Warning: Permanently added '10.128.0.42' (ED25519) to the list of known hosts. 1970/01/01 00:00:47 ignoring optional flag "type"="gce" 1970/01/01 00:00:47 parsed 1 programs 1970/01/01 00:00:47 executed programs: 0 [ 47.325231][ T4264] chnl_net:caif_netlink_parms(): no params data found [ 47.343242][ T4264] bridge0: port 1(bridge_slave_0) entered blocking state [ 47.344452][ T4264] bridge0: port 1(bridge_slave_0) entered disabled state [ 47.345961][ T4264] device bridge_slave_0 entered promiscuous mode [ 47.347855][ T4264] bridge0: port 2(bridge_slave_1) entered blocking state [ 47.348953][ T4264] bridge0: port 2(bridge_slave_1) entered disabled state [ 47.350476][ T4264] device bridge_slave_1 entered promiscuous mode [ 47.357590][ T4264] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 47.359983][ T4264] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 47.367960][ T4264] team0: Port device team_slave_0 added [ 47.369580][ T4264] team0: Port device team_slave_1 added [ 47.375778][ T4264] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 47.376754][ T4264] 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. [ 47.380977][ T4264] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 47.383231][ T4264] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 47.384322][ T4264] 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. [ 47.388197][ T4264] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 47.450833][ T4264] device hsr_slave_0 entered promiscuous mode [ 47.509887][ T4264] device hsr_slave_1 entered promiscuous mode [ 48.088519][ T4264] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 48.140810][ T4264] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 48.180615][ T4264] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 48.241146][ T4264] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 48.286467][ T4264] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.287640][ T4264] bridge0: port 2(bridge_slave_1) entered forwarding state [ 48.289100][ T4264] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.290378][ T4264] bridge0: port 1(bridge_slave_0) entered forwarding state [ 48.310609][ T4264] 8021q: adding VLAN 0 to HW filter on device bond0 [ 48.314596][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 48.316280][ T148] bridge0: port 1(bridge_slave_0) entered disabled state [ 48.317876][ T148] bridge0: port 2(bridge_slave_1) entered disabled state [ 48.321516][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 48.325925][ T4264] 8021q: adding VLAN 0 to HW filter on device team0 [ 48.328489][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 48.331976][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 48.333388][ T148] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.334446][ T148] bridge0: port 1(bridge_slave_0) entered forwarding state [ 48.340733][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 48.342264][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 48.343598][ T148] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.344669][ T148] bridge0: port 2(bridge_slave_1) entered forwarding state [ 48.346019][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 48.347624][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 48.354686][ T4264] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 48.356179][ T4264] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 48.361512][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 48.363625][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 48.365185][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 48.366959][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 48.368467][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 48.371301][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 48.373294][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 48.374709][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 48.376436][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 48.377942][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 48.415090][ T4264] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 48.421342][ T617] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 48.422607][ T617] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 48.425355][ T617] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 48.426807][ T617] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 48.433998][ T617] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 48.435613][ T617] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 48.437493][ T617] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 48.438913][ T617] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 48.442284][ T4264] device veth0_vlan entered promiscuous mode [ 48.445667][ T4264] device veth1_vlan entered promiscuous mode [ 48.454275][ T617] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 48.455854][ T617] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 48.457218][ T617] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 48.458612][ T617] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 48.462235][ T4264] device veth0_macvtap entered promiscuous mode [ 48.464932][ T4264] device veth1_macvtap entered promiscuous mode [ 48.471222][ T4264] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 48.472297][ T617] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 48.474182][ T617] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 48.475516][ T617] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 48.477012][ T617] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 48.480109][ T4264] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 48.482560][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 48.484146][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 48.486604][ T4264] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 48.488017][ T4264] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 48.489402][ T4264] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 48.491589][ T4264] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 48.629370][ T4393] loop0: detected capacity change from 0 to 32768 [ 48.643344][ T4393] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4393) [ 48.658544][ T4393] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 48.660430][ T4393] BTRFS info (device loop0): enabling auto defrag [ 48.661395][ T4393] BTRFS info (device loop0): enabling disk space caching [ 48.662597][ T4393] BTRFS info (device loop0): disabling tree log [ 48.663498][ T4393] BTRFS info (device loop0): force clearing of disk cache [ 48.671260][ T4393] BTRFS info (device loop0): force zlib compression, level 3 [ 48.672470][ T4393] BTRFS info (device loop0): disabling disk space caching [ 48.673642][ T4393] BTRFS info (device loop0): has skinny extents [ 48.728017][ T4393] BTRFS info (device loop0): enabling ssd optimizations [ 48.731337][ T4393] BTRFS info (device loop0): clearing free space tree [ 48.732682][ T4393] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 48.735748][ T4393] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 48.757368][ T4393] FAULT_INJECTION: forcing a failure. [ 48.757368][ T4393] name failslab, interval 1, probability 0, space 0, times 1 [ 48.759919][ T4393] CPU: 1 PID: 4393 Comm: syz-executor.0 Not tainted syzkaller #0 [ 48.761136][ T4393] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 48.762798][ T4393] Call trace: [ 48.763312][ T4393] dump_backtrace+0x0/0x458 [ 48.764026][ T4393] show_stack+0x2c/0x3c [ 48.764631][ T4393] __dump_stack+0x30/0x40 [ 48.765283][ T4393] dump_stack_lvl+0xf4/0x15c [ 48.765932][ T4393] dump_stack+0x1c/0x5c [ 48.766525][ T4393] should_fail+0x3bc/0x514 [ 48.767183][ T4393] __should_failslab+0xbc/0x10c [ 48.767905][ T4393] should_failslab+0x10/0x28 [ 48.768591][ T4393] slab_pre_alloc_hook+0x64/0xe8 [ 48.769420][ T4393] kmem_cache_alloc+0x94/0x3d4 [ 48.770219][ T4393] start_transaction+0x4d0/0x13ec [ 48.770940][ T4393] btrfs_attach_transaction_barrier+0x30/0xac [ 48.771842][ T4393] btrfs_sync_fs+0x13c/0xb24 [ 48.772543][ T4393] sync_filesystem+0x1a0/0x218 [ 48.773281][ T4393] btrfs_remount+0x198/0x12b0 [ 48.774031][ T4393] legacy_reconfigure+0xf8/0x110 [ 48.774855][ T4393] reconfigure_super+0x1d4/0x6f4 [ 48.775649][ T4393] path_mount+0xc88/0x1008 [ 48.776332][ T4393] __arm64_sys_mount+0x514/0x5f0 [ 48.777178][ T4393] invoke_syscall+0x98/0x2b0 [ 48.777921][ T4393] el0_svc_common+0x138/0x258 [ 48.778672][ T4393] do_el0_svc+0x58/0x13c [ 48.779351][ T4393] el0_svc+0x78/0x1d0 [ 48.779990][ T4393] el0t_64_sync_handler+0xcc/0xe4 [ 48.780752][ T4393] el0t_64_sync+0x1a0/0x1a4 [ 48.968606][ T4464] loop0: detected capacity change from 0 to 32768 [ 48.976819][ T4464] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4464) [ 48.986915][ T4464] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 48.988661][ T4464] BTRFS info (device loop0): enabling auto defrag [ 48.996570][ T4464] BTRFS info (device loop0): enabling disk space caching [ 48.997816][ T4464] BTRFS info (device loop0): disabling tree log [ 48.998811][ T4464] BTRFS info (device loop0): force clearing of disk cache [ 49.000460][ T4464] BTRFS info (device loop0): force zlib compression, level 3 [ 49.001666][ T4464] BTRFS info (device loop0): disabling disk space caching [ 49.008791][ T4464] BTRFS info (device loop0): has skinny extents [ 49.056580][ T4464] BTRFS info (device loop0): enabling ssd optimizations [ 49.058244][ T4464] BTRFS info (device loop0): clearing free space tree [ 49.059380][ T4464] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 49.061962][ T4464] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 49.068108][ T4464] FAULT_INJECTION: forcing a failure. [ 49.068108][ T4464] name failslab, interval 1, probability 0, space 0, times 0 [ 49.071026][ T4464] CPU: 1 PID: 4464 Comm: syz-executor.0 Not tainted syzkaller #0 [ 49.072117][ T4464] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 49.073665][ T4464] Call trace: [ 49.074122][ T4464] dump_backtrace+0x0/0x458 [ 49.074740][ T4464] show_stack+0x2c/0x3c [ 49.075320][ T4464] __dump_stack+0x30/0x40 [ 49.075987][ T4464] dump_stack_lvl+0xf4/0x15c [ 49.076679][ T4464] dump_stack+0x1c/0x5c [ 49.077316][ T4464] should_fail+0x3bc/0x514 [ 49.077976][ T4464] __should_failslab+0xbc/0x10c [ 49.078702][ T4464] should_failslab+0x10/0x28 [ 49.079477][ T4464] slab_pre_alloc_hook+0x64/0xe8 [ 49.080308][ T4464] kmem_cache_alloc+0x94/0x3d4 [ 49.081102][ T4464] start_transaction+0x4d0/0x13ec [ 49.081878][ T4464] btrfs_attach_transaction_barrier+0x30/0xac [ 49.082896][ T4464] btrfs_sync_fs+0x13c/0xb24 [ 49.083692][ T4464] sync_filesystem+0x1a0/0x218 [ 49.084484][ T4464] btrfs_remount+0x198/0x12b0 [ 49.085169][ T4464] legacy_reconfigure+0xf8/0x110 [ 49.085928][ T4464] reconfigure_super+0x1d4/0x6f4 [ 49.086663][ T4464] path_mount+0xc88/0x1008 [ 49.087358][ T4464] __arm64_sys_mount+0x514/0x5f0 [ 49.088115][ T4464] invoke_syscall+0x98/0x2b0 [ 49.088846][ T4464] el0_svc_common+0x138/0x258 [ 49.089596][ T4464] do_el0_svc+0x58/0x13c [ 49.090324][ T4464] el0_svc+0x78/0x1d0 [ 49.090995][ T4464] el0t_64_sync_handler+0xcc/0xe4 [ 49.091805][ T4464] el0t_64_sync+0x1a0/0x1a4 [ 49.293458][ T4528] loop0: detected capacity change from 0 to 32768 [ 49.300180][ T4524] Bluetooth: hci0: command 0x0409 tx timeout [ 49.302810][ T4528] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4528) [ 49.310333][ T4528] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 49.311699][ T4528] BTRFS info (device loop0): enabling auto defrag [ 49.312677][ T4528] BTRFS info (device loop0): enabling disk space caching [ 49.313706][ T4528] BTRFS info (device loop0): disabling tree log [ 49.314695][ T4528] BTRFS info (device loop0): force clearing of disk cache [ 49.315869][ T4528] BTRFS info (device loop0): force zlib compression, level 3 [ 49.316992][ T4528] BTRFS info (device loop0): disabling disk space caching [ 49.318062][ T4528] BTRFS info (device loop0): has skinny extents [ 49.372295][ T4528] BTRFS info (device loop0): enabling ssd optimizations [ 49.373930][ T4528] BTRFS info (device loop0): clearing free space tree [ 49.375024][ T4528] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 49.376559][ T4528] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 49.391311][ T4528] FAULT_INJECTION: forcing a failure. [ 49.391311][ T4528] name failslab, interval 1, probability 0, space 0, times 0 [ 49.393298][ T4528] CPU: 1 PID: 4528 Comm: syz-executor.0 Not tainted syzkaller #0 [ 49.394438][ T4528] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 49.396036][ T4528] Call trace: [ 49.396573][ T4528] dump_backtrace+0x0/0x458 [ 49.397232][ T4528] show_stack+0x2c/0x3c [ 49.397881][ T4528] __dump_stack+0x30/0x40 [ 49.398523][ T4528] dump_stack_lvl+0xf4/0x15c [ 49.399255][ T4528] dump_stack+0x1c/0x5c [ 49.399943][ T4528] should_fail+0x3bc/0x514 [ 49.400696][ T4528] __should_failslab+0xbc/0x10c [ 49.401499][ T4528] should_failslab+0x10/0x28 [ 49.402244][ T4528] slab_pre_alloc_hook+0x64/0xe8 [ 49.403061][ T4528] kmem_cache_alloc+0x94/0x3d4 [ 49.403818][ T4528] start_transaction+0x4d0/0x13ec [ 49.404673][ T4528] btrfs_attach_transaction_barrier+0x30/0xac [ 49.405571][ T4528] btrfs_sync_fs+0x13c/0xb24 [ 49.406281][ T4528] sync_filesystem+0x1a0/0x218 [ 49.406992][ T4528] btrfs_remount+0x198/0x12b0 [ 49.407747][ T4528] legacy_reconfigure+0xf8/0x110 [ 49.408502][ T4528] reconfigure_super+0x1d4/0x6f4 [ 49.409219][ T4528] path_mount+0xc88/0x1008 [ 49.409900][ T4528] __arm64_sys_mount+0x514/0x5f0 [ 49.410620][ T4528] invoke_syscall+0x98/0x2b0 [ 49.411309][ T4528] el0_svc_common+0x138/0x258 [ 49.412036][ T4528] do_el0_svc+0x58/0x13c [ 49.412763][ T4528] el0_svc+0x78/0x1d0 [ 49.413448][ T4528] el0t_64_sync_handler+0xcc/0xe4 [ 49.414262][ T4528] el0t_64_sync+0x1a0/0x1a4 [ 49.586991][ T4579] loop0: detected capacity change from 0 to 32768 [ 49.590003][ T4579] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4579) [ 49.593747][ T4579] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 49.595269][ T4579] BTRFS info (device loop0): enabling auto defrag [ 49.596395][ T4579] BTRFS info (device loop0): enabling disk space caching [ 49.597580][ T4579] BTRFS info (device loop0): disabling tree log [ 49.598594][ T4579] BTRFS info (device loop0): force clearing of disk cache [ 49.600577][ T4579] BTRFS info (device loop0): force zlib compression, level 3 [ 49.601911][ T4579] BTRFS info (device loop0): disabling disk space caching [ 49.603152][ T4579] BTRFS info (device loop0): has skinny extents [ 49.636566][ T4579] BTRFS info (device loop0): enabling ssd optimizations [ 49.638288][ T4579] BTRFS info (device loop0): clearing free space tree [ 49.639360][ T4579] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 49.650154][ T4579] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 49.656942][ T4579] FAULT_INJECTION: forcing a failure. [ 49.656942][ T4579] name failslab, interval 1, probability 0, space 0, times 0 [ 49.658902][ T4579] CPU: 1 PID: 4579 Comm: syz-executor.0 Not tainted syzkaller #0 [ 49.660141][ T4579] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 49.661721][ T4579] Call trace: [ 49.662248][ T4579] dump_backtrace+0x0/0x458 [ 49.662963][ T4579] show_stack+0x2c/0x3c [ 49.663689][ T4579] __dump_stack+0x30/0x40 [ 49.664410][ T4579] dump_stack_lvl+0xf4/0x15c [ 49.665210][ T4579] dump_stack+0x1c/0x5c [ 49.665900][ T4579] should_fail+0x3bc/0x514 [ 49.666605][ T4579] __should_failslab+0xbc/0x10c [ 49.667459][ T4579] should_failslab+0x10/0x28 [ 49.668227][ T4579] slab_pre_alloc_hook+0x64/0xe8 [ 49.669045][ T4579] kmem_cache_alloc+0x94/0x3d4 [ 49.669837][ T4579] start_transaction+0x4d0/0x13ec [ 49.670662][ T4579] btrfs_attach_transaction_barrier+0x30/0xac [ 49.671599][ T4579] btrfs_sync_fs+0x13c/0xb24 [ 49.672315][ T4579] sync_filesystem+0x1a0/0x218 [ 49.673055][ T4579] btrfs_remount+0x198/0x12b0 [ 49.673780][ T4579] legacy_reconfigure+0xf8/0x110 [ 49.674524][ T4579] reconfigure_super+0x1d4/0x6f4 [ 49.675353][ T4579] path_mount+0xc88/0x1008 [ 49.676056][ T4579] __arm64_sys_mount+0x514/0x5f0 [ 49.676825][ T4579] invoke_syscall+0x98/0x2b0 [ 49.677596][ T4579] el0_svc_common+0x138/0x258 [ 49.678377][ T4579] do_el0_svc+0x58/0x13c [ 49.679063][ T4579] el0_svc+0x78/0x1d0 [ 49.679662][ T4579] el0t_64_sync_handler+0xcc/0xe4 [ 49.680448][ T4579] el0t_64_sync+0x1a0/0x1a4 [ 49.898644][ T4630] loop0: detected capacity change from 0 to 32768 [ 49.903406][ T4630] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4630) [ 49.908867][ T4630] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 49.910737][ T4630] BTRFS info (device loop0): enabling auto defrag [ 49.911884][ T4630] BTRFS info (device loop0): enabling disk space caching [ 49.913100][ T4630] BTRFS info (device loop0): disabling tree log [ 49.914251][ T4630] BTRFS info (device loop0): force clearing of disk cache [ 49.915466][ T4630] BTRFS info (device loop0): force zlib compression, level 3 [ 49.916740][ T4630] BTRFS info (device loop0): disabling disk space caching [ 49.917977][ T4630] BTRFS info (device loop0): has skinny extents [ 49.940473][ T4630] BTRFS info (device loop0): enabling ssd optimizations [ 49.942262][ T4630] BTRFS info (device loop0): clearing free space tree [ 49.943467][ T4630] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 49.945123][ T4630] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 49.954091][ T4630] FAULT_INJECTION: forcing a failure. [ 49.954091][ T4630] name failslab, interval 1, probability 0, space 0, times 0 [ 49.956152][ T4630] CPU: 1 PID: 4630 Comm: syz-executor.0 Not tainted syzkaller #0 [ 49.957356][ T4630] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 49.958954][ T4630] Call trace: [ 49.959470][ T4630] dump_backtrace+0x0/0x458 [ 49.960249][ T4630] show_stack+0x2c/0x3c [ 49.960954][ T4630] __dump_stack+0x30/0x40 [ 49.961726][ T4630] dump_stack_lvl+0xf4/0x15c [ 49.962522][ T4630] dump_stack+0x1c/0x5c [ 49.963204][ T4630] should_fail+0x3bc/0x514 [ 49.963907][ T4630] __should_failslab+0xbc/0x10c [ 49.964687][ T4630] should_failslab+0x10/0x28 [ 49.965428][ T4630] slab_pre_alloc_hook+0x64/0xe8 [ 49.966281][ T4630] kmem_cache_alloc_trace+0x98/0x3ec [ 49.967156][ T4630] bdi_split_work_to_wbs+0x3f4/0x77c [ 49.968006][ T4630] sync_inodes_sb+0x188/0x844 [ 49.968727][ T4630] sync_filesystem+0x160/0x218 [ 49.969453][ T4630] btrfs_remount+0x198/0x12b0 [ 49.970149][ T4630] legacy_reconfigure+0xf8/0x110 [ 49.970945][ T4630] reconfigure_super+0x1d4/0x6f4 [ 49.971801][ T4630] path_mount+0xc88/0x1008 [ 49.972495][ T4630] __arm64_sys_mount+0x514/0x5f0 [ 49.973210][ T4630] invoke_syscall+0x98/0x2b0 [ 49.973899][ T4630] el0_svc_common+0x138/0x258 [ 49.974595][ T4630] do_el0_svc+0x58/0x13c [ 49.975237][ T4630] el0_svc+0x78/0x1d0 [ 49.975899][ T4630] el0t_64_sync_handler+0xcc/0xe4 [ 49.976612][ T4630] el0t_64_sync+0x1a0/0x1a4 [ 50.169338][ T4679] loop0: detected capacity change from 0 to 32768 [ 50.173336][ T4679] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4679) [ 50.178109][ T4679] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 50.180036][ T4679] BTRFS info (device loop0): enabling auto defrag [ 50.181376][ T4679] BTRFS info (device loop0): enabling disk space caching [ 50.182609][ T4679] BTRFS info (device loop0): disabling tree log [ 50.183503][ T4679] BTRFS info (device loop0): force clearing of disk cache [ 50.184793][ T4679] BTRFS info (device loop0): force zlib compression, level 3 [ 50.186196][ T4679] BTRFS info (device loop0): disabling disk space caching [ 50.187366][ T4679] BTRFS info (device loop0): has skinny extents [ 50.197107][ T4679] BTRFS info (device loop0): enabling ssd optimizations [ 50.199305][ T4679] BTRFS info (device loop0): clearing free space tree [ 50.200915][ T4679] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 50.202476][ T4679] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 50.208844][ T4679] FAULT_INJECTION: forcing a failure. [ 50.208844][ T4679] name failslab, interval 1, probability 0, space 0, times 0 [ 50.211777][ T4679] CPU: 1 PID: 4679 Comm: syz-executor.0 Not tainted syzkaller #0 [ 50.213001][ T4679] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 50.214476][ T4679] Call trace: [ 50.215017][ T4679] dump_backtrace+0x0/0x458 [ 50.215694][ T4679] show_stack+0x2c/0x3c [ 50.216282][ T4679] __dump_stack+0x30/0x40 [ 50.216929][ T4679] dump_stack_lvl+0xf4/0x15c [ 50.217681][ T4679] dump_stack+0x1c/0x5c [ 50.218341][ T4679] should_fail+0x3bc/0x514 [ 50.219055][ T4679] __should_failslab+0xbc/0x10c [ 50.219801][ T4679] should_failslab+0x10/0x28 [ 50.220523][ T4679] slab_pre_alloc_hook+0x64/0xe8 [ 50.221324][ T4679] kmem_cache_alloc+0x94/0x3d4 [ 50.222098][ T4679] btrfs_alloc_path+0x5c/0x68 [ 50.222804][ T4679] __btrfs_free_extent+0x1a8/0x1abc [ 50.223560][ T4679] __btrfs_run_delayed_refs+0xbf0/0x348c [ 50.224437][ T4679] btrfs_run_delayed_refs+0x124/0x458 [ 50.225257][ T4679] btrfs_commit_transaction+0x1e0/0x3078 [ 50.226121][ T4679] btrfs_sync_fs+0x628/0xb24 [ 50.226804][ T4679] sync_filesystem+0x1a0/0x218 [ 50.227561][ T4679] btrfs_remount+0x198/0x12b0 [ 50.228422][ T4679] legacy_reconfigure+0xf8/0x110 [ 50.229301][ T4679] reconfigure_super+0x1d4/0x6f4 [ 50.230114][ T4679] path_mount+0xc88/0x1008 [ 50.230817][ T4679] __arm64_sys_mount+0x514/0x5f0 [ 50.231622][ T4679] invoke_syscall+0x98/0x2b0 [ 50.232399][ T4679] el0_svc_common+0x138/0x258 [ 50.233176][ T4679] do_el0_svc+0x58/0x13c [ 50.233842][ T4679] el0_svc+0x78/0x1d0 [ 50.234433][ T4679] el0t_64_sync_handler+0xcc/0xe4 [ 50.235202][ T4679] el0t_64_sync+0x1a0/0x1a4 [ 50.237612][ T4679] BTRFS error (device loop0): failed to run delayed ref for logical 5255168 num_bytes 4096 type 176 action 2 ref_mod 1: -12 [ 50.240382][ T4679] ------------[ cut here ]------------ [ 50.241334][ T4679] WARNING: CPU: 0 PID: 4679 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 50.242811][ T4679] Modules linked in: [ 50.243410][ T4679] CPU: 0 PID: 4679 Comm: syz-executor.0 Not tainted syzkaller #0 [ 50.244610][ T4679] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 50.246071][ T4679] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 50.247326][ T4679] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 50.248179][ T4679] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 50.248998][ T4679] sp : ffff80001cf87530 [ 50.249612][ T4679] x29: ffff80001cf87540 x28: ffff0000c16d4000 x27: dfff800000000000 [ 50.250758][ T4679] x26: ffff0000c16d4024 x25: ffff0000ddf20000 x24: 1fffe0001b97ad6b [ 50.252027][ T4679] x23: 1fffe0001b97ad6b x22: ffff0000dcbd6b58 x21: 00000000fffffff4 [ 50.253249][ T4679] x20: 0000000000000051 x19: ffff0000dcbd6b00 x18: 0000000000000001 [ 50.254481][ T4679] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 50.255735][ T4679] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 50.257011][ T4679] x11: 0000000000000000 x10: 0000000000000000 x9 : b453d6541b63fb00 [ 50.258183][ T4679] x8 : b453d6541b63fb00 x7 : 0000000000000001 x6 : 0000000000000001 [ 50.259465][ T4679] x5 : ffff80001cf86e38 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 50.260802][ T4679] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 50.262036][ T4679] Call trace: [ 50.262504][ T4679] btrfs_run_delayed_refs+0x3e4/0x458 [ 50.263362][ T4679] btrfs_commit_transaction+0x1e0/0x3078 [ 50.264189][ T4679] btrfs_sync_fs+0x628/0xb24 [ 50.264886][ T4679] sync_filesystem+0x1a0/0x218 [ 50.265576][ T4679] btrfs_remount+0x198/0x12b0 [ 50.266246][ T4679] legacy_reconfigure+0xf8/0x110 [ 50.266983][ T4679] reconfigure_super+0x1d4/0x6f4 [ 50.267766][ T4679] path_mount+0xc88/0x1008 [ 50.268514][ T4679] __arm64_sys_mount+0x514/0x5f0 [ 50.269274][ T4679] invoke_syscall+0x98/0x2b0 [ 50.270000][ T4679] el0_svc_common+0x138/0x258 [ 50.270723][ T4679] do_el0_svc+0x58/0x13c [ 50.271355][ T4679] el0_svc+0x78/0x1d0 [ 50.271965][ T4679] el0t_64_sync_handler+0xcc/0xe4 [ 50.272667][ T4679] el0t_64_sync+0x1a0/0x1a4 [ 50.273345][ T4679] irq event stamp: 80788 [ 50.273926][ T4679] hardirqs last enabled at (80787): [] __up_console_sem+0xb4/0xfc [ 50.275308][ T4679] hardirqs last disabled at (80788): [] el1_dbg+0x24/0x80 [ 50.276596][ T4679] softirqs last enabled at (80764): [] handle_softirqs+0xa40/0xbe4 [ 50.278006][ T4679] softirqs last disabled at (80687): [] __irq_exit_rcu+0x240/0x43c [ 50.279385][ T4679] ---[ end trace 4d46d6dd039cd43e ]--- [ 50.280400][ T4679] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 50.281953][ T4679] BTRFS info (device loop0): forced readonly [ 50.282880][ T4679] BTRFS error (device loop0): Remounting read-write after error is not allowed [ 50.454187][ T4711] loop0: detected capacity change from 0 to 32768 [ 50.456658][ T4711] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4711) [ 50.459529][ T4711] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 50.461249][ T4711] BTRFS info (device loop0): enabling auto defrag [ 50.462247][ T4711] BTRFS info (device loop0): enabling disk space caching [ 50.463336][ T4711] BTRFS info (device loop0): disabling tree log [ 50.464339][ T4711] BTRFS info (device loop0): force clearing of disk cache [ 50.465539][ T4711] BTRFS info (device loop0): force zlib compression, level 3 [ 50.466821][ T4711] BTRFS info (device loop0): disabling disk space caching [ 50.468041][ T4711] BTRFS info (device loop0): has skinny extents [ 50.475384][ T4711] BTRFS info (device loop0): enabling ssd optimizations [ 50.476903][ T4711] BTRFS info (device loop0): clearing free space tree [ 50.477994][ T4711] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 50.479448][ T4711] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 50.486614][ T4711] FAULT_INJECTION: forcing a failure. [ 50.486614][ T4711] name failslab, interval 1, probability 0, space 0, times 0 [ 50.488581][ T4711] CPU: 1 PID: 4711 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 50.490092][ T4711] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 50.491805][ T4711] Call trace: [ 50.492308][ T4711] dump_backtrace+0x0/0x458 [ 50.493045][ T4711] show_stack+0x2c/0x3c [ 50.493763][ T4711] __dump_stack+0x30/0x40 [ 50.494496][ T4711] dump_stack_lvl+0xf4/0x15c [ 50.495304][ T4711] dump_stack+0x1c/0x5c [ 50.495985][ T4711] should_fail+0x3bc/0x514 [ 50.496730][ T4711] __should_failslab+0xbc/0x10c [ 50.497511][ T4711] should_failslab+0x10/0x28 [ 50.498267][ T4711] slab_pre_alloc_hook+0x64/0xe8 [ 50.499056][ T4711] kmem_cache_alloc+0x94/0x3d4 [ 50.499866][ T4711] btrfs_alloc_path+0x5c/0x68 [ 50.500670][ T4711] __btrfs_free_extent+0x1a8/0x1abc [ 50.501609][ T4711] __btrfs_run_delayed_refs+0xbf0/0x348c [ 50.502530][ T4711] btrfs_run_delayed_refs+0x124/0x458 [ 50.503372][ T4711] btrfs_commit_transaction+0x1e0/0x3078 [ 50.504244][ T4711] btrfs_sync_fs+0x628/0xb24 [ 50.504943][ T4711] sync_filesystem+0x1a0/0x218 [ 50.505668][ T4711] btrfs_remount+0x198/0x12b0 [ 50.506400][ T4711] legacy_reconfigure+0xf8/0x110 [ 50.507094][ T4711] reconfigure_super+0x1d4/0x6f4 [ 50.507826][ T4711] path_mount+0xc88/0x1008 [ 50.508496][ T4711] __arm64_sys_mount+0x514/0x5f0 [ 50.509194][ T4711] invoke_syscall+0x98/0x2b0 [ 50.509907][ T4711] el0_svc_common+0x138/0x258 [ 50.510658][ T4711] do_el0_svc+0x58/0x13c [ 50.511304][ T4711] el0_svc+0x78/0x1d0 [ 50.511938][ T4711] el0t_64_sync_handler+0xcc/0xe4 [ 50.512770][ T4711] el0t_64_sync+0x1a0/0x1a4 [ 50.514423][ T4711] BTRFS error (device loop0): failed to run delayed ref for logical 5255168 num_bytes 4096 type 176 action 2 ref_mod 1: -12 [ 50.516289][ T4711] ------------[ cut here ]------------ [ 50.517305][ T4711] WARNING: CPU: 1 PID: 4711 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 50.518939][ T4711] Modules linked in: [ 50.519570][ T4711] CPU: 1 PID: 4711 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 50.521085][ T4711] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 50.522695][ T4711] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 50.524044][ T4711] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 50.524990][ T4711] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 50.525871][ T4711] sp : ffff80001f637530 [ 50.526520][ T4711] x29: ffff80001f637540 x28: ffff0000c845c000 x27: dfff800000000000 [ 50.527874][ T4711] x26: ffff0000c845c024 x25: ffff0000ce304000 x24: 1fffe0001b97adad [ 50.529216][ T4711] x23: 1fffe0001b97adad x22: ffff0000dcbd6d68 x21: 00000000fffffff4 [ 50.530479][ T4711] x20: 0000000000000051 x19: ffff0000dcbd6d10 x18: 0000000000000001 [ 50.531714][ T4711] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 50.533037][ T4711] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 50.534282][ T4711] x11: 0000000000000000 x10: 0000000000000000 x9 : 305c65fdafc90500 [ 50.535541][ T4711] x8 : 305c65fdafc90500 x7 : 0000000000000001 x6 : 0000000000000001 [ 50.536778][ T4711] x5 : ffff80001f636e38 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 50.538058][ T4711] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 50.539335][ T4711] Call trace: [ 50.539880][ T4711] btrfs_run_delayed_refs+0x3e4/0x458 [ 50.540728][ T4711] btrfs_commit_transaction+0x1e0/0x3078 [ 50.541537][ T4711] btrfs_sync_fs+0x628/0xb24 [ 50.542264][ T4711] sync_filesystem+0x1a0/0x218 [ 50.542988][ T4711] btrfs_remount+0x198/0x12b0 [ 50.543729][ T4711] legacy_reconfigure+0xf8/0x110 [ 50.544500][ T4711] reconfigure_super+0x1d4/0x6f4 [ 50.545301][ T4711] path_mount+0xc88/0x1008 [ 50.545960][ T4711] __arm64_sys_mount+0x514/0x5f0 [ 50.546698][ T4711] invoke_syscall+0x98/0x2b0 [ 50.547423][ T4711] el0_svc_common+0x138/0x258 [ 50.548149][ T4711] do_el0_svc+0x58/0x13c [ 50.548773][ T4711] el0_svc+0x78/0x1d0 [ 50.549370][ T4711] el0t_64_sync_handler+0xcc/0xe4 [ 50.550161][ T4711] el0t_64_sync+0x1a0/0x1a4 [ 50.550955][ T4711] irq event stamp: 79398 [ 50.551663][ T4711] hardirqs last enabled at (79397): [] __up_console_sem+0xb4/0xfc [ 50.553162][ T4711] hardirqs last disabled at (79398): [] el1_dbg+0x24/0x80 [ 50.554464][ T4711] softirqs last enabled at (79366): [] handle_softirqs+0xa40/0xbe4 [ 50.555890][ T4711] softirqs last disabled at (79349): [] __irq_exit_rcu+0x240/0x43c [ 50.557297][ T4711] ---[ end trace 4d46d6dd039cd43f ]--- [ 50.558519][ T4711] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 50.559991][ T4711] BTRFS info (device loop0): forced readonly [ 50.561105][ T4711] BTRFS error (device loop0): Remounting read-write after error is not allowed [ 50.728326][ T4732] loop0: detected capacity change from 0 to 32768 [ 50.731317][ T4732] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4732) [ 50.734887][ T4732] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 50.736355][ T4732] BTRFS info (device loop0): enabling auto defrag [ 50.737321][ T4732] BTRFS info (device loop0): enabling disk space caching [ 50.738482][ T4732] BTRFS info (device loop0): disabling tree log [ 50.739413][ T4732] BTRFS info (device loop0): force clearing of disk cache [ 50.741034][ T4732] BTRFS info (device loop0): force zlib compression, level 3 [ 50.742091][ T4732] BTRFS info (device loop0): disabling disk space caching [ 50.743231][ T4732] BTRFS info (device loop0): has skinny extents [ 50.756224][ T4732] BTRFS info (device loop0): enabling ssd optimizations [ 50.758318][ T4732] BTRFS info (device loop0): clearing free space tree [ 50.759556][ T4732] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 50.761104][ T4732] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 50.765984][ T4732] FAULT_INJECTION: forcing a failure. [ 50.765984][ T4732] name failslab, interval 1, probability 0, space 0, times 0 [ 50.768061][ T4732] CPU: 0 PID: 4732 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 50.769452][ T4732] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 50.770991][ T4732] Call trace: [ 50.771479][ T4732] dump_backtrace+0x0/0x458 [ 50.772138][ T4732] show_stack+0x2c/0x3c [ 50.772751][ T4732] __dump_stack+0x30/0x40 [ 50.773369][ T4732] dump_stack_lvl+0xf4/0x15c [ 50.774015][ T4732] dump_stack+0x1c/0x5c [ 50.774620][ T4732] should_fail+0x3bc/0x514 [ 50.775355][ T4732] __should_failslab+0xbc/0x10c [ 50.776131][ T4732] should_failslab+0x10/0x28 [ 50.776847][ T4732] slab_pre_alloc_hook+0x64/0xe8 [ 50.777624][ T4732] kmem_cache_alloc_trace+0x98/0x3ec [ 50.778457][ T4732] bdi_split_work_to_wbs+0x3f4/0x77c [ 50.779336][ T4732] sync_inodes_sb+0x188/0x844 [ 50.780154][ T4732] sync_filesystem+0x160/0x218 [ 50.780956][ T4732] btrfs_remount+0x198/0x12b0 [ 50.781735][ T4732] legacy_reconfigure+0xf8/0x110 [ 50.782564][ T4732] reconfigure_super+0x1d4/0x6f4 [ 50.783354][ T4732] path_mount+0xc88/0x1008 [ 50.783973][ T4732] __arm64_sys_mount+0x514/0x5f0 [ 50.784716][ T4732] invoke_syscall+0x98/0x2b0 [ 50.785443][ T4732] el0_svc_common+0x138/0x258 [ 50.786097][ T4732] do_el0_svc+0x58/0x13c [ 50.786740][ T4732] el0_svc+0x78/0x1d0 [ 50.787356][ T4732] el0t_64_sync_handler+0xcc/0xe4 [ 50.788157][ T4732] el0t_64_sync+0x1a0/0x1a4 [ 50.961939][ T4753] loop0: detected capacity change from 0 to 32768 [ 50.964695][ T4753] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4753) [ 50.969099][ T4753] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 50.970721][ T4753] BTRFS info (device loop0): enabling auto defrag [ 50.984323][ T4753] FAULT_INJECTION: forcing a failure. [ 50.984323][ T4753] name failslab, interval 1, probability 0, space 0, times 0 [ 50.986448][ T4753] CPU: 0 PID: 4753 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 50.987884][ T4753] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 50.989550][ T4753] Call trace: [ 50.990087][ T4753] dump_backtrace+0x0/0x458 [ 50.990819][ T4753] show_stack+0x2c/0x3c [ 50.991494][ T4753] __dump_stack+0x30/0x40 [ 50.992186][ T4753] dump_stack_lvl+0xf4/0x15c [ 50.992891][ T4753] dump_stack+0x1c/0x5c [ 50.993565][ T4753] should_fail+0x3bc/0x514 [ 50.994263][ T4753] __should_failslab+0xbc/0x10c [ 50.994986][ T4753] should_failslab+0x10/0x28 [ 50.995688][ T4753] slab_pre_alloc_hook+0x64/0xe8 [ 50.996454][ T4753] kmem_cache_alloc+0x94/0x3d4 [ 50.997116][ T4753] start_transaction+0x4d0/0x13ec [ 50.997850][ T4753] btrfs_attach_transaction_barrier+0x30/0xac [ 50.998730][ T4753] btrfs_sync_fs+0x13c/0xb24 [ 50.999396][ T4753] sync_filesystem+0x1a0/0x218 [ 51.000151][ T4753] btrfs_remount+0x198/0x12b0 [ 51.000871][ T4753] legacy_reconfigure+0xf8/0x110 [ 51.001683][ T4753] reconfigure_super+0x1d4/0x6f4 [ 51.002529][ T4753] path_mount+0xc88/0x1008 [ 51.003172][ T4753] __arm64_sys_mount+0x514/0x5f0 [ 51.003932][ T4753] invoke_syscall+0x98/0x2b0 [ 51.004634][ T4753] el0_svc_common+0x138/0x258 [ 51.005332][ T4753] do_el0_svc+0x58/0x13c [ 51.006042][ T4753] el0_svc+0x78/0x1d0 [ 51.006673][ T4753] el0t_64_sync_handler+0xcc/0xe4 [ 51.007419][ T4753] el0t_64_sync+0x1a0/0x1a4 [ 51.183527][ T4774] loop0: detected capacity change from 0 to 32768 [ 51.185924][ T4774] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4774) [ 51.213931][ T4774] FAULT_INJECTION: forcing a failure. [ 51.213931][ T4774] name failslab, interval 1, probability 0, space 0, times 0 [ 51.216040][ T4774] CPU: 0 PID: 4774 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 51.217346][ T4774] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 51.218918][ T4774] Call trace: [ 51.219384][ T4774] dump_backtrace+0x0/0x458 [ 51.220056][ T4774] show_stack+0x2c/0x3c [ 51.220678][ T4774] __dump_stack+0x30/0x40 [ 51.221298][ T4774] dump_stack_lvl+0xf4/0x15c [ 51.222038][ T4774] dump_stack+0x1c/0x5c [ 51.222676][ T4774] should_fail+0x3bc/0x514 [ 51.223397][ T4774] __should_failslab+0xbc/0x10c [ 51.224222][ T4774] should_failslab+0x10/0x28 [ 51.224959][ T4774] slab_pre_alloc_hook+0x64/0xe8 [ 51.225755][ T4774] kmem_cache_alloc+0x94/0x3d4 [ 51.226525][ T4774] start_transaction+0x4d0/0x13ec [ 51.227325][ T4774] btrfs_attach_transaction_barrier+0x30/0xac [ 51.228385][ T4774] btrfs_sync_fs+0x13c/0xb24 [ 51.229052][ T4774] sync_filesystem+0x1a0/0x218 [ 51.229808][ T4774] btrfs_remount+0x198/0x12b0 [ 51.230568][ T4774] legacy_reconfigure+0xf8/0x110 [ 51.231270][ T4774] reconfigure_super+0x1d4/0x6f4 [ 51.232101][ T4774] path_mount+0xc88/0x1008 [ 51.232832][ T4774] __arm64_sys_mount+0x514/0x5f0 [ 51.233603][ T4774] invoke_syscall+0x98/0x2b0 [ 51.234320][ T4774] el0_svc_common+0x138/0x258 [ 51.235054][ T4774] do_el0_svc+0x58/0x13c [ 51.235737][ T4774] el0_svc+0x78/0x1d0 [ 51.236351][ T4774] el0t_64_sync_handler+0xcc/0xe4 [ 51.237094][ T4774] el0t_64_sync+0x1a0/0x1a4 [ 51.380104][ T4444] Bluetooth: hci0: command 0x041b tx timeout [ 51.411409][ T4795] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4795) [ 51.439340][ T4795] FAULT_INJECTION: forcing a failure. [ 51.439340][ T4795] name failslab, interval 1, probability 0, space 0, times 0 [ 51.441565][ T4795] CPU: 0 PID: 4795 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 51.442948][ T4795] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 51.444574][ T4795] Call trace: [ 51.445127][ T4795] dump_backtrace+0x0/0x458 [ 51.445866][ T4795] show_stack+0x2c/0x3c [ 51.446495][ T4795] __dump_stack+0x30/0x40 [ 51.447131][ T4795] dump_stack_lvl+0xf4/0x15c [ 51.447866][ T4795] dump_stack+0x1c/0x5c [ 51.448528][ T4795] should_fail+0x3bc/0x514 [ 51.449219][ T4795] __should_failslab+0xbc/0x10c [ 51.449944][ T4795] should_failslab+0x10/0x28 [ 51.450686][ T4795] slab_pre_alloc_hook+0x64/0xe8 [ 51.451508][ T4795] kmem_cache_alloc_trace+0x98/0x3ec [ 51.452358][ T4795] bdi_split_work_to_wbs+0x3f4/0x77c [ 51.453203][ T4795] sync_inodes_sb+0x188/0x844 [ 51.453985][ T4795] sync_filesystem+0x160/0x218 [ 51.454749][ T4795] btrfs_remount+0x198/0x12b0 [ 51.455501][ T4795] legacy_reconfigure+0xf8/0x110 [ 51.456273][ T4795] reconfigure_super+0x1d4/0x6f4 [ 51.457043][ T4795] path_mount+0xc88/0x1008 [ 51.457757][ T4795] __arm64_sys_mount+0x514/0x5f0 [ 51.458551][ T4795] invoke_syscall+0x98/0x2b0 [ 51.459312][ T4795] el0_svc_common+0x138/0x258 [ 51.460057][ T4795] do_el0_svc+0x58/0x13c [ 51.460712][ T4795] el0_svc+0x78/0x1d0 [ 51.461325][ T4795] el0t_64_sync_handler+0xcc/0xe4 [ 51.462158][ T4795] el0t_64_sync+0x1a0/0x1a4 [ 51.635078][ T4816] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4816) [ 51.660946][ T4816] FAULT_INJECTION: forcing a failure. [ 51.660946][ T4816] name failslab, interval 1, probability 0, space 0, times 0 [ 51.662954][ T4816] CPU: 0 PID: 4816 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 51.664371][ T4816] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 51.665812][ T4816] Call trace: [ 51.666272][ T4816] dump_backtrace+0x0/0x458 [ 51.666986][ T4816] show_stack+0x2c/0x3c [ 51.667623][ T4816] __dump_stack+0x30/0x40 [ 51.668334][ T4816] dump_stack_lvl+0xf4/0x15c [ 51.669047][ T4816] dump_stack+0x1c/0x5c [ 51.669681][ T4816] should_fail+0x3bc/0x514 [ 51.670380][ T4816] __should_failslab+0xbc/0x10c [ 51.671196][ T4816] should_failslab+0x10/0x28 [ 51.671967][ T4816] slab_pre_alloc_hook+0x64/0xe8 [ 51.672725][ T4816] kmem_cache_alloc+0x94/0x3d4 [ 51.673480][ T4816] start_transaction+0x4d0/0x13ec [ 51.674289][ T4816] btrfs_attach_transaction_barrier+0x30/0xac [ 51.675242][ T4816] btrfs_sync_fs+0x13c/0xb24 [ 51.676024][ T4816] sync_filesystem+0x1a0/0x218 [ 51.676832][ T4816] btrfs_remount+0x198/0x12b0 [ 51.677568][ T4816] legacy_reconfigure+0xf8/0x110 [ 51.678292][ T4816] reconfigure_super+0x1d4/0x6f4 [ 51.679060][ T4816] path_mount+0xc88/0x1008 [ 51.679779][ T4816] __arm64_sys_mount+0x514/0x5f0 [ 51.680530][ T4816] invoke_syscall+0x98/0x2b0 [ 51.681198][ T4816] el0_svc_common+0x138/0x258 [ 51.681917][ T4816] do_el0_svc+0x58/0x13c [ 51.682538][ T4816] el0_svc+0x78/0x1d0 [ 51.683174][ T4816] el0t_64_sync_handler+0xcc/0xe4 [ 51.683952][ T4816] el0t_64_sync+0x1a0/0x1a4 [ 51.873131][ T4837] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4837) [ 51.891332][ T4837] FAULT_INJECTION: forcing a failure. [ 51.891332][ T4837] name failslab, interval 1, probability 0, space 0, times 0 [ 51.893343][ T4837] CPU: 0 PID: 4837 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 51.894761][ T4837] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 51.896246][ T4837] Call trace: [ 51.896745][ T4837] dump_backtrace+0x0/0x458 [ 51.897397][ T4837] show_stack+0x2c/0x3c [ 51.898012][ T4837] __dump_stack+0x30/0x40 [ 51.898636][ T4837] dump_stack_lvl+0xf4/0x15c [ 51.899313][ T4837] dump_stack+0x1c/0x5c [ 51.899979][ T4837] should_fail+0x3bc/0x514 [ 51.900701][ T4837] __should_failslab+0xbc/0x10c [ 51.901419][ T4837] should_failslab+0x10/0x28 [ 51.902109][ T4837] slab_pre_alloc_hook+0x64/0xe8 [ 51.902873][ T4837] kmem_cache_alloc+0x94/0x3d4 [ 51.903670][ T4837] start_transaction+0x4d0/0x13ec [ 51.904468][ T4837] btrfs_attach_transaction_barrier+0x30/0xac [ 51.905413][ T4837] btrfs_sync_fs+0x13c/0xb24 [ 51.906119][ T4837] sync_filesystem+0x1a0/0x218 [ 51.906898][ T4837] btrfs_remount+0x198/0x12b0 [ 51.907621][ T4837] legacy_reconfigure+0xf8/0x110 [ 51.908391][ T4837] reconfigure_super+0x1d4/0x6f4 [ 51.909148][ T4837] path_mount+0xc88/0x1008 [ 51.909877][ T4837] __arm64_sys_mount+0x514/0x5f0 [ 51.910628][ T4837] invoke_syscall+0x98/0x2b0 [ 51.911342][ T4837] el0_svc_common+0x138/0x258 [ 51.912073][ T4837] do_el0_svc+0x58/0x13c [ 51.912725][ T4837] el0_svc+0x78/0x1d0 [ 51.913329][ T4837] el0t_64_sync_handler+0xcc/0xe4 [ 51.914068][ T4837] el0t_64_sync+0x1a0/0x1a4 [ 52.118272][ T4858] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4858) [ 52.145582][ T4858] FAULT_INJECTION: forcing a failure. [ 52.145582][ T4858] name failslab, interval 1, probability 0, space 0, times 0 [ 52.147574][ T4858] CPU: 0 PID: 4858 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 52.148888][ T4858] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 52.150276][ T4858] Call trace: [ 52.150714][ T4858] dump_backtrace+0x0/0x458 [ 52.151481][ T4858] show_stack+0x2c/0x3c [ 52.152136][ T4858] __dump_stack+0x30/0x40 [ 52.152824][ T4858] dump_stack_lvl+0xf4/0x15c [ 52.153590][ T4858] dump_stack+0x1c/0x5c [ 52.154256][ T4858] should_fail+0x3bc/0x514 [ 52.154967][ T4858] __should_failslab+0xbc/0x10c [ 52.155748][ T4858] should_failslab+0x10/0x28 [ 52.156498][ T4858] slab_pre_alloc_hook+0x64/0xe8 [ 52.157258][ T4858] kmem_cache_alloc+0x94/0x3d4 [ 52.157979][ T4858] start_transaction+0x4d0/0x13ec [ 52.158775][ T4858] btrfs_attach_transaction_barrier+0x30/0xac [ 52.159627][ T4858] btrfs_sync_fs+0x13c/0xb24 [ 52.160280][ T4858] sync_filesystem+0x1a0/0x218 [ 52.160961][ T4858] btrfs_remount+0x198/0x12b0 [ 52.161622][ T4858] legacy_reconfigure+0xf8/0x110 [ 52.162378][ T4858] reconfigure_super+0x1d4/0x6f4 [ 52.163168][ T4858] path_mount+0xc88/0x1008 [ 52.163930][ T4858] __arm64_sys_mount+0x514/0x5f0 [ 52.164701][ T4858] invoke_syscall+0x98/0x2b0 [ 52.165495][ T4858] el0_svc_common+0x138/0x258 [ 52.166263][ T4858] do_el0_svc+0x58/0x13c [ 52.166956][ T4858] el0_svc+0x78/0x1d0 [ 52.167561][ T4858] el0t_64_sync_handler+0xcc/0xe4 [ 52.168361][ T4858] el0t_64_sync+0x1a0/0x1a4 [ 52.302384][ T4879] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4879) [ 52.316080][ T4879] FAULT_INJECTION: forcing a failure. [ 52.316080][ T4879] name failslab, interval 1, probability 0, space 0, times 0 [ 52.318018][ T4879] CPU: 0 PID: 4879 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 52.319318][ T4879] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 52.320857][ T4879] Call trace: [ 52.321391][ T4879] dump_backtrace+0x0/0x458 [ 52.322157][ T4879] show_stack+0x2c/0x3c [ 52.322810][ T4879] __dump_stack+0x30/0x40 [ 52.323503][ T4879] dump_stack_lvl+0xf4/0x15c [ 52.324191][ T4879] dump_stack+0x1c/0x5c [ 52.324865][ T4879] should_fail+0x3bc/0x514 [ 52.325602][ T4879] __should_failslab+0xbc/0x10c [ 52.326415][ T4879] should_failslab+0x10/0x28 [ 52.327194][ T4879] slab_pre_alloc_hook+0x64/0xe8 [ 52.327946][ T4879] kmem_cache_alloc_trace+0x98/0x3ec [ 52.328737][ T4879] bdi_split_work_to_wbs+0x3f4/0x77c [ 52.329502][ T4879] __writeback_inodes_sb_nr+0x1ac/0x224 [ 52.330342][ T4879] writeback_inodes_sb+0x78/0x8c [ 52.331153][ T4879] sync_filesystem+0xa0/0x218 [ 52.331872][ T4879] btrfs_remount+0x198/0x12b0 [ 52.332570][ T4879] legacy_reconfigure+0xf8/0x110 [ 52.333318][ T4879] reconfigure_super+0x1d4/0x6f4 [ 52.334084][ T4879] path_mount+0xc88/0x1008 [ 52.334733][ T4879] __arm64_sys_mount+0x514/0x5f0 [ 52.335560][ T4879] invoke_syscall+0x98/0x2b0 [ 52.336310][ T4879] el0_svc_common+0x138/0x258 [ 52.337026][ T4879] do_el0_svc+0x58/0x13c [ 52.337693][ T4879] el0_svc+0x78/0x1d0 [ 52.338318][ T4879] el0t_64_sync_handler+0xcc/0xe4 [ 52.339105][ T4879] el0t_64_sync+0x1a0/0x1a4 1970/01/01 00:00:52 executed programs: 15 [ 52.506234][ T4900] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4900) [ 52.534625][ T4900] FAULT_INJECTION: forcing a failure. [ 52.534625][ T4900] name fail_page_alloc, interval 1, probability 0, space 0, times 1 [ 52.536669][ T4900] CPU: 0 PID: 4900 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 52.538135][ T4900] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 52.539561][ T4900] Call trace: [ 52.540023][ T4900] dump_backtrace+0x0/0x458 [ 52.540714][ T4900] show_stack+0x2c/0x3c [ 52.541281][ T4900] __dump_stack+0x30/0x40 [ 52.541980][ T4900] dump_stack_lvl+0xf4/0x15c [ 52.542709][ T4900] dump_stack+0x1c/0x5c [ 52.543356][ T4900] should_fail+0x3bc/0x514 [ 52.543974][ T4900] should_fail_alloc_page+0x74/0xa8 [ 52.544777][ T4900] prepare_alloc_pages+0x160/0x45c [ 52.545603][ T4900] __alloc_pages+0x108/0x470 [ 52.546373][ T4900] alloc_pages+0x34c/0x5c0 [ 52.547015][ T4900] new_slab+0xe0/0x544 [ 52.547620][ T4900] ___slab_alloc+0x6b4/0xd8c [ 52.548302][ T4900] __slab_alloc+0x68/0xc0 [ 52.548924][ T4900] kmem_cache_alloc_trace+0x2b8/0x3ec [ 52.549710][ T4900] bdi_split_work_to_wbs+0x3f4/0x77c [ 52.550533][ T4900] sync_inodes_sb+0x188/0x844 [ 52.551234][ T4900] sync_filesystem+0x160/0x218 [ 52.552059][ T4900] btrfs_remount+0x198/0x12b0 [ 52.552797][ T4900] legacy_reconfigure+0xf8/0x110 [ 52.553597][ T4900] reconfigure_super+0x1d4/0x6f4 [ 52.554383][ T4900] path_mount+0xc88/0x1008 [ 52.555073][ T4900] __arm64_sys_mount+0x514/0x5f0 [ 52.555840][ T4900] invoke_syscall+0x98/0x2b0 [ 52.556600][ T4900] el0_svc_common+0x138/0x258 [ 52.557378][ T4900] do_el0_svc+0x58/0x13c [ 52.558090][ T4900] el0_svc+0x78/0x1d0 [ 52.558695][ T4900] el0t_64_sync_handler+0xcc/0xe4 [ 52.559511][ T4900] el0t_64_sync+0x1a0/0x1a4 [ 52.753052][ T4921] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4921) [ 52.770759][ T4921] FAULT_INJECTION: forcing a failure. [ 52.770759][ T4921] name failslab, interval 1, probability 0, space 0, times 0 [ 52.772887][ T4921] CPU: 1 PID: 4921 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 52.774225][ T4921] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 52.775904][ T4921] Call trace: [ 52.776405][ T4921] dump_backtrace+0x0/0x458 [ 52.777061][ T4921] show_stack+0x2c/0x3c [ 52.777781][ T4921] __dump_stack+0x30/0x40 [ 52.778470][ T4921] dump_stack_lvl+0xf4/0x15c [ 52.779156][ T4921] dump_stack+0x1c/0x5c [ 52.779828][ T4921] should_fail+0x3bc/0x514 [ 52.780573][ T4921] __should_failslab+0xbc/0x10c [ 52.781405][ T4921] should_failslab+0x10/0x28 [ 52.782169][ T4921] slab_pre_alloc_hook+0x64/0xe8 [ 52.782918][ T4921] kmem_cache_alloc+0x94/0x3d4 [ 52.783667][ T4921] start_transaction+0x4d0/0x13ec [ 52.784462][ T4921] btrfs_attach_transaction_barrier+0x30/0xac [ 52.785402][ T4921] btrfs_sync_fs+0x13c/0xb24 [ 52.786105][ T4921] sync_filesystem+0x1a0/0x218 [ 52.786822][ T4921] btrfs_remount+0x198/0x12b0 [ 52.787518][ T4921] legacy_reconfigure+0xf8/0x110 [ 52.788250][ T4921] reconfigure_super+0x1d4/0x6f4 [ 52.788973][ T4921] path_mount+0xc88/0x1008 [ 52.789596][ T4921] __arm64_sys_mount+0x514/0x5f0 [ 52.790400][ T4921] invoke_syscall+0x98/0x2b0 [ 52.791036][ T4921] el0_svc_common+0x138/0x258 [ 52.791707][ T4921] do_el0_svc+0x58/0x13c [ 52.792303][ T4921] el0_svc+0x78/0x1d0 [ 52.792912][ T4921] el0t_64_sync_handler+0xcc/0xe4 [ 52.793743][ T4921] el0t_64_sync+0x1a0/0x1a4 [ 52.982012][ T4942] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4942) [ 53.005739][ T4942] FAULT_INJECTION: forcing a failure. [ 53.005739][ T4942] name failslab, interval 1, probability 0, space 0, times 0 [ 53.007870][ T4942] CPU: 1 PID: 4942 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.009339][ T4942] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 53.011015][ T4942] Call trace: [ 53.011529][ T4942] dump_backtrace+0x0/0x458 [ 53.012291][ T4942] show_stack+0x2c/0x3c [ 53.012963][ T4942] __dump_stack+0x30/0x40 [ 53.013671][ T4942] dump_stack_lvl+0xf4/0x15c [ 53.014417][ T4942] dump_stack+0x1c/0x5c [ 53.015073][ T4942] should_fail+0x3bc/0x514 [ 53.015784][ T4942] __should_failslab+0xbc/0x10c [ 53.016529][ T4942] should_failslab+0x10/0x28 [ 53.017255][ T4942] slab_pre_alloc_hook+0x64/0xe8 [ 53.018020][ T4942] kmem_cache_alloc+0x94/0x3d4 [ 53.018753][ T4942] start_transaction+0x4d0/0x13ec [ 53.019563][ T4942] btrfs_attach_transaction_barrier+0x30/0xac [ 53.020520][ T4942] btrfs_sync_fs+0x13c/0xb24 [ 53.021219][ T4942] sync_filesystem+0x1a0/0x218 [ 53.021946][ T4942] btrfs_remount+0x198/0x12b0 [ 53.022691][ T4942] legacy_reconfigure+0xf8/0x110 [ 53.023438][ T4942] reconfigure_super+0x1d4/0x6f4 [ 53.024132][ T4942] path_mount+0xc88/0x1008 [ 53.024773][ T4942] __arm64_sys_mount+0x514/0x5f0 [ 53.025530][ T4942] invoke_syscall+0x98/0x2b0 [ 53.026267][ T4942] el0_svc_common+0x138/0x258 [ 53.027078][ T4942] do_el0_svc+0x58/0x13c [ 53.027837][ T4942] el0_svc+0x78/0x1d0 [ 53.028513][ T4942] el0t_64_sync_handler+0xcc/0xe4 [ 53.029370][ T4942] el0t_64_sync+0x1a0/0x1a4 [ 53.221978][ T4963] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4963) [ 53.238342][ T4963] FAULT_INJECTION: forcing a failure. [ 53.238342][ T4963] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 53.240666][ T4963] CPU: 1 PID: 4963 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.241977][ T4963] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 53.243542][ T4963] Call trace: [ 53.244026][ T4963] dump_backtrace+0x0/0x458 [ 53.244645][ T4963] show_stack+0x2c/0x3c [ 53.245261][ T4963] __dump_stack+0x30/0x40 [ 53.245919][ T4963] dump_stack_lvl+0xf4/0x15c [ 53.246612][ T4963] dump_stack+0x1c/0x5c [ 53.247191][ T4963] should_fail+0x3bc/0x514 [ 53.247908][ T4963] should_fail_alloc_page+0x74/0xa8 [ 53.248775][ T4963] prepare_alloc_pages+0x160/0x45c [ 53.249586][ T4963] __alloc_pages+0x108/0x470 [ 53.250274][ T4963] alloc_pages+0x34c/0x5c0 [ 53.250946][ T4963] new_slab+0xe0/0x544 [ 53.251562][ T4963] ___slab_alloc+0x6b4/0xd8c [ 53.252270][ T4963] __slab_alloc+0x68/0xc0 [ 53.252917][ T4963] kmem_cache_alloc_trace+0x2b8/0x3ec [ 53.253775][ T4963] bdi_split_work_to_wbs+0x3f4/0x77c [ 53.254527][ T4963] sync_inodes_sb+0x188/0x844 [ 53.255278][ T4963] sync_filesystem+0x160/0x218 [ 53.256054][ T4963] btrfs_remount+0x198/0x12b0 [ 53.256789][ T4963] legacy_reconfigure+0xf8/0x110 [ 53.257578][ T4963] reconfigure_super+0x1d4/0x6f4 [ 53.258334][ T4963] path_mount+0xc88/0x1008 [ 53.259038][ T4963] __arm64_sys_mount+0x514/0x5f0 [ 53.259783][ T4963] invoke_syscall+0x98/0x2b0 [ 53.260509][ T4963] el0_svc_common+0x138/0x258 [ 53.261212][ T4963] do_el0_svc+0x58/0x13c [ 53.261832][ T4963] el0_svc+0x78/0x1d0 [ 53.262430][ T4963] el0t_64_sync_handler+0xcc/0xe4 [ 53.263171][ T4963] el0t_64_sync+0x1a0/0x1a4 [ 53.459725][ T4518] Bluetooth: hci0: command 0x040f tx timeout [ 53.463161][ T4984] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4984) [ 53.492421][ T4984] FAULT_INJECTION: forcing a failure. [ 53.492421][ T4984] name failslab, interval 1, probability 0, space 0, times 0 [ 53.494655][ T4984] CPU: 0 PID: 4984 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.496017][ T4984] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 53.497465][ T4984] Call trace: [ 53.497932][ T4984] dump_backtrace+0x0/0x458 [ 53.498700][ T4984] show_stack+0x2c/0x3c [ 53.499360][ T4984] __dump_stack+0x30/0x40 [ 53.500045][ T4984] dump_stack_lvl+0xf4/0x15c [ 53.500777][ T4984] dump_stack+0x1c/0x5c [ 53.501478][ T4984] should_fail+0x3bc/0x514 [ 53.502221][ T4984] __should_failslab+0xbc/0x10c [ 53.502989][ T4984] should_failslab+0x10/0x28 [ 53.503687][ T4984] slab_pre_alloc_hook+0x64/0xe8 [ 53.504390][ T4984] kmem_cache_alloc+0x94/0x3d4 [ 53.505134][ T4984] start_transaction+0x4d0/0x13ec [ 53.505932][ T4984] btrfs_attach_transaction_barrier+0x30/0xac [ 53.506932][ T4984] btrfs_sync_fs+0x13c/0xb24 [ 53.507672][ T4984] sync_filesystem+0x1a0/0x218 [ 53.508461][ T4984] btrfs_remount+0x198/0x12b0 [ 53.509235][ T4984] legacy_reconfigure+0xf8/0x110 [ 53.509926][ T4984] reconfigure_super+0x1d4/0x6f4 [ 53.510608][ T4984] path_mount+0xc88/0x1008 [ 53.511274][ T4984] __arm64_sys_mount+0x514/0x5f0 [ 53.511970][ T4984] invoke_syscall+0x98/0x2b0 [ 53.512646][ T4984] el0_svc_common+0x138/0x258 [ 53.513364][ T4984] do_el0_svc+0x58/0x13c [ 53.514048][ T4984] el0_svc+0x78/0x1d0 [ 53.514667][ T4984] el0t_64_sync_handler+0xcc/0xe4 [ 53.515443][ T4984] el0t_64_sync+0x1a0/0x1a4 [ 53.695184][ T5005] set_capacity_and_notify: 10 callbacks suppressed [ 53.695193][ T5005] loop0: detected capacity change from 0 to 32768 [ 53.698807][ T5005] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5005) [ 53.702719][ T5005] btrfs_printk: 142 callbacks suppressed [ 53.702724][ T5005] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 53.705506][ T5005] BTRFS info (device