xbc/0x10c [ 42.050972][ T4618] should_failslab+0x10/0x28 [ 42.051917][ T4618] slab_pre_alloc_hook+0x64/0xe8 [ 42.052936][ T4618] kmem_cache_alloc_trace+0x98/0x3f0 [ 42.054015][ T4618] bdi_split_work_to_wbs+0x3f8/0x77c [ 42.055027][ T4618] __writeback_inodes_sb_nr+0x1ac/0x224 [ 42.056026][ T4618] writeback_inodes_sb+0x78/0x8c [ 42.057047][ T4618] sync_filesystem+0xa0/0x218 [ 42.058025][ T4618] btrfs_remount+0x190/0x12ac [ 42.058989][ T4618] legacy_reconfigure+0xfc/0x114 [ 42.060012][ T4618] reconfigure_super+0x1d0/0x6c4 [ 42.061016][ T4618] path_mount+0xd20/0xfe8 [ 42.061881][ T4618] __arm64_sys_mount+0x488/0x5f8 [ 42.062924][ T4618] invoke_syscall+0x98/0x28c [ 42.063881][ T4618] el0_svc_common+0x13c/0x258 [ 42.064818][ T4618] do_el0_svc+0x5c/0x140 [ 42.065688][ T4618] el0_svc+0x78/0x1d0 [ 42.066508][ T4618] el0t_64_sync_handler+0xcc/0xe4 [ 42.067515][ T4618] el0t_64_sync+0x1a0/0x1a4 [ 42.250541][ T4640] loop0: detected capacity change from 0 to 32768 [ 42.253412][ T4640] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4640) [ 42.258133][ T4640] BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm [ 42.260514][ T4640] BTRFS info (device loop0): force clearing of disk cache [ 42.262036][ T4640] BTRFS info (device loop0): setting nodatasum [ 42.263384][ T4640] BTRFS info (device loop0): allowing degraded mounts [ 42.265367][ T4640] BTRFS info (device loop0): enabling disk space caching [ 42.266906][ T4640] BTRFS info (device loop0): disk space caching is enabled [ 42.268318][ T4640] BTRFS info (device loop0): has skinny extents [ 42.282233][ T4640] BTRFS info (device loop0): enabling ssd optimizations [ 42.284026][ T4640] BTRFS info (device loop0): clearing free space tree [ 42.286452][ T4640] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 42.288437][ T4640] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 42.292591][ T4640] BTRFS info (device loop0): checking UUID tree [ 42.295918][ T4640] FAULT_INJECTION: forcing a failure. [ 42.295918][ T4640] name failslab, interval 1, probability 0, space 0, times 0 [ 42.298326][ T4640] CPU: 0 PID: 4640 Comm: syz-executor.0 Not tainted syzkaller #0 [ 42.299773][ T4640] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 42.301712][ T4640] Call trace: [ 42.302325][ T4640] dump_backtrace+0x0/0x458 [ 42.303177][ T4640] show_stack+0x2c/0x3c [ 42.303970][ T4640] __dump_stack+0x30/0x40 [ 42.304826][ T4640] dump_stack_lvl+0xf4/0x15c [ 42.305794][ T4640] dump_stack+0x1c/0x5c [ 42.306667][ T4640] should_fail+0x3c8/0x520 [ 42.307595][ T4640] __should_failslab+0xbc/0x10c [ 42.308756][ T4640] should_failslab+0x10/0x28 [ 42.309768][ T4640] slab_pre_alloc_hook+0x64/0xe8 [ 42.310826][ T4640] kmem_cache_alloc+0x94/0x3d8 [ 42.311819][ T4640] start_transaction+0x530/0x1438 [ 42.312859][ T4640] btrfs_attach_transaction_barrier+0x30/0xac [ 42.314121][ T4640] btrfs_sync_fs+0x13c/0xb2c [ 42.315093][ T4640] sync_filesystem+0x1a0/0x218 [ 42.316062][ T4640] btrfs_remount+0x190/0x12ac [ 42.317018][ T4640] legacy_reconfigure+0xfc/0x114 [ 42.318040][ T4640] reconfigure_super+0x1d0/0x6c4 [ 42.319036][ T4640] path_mount+0xd20/0xfe8 [ 42.319916][ T4640] __arm64_sys_mount+0x488/0x5f8 [ 42.320910][ T4640] invoke_syscall+0x98/0x28c [ 42.321840][ T4640] el0_svc_common+0x13c/0x258 [ 42.322942][ T4640] do_el0_svc+0x5c/0x140 [ 42.323905][ T4640] el0_svc+0x78/0x1d0 [ 42.324755][ T4640] el0t_64_sync_handler+0xcc/0xe4 [ 42.325834][ T4640] el0t_64_sync+0x1a0/0x1a4 [ 42.500613][ T4665] loop0: detected capacity change from 0 to 32768 [ 42.503748][ T4665] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4665) [ 42.509205][ T4665] BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm [ 42.511226][ T4665] BTRFS info (device loop0): force clearing of disk cache [ 42.512814][ T4665] BTRFS info (device loop0): setting nodatasum [ 42.514118][ T4665] BTRFS info (device loop0): allowing degraded mounts [ 42.527444][ T4665] FAULT_INJECTION: forcing a failure. [ 42.527444][ T4665] name failslab, interval 1, probability 0, space 0, times 0 [ 42.530056][ T4665] CPU: 0 PID: 4665 Comm: syz-executor.0 Not tainted syzkaller #0 [ 42.531651][ T4665] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 42.533611][ T4665] Call trace: [ 42.534146][ T4665] dump_backtrace+0x0/0x458 [ 42.535168][ T4665] show_stack+0x2c/0x3c [ 42.536049][ T4665] __dump_stack+0x30/0x40 [ 42.537009][ T4665] dump_stack_lvl+0xf4/0x15c [ 42.537983][ T4665] dump_stack+0x1c/0x5c [ 42.538861][ T4665] should_fail+0x3c8/0x520 [ 42.539940][ T4665] __should_failslab+0xbc/0x10c [ 42.541113][ T4665] should_failslab+0x10/0x28 [ 42.542197][ T4665] slab_pre_alloc_hook+0x64/0xe8 [ 42.543377][ T4665] kmem_cache_alloc_trace+0x98/0x3f0 [ 42.544626][ T4665] legacy_init_fs_context+0x5c/0xc8 [ 42.545835][ T4665] alloc_fs_context+0x54c/0x7d0 [ 42.546905][ T4665] fs_context_for_reconfigure+0x7c/0x94 [ 42.548079][ T4665] path_mount+0xc50/0xfe8 [ 42.548959][ T4665] __arm64_sys_mount+0x488/0x5f8 [ 42.549995][ T4665] invoke_syscall+0x98/0x28c [ 42.550937][ T4665] el0_svc_common+0x13c/0x258 [ 42.551887][ T4665] do_el0_svc+0x5c/0x140 [ 42.552742][ T4665] el0_svc+0x78/0x1d0 [ 42.553536][ T4665] el0t_64_sync_handler+0xcc/0xe4 [ 42.554547][ T4665] el0t_64_sync+0x1a0/0x1a4 [ 42.755700][ T4688] loop0: detected capacity change from 0 to 32768 [ 42.758562][ T4688] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4688) [ 42.778377][ T4688] FAULT_INJECTION: forcing a failure. [ 42.778377][ T4688] name failslab, interval 1, probability 0, space 0, times 0 [ 42.781250][ T4688] CPU: 0 PID: 4688 Comm: syz-executor.0 Not tainted syzkaller #0 [ 42.782721][ T4688] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 42.784662][ T4688] Call trace: [ 42.785311][ T4688] dump_backtrace+0x0/0x458 [ 42.786327][ T4688] show_stack+0x2c/0x3c [ 42.787240][ T4688] __dump_stack+0x30/0x40 [ 42.788136][ T4688] dump_stack_lvl+0xf4/0x15c [ 42.789072][ T4688] dump_stack+0x1c/0x5c [ 42.789936][ T4688] should_fail+0x3c8/0x520 [ 42.790883][ T4688] __should_failslab+0xbc/0x10c [ 42.791880][ T4688] should_failslab+0x10/0x28 [ 42.792977][ T4688] slab_pre_alloc_hook+0x64/0xe8 [ 42.794067][ T4688] kmem_cache_alloc_trace+0x98/0x3f0 [ 42.795201][ T4688] bdi_split_work_to_wbs+0x3f8/0x77c [ 42.796427][ T4688] __writeback_inodes_sb_nr+0x1ac/0x224 [ 42.797719][ T4688] writeback_inodes_sb+0x78/0x8c [ 42.798706][ T4688] sync_filesystem+0xa0/0x218 [ 42.799728][ T4688] btrfs_remount+0x190/0x12ac [ 42.800663][ T4688] legacy_reconfigure+0xfc/0x114 [ 42.801647][ T4688] reconfigure_super+0x1d0/0x6c4 [ 42.802659][ T4688] path_mount+0xd20/0xfe8 [ 42.803486][ T4688] __arm64_sys_mount+0x488/0x5f8 [ 42.804540][ T4688] invoke_syscall+0x98/0x28c [ 42.805179][ T4468] Bluetooth: hci0: command 0x041b tx timeout [ 42.805441][ T4688] el0_svc_common+0x13c/0x258 [ 42.807654][ T4688] do_el0_svc+0x5c/0x140 [ 42.808519][ T4688] el0_svc+0x78/0x1d0 [ 42.809349][ T4688] el0t_64_sync_handler+0xcc/0xe4 [ 42.810500][ T4688] el0t_64_sync+0x1a0/0x1a4 [ 43.004336][ T4710] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4710) [ 43.025097][ T4710] FAULT_INJECTION: forcing a failure. [ 43.025097][ T4710] name failslab, interval 1, probability 0, space 0, times 0 [ 43.027920][ T4710] CPU: 0 PID: 4710 Comm: syz-executor.0 Not tainted syzkaller #0 [ 43.029631][ T4710] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 43.031952][ T4710] Call trace: [ 43.032673][ T4710] dump_backtrace+0x0/0x458 [ 43.033688][ T4710] show_stack+0x2c/0x3c [ 43.034608][ T4710] __dump_stack+0x30/0x40 [ 43.035572][ T4710] dump_stack_lvl+0xf4/0x15c [ 43.036567][ T4710] dump_stack+0x1c/0x5c [ 43.037468][ T4710] should_fail+0x3c8/0x520 [ 43.038361][ T4710] __should_failslab+0xbc/0x10c [ 43.039366][ T4710] should_failslab+0x10/0x28 [ 43.040296][ T4710] slab_pre_alloc_hook+0x64/0xe8 [ 43.041303][ T4710] kmem_cache_alloc_trace+0x98/0x3f0 [ 43.042382][ T4710] legacy_init_fs_context+0x5c/0xc8 [ 43.043456][ T4710] alloc_fs_context+0x54c/0x7d0 [ 43.044404][ T4710] fs_context_for_reconfigure+0x7c/0x94 [ 43.045517][ T4710] path_mount+0xc50/0xfe8 [ 43.046385][ T4710] __arm64_sys_mount+0x488/0x5f8 [ 43.047372][ T4710] invoke_syscall+0x98/0x28c [ 43.048301][ T4710] el0_svc_common+0x13c/0x258 [ 43.049311][ T4710] do_el0_svc+0x5c/0x140 [ 43.050215][ T4710] el0_svc+0x78/0x1d0 [ 43.051018][ T4710] el0t_64_sync_handler+0xcc/0xe4 [ 43.052064][ T4710] el0t_64_sync+0x1a0/0x1a4 [ 43.241441][ T4733] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4733) [ 43.259984][ T4733] FAULT_INJECTION: forcing a failure. [ 43.259984][ T4733] name failslab, interval 1, probability 0, space 0, times 0 [ 43.262509][ T4733] CPU: 0 PID: 4733 Comm: syz-executor.0 Not tainted syzkaller #0 [ 43.264072][ T4733] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 43.266270][ T4733] Call trace: [ 43.266993][ T4733] dump_backtrace+0x0/0x458 [ 43.267943][ T4733] show_stack+0x2c/0x3c [ 43.268845][ T4733] __dump_stack+0x30/0x40 [ 43.269799][ T4733] dump_stack_lvl+0xf4/0x15c [ 43.270777][ T4733] dump_stack+0x1c/0x5c [ 43.271655][ T4733] should_fail+0x3c8/0x520 [ 43.272578][ T4733] __should_failslab+0xbc/0x10c [ 43.273591][ T4733] should_failslab+0x10/0x28 [ 43.274543][ T4733] slab_pre_alloc_hook+0x64/0xe8 [ 43.275590][ T4733] kmem_cache_alloc+0x94/0x3d8 [ 43.276570][ T4733] start_transaction+0x530/0x1438 [ 43.277632][ T4733] btrfs_attach_transaction_barrier+0x30/0xac [ 43.278926][ T4733] btrfs_sync_fs+0x13c/0xb2c [ 43.279823][ T4733] sync_filesystem+0x1a0/0x218 [ 43.280784][ T4733] btrfs_remount+0x190/0x12ac [ 43.281726][ T4733] legacy_reconfigure+0xfc/0x114 [ 43.282723][ T4733] reconfigure_super+0x1d0/0x6c4 [ 43.283737][ T4733] path_mount+0xd20/0xfe8 [ 43.284618][ T4733] __arm64_sys_mount+0x488/0x5f8 [ 43.285602][ T4733] invoke_syscall+0x98/0x28c [ 43.286515][ T4733] el0_svc_common+0x13c/0x258 [ 43.287628][ T4733] do_el0_svc+0x5c/0x140 [ 43.288596][ T4733] el0_svc+0x78/0x1d0 [ 43.289530][ T4733] el0t_64_sync_handler+0xcc/0xe4 [ 43.290669][ T4733] el0t_64_sync+0x1a0/0x1a4 [ 43.501116][ T4755] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4755) [ 43.528761][ T4755] FAULT_INJECTION: forcing a failure. [ 43.528761][ T4755] name fail_page_alloc, interval 1, probability 0, space 0, times 1 [ 43.531317][ T4755] CPU: 1 PID: 4755 Comm: syz-executor.0 Not tainted syzkaller #0 [ 43.532908][ T4755] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 43.534812][ T4755] Call trace: [ 43.535464][ T4755] dump_backtrace+0x0/0x458 [ 43.536375][ T4755] show_stack+0x2c/0x3c [ 43.537218][ T4755] __dump_stack+0x30/0x40 [ 43.538100][ T4755] dump_stack_lvl+0xf4/0x15c [ 43.539026][ T4755] dump_stack+0x1c/0x5c [ 43.539839][ T4755] should_fail+0x3c8/0x520 [ 43.540729][ T4755] should_fail_alloc_page+0x74/0xa8 [ 43.541787][ T4755] prepare_alloc_pages+0x160/0x460 [ 43.542770][ T4755] __alloc_pages+0x108/0x474 [ 43.543642][ T4755] alloc_pages+0x34c/0x5c0 [ 43.544569][ T4755] stack_depot_save+0x344/0x49c [ 43.545563][ T4755] __kasan_kmalloc+0xcc/0xf0 [ 43.546528][ T4755] __kmalloc_node+0x2b0/0x50c [ 43.547517][ T4755] memcg_alloc_page_obj_cgroups+0x80/0x16c [ 43.548677][ T4755] slab_post_alloc_hook+0xb8/0x3f8 [ 43.549917][ T4755] kmem_cache_alloc_trace+0x1e0/0x3f0 [ 43.551015][ T4755] legacy_init_fs_context+0x5c/0xc8 [ 43.552122][ T4755] alloc_fs_context+0x54c/0x7d0 [ 43.553233][ T4755] fs_context_for_reconfigure+0x7c/0x94 [ 43.554421][ T4755] path_mount+0xc50/0xfe8 [ 43.555385][ T4755] __arm64_sys_mount+0x488/0x5f8 [ 43.556465][ T4755] invoke_syscall+0x98/0x28c [ 43.557453][ T4755] el0_svc_common+0x13c/0x258 [ 43.558447][ T4755] do_el0_svc+0x5c/0x140 [ 43.559354][ T4755] el0_svc+0x78/0x1d0 [ 43.560208][ T4755] el0t_64_sync_handler+0xcc/0xe4 [ 43.561238][ T4755] el0t_64_sync+0x1a0/0x1a4 [ 43.765678][ T4777] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4777) [ 43.792521][ T4777] FAULT_INJECTION: forcing a failure. [ 43.792521][ T4777] name failslab, interval 1, probability 0, space 0, times 0 [ 43.795692][ T4777] CPU: 1 PID: 4777 Comm: syz-executor.0 Not tainted syzkaller #0 [ 43.797225][ T4777] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 43.799647][ T4777] Call trace: [ 43.800431][ T4777] dump_backtrace+0x0/0x458 [ 43.801465][ T4777] show_stack+0x2c/0x3c [ 43.802377][ T4777] __dump_stack+0x30/0x40 [ 43.803357][ T4777] dump_stack_lvl+0xf4/0x15c [ 43.804468][ T4777] dump_stack+0x1c/0x5c [ 43.805461][ T4777] should_fail+0x3c8/0x520 [ 43.806475][ T4777] __should_failslab+0xbc/0x10c [ 43.807578][ T4777] should_failslab+0x10/0x28 [ 43.808691][ T4777] slab_pre_alloc_hook+0x64/0xe8 [ 43.809769][ T4777] kmem_cache_alloc+0x94/0x3d8 [ 43.810736][ T4777] start_transaction+0x530/0x1438 [ 43.811838][ T4777] btrfs_attach_transaction_barrier+0x30/0xac [ 43.813202][ T4777] btrfs_sync_fs+0x13c/0xb2c [ 43.814153][ T4777] sync_filesystem+0x1a0/0x218 [ 43.815179][ T4777] btrfs_remount+0x190/0x12ac [ 43.816152][ T4777] legacy_reconfigure+0xfc/0x114 [ 43.817157][ T4777] reconfigure_super+0x1d0/0x6c4 [ 43.818181][ T4777] path_mount+0xd20/0xfe8 [ 43.819106][ T4777] __arm64_sys_mount+0x488/0x5f8 [ 43.820073][ T4777] invoke_syscall+0x98/0x28c [ 43.821008][ T4777] el0_svc_common+0x13c/0x258 [ 43.821963][ T4777] do_el0_svc+0x5c/0x140 [ 43.822852][ T4777] el0_svc+0x78/0x1d0 [ 43.823650][ T4777] el0t_64_sync_handler+0xcc/0xe4 [ 43.824722][ T4777] el0t_64_sync+0x1a0/0x1a4 1970/01/01 00:00:43 executed programs: 14 [ 44.024508][ T4800] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4800) [ 44.042565][ T4800] FAULT_INJECTION: forcing a failure. [ 44.042565][ T4800] name failslab, interval 1, probability 0, space 0, times 0 [ 44.046649][ T4800] CPU: 1 PID: 4800 Comm: syz-executor.0 Not tainted syzkaller #0 [ 44.048178][ T4800] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 44.050348][ T4800] Call trace: [ 44.051053][ T4800] dump_backtrace+0x0/0x458 [ 44.051992][ T4800] show_stack+0x2c/0x3c [ 44.052929][ T4800] __dump_stack+0x30/0x40 [ 44.053901][ T4800] dump_stack_lvl+0xf4/0x15c [ 44.054906][ T4800] dump_stack+0x1c/0x5c [ 44.055833][ T4800] should_fail+0x3c8/0x520 [ 44.056760][ T4800] __should_failslab+0xbc/0x10c [ 44.057791][ T4800] should_failslab+0x10/0x28 [ 44.058760][ T4800] slab_pre_alloc_hook+0x64/0xe8 [ 44.059793][ T4800] kmem_cache_alloc_trace+0x98/0x3f0 [ 44.060887][ T4800] bdi_split_work_to_wbs+0x3f8/0x77c [ 44.061973][ T4800] __writeback_inodes_sb_nr+0x1ac/0x224 [ 44.063119][ T4800] writeback_inodes_sb+0x78/0x8c [ 44.064048][ T4800] sync_filesystem+0xa0/0x218 [ 44.064994][ T4800] btrfs_remount+0x190/0x12ac [ 44.065959][ T4800] legacy_reconfigure+0xfc/0x114 [ 44.067023][ T4800] reconfigure_super+0x1d0/0x6c4 [ 44.068028][ T4800] path_mount+0xd20/0xfe8 [ 44.068884][ T4800] __arm64_sys_mount+0x488/0x5f8 [ 44.069882][ T4800] invoke_syscall+0x98/0x28c [ 44.070823][ T4800] el0_svc_common+0x13c/0x258 [ 44.071799][ T4800] do_el0_svc+0x5c/0x140 [ 44.072694][ T4800] el0_svc+0x78/0x1d0 [ 44.073501][ T4800] el0t_64_sync_handler+0xcc/0xe4 [ 44.074531][ T4800] el0t_64_sync+0x1a0/0x1a4 [ 44.256499][ T4822] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4822) [ 44.278918][ T4822] FAULT_INJECTION: forcing a failure. [ 44.278918][ T4822] name failslab, interval 1, probability 0, space 0, times 0 [ 44.281783][ T4822] CPU: 0 PID: 4822 Comm: syz-executor.0 Not tainted syzkaller #0 [ 44.283378][ T4822] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 44.285528][ T4822] Call trace: [ 44.286217][ T4822] dump_backtrace+0x0/0x458 [ 44.287197][ T4822] show_stack+0x2c/0x3c [ 44.288079][ T4822] __dump_stack+0x30/0x40 [ 44.288919][ T4822] dump_stack_lvl+0xf4/0x15c [ 44.289835][ T4822] dump_stack+0x1c/0x5c [ 44.290708][ T4822] should_fail+0x3c8/0x520 [ 44.291799][ T4822] __should_failslab+0xbc/0x10c [ 44.293004][ T4822] should_failslab+0x10/0x28 [ 44.294111][ T4822] slab_pre_alloc_hook+0x64/0xe8 [ 44.295270][ T4822] kmem_cache_alloc+0x94/0x3d8 [ 44.296323][ T4822] btrfs_alloc_path+0x5c/0x68 [ 44.297332][ T4822] __btrfs_run_delayed_items+0x88/0x478 [ 44.298522][ T4822] btrfs_run_delayed_items+0x24/0x34 [ 44.299643][ T4822] btrfs_commit_transaction+0x7f8/0x30ac [ 44.300823][ T4822] btrfs_sync_fs+0x240/0xb2c [ 44.301794][ T4822] sync_filesystem+0x1a0/0x218 [ 44.302811][ T4822] btrfs_remount+0x190/0x12ac [ 44.303812][ T4822] legacy_reconfigure+0xfc/0x114 [ 44.304815][ T4822] reconfigure_super+0x1d0/0x6c4 [ 44.305853][ T4822] path_mount+0xd20/0xfe8 [ 44.306743][ T4822] __arm64_sys_mount+0x488/0x5f8 [ 44.307750][ T4822] invoke_syscall+0x98/0x28c [ 44.308687][ T4822] el0_svc_common+0x13c/0x258 [ 44.309628][ T4822] do_el0_svc+0x5c/0x140 [ 44.310505][ T4822] el0_svc+0x78/0x1d0 [ 44.311348][ T4822] el0t_64_sync_handler+0xcc/0xe4 [ 44.312414][ T4822] el0t_64_sync+0x1a0/0x1a4 [ 44.315209][ T4822] BTRFS warning (device loop0): Skipping commit of aborted transaction. [ 44.317079][ T4822] ------------[ cut here ]------------ [ 44.318180][ T4822] WARNING: CPU: 0 PID: 4822 at fs/btrfs/transaction.c:2021 btrfs_commit_transaction+0x1e20/0x30ac [ 44.320346][ T4822] Modules linked in: [ 44.321138][ T4822] CPU: 0 PID: 4822 Comm: syz-executor.0 Not tainted syzkaller #0 [ 44.322715][ T4822] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 44.324785][ T4822] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 44.326300][ T4822] pc : btrfs_commit_transaction+0x1e20/0x30ac [ 44.327472][ T4822] lr : btrfs_commit_transaction+0x1e20/0x30ac [ 44.328678][ T4822] sp : ffff800020c575e0 [ 44.329565][ T4822] x29: ffff800020c57820 x28: ffff0000d24a8790 x27: dfff800000000000 [ 44.331295][ T4822] x26: ffff70000418aed4 x25: ffff0000d3956328 x24: ffff0000dba919d0 [ 44.333115][ T4822] x23: 00000000fffffff4 x22: ffff0000d91fb000 x21: ffff0000dba90000 [ 44.335029][ T4822] x20: 0000000000000000 x19: 1fffe0001a72ac65 x18: 0000000000000000 [ 44.336849][ T4822] x17: 0000000000000000 x16: ffff8000113710a0 x15: 0000000000000000 [ 44.338808][ T4822] x14: 0000000000000001 x13: 1fffe000341ca7ab x12: 0000000000000000 [ 44.340753][ T4822] x11: ff80800008300a7c x10: 0000000000000000 x9 : 1f262b0f38c9cc00 [ 44.342448][ T4822] x8 : 1f262b0f38c9cc00 x7 : 0000000000000001 x6 : 0000000000000001 [ 44.344130][ T4822] x5 : ffff800020c56ef8 x4 : ffff80001448f520 x3 : ffff800008510b80 [ 44.345814][ T4822] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 44.347469][ T4822] Call trace: [ 44.348132][ T4822] btrfs_commit_transaction+0x1e20/0x30ac [ 44.349332][ T4822] btrfs_sync_fs+0x240/0xb2c [ 44.350379][ T4822] sync_filesystem+0x1a0/0x218 [ 44.351514][ T4822] btrfs_remount+0x190/0x12ac [ 44.352553][ T4822] legacy_reconfigure+0xfc/0x114 [ 44.353651][ T4822] reconfigure_super+0x1d0/0x6c4 [ 44.354773][ T4822] path_mount+0xd20/0xfe8 [ 44.355743][ T4822] __arm64_sys_mount+0x488/0x5f8 [ 44.356835][ T4822] invoke_syscall+0x98/0x28c [ 44.357828][ T4822] el0_svc_common+0x13c/0x258 [ 44.358827][ T4822] do_el0_svc+0x5c/0x140 [ 44.359666][ T4822] el0_svc+0x78/0x1d0 [ 44.360463][ T4822] el0t_64_sync_handler+0xcc/0xe4 [ 44.361468][ T4822] el0t_64_sync+0x1a0/0x1a4 [ 44.362391][ T4822] irq event stamp: 81666 [ 44.363270][ T4822] hardirqs last enabled at (81665): [] __up_console_sem+0xb4/0xfc [ 44.365266][ T4822] hardirqs last disabled at (81666): [] el1_dbg+0x24/0x80 [ 44.367389][ T4822] softirqs last enabled at (81632): [] handle_softirqs+0xa70/0xc14 [ 44.369675][ T4822] softirqs last disabled at (81567): [] __irq_exit_rcu+0x240/0x434 [ 44.371844][ T4822] ---[ end trace 9e0292fa3ae15065 ]--- [ 44.373421][ T4822] BTRFS: error (device loop0) in cleanup_transaction:2021: errno=-12 Out of memory [ 44.375462][ T4822] BTRFS error (device loop0): Remounting read-write after error is not allowed [ 44.587771][ T4844] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4844) [ 44.605009][ T4844] FAULT_INJECTION: forcing a failure. [ 44.605009][ T4844] name failslab, interval 1, probability 0, space 0, times 0 [ 44.607540][ T4844] CPU: 1 PID: 4844 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 44.609375][ T4844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 44.611294][ T4844] Call trace: [ 44.611923][ T4844] dump_backtrace+0x0/0x458 [ 44.612770][ T4844] show_stack+0x2c/0x3c [ 44.613609][ T4844] __dump_stack+0x30/0x40 [ 44.614466][ T4844] dump_stack_lvl+0xf4/0x15c [ 44.615536][ T4844] dump_stack+0x1c/0x5c [ 44.616443][ T4844] should_fail+0x3c8/0x520 [ 44.617355][ T4844] __should_failslab+0xbc/0x10c [ 44.618333][ T4844] should_failslab+0x10/0x28 [ 44.619261][ T4844] slab_pre_alloc_hook+0x64/0xe8 [ 44.620255][ T4844] kmem_cache_alloc_trace+0x98/0x3f0 [ 44.621294][ T4844] bdi_split_work_to_wbs+0x3f8/0x77c [ 44.622406][ T4844] __writeback_inodes_sb_nr+0x1ac/0x224 [ 44.623563][ T4844] writeback_inodes_sb+0x78/0x8c [ 44.624540][ T4844] sync_filesystem+0xa0/0x218 [ 44.625543][ T4844] btrfs_remount+0x190/0x12ac [ 44.626488][ T4844] legacy_reconfigure+0xfc/0x114 [ 44.627524][ T4844] reconfigure_super+0x1d0/0x6c4 [ 44.628525][ T4844] path_mount+0xd20/0xfe8 [ 44.629414][ T4844] __arm64_sys_mount+0x488/0x5f8 [ 44.630404][ T4844] invoke_syscall+0x98/0x28c [ 44.631338][ T4844] el0_svc_common+0x13c/0x258 [ 44.632269][ T4844] do_el0_svc+0x5c/0x140 [ 44.633111][ T4844] el0_svc+0x78/0x1d0 [ 44.633908][ T4844] el0t_64_sync_handler+0xcc/0xe4 [ 44.634944][ T4844] el0t_64_sync+0x1a0/0x1a4 [ 44.822742][ T4866] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4866) [ 44.849239][ T4866] FAULT_INJECTION: forcing a failure. [ 44.849239][ T4866] name failslab, interval 1, probability 0, space 0, times 0 [ 44.852286][ T4866] CPU: 1 PID: 4866 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 44.854191][ T4866] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 44.856242][ T4866] Call trace: [ 44.856894][ T4866] dump_backtrace+0x0/0x458 [ 44.857834][ T4866] show_stack+0x2c/0x3c [ 44.858697][ T4866] __dump_stack+0x30/0x40 [ 44.859615][ T4866] dump_stack_lvl+0xf4/0x15c [ 44.860559][ T4866] dump_stack+0x1c/0x5c [ 44.861381][ T4866] should_fail+0x3c8/0x520 [ 44.862294][ T4866] __should_failslab+0xbc/0x10c [ 44.863338][ T4866] should_failslab+0x10/0x28 [ 44.864275][ T4866] slab_pre_alloc_hook+0x64/0xe8 [ 44.865295][ T4866] kmem_cache_alloc+0x94/0x3d8 [ 44.866269][ T4866] start_transaction+0x530/0x1438 [ 44.867334][ T4866] btrfs_attach_transaction_barrier+0x30/0xac [ 44.868565][ T4866] btrfs_sync_fs+0x13c/0xb2c [ 44.869512][ T4866] sync_filesystem+0x1a0/0x218 [ 44.870493][ T4866] btrfs_remount+0x190/0x12ac [ 44.871449][ T4866] legacy_reconfigure+0xfc/0x114 [ 44.872456][ T4866] reconfigure_super+0x1d0/0x6c4 [ 44.873486][ T4866] path_mount+0xd20/0xfe8 [ 44.874348][ T4866] __arm64_sys_mount+0x488/0x5f8 [ 44.875333][ T4866] invoke_syscall+0x98/0x28c [ 44.876272][ T4866] el0_svc_common+0x13c/0x258 [ 44.877218][ T4866] do_el0_svc+0x5c/0x140 [ 44.878082][ T4866] el0_svc+0x78/0x1d0 [ 44.878895][ T4866] el0t_64_sync_handler+0xcc/0xe4 [ 44.879941][ T4866] el0t_64_sync+0x1a0/0x1a4 [ 44.884944][ T21] Bluetooth: hci0: command 0x040f tx timeout [ 45.069983][ T4888] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4888) [ 45.096151][ T4888] FAULT_INJECTION: forcing a failure. [ 45.096151][ T4888] name failslab, interval 1, probability 0, space 0, times 0 [ 45.099004][ T4888] CPU: 0 PID: 4888 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 45.100903][ T4888] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 45.103123][ T4888] Call trace: [ 45.103844][ T4888] dump_backtrace+0x0/0x458 [ 45.104811][ T4888] show_stack+0x2c/0x3c [ 45.105696][ T4888] __dump_stack+0x30/0x40 [ 45.106601][ T4888] dump_stack_lvl+0xf4/0x15c [ 45.107601][ T4888] dump_stack+0x1c/0x5c [ 45.108474][ T4888] should_fail+0x3c8/0x520 [ 45.109427][ T4888] __should_failslab+0xbc/0x10c [ 45.110510][ T4888] should_failslab+0x10/0x28 [ 45.111463][ T4888] slab_pre_alloc_hook+0x64/0xe8 [ 45.112493][ T4888] kmem_cache_alloc+0x94/0x3d8 [ 45.113538][ T4888] getname_flags+0xb8/0x44c [ 45.114453][ T4888] getname+0x28/0x38 [ 45.115234][ T4888] do_sys_openat2+0xdc/0x3fc [ 45.116161][ T4888] __arm64_sys_openat+0x11c/0x150 [ 45.117184][ T4888] invoke_syscall+0x98/0x28c [ 45.118104][ T4888] el0_svc_common+0x13c/0x258 [ 45.119080][ T4888] do_el0_svc+0x5c/0x140 [ 45.119952][ T4888] el0_svc+0x78/0x1d0 [ 45.120810][ T4888] el0t_64_sync_handler+0xcc/0xe4 [ 45.121839][ T4888] el0t_64_sync+0x1a0/0x1a4 [ 45.338723][ T4910] set_capacity_and_notify: 9 callbacks suppressed [ 45.338732][ T4910] loop0: detected capacity change from 0 to 32768 [ 45.345350][ T4910] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4910) [ 45.352783][ T4910] btrfs_printk: 129 callbacks suppressed [ 45.352792][ T4910] BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm [ 45.356238][ T4910] BTRFS info (device loop0): force clearing of disk cache [ 45.357617][ T4910] BTRFS info (device loop0): setting nodatasum [ 45.358761][ T4910] BTRFS info (device loop0): allowing degraded mounts [ 45.360146][ T4910] BTRFS info (device loop0): enabling disk space caching [ 45.361624][ T4910] BTRFS info (device loop0): disk space caching is enabled [ 45.363199][ T4910] BTRFS info (device loop0): has skinny extents [ 45.375662][ T4910] BTRFS info (device loop0): enabling ssd optimizations [ 45.377570][ T4910] BTRFS info (device loop0): clearing free space tree [ 45.379015][ T4910] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 45.381244][ T4910] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 45.386323][ T4910] BTRFS info (device loop0): checking UUID tree [ 45.389214][ T4910] FAULT_INJECTION: forcing a failure. [ 45.389214][ T4910] name failslab, interval 1, probability 0, space 0, times 0 [ 45.391709][ T4910] CPU: 1 PID: 4910 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 45.393457][ T4910] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 45.395488][ T4910] Call trace: [ 45.396151][ T4910] dump_backtrace+0x0/0x458 [ 45.397077][ T4910] show_stack+0x2c/0x3c [ 45.397939][ T4910] __dump_stack+0x30/0x40 [ 45.398832][ T4910] dump_stack_lvl+0xf4/0x15c [ 45.400004][ T4910] dump_stack+0x1c/0x5c [ 45.400976][ T4910] should_fail+0x3c8/0x520 [ 45.402001][ T4910] __should_failslab+0xbc/0x10c [ 45.403213][ T4910] should_failslab+0x10/0x28 [ 45.404347][ T4910] slab_pre_alloc_hook+0x64/0xe8 [ 45.405444][ T4910] kmem_cache_alloc+0x94/0x3d8 [ 45.406530][ T4910] start_transaction+0x530/0x1438 [ 45.407635][ T4910] btrfs_attach_transaction_barrier+0x30/0xac [ 45.409105][ T4910] btrfs_sync_fs+0x13c/0xb2c [ 45.410206][ T4910] sync_filesystem+0x1a0/0x218 [ 45.411320][ T4910] btrfs_remount+0x190/0x12ac [ 45.412410][ T4910] legacy_reconfigure+0xfc/0x114 [ 45.413535][ T4910] reconfigure_super+0x1d0/0x6c4 [ 45.414636][ T4910] path_mount+0xd20/0xfe8 [ 45.415581][ T4910] __arm64_sys_mount+0x488/0x5f8 [ 45.416670][ T4910] invoke_syscall+0x98/0x28c [ 45.417647][ T4910] el0_svc_common+0x13c/0x258 [ 45.418643][ T4910] do_el0_svc+0x5c/0x140 [ 45.419552][ T4910] el0_svc+0x78/0x1d0 [ 45.420473][ T4910] el0t_64_sync_handler+0xcc/0xe4 [ 45.421594][ T4910] el0t_64_sync+0x1a0/0x1a4 [ 45.621556][ T4932] loop0: detected capacity change from 0 to 32768 [ 45.624399][ T4932] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4932) [ 45.629826][ T4932] BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm [ 45.632030][ T4932] BTRFS info (device loop0): force clearing of disk cache [ 45.633565][ T4932] BTRFS info (device loop0): setting nodatasum [ 45.635199][ T4932] BTRFS info (device loop0): allowing degraded mounts [ 45.636639][ T4932] BTRFS info (device loop0): enabling disk space caching [ 45.638126][ T4932] BTRFS info (device loop0): disk space caching is enabled [ 45.639640][ T4932] BTRFS info (device loop0): has skinny extents [ 45.651569][ T4932] BTRFS info (device loop0): enabling ssd optimizations [ 45.653715][ T4932] BTRFS info (device loop0): clearing free space tree [ 45.656150][ T4932] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 45.658329][ T4932] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 45.662857][ T4932] BTRFS info (device loop0): checking UUID tree [ 45.667084][ T4932] FAULT_INJECTION: forcing a failure. [ 45.667084][ T4932] name failslab, interval 1, probability 0, space 0, times 0 [ 45.669851][ T4932] CPU: 0 PID: 4932 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 45.671804][ T4932] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 45.674046][ T4932] Call trace: [ 45.674785][ T4932] dump_backtrace+0x0/0x458 [ 45.675774][ T4932] show_stack+0x2c/0x3c [ 45.676684][ T4932] __dump_stack+0x30/0x40 [ 45.677634][ T4932] dump_stack_lvl+0xf4/0x15c [ 45.678637][ T4932] dump_stack+0x1c/0x5c [ 45.679560][ T4932] should_fail+0x3c8/0x520 [ 45.680573][ T4932] __should_failslab+0xbc/0x10c [ 45.681612][ T4932] should_failslab+0x10/0x28 [ 45.682638][ T4932] slab_pre_alloc_hook+0x64/0xe8 [ 45.683737][ T4932] kmem_cache_alloc+0x94/0x3d8 [ 45.684774][ T4932] start_transaction+0x530/0x1438 [ 45.685851][ T4932] btrfs_attach_transaction_barrier+0x30/0xac [ 45.686994][ T4932] btrfs_sync_fs+0x13c/0xb2c [ 45.687906][ T4932] sync_filesystem+0x1a0/0x218 [ 45.688888][ T4932] btrfs_remount+0x190/0x12ac [ 45.689840][ T4932] legacy_reconfigure+0xfc/0x114 [ 45.690879][ T4932] reconfigure_super+0x1d0/0x6c4 [ 45.691905][ T4932] path_mount+0xd20/0xfe8 [ 45.692770][ T4932] __arm64_sys_mount+0x488/0x5f8 [ 45.693707][ T4932] invoke_syscall+0x98/0x28c [ 45.694659][ T4932] el0_svc_common+0x13c/0x258 [ 45.695620][ T4932] do_el0_svc+0x5c/0x140 [ 45.696506][ T4932] el0_svc+0x78/0x1d0 [ 45.697342][ T4932] el0t_64_sync_handler+0xcc/0xe4 [ 45.698364][ T4932] el0t_64_sync+0x1a0/0x1a4 [ 45.886446][ T4954] loop0: detected capacity change from 0 to 32768 [ 45.889490][ T4954] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4954) [ 45.893955][ T4954] BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm [ 45.896273][ T4954] BTRFS info (device loop0): force clearing of disk cache [ 45.897947][ T4954] BTRFS info (device loop0): setting nodatasum [ 45.899359][ T4954] BTRFS info (device loop0): allowing degraded mounts [ 45.900960][ T4954] BTRFS info (device loop0): enabling disk space caching [ 45.902587][ T4954] BTRFS info (device loop0): disk space caching is enabled [ 45.904344][ T4954] BTRFS info (device loop0): has skinny extents [ 45.912700][ T4954] BTRFS info (device loop0): enabling ssd optimizations [ 45.914615][ T4954] BTRFS info (device loop0): clearing free space tree [ 45.916914][ T4954] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 45.919154][ T4954] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 45.923863][ T4954] BTRFS info (device loop0): checking UUID tree [ 45.927400][ T4954] FAULT_INJECTION: forcing a failure. [ 45.927400][ T4954] name failslab, interval 1, probability 0, space 0, times 0 [ 45.930079][ T4954] CPU: 1 PID: 4954 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 45.931951][ T4954] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 45.934412][ T4954] Call trace: [ 45.935142][ T4954] dump_backtrace+0x0/0x458 [ 45.936125][ T4954] show_stack+0x2c/0x3c [ 45.937025][ T4954] __dump_stack+0x30/0x40 [ 45.937943][ T4954] dump_stack_lvl+0xf4/0x15c [ 45.938882][ T4954] dump_stack+0x1c/0x5c [ 45.939751][ T4954] should_fail+0x3c8/0x520 [ 45.940669][ T4954] __should_failslab+0xbc/0x10c [ 45.941671][ T4954] should_failslab+0x10/0x28 [ 45.942571][ T4954] slab_pre_alloc_hook+0x64/0xe8 [ 45.943600][ T4954] kmem_cache_alloc_trace+0x98/0x3f0 [ 45.944644][ T4954] bdi_split_work_to_wbs+0x3f8/0x77c [ 45.945738][ T4954] __writeback_inodes_sb_nr+0x1ac/0x224 [ 45.946888][ T4954] writeback_inodes_sb+0x78/0x8c [ 45.947833][ T4954] sync_filesystem+0xa0/0x218 [ 45.948810][ T4954] btrfs_remount+0x190/0x12ac [ 45.949781][ T4954] legacy_reconfigure+0xfc/0x114 [ 45.950758][ T4954] reconfigure_super+0x1d0/0x6c4 [ 45.951768][ T4954] path_mount+0xd20/0xfe8 [ 45.952648][ T4954] __arm64_sys_mount+0x488/0x5f8 [ 45.953571][ T4954] invoke_syscall+0x98/0x28c [ 45.954504][ T4954] el0_svc_common+0x13c/0x258 [ 45.955513][ T4954] do_el0_svc+0x5c/0x140 [ 45.956389][ T4954] el0_svc+0x78/0x1d0 [ 45.957256][ T4954] el0t_64_sync_handler+0xcc/0xe4 [ 45.958316][ T4954] el0t_64_sync+0x1a0/0x1a4 [ 46.132529][ T4976] loop0: detected capacity change from 0 to 32768 [ 46.137305][ T4976] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4976) [ 46.142759][ T4976] BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm [ 46.144974][ T4976] BTRFS info (device loop0): force clearing of disk cache [ 46.146607][ T4976] BTRFS info (device loop0): setting nodatasum [ 46.147898][ T4976] BTRFS info (device loop0): allowing degraded mounts [ 46.149537][ T4976] BTRFS info (device loop0): enabling disk space caching [ 46.151200][ T4976] BTRFS info (device loop0): disk space caching is enabled [ 46.152872][ T4976] BTRFS info (device loop0): has skinny extents [ 46.163194][ T4976] BTRFS info (device loop0): enabling ssd optimizations [ 46.165371][ T4976] BTRFS info (device loop0): clearing free space tree [ 46.166756][ T4976] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 46.168892][ T4976] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 46.173457][ T4976] BTRFS info (device loop0): checking UUID tree [ 46.177375][ T4976] FAULT_INJECTION: forcing a failure. [ 46.177375][ T4976] name failslab, interval 1, probability 0, space 0, times 0 [ 46.179887][ T4976] CPU: 0 PID: 4976 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 46.181771][ T4976] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 46.183826][ T4976] Call trace: [ 46.184505][ T4976] dump_backtrace+0x0/0x458 [ 46.185433][ T4976] show_stack+0x2c/0x3c [ 46.186278][ T4976] __dump_stack+0x30/0x40 [ 46.187175][ T4976] dump_stack_lvl+0xf4/0x15c [ 46.188133][ T4976] dump_stack+0x1c/0x5c [ 46.188989][ T4976] should_fail+0x3c8/0x520 [ 46.189916][ T4976] __should_failslab+0xbc/0x10c [ 46.190933][ T4976] should_failslab+0x10/0x28 [ 46.191892][ T4976] slab_pre_alloc_hook+0x64/0xe8 [ 46.192951][ T4976] kmem_cache_alloc+0x94/0x3d8 [ 46.194018][ T4976] start_transaction+0x530/0x1438 [ 46.195078][ T4976] btrfs_attach_transaction_barrier+0x30/0xac [ 46.196381][ T4976] btrfs_sync_fs+0x13c/0xb2c [ 46.197344][ T4976] sync_filesystem+0x1a0/0x218 [ 46.198344][ T4976] btrfs_remount+0x190/0x12ac [ 46.199324][ T4976] legacy_reconfigure+0xfc/0x114 [ 46.200342][ T4976] reconfigure_super+0x1d0/0x6c4 [ 46.201479][ T4976] path_mount+0xd20/0xfe8 [ 46.202480][ T4976] __arm64_sys_mount+0x488/0x5f8 [ 46.203595][ T4976] invoke_syscall+0x98/0x28c [ 46.204552][ T4976] el0_svc_common+0x13c/0x258 [ 46.205555][ T4976] do_el0_svc+0x5c/0x140 [ 46.206434][ T4976] el0_svc+0x78/0x1d0 [ 46.207262][ T4976] el0t_64_sync_handler+0xcc/0xe4 [ 46.208303][ T4976] el0t_64_sync+0x1a0/0x1a4 [ 46.392579][ T4998] loop0: detected capacity change from 0 to 32768 [ 46.396039][ T4998] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4998) [ 46.400927][ T4998] BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm [ 46.403175][ T4998] BTRFS info (device loop0): force clearing of disk cache [ 46.405381][ T4998] BTRFS info (device loop0): setting nodatasum [ 46.406687][ T4998] BTRFS info (device loop0): allowing degraded mounts [ 46.408125][ T4998] BTRFS info (device loop0): enabling disk space caching [ 46.409640][ T4998] BTRFS info (device loop0): disk space caching is enabled [ 46.411162][ T4998] BTRFS info (device loop0): has skinny extents [ 46.421090][ T4998] BTRFS info (device loop0): enabling ssd optimizations [ 46.423145][ T4998] BTRFS info (device loop0): clearing free space tree [ 46.424615][ T4998] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 46.427448][ T4998] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 46.431418][ T4998] BTRFS info (device loop0): checking UUID tree [ 46.434346][ T4998] FAULT_INJECTION: forcing a failure. [ 46.434346][ T4998] name failslab, interval 1, probability 0, space 0, times 0 [ 46.438072][ T4998] CPU: 1 PID: 4998 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 46.439712][ T4998] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 46.441732][ T4998] Call trace: [ 46.442368][ T4998] dump_backtrace+0x0/0x458 [ 46.443253][ T4998] show_stack+0x2c/0x3c [ 46.444066][ T4998] __dump_stack+0x30/0x40 [ 46.444954][ T4998] dump_stack_lvl+0xf4/0x15c [ 46.445853][ T4998] dump_stack+0x1c/0x5c [ 46.446732][ T4998] should_fail+0x3c8/0x520 [ 46.447650][ T4998] __should_failslab+0xbc/0x10c [ 46.448687][ T4998] should_failslab+0x10/0x28 [ 46.449591][ T4998] slab_pre_alloc_hook+0x64/0xe8 [ 46.450564][ T4998] kmem_cache_alloc+0x94/0x3d8 [ 46.451499][ T4998] start_transaction+0x530/0x1438 [ 46.452438][ T4998] btrfs_attach_transaction_barrier+0x30/0xac [ 46.453574][ T4998] btrfs_sync_fs+0x13c/0xb2c [ 46.454481][ T4998] sync_filesystem+0x1a0/0x218 [ 46.455452][ T4998] btrfs_remount+0x190/0x12ac [ 46.456399][ T4998] legacy_reconfigure+0xfc/0x114 [ 46.457435][ T4998] reconfigure_super+0x1d0/0x6c4 [ 46.458463][ T4998] path_mount+0xd20/0xfe8 [ 46.459325][ T4998] __arm64_sys_mount+0x488/0x5f8 [ 46.460316][ T4998] invoke_syscall+0x98/0x28c [ 46.461235][ T4998] el0_svc_common+0x13c/0x258 [ 46.462196][ T4998] do_el0_svc+0x5c/0x140 [ 46.463062][ T4998] el0_svc+0x78/0x1d0 [ 46.463894][ T4998] el0t_64_sync_handler+0xcc/0xe4 [ 46.464889][ T4998] el0t_64_sync+0x1a0/0x1a4 [ 46.689073][ T5020] loop0: detected capacity change from 0 to 32768 [ 46.692998][ T5020] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5020) [ 46.699929][ T5020] BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm [ 46.701723][ T5020] BTRFS info (device loop0): force clearing of disk cache [ 46.703056][ T5020] BTRFS info (device loop0): setting nodatasum [ 46.704303][ T5020] BTRFS info (device loop0): allowing degraded mounts [ 46.705832][ T5020] BTRFS info (device loop0): enabling disk space caching [ 46.707165][ T5020] BTRFS info (device loop0): disk space caching is enabled [ 46.708574][ T5020] BTRFS info (device loop0): has skinny extents [ 46.716803][ T5020] BTRFS info (device loop0): enabling ssd optimizations [ 46.718633][ T5020] BTRFS info (device loop0): clearing free space tree [ 46.720131][ T5020] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 46.722052][ T5020] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 46.726166][ T5020] BTRFS info (device loop0): checking UUID tree [ 46.729260][ T5020] FAULT_INJECTION: forcing a failure. [ 46.729260][ T5020] name failslab, interval 1, probability 0, space 0, times 0 [ 46.731764][ T5020] CPU: 0 PID: 5020 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 46.733708][ T5020] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 46.735828][ T5020] Call trace: [ 46.736577][ T5020] dump_backtrace+0x0/0x458 [ 46.737700][ T5020] show_stack+0x2c/0x3c [ 46.738679][ T5020] __dump_stack+0x30/0x40 [ 46.739651][ T5020] dump_stack_lvl+0xf4/0x15c [ 46.740611][ T5020] dump_stack+0x1c/0x5c [ 46.741443][ T5020] should_fail+0x3c8/0x520 [ 46.742337][ T5020] __should_failslab+0xbc/0x10c [ 46.743266][ T5020] should_failslab+0x10/0x28 [ 46.744191][ T5020] slab_pre_alloc_hook+0x64/0xe8 [ 46.745206][ T5020] kmem_cache_alloc+0x94/0x3d8 [ 46.746145][ T5020] start_transaction+0x530/0x1438 [ 46.747340][ T5020] btrfs_attach_transaction_barrier+0x30/0xac [ 46.748741][ T5020] btrfs_sync_fs+0x13c/0xb2c [ 46.749742][ T5020] sync_filesystem+0x1a0/0x218 [ 46.750809][ T5020] btrfs_remount+0x190/0x12ac [ 46.751870][ T5020] legacy_reconfigure+0xfc/0x114 [ 46.753026][ T5020] reconfigure_super+0x1d0/0x6c4 [ 46.754098][ T5020] path_mount+0xd20/0xfe8 [ 46.755023][ T5020] __arm64_sys_mount+0x488/0x5f8 [ 46.756036][ T5020] invoke_syscall+0x98/0x28c [ 46.756954][ T5020] el0_svc_common+0x13c/0x258 [ 46.757923][ T5020] do_el0_svc+0x5c/0x140 [ 46.758836][ T5020] el0_svc+0x78/0x1d0 [ 46.759654][ T5020] el0t_64_sync_handler+0xcc/0xe4 [ 46.760771][ T5020] el0t_64_sync+0x1a0/0x1a4 [ 46.964730][ T4471] Bluetooth: hci0: command 0x0419 tx timeout [ 46.972180][ T5042] loop0: detected capacity change from 0 to 32768 [ 46.976553][ T5042] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5042) [ 46.987107][ T5042] BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm [ 46.988982][ T5042] BTRFS info (device loop0): force clearing of disk cache [ 46.990306][ T5042] BTRFS info (device loop0): setting nodatasum [ 46.991618][ T5042] BTRFS info (device loop0): allowing degraded mounts [ 46.992982][ T5042] BTRFS info (device loop0): enabling disk space caching [ 46.994380][ T5042] BTRFS info (device loop0): disk space caching is enabled [ 46.996269][ T5042] BTRFS info (device loop0): has skinny extents [ 47.013172][ T5042] BTRFS info (device loop0): enabling ssd optimizations [ 47.016498][ T5042] BTRFS info (device loop0): clearing free space tree [ 47.018051][ T5042] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 47.020110][ T5042] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 47.024583][ T5042] BTRFS info (device loop0): checking UUID tree [ 47.028418][ T5042] FAULT_INJECTION: forcing a failure. [ 47.028418][ T5042] name failslab, interval 1, probability 0, space 0, times 0 [ 47.031295][ T5042] CPU: 1 PID: 5042 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 47.033214][ T5042] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 47.035329][ T5042] Call trace: [ 47.036038][ T5042] dump_backtrace+0x0/0x458 [ 47.037006][ T5042] show_stack+0x2c/0x3c [ 47.037900][ T5042] __dump_stack+0x30/0x40 [ 47.038885][ T5042] dump_stack_lvl+0xf4/0x15c [ 47.039852][ T5042] dump_stack+0x1c/0x5c [ 47.040725][ T5042] should_fail+0x3c8/0x520 [ 47.041770][ T5042] __should_failslab+0xbc/0x10c [ 47.042908][ T5042] should_failslab+0x10/0x28 [ 47.044015][ T5042] slab_pre_alloc_hook+0x64/0xe8 [ 47.045120][ T5042] kmem_cache_alloc_trace+0x98/0x3f0 [ 47.046394][ T5042] bdi_split_work_to_wbs+0x3f8/0x77c [ 47.047581][ T5042] __writeback_inodes_sb_nr+0x1ac/0x224 [ 47.048872][ T5042] writeback_inodes_sb+0x78/0x8c [ 47.049976][ T5042] sync_filesystem+0xa0/0x218 [ 47.051033][ T5042] btrfs_remount+0x190/0x12ac [ 47.052157][ T5042] legacy_reconfigure+0xfc/0x114 [ 47.053340][ T5042] reconfigure_super+0x1d0/0x6c4 [ 47.054445][ T5042] path_mount+0xd20/0xfe8 [ 47.055436][ T5042] __arm64_sys_mount+0x488/0x5f8 [ 47.056524][ T5042] invoke_syscall+0x98/0x28c [ 47.057524][ T5042] el0_svc_common+0x13c/0x258 [ 47.058531][ T5042] do_el0_svc+0x5c/0x140 [ 47.059339][ T5042] el0_svc+0x78/0x1d0 [ 47.060231][ T5042] el0t_64_sync_handler+0xcc/0xe4 [ 47.061390][ T5042] el0t_64_sync+0x1a0/0x1a4 [ 47.270155][ T5064] loop0: detected capacity change from 0 to 32768 [ 47.273182][ T5064] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5064) [ 47.277245][ T5064] BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm [ 47.279206][ T5064] BTRFS info (device loop0): force clearing of disk cache [ 47.280768][ T5064] BTRFS info (device loop0): setting nodatasum [ 47.282116][ T5064] BTRFS info (device loop0): allowing degraded mounts [ 47.283542][ T5064] BTRFS info (device loop0): enabling disk space caching [ 47.285178][ T5064] BTRFS info (device loop0): disk space caching is enabled [ 47.286756][ T5064] BTRFS info (device loop0): has skinny extents [ 47.305786][ T5064] BTRFS info (device loop0): enabling ssd optimizations [ 47.307802][ T5064] BTRFS info (device loop0): clearing free space tree [ 47.309446][ T5064] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 47.311521][ T5064] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 47.316968][ T5064] BTRFS info (device loop0): checking UUID tree [ 47.319778][ T5064] FAULT_INJECTION: forcing a failure. [ 47.319778][ T5064] name failslab, interval 1, probability 0, space 0, times 0 [ 47.322344][ T5064] CPU: 0 PID: 5064 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 47.324383][ T5064] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 47.326572][ T5064] Call trace: [ 47.327246][ T5064] dump_backtrace+0x0/0x458 [ 47.328152][ T5064] show_stack+0x2c/0x3c [ 47.329155][ T5064] __dump_stack+0x30/0x40 [ 47.330182][ T5064] dump_stack_lvl+0xf4/0x15c [ 47.331156][ T5064] dump_stack+0x1c/0x5c [ 47.332045][ T5064] should_fail+0x3c8/0x520 [ 47.332990][ T5064] __should_failslab+0xbc/0x10c [ 47.334009][ T5064] should_failslab+0x10/0x28 [ 47.334970][ T5064] slab_pre_alloc_hook+0x64/0xe8 [ 47.336002][ T5064] kmem_cache_alloc+0x94/0x3d8 [ 47.337072][ T5064] start_transaction+0x530/0x1438 [ 47.338193][ T5064] btrfs_attach_transaction_barrier+0x30/0xac [ 47.339525][ T5064] btrfs_sync_fs+0x13c/0xb2c [ 47.340511][ T5064] sync_filesystem+0x1a0/0x218 [ 47.341503][ T5064] btrfs_remount+0x190/0x12ac [ 47.342428][ T5064] legacy_reconfigure+0xfc/0x114 [ 47.343418][ T5064] reconfigure_super+0x1d0/0x6c4 [ 47.344562][ T5064] path_mount+0xd20/0xfe8 [ 47.345555][ T5064] __arm64_sys_mount+0x488/0x5f8 [ 47.346565][ T5064] invoke_syscall+0x98/0x28c [ 47.347460][ T5064] el0_svc_common+0x13c/0x258 [ 47.348455][ T5064] do_el0_svc+0x5c/0x140 [ 47.349255][ T5064] el0_svc+0x78/0x1d0 [ 47.350071][ T5064] el0t_64_sync_handler+0xcc/0xe4 [ 47.351032][ T5064] el0t_64_sync+0x1a0/0x1a4 [ 47.564027][ T5086] loop0: detected capacity change from 0 to 32768 [ 47.566945][ T5086] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5086) [ 47.571289][ T5086] BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm [ 47.573804][ T5086] BTRFS info (device loop0): force clearing of disk cache [ 47.575377][ T5086] BTRFS info (device loop0): setting nodatasum [ 47.576612][ T5086] BTRFS info (device loop0): allowing degraded mounts [ 47.594114][ T5086] FAULT_INJECTION: forcing a failure. [ 47.594114][ T5086] name failslab, interval 1, probability 0, space 0, times 0 [ 47.597619][ T5086] CPU: 1 PID: 5086 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 47.599659][ T5086] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 47.601800][ T5086] Call trace: [ 47.602484][ T5086] dump_backtrace+0x0/0x458 [ 47.603454][ T5086] show_stack+0x2c/0x3c [ 47.604343][ T5086] __dump_stack+0x30/0x40 [ 47.605278][ T5086] dump_stack_lvl+0xf4/0x15c [ 47.606261][ T5086] dump_stack+0x1c/0x5c [ 47.607272][ T5086] should_fail+0x3c8/0x520 [ 47.608327][ T5086] __should_failslab+0xbc/0x10c [ 47.609444][ T5086] should_failslab+0x10/0x28 [ 47.610516][ T5086] slab_pre_alloc_hook+0x64/0xe8 [ 47.611611][ T5086] kmem_cache_alloc+0x94/0x3d8 [ 47.612646][ T5086] getname_flags+0xb8/0x44c [ 47.613576][ T5086] getname+0x28/0x38 [ 47.614410][ T5086] do_sys_openat2+0xdc/0x3fc [ 47.615314][ T5086] __arm64_sys_openat+0x11c/0x150 [ 47.616512][ T5086] invoke_syscall+0x98/0x28c [ 47.617566][ T5086] el0_svc_common+0x13c/0x258 [ 47.618566][ T5086] do_el0_svc+0x5c/0x140 [ 47.619436][ T5086] el0_svc+0x78/0x1d0 [ 47.620385][ T5086] el0t_64_sync_handler+0xcc/0xe4 [ 47.621589][ T5086] el0t_64_sync+0x1a0/0x1a4 [ 47.799737][ T5108] loop0: detected capacity change from 0 to 32768 [ 47.802833][ T5108] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5108) [ 47.824613][ T5108] FAULT_INJECTION: forcing a failure. [ 47.824613][ T5108] name failslab, interval 1, probability 0, space 0, times 0 [ 47.827326][ T5108] CPU: 0 PID: 5108 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 47.829280][ T5108] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 47.831407][ T5108] Call trace: [ 47.832002][ T5108] dump_backtrace+0x0/0x458 [ 47.832847][ T5108] show_stack+0x2c/0x3c [ 47.833644][ T5108] __dump_stack+0x30/0x40 [ 47.834453][ T5108] dump_stack_lvl+0xf4/0x15c [ 47.835408][ T5108] dump_stack+0x1c/0x5c [ 47.836285][ T5108] should_fail+0x3c8/0x520 [ 47.837195][ T5108] __should_failslab+0xbc/0x10c [ 47.838242][ T5108] should_failslab+0x10/0x28 [ 47.839294][ T5108] slab_pre_alloc_hook+0x64/0xe8 [ 47.840386][ T5108] kmem_cache_alloc+0x94/0x3d8 [ 47.841467][ T5108] start_transaction+0x530/0x1438 [ 47.842580][ T5108] btrfs_attach_transaction_barrier+0x30/0xac [ 47.843884][ T5108] btrfs_sync_fs+0x13c/0xb2c [ 47.844873][ T5108] sync_filesystem+0x1a0/0x218 [ 47.845889][ T5108] btrfs_remount+0x190/0x12ac [ 47.846948][ T5108] legacy_reconfigure+0xfc/0x114 [ 47.848007][ T5108] reconfigure_super+0x1d0/0x6c4 [ 47.849113][ T5108] path_mount+0xd20/0xfe8 [ 47.850055][ T5108] __arm64_sys_mount+0x488/0x5f8 [ 47.851150][ T5108] invoke_syscall+0x98/0x28c [ 47.852262][ T5108] el0_svc_common+0x13c/0x258 [ 47.853308][ T5108] do_el0_svc+0x5c/0x140 [ 47.854106][ T5108] el0_svc+0x78/0x1d0 [ 47.854911][ T5108] el0t_64_sync_handler+0xcc/0xe4 [ 47.855929][ T5108] el0t_64_sync+0x1a0/0x1a4 [ 48.045481][ T5130] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5130) [ 48.074831][ T5130] FAULT_INJECTION: forcing a failure. [ 48.074831][ T5130] name failslab, interval 1, probability 0, space 0, times 0 [ 48.077558][ T5130] CPU: 0 PID: 5130 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 48.079611][ T5130] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 48.081773][ T5130] Call trace: [ 48.082461][ T5130] dump_backtrace+0x0/0x458 [ 48.083429][ T5130] show_stack+0x2c/0x3c [ 48.084307][ T5130] __dump_stack+0x30/0x40 [ 48.085171][ T5130] dump_stack_lvl+0xf4/0x15c [ 48.086111][ T5130] dump_stack+0x1c/0x5c [ 48.086966][ T5130] should_fail+0x3c8/0x520 [ 48.087879][ T5130] __should_failslab+0xbc/0x10c [ 48.088857][ T5130] should_failslab+0x10/0x28 [ 48.089822][ T5130] slab_pre_alloc_hook+0x64/0xe8 [ 48.090860][ T5130] kmem_cache_alloc+0x94/0x3d8 [ 48.091890][ T5130] getname_flags+0xb8/0x44c [ 48.092850][ T5130] getname+0x28/0x38 [ 48.093662][ T5130] do_sys_openat2+0xdc/0x3fc [ 48.094589][ T5130] __arm64_sys_openat+0x11c/0x150 [ 48.095625][ T5130] invoke_syscall+0x98/0x28c [ 48.096593][ T5130] el0_svc_common+0x13c/0x258 [ 48.097576][ T5130] do_el0_svc+0x5c/0x140 [ 48.098458][ T5130] el0_svc+0x78/0x1d0 [ 48.099320][ T5130] el0t_64_sync_handler+0xcc/0xe4 [ 48.100374][ T5130] el0t_64_sync+0x1a0/0x1a4 [ 48.301049][ T5152] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5152) [ 48.325493][ T5152] FAULT_INJECTION: forcing a failure. [ 48.325493][ T5152] name failslab, interval 1, probability 0, space 0, times 0 [ 48.328445][ T5152] CPU: 1 PID: 5152 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 48.330272][ T5152] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 48.332356][ T5152] Call trace: [ 48.333018][ T5152] dump_backtrace+0x0/0x458 [ 48.333907][ T5152] show_stack+0x2c/0x3c [ 48.334758][ T5152] __dump_stack+0x30/0x40 [ 48.335714][ T5152] dump_stack_lvl+0xf4/0x15c [ 48.336710][ T5152] dump_stack+0x1c/0x5c [ 48.337587][ T5152] should_fail+0x3c8/0x520 [ 48.338512][ T5152] __should_failslab+0xbc/0x10c [ 48.339531][ T5152] should_failslab+0x10/0x28 [ 48.340487][ T5152] slab_pre_alloc_hook+0x64/0xe8 [ 48.341507][ T5152] kmem_cache_alloc+0x94/0x3d8 [ 48.342473][ T5152] btrfs_alloc_path+0x5c/0x68 [ 48.343409][ T5152] __btrfs_run_delayed_items+0x88/0x478 [ 48.344567][ T5152] btrfs_run_delayed_items+0x24/0x34 [ 48.345574][ T5152] btrfs_commit_transaction+0x7f8/0x30ac [ 48.346574][ T5152] btrfs_sync_fs+0x240/0xb2c [ 48.347426][ T5152] sync_filesystem+0x1a0/0x218 [ 48.348256][ T5152] btrfs_remount+0x190/0x12ac [ 48.349140][ T5152] legacy_reconfigure+0xfc/0x114 [ 48.350167][ T5152] reconfigure_super+0x1d0/0x6c4 [ 48.351157][ T5152] path_mount+0xd20/0xfe8 [ 48.351846][ T5152] __arm64_sys_mount+0x488/0x5f8 [ 48.352703][ T5152] invoke_syscall+0x98/0x28c [ 48.353580][ T5152] el0_svc_common+0x13c/0x258 [ 48.354490][ T5152] do_el0_svc+0x5c/0x140 [ 48.355307][ T5152] el0_svc+0x78/0x1d0 [ 48.356078][ T5152] el0t_64_sync_handler+0xcc/0xe4 [ 48.357060][ T5152] el0t_64_sync+0x1a0/0x1a4 [ 48.360229][ T5152] BTRFS warning (device loop0): Skipping commit of aborted transaction. [ 48.361938][ T5152] ------------[ cut here ]------------ [ 48.363198][ T5152] WARNING: CPU: 1 PID: 5152 at fs/btrfs/transaction.c:2021 btrfs_commit_transaction+0x1e20/0x30ac [ 48.365326][ T5152] Modules linked in: [ 48.366127][ T5152] CPU: 1 PID: 5152 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 48.367988][ T5152] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 48.370063][ T5152] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 48.371666][ T5152] pc : btrfs_commit_transaction+0x1e20/0x30ac [ 48.372855][ T5152] lr : btrfs_commit_transaction+0x1e20/0x30ac [ 48.374109][ T5152] sp : ffff8000222f75e0 [ 48.374953][ T5152] x29: ffff8000222f7820 x28: ffff0000d24a8000 x27: dfff800000000000 [ 48.376601][ T5152] x26: ffff70000445eed4 x25: ffff0000e4f3c7e8 x24: ffff0000dbc499d0 [ 48.378261][ T5152] x23: 00000000fffffff4 x22: ffff0000da118000 x21: ffff0000dbc48000 [ 48.379916][ T5152] x20: 0000000000000000 x19: 1fffe0001c9e78fd x18: 0000000000000000 [ 48.381574][ T5152] x17: 0000000000000000 x16: ffff8000113710a0 x15: 0000000000000000 [ 48.383106][ T5152] x14: 0000000000000001 x13: 1fffe000341ce9ab x12: 0000000000000000 [ 48.384711][ T5152] x11: ff80800008300a7c x10: 0000000000000000 x9 : 2a33636c4a922100 [ 48.386339][ T5152] x8 : 2a33636c4a922100 x7 : 0000000000000001 x6 : 0000000000000001 [ 48.388013][ T5152] x5 : ffff8000222f6ef8 x4 : ffff80001448f520 x3 : ffff800008510b80 [ 48.389631][ T5152] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 48.391256][ T5152] Call trace: [ 48.391946][ T5152] btrfs_commit_transaction+0x1e20/0x30ac [ 48.393084][ T5152] btrfs_sync_fs+0x240/0xb2c [ 48.394072][ T5152] sync_filesystem+0x1a0/0x218 [ 48.395124][ T5152] btrfs_remount+0x190/0x12ac [ 48.396173][ T5152] legacy_reconfigure+0xfc/0x114 [ 48.397189][ T5152] reconfigure_super+0x1d0/0x6c4 [ 48.398170][ T5152] path_mount+0xd20/0xfe8 [ 48.399114][ T5152] __arm64_sys_mount+0x488/0x5f8 [ 48.400144][ T5152] invoke_syscall+0x98/0x28c [ 48.401128][ T5152] el0_svc_common+0x13c/0x258 [ 48.402104][ T5152] do_el0_svc+0x5c/0x140 [ 48.402998][ T5152] el0_svc+0x78/0x1d0 [ 48.403842][ T5152] el0t_64_sync_handler+0xcc/0xe4 [ 48.404903][ T5152] el0t_64_sync+0x1a0/0x1a4 [ 48.405857][ T5152] irq event stamp: 80502 [ 48.406750][ T5152] hardirqs last enabled at (80501): [] __up_console_sem+0xb4/0xfc [ 48.408751][ T5152] hardirqs last disabled at (80502): [] el1_dbg+0x24/0x80 [ 48.410594][ T5152] softirqs last enabled at (80464): [] handle_softirqs+0xa70/0xc14 [ 48.412590][ T5152] softirqs last disabled at (80365): [] __irq_exit_rcu+0x240/0x434 [ 48.414532][ T5152] ---[ end trace 9e0292fa3ae15066 ]--- [ 48.415740][ T5152] BTRFS: error (device loop0) in cleanup_transaction:2021: errno=-12 Out of memory [ 48.417846][ T5152] BTRFS error (device loop0): Remounting read-write after error is not allowed [ 48.593933][ T5174] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5174) [ 48.623246][ T5174] FAULT_INJECTION: forcing a failure. [ 48.623246][ T5174] name failslab, interval 1, probability 0, space 0, times 0 [ 48.626683][ T5174] CPU: 0 PID: 5174 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 48.628487][ T5174] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 48.630495][ T5174] Call trace: [ 48.631140][ T5174] dump_backtrace+0x0/0x458 [ 48.632092][ T5174] show_stack+0x2c/0x3c [ 48.632952][ T5174] __dump_stack+0x30/0x40 [ 48.633882][ T5174] dump_stack_lvl+0xf4/0x15c [ 48.634839][ T5174] dump_stack+0x1c/0x5c [ 48.635717][ T5174] should_fail+0x3c8/0x520 [ 48.636652][ T5174] __should_failslab+0xbc/0x10c [ 48.637654][ T5174] should_failslab+0x10/0x28 [ 48.638603][ T5174] slab_pre_alloc_hook+0x64/0xe8 [ 48.639644][ T5174] kmem_cache_alloc+0x94/0x3d8 [ 48.640626][ T5174] start_transaction+0x530/0x1438 [ 48.641633][ T5174] btrfs_attach_transaction_barrier+0x30/0xac [ 48.642869][ T5174] btrfs_sync_fs+0x13c/0xb2c [ 48.643753][ T5174] sync_filesystem+0x1a0/0x218 [ 48.644669][ T5174] btrfs_remount+0x190/0x12ac [ 48.645628][ T5174] legacy_reconfigure+0xfc/0x114 [ 48.646586][ T5174] reconfigure_super+0x1d0/0x6c4 [ 48.647598][ T5174] path_mount+0xd20/0xfe8 [ 48.648468][ T5174] __arm64_sys_mount+0x488/0x5f8 [ 48.649417][ T5174] invoke_syscall+0x98/0x28c [ 48.650360][ T5174] el0_svc_common+0x13c/0x258 [ 48.651312][ T5174] do_el0_svc+0x5c/0x140 [ 48.652115][ T5174] el0_svc+0x78/0x1d0 [ 48.652910][ T5174] el0t_64_sync_handler+0xcc/0xe4 [ 48.653918][ T5174] el0t_64_sync+0x1a0/0x1a4 [ 48.861152][ T5196] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5196) [ 48.885623][ T5196] FAULT_INJECTION: forcing a failure. [ 48.885623][ T5196] name failslab, interval 1, probability 0, space 0, times 0 [ 48.888475][ T5196] CPU: 1 PID: 5196 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 48.890457][ T5196] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 48.892797][ T5196] Call trace: [ 48.893443][ T5196] dump_backtrace+0x0/0x458 [ 48.894369][ T5196] show_stack+0x2c/0x3c [ 48.895229][ T5196] __dump_stack+0x30/0x40 [ 48.896138][ T5196] dump_stack_lvl+0xf4/0x15c [ 48.897109][ T5196] dump_stack+0x1c/0x5c [ 48.897966][ T5196] should_fail+0x3c8/0x520 [ 48.898891][ T5196] __should_failslab+0xbc/0x10c [ 48.899897][ T5196] should_failslab+0x10/0x28 [ 48.900831][ T5196] slab_pre_alloc_hook+0x64/0xe8 [ 48.901829][ T5196] kmem_cache_alloc+0x94/0x3d8 [ 48.902805][ T5196] getname_flags+0xb8/0x44c [ 48.903781][ T5196] getname+0x28/0x38 [ 48.904584][ T5196] do_sys_openat2+0xdc/0x3fc [ 48.905455][ T5196] __arm64_sys_openat+0x11c/0x150 [ 48.906485][ T5196] invoke_syscall+0x98/0x28c [ 48.907423][ T5196] el0_svc_common+0x13c/0x258 [ 48.908545][ T5196] do_el0_svc+0x5c/0x140 [ 48.909560][ T5196] el0_svc+0x78/0x1d0 [ 48.910496][ T5196] el0t_64_sync_handler+0xcc/0xe4 [ 48.911512][ T5196] el0t_64_sync+0x1a0/0x1a4 1970/01/01 00:00:48 executed programs: 33 [ 49.123225][ T5218] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5218) [ 49.155784][ T5218] FAULT_INJECTION: forcing a failure. [ 49.155784][ T5218] name failslab, interval 1, probability 0, space 0, times 0 [ 49.158708][ T5218] CPU: 1 PID: 5218 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 49.160548][ T5218] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 49.162682][ T5218] Call trace: [ 49.163357][ T5218] dump_backtrace+0x0/0x458 [ 49.164432][ T5218] show_stack+0x2c/0x3c [ 49.165417][ T5218] __dump_stack+0x30/0x40 [ 49.166386][ T5218] dump_stack_lvl+0xf4/0x15c [ 49.167433][ T5218] dump_stack+0x1c/0x5c [ 49.168266][ T5218] should_fail+0x3c8/0x520 [ 49.169206][ T5218] __should_failslab+0xbc/0x10c [ 49.170177][ T5218] should_failslab+0x10/0x28 [ 49.171143][ T5218] slab_pre_alloc_hook+0x64/0xe8 [ 49.172163][ T5218] kmem_cache_alloc+0x94/0x3d8 [ 49.173160][ T5218] start_transaction+0x530/0x1438 [ 49.174174][ T5218] btrfs_attach_transaction_barrier+0x30/0xac [ 49.175416][ T5218] btrfs_sync_fs+0x13c/0xb2c [ 49.176333][ T5218] sync_filesystem+0x1a0/0x218 [ 49.177284][ T5218] btrfs_remount+0x190/0x12ac [ 49.178184][ T5218] legacy_reconfigure+0xfc/0x114 [ 49.179146][ T5218] reconfigure_super+0x1d0/0x6c4 [ 49.180145][ T5218] path_mount+0xd20/0xfe8 [ 49.181011][ T5218] __arm64_sys_mount+0x488/0x5f8 [ 49.181973][ T5218] invoke_syscall+0x98/0x28c [ 49.182863][ T5218] el0_svc_common+0x13c/0x258 [ 49.183792][ T5218] do_el0_svc+0x5c/0x140 [ 49.184643][ T5218] el0_svc+0x78/0x1d0 [ 49.185434][ T5218] el0t_64_sync_handler+0xcc/0xe4 [ 49.186437][ T5218] el0t_64_sync+0x1a0/0x1a4 [ 49.379190][ T5240] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5240) [ 49.403969][ T5240] FAULT_INJECTION: forcing a failure. [ 49.403969][ T5240] name failslab, interval 1, probability 0, space 0, times 0 [ 49.406877][ T5240] CPU: 1 PID: 5240 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 49.408716][ T5240] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 49.410964][ T5240] Call trace: [ 49.411668][ T5240] dump_backtrace+0x0/0x458 [ 49.412593][ T5240] show_stack+0x2c/0x3c [ 49.413448][ T5240] __dump_stack+0x30/0x40 [ 49.414342][ T5240] dump_stack_lvl+0xf4/0x15c [ 49.415286][ T5240] dump_stack+0x1c/0x5c [ 49.416156][ T5240] should_fail+0x3c8/0x520 [ 49.417085][ T5240] __should_failslab+0xbc/0x10c [ 49.418100][ T5240] should_failslab+0x10/0x28 [ 49.419095][ T5240] slab_pre_alloc_hook+0x64/0xe8 [ 49.420118][ T5240] kmem_cache_alloc+0x94/0x3d8 [ 49.421087][ T5240] btrfs_alloc_path+0x5c/0x68 [ 49.422130][ T5240] __btrfs_run_delayed_items+0x88/0x478 [ 49.423321][ T5240] btrfs_run_delayed_items+0x24/0x34 [ 49.424470][ T5240] btrfs_commit_transaction+0x7f8/0x30ac [ 49.425666][ T5240] btrfs_sync_fs+0x240/0xb2c [ 49.426610][ T5240] sync_filesystem+0x1a0/0x218 [ 49.427614][ T5240] btrfs_remount+0x190/0x12ac [ 49.428603][ T5240] legacy_reconfigure+0xfc/0x114 [ 49.429658][ T5240] reconfigure_super+0x1d0/0x6c4 [ 49.430690][ T5240] path_mount+0xd20/0xfe8 [ 49.431586][ T5240] __arm64_sys_mount+0x488/0x5f8 [ 49.432591][ T5240] invoke_syscall+0x98/0x28c [ 49.433539][ T5240] el0_svc_common+0x13c/0x258 [ 49.434491][ T5240] do_el0_svc+0x5c/0x140 [ 49.435341][ T5240] el0_svc+0x78/0x1d0 [ 49.436133][ T5240] el0t_64_sync_handler+0xcc/0xe4 [ 49.437156][ T5240] el0t_64_sync+0x1a0/0x1a4 [ 49.438553][ T5240] BTRFS warning (device loop0): Skipping commit of aborted transaction. [ 49.440293][ T5240] ------------[ cut here ]------------ [ 49.441625][ T5240] WARNING: CPU: 1 PID: 5240 at fs/btrfs/transaction.c:2021 btrfs_commit_transaction+0x1e20/0x30ac [ 49.443947][ T5240] Modules linked in: [ 49.444824][ T5240] CPU: 1 PID: 5240 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 49.446839][ T5240] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 49.448895][ T5240] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 49.450437][ T5240] pc : btrfs_commit_transaction+0x1e20/0x30ac [ 49.451695][ T5240] lr : btrfs_commit_transaction+0x1e20/0x30ac [ 49.452951][ T5240] sp : ffff8000228675e0 [ 49.453796][ T5240] x29: ffff800022867820 x28: ffff0000d24d1630 x27: dfff800000000000 [ 49.455330][ T5240] x26: ffff70000450ced4 x25: ffff0000d3979168 x24: ffff0000d21bd9d0 [ 49.456795][ T5240] x23: 00000000fffffff4 x22: ffff0000c8858000 x21: ffff0000d21bc000 [ 49.458361][ T5240] x20: 0000000000000000 x19: 1fffe0001a72f22d x18: 0000000000000000 [ 49.460005][ T5240] x17: 0000000000000000 x16: ffff8000113710a0 x15: 0000000000000000 [ 49.462285][ T5240] x14: 0000000000000001 x13: 1fffe000341ce9ab x12: 0000000000000000 [ 49.463934][ T5240] x11: ff80800008300a7c x10: 0000000000000000 x9 : 12d2b57c34936300 [ 49.465563][ T5240] x8 : 12d2b57c34936300 x7 : 0000000000000001 x6 : 0000000000000001 [ 49.467218][ T5240] x5 : ffff800022866ef8 x4 : ffff80001448f520 x3 : ffff800008510b80 [ 49.468808][ T5240] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 49.470469][ T5240] Call trace: [ 49.471131][ T5240] btrfs_commit_transaction+0x1e20/0x30ac [ 49.472249][ T5240] btrfs_sync_fs+0x240/0xb2c [ 49.473140][ T5240] sync_filesystem+0x1a0/0x218 [ 49.474088][ T5240] btrfs_remount+0x190/0x12ac [ 49.475030][ T5240] legacy_reconfigure+0xfc/0x114 [ 49.476041][ T5240] reconfigure_super+0x1d0/0x6c4 [ 49.476987][ T5240] path_mount+0xd20/0xfe8 [ 49.477891][ T5240] __arm64_sys_mount+0x488/0x5f8 [ 49.478866][ T5240] invoke_syscall+0x98/0x28c [ 49.479719][ T5240] el0_svc_common+0x13c/0x258 [ 49.480701][ T5240] do_el0_svc+0x5c/0x140 [ 49.481569][ T5240] el0_svc+0x78/0x1d0 [ 49.482354][ T5240] el0t_64_sync_handler+0xcc/0xe4 [ 49.483386][ T5240] el0t_64_sync+0x1a0/0x1a4 [ 49.484325][ T5240] irq event stamp: 80966 [ 49.485167][ T5240] hardirqs last enabled at (80965): [] __up_console_sem+0xb4/0xfc [ 49.487100][ T5240] hardirqs last disabled at (80966): [] el1_dbg+0x24/0x80 [ 49.488885][ T5240] softirqs last enabled at (80926): [] handle_softirqs+0xa70/0xc14 [ 49.490840][ T5240] softirqs last disabled at (80801): [] __irq_exit_rcu+0x240/0x434 [ 49.492802][ T5240] ---[ end trace 9e0292fa3ae15067 ]--- [ 49.494500][ T5240] BTRFS: error (device loop0) in cleanup_transaction:2021: errno=-12 Out of memory [ 49.496563][ T5240] BTRFS error (device loop0): Remounting read-write after error is not allowed [ 49.687786][ T5262] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5262) [ 49.713000][ T5262] FAULT_INJECTION: forcing a failure. [ 49.713000][ T5262] name failslab, interval 1, probability 0, space 0, times 0 [ 49.715678][ T5262] CPU: 1 PID: 5262 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 49.717510][ T5262] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 49.719500][ T5262] Call trace: [ 49.720086][ T5262] dump_backtrace+0x0/0x458 [ 49.720980][ T5262] show_stack+0x2c/0x3c [ 49.721770][ T5262] __dump_stack+0x30/0x40 [ 49.722622][ T5262] dump_stack_lvl+0xf4/0x15c [ 49.723476][ T5262] dump_stack+0x1c/0x5c [ 49.724247][ T5262] should_fail+0x3c8/0x520 [ 49.725133][ T5262] __should_failslab+0xbc/0x10c [ 49.726135][ T5262] should_failslab+0x10/0x28 [ 49.727093][ T5262] slab_pre_alloc_hook+0x64/0xe8 [ 49.728115][ T5262] kmem_cache_alloc+0x94/0x3d8 [ 49.729045][ T5262] start_transaction+0x530/0x1438 [ 49.730240][ T5262] btrfs_attach_transaction_barrier+0x30/0xac [ 49.731571][ T5262] btrfs_sync_fs+0x13c/0xb2c [ 49.732702][ T5262] sync_filesystem+0x1a0/0x218 [ 49.733746][ T5262] btrfs_remount+0x190/0x12ac [ 49.734799][ T5262] legacy_reconfigure+0xfc/0x114 [ 49.735943][ T5262] reconfigure_super+0x1d0/0x6c4 [ 49.736930][ T5262] path_mount+0xd20/0xfe8 [ 49.737798][ T5262] __arm64_sys_mount+0x488/0x5f8 [ 49.738850][ T5262] invoke_syscall+0x98/0x28c [ 49.739812][ T5262] el0_svc_common+0x13c/0x258 [ 49.740795][ T5262] do_el0_svc+0x5c/0x140 [ 49.741676][ T5262] el0_svc+0x78/0x1d0 [ 49.742420][ T5262] el0t_64_sync_handler+0xcc/0xe4 [ 49.743407][ T5262] el0t_64_sync+0x1a0/0x1a4 [ 49.953488][ T5284] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5284) [ 49.971903][ T5284] FAULT_INJECTION: forcing a failure. [ 49.971903][ T5284] name failslab, interval 1, probability 0, space 0, times 0 [ 49.974641][ T5284] CPU: 0 PID: 5284 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 49.976634][ T5284] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 49.979120][ T5284] Call trace: [ 49.979866][ T5284] dump_backtrace+0x0/0x458 [ 49.980892][ T5284] show_stack+0x2c/0x3c [ 49.981818][ T5284] __dump_stack+0x30/0x40 [ 49.982738][ T5284] dump_stack_lvl+0xf4/0x15c [ 49.983706][ T5284] dump_stack+0x1c/0x5c [ 49.984548][ T5284] should_fail+0x3c8/0x520 [ 49.985479][ T5284] __should_failslab+0xbc/0x10c [ 49.986479][ T5284] should_failslab+0x10/0x28 [ 49.987432][ T5284] slab_pre_alloc_hook+0x64/0xe8 [ 49.988479][ T5284] kmem_cache_alloc+0x94/0x3d8 [ 49.989452][ T5284] btrfs_alloc_path+0x5c/0x68 [ 49.990387][ T5284] __btrfs_run_delayed_items+0x88/0x478 [ 49.991538][ T5284] btrfs_run_delayed_items+0x24/0x34 [ 49.992578][ T5284] btrfs_commit_transaction+0x7f8/0x30ac [ 49.993702][ T5284] btrfs_sync_fs+0x240/0xb2c [ 49.994653][ T5284] sync_filesystem+0x1a0/0x218 [ 49.995623][ T5284] btrfs_remount+0x190/0x12ac [ 49.996583][ T5284] legacy_reconfigure+0xfc/0x114 [ 49.997572][ T5284] reconfigure_super+0x1d0/0x6c4 [ 49.998570][ T5284] path_mount+0xd20/0xfe8 [ 49.999461][ T5284] __arm64_sys_mount+0x488/0x5f8 [ 50.000457][ T5284] invoke_syscall+0x98/0x28c [ 50.001418][ T5284] el0_svc_common+0x13c/0x258 [ 50.002422][ T5284] do_el0_svc+0x5c/0x140 [ 50.003348][ T5284] el0_svc+0x78/0x1d0 [ 50.004188][ T5284] el0t_64_sync_handler+0xcc/0xe4 [ 50.005236][ T5284] el0t_64_sync+0x1a0/0x1a4 [ 50.007813][ T5284] BTRFS warning (device loop0): Skipping commit of aborted transaction. [ 50.009431][ T5284] ------------[ cut here ]------------ [ 50.010624][ T5284] WARNING: CPU: 0 PID: 5284 at fs/btrfs/transaction.c:2021 btrfs_commit_transaction+0x1e20/0x30ac [ 50.012598][ T5284] Modules linked in: [ 50.013270][ T5284] CPU: 0 PID: 5284 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 50.014973][ T5284] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 50.016931][ T5284] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 50.018518][ T5284] pc : btrfs_commit_transaction+0x1e20/0x30ac [ 50.019771][ T5284] lr : btrfs_commit_transaction+0x1e20/0x30ac [ 50.021031][ T5284] sp : ffff800022d875e0 [ 50.021871][ T5284] x29: ffff800022d87820 x28: ffff0000de9bfdc0 x27: dfff800000000000 [ 50.023531][ T5284] x26: ffff7000045b0ed4 x25: ffff0000d920c7e8 x24: ffff0000d54d99d0 [ 50.025238][ T5284] x23: 00000000fffffff4 x22: ffff0000c85f3000 x21: ffff0000d54d8000 [ 50.026838][ T5284] x20: 0000000000000000 x19: 1fffe0001b2418fd x18: 0000000000000000 [ 50.028531][ T5284] x17: 0000000000000000 x16: ffff8000113710a0 x15: 0000000000000000 [ 50.030199][ T5284] x14: 0000000000000001 x13: 1fffe000341ca7ab x12: 0000000000000000 [ 50.031852][ T5284] x11: ff80800008300a7c x10: 0000000000000000 x9 : 5a49e6f2db575900 [ 50.033706][ T5284] x8 : 5a49e6f2db575900 x7 : 0000000000000001 x6 : 0000000000000001 [ 50.035415][ T5284] x5 : ffff800022d86ef8 x4 : ffff80001448f520 x3 : ffff800008510b80 [ 50.037151][ T5284] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 50.038944][ T5284] Call trace: [ 50.039674][ T5284] btrfs_commit_transaction+0x1e20/0x30ac [ 50.040733][ T5284] btrfs_sync_fs+0x240/0xb2c [ 50.041615][ T5284] sync_filesystem+0x1a0/0x218 [ 50.042612][ T5284] btrfs_remount+0x190/0x12ac [ 50.043586][ T5284] legacy_reconfigure+0xfc/0x114 [ 50.044654][ T5284] reconfigure_super+0x1d0/0x6c4 [ 50.045754][ T5284] path_mount+0xd20/0xfe8 [ 50.046636][ T5284] __arm64_sys_mount+0x488/0x5f8 [ 50.047823][ T5284] invoke_syscall+0x98/0x28c [ 50.048863][ T5284] el0_svc_common+0x13c/0x258 [ 50.049877][ T5284] do_el0_svc+0x5c/0x140 [ 50.050812][ T5284] el0_svc+0x78/0x1d0 [ 50.051644][ T5284] el0t_64_sync_handler+0xcc/0xe4 [ 50.052678][ T5284] el0t_64_sync+0x1a0/0x1a4 [ 50.053608][ T5284] irq event stamp: 79922 [ 50.054465][ T5284] hardirqs last enabled at (79921): [] __up_console_sem+0xb4/0xfc [ 50.056475][ T5284] hardirqs last disabled at (79922): [] el1_dbg+0x24/0x80 [ 50.058316][ T5284] softirqs last enabled at (79892): [] handle_softirqs+0xa70/0xc14 [ 50.060344][ T5284] softirqs last disabled at (79883): [] __irq_exit_rcu+0x240/0x434 [ 50.062216][ T5284] ---[ end trace 9e0292fa3ae15068 ]--- [ 50.064899][ T5284] BTRFS: error (device loop0) in cleanup_transaction:2021: errno=-12 Out of memory [ 50.067034][ T5284] BTRFS error (device loop0): Remounting read-write after error is not allowed [ 50.242538][ T5306] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5306) [ 50.269852][ T5306] FAULT_INJECTION: forcing a failure. [ 50.269852][ T5306] name failslab, interval 1, probability 0, space 0, times 0 [ 50.272382][ T5306] CPU: 1 PID: 5306 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 50.274254][ T5306] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 50.276658][ T5306] Call trace: [ 50.277370][ T5306] dump_backtrace+0x0/0x458 [ 50.278376][ T5306] show_stack+0x2c/0x3c [ 50.279274][ T5306] __dump_stack+0x30/0x40 [ 50.280155][ T5306] dump_stack_lvl+0xf4/0x15c [ 50.281255][ T5306] dump_stack+0x1c/0x5c [ 50.282215][ T5306] should_fail+0x3c8/0x520 [ 50.283239][ T5306] __should_failslab+0xbc/0x10c [ 50.284320][ T5306] should_failslab+0x10/0x28 [ 50.285342][ T5306] slab_pre_alloc_hook+0x64/0xe8 [ 50.286420][ T5306] kmem_cache_alloc+0x94/0x3d8 [ 50.287477][ T5306] start_transaction+0x530/0x1438 [ 50.288505][ T5306] btrfs_attach_transaction_barrier+0x30/0xac [ 50.289780][ T5306] btrfs_sync_fs+0x13c/0xb2c [ 50.290726][ T5306] sync_filesystem+0x1a0/0x218 [ 50.291732][ T5306] btrfs_remount+0x190/0x12ac [ 50.292638][ T5306] legacy_reconfigure+0xfc/0x114 [ 50.293815][ T5306] reconfigure_super+0x1d0/0x6c4 [ 50.294889][ T5306] path_mount+0xd20/0xfe8 [ 50.295930][ T5306] __arm64_sys_mount+0x488/0x5f8 [ 50.297079][ T5306] invoke_syscall+0x98/0x28c [ 50.297988][ T5306] el0_svc_common+0x13c/0x258 [ 50.298960][ T5306] do_el0_svc+0x5c/0x140 [ 50.299790][ T5306] el0_svc+0x78/0x1d0 [ 50.300558][ T5306] el0t_64_sync_handler+0xcc/0xe4 [ 50.301443][ T5306] el0t_64_sync+0x1a0/0x1a4 [ 50.515426][ T5328] set_capacity_and_notify: 9 callbacks suppressed [ 50.515435][ T5328] loop0: detected capacity change from 0 to 32768 [ 50.519914][ T5328] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5328) [ 50.525969][ T5328] btrfs_printk: 131 callbacks suppressed [ 50.525978][ T5328] BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm [ 50.528824][ T5328] BTRFS info (device loop0): force clearing of disk cache [ 50.530266][ T5328] BTRFS info (device loop0): setting nodatasum [ 50.531628][ T5328] BTRFS info (device loop0): allowing degraded mounts [ 50.533025][ T5328] BTRFS info (device loop0): enabling disk space caching [ 50.534524][ T5328] BTRFS info (device loop0): disk space caching is enabled [ 50.536565][ T5328] BTRFS info (device loop0): has skinny extents [ 50.547919][ T5328] BTRFS info (device loop0): enabling ssd optimizations [ 50.550031][ T5328] BTRFS info (device loop0): clearing free space tree [ 50.551577][ T5328] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 50.553642][ T5328] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 50.558313][ T5328] BTRFS info (device loop0): checking UUID tree [ 50.561272][ T5328] FAULT_INJECTION: forcing a failure. [ 50.561272][ T5328] name failslab, interval 1, probability 0, space 0, times 0 [ 50.563997][ T5328] CPU: 1 PID: 5328 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 50.565999][ T5328] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 50.568217][ T5328] Call trace: [ 50.568946][ T5328] dump_backtrace+0x0/0x458 [ 50.569952][ T5328] show_stack+0x2c/0x3c [ 50.570884][ T5328] __dump_stack+0x30/0x40 [ 50.571791][ T5328] dump_stack_lvl+0xf4/0x15c [ 50.572766][ T5328] dump_stack+0x1c/0x5c [ 50.573679][ T5328] should_fail+0x3c8/0x520 [ 50.574630][ T5328] __should_failslab+0xbc/0x10c [ 50.575587][ T5328] should_failslab+0x10/0x28 [ 50.576524][ T5328] slab_pre_alloc_hook+0x64/0xe8 [ 50.577568][ T5328] kmem_cache_alloc+0x94/0x3d8 [ 50.578535][ T5328] start_transaction+0x530/0x1438 [ 50.579538][ T5328] btrfs_attach_transaction_barrier+0x30/0xac [ 50.580801][ T5328] btrfs_sync_fs+0x13c/0xb2c [ 50.581738][ T5328] sync_filesystem+0x1a0/0x218 [ 50.582747][ T5328] btrfs_remount+0x190/0x12ac [ 50.583694][ T5328] legacy_reconfigure+0xfc/0x114 [ 50.584721][ T5328] reconfigure_super+0x1d0/0x6c4 [ 50.585713][ T5328] path_mount+0xd20/0xfe8 [ 50.586587][ T5328] __arm64_sys_mount+0x488/0x5f8 [ 50.587604][ T5328] invoke_syscall+0x98/0x28c [ 50.588561][ T5328] el0_svc_common+0x13c/0x258 [ 50.589530][ T5328] do_el0_svc+0x5c/0x140 [ 50.590414][ T5328] el0_svc+0x78/0x1d0 [ 50.591252][ T5328] el0t_64_sync_handler+0xcc/0xe4 [ 50.592306][ T5328] el0t_64_sync+0x1a0/0x1a4 [ 50.771899][ T5350] loop0: detected capacity change from 0 to 32768 [ 50.774922][ T5350] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5350) [ 50.778901][ T5350] BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm [ 50.780709][ T5350] BTRFS info (device loop0): force clearing of disk cache [ 50.782298][ T5350] BTRFS info (device loop0): setting nodatasum [ 50.783659][ T5350] BTRFS info (device loop0): allowing degraded mounts [ 50.785414][ T5350] BTRFS info (device loop0): enabling disk space caching [ 50.786991][ T5350] BTRFS info (device loop0): disk space caching is enabled [ 50.788734][ T5350] BTRFS info (device loop0): has skinny extents [ 50.798500][ T5350] BTRFS info (device loop0): enabling ssd optimizations [ 50.800538][ T5350] BTRFS info (device loop0): clearing free space tree [ 50.802093][ T5350] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 50.804354][ T5350] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 50.809285][ T5350] BTRFS info (device loop0): checking UUID tree [ 50.812245][ T5350] FAULT_INJECTION: forcing a failure. [ 50.812245][ T5350] name failslab, interval 1, probability 0, space 0, times 0 [ 50.815138][ T5350] CPU: 0 PID: 5350 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 50.817090][ T5350] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 50.819510][ T5350] Call trace: [ 50.820300][ T5350] dump_backtrace+0x0/0x458 [ 50.821394][ T5350] show_stack+0x2c/0x3c [ 50.822313][ T5350] __dump_stack+0x30/0x40 [ 50.823250][ T5350] dump_stack_lvl+0xf4/0x15c [ 50.824258][ T5350] dump_stack+0x1c/0x5c [ 50.825171][ T5350] should_fail+0x3c8/0x520 [ 50.826136][ T5350] __should_failslab+0xbc/0x10c [ 50.827169][ T5350] should_failslab+0x10/0x28 [ 50.828153][ T5350] slab_pre_alloc_hook+0x64/0xe8 [ 50.829206][ T5350] kmem_cache_alloc_trace+0x98/0x3f0 [ 50.830356][ T5350] bdi_split_work_to_wbs+0x3f8/0x77c [ 50.831661][ T5350] __writeback_inodes_sb_nr+0x1ac/0x224 [ 50.832778][ T5350] writeback_inodes_sb+0x78/0x8c [ 50.833779][ T5350] sync_filesystem+0xa0/0x218 [ 50.834729][ T5350] btrfs_remount+0x190/0x12ac [ 50.835687][ T5350] legacy_reconfigure+0xfc/0x114 [ 50.836698][ T5350] reconfigure_super+0x1d0/0x6c4 [ 50.837696][ T5350] path_mount+0xd20/0xfe8 [ 50.838597][ T5350] __arm64_sys_mount+0x488/0x5f8 [ 50.839617][ T5350] invoke_syscall+0x98/0x28c [ 50.840571][ T5350] el0_svc_common+0x13c/0x258 [ 50.841553][ T5350] do_el0_svc+0x5c/0x140 [ 50.842421][ T5350] el0_svc+0x78/0x1d0 [ 50.843226][ T5350] el0t_64_sync_handler+0xcc/0xe4 [ 50.844194][ T5350] el0t_64_sync+0x1a0/0x1a4 [ 51.041106][ T5372] loop0: detected capacity change from 0 to 32768 [ 51.044037][ T5372] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5372) [ 51.049051][ T5372] BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm [ 51.051148][ T5372] BTRFS info (device loop0): force clearing of disk cache [ 51.052767][ T5372] BTRFS info (device loop0): setting nodatasum [ 51.054277][ T5372] BTRFS info (device loop0): allowing degraded mounts [ 51.055906][ T5372] BTRFS info (device loop0): enabling disk space caching [ 51.057523][ T5372] BTRFS info (device loop0): disk space caching is enabled [ 51.059240][ T5372] BTRFS info (device loop0): has skinny extents [ 51.068183][ T5372] BTRFS info (device loop0): enabling ssd optimizations [ 51.070202][ T5372] BTRFS info (device loop0): clearing free space tree [ 51.071787][ T5372] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 51.074013][ T5372] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 51.078871][ T5372] BTRFS info (device loop0): checking UUID tree [ 51.081964][ T5372] FAULT_INJECTION: forcing a failure. [ 51.081964][ T5372] name failslab, interval 1, probability 0, space 0, times 0 [ 51.084611][ T5372] CPU: 1 PID: 5372 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 51.086660][ T5372] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 51.088915][ T5372] Call trace: [ 51.089596][ T5372] dump_backtrace+0x0/0x458 [ 51.090485][ T5372] show_stack+0x2c/0x3c [ 51.091340][ T5372] __dump_stack+0x30/0x40 [ 51.092246][ T5372] dump_stack_lvl+0xf4/0x15c [ 51.093233][ T5372] dump_stack+0x1c/0x5c [ 51.094100][ T5372] should_fail+0x3c8/0x520 [ 51.095051][ T5372] __should_failslab+0xbc/0x10c [ 51.096101][ T5372] should_failslab+0x10/0x28 [ 51.097075][ T5372] slab_pre_alloc_hook+0x64/0xe8 [ 51.098128][ T5372] kmem_cache_alloc+0x94/0x3d8 [ 51.099125][ T5372] btrfs_alloc_path+0x5c/0x68 [ 51.100113][ T5372] __btrfs_run_delayed_items+0x88/0x478 [ 51.101292][ T5372] btrfs_run_delayed_items+0x24/0x34 [ 51.102402][ T5372] btrfs_commit_transaction+0x7f8/0x30ac [ 51.103552][ T5372] btrfs_sync_fs+0x240/0xb2c [ 51.104529][ T5372] sync_filesystem+0x1a0/0x218 [ 51.105516][ T5372] btrfs_remount+0x190/0x12ac [ 51.106478][ T5372] legacy_reconfigure+0xfc/0x114 [ 51.107506][ T5372] reconfigure_super+0x1d0/0x6c4 [ 51.108505][ T5372] path_mount+0xd20/0xfe8 [ 51.109393][ T5372] __arm64_sys_mount+0x488/0x5f8 [ 51.110570][ T5372] invoke_syscall+0x98/0x28c [ 51.111712][ T5372] el0_svc_common+0x13c/0x258 [ 51.112745][ T5372] do_el0_svc+0x5c/0x140 [ 51.113626][ T5372] el0_svc+0x78/0x1d0 [ 51.114469][ T5372] el0t_64_sync_handler+0xcc/0xe4 [ 51.115568][ T5372] el0t_64_sync+0x1a0/0x1a4 [ 51.116926][ T5372] BTRFS warning (device loop0): Skipping commit of aborted transaction. [ 51.118781][ T5372] ------------[ cut here ]------------ [ 51.120182][ T5372] WARNING: CPU: 1 PID: 5372 at fs/btrfs/transaction.c:2021 btrfs_commit_transaction+0x1e20/0x30ac [ 51.122560][ T5372] Modules linked in: [ 51.123441][ T5372] CPU: 1 PID: 5372 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 51.125464][ T5372] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 51.127674][ T5372] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 51.129402][ T5372] pc : btrfs_commit_transaction+0x1e20/0x30ac [ 51.130725][ T5372] lr : btrfs_commit_transaction+0x1e20/0x30ac [ 51.131976][ T5372] sp : ffff8000232475e0 [ 51.132806][ T5372] x29: ffff800023247820 x28: ffff0000de9bf160 x27: dfff800000000000 [ 51.134492][ T5372] x26: ffff700004648ed4 x25: ffff0000d6f49168 x24: ffff0000d6bf59d0 [ 51.136114][ T5372] x23: 00000000fffffff4 x22: ffff0000c27ed000 x21: ffff0000d6bf4000 [ 51.137710][ T5372] x20: 0000000000000000 x19: 1fffe0001ade922d x18: 0000000000000000 [ 51.139272][ T5372] x17: 0000000000000000 x16: ffff8000113710a0 x15: 0000000000000000 [ 51.140964][ T5372] x14: 0000000000000001 x13: 1fffe000341ce9ab x12: 0000000000000000 [ 51.142617][ T5372] x11: ff80800008300a7c x10: 0000000000000000 x9 : 690c9a32d6887c00 [ 51.144318][ T5372] x8 : 690c9a32d6887c00 x7 : 0000000000000001 x6 : 0000000000000001 [ 51.146028][ T5372] x5 : ffff800023246ef8 x4 : ffff80001448f520 x3 : ffff800008510b80 [ 51.147745][ T5372] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 51.149407][ T5372] Call trace: [ 51.150056][ T5372] btrfs_commit_transaction+0x1e20/0x30ac [ 51.151210][ T5372] btrfs_sync_fs+0x240/0xb2c [ 51.152161][ T5372] sync_filesystem+0x1a0/0x218 [ 51.153172][ T5372] btrfs_remount+0x190/0x12ac [ 51.154123][ T5372] legacy_reconfigure+0xfc/0x114 [ 51.155140][ T5372] reconfigure_super+0x1d0/0x6c4 [ 51.156135][ T5372] path_mount+0xd20/0xfe8 [ 51.157002][ T5372] __arm64_sys_mount+0x488/0x5f8 [ 51.158020][ T5372] invoke_syscall+0x98/0x28c [ 51.158991][ T5372] el0_svc_common+0x13c/0x258 [ 51.159963][ T5372] do_el0_svc+0x5c/0x140 [ 51.160822][ T5372] el0_svc+0x78/0x1d0 [ 51.161645][ T5372] el0t_64_sync_handler+0xcc/0xe4 [ 51.162656][ T5372] el0t_64_sync+0x1a0/0x1a4 [ 51.163547][ T5372] irq event stamp: 80364 [ 51.164431][ T5372] hardirqs last enabled at (80363): [] __up_console_sem+0xb4/0xfc [ 51.166382][ T5372] hardirqs last disabled at (80364): [] el1_dbg+0x24/0x80 [ 51.168026][ T5372] softirqs last enabled at (80326): [] handle_softirqs+0xa70/0xc14 [ 51.169975][ T5372] softirqs last disabled at (80167): [] __irq_exit_rcu+0x240/0x434 [ 51.171930][ T5372] ---[ end trace 9e0292fa3ae15069 ]--- [ 51.173588][ T5372] BTRFS: error (device loop0) in cleanup_transaction:2021: errno=-12 Out of memory [ 51.175637][ T5372] BTRFS info (device loop0): forced readonly [ 51.177157][ T5372] BTRFS error (device loop0): Remounting read-write after error is not allowed [ 51.362365][ T5394] loop0: detected capacity change from 0 to 32768 [ 51.366277][ T5394] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5394) [ 51.372437][ T5394] BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm [ 51.374293][ T5394] BTRFS info (device loop0): force clearing of disk cache [ 51.375960][ T5394] BTRFS info (device loop0): setting nodatasum [ 51.377259][ T5394] BTRFS info (device loop0): allowing degraded mounts [ 51.378635][ T5394] BTRFS info (device loop0): enabling disk space caching [ 51.380034][ T5394] BTRFS info (device loop0): disk space caching is enabled [ 51.381451][ T5394] BTRFS info (device loop0): has skinny extents [ 51.393374][ T5394] BTRFS info (device loop0): enabling ssd optimizations [ 51.395397][ T5394] BTRFS info (device loop0): clearing free space tree [ 51.396988][ T5394] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 51.399246][ T5394] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 51.403466][ T5394] BTRFS info (device loop0): checking UUID tree [ 51.410436][ T5394] FAULT_INJECTION: forcing a failure. [ 51.410436][ T5394] name failslab, interval 1, probability 0, space 0, times 0 [ 51.413136][ T5394] CPU: 0 PID: 5394 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 51.414976][ T5394] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 51.417128][ T5394] Call trace: [ 51.417793][ T5394] dump_backtrace+0x0/0x458 [ 51.418733][ T5394] show_stack+0x2c/0x3c [ 51.419551][ T5394] __dump_stack+0x30/0x40 [ 51.420395][ T5394] dump_stack_lvl+0xf4/0x15c [ 51.421261][ T5394] dump_stack+0x1c/0x5c [ 51.422077][ T5394] should_fail+0x3c8/0x520 [ 51.422949][ T5394] __should_failslab+0xbc/0x10c [ 51.423929][ T5394] should_failslab+0x10/0x28 [ 51.424878][ T5394] slab_pre_alloc_hook+0x64/0xe8 [ 51.425881][ T5394] kmem_cache_alloc+0x94/0x3d8 [ 51.426858][ T5394] btrfs_alloc_path+0x5c/0x68 [ 51.427816][ T5394] __btrfs_run_delayed_items+0x88/0x478 [ 51.428917][ T5394] btrfs_run_delayed_items+0x24/0x34 [ 51.429999][ T5394] btrfs_commit_transaction+0x7f8/0x30ac [ 51.431095][ T5394] btrfs_sync_fs+0x240/0xb2c [ 51.432055][ T5394] sync_filesystem+0x1a0/0x218 [ 51.433009][ T5394] btrfs_remount+0x190/0x12ac [ 51.433930][ T5394] legacy_reconfigure+0xfc/0x114 [ 51.434942][ T5394] reconfigure_super+0x1d0/0x6c4 [ 51.435955][ T5394] path_mount+0xd20/0xfe8 [ 51.436856][ T5394] __arm64_sys_mount+0x488/0x5f8 [ 51.437827][ T5394] invoke_syscall+0x98/0x28c [ 51.438759][ T5394] el0_svc_common+0x13c/0x258 [ 51.439720][ T5394] do_el0_svc+0x5c/0x140 [ 51.440599][ T5394] el0_svc+0x78/0x1d0 [ 51.441400][ T5394] el0t_64_sync_handler+0xcc/0xe4 [ 51.442450][ T5394] el0t_64_sync+0x1a0/0x1a4 [ 51.444144][ T5394] BTRFS warning (device loop0): Skipping commit of aborted transaction. [ 51.446044][ T5394] ------------[ cut here ]------------ [ 51.447511][ T5394] WARNING: CPU: 0 PID: 5394 at fs/btrfs/transaction.c:2021 btrfs_commit_transaction+0x1e20/0x30ac [ 51.449755][ T5394] Modules linked in: [ 51.450602][ T5394] CPU: 0 PID: 5394 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 51.452731][ T5394] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 51.454767][ T5394] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 51.456355][ T5394] pc : btrfs_commit_transaction+0x1e20/0x30ac [ 51.457546][ T5394] lr : btrfs_commit_transaction+0x1e20/0x30ac [ 51.458737][ T5394] sp : ffff800022de75e0 [ 51.459563][ T5394] x29: ffff800022de7820 x28: ffff0000d24a8a50 x27: dfff800000000000 [ 51.461191][ T5394] x26: ffff7000045bced4 x25: ffff0000c9992ca8 x24: ffff0000dbc7d9d0 [ 51.462885][ T5394] x23: 00000000fffffff4 x22: ffff0000c1f72000 x21: ffff0000dbc7c000 [ 51.464726][ T5394] x20: 0000000000000000 x19: 1fffe00019332595 x18: 0000000000000000 [ 51.466560][ T5394] x17: 0000000000000000 x16: ffff8000113710a0 x15: 0000000000000000 [ 51.468303][ T5394] x14: 0000000000000001 x13: 1fffe000341ca7ab x12: 0000000000000000 [ 51.469996][ T5394] x11: ff80800008300a7c x10: 0000000000000000 x9 : b458beb425423c00 [ 51.471620][ T5394] x8 : b458beb425423c00 x7 : 0000000000000001 x6 : 0000000000000001 [ 51.473149][ T5394] x5 : ffff800022de6ef8 x4 : ffff80001448f520 x3 : ffff800008510b80 [ 51.474802][ T5394] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 51.476473][ T5394] Call trace: [ 51.477152][ T5394] btrfs_commit_transaction+0x1e20/0x30ac [ 51.478326][ T5394] btrfs_sync_fs+0x240/0xb2c [ 51.479241][ T5394] sync_filesystem+0x1a0/0x218 [ 51.480226][ T5394] btrfs_remount+0x190/0x12ac [ 51.481206][ T5394] legacy_reconfigure+0xfc/0x114 [ 51.482237][ T5394] reconfigure_super+0x1d0/0x6c4 [ 51.483304][ T5394] path_mount+0xd20/0xfe8 [ 51.484208][ T5394] __arm64_sys_mount+0x488/0x5f8 [ 51.485183][ T5394] invoke_syscall+0x98/0x28c [ 51.486099][ T5394] el0_svc_common+0x13c/0x258 [ 51.487104][ T5394] do_el0_svc+0x5c/0x140 [ 51.487978][ T5394] el0_svc+0x78/0x1d0 [ 51.488819][ T5394] el0t_64_sync_handler+0xcc/0xe4 [ 51.489840][ T5394] el0t_64_sync+0x1a0/0x1a4 [ 51.490682][ T5394] irq event stamp: 81184 [ 51.491550][ T5394] hardirqs last enabled at (81183): [] __up_console_sem+0xb4/0xfc [ 51.493556][ T5394] hardirqs last disabled at (81184): [] el1_dbg+0x24/0x80 [ 51.495423][ T5394] softirqs last enabled at (81160): [] handle_softirqs+0xa70/0xc14 [ 51.497474][ T5394] softirqs last disabled at (81149): [] __irq_exit_rcu+0x240/0x434 [ 51.499468][ T5394] ---[ end trace 9e0292fa3ae1506a ]--- [ 51.500865][ T5394] BTRFS: error (device loop0) in cleanup_transaction:2021: errno=-12 Out of memory [ 51.502708][ T5394] BTRFS info (device loop0): forced readonly [ 51.503893][ T5394] BTRFS error (device loop0): Remounting read-write after error is not allowed [ 51.714293][ T5416] loop0: detected capacity change from 0 to 32768 [ 51.717736][ T5416] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5416) [ 51.722125][ T5416] BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm [ 51.724153][ T5416] BTRFS info (device loop0): force clearing of disk cache [ 51.725871][ T5416] BTRFS info (device loop0): setting nodatasum [ 51.727112][ T5416] BTRFS info (device loop0): allowing degraded mounts [ 51.728596][ T5416] BTRFS info (device loop0): enabling disk space caching [ 51.730056][ T5416] BTRFS info (device loop0): disk space caching is enabled [ 51.731853][ T5416] BTRFS info (device loop0): has skinny extents [ 51.742567][ T5416] BTRFS info (device loop0): enabling ssd optimizations [ 51.744635][ T5416] BTRFS info (device loop0): clearing free space tree [ 51.746732][ T5416] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 51.748870][ T5416] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 51.753136][ T5416] BTRFS info (device loop0): checking UUID tree [ 51.756859][ T5416] FAULT_INJECTION: forcing a failure. [ 51.756859][ T5416] name failslab, interval 1, probability 0, space 0, times 0 [ 51.759603][ T5416] CPU: 1 PID: 5416 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 51.761574][ T5416] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 51.763770][ T5416] Call trace: [ 51.764434][ T5416] dump_backtrace+0x0/0x458 [ 51.765360][ T5416] show_stack+0x2c/0x3c [ 51.766218][ T5416] __dump_stack+0x30/0x40 [ 51.767058][ T5416] dump_stack_lvl+0xf4/0x15c [ 51.767967][ T5416] dump_stack+0x1c/0x5c [ 51.768813][ T5416] should_fail+0x3c8/0x520 [ 51.769752][ T5416] __should_failslab+0xbc/0x10c [ 51.770766][ T5416] should_failslab+0x10/0x28 [ 51.771666][ T5416] slab_pre_alloc_hook+0x64/0xe8 [ 51.772700][ T5416] kmem_cache_alloc_trace+0x98/0x3f0 [ 51.773755][ T5416] bdi_split_work_to_wbs+0x3f8/0x77c [ 51.774819][ T5416] __writeback_inodes_sb_nr+0x1ac/0x224 [ 51.776018][ T5416] writeback_inodes_sb+0x78/0x8c [ 51.777112][ T5416] sync_filesystem+0xa0/0x218 [ 51.778087][ T5416] btrfs_remount+0x190/0x12ac [ 51.779019][ T5416] legacy_reconfigure+0xfc/0x114 [ 51.780049][ T5416] reconfigure_super+0x1d0/0x6c4 [ 51.781103][ T5416] path_mount+0xd20/0xfe8 [ 51.782002][ T5416] __arm64_sys_mount+0x488/0x5f8 [ 51.783126][ T5416] invoke_syscall+0x98/0x28c [ 51.784129][ T5416] el0_svc_common+0x13c/0x258 [ 51.785075][ T5416] do_el0_svc+0x5c/0x140 [ 51.786026][ T5416] el0_svc+0x78/0x1d0 [ 51.786942][ T5416] el0t_64_sync_handler+0xcc/0xe4 [ 51.788023][ T5416] el0t_64_sync+0x1a0/0x1a4 [ 51.973452][ T5438] loop0: detected capacity change from 0 to 32768 [ 51.976863][ T5438] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5438) [ 51.980726][ T5438] BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm [ 51.982659][ T5438] BTRFS info (device loop0): force clearing of disk cache [ 51.984044][ T5438] BTRFS info (device loop0): setting nodatasum [ 51.985388][ T5438] BTRFS info (device loop0): allowing degraded mounts [ 51.987015][ T5438] BTRFS info (device loop0): enabling disk space caching [ 51.988518][ T5438] BTRFS info (device loop0): disk space caching is enabled [ 51.990088][ T5438] BTRFS info (device loop0): has skinny extents [ 52.002284][ T5438] BTRFS info (device loop0): enabling ssd optimizations [ 52.004156][ T5438] BTRFS info (device loop0): clearing free space tree [ 52.006052][ T5438] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 52.007857][ T5438] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 52.011355][ T5438] BTRFS info (device loop0): checking UUID tree [ 52.014537][ T5438] FAULT_INJECTION: forcing a failure. [ 52.014537][ T5438] name failslab, interval 1, probability 0, space 0, times 0 [ 52.017701][ T5438] CPU: 0 PID: 5438 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 52.019463][ T5438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 52.021478][ T5438] Call trace: [ 52.022083][ T5438] dump_backtrace+0x0/0x458 [ 52.022920][ T5438] show_stack+0x2c/0x3c [ 52.023730][ T5438] __dump_stack+0x30/0x40 [ 52.024600][ T5438] dump_stack_lvl+0xf4/0x15c [ 52.025578][ T5438] dump_stack+0x1c/0x5c [ 52.026503][ T5438] should_fail+0x3c8/0x520 [ 52.027459][ T5438] __should_failslab+0xbc/0x10c [ 52.028525][ T5438] should_failslab+0x10/0x28 [ 52.029531][ T5438] slab_pre_alloc_hook+0x64/0xe8 [ 52.030578][ T5438] kmem_cache_alloc+0x94/0x3d8 [ 52.031586][ T5438] start_transaction+0x530/0x1438 [ 52.032670][ T5438] btrfs_attach_transaction_barrier+0x30/0xac [ 52.033967][ T5438] btrfs_sync_fs+0x13c/0xb2c [ 52.034897][ T5438] sync_filesystem+0x1a0/0x218 [ 52.035881][ T5438] btrfs_remount+0x190/0x12ac [ 52.036845][ T5438] legacy_reconfigure+0xfc/0x114 [ 52.037848][ T5438] reconfigure_super+0x1d0/0x6c4 [ 52.038907][ T5438] path_mount+0xd20/0xfe8 [ 52.039935][ T5438] __arm64_sys_mount+0x488/0x5f8 [ 52.041054][ T5438] invoke_syscall+0x98/0x28c [ 52.042108][ T5438] el0_svc_common+0x13c/0x258 [ 52.043253][ T5438] do_el0_svc+0x5c/0x140 [ 52.044188][ T5438] el0_svc+0x78/0x1d0 [ 52.044999][ T5438] el0t_64_sync_handler+0xcc/0xe4 [ 52.046014][ T5438] el0t_64_sync+0x1a0/0x1a4 [ 52.252007][ T5460] loop0: detected capacity change from 0 to 32768 [ 52.255029][ T5460] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5460) [ 52.258984][ T5460] BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm [ 52.261079][ T5460] BTRFS info (device loop0): force clearing of disk cache [ 52.262542][ T5460] BTRFS info (device loop0): setting nodatasum [ 52.263726][ T5460] BTRFS info (device loop0): allowing degraded mounts [ 52.266018][ T5460] BTRFS info (device loop0): enabling disk space caching [ 52.267599][ T5460] BTRFS info (device loop0): disk space caching is enabled [ 52.269373][ T5460] BTRFS info (device loop0): has skinny extents [ 52.278832][ T5460] BTRFS info (device loop0): enabling ssd optimizations [ 52.280792][ T5460] BTRFS info (device loop0): clearing free space tree [ 52.282369][ T5460] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 52.284548][ T5460] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 52.289308][ T5460] BTRFS info (device loop0): checking UUID tree [ 52.292157][ T5460] FAULT_INJECTION: forcing a failure. [ 52.292157][ T5460] name failslab, interval 1, probability 0, space 0, times 0 [ 52.295256][ T5460] CPU: 1 PID: 5460 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 52.297226][ T5460] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 52.299538][ T5460] Call trace: [ 52.300272][ T5460] dump_backtrace+0x0/0x458 [ 52.301284][ T5460] show_stack+0x2c/0x3c [ 52.302194][ T5460] __dump_stack+0x30/0x40 [ 52.303164][ T5460] dump_stack_lvl+0xf4/0x15c [ 52.304202][ T5460] dump_stack+0x1c/0x5c [ 52.305077][ T5460] should_fail+0x3c8/0x520 [ 52.305999][ T5460] __should_failslab+0xbc/0x10c [ 52.307126][ T5460] should_failslab+0x10/0x28 [ 52.308143][ T5460] slab_pre_alloc_hook+0x64/0xe8 [ 52.309209][ T5460] kmem_cache_alloc_trace+0x98/0x3f0 [ 52.310403][ T5460] bdi_split_work_to_wbs+0x3f8/0x77c [ 52.311440][ T5460] __writeback_inodes_sb_nr+0x1ac/0x224 [ 52.312457][ T5460] writeback_inodes_sb+0x78/0x8c [ 52.313483][ T5460] sync_filesystem+0xa0/0x218 [ 52.314476][ T5460] btrfs_remount+0x190/0x12ac [ 52.315644][ T5460] legacy_reconfigure+0xfc/0x114 [ 52.316669][ T5460] reconfigure_super+0x1d0/0x6c4 [ 52.317715][ T5460] path_mount+0xd20/0xfe8 [ 52.318637][ T5460] __arm64_sys_mount+0x488/0x5f8 [ 52.319593][ T5460] invoke_syscall+0x98/0x28c [ 52.320568][ T5460] el0_svc_common+0x13c/0x258 [ 52.321548][ T5460] do_el0_svc+0x5c/0x140 [ 52.322416][ T5460] el0_svc+0x78/0x1d0 [ 52.323248][ T5460] el0t_64_sync_handler+0xcc/0xe4 [ 52.324267][ T5460] el0t_64_sync+0x1a0/0x1a4 [ 52.513965][ T5482] loop0: detected capacity change from 0 to 32768 [ 52.517245][ T5482] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5482) [ 52.521294][ T5482] BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm [ 52.523167][ T5482] BTRFS info (device loop0): force clearing of disk cache [ 52.524579][ T5482] BTRFS info (device loop0): setting nodatasum [ 52.526592][ T5482] BTRFS info (device loop0): allowing degraded mounts [ 52.528052][ T5482] BTRFS info (device loop0): enabling disk space caching [ 52.529626][ T5482] BTRFS info (device loop0): disk space caching is enabled [ 52.531114][ T5482] BTRFS info (device loop0): has skinny extents [ 52.540867][ T5482] BTRFS info (device loop0): enabling ssd optimizations [ 52.542600][ T5482] BTRFS info (device loop0): clearing free space tree [ 52.544054][ T5482] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 52.546997][ T5482] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 52.552607][ T5482] BTRFS info (device loop0): checking UUID tree [ 52.556449][ T5482] FAULT_INJECTION: forcing a failure. [ 52.556449][ T5482] name failslab, interval 1, probability 0, space 0, times 0 [ 52.559099][ T5482] CPU: 1 PID: 5482 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 52.560952][ T5482] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 52.562919][ T5482] Call trace: [ 52.563518][ T5482] dump_backtrace+0x0/0x458 [ 52.564395][ T5482] show_stack+0x2c/0x3c [ 52.565232][ T5482] __dump_stack+0x30/0x40 [ 52.566285][ T5482] dump_stack_lvl+0xf4/0x15c [ 52.567364][ T5482] dump_stack+0x1c/0x5c [ 52.568260][ T5482] should_fail+0x3c8/0x520 [ 52.569200][ T5482] __should_failslab+0xbc/0x10c [ 52.570210][ T5482] should_failslab+0x10/0x28 [ 52.571199][ T5482] slab_pre_alloc_hook+0x64/0xe8 [ 52.572191][ T5482] kmem_cache_alloc+0x94/0x3d8 [ 52.573184][ T5482] getname_flags+0xb8/0x44c [ 52.574123][ T5482] getname+0x28/0x38 [ 52.574874][ T5482] do_sys_openat2+0xdc/0x3fc [ 52.575848][ T5482] __arm64_sys_openat+0x11c/0x150 [ 52.577069][ T5482] invoke_syscall+0x98/0x28c [ 52.578084][ T5482] el0_svc_common+0x13c/0x258 [ 52.579160][ T5482] do_el0_svc+0x5c/0x140 [ 52.580093][ T5482] el0_svc+0x78/0x1d0 [ 52.581024][ T5482] el0t_64_sync_handler+0xcc/0xe4 [ 52.582208][ T5482] el0t_64_sync+0x1a0/0x1a4 [ 52.771660][ T5504] loop0: detected capacity change from 0 to 32768 [ 52.776847][ T5504] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5504) [ 52.786086][ T5504] BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm [ 52.788038][ T5504] BTRFS info (device loop0): force clearing of disk cache [ 52.850320][ T5504] FAULT_INJECTION: forcing a failure. [ 52.850320][ T5504] name failslab, interval 1, probability 0, space 0, times 0 [ 52.852941][ T5504] CPU: 1 PID: 5504 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 52.854660][ T5504] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 52.856740][ T5504] Call trace: [ 52.857413][ T5504] dump_backtrace+0x0/0x458 [ 52.858373][ T5504] show_stack+0x2c/0x3c [ 52.859271][ T5504] __dump_stack+0x30/0x40 [ 52.860082][ T5504] dump_stack_lvl+0xf4/0x15c [ 52.861132][ T5504] dump_stack+0x1c/0x5c [ 52.862072][ T5504] should_fail+0x3c8/0x520 [ 52.863003][ T5504] __should_failslab+0xbc/0x10c [ 52.863981][ T5504] should_failslab+0x10/0x28 [ 52.864916][ T5504] slab_pre_alloc_hook+0x64/0xe8 [ 52.865977][ T5504] kmem_cache_alloc+0x94/0x3d8 [ 52.866965][ T5504] start_transaction+0x530/0x1438 [ 52.868012][ T5504] btrfs_attach_transaction_barrier+0x30/0xac [ 52.869308][ T5504] btrfs_sync_fs+0x13c/0xb2c [ 52.870283][ T5504] sync_filesystem+0x1a0/0x218 [ 52.871280][ T5504] btrfs_remount+0x190/0x12ac [ 52.872290][ T5504] legacy_reconfigure+0xfc/0x114 [ 52.873354][ T5504] reconfigure_super+0x1d0/0x6c4 [ 52.874423][ T5504] path_mount+0xd20/0xfe8 [ 52.875238][ T5504] __arm64_sys_mount+0x488/0x5f8 [ 52.876200][ T5504] invoke_syscall+0x98/0x28c [ 52.877057][ T5504] el0_svc_common+0x13c/0x258 [ 52.877991][ T5504] do_el0_svc+0x5c/0x140 [ 52.878763][ T5504] el0_svc+0x78/0x1d0 [ 52.879543][ T5504] el0t_64_sync_handler+0xcc/0xe4 [ 52.880544][ T5504] el0t_64_sync+0x1a0/0x1a4 [ 53.027213][ T5527] loop0: detected capacity change from 0 to 32768 [ 53.029969][ T5527] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5527) [ 53.062389][ T5527] FAULT_INJECTION: forcing a failure. [ 53.062389][ T5527] name failslab, interval 1, probability 0, space 0, times 0 [ 53.066637][ T5527] CPU: 1 PID: 5527 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.068271][ T5527] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 53.070085][ T5527] Call trace: [ 53.070696][ T5527] dump_backtrace+0x0/0x458 [ 53.071541][ T5527] show_stack+0x2c/0x3c [ 53.072337][ T5527] __dump_stack+0x30/0x40 [ 53.073163][ T5527] dump_stack_lvl+0xf4/0x15c [ 53.074061][ T5527] dump_stack+0x1c/0x5c [ 53.074866][ T5527] should_fail+0x3c8/0x520 [ 53.075796][ T5527] __should_failslab+0xbc/0x10c [ 53.076857][ T5527] should_failslab+0x10/0x28 [ 53.077811][ T5527] slab_pre_alloc_hook+0x64/0xe8 [ 53.078817][ T5527] kmem_cache_alloc+0x94/0x3d8 [ 53.079781][ T5527] start_transaction+0x530/0x1438 [ 53.080826][ T5527] btrfs_attach_transaction_barrier+0x30/0xac [ 53.082096][ T5527] btrfs_sync_fs+0x13c/0xb2c [ 53.083020][ T5527] sync_filesystem+0x1a0/0x218 [ 53.083981][ T5527] btrfs_remount+0x190/0x12ac [ 53.085038][ T5527] legacy_reconfigure+0xfc/0x114 [ 53.086036][ T5527] reconfigure_super+0x1d0/0x6c4 [ 53.087073][ T5527] path_mount+0xd20/0xfe8 [ 53.088003][ T5527] __arm64_sys_mount+0x488/0x5f8 [ 53.089004][ T5527] invoke_syscall+0x98/0x28c [ 53.089946][ T5527] el0_svc_common+0x13c/0x258 [ 53.090890][ T5527] do_el0_svc+0x5c/0x140 [ 53.091720][ T5527] el0_svc+0x78/0x1d0 [ 53.092585][ T5527] el0t_64_sync_handler+0xcc/0xe4 [ 53.093609][ T5527] el0t_64_sync+0x1a0/0x1a4 [ 53.237166][ T5549] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5549) [ 53.260348][ T5549] FAULT_INJECTION: forcing a failure. [ 53.260348][ T5549] name failslab, interval 1, probability 0, space 0, times 0 [ 53.263033][ T5549] CPU: 1 PID: 5549 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.264873][ T5549] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 53.266984][ T5549] Call trace: [ 53.267679][ T5549] dump_backtrace+0x0/0x458 [ 53.268657][ T5549] show_stack+0x2c/0x3c [ 53.269673][ T5549] __dump_stack+0x30/0x40 [ 53.270674][ T5549] dump_stack_lvl+0xf4/0x15c [ 53.271783][ T5549] dump_stack+0x1c/0x5c [ 53.272701][ T5549] should_fail+0x3c8/0x520 [ 53.273651][ T5549] __should_failslab+0xbc/0x10c [ 53.274679][ T5549] should_failslab+0x10/0x28 [ 53.275641][ T5549] slab_pre_alloc_hook+0x64/0xe8 [ 53.276665][ T5549] kmem_cache_alloc+0x94/0x3d8 [ 53.277658][ T5549] getname_flags+0xb8/0x44c [ 53.278602][ T5549] getname+0x28/0x38 [ 53.279367][ T5549] do_sys_openat2+0xdc/0x3fc [ 53.280328][ T5549] __arm64_sys_openat+0x11c/0x150 [ 53.281328][ T5549] invoke_syscall+0x98/0x28c [ 53.282255][ T5549] el0_svc_common+0x13c/0x258 [ 53.283283][ T5549] do_el0_svc+0x5c/0x140 [ 53.284221][ T5549] el0_svc+0x78/0x1d0 [ 53.285068][ T5549] el0t_64_sync_handler+0xcc/0xe4 [ 53.286134][ T5549] el0t_64_sync+0x1a0/0x1a4 [ 53.438346][ T5571] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5571) [ 53.471061][ T5571] FAULT_INJECTION: forcing a failure. [ 53.471061][ T5571] name failslab, interval 1, probability 0, space 0, times 0 [ 53.473994][ T5571] CPU: 1 PID: 5571 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.475690][ T5571] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 53.478041][ T5571] Call trace: [ 53.478761][ T5571] dump_backtrace+0x0/0x458 [ 53.479734][ T5571] show_stack+0x2c/0x3c [ 53.480625][ T5571] __dump_stack+0x30/0x40 [ 53.481529][ T5571] dump_stack_lvl+0xf4/0x15c [ 53.482492][ T5571] dump_stack+0x1c/0x5c [ 53.483324][ T5571] should_fail+0x3c8/0x520 [ 53.484249][ T5571] __should_failslab+0xbc/0x10c [ 53.485290][ T5571] should_failslab+0x10/0x28 [ 53.486218][ T5571] slab_pre_alloc_hook+0x64/0xe8 [ 53.487259][ T5571] kmem_cache_alloc+0x94/0x3d8 [ 53.488259][ T5571] getname_flags+0xb8/0x44c [ 53.489185][ T5571] getname+0x28/0x38 [ 53.490002][ T5571] do_sys_openat2+0xdc/0x3fc [ 53.490959][ T5571] __arm64_sys_openat+0x11c/0x150 [ 53.492043][ T5571] invoke_syscall+0x98/0x28c [ 53.492912][ T5571] el0_svc_common+0x13c/0x258 [ 53.493852][ T5571] do_el0_svc+0x5c/0x140 [ 53.494702][ T5571] el0_svc+0x78/0x1d0 [ 53.495548][ T5571] el0t_64_sync_handler+0xcc/0xe4 [ 53.496532][ T5571] el0t_64_sync+0x1a0/0x1a4 [ 53.694981][ T5593] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5593) [ 53.725751][ T5593] FAULT_INJECTION: forcing a failure. [ 53.725751][ T5593] name failslab, interval 1, probability 0, space 0, times 0 [ 53.728424][ T5593] CPU: 0 PID: 5593 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.730233][ T5593] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 53.732298][ T5593] Call trace: [ 53.732962][ T5593] dump_backtrace+0x0/0x458 [ 53.733886][ T5593] show_stack+0x2c/0x3c [ 53.734755][ T5593] __dump_stack+0x30/0x40 [ 53.735660][ T5593] dump_stack_lvl+0xf4/0x15c [ 53.736605][ T5593] dump_stack+0x1c/0x5c [ 53.737473][ T5593] should_fail+0x3c8/0x520 [ 53.738377][ T5593] __should_failslab+0xbc/0x10c [ 53.739407][ T5593] should_failslab+0x10/0x28 [ 53.740373][ T5593] slab_pre_alloc_hook+0x64/0xe8 [ 53.741413][ T5593] kmem_cache_alloc+0x94/0x3d8 [ 53.742345][ T5593] start_transaction+0x530/0x1438 [ 53.743376][ T5593] btrfs_attach_transaction_barrier+0x30/0xac [ 53.744664][ T5593] btrfs_sync_fs+0x13c/0xb2c [ 53.745601][ T5593] sync_filesystem+0x1a0/0x218 [ 53.746630][ T5593] btrfs_remount+0x190/0x12ac [ 53.747513][ T5593] legacy_reconfigure+0xfc/0x114 [ 53.748480][ T5593] reconfigure_super+0x1d0/0x6c4 [ 53.749488][ T5593] path_mount+0xd20/0xfe8 [ 53.750306][ T5593] __arm64_sys_mount+0x488/0x5f8 [ 53.751326][ T5593] invoke_syscall+0x98/0x28c [ 53.752272][ T5593] el0_svc_common+0x13c/0x258 [ 53.753203][ T5593] do_el0_svc+0x5c/0x140 [ 53.754046][ T5593] el0_svc+0x78/0x1d0 [ 53.754832][ T5593] el0t_64_sync_handler+0xcc/0xe4 [ 53.755819][ T5593] el0t_64_sync+0x1a0/0x1a4 [ 53.955040][ T5615] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5615) [ 53.975574][ T5615] FAULT_INJECTION: forcing a failure. [ 53.975574][ T5615] name failslab, interval 1, probability 0, space 0, times 0 [ 53.978458][ T5615] CPU: 0 PID: 5615 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.980499][ T5615] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 53.982574][ T5615] Call trace: [ 53.983254][ T5615] dump_backtrace+0x0/0x458 [ 53.984202][ T5615] show_stack+0x2c/0x3c [ 53.985081][ T5615] __dump_stack+0x30/0x40 [ 53.986026][ T5615] dump_stack_lvl+0xf4/0x15c [ 53.986969][ T5615] dump_stack+0x1c/0x5c [ 53.987829][ T5615] should_fail+0x3c8/0x520 [ 53.988746][ T5615] __should_failslab+0xbc/0x10c [ 53.989761][ T5615] should_failslab+0x10/0x28 [ 53.990689][ T5615] slab_pre_alloc_hook+0x64/0xe8 [ 53.991723][ T5615] kmem_cache_alloc+0x94/0x3d8 [ 53.992701][ T5615] btrfs_alloc_path+0x5c/0x68 [ 53.993614][ T5615] __btrfs_run_delayed_items+0x88/0x478 [ 53.994873][ T5615] btrfs_run_delayed_items+0x24/0x34 [ 53.996058][ T5615] btrfs_commit_transaction+0x7f8/0x30ac [ 53.997304][ T5615] btrfs_sync_fs+0x240/0xb2c [ 53.998298][ T5615] sync_filesystem+0x1a0/0x218 [ 53.999288][ T5615] btrfs_remount+0x190/0x12ac [ 54.000172][ T5615] legacy_reconfigure+0xfc/0x114 [ 54.001202][ T5615] reconfigure_super+0x1d0/0x6c4 [ 54.002186][ T5615] path_mount+0xd20/0xfe8 [ 54.003056][ T5615] __arm64_sys_mount+0x488/0x5f8 [ 54.004037][ T5615] invoke_syscall+0x98/0x28c [ 54.004958][ T5615] el0_svc_common+0x13c/0x258 [ 54.005910][ T5615] do_el0_svc+0x5c/0x140 [ 54.006778][ T5615] el0_svc+0x78/0x1d0 [ 54.007585][ T5615] el0t_64_sync_handler+0xcc/0xe4 [ 54.008593][ T5615] el0t_64_sync+0x1a0/0x1a4 [ 54.010363][ T5615] BTRFS warning (device loop0): Skipping commit of aborted transaction. [ 54.012081][ T5615] ------------[ cut here ]------------ [ 54.013417][ T5615] WARNING: CPU: 0 PID: 5615 at fs/btrfs/transaction.c:2021 btrfs_commit_transaction+0x1e20/0x30ac [ 54.015556][ T5615] Modules linked in: [ 54.016392][ T5615] CPU: 0 PID: 5615 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 54.018282][ T5615] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 54.020221][ T5615] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 54.021818][ T5615] pc : btrfs_commit_transaction+0x1e20/0x30ac [ 54.023035][ T5615] lr : btrfs_commit_transaction+0x1e20/0x30ac [ 54.024265][ T5615] sp : ffff800023ff75e0 [ 54.025125][ T5615] x29: ffff800023ff7820 x28: ffff0000d2549630 x27: dfff800000000000 [ 54.026815][ T5615] x26: ffff7000047feed4 x25: ffff0000d95f1168 x24: ffff0000d53b19d0 [ 54.028450][ T5615] x23: 00000000fffffff4 x22: ffff0000d3504000 x21: ffff0000d53b0000 [ 54.030161][ T5615] x20: 0000000000000000 x19: 1fffe0001b2be22d x18: 0000000000000000 [ 54.031883][ T5615] x17: 0000000000000000 x16: ffff8000113710a0 x15: 0000000000000000 [ 54.033731][ T5615] x14: 0000000000000001 x13: 1fffe000341ca7ab x12: 0000000000000000 [ 54.035573][ T5615] x11: ff80800008300a7c x10: 0000000000000000 x9 : fbec90a73b212400 [ 54.037295][ T5615] x8 : fbec90a73b212400 x7 : 0000000000000001 x6 : 0000000000000001 [ 54.038980][ T5615] x5 : ffff800023ff6ef8 x4 : ffff80001448f520 x3 : ffff800008510b80 [ 54.040844][ T5615] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 54.042613][ T5615] Call trace: [ 54.043294][ T5615] btrfs_commit_transaction+0x1e20/0x30ac [ 54.044534][ T5615] btrfs_sync_fs+0x240/0xb2c [ 54.045516][ T5615] sync_filesystem+0x1a0/0x218 [ 54.046529][ T5615] btrfs_remount+0x190/0x12ac [ 54.047482][ T5615] legacy_reconfigure+0xfc/0x114 [ 54.048502][ T5615] reconfigure_super+0x1d0/0x6c4 [ 54.049522][ T5615] path_mount+0xd20/0xfe8 [ 54.050393][ T5615] __arm64_sys_mount+0x488/0x5f8 [ 54.051391][ T5615] invoke_syscall+0x98/0x28c [ 54.052337][ T5615] el0_svc_common+0x13c/0x258 [ 54.053287][ T5615] do_el0_svc+0x5c/0x140 [ 54.054181][ T5615] el0_svc+0x78/0x1d0 [ 54.054990][ T5615] el0t_64_sync_handler+0xcc/0xe4 [ 54.056028][ T5615] el0t_64_sync+0x1a0/0x1a4 [ 54.056939][ T5615] irq event stamp: 80696 [ 54.057795][ T5615] hardirqs last enabled at (80695): [] __up_console_sem+0xb4/0xfc [ 54.059745][ T5615] hardirqs last disabled at (80696): [] el1_dbg+0x24/0x80 [ 54.061536][ T5615] softirqs last enabled at (80658): [] handle_softirqs+0xa70/0xc14 [ 54.063526][ T5615] softirqs last disabled at (80591): [] __irq_exit_rcu+0x240/0x434 [ 54.065481][ T5615] ---[ end trace 9e0292fa3ae1506b ]--- [ 54.067423][ T5615] BTRFS: error (device loop0) in cleanup_transaction:2021: errno=-12 Out of memory [ 54.069165][ T5615] BTRFS error (device loop0): Remounting read-write after error is not allowed 1970/01/01 00:00:54 executed programs: 52 [ 54.260404][ T5637] BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5637) [ 54.291469][ T5637] FAULT_INJECTION: forcing a failure. [ 54.291469][ T5637] name failslab, interval 1, probability 0, space 0, times 0 [ 54.294518][ T5637] CPU: 1 PID: 5637 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 54.296289][ T5637] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 [ 54.298479][ T5637] Call trace: [ 54.299148][ T5637] dump_backtrace+0x0/0x458 [ 54.300076][ T5637] show_stack+0x2c/0x3c [ 54.300889][ T5637] __dump_stack+0x30/0x40 [ 54.301737][ T5637] dump_stack_lvl+0xf4/0x15c [ 54.302656][ T5637] dump_stack+0x1c/0x5c [ 54.303555][ T5637] should_fail+0x3c8/0x520 [ 54.304559][ T5637] __should_failslab+0xbc/0x10c [ 54.305620][ T5637] should_failslab+0x10/0x28 [ 54.306588][ T5637] slab_pre_alloc_hook+0x64/0xe8 [ 54.307513][ T5637] kmem_cache_alloc+0x94/0x3d8 [ 54.308533][ T5637] btrfs_alloc_path+0x5c/0x68 [ 54.309504][ T5637] __btrfs_run_delayed_items+0x88/0x478 [ 54.310812][ T5637] btrfs_run_delayed_items+0x24/0x34 [ 54.312019][ T5637] btrfs_commit_transaction+0x7f8/0x30ac [ 54.313273][ T5637] btrfs_sync_fs+0x240/0xb2c [ 54.314241][ T5637] sync_filesystem+0x1a0/0x218 [ 54.315239][ T5637] btrfs_remount+0x190/0x12ac [ 54.316157][ T5637] legacy_reconfigure+0xfc/0x114 [ 54.317185][ T5637] reconfigure_super+0x1d0/0x6c4 [ 54.318221][ T5637] path_mount+0xd20/0xfe8 [ 54.319129][ T5637] __arm64_sys_mount+0x488/0x5f8 [ 54.320158][ T5637] invoke_syscall+0x98/0x28c