loop0): enabling auto defrag [ 53.706426][ T5005] BTRFS info (device loop0): enabling disk space caching [ 53.707747][ T5005] BTRFS info (device loop0): disabling tree log [ 53.708880][ T5005] BTRFS info (device loop0): force clearing of disk cache [ 53.710619][ T5005] BTRFS info (device loop0): force zlib compression, level 3 [ 53.711904][ T5005] BTRFS info (device loop0): disabling disk space caching [ 53.713024][ T5005] BTRFS info (device loop0): has skinny extents [ 53.726085][ T5005] BTRFS info (device loop0): enabling ssd optimizations [ 53.727763][ T5005] BTRFS info (device loop0): clearing free space tree [ 53.728959][ T5005] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 53.731379][ T5005] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 53.737558][ T5005] FAULT_INJECTION: forcing a failure. [ 53.737558][ T5005] name failslab, interval 1, probability 0, space 0, times 0 [ 53.740168][ T5005] CPU: 0 PID: 5005 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.741550][ T5005] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 53.743165][ T5005] Call trace: [ 53.743691][ T5005] dump_backtrace+0x0/0x458 [ 53.744434][ T5005] show_stack+0x2c/0x3c [ 53.745062][ T5005] __dump_stack+0x30/0x40 [ 53.745715][ T5005] dump_stack_lvl+0xf4/0x15c [ 53.746413][ T5005] dump_stack+0x1c/0x5c [ 53.747041][ T5005] should_fail+0x3bc/0x514 [ 53.747713][ T5005] __should_failslab+0xbc/0x10c [ 53.748516][ T5005] should_failslab+0x10/0x28 [ 53.749269][ T5005] slab_pre_alloc_hook+0x64/0xe8 [ 53.750051][ T5005] kmem_cache_alloc+0x94/0x3d4 [ 53.750849][ T5005] start_transaction+0x4d0/0x13ec [ 53.751714][ T5005] btrfs_attach_transaction_barrier+0x30/0xac [ 53.752659][ T5005] btrfs_sync_fs+0x13c/0xb24 [ 53.753372][ T5005] sync_filesystem+0x1a0/0x218 [ 53.754048][ T5005] btrfs_remount+0x198/0x12b0 [ 53.754723][ T5005] legacy_reconfigure+0xf8/0x110 [ 53.755511][ T5005] reconfigure_super+0x1d4/0x6f4 [ 53.756205][ T5005] path_mount+0xc88/0x1008 [ 53.756902][ T5005] __arm64_sys_mount+0x514/0x5f0 [ 53.757671][ T5005] invoke_syscall+0x98/0x2b0 [ 53.758406][ T5005] el0_svc_common+0x138/0x258 [ 53.759131][ T5005] do_el0_svc+0x58/0x13c [ 53.759789][ T5005] el0_svc+0x78/0x1d0 [ 53.760351][ T5005] el0t_64_sync_handler+0xcc/0xe4 [ 53.761056][ T5005] el0t_64_sync+0x1a0/0x1a4 [ 53.929183][ T5026] loop0: detected capacity change from 0 to 32768 [ 53.931748][ T5026] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5026) [ 53.935513][ T5026] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 53.936965][ T5026] BTRFS info (device loop0): enabling auto defrag [ 53.938110][ T5026] BTRFS info (device loop0): enabling disk space caching [ 53.939256][ T5026] BTRFS info (device loop0): disabling tree log [ 53.941195][ T5026] BTRFS info (device loop0): force clearing of disk cache [ 53.942420][ T5026] BTRFS info (device loop0): force zlib compression, level 3 [ 53.943565][ T5026] BTRFS info (device loop0): disabling disk space caching [ 53.944590][ T5026] BTRFS info (device loop0): has skinny extents [ 53.956778][ T5026] BTRFS info (device loop0): enabling ssd optimizations [ 53.958306][ T5026] BTRFS info (device loop0): clearing free space tree [ 53.959435][ T5026] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 53.961407][ T5026] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 53.967101][ T5026] FAULT_INJECTION: forcing a failure. [ 53.967101][ T5026] name failslab, interval 1, probability 0, space 0, times 0 [ 53.969215][ T5026] CPU: 1 PID: 5026 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.970617][ T5026] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 53.972159][ T5026] Call trace: [ 53.972639][ T5026] dump_backtrace+0x0/0x458 [ 53.973318][ T5026] show_stack+0x2c/0x3c [ 53.973923][ T5026] __dump_stack+0x30/0x40 [ 53.974561][ T5026] dump_stack_lvl+0xf4/0x15c [ 53.975315][ T5026] dump_stack+0x1c/0x5c [ 53.976013][ T5026] should_fail+0x3bc/0x514 [ 53.976754][ T5026] __should_failslab+0xbc/0x10c [ 53.977539][ T5026] should_failslab+0x10/0x28 [ 53.978286][ T5026] slab_pre_alloc_hook+0x64/0xe8 [ 53.979079][ T5026] kmem_cache_alloc+0x94/0x3d4 [ 53.979837][ T5026] start_transaction+0x4d0/0x13ec [ 53.980549][ T5026] btrfs_attach_transaction_barrier+0x30/0xac [ 53.981367][ T5026] btrfs_sync_fs+0x13c/0xb24 [ 53.982018][ T5026] sync_filesystem+0x1a0/0x218 [ 53.982703][ T5026] btrfs_remount+0x198/0x12b0 [ 53.983317][ T5026] legacy_reconfigure+0xf8/0x110 [ 53.983988][ T5026] reconfigure_super+0x1d4/0x6f4 [ 53.984689][ T5026] path_mount+0xc88/0x1008 [ 53.985458][ T5026] __arm64_sys_mount+0x514/0x5f0 [ 53.986226][ T5026] invoke_syscall+0x98/0x2b0 [ 53.986958][ T5026] el0_svc_common+0x138/0x258 [ 53.987739][ T5026] do_el0_svc+0x58/0x13c [ 53.988474][ T5026] el0_svc+0x78/0x1d0 [ 53.989158][ T5026] el0t_64_sync_handler+0xcc/0xe4 [ 53.989969][ T5026] el0t_64_sync+0x1a0/0x1a4 [ 54.169400][ T5047] loop0: detected capacity change from 0 to 32768 [ 54.171868][ T5047] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5047) [ 54.175985][ T5047] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 54.177294][ T5047] BTRFS info (device loop0): enabling auto defrag [ 54.178294][ T5047] BTRFS info (device loop0): enabling disk space caching [ 54.179385][ T5047] BTRFS info (device loop0): disabling tree log [ 54.180789][ T5047] BTRFS info (device loop0): force clearing of disk cache [ 54.181902][ T5047] BTRFS info (device loop0): force zlib compression, level 3 [ 54.182950][ T5047] BTRFS info (device loop0): disabling disk space caching [ 54.184028][ T5047] BTRFS info (device loop0): has skinny extents [ 54.194810][ T5047] BTRFS info (device loop0): enabling ssd optimizations [ 54.196368][ T5047] BTRFS info (device loop0): clearing free space tree [ 54.197382][ T5047] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 54.198807][ T5047] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 54.205625][ T5047] FAULT_INJECTION: forcing a failure. [ 54.205625][ T5047] name failslab, interval 1, probability 0, space 0, times 0 [ 54.207613][ T5047] CPU: 0 PID: 5047 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 54.208962][ T5047] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 54.210519][ T5047] Call trace: [ 54.211054][ T5047] dump_backtrace+0x0/0x458 [ 54.211749][ T5047] show_stack+0x2c/0x3c [ 54.212368][ T5047] __dump_stack+0x30/0x40 [ 54.213010][ T5047] dump_stack_lvl+0xf4/0x15c [ 54.213689][ T5047] dump_stack+0x1c/0x5c [ 54.214314][ T5047] should_fail+0x3bc/0x514 [ 54.215004][ T5047] __should_failslab+0xbc/0x10c [ 54.215743][ T5047] should_failslab+0x10/0x28 [ 54.216438][ T5047] slab_pre_alloc_hook+0x64/0xe8 [ 54.217196][ T5047] kmem_cache_alloc+0x94/0x3d4 [ 54.217863][ T5047] start_transaction+0x4d0/0x13ec [ 54.218620][ T5047] btrfs_attach_transaction_barrier+0x30/0xac [ 54.219438][ T5047] btrfs_sync_fs+0x13c/0xb24 [ 54.220071][ T5047] sync_filesystem+0x1a0/0x218 [ 54.220728][ T5047] btrfs_remount+0x198/0x12b0 [ 54.221415][ T5047] legacy_reconfigure+0xf8/0x110 [ 54.222086][ T5047] reconfigure_super+0x1d4/0x6f4 [ 54.222823][ T5047] path_mount+0xc88/0x1008 [ 54.223531][ T5047] __arm64_sys_mount+0x514/0x5f0 [ 54.224284][ T5047] invoke_syscall+0x98/0x2b0 [ 54.224996][ T5047] el0_svc_common+0x138/0x258 [ 54.225730][ T5047] do_el0_svc+0x58/0x13c [ 54.226354][ T5047] el0_svc+0x78/0x1d0 [ 54.227025][ T5047] el0t_64_sync_handler+0xcc/0xe4 [ 54.227788][ T5047] el0t_64_sync+0x1a0/0x1a4 [ 54.398699][ T5068] loop0: detected capacity change from 0 to 32768 [ 54.401088][ T5068] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5068) [ 54.405068][ T5068] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 54.406537][ T5068] BTRFS info (device loop0): enabling auto defrag [ 54.407505][ T5068] BTRFS info (device loop0): enabling disk space caching [ 54.408646][ T5068] BTRFS info (device loop0): disabling tree log [ 54.409811][ T5068] BTRFS info (device loop0): force clearing of disk cache [ 54.411006][ T5068] BTRFS info (device loop0): force zlib compression, level 3 [ 54.412275][ T5068] BTRFS info (device loop0): disabling disk space caching [ 54.413431][ T5068] BTRFS info (device loop0): has skinny extents [ 54.425461][ T5068] BTRFS info (device loop0): enabling ssd optimizations [ 54.427039][ T5068] BTRFS info (device loop0): clearing free space tree [ 54.428160][ T5068] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 54.430403][ T5068] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 54.435336][ T5068] FAULT_INJECTION: forcing a failure. [ 54.435336][ T5068] name failslab, interval 1, probability 0, space 0, times 0 [ 54.437358][ T5068] CPU: 1 PID: 5068 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 54.438722][ T5068] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 54.440298][ T5068] Call trace: [ 54.440797][ T5068] dump_backtrace+0x0/0x458 [ 54.441500][ T5068] show_stack+0x2c/0x3c [ 54.442130][ T5068] __dump_stack+0x30/0x40 [ 54.442780][ T5068] dump_stack_lvl+0xf4/0x15c [ 54.443488][ T5068] dump_stack+0x1c/0x5c [ 54.444167][ T5068] should_fail+0x3bc/0x514 [ 54.444914][ T5068] __should_failslab+0xbc/0x10c [ 54.445728][ T5068] should_failslab+0x10/0x28 [ 54.446501][ T5068] slab_pre_alloc_hook+0x64/0xe8 [ 54.447340][ T5068] kmem_cache_alloc_trace+0x98/0x3ec [ 54.448249][ T5068] bdi_split_work_to_wbs+0x3f4/0x77c [ 54.449084][ T5068] sync_inodes_sb+0x188/0x844 [ 54.449780][ T5068] sync_filesystem+0x160/0x218 [ 54.450508][ T5068] btrfs_remount+0x198/0x12b0 [ 54.451230][ T5068] legacy_reconfigure+0xf8/0x110 [ 54.452076][ T5068] reconfigure_super+0x1d4/0x6f4 [ 54.452871][ T5068] path_mount+0xc88/0x1008 [ 54.453603][ T5068] __arm64_sys_mount+0x514/0x5f0 [ 54.454392][ T5068] invoke_syscall+0x98/0x2b0 [ 54.455116][ T5068] el0_svc_common+0x138/0x258 [ 54.455913][ T5068] do_el0_svc+0x58/0x13c [ 54.456627][ T5068] el0_svc+0x78/0x1d0 [ 54.457270][ T5068] el0t_64_sync_handler+0xcc/0xe4 [ 54.458065][ T5068] el0t_64_sync+0x1a0/0x1a4 [ 54.630128][ T5089] loop0: detected capacity change from 0 to 32768 [ 54.639732][ T5089] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5089) [ 54.649277][ T5089] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 54.650661][ T5089] BTRFS info (device loop0): enabling auto defrag [ 54.651671][ T5089] BTRFS info (device loop0): enabling disk space caching [ 54.652726][ T5089] BTRFS info (device loop0): disabling tree log [ 54.653717][ T5089] BTRFS info (device loop0): force clearing of disk cache [ 54.654799][ T5089] BTRFS info (device loop0): force zlib compression, level 3 [ 54.655945][ T5089] BTRFS info (device loop0): disabling disk space caching [ 54.657028][ T5089] BTRFS info (device loop0): has skinny extents [ 54.665702][ T5089] BTRFS info (device loop0): enabling ssd optimizations [ 54.667178][ T5089] BTRFS info (device loop0): clearing free space tree [ 54.668194][ T5089] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 54.669857][ T5089] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 54.675977][ T5089] FAULT_INJECTION: forcing a failure. [ 54.675977][ T5089] name failslab, interval 1, probability 0, space 0, times 0 [ 54.677998][ T5089] CPU: 0 PID: 5089 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 54.679415][ T5089] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 54.680962][ T5089] Call trace: [ 54.681420][ T5089] dump_backtrace+0x0/0x458 [ 54.682063][ T5089] show_stack+0x2c/0x3c [ 54.682632][ T5089] __dump_stack+0x30/0x40 [ 54.683329][ T5089] dump_stack_lvl+0xf4/0x15c [ 54.684017][ T5089] dump_stack+0x1c/0x5c [ 54.684666][ T5089] should_fail+0x3bc/0x514 [ 54.685341][ T5089] __should_failslab+0xbc/0x10c [ 54.686072][ T5089] should_failslab+0x10/0x28 [ 54.686803][ T5089] slab_pre_alloc_hook+0x64/0xe8 [ 54.687606][ T5089] kmem_cache_alloc+0x94/0x3d4 [ 54.688350][ T5089] start_transaction+0x4d0/0x13ec [ 54.689136][ T5089] btrfs_attach_transaction_barrier+0x30/0xac [ 54.690055][ T5089] btrfs_sync_fs+0x13c/0xb24 [ 54.690772][ T5089] sync_filesystem+0x1a0/0x218 [ 54.691527][ T5089] btrfs_remount+0x198/0x12b0 [ 54.692296][ T5089] legacy_reconfigure+0xf8/0x110 [ 54.693078][ T5089] reconfigure_super+0x1d4/0x6f4 [ 54.693849][ T5089] path_mount+0xc88/0x1008 [ 54.694542][ T5089] __arm64_sys_mount+0x514/0x5f0 [ 54.695310][ T5089] invoke_syscall+0x98/0x2b0 [ 54.695993][ T5089] el0_svc_common+0x138/0x258 [ 54.696696][ T5089] do_el0_svc+0x58/0x13c [ 54.697326][ T5089] el0_svc+0x78/0x1d0 [ 54.697918][ T5089] el0t_64_sync_handler+0xcc/0xe4 [ 54.698670][ T5089] el0t_64_sync+0x1a0/0x1a4 [ 54.880343][ T5110] loop0: detected capacity change from 0 to 32768 [ 54.882936][ T5110] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5110) [ 54.886157][ T5110] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 54.887539][ T5110] BTRFS info (device loop0): enabling auto defrag [ 54.888670][ T5110] BTRFS info (device loop0): enabling disk space caching [ 54.890253][ T5110] BTRFS info (device loop0): disabling tree log [ 54.891179][ T5110] BTRFS info (device loop0): force clearing of disk cache [ 54.892399][ T5110] BTRFS info (device loop0): force zlib compression, level 3 [ 54.893596][ T5110] BTRFS info (device loop0): disabling disk space caching [ 54.894583][ T5110] BTRFS info (device loop0): has skinny extents [ 54.902961][ T5110] BTRFS info (device loop0): enabling ssd optimizations [ 54.904636][ T5110] BTRFS info (device loop0): clearing free space tree [ 54.905837][ T5110] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 54.907295][ T5110] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 54.914622][ T5110] FAULT_INJECTION: forcing a failure. [ 54.914622][ T5110] name failslab, interval 1, probability 0, space 0, times 0 [ 54.916556][ T5110] CPU: 0 PID: 5110 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 54.917955][ T5110] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 54.919515][ T5110] Call trace: [ 54.920013][ T5110] dump_backtrace+0x0/0x458 [ 54.920705][ T5110] show_stack+0x2c/0x3c [ 54.921356][ T5110] __dump_stack+0x30/0x40 [ 54.922008][ T5110] dump_stack_lvl+0xf4/0x15c [ 54.922742][ T5110] dump_stack+0x1c/0x5c [ 54.923413][ T5110] should_fail+0x3bc/0x514 [ 54.924149][ T5110] __should_failslab+0xbc/0x10c [ 54.924927][ T5110] should_failslab+0x10/0x28 [ 54.925658][ T5110] slab_pre_alloc_hook+0x64/0xe8 [ 54.926392][ T5110] kmem_cache_alloc+0x94/0x3d4 [ 54.927128][ T5110] btrfs_alloc_path+0x5c/0x68 [ 54.927848][ T5110] __btrfs_free_extent+0x1a8/0x1abc [ 54.928632][ T5110] __btrfs_run_delayed_refs+0xbf0/0x348c [ 54.929496][ T5110] btrfs_run_delayed_refs+0x124/0x458 [ 54.930330][ T5110] btrfs_commit_transaction+0x1e0/0x3078 [ 54.931147][ T5110] btrfs_sync_fs+0x628/0xb24 [ 54.931828][ T5110] sync_filesystem+0x1a0/0x218 [ 54.932538][ T5110] btrfs_remount+0x198/0x12b0 [ 54.933235][ T5110] legacy_reconfigure+0xf8/0x110 [ 54.933955][ T5110] reconfigure_super+0x1d4/0x6f4 [ 54.934677][ T5110] path_mount+0xc88/0x1008 [ 54.935338][ T5110] __arm64_sys_mount+0x514/0x5f0 [ 54.936150][ T5110] invoke_syscall+0x98/0x2b0 [ 54.936881][ T5110] el0_svc_common+0x138/0x258 [ 54.937601][ T5110] do_el0_svc+0x58/0x13c [ 54.938262][ T5110] el0_svc+0x78/0x1d0 [ 54.938899][ T5110] el0t_64_sync_handler+0xcc/0xe4 [ 54.939702][ T5110] el0t_64_sync+0x1a0/0x1a4 [ 54.942192][ T5110] BTRFS error (device loop0): failed to run delayed ref for logical 5255168 num_bytes 4096 type 176 action 2 ref_mod 1: -12 [ 54.944206][ T5110] ------------[ cut here ]------------ [ 54.945119][ T5110] WARNING: CPU: 0 PID: 5110 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 54.946657][ T5110] Modules linked in: [ 54.947242][ T5110] CPU: 0 PID: 5110 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 54.948586][ T5110] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 54.950063][ T5110] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 54.951251][ T5110] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 54.952073][ T5110] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 54.952941][ T5110] sp : ffff800021637530 [ 54.953583][ T5110] x29: ffff800021637540 x28: ffff0000c81b0000 x27: dfff800000000000 [ 54.954833][ T5110] x26: ffff0000c81b0024 x25: ffff0000d21dc000 x24: 1fffe0001b977e21 [ 54.956040][ T5110] x23: 1fffe0001b977e21 x22: ffff0000dcbbf108 x21: 00000000fffffff4 [ 54.957282][ T5110] x20: 0000000000000051 x19: ffff0000dcbbf0b0 x18: 0000000000000001 [ 54.958535][ T5110] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 54.959682][ T5110] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 54.960832][ T5110] x11: 0000000000000000 x10: 0000000000000000 x9 : c59c16cee1904300 [ 54.962020][ T5110] x8 : c59c16cee1904300 x7 : 0000000000000001 x6 : 0000000000000001 [ 54.963174][ T5110] x5 : ffff800021636e38 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 54.964303][ T5110] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 54.965455][ T5110] Call trace: [ 54.965908][ T5110] btrfs_run_delayed_refs+0x3e4/0x458 [ 54.966622][ T5110] btrfs_commit_transaction+0x1e0/0x3078 [ 54.967479][ T5110] btrfs_sync_fs+0x628/0xb24 [ 54.968167][ T5110] sync_filesystem+0x1a0/0x218 [ 54.968846][ T5110] btrfs_remount+0x198/0x12b0 [ 54.969593][ T5110] legacy_reconfigure+0xf8/0x110 [ 54.970423][ T5110] reconfigure_super+0x1d4/0x6f4 [ 54.971195][ T5110] path_mount+0xc88/0x1008 [ 54.971879][ T5110] __arm64_sys_mount+0x514/0x5f0 [ 54.972645][ T5110] invoke_syscall+0x98/0x2b0 [ 54.973364][ T5110] el0_svc_common+0x138/0x258 [ 54.974037][ T5110] do_el0_svc+0x58/0x13c [ 54.974684][ T5110] el0_svc+0x78/0x1d0 [ 54.975300][ T5110] el0t_64_sync_handler+0xcc/0xe4 [ 54.976067][ T5110] el0t_64_sync+0x1a0/0x1a4 [ 54.976789][ T5110] irq event stamp: 79730 [ 54.977451][ T5110] hardirqs last enabled at (79729): [] __up_console_sem+0xb4/0xfc [ 54.978902][ T5110] hardirqs last disabled at (79730): [] el1_dbg+0x24/0x80 [ 54.980270][ T5110] softirqs last enabled at (79694): [] handle_softirqs+0xa40/0xbe4 [ 54.981865][ T5110] softirqs last disabled at (79631): [] __irq_exit_rcu+0x240/0x43c [ 54.983453][ T5110] ---[ end trace 4d46d6dd039cd440 ]--- [ 54.985794][ T5110] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 54.987252][ T5110] BTRFS info (device loop0): forced readonly [ 54.988174][ T5110] BTRFS error (device loop0): Remounting read-write after error is not allowed [ 55.158253][ T5131] loop0: detected capacity change from 0 to 32768 [ 55.161977][ T5131] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5131) [ 55.166787][ T5131] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 55.168219][ T5131] BTRFS info (device loop0): enabling auto defrag [ 55.169333][ T5131] BTRFS info (device loop0): enabling disk space caching [ 55.170788][ T5131] BTRFS info (device loop0): disabling tree log [ 55.171701][ T5131] BTRFS info (device loop0): force clearing of disk cache [ 55.172812][ T5131] BTRFS info (device loop0): force zlib compression, level 3 [ 55.174100][ T5131] BTRFS info (device loop0): disabling disk space caching [ 55.175223][ T5131] BTRFS info (device loop0): has skinny extents [ 55.185680][ T5131] BTRFS info (device loop0): enabling ssd optimizations [ 55.187348][ T5131] BTRFS info (device loop0): clearing free space tree [ 55.188574][ T5131] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 55.190902][ T5131] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 55.197414][ T5131] FAULT_INJECTION: forcing a failure. [ 55.197414][ T5131] name failslab, interval 1, probability 0, space 0, times 0 [ 55.199552][ T5131] CPU: 0 PID: 5131 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.200977][ T5131] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 55.202491][ T5131] Call trace: [ 55.202972][ T5131] dump_backtrace+0x0/0x458 [ 55.203650][ T5131] show_stack+0x2c/0x3c [ 55.204232][ T5131] __dump_stack+0x30/0x40 [ 55.204900][ T5131] dump_stack_lvl+0xf4/0x15c [ 55.205595][ T5131] dump_stack+0x1c/0x5c [ 55.206211][ T5131] should_fail+0x3bc/0x514 [ 55.206882][ T5131] __should_failslab+0xbc/0x10c [ 55.207528][ T5131] should_failslab+0x10/0x28 [ 55.208147][ T5131] slab_pre_alloc_hook+0x64/0xe8 [ 55.208803][ T5131] kmem_cache_alloc+0x94/0x3d4 [ 55.209455][ T5131] btrfs_alloc_path+0x5c/0x68 [ 55.210073][ T5131] __btrfs_free_extent+0x1a8/0x1abc [ 55.210781][ T5131] __btrfs_run_delayed_refs+0xbf0/0x348c [ 55.211539][ T5131] btrfs_run_delayed_refs+0x124/0x458 [ 55.212299][ T5131] btrfs_commit_transaction+0x1e0/0x3078 [ 55.213212][ T5131] btrfs_sync_fs+0x628/0xb24 [ 55.213950][ T5131] sync_filesystem+0x1a0/0x218 [ 55.214688][ T5131] btrfs_remount+0x198/0x12b0 [ 55.215422][ T5131] legacy_reconfigure+0xf8/0x110 [ 55.216158][ T5131] reconfigure_super+0x1d4/0x6f4 [ 55.216960][ T5131] path_mount+0xc88/0x1008 [ 55.217641][ T5131] __arm64_sys_mount+0x514/0x5f0 [ 55.218405][ T5131] invoke_syscall+0x98/0x2b0 [ 55.219171][ T5131] el0_svc_common+0x138/0x258 [ 55.219923][ T5131] do_el0_svc+0x58/0x13c [ 55.220570][ T5131] el0_svc+0x78/0x1d0 [ 55.221150][ T5131] el0t_64_sync_handler+0xcc/0xe4 [ 55.221891][ T5131] el0t_64_sync+0x1a0/0x1a4 [ 55.224503][ T5131] BTRFS error (device loop0): failed to run delayed ref for logical 5255168 num_bytes 4096 type 176 action 2 ref_mod 1: -12 [ 55.226641][ T5131] ------------[ cut here ]------------ [ 55.227638][ T5131] WARNING: CPU: 1 PID: 5131 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 55.229092][ T5131] Modules linked in: [ 55.229658][ T5131] CPU: 1 PID: 5131 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.231174][ T5131] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 55.232788][ T5131] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 55.233997][ T5131] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 55.234895][ T5131] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 55.235811][ T5131] sp : ffff800021967530 [ 55.236529][ T5131] x29: ffff800021967540 x28: ffff0000cd8dd000 x27: dfff800000000000 [ 55.237805][ T5131] x26: ffff0000cd8dd024 x25: ffff0000cf31c000 x24: 1fffe0001bc88821 [ 55.239062][ T5131] x23: 1fffe0001bc88821 x22: ffff0000de444108 x21: 00000000fffffff4 [ 55.240296][ T5131] x20: 0000000000000051 x19: ffff0000de4440b0 x18: 0000000000000001 [ 55.241589][ T5131] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 55.242884][ T5131] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 55.244105][ T5131] x11: 0000000000000000 x10: 0000000000000000 x9 : 53d8ffc020e95100 [ 55.245356][ T5131] x8 : 53d8ffc020e95100 x7 : 0000000000000001 x6 : 0000000000000001 [ 55.246567][ T5131] x5 : ffff800021966e38 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 55.247785][ T5131] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 55.248933][ T5131] Call trace: [ 55.249495][ T5131] btrfs_run_delayed_refs+0x3e4/0x458 [ 55.250423][ T5131] btrfs_commit_transaction+0x1e0/0x3078 [ 55.251314][ T5131] btrfs_sync_fs+0x628/0xb24 [ 55.252093][ T5131] sync_filesystem+0x1a0/0x218 [ 55.252882][ T5131] btrfs_remount+0x198/0x12b0 [ 55.253632][ T5131] legacy_reconfigure+0xf8/0x110 [ 55.254431][ T5131] reconfigure_super+0x1d4/0x6f4 [ 55.255286][ T5131] path_mount+0xc88/0x1008 [ 55.255992][ T5131] __arm64_sys_mount+0x514/0x5f0 [ 55.256819][ T5131] invoke_syscall+0x98/0x2b0 [ 55.257541][ T5131] el0_svc_common+0x138/0x258 [ 55.258284][ T5131] do_el0_svc+0x58/0x13c [ 55.258950][ T5131] el0_svc+0x78/0x1d0 [ 55.259579][ T5131] el0t_64_sync_handler+0xcc/0xe4 [ 55.260345][ T5131] el0t_64_sync+0x1a0/0x1a4 [ 55.261064][ T5131] irq event stamp: 79676 [ 55.261767][ T5131] hardirqs last enabled at (79675): [] __up_console_sem+0xb4/0xfc [ 55.263423][ T5131] hardirqs last disabled at (79676): [] el1_dbg+0x24/0x80 [ 55.264850][ T5131] softirqs last enabled at (79644): [] handle_softirqs+0xa40/0xbe4 [ 55.266388][ T5131] softirqs last disabled at (79599): [] __irq_exit_rcu+0x240/0x43c [ 55.267996][ T5131] ---[ end trace 4d46d6dd039cd441 ]--- [ 55.269065][ T5131] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 55.271336][ T5131] BTRFS info (device loop0): forced readonly [ 55.272268][ T5131] BTRFS error (device loop0): Remounting read-write after error is not allowed [ 55.453458][ T5152] loop0: detected capacity change from 0 to 32768 [ 55.455768][ T5152] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5152) [ 55.460043][ T5152] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 55.461478][ T5152] BTRFS info (device loop0): enabling auto defrag [ 55.462444][ T5152] BTRFS info (device loop0): enabling disk space caching [ 55.463659][ T5152] BTRFS info (device loop0): disabling tree log [ 55.464552][ T5152] BTRFS info (device loop0): force clearing of disk cache [ 55.466710][ T5152] BTRFS info (device loop0): force zlib compression, level 3 [ 55.467981][ T5152] BTRFS info (device loop0): disabling disk space caching [ 55.469137][ T5152] BTRFS info (device loop0): has skinny extents [ 55.477874][ T5152] BTRFS info (device loop0): enabling ssd optimizations [ 55.479435][ T5152] BTRFS info (device loop0): clearing free space tree [ 55.480730][ T5152] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 55.482157][ T5152] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 55.488599][ T5152] FAULT_INJECTION: forcing a failure. [ 55.488599][ T5152] name failslab, interval 1, probability 0, space 0, times 0 [ 55.490935][ T5152] CPU: 0 PID: 5152 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.492249][ T5152] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 55.493856][ T5152] Call trace: [ 55.494384][ T5152] dump_backtrace+0x0/0x458 [ 55.495093][ T5152] show_stack+0x2c/0x3c [ 55.495676][ T5152] __dump_stack+0x30/0x40 [ 55.496320][ T5152] dump_stack_lvl+0xf4/0x15c [ 55.496999][ T5152] dump_stack+0x1c/0x5c [ 55.497643][ T5152] should_fail+0x3bc/0x514 [ 55.498316][ T5152] __should_failslab+0xbc/0x10c [ 55.499086][ T5152] should_failslab+0x10/0x28 [ 55.499813][ T5152] slab_pre_alloc_hook+0x64/0xe8 [ 55.500605][ T5152] kmem_cache_alloc+0x94/0x3d4 [ 55.501367][ T5152] start_transaction+0x4d0/0x13ec [ 55.502134][ T5152] btrfs_attach_transaction_barrier+0x30/0xac [ 55.503003][ T5152] btrfs_sync_fs+0x13c/0xb24 [ 55.503660][ T5152] sync_filesystem+0x1a0/0x218 [ 55.504362][ T5152] btrfs_remount+0x198/0x12b0 [ 55.505034][ T5152] legacy_reconfigure+0xf8/0x110 [ 55.505713][ T5152] reconfigure_super+0x1d4/0x6f4 [ 55.506522][ T5152] path_mount+0xc88/0x1008 [ 55.507230][ T5152] __arm64_sys_mount+0x514/0x5f0 [ 55.508042][ T5152] invoke_syscall+0x98/0x2b0 [ 55.508804][ T5152] el0_svc_common+0x138/0x258 [ 55.509571][ T5152] do_el0_svc+0x58/0x13c [ 55.510221][ T5152] el0_svc+0x78/0x1d0 [ 55.510852][ T5152] el0t_64_sync_handler+0xcc/0xe4 [ 55.511693][ T5152] el0t_64_sync+0x1a0/0x1a4 [ 55.539695][ T4517] Bluetooth: hci0: command 0x0419 tx timeout [ 55.676522][ T5173] loop0: detected capacity change from 0 to 32768 [ 55.679033][ T5173] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5173) [ 55.682530][ T5173] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 55.683797][ T5173] BTRFS info (device loop0): enabling auto defrag [ 55.703696][ T5173] FAULT_INJECTION: forcing a failure. [ 55.703696][ T5173] name failslab, interval 1, probability 0, space 0, times 0 [ 55.705696][ T5173] CPU: 1 PID: 5173 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.707097][ T5173] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 55.708715][ T5173] Call trace: [ 55.709210][ T5173] dump_backtrace+0x0/0x458 [ 55.709919][ T5173] show_stack+0x2c/0x3c [ 55.710591][ T5173] __dump_stack+0x30/0x40 [ 55.711235][ T5173] dump_stack_lvl+0xf4/0x15c [ 55.711972][ T5173] dump_stack+0x1c/0x5c [ 55.712607][ T5173] should_fail+0x3bc/0x514 [ 55.713278][ T5173] __should_failslab+0xbc/0x10c [ 55.713988][ T5173] should_failslab+0x10/0x28 [ 55.714699][ T5173] slab_pre_alloc_hook+0x64/0xe8 [ 55.715382][ T5173] kmem_cache_alloc_trace+0x98/0x3ec [ 55.716088][ T5173] bdi_split_work_to_wbs+0x3f4/0x77c [ 55.716910][ T5173] __writeback_inodes_sb_nr+0x1ac/0x224 [ 55.717707][ T5173] writeback_inodes_sb+0x78/0x8c [ 55.718452][ T5173] sync_filesystem+0xa0/0x218 [ 55.719169][ T5173] btrfs_remount+0x198/0x12b0 [ 55.719889][ T5173] legacy_reconfigure+0xf8/0x110 [ 55.720677][ T5173] reconfigure_super+0x1d4/0x6f4 [ 55.721456][ T5173] path_mount+0xc88/0x1008 [ 55.722180][ T5173] __arm64_sys_mount+0x514/0x5f0 [ 55.722923][ T5173] invoke_syscall+0x98/0x2b0 [ 55.723635][ T5173] el0_svc_common+0x138/0x258 [ 55.724394][ T5173] do_el0_svc+0x58/0x13c [ 55.725100][ T5173] el0_svc+0x78/0x1d0 [ 55.725707][ T5173] el0t_64_sync_handler+0xcc/0xe4 [ 55.726508][ T5173] el0t_64_sync+0x1a0/0x1a4 [ 55.896698][ T5194] loop0: detected capacity change from 0 to 32768 [ 55.899214][ T5194] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5194) [ 55.924377][ T5194] FAULT_INJECTION: forcing a failure. [ 55.924377][ T5194] name failslab, interval 1, probability 0, space 0, times 0 [ 55.926213][ T5194] CPU: 1 PID: 5194 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.927607][ T5194] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 55.929158][ T5194] Call trace: [ 55.929673][ T5194] dump_backtrace+0x0/0x458 [ 55.930406][ T5194] show_stack+0x2c/0x3c [ 55.931194][ T5194] __dump_stack+0x30/0x40 [ 55.931954][ T5194] dump_stack_lvl+0xf4/0x15c [ 55.932731][ T5194] dump_stack+0x1c/0x5c [ 55.933378][ T5194] should_fail+0x3bc/0x514 [ 55.934096][ T5194] __should_failslab+0xbc/0x10c [ 55.934870][ T5194] should_failslab+0x10/0x28 [ 55.935590][ T5194] slab_pre_alloc_hook+0x64/0xe8 [ 55.936343][ T5194] kmem_cache_alloc+0x94/0x3d4 [ 55.937108][ T5194] btrfs_alloc_path+0x5c/0x68 [ 55.937821][ T5194] __btrfs_free_extent+0x1a8/0x1abc [ 55.938592][ T5194] __btrfs_run_delayed_refs+0xbf0/0x348c [ 55.939427][ T5194] btrfs_run_delayed_refs+0x124/0x458 [ 55.940209][ T5194] btrfs_commit_transaction+0x1e0/0x3078 [ 55.941095][ T5194] btrfs_sync_fs+0x628/0xb24 [ 55.941832][ T5194] sync_filesystem+0x1a0/0x218 [ 55.942544][ T5194] btrfs_remount+0x198/0x12b0 [ 55.943339][ T5194] legacy_reconfigure+0xf8/0x110 [ 55.944079][ T5194] reconfigure_super+0x1d4/0x6f4 [ 55.944776][ T5194] path_mount+0xc88/0x1008 [ 55.945398][ T5194] __arm64_sys_mount+0x514/0x5f0 [ 55.946099][ T5194] invoke_syscall+0x98/0x2b0 [ 55.946795][ T5194] el0_svc_common+0x138/0x258 [ 55.947597][ T5194] do_el0_svc+0x58/0x13c [ 55.948269][ T5194] el0_svc+0x78/0x1d0 [ 55.948907][ T5194] el0t_64_sync_handler+0xcc/0xe4 [ 55.949648][ T5194] el0t_64_sync+0x1a0/0x1a4 [ 55.952209][ T5194] BTRFS error (device loop0): failed to run delayed ref for logical 5255168 num_bytes 4096 type 176 action 2 ref_mod 1: -12 [ 55.954083][ T5194] ------------[ cut here ]------------ [ 55.955068][ T5194] WARNING: CPU: 1 PID: 5194 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 55.956647][ T5194] Modules linked in: [ 55.957230][ T5194] CPU: 1 PID: 5194 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.958630][ T5194] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 55.960143][ T5194] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 55.961361][ T5194] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 55.962266][ T5194] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 55.963257][ T5194] sp : ffff800021be7530 [ 55.963917][ T5194] x29: ffff800021be7540 x28: ffff0000c2a9b000 x27: dfff800000000000 [ 55.965264][ T5194] x26: ffff0000c2a9b024 x25: ffff0000de19c000 x24: 1fffe0001b97ac4d [ 55.966496][ T5194] x23: 1fffe0001b97ac4d x22: ffff0000dcbd6268 x21: 00000000fffffff4 [ 55.967696][ T5194] x20: 0000000000000051 x19: ffff0000dcbd6210 x18: 0000000000000001 [ 55.968901][ T5194] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 55.970080][ T5194] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 55.971250][ T5194] x11: 0000000000000000 x10: 0000000000000000 x9 : d4e5a7f74c01b200 [ 55.972508][ T5194] x8 : d4e5a7f74c01b200 x7 : 0000000000000001 x6 : 0000000000000001 [ 55.973742][ T5194] x5 : ffff800021be6e38 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 55.975162][ T5194] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 55.976502][ T5194] Call trace: [ 55.977020][ T5194] btrfs_run_delayed_refs+0x3e4/0x458 [ 55.977896][ T5194] btrfs_commit_transaction+0x1e0/0x3078 [ 55.978813][ T5194] btrfs_sync_fs+0x628/0xb24 [ 55.979527][ T5194] sync_filesystem+0x1a0/0x218 [ 55.980285][ T5194] btrfs_remount+0x198/0x12b0 [ 55.981069][ T5194] legacy_reconfigure+0xf8/0x110 [ 55.981870][ T5194] reconfigure_super+0x1d4/0x6f4 [ 55.982586][ T5194] path_mount+0xc88/0x1008 [ 55.983270][ T5194] __arm64_sys_mount+0x514/0x5f0 [ 55.983994][ T5194] invoke_syscall+0x98/0x2b0 [ 55.984677][ T5194] el0_svc_common+0x138/0x258 [ 55.985375][ T5194] do_el0_svc+0x58/0x13c [ 55.986007][ T5194] el0_svc+0x78/0x1d0 [ 55.986662][ T5194] el0t_64_sync_handler+0xcc/0xe4 [ 55.987501][ T5194] el0t_64_sync+0x1a0/0x1a4 [ 55.988235][ T5194] irq event stamp: 79124 [ 55.988905][ T5194] hardirqs last enabled at (79123): [] __up_console_sem+0xb4/0xfc [ 55.990435][ T5194] hardirqs last disabled at (79124): [] el1_dbg+0x24/0x80 [ 55.991846][ T5194] softirqs last enabled at (79092): [] handle_softirqs+0xa40/0xbe4 [ 55.993342][ T5194] softirqs last disabled at (79079): [] __irq_exit_rcu+0x240/0x43c [ 55.994888][ T5194] ---[ end trace 4d46d6dd039cd442 ]--- [ 55.995959][ T5194] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 55.997426][ T5194] BTRFS error (device loop0): Remounting read-write after error is not allowed [ 56.188426][ T5215] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5215) [ 56.212365][ T5215] FAULT_INJECTION: forcing a failure. [ 56.212365][ T5215] name failslab, interval 1, probability 0, space 0, times 0 [ 56.214296][ T5215] CPU: 0 PID: 5215 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 56.215720][ T5215] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 56.217238][ T5215] Call trace: [ 56.217723][ T5215] dump_backtrace+0x0/0x458 [ 56.218429][ T5215] show_stack+0x2c/0x3c [ 56.219067][ T5215] __dump_stack+0x30/0x40 [ 56.219738][ T5215] dump_stack_lvl+0xf4/0x15c [ 56.220465][ T5215] dump_stack+0x1c/0x5c [ 56.221152][ T5215] should_fail+0x3bc/0x514 [ 56.221854][ T5215] __should_failslab+0xbc/0x10c [ 56.222647][ T5215] should_failslab+0x10/0x28 [ 56.223367][ T5215] slab_pre_alloc_hook+0x64/0xe8 [ 56.224110][ T5215] kmem_cache_alloc+0x94/0x3d4 [ 56.224820][ T5215] start_transaction+0x4d0/0x13ec [ 56.225609][ T5215] btrfs_attach_transaction_barrier+0x30/0xac [ 56.226528][ T5215] btrfs_sync_fs+0x13c/0xb24 [ 56.227232][ T5215] sync_filesystem+0x1a0/0x218 [ 56.227961][ T5215] btrfs_remount+0x198/0x12b0 [ 56.228654][ T5215] legacy_reconfigure+0xf8/0x110 [ 56.229357][ T5215] reconfigure_super+0x1d4/0x6f4 [ 56.230088][ T5215] path_mount+0xc88/0x1008 [ 56.230722][ T5215] __arm64_sys_mount+0x514/0x5f0 [ 56.231438][ T5215] invoke_syscall+0x98/0x2b0 [ 56.232159][ T5215] el0_svc_common+0x138/0x258 [ 56.232814][ T5215] do_el0_svc+0x58/0x13c [ 56.233512][ T5215] el0_svc+0x78/0x1d0 [ 56.234168][ T5215] el0t_64_sync_handler+0xcc/0xe4 [ 56.235008][ T5215] el0t_64_sync+0x1a0/0x1a4 [ 56.400078][ T5236] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5236) [ 56.431737][ T5236] FAULT_INJECTION: forcing a failure. [ 56.431737][ T5236] name failslab, interval 1, probability 0, space 0, times 0 [ 56.433739][ T5236] CPU: 0 PID: 5236 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 56.435128][ T5236] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 56.436558][ T5236] Call trace: [ 56.436981][ T5236] dump_backtrace+0x0/0x458 [ 56.437658][ T5236] show_stack+0x2c/0x3c [ 56.438336][ T5236] __dump_stack+0x30/0x40 [ 56.438965][ T5236] dump_stack_lvl+0xf4/0x15c [ 56.439720][ T5236] dump_stack+0x1c/0x5c [ 56.440432][ T5236] should_fail+0x3bc/0x514 [ 56.441136][ T5236] __should_failslab+0xbc/0x10c [ 56.441903][ T5236] should_failslab+0x10/0x28 [ 56.442581][ T5236] slab_pre_alloc_hook+0x64/0xe8 [ 56.443366][ T5236] kmem_cache_alloc+0x94/0x3d4 [ 56.444165][ T5236] start_transaction+0x4d0/0x13ec [ 56.444991][ T5236] btrfs_attach_transaction_barrier+0x30/0xac [ 56.445898][ T5236] btrfs_sync_fs+0x13c/0xb24 [ 56.446624][ T5236] sync_filesystem+0x1a0/0x218 [ 56.447349][ T5236] btrfs_remount+0x198/0x12b0 [ 56.448075][ T5236] legacy_reconfigure+0xf8/0x110 [ 56.448830][ T5236] reconfigure_super+0x1d4/0x6f4 [ 56.449598][ T5236] path_mount+0xc88/0x1008 [ 56.450296][ T5236] __arm64_sys_mount+0x514/0x5f0 [ 56.451044][ T5236] invoke_syscall+0x98/0x2b0 [ 56.451739][ T5236] el0_svc_common+0x138/0x258 [ 56.452463][ T5236] do_el0_svc+0x58/0x13c [ 56.453089][ T5236] el0_svc+0x78/0x1d0 [ 56.453678][ T5236] el0t_64_sync_handler+0xcc/0xe4 [ 56.454506][ T5236] el0t_64_sync+0x1a0/0x1a4 [ 56.641477][ T5257] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5257) [ 56.659075][ T5257] FAULT_INJECTION: forcing a failure. [ 56.659075][ T5257] name failslab, interval 1, probability 0, space 0, times 0 [ 56.661473][ T5257] CPU: 1 PID: 5257 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 56.662887][ T5257] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 56.664488][ T5257] Call trace: [ 56.665011][ T5257] dump_backtrace+0x0/0x458 [ 56.665689][ T5257] show_stack+0x2c/0x3c [ 56.666322][ T5257] __dump_stack+0x30/0x40 [ 56.666993][ T5257] dump_stack_lvl+0xf4/0x15c [ 56.667816][ T5257] dump_stack+0x1c/0x5c [ 56.668492][ T5257] should_fail+0x3bc/0x514 [ 56.669190][ T5257] __should_failslab+0xbc/0x10c [ 56.669958][ T5257] should_failslab+0x10/0x28 [ 56.670697][ T5257] slab_pre_alloc_hook+0x64/0xe8 [ 56.671443][ T5257] kmem_cache_alloc+0x94/0x3d4 [ 56.672188][ T5257] btrfs_alloc_path+0x5c/0x68 [ 56.672891][ T5257] __btrfs_run_delayed_refs+0xe70/0x348c [ 56.673756][ T5257] btrfs_run_delayed_refs+0x124/0x458 [ 56.674666][ T5257] btrfs_commit_transaction+0x1e0/0x3078 [ 56.675566][ T5257] btrfs_sync_fs+0x628/0xb24 [ 56.676259][ T5257] sync_filesystem+0x1a0/0x218 [ 56.676983][ T5257] btrfs_remount+0x198/0x12b0 [ 56.677665][ T5257] legacy_reconfigure+0xf8/0x110 [ 56.678385][ T5257] reconfigure_super+0x1d4/0x6f4 [ 56.679101][ T5257] path_mount+0xc88/0x1008 [ 56.679710][ T5257] __arm64_sys_mount+0x514/0x5f0 [ 56.680514][ T5257] invoke_syscall+0x98/0x2b0 [ 56.681317][ T5257] el0_svc_common+0x138/0x258 [ 56.682123][ T5257] do_el0_svc+0x58/0x13c [ 56.682819][ T5257] el0_svc+0x78/0x1d0 [ 56.683466][ T5257] el0t_64_sync_handler+0xcc/0xe4 [ 56.684284][ T5257] el0t_64_sync+0x1a0/0x1a4 [ 56.686804][ T5257] BTRFS error (device loop0): failed to run delayed ref for logical 5246976 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 56.688843][ T5257] ------------[ cut here ]------------ [ 56.690182][ T5257] WARNING: CPU: 1 PID: 5257 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 56.691818][ T5257] Modules linked in: [ 56.692430][ T5257] CPU: 1 PID: 5257 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 56.693831][ T5257] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 56.695361][ T5257] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 56.696665][ T5257] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 56.697560][ T5257] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 56.698436][ T5257] sp : ffff800021fb7530 [ 56.699130][ T5257] x29: ffff800021fb7540 x28: ffff0000de382000 x27: dfff800000000000 [ 56.700413][ T5257] x26: ffff0000de382024 x25: ffff0000d0d44000 x24: 1fffe0001b97ad97 [ 56.701640][ T5257] x23: 1fffe0001b97ad97 x22: ffff0000dcbd6cb8 x21: 00000000fffffff4 [ 56.702827][ T5257] x20: 0000000000000051 x19: ffff0000dcbd6c60 x18: 0000000000000001 [ 56.704158][ T5257] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 56.705475][ T5257] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 56.706741][ T5257] x11: 0000000000000000 x10: 0000000000000000 x9 : 1ad1c56f9ebd4600 [ 56.708005][ T5257] x8 : 1ad1c56f9ebd4600 x7 : 0000000000000001 x6 : 0000000000000001 [ 56.709251][ T5257] x5 : ffff800021fb6e38 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 56.710515][ T5257] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 56.711844][ T5257] Call trace: [ 56.712417][ T5257] btrfs_run_delayed_refs+0x3e4/0x458 [ 56.713289][ T5257] btrfs_commit_transaction+0x1e0/0x3078 [ 56.714236][ T5257] btrfs_sync_fs+0x628/0xb24 [ 56.714990][ T5257] sync_filesystem+0x1a0/0x218 [ 56.715767][ T5257] btrfs_remount+0x198/0x12b0 [ 56.716443][ T5257] legacy_reconfigure+0xf8/0x110 [ 56.717286][ T5257] reconfigure_super+0x1d4/0x6f4 [ 56.718103][ T5257] path_mount+0xc88/0x1008 [ 56.718802][ T5257] __arm64_sys_mount+0x514/0x5f0 [ 56.719556][ T5257] invoke_syscall+0x98/0x2b0 [ 56.720279][ T5257] el0_svc_common+0x138/0x258 [ 56.721093][ T5257] do_el0_svc+0x58/0x13c [ 56.721778][ T5257] el0_svc+0x78/0x1d0 [ 56.722427][ T5257] el0t_64_sync_handler+0xcc/0xe4 [ 56.723223][ T5257] el0t_64_sync+0x1a0/0x1a4 [ 56.723952][ T5257] irq event stamp: 79602 [ 56.724636][ T5257] hardirqs last enabled at (79601): [] __up_console_sem+0xb4/0xfc [ 56.726095][ T5257] hardirqs last disabled at (79602): [] el1_dbg+0x24/0x80 [ 56.727377][ T5257] softirqs last enabled at (79590): [] handle_softirqs+0xa40/0xbe4 [ 56.728763][ T5257] softirqs last disabled at (79535): [] __irq_exit_rcu+0x240/0x43c [ 56.730113][ T5257] ---[ end trace 4d46d6dd039cd443 ]--- [ 56.731733][ T5257] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 56.733704][ T5257] BTRFS error (device loop0): Remounting read-write after error is not allowed [ 56.914149][ T5278] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5278) [ 56.930871][ T5278] FAULT_INJECTION: forcing a failure. [ 56.930871][ T5278] name failslab, interval 1, probability 0, space 0, times 0 [ 56.932931][ T5278] CPU: 0 PID: 5278 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 56.934445][ T5278] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 56.935977][ T5278] Call trace: [ 56.936506][ T5278] dump_backtrace+0x0/0x458 [ 56.937156][ T5278] show_stack+0x2c/0x3c [ 56.937781][ T5278] __dump_stack+0x30/0x40 [ 56.938428][ T5278] dump_stack_lvl+0xf4/0x15c [ 56.939108][ T5278] dump_stack+0x1c/0x5c [ 56.939747][ T5278] should_fail+0x3bc/0x514 [ 56.940366][ T5278] __should_failslab+0xbc/0x10c [ 56.941029][ T5278] should_failslab+0x10/0x28 [ 56.941645][ T5278] slab_pre_alloc_hook+0x64/0xe8 [ 56.942356][ T5278] kmem_cache_alloc+0x94/0x3d4 [ 56.943042][ T5278] btrfs_alloc_path+0x5c/0x68 [ 56.943666][ T5278] __btrfs_run_delayed_refs+0xe70/0x348c [ 56.944540][ T5278] btrfs_run_delayed_refs+0x124/0x458 [ 56.945266][ T5278] btrfs_commit_transaction+0x1e0/0x3078 [ 56.946093][ T5278] btrfs_sync_fs+0x628/0xb24 [ 56.946844][ T5278] sync_filesystem+0x1a0/0x218 [ 56.947615][ T5278] btrfs_remount+0x198/0x12b0 [ 56.948336][ T5278] legacy_reconfigure+0xf8/0x110 [ 56.949037][ T5278] reconfigure_super+0x1d4/0x6f4 [ 56.949739][ T5278] path_mount+0xc88/0x1008 [ 56.950410][ T5278] __arm64_sys_mount+0x514/0x5f0 [ 56.951222][ T5278] invoke_syscall+0x98/0x2b0 [ 56.952005][ T5278] el0_svc_common+0x138/0x258 [ 56.952809][ T5278] do_el0_svc+0x58/0x13c [ 56.953479][ T5278] el0_svc+0x78/0x1d0 [ 56.954090][ T5278] el0t_64_sync_handler+0xcc/0xe4 [ 56.954907][ T5278] el0t_64_sync+0x1a0/0x1a4 [ 56.956490][ T5278] BTRFS error (device loop0): failed to run delayed ref for logical 5246976 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 56.958305][ T5278] ------------[ cut here ]------------ [ 56.959230][ T5278] WARNING: CPU: 0 PID: 5278 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 56.960738][ T5278] Modules linked in: [ 56.961374][ T5278] CPU: 0 PID: 5278 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 56.962769][ T5278] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 56.964307][ T5278] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 56.965556][ T5278] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 56.966516][ T5278] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 56.967398][ T5278] sp : ffff800022097530 [ 56.968068][ T5278] x29: ffff800022097540 x28: ffff0000de381000 x27: dfff800000000000 [ 56.969315][ T5278] x26: ffff0000de381024 x25: ffff0000de3b8000 x24: 1fffe0001bc88929 [ 56.970531][ T5278] x23: 1fffe0001bc88929 x22: ffff0000de444948 x21: 00000000fffffff4 [ 56.971700][ T5278] x20: 0000000000000051 x19: ffff0000de4448f0 x18: 0000000000000001 [ 56.972978][ T5278] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 56.974265][ T5278] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 56.975516][ T5278] x11: 0000000000000000 x10: 0000000000000000 x9 : f8796cfc2fee5e00 [ 56.976754][ T5278] x8 : f8796cfc2fee5e00 x7 : 0000000000000001 x6 : 0000000000000001 [ 56.978005][ T5278] x5 : ffff800022096e38 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 56.979161][ T5278] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 56.980371][ T5278] Call trace: [ 56.980896][ T5278] btrfs_run_delayed_refs+0x3e4/0x458 [ 56.981682][ T5278] btrfs_commit_transaction+0x1e0/0x3078 [ 56.982560][ T5278] btrfs_sync_fs+0x628/0xb24 [ 56.983265][ T5278] sync_filesystem+0x1a0/0x218 [ 56.984017][ T5278] btrfs_remount+0x198/0x12b0 [ 56.984752][ T5278] legacy_reconfigure+0xf8/0x110 [ 56.985471][ T5278] reconfigure_super+0x1d4/0x6f4 [ 56.986153][ T5278] path_mount+0xc88/0x1008 [ 56.986766][ T5278] __arm64_sys_mount+0x514/0x5f0 [ 56.987444][ T5278] invoke_syscall+0x98/0x2b0 [ 56.988085][ T5278] el0_svc_common+0x138/0x258 [ 56.988759][ T5278] do_el0_svc+0x58/0x13c [ 56.989329][ T5278] el0_svc+0x78/0x1d0 [ 56.989902][ T5278] el0t_64_sync_handler+0xcc/0xe4 [ 56.990595][ T5278] el0t_64_sync+0x1a0/0x1a4 [ 56.991235][ T5278] irq event stamp: 79510 [ 56.991837][ T5278] hardirqs last enabled at (79509): [] __up_console_sem+0xb4/0xfc [ 56.993205][ T5278] hardirqs last disabled at (79510): [] el1_dbg+0x24/0x80 [ 56.994412][ T5278] softirqs last enabled at (79472): [] handle_softirqs+0xa40/0xbe4 [ 56.995740][ T5278] softirqs last disabled at (79451): [] __irq_exit_rcu+0x240/0x43c [ 56.997034][ T5278] ---[ end trace 4d46d6dd039cd444 ]--- [ 56.998718][ T5278] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 57.000304][ T5278] BTRFS error (device loop0): Remounting read-write after error is not allowed [ 57.188516][ T5299] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5299) [ 57.211217][ T5299] FAULT_INJECTION: forcing a failure. [ 57.211217][ T5299] name failslab, interval 1, probability 0, space 0, times 0 [ 57.213335][ T5299] CPU: 0 PID: 5299 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 57.214690][ T5299] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 57.216301][ T5299] Call trace: [ 57.216816][ T5299] dump_backtrace+0x0/0x458 [ 57.217549][ T5299] show_stack+0x2c/0x3c [ 57.218237][ T5299] __dump_stack+0x30/0x40 [ 57.218949][ T5299] dump_stack_lvl+0xf4/0x15c [ 57.219653][ T5299] dump_stack+0x1c/0x5c [ 57.220320][ T5299] should_fail+0x3bc/0x514 [ 57.221030][ T5299] __should_failslab+0xbc/0x10c [ 57.221831][ T5299] should_failslab+0x10/0x28 [ 57.222568][ T5299] slab_pre_alloc_hook+0x64/0xe8 [ 57.223357][ T5299] kmem_cache_alloc+0x94/0x3d4 [ 57.224108][ T5299] btrfs_alloc_path+0x5c/0x68 [ 57.224845][ T5299] __btrfs_free_extent+0x1a8/0x1abc [ 57.225606][ T5299] __btrfs_run_delayed_refs+0xbf0/0x348c [ 57.226404][ T5299] btrfs_run_delayed_refs+0x124/0x458 [ 57.227162][ T5299] btrfs_commit_transaction+0x1e0/0x3078 [ 57.228023][ T5299] btrfs_sync_fs+0x628/0xb24 [ 57.228680][ T5299] sync_filesystem+0x1a0/0x218 [ 57.229513][ T5299] btrfs_remount+0x198/0x12b0 [ 57.230269][ T5299] legacy_reconfigure+0xf8/0x110 [ 57.231019][ T5299] reconfigure_super+0x1d4/0x6f4 [ 57.231818][ T5299] path_mount+0xc88/0x1008 [ 57.232516][ T5299] __arm64_sys_mount+0x514/0x5f0 [ 57.233258][ T5299] invoke_syscall+0x98/0x2b0 [ 57.233977][ T5299] el0_svc_common+0x138/0x258 [ 57.234714][ T5299] do_el0_svc+0x58/0x13c [ 57.235361][ T5299] el0_svc+0x78/0x1d0 [ 57.235937][ T5299] el0t_64_sync_handler+0xcc/0xe4 [ 57.236690][ T5299] el0t_64_sync+0x1a0/0x1a4 [ 57.237779][ T5299] BTRFS error (device loop0): failed to run delayed ref for logical 5255168 num_bytes 4096 type 176 action 2 ref_mod 1: -12 [ 57.240428][ T5299] ------------[ cut here ]------------ [ 57.241289][ T5299] WARNING: CPU: 0 PID: 5299 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 57.242724][ T5299] Modules linked in: [ 57.243332][ T5299] CPU: 0 PID: 5299 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 57.244716][ T5299] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 57.246231][ T5299] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 57.247502][ T5299] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 57.248365][ T5299] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 57.249301][ T5299] sp : ffff800022097530 [ 57.250002][ T5299] x29: ffff800022097540 x28: ffff0000de203000 x27: dfff800000000000 [ 57.251255][ T5299] x26: ffff0000de203024 x25: ffff0000d91e4000 x24: 1fffe0001bc88955 [ 57.252470][ T5299] x23: 1fffe0001bc88955 x22: ffff0000de444aa8 x21: 00000000fffffff4 [ 57.253600][ T5299] x20: 0000000000000051 x19: ffff0000de444a50 x18: 0000000000000001 [ 57.254710][ T5299] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 57.255884][ T5299] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 57.257034][ T5299] x11: 0000000000000000 x10: 0000000000000000 x9 : 7b83337992661000 [ 57.258372][ T5299] x8 : 7b83337992661000 x7 : 0000000000000001 x6 : 0000000000000001 [ 57.259648][ T5299] x5 : ffff800022096e38 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 57.260874][ T5299] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 57.261980][ T5299] Call trace: [ 57.262441][ T5299] btrfs_run_delayed_refs+0x3e4/0x458 [ 57.263150][ T5299] btrfs_commit_transaction+0x1e0/0x3078 [ 57.263944][ T5299] btrfs_sync_fs+0x628/0xb24 [ 57.264571][ T5299] sync_filesystem+0x1a0/0x218 [ 57.265212][ T5299] btrfs_remount+0x198/0x12b0 [ 57.265873][ T5299] legacy_reconfigure+0xf8/0x110 [ 57.266572][ T5299] reconfigure_super+0x1d4/0x6f4 [ 57.267271][ T5299] path_mount+0xc88/0x1008 [ 57.267970][ T5299] __arm64_sys_mount+0x514/0x5f0 [ 57.268793][ T5299] invoke_syscall+0x98/0x2b0 [ 57.269559][ T5299] el0_svc_common+0x138/0x258 [ 57.270311][ T5299] do_el0_svc+0x58/0x13c [ 57.270988][ T5299] el0_svc+0x78/0x1d0 [ 57.271650][ T5299] el0t_64_sync_handler+0xcc/0xe4 [ 57.272449][ T5299] el0t_64_sync+0x1a0/0x1a4 [ 57.273178][ T5299] irq event stamp: 79230 [ 57.273867][ T5299] hardirqs last enabled at (79229): [] __up_console_sem+0xb4/0xfc [ 57.275375][ T5299] hardirqs last disabled at (79230): [] el1_dbg+0x24/0x80 [ 57.276831][ T5299] softirqs last enabled at (79194): [] handle_softirqs+0xa40/0xbe4 [ 57.278414][ T5299] softirqs last disabled at (79165): [] __irq_exit_rcu+0x240/0x43c [ 57.279835][ T5299] ---[ end trace 4d46d6dd039cd445 ]--- [ 57.281413][ T5299] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 57.282903][ T5299] BTRFS error (device loop0): Remounting read-write after error is not allowed [ 57.483468][ T5320] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5320) [ 57.502833][ T5320] FAULT_INJECTION: forcing a failure. [ 57.502833][ T5320] name failslab, interval 1, probability 0, space 0, times 0 [ 57.504999][ T5320] CPU: 0 PID: 5320 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 57.506352][ T5320] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 57.507927][ T5320] Call trace: [ 57.508429][ T5320] dump_backtrace+0x0/0x458 [ 57.509142][ T5320] show_stack+0x2c/0x3c [ 57.509775][ T5320] __dump_stack+0x30/0x40 [ 57.510489][ T5320] dump_stack_lvl+0xf4/0x15c [ 57.511172][ T5320] dump_stack+0x1c/0x5c [ 57.511821][ T5320] should_fail+0x3bc/0x514 [ 57.512482][ T5320] __should_failslab+0xbc/0x10c [ 57.513213][ T5320] should_failslab+0x10/0x28 [ 57.513839][ T5320] slab_pre_alloc_hook+0x64/0xe8 [ 57.514622][ T5320] kmem_cache_alloc_trace+0x98/0x3ec [ 57.515484][ T5320] bdi_split_work_to_wbs+0x3f4/0x77c [ 57.516326][ T5320] sync_inodes_sb+0x188/0x844 [ 57.517051][ T5320] sync_filesystem+0x160/0x218 [ 57.517715][ T5320] btrfs_remount+0x198/0x12b0 [ 57.518475][ T5320] legacy_reconfigure+0xf8/0x110 [ 57.519215][ T5320] reconfigure_super+0x1d4/0x6f4 [ 57.519967][ T5320] path_mount+0xc88/0x1008 [ 57.520575][ T5320] __arm64_sys_mount+0x514/0x5f0 [ 57.521230][ T5320] invoke_syscall+0x98/0x2b0 [ 57.521848][ T5320] el0_svc_common+0x138/0x258 [ 57.522483][ T5320] do_el0_svc+0x58/0x13c [ 57.523034][ T5320] el0_svc+0x78/0x1d0 [ 57.523611][ T5320] el0t_64_sync_handler+0xcc/0xe4 [ 57.524289][ T5320] el0t_64_sync+0x1a0/0x1a4 1970/01/01 00:00:57 executed programs: 36 [ 57.697902][ T5341] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5341) [ 57.723717][ T5341] FAULT_INJECTION: forcing a failure. [ 57.723717][ T5341] name failslab, interval 1, probability 0, space 0, times 0 [ 57.725860][ T5341] CPU: 0 PID: 5341 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 57.727221][ T5341] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 57.728605][ T5341] Call trace: [ 57.729046][ T5341] dump_backtrace+0x0/0x458 [ 57.729742][ T5341] show_stack+0x2c/0x3c [ 57.730367][ T5341] __dump_stack+0x30/0x40 [ 57.731067][ T5341] dump_stack_lvl+0xf4/0x15c [ 57.731733][ T5341] dump_stack+0x1c/0x5c [ 57.732320][ T5341] should_fail+0x3bc/0x514 [ 57.732943][ T5341] __should_failslab+0xbc/0x10c [ 57.733622][ T5341] should_failslab+0x10/0x28 [ 57.734263][ T5341] slab_pre_alloc_hook+0x64/0xe8 [ 57.734943][ T5341] kmem_cache_alloc_trace+0x98/0x3ec [ 57.735664][ T5341] bdi_split_work_to_wbs+0x3f4/0x77c [ 57.736428][ T5341] sync_inodes_sb+0x188/0x844 [ 57.737105][ T5341] sync_filesystem+0x160/0x218 [ 57.737815][ T5341] btrfs_remount+0x198/0x12b0 [ 57.738513][ T5341] legacy_reconfigure+0xf8/0x110 [ 57.739220][ T5341] reconfigure_super+0x1d4/0x6f4 [ 57.739987][ T5341] path_mount+0xc88/0x1008 [ 57.740656][ T5341] __arm64_sys_mount+0x514/0x5f0 [ 57.741398][ T5341] invoke_syscall+0x98/0x2b0 [ 57.742121][ T5341] el0_svc_common+0x138/0x258 [ 57.742785][ T5341] do_el0_svc+0x58/0x13c [ 57.743460][ T5341] el0_svc+0x78/0x1d0 [ 57.744020][ T5341] el0t_64_sync_handler+0xcc/0xe4 [ 57.744746][ T5341] el0t_64_sync+0x1a0/0x1a4 [ 57.932288][ T5362] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5362) [ 57.960264][ T5362] FAULT_INJECTION: forcing a failure. [ 57.960264][ T5362] name failslab, interval 1, probability 0, space 0, times 0 [ 57.962249][ T5362] CPU: 1 PID: 5362 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 57.963635][ T5362] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 57.965117][ T5362] Call trace: [ 57.965605][ T5362] dump_backtrace+0x0/0x458 [ 57.966234][ T5362] show_stack+0x2c/0x3c [ 57.966816][ T5362] __dump_stack+0x30/0x40 [ 57.967431][ T5362] dump_stack_lvl+0xf4/0x15c [ 57.968163][ T5362] dump_stack+0x1c/0x5c [ 57.968858][ T5362] should_fail+0x3bc/0x514 [ 57.969606][ T5362] __should_failslab+0xbc/0x10c [ 57.970371][ T5362] should_failslab+0x10/0x28 [ 57.971112][ T5362] slab_pre_alloc_hook+0x64/0xe8 [ 57.971925][ T5362] kmem_cache_alloc+0x94/0x3d4 [ 57.972666][ T5362] btrfs_alloc_path+0x5c/0x68 [ 57.973358][ T5362] __btrfs_run_delayed_refs+0xe70/0x348c [ 57.974147][ T5362] btrfs_run_delayed_refs+0x124/0x458 [ 57.974910][ T5362] btrfs_commit_transaction+0x1e0/0x3078 [ 57.975762][ T5362] btrfs_sync_fs+0x628/0xb24 [ 57.976462][ T5362] sync_filesystem+0x1a0/0x218 [ 57.977163][ T5362] btrfs_remount+0x198/0x12b0 [ 57.977930][ T5362] legacy_reconfigure+0xf8/0x110 [ 57.978773][ T5362] reconfigure_super+0x1d4/0x6f4 [ 57.979588][ T5362] path_mount+0xc88/0x1008 [ 57.980232][ T5362] __arm64_sys_mount+0x514/0x5f0 [ 57.981041][ T5362] invoke_syscall+0x98/0x2b0 [ 57.981842][ T5362] el0_svc_common+0x138/0x258 [ 57.982597][ T5362] do_el0_svc+0x58/0x13c [ 57.983267][ T5362] el0_svc+0x78/0x1d0 [ 57.983916][ T5362] el0t_64_sync_handler+0xcc/0xe4 [ 57.984705][ T5362] el0t_64_sync+0x1a0/0x1a4 [ 57.988635][ T5362] BTRFS error (device loop0): failed to run delayed ref for logical 5246976 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 57.990789][ T5362] ------------[ cut here ]------------ [ 57.991679][ T5362] WARNING: CPU: 1 PID: 5362 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 57.993314][ T5362] Modules linked in: [ 57.993962][ T5362] CPU: 1 PID: 5362 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 57.995441][ T5362] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 57.997003][ T5362] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 57.998262][ T5362] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 57.999239][ T5362] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 58.000152][ T5362] sp : ffff8000225a7530 [ 58.000819][ T5362] x29: ffff8000225a7540 x28: ffff0000c835f000 x27: dfff800000000000 [ 58.002087][ T5362] x26: ffff0000c835f024 x25: ffff0000d91e4000 x24: 1fffe0001b977f6b [ 58.003363][ T5362] x23: 1fffe0001b977f6b x22: ffff0000dcbbfb58 x21: 00000000fffffff4 [ 58.004703][ T5362] x20: 0000000000000051 x19: ffff0000dcbbfb00 x18: 0000000000000001 [ 58.006049][ T5362] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 58.007378][ T5362] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 58.008777][ T5362] x11: 0000000000000000 x10: 0000000000000000 x9 : be72037af7e77500 [ 58.010114][ T5362] x8 : be72037af7e77500 x7 : 0000000000000001 x6 : 0000000000000001 [ 58.011406][ T5362] x5 : ffff8000225a6e38 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 58.012607][ T5362] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 58.013841][ T5362] Call trace: [ 58.014374][ T5362] btrfs_run_delayed_refs+0x3e4/0x458 [ 58.015227][ T5362] btrfs_commit_transaction+0x1e0/0x3078 [ 58.016089][ T5362] btrfs_sync_fs+0x628/0xb24 [ 58.016750][ T5362] sync_filesystem+0x1a0/0x218 [ 58.017402][ T5362] btrfs_remount+0x198/0x12b0 [ 58.018112][ T5362] legacy_reconfigure+0xf8/0x110 [ 58.018981][ T5362] reconfigure_super+0x1d4/0x6f4 [ 58.019824][ T5362] path_mount+0xc88/0x1008 [ 58.020553][ T5362] __arm64_sys_mount+0x514/0x5f0 [ 58.021343][ T5362] invoke_syscall+0x98/0x2b0 [ 58.022075][ T5362] el0_svc_common+0x138/0x258 [ 58.022817][ T5362] do_el0_svc+0x58/0x13c [ 58.023519][ T5362] el0_svc+0x78/0x1d0 [ 58.024108][ T5362] el0t_64_sync_handler+0xcc/0xe4 [ 58.024906][ T5362] el0t_64_sync+0x1a0/0x1a4 [ 58.025600][ T5362] irq event stamp: 79798 [ 58.026237][ T5362] hardirqs last enabled at (79797): [] __up_console_sem+0xb4/0xfc [ 58.027728][ T5362] hardirqs last disabled at (79798): [] el1_dbg+0x24/0x80 [ 58.029040][ T5362] softirqs last enabled at (79774): [] handle_softirqs+0xa40/0xbe4 [ 58.030553][ T5362] softirqs last disabled at (79743): [] __irq_exit_rcu+0x240/0x43c [ 58.031989][ T5362] ---[ end trace 4d46d6dd039cd446 ]--- [ 58.033562][ T5362] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 58.035211][ T5362] BTRFS error (device loop0): Remounting read-write after error is not allowed [ 58.198327][ T5383] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5383) [ 58.214735][ T5383] FAULT_INJECTION: forcing a failure. [ 58.214735][ T5383] name failslab, interval 1, probability 0, space 0, times 0 [ 58.216750][ T5383] CPU: 0 PID: 5383 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 58.218102][ T5383] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 58.219697][ T5383] Call trace: [ 58.220223][ T5383] dump_backtrace+0x0/0x458 [ 58.220934][ T5383] show_stack+0x2c/0x3c [ 58.221592][ T5383] __dump_stack+0x30/0x40 [ 58.222295][ T5383] dump_stack_lvl+0xf4/0x15c [ 58.223057][ T5383] dump_stack+0x1c/0x5c [ 58.223760][ T5383] should_fail+0x3bc/0x514 [ 58.224471][ T5383] __should_failslab+0xbc/0x10c [ 58.225201][ T5383] should_failslab+0x10/0x28 [ 58.225975][ T5383] slab_pre_alloc_hook+0x64/0xe8 [ 58.226755][ T5383] kmem_cache_alloc+0x94/0x3d4 [ 58.227523][ T5383] btrfs_alloc_path+0x5c/0x68 [ 58.228289][ T5383] __btrfs_free_extent+0x1a8/0x1abc [ 58.229115][ T5383] __btrfs_run_delayed_refs+0xbf0/0x348c [ 58.229970][ T5383] btrfs_run_delayed_refs+0x124/0x458 [ 58.230809][ T5383] btrfs_commit_transaction+0x1e0/0x3078 [ 58.231748][ T5383] btrfs_sync_fs+0x628/0xb24 [ 58.232491][ T5383] sync_filesystem+0x1a0/0x218 [ 58.233312][ T5383] btrfs_remount+0x198/0x12b0 [ 58.234031][ T5383] legacy_reconfigure+0xf8/0x110 [ 58.234840][ T5383] reconfigure_super+0x1d4/0x6f4 [ 58.235597][ T5383] path_mount+0xc88/0x1008 [ 58.236281][ T5383] __arm64_sys_mount+0x514/0x5f0 [ 58.237095][ T5383] invoke_syscall+0x98/0x2b0 [ 58.237838][ T5383] el0_svc_common+0x138/0x258 [ 58.238613][ T5383] do_el0_svc+0x58/0x13c [ 58.239252][ T5383] el0_svc+0x78/0x1d0 [ 58.239917][ T5383] el0t_64_sync_handler+0xcc/0xe4 [ 58.240753][ T5383] el0t_64_sync+0x1a0/0x1a4 [ 58.241622][ T5383] BTRFS error (device loop0): failed to run delayed ref for logical 5255168 num_bytes 4096 type 176 action 2 ref_mod 1: -12 [ 58.243958][ T5383] ------------[ cut here ]------------ [ 58.245277][ T5383] WARNING: CPU: 0 PID: 5383 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 58.246821][ T5383] Modules linked in: [ 58.247415][ T5383] CPU: 0 PID: 5383 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 58.248777][ T5383] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 58.250415][ T5383] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 58.251675][ T5383] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 58.252552][ T5383] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 58.253471][ T5383] sp : ffff8000224b7530 [ 58.254110][ T5383] x29: ffff8000224b7540 x28: ffff0000d943e000 x27: dfff800000000000 [ 58.255301][ T5383] x26: ffff0000d943e024 x25: ffff0000d91e4000 x24: 1fffe0001bcb4581 [ 58.256518][ T5383] x23: 1fffe0001bcb4581 x22: ffff0000de5a2c08 x21: 00000000fffffff4 [ 58.257802][ T5383] x20: 0000000000000051 x19: ffff0000de5a2bb0 x18: 0000000000000001 [ 58.259007][ T5383] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 58.260214][ T5383] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 58.261493][ T5383] x11: 0000000000000000 x10: 0000000000000000 x9 : d85841fa6e82e600 [ 58.262852][ T5383] x8 : d85841fa6e82e600 x7 : 0000000000000001 x6 : 0000000000000001 [ 58.264141][ T5383] x5 : ffff8000224b6e38 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 58.265363][ T5383] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 58.266689][ T5383] Call trace: [ 58.267193][ T5383] btrfs_run_delayed_refs+0x3e4/0x458 [ 58.268005][ T5383] btrfs_commit_transaction+0x1e0/0x3078 [ 58.268902][ T5383] btrfs_sync_fs+0x628/0xb24 [ 58.269629][ T5383] sync_filesystem+0x1a0/0x218 [ 58.270389][ T5383] btrfs_remount+0x198/0x12b0 [ 58.271197][ T5383] legacy_reconfigure+0xf8/0x110 [ 58.271965][ T5383] reconfigure_super+0x1d4/0x6f4 [ 58.272743][ T5383] path_mount+0xc88/0x1008 [ 58.273431][ T5383] __arm64_sys_mount+0x514/0x5f0 [ 58.274197][ T5383] invoke_syscall+0x98/0x2b0 [ 58.274931][ T5383] el0_svc_common+0x138/0x258 [ 58.275681][ T5383] do_el0_svc+0x58/0x13c [ 58.276329][ T5383] el0_svc+0x78/0x1d0 [ 58.276952][ T5383] el0t_64_sync_handler+0xcc/0xe4 [ 58.277740][ T5383] el0t_64_sync+0x1a0/0x1a4 [ 58.278463][ T5383] irq event stamp: 79022 [ 58.279154][ T5383] hardirqs last enabled at (79021): [] __up_console_sem+0xb4/0xfc [ 58.280570][ T5383] hardirqs last disabled at (79022): [] el1_dbg+0x24/0x80 [ 58.281895][ T5383] softirqs last enabled at (78986): [] handle_softirqs+0xa40/0xbe4 [ 58.283392][ T5383] softirqs last disabled at (78973): [] __irq_exit_rcu+0x240/0x43c [ 58.284868][ T5383] ---[ end trace 4d46d6dd039cd447 ]--- [ 58.285810][ T5383] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 58.287322][ T5383] BTRFS error (device loop0): Remounting read-write after error is not allowed [ 58.470135][ T5404] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5404) [ 58.489245][ T5404] FAULT_INJECTION: forcing a failure. [ 58.489245][ T5404] name failslab, interval 1, probability 0, space 0, times 0 [ 58.491644][ T5404] CPU: 1 PID: 5404 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 58.493191][ T5404] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 58.494809][ T5404] Call trace: [ 58.495296][ T5404] dump_backtrace+0x0/0x458 [ 58.496066][ T5404] show_stack+0x2c/0x3c [ 58.496818][ T5404] __dump_stack+0x30/0x40 [ 58.497518][ T5404] dump_stack_lvl+0xf4/0x15c [ 58.498319][ T5404] dump_stack+0x1c/0x5c [ 58.498991][ T5404] should_fail+0x3bc/0x514 [ 58.499702][ T5404] __should_failslab+0xbc/0x10c [ 58.500466][ T5404] should_failslab+0x10/0x28 [ 58.501327][ T5404] slab_pre_alloc_hook+0x64/0xe8 [ 58.502167][ T5404] kmem_cache_alloc+0x94/0x3d4 [ 58.502945][ T5404] btrfs_alloc_path+0x5c/0x68 [ 58.503707][ T5404] __btrfs_run_delayed_refs+0xe70/0x348c [ 58.504617][ T5404] btrfs_run_delayed_refs+0x124/0x458 [ 58.505507][ T5404] btrfs_commit_transaction+0x1e0/0x3078 [ 58.506391][ T5404] btrfs_sync_fs+0x628/0xb24 [ 58.507107][ T5404] sync_filesystem+0x1a0/0x218 [ 58.507890][ T5404] btrfs_remount+0x198/0x12b0 [ 58.508548][ T5404] legacy_reconfigure+0xf8/0x110 [ 58.509380][ T5404] reconfigure_super+0x1d4/0x6f4 [ 58.510276][ T5404] path_mount+0xc88/0x1008 [ 58.511036][ T5404] __arm64_sys_mount+0x514/0x5f0 [ 58.511878][ T5404] invoke_syscall+0x98/0x2b0 [ 58.512625][ T5404] el0_svc_common+0x138/0x258 [ 58.513412][ T5404] do_el0_svc+0x58/0x13c [ 58.514091][ T5404] el0_svc+0x78/0x1d0 [ 58.514720][ T5404] el0t_64_sync_handler+0xcc/0xe4 [ 58.515584][ T5404] el0t_64_sync+0x1a0/0x1a4 [ 58.517942][ T5404] BTRFS error (device loop0): failed to run delayed ref for logical 5251072 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 58.520113][ T5404] ------------[ cut here ]------------ [ 58.521041][ T5404] WARNING: CPU: 1 PID: 5404 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 58.522482][ T5404] Modules linked in: [ 58.523123][ T5404] CPU: 1 PID: 5404 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 58.524583][ T5404] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 58.526056][ T5404] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 58.527224][ T5404] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 58.528016][ T5404] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 58.528806][ T5404] sp : ffff8000224b7530 [ 58.529384][ T5404] x29: ffff8000224b7540 x28: ffff0000c835b000 x27: dfff800000000000 [ 58.530555][ T5404] x26: ffff0000c835b024 x25: ffff0000d91e4000 x24: 1fffe0001b977f29 [ 58.531729][ T5404] x23: 1fffe0001b977f29 x22: ffff0000dcbbf948 x21: 00000000fffffff4 [ 58.532923][ T5404] x20: 0000000000000051 x19: ffff0000dcbbf8f0 x18: 0000000000000001 [ 58.534144][ T5404] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 58.535499][ T5404] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 58.536852][ T5404] x11: 0000000000000000 x10: 0000000000000000 x9 : d30c5f70a5e51400 [ 58.538163][ T5404] x8 : d30c5f70a5e51400 x7 : 0000000000000001 x6 : 0000000000000001 [ 58.539468][ T5404] x5 : ffff8000224b6e38 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 58.540856][ T5404] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 58.542066][ T5404] Call trace: [ 58.542594][ T5404] btrfs_run_delayed_refs+0x3e4/0x458 [ 58.543388][ T5404] btrfs_commit_transaction+0x1e0/0x3078 [ 58.544304][ T5404] btrfs_sync_fs+0x628/0xb24 [ 58.545122][ T5404] sync_filesystem+0x1a0/0x218 [ 58.545940][ T5404] btrfs_remount+0x198/0x12b0 [ 58.546618][ T5404] legacy_reconfigure+0xf8/0x110 [ 58.547442][ T5404] reconfigure_super+0x1d4/0x6f4 [ 58.548222][ T5404] path_mount+0xc88/0x1008 [ 58.548919][ T5404] __arm64_sys_mount+0x514/0x5f0 [ 58.549681][ T5404] invoke_syscall+0x98/0x2b0 [ 58.550411][ T5404] el0_svc_common+0x138/0x258 [ 58.551156][ T5404] do_el0_svc+0x58/0x13c [ 58.551805][ T5404] el0_svc+0x78/0x1d0 [ 58.552468][ T5404] el0t_64_sync_handler+0xcc/0xe4 [ 58.553246][ T5404] el0t_64_sync+0x1a0/0x1a4 [ 58.553974][ T5404] irq event stamp: 79462 [ 58.554670][ T5404] hardirqs last enabled at (79461): [] __up_console_sem+0xb4/0xfc [ 58.556170][ T5404] hardirqs last disabled at (79462): [] el1_dbg+0x24/0x80 [ 58.557526][ T5404] softirqs last enabled at (79438): [] handle_softirqs+0xa40/0xbe4 [ 58.559117][ T5404] softirqs last disabled at (79405): [] __irq_exit_rcu+0x240/0x43c [ 58.560633][ T5404] ---[ end trace 4d46d6dd039cd448 ]--- [ 58.561933][ T5404] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 58.563535][ T5404] BTRFS error (device loop0): Remounting read-write after error is not allowed [ 58.736631][ T5425] set_capacity_and_notify: 10 callbacks suppressed [ 58.736642][ T5425] loop0: detected capacity change from 0 to 32768 [ 58.743972][ T5425] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5425) [ 58.754039][ T5425] btrfs_printk: 149 callbacks suppressed [ 58.754053][ T5425] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 58.756241][ T5425] BTRFS info (device loop0): enabling auto defrag [ 58.757184][ T5425] BTRFS info (device loop0): enabling disk space caching [ 58.758165][ T5425] BTRFS info (device loop0): disabling tree log [ 58.759096][ T5425] BTRFS info (device loop0): force clearing of disk cache [ 58.760320][ T5425] BTRFS info (device loop0): force zlib compression, level 3 [ 58.761651][ T5425] BTRFS info (device loop0): disabling disk space caching [ 58.762670][ T5425] BTRFS info (device loop0): has skinny extents [ 58.774489][ T5425] BTRFS info (device loop0): enabling ssd optimizations [ 58.776075][ T5425] BTRFS info (device loop0): clearing free space tree [ 58.777225][ T5425] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 58.778776][ T5425] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 58.784743][ T5425] FAULT_INJECTION: forcing a failure. [ 58.784743][ T5425] name failslab, interval 1, probability 0, space 0, times 0 [ 58.786785][ T5425] CPU: 0 PID: 5425 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 58.788113][ T5425] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 58.789739][ T5425] Call trace: [ 58.790252][ T5425] dump_backtrace+0x0/0x458 [ 58.790944][ T5425] show_stack+0x2c/0x3c [ 58.791583][ T5425] __dump_stack+0x30/0x40 [ 58.792290][ T5425] dump_stack_lvl+0xf4/0x15c [ 58.793081][ T5425] dump_stack+0x1c/0x5c [ 58.793743][ T5425] should_fail+0x3bc/0x514 [ 58.794440][ T5425] __should_failslab+0xbc/0x10c [ 58.795197][ T5425] should_failslab+0x10/0x28 [ 58.795960][ T5425] slab_pre_alloc_hook+0x64/0xe8 [ 58.796734][ T5425] kmem_cache_alloc+0x94/0x3d4 [ 58.797498][ T5425] btrfs_alloc_path+0x5c/0x68 [ 58.798231][ T5425] __btrfs_run_delayed_refs+0xe70/0x348c [ 58.799111][ T5425] btrfs_run_delayed_refs+0x124/0x458 [ 58.799926][ T5425] btrfs_commit_transaction+0x1e0/0x3078 [ 58.800727][ T5425] btrfs_sync_fs+0x628/0xb24 [ 58.801358][ T5425] sync_filesystem+0x1a0/0x218 [ 58.802018][ T5425] btrfs_remount+0x198/0x12b0 [ 58.802726][ T5425] legacy_reconfigure+0xf8/0x110 [ 58.803489][ T5425] reconfigure_super+0x1d4/0x6f4 [ 58.804278][ T5425] path_mount+0xc88/0x1008 [ 58.804978][ T5425] __arm64_sys_mount+0x514/0x5f0 [ 58.805702][ T5425] invoke_syscall+0x98/0x2b0 [ 58.806375][ T5425] el0_svc_common+0x138/0x258 [ 58.807057][ T5425] do_el0_svc+0x58/0x13c [ 58.807712][ T5425] el0_svc+0x78/0x1d0 [ 58.808279][ T5425] el0t_64_sync_handler+0xcc/0xe4 [ 58.809005][ T5425] el0t_64_sync+0x1a0/0x1a4 [ 58.810498][ T5425] BTRFS error (device loop0): failed to run delayed ref for logical 5251072 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 58.812614][ T5425] ------------[ cut here ]------------ [ 58.813588][ T5425] WARNING: CPU: 0 PID: 5425 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 58.815163][ T5425] Modules linked in: [ 58.815778][ T5425] CPU: 0 PID: 5425 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 58.817187][ T5425] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 58.818718][ T5425] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 58.819929][ T5425] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 58.820802][ T5425] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 58.821631][ T5425] sp : ffff800022267530 [ 58.822263][ T5425] x29: ffff800022267540 x28: ffff0000d943a000 x27: dfff800000000000 [ 58.823511][ T5425] x26: ffff0000d943a024 x25: ffff0000c0ec4000 x24: 1fffe0001bcb456b [ 58.824702][ T5425] x23: 1fffe0001bcb456b x22: ffff0000de5a2b58 x21: 00000000fffffff4 [ 58.825918][ T5425] x20: 0000000000000051 x19: ffff0000de5a2b00 x18: 0000000000000001 [ 58.827124][ T5425] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 58.828427][ T5425] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 58.829676][ T5425] x11: 0000000000000000 x10: 0000000000000000 x9 : 354cf684db6f2f00 [ 58.831008][ T5425] x8 : 354cf684db6f2f00 x7 : 0000000000000001 x6 : 0000000000000001 [ 58.832322][ T5425] x5 : ffff800022266e38 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 58.833601][ T5425] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 58.834872][ T5425] Call trace: [ 58.835412][ T5425] btrfs_run_delayed_refs+0x3e4/0x458 [ 58.836214][ T5425] btrfs_commit_transaction+0x1e0/0x3078 [ 58.837055][ T5425] btrfs_sync_fs+0x628/0xb24 [ 58.837737][ T5425] sync_filesystem+0x1a0/0x218 [ 58.838405][ T5425] btrfs_remount+0x198/0x12b0 [ 58.839082][ T5425] legacy_reconfigure+0xf8/0x110 [ 58.839785][ T5425] reconfigure_super+0x1d4/0x6f4 [ 58.840567][ T5425] path_mount+0xc88/0x1008 [ 58.841222][ T5425] __arm64_sys_mount+0x514/0x5f0 [ 58.841953][ T5425] invoke_syscall+0x98/0x2b0 [ 58.842642][ T5425] el0_svc_common+0x138/0x258 [ 58.843327][ T5425] do_el0_svc+0x58/0x13c [ 58.843951][ T5425] el0_svc+0x78/0x1d0 [ 58.844547][ T5425] el0t_64_sync_handler+0xcc/0xe4 [ 58.845289][ T5425] el0t_64_sync+0x1a0/0x1a4 [ 58.846001][ T5425] irq event stamp: 79730 [ 58.846637][ T5425] hardirqs last enabled at (79729): [] __up_console_sem+0xb4/0xfc [ 58.848198][ T5425] hardirqs last disabled at (79730): [] el1_dbg+0x24/0x80 [ 58.849488][ T5425] softirqs last enabled at (79692): [] handle_softirqs+0xa40/0xbe4 [ 58.850957][ T5425] softirqs last disabled at (79669): [] __irq_exit_rcu+0x240/0x43c [ 58.852367][ T5425] ---[ end trace 4d46d6dd039cd449 ]--- [ 58.854594][ T5425] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 58.856090][ T5425] BTRFS info (device loop0): forced readonly [ 58.857002][ T5425] BTRFS error (device loop0): Remounting read-write after error is not allowed [ 59.024883][ T5446] loop0: detected capacity change from 0 to 32768 [ 59.029448][ T5446] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5446) [ 59.034991][ T5446] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 59.036581][ T5446] BTRFS info (device loop0): enabling auto defrag [ 59.037707][ T5446] BTRFS info (device loop0): enabling disk space caching [ 59.038875][ T5446] BTRFS info (device loop0): disabling tree log [ 59.040336][ T5446] BTRFS info (device loop0): force clearing of disk cache [ 59.041519][ T5446] BTRFS info (device loop0): force zlib compression, level 3 [ 59.042770][ T5446] BTRFS info (device loop0): disabling disk space caching [ 59.043876][ T5446] BTRFS info (device loop0): has skinny extents [ 59.055820][ T5446] BTRFS info (device loop0): enabling ssd optimizations [ 59.057540][ T5446] BTRFS info (device loop0): clearing free space tree [ 59.058720][ T5446] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 59.060641][ T5446] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 59.067132][ T5446] FAULT_INJECTION: forcing a failure. [ 59.067132][ T5446] name failslab, interval 1, probability 0, space 0, times 0 [ 59.069279][ T5446] CPU: 1 PID: 5446 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 59.070775][ T5446] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 59.072380][ T5446] Call trace: [ 59.072947][ T5446] dump_backtrace+0x0/0x458 [ 59.073707][ T5446] show_stack+0x2c/0x3c [ 59.074390][ T5446] __dump_stack+0x30/0x40 [ 59.075144][ T5446] dump_stack_lvl+0xf4/0x15c [ 59.075948][ T5446] dump_stack+0x1c/0x5c [ 59.076669][ T5446] should_fail+0x3bc/0x514 [ 59.077404][ T5446] __should_failslab+0xbc/0x10c [ 59.078255][ T5446] should_failslab+0x10/0x28 [ 59.078982][ T5446] slab_pre_alloc_hook+0x64/0xe8 [ 59.079744][ T5446] kmem_cache_alloc+0x94/0x3d4 [ 59.080480][ T5446] btrfs_alloc_path+0x5c/0x68 [ 59.081245][ T5446] __btrfs_run_delayed_refs+0xe70/0x348c [ 59.082115][ T5446] btrfs_run_delayed_refs+0x124/0x458 [ 59.082965][ T5446] btrfs_commit_transaction+0x1e0/0x3078 [ 59.083834][ T5446] btrfs_sync_fs+0x628/0xb24 [ 59.084541][ T5446] sync_filesystem+0x1a0/0x218 [ 59.085268][ T5446] btrfs_remount+0x198/0x12b0 [ 59.085992][ T5446] legacy_reconfigure+0xf8/0x110 [ 59.086727][ T5446] reconfigure_super+0x1d4/0x6f4 [ 59.087557][ T5446] path_mount+0xc88/0x1008 [ 59.088298][ T5446] __arm64_sys_mount+0x514/0x5f0 [ 59.089113][ T5446] invoke_syscall+0x98/0x2b0 [ 59.089787][ T5446] el0_svc_common+0x138/0x258 [ 59.090556][ T5446] do_el0_svc+0x58/0x13c [ 59.091278][ T5446] el0_svc+0x78/0x1d0 [ 59.091958][ T5446] el0t_64_sync_handler+0xcc/0xe4 [ 59.092772][ T5446] el0t_64_sync+0x1a0/0x1a4 [ 59.094282][ T5446] BTRFS error (device loop0): failed to run delayed ref for logical 5251072 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 59.096210][ T5446] ------------[ cut here ]------------ [ 59.097142][ T5446] WARNING: CPU: 1 PID: 5446 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 59.098631][ T5446] Modules linked in: [ 59.099197][ T5446] CPU: 1 PID: 5446 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 59.100653][ T5446] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 59.102281][ T5446] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 59.103643][ T5446] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 59.104604][ T5446] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 59.105548][ T5446] sp : ffff800023107530 [ 59.106193][ T5446] x29: ffff800023107540 x28: ffff0000c835d000 x27: dfff800000000000 [ 59.107508][ T5446] x26: ffff0000c835d024 x25: ffff0000dac44000 x24: 1fffe0001b977ee7 [ 59.108769][ T5446] x23: 1fffe0001b977ee7 x22: ffff0000dcbbf738 x21: 00000000fffffff4 [ 59.110107][ T5446] x20: 0000000000000051 x19: ffff0000dcbbf6e0 x18: 0000000000000001 [ 59.111455][ T5446] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 59.112753][ T5446] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 59.114043][ T5446] x11: 0000000000000000 x10: 0000000000000000 x9 : 445ef3564f224e00 [ 59.115408][ T5446] x8 : 445ef3564f224e00 x7 : 0000000000000001 x6 : 0000000000000001 [ 59.116846][ T5446] x5 : ffff800023106e38 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 59.118164][ T5446] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 59.119403][ T5446] Call trace: [ 59.119889][ T5446] btrfs_run_delayed_refs+0x3e4/0x458 [ 59.120673][ T5446] btrfs_commit_transaction+0x1e0/0x3078 [ 59.121604][ T5446] btrfs_sync_fs+0x628/0xb24 [ 59.122351][ T5446] sync_filesystem+0x1a0/0x218 [ 59.123105][ T5446] btrfs_remount+0x198/0x12b0 [ 59.123860][ T5446] legacy_reconfigure+0xf8/0x110 [ 59.124648][ T5446] reconfigure_super+0x1d4/0x6f4 [ 59.125454][ T5446] path_mount+0xc88/0x1008 [ 59.126130][ T5446] __arm64_sys_mount+0x514/0x5f0 [ 59.126911][ T5446] invoke_syscall+0x98/0x2b0 [ 59.127633][ T5446] el0_svc_common+0x138/0x258 [ 59.128377][ T5446] do_el0_svc+0x58/0x13c [ 59.129055][ T5446] el0_svc+0x78/0x1d0 [ 59.129775][ T5446] el0t_64_sync_handler+0xcc/0xe4 [ 59.130569][ T5446] el0t_64_sync+0x1a0/0x1a4 [ 59.131269][ T5446] irq event stamp: 80538 [ 59.131904][ T5446] hardirqs last enabled at (80537): [] __up_console_sem+0xb4/0xfc [ 59.133511][ T5446] hardirqs last disabled at (80538): [] el1_dbg+0x24/0x80 [ 59.135027][ T5446] softirqs last enabled at (80504): [] handle_softirqs+0xa40/0xbe4 [ 59.136640][ T5446] softirqs last disabled at (80487): [] __irq_exit_rcu+0x240/0x43c [ 59.138118][ T5446] ---[ end trace 4d46d6dd039cd44a ]--- [ 59.139181][ T5446] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 59.140907][ T5446] BTRFS info (device loop0): forced readonly [ 59.141978][ T5446] BTRFS error (device loop0): Remounting read-write after error is not allowed [ 59.333961][ T5467] loop0: detected capacity change from 0 to 32768 [ 59.336291][ T5467] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5467) [ 59.339285][ T5467] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 59.341145][ T5467] BTRFS info (device loop0): enabling auto defrag [ 59.342139][ T5467] BTRFS info (device loop0): enabling disk space caching [ 59.343281][ T5467] BTRFS info (device loop0): disabling tree log [ 59.344263][ T5467] BTRFS info (device loop0): force clearing of disk cache [ 59.345546][ T5467] BTRFS info (device loop0): force zlib compression, level 3 [ 59.346746][ T5467] BTRFS info (device loop0): disabling disk space caching [ 59.347891][ T5467] BTRFS info (device loop0): has skinny extents [ 59.363285][ T5467] BTRFS info (device loop0): enabling ssd optimizations [ 59.364933][ T5467] BTRFS info (device loop0): clearing free space tree [ 59.366200][ T5467] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 59.367739][ T5467] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 59.374509][ T5467] FAULT_INJECTION: forcing a failure. [ 59.374509][ T5467] name failslab, interval 1, probability 0, space 0, times 0 [ 59.376608][ T5467] CPU: 1 PID: 5467 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 59.377989][ T5467] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 59.379646][ T5467] Call trace: [ 59.380193][ T5467] dump_backtrace+0x0/0x458 [ 59.380912][ T5467] show_stack+0x2c/0x3c [ 59.381545][ T5467] __dump_stack+0x30/0x40 [ 59.382245][ T5467] dump_stack_lvl+0xf4/0x15c [ 59.382954][ T5467] dump_stack+0x1c/0x5c [ 59.383613][ T5467] should_fail+0x3bc/0x514 [ 59.384297][ T5467] __should_failslab+0xbc/0x10c [ 59.385077][ T5467] should_failslab+0x10/0x28 [ 59.385807][ T5467] slab_pre_alloc_hook+0x64/0xe8 [ 59.386601][ T5467] kmem_cache_alloc+0x94/0x3d4 [ 59.387375][ T5467] start_transaction+0x4d0/0x13ec [ 59.388205][ T5467] btrfs_attach_transaction_barrier+0x30/0xac [ 59.389176][ T5467] btrfs_sync_fs+0x13c/0xb24 [ 59.389915][ T5467] sync_filesystem+0x1a0/0x218 [ 59.390730][ T5467] btrfs_remount+0x198/0x12b0 [ 59.391500][ T5467] legacy_reconfigure+0xf8/0x110 [ 59.392242][ T5467] reconfigure_super+0x1d4/0x6f4 [ 59.393014][ T5467] path_mount+0xc88/0x1008 [ 59.393691][ T5467] __arm64_sys_mount+0x514/0x5f0 [ 59.394484][ T5467] invoke_syscall+0x98/0x2b0 [ 59.395274][ T5467] el0_svc_common+0x138/0x258 [ 59.396070][ T5467] do_el0_svc+0x58/0x13c [ 59.396766][ T5467] el0_svc+0x78/0x1d0 [ 59.397390][ T5467] el0t_64_sync_handler+0xcc/0xe4 [ 59.398232][ T5467] el0t_64_sync+0x1a0/0x1a4 [ 59.586587][ T5488] loop0: detected capacity change from 0 to 32768 [ 59.588986][ T5488] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5488) [ 59.593290][ T5488] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 59.595450][ T5488] BTRFS info (device loop0): enabling auto defrag [ 59.596509][ T5488] BTRFS info (device loop0): enabling disk space caching [ 59.597569][ T5488] BTRFS info (device loop0): disabling tree log [ 59.598574][ T5488] BTRFS info (device loop0): force clearing of disk cache [ 59.599763][ T5488] BTRFS info (device loop0): force zlib compression, level 3 [ 59.600856][ T5488] BTRFS info (device loop0): disabling disk space caching [ 59.602011][ T5488] BTRFS info (device loop0): has skinny extents [ 59.612924][ T5488] BTRFS info (device loop0): enabling ssd optimizations [ 59.614489][ T5488] BTRFS info (device loop0): clearing free space tree [ 59.615702][ T5488] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 59.617347][ T5488] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 59.623986][ T5488] FAULT_INJECTION: forcing a failure. [ 59.623986][ T5488] name failslab, interval 1, probability 0, space 0, times 0 [ 59.626051][ T5488] CPU: 1 PID: 5488 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 59.627382][ T5488] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 59.628872][ T5488] Call trace: [ 59.629364][ T5488] dump_backtrace+0x0/0x458 [ 59.630039][ T5488] show_stack+0x2c/0x3c [ 59.630687][ T5488] __dump_stack+0x30/0x40 [ 59.631435][ T5488] dump_stack_lvl+0xf4/0x15c [ 59.632187][ T5488] dump_stack+0x1c/0x5c [ 59.632863][ T5488] should_fail+0x3bc/0x514 [ 59.633602][ T5488] __should_failslab+0xbc/0x10c [ 59.634424][ T5488] should_failslab+0x10/0x28 [ 59.635196][ T5488] slab_pre_alloc_hook+0x64/0xe8 [ 59.636002][ T5488] kmem_cache_alloc+0x94/0x3d4 [ 59.636788][ T5488] btrfs_alloc_path+0x5c/0x68 [ 59.637525][ T5488] __btrfs_run_delayed_refs+0xe70/0x348c [ 59.638429][ T5488] btrfs_run_delayed_refs+0x124/0x458 [ 59.639312][ T5488] btrfs_commit_transaction+0x1e0/0x3078 [ 59.640233][ T5488] btrfs_sync_fs+0x628/0xb24 [ 59.640947][ T5488] sync_filesystem+0x1a0/0x218 [ 59.641679][ T5488] btrfs_remount+0x198/0x12b0 [ 59.642421][ T5488] legacy_reconfigure+0xf8/0x110 [ 59.643228][ T5488] reconfigure_super+0x1d4/0x6f4 [ 59.644061][ T5488] path_mount+0xc88/0x1008 [ 59.644832][ T5488] __arm64_sys_mount+0x514/0x5f0 [ 59.645573][ T5488] invoke_syscall+0x98/0x2b0 [ 59.646311][ T5488] el0_svc_common+0x138/0x258 [ 59.647031][ T5488] do_el0_svc+0x58/0x13c [ 59.647727][ T5488] el0_svc+0x78/0x1d0 [ 59.648442][ T5488] el0t_64_sync_handler+0xcc/0xe4 [ 59.649325][ T5488] el0t_64_sync+0x1a0/0x1a4 [ 59.650738][ T5488] BTRFS error (device loop0): failed to run delayed ref for logical 5251072 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 59.652921][ T5488] ------------[ cut here ]------------ [ 59.653932][ T5488] WARNING: CPU: 1 PID: 5488 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 59.655545][ T5488] Modules linked in: [ 59.656166][ T5488] CPU: 1 PID: 5488 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 59.657620][ T5488] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 59.659268][ T5488] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 59.660409][ T5488] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 59.661423][ T5488] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 59.662357][ T5488] sp : ffff800023077530 [ 59.663091][ T5488] x29: ffff800023077540 x28: ffff0000c17a5000 x27: dfff800000000000 [ 59.664371][ T5488] x26: ffff0000c17a5024 x25: ffff0000d2b1c000 x24: 1fffe0001b977e8f [ 59.665686][ T5488] x23: 1fffe0001b977e8f x22: ffff0000dcbbf478 x21: 00000000fffffff4 [ 59.666909][ T5488] x20: 0000000000000051 x19: ffff0000dcbbf420 x18: 0000000000000001 [ 59.668052][ T5488] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 59.669249][ T5488] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 59.670570][ T5488] x11: 0000000000000000 x10: 0000000000000000 x9 : 37e9ceca55c8b000 [ 59.671903][ T5488] x8 : 37e9ceca55c8b000 x7 : 0000000000000001 x6 : 0000000000000001 [ 59.673125][ T5488] x5 : ffff800023076e38 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 59.674321][ T5488] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 59.675521][ T5488] Call trace: [ 59.676005][ T5488] btrfs_run_delayed_refs+0x3e4/0x458 [ 59.676886][ T5488] btrfs_commit_transaction+0x1e0/0x3078 [ 59.677819][ T5488] btrfs_sync_fs+0x628/0xb24 [ 59.678539][ T5488] sync_filesystem+0x1a0/0x218 [ 59.679311][ T5488] btrfs_remount+0x198/0x12b0 [ 59.680064][ T5488] legacy_reconfigure+0xf8/0x110 [ 59.680844][ T5488] reconfigure_super+0x1d4/0x6f4 [ 59.681598][ T5488] path_mount+0xc88/0x1008 [ 59.682269][ T5488] __arm64_sys_mount+0x514/0x5f0 [ 59.683087][ T5488] invoke_syscall+0x98/0x2b0 [ 59.683827][ T5488] el0_svc_common+0x138/0x258 [ 59.684563][ T5488] do_el0_svc+0x58/0x13c [ 59.685221][ T5488] el0_svc+0x78/0x1d0 [ 59.685883][ T5488] el0t_64_sync_handler+0xcc/0xe4 [ 59.686731][ T5488] el0t_64_sync+0x1a0/0x1a4 [ 59.687475][ T5488] irq event stamp: 79578 [ 59.688121][ T5488] hardirqs last enabled at (79577): [] __up_console_sem+0xb4/0xfc [ 59.689616][ T5488] hardirqs last disabled at (79578): [] el1_dbg+0x24/0x80 [ 59.691106][ T5488] softirqs last enabled at (79540): [] handle_softirqs+0xa40/0xbe4 [ 59.692622][ T5488] softirqs last disabled at (79497): [] __irq_exit_rcu+0x240/0x43c [ 59.694146][ T5488] ---[ end trace 4d46d6dd039cd44b ]--- [ 59.695165][ T5488] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 59.696730][ T5488] BTRFS info (device loop0): forced readonly [ 59.697723][ T5488] BTRFS error (device loop0): Remounting read-write after error is not allowed [ 59.898895][ T5509] loop0: detected capacity change from 0 to 32768 [ 59.902658][ T5509] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5509) [ 59.907123][ T5509] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 59.908503][ T5509] BTRFS info (device loop0): enabling auto defrag [ 59.909456][ T5509] BTRFS info (device loop0): enabling disk space caching [ 59.910646][ T5509] BTRFS info (device loop0): disabling tree log [ 59.911852][ T5509] BTRFS info (device loop0): force clearing of disk cache [ 59.912946][ T5509] BTRFS info (device loop0): force zlib compression, level 3 [ 59.914126][ T5509] BTRFS info (device loop0): disabling disk space caching [ 59.915232][ T5509] BTRFS info (device loop0): has skinny extents [ 59.922682][ T5509] BTRFS info (device loop0): enabling ssd optimizations [ 59.924232][ T5509] BTRFS info (device loop0): clearing free space tree [ 59.925257][ T5509] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 59.926743][ T5509] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 59.932952][ T5509] FAULT_INJECTION: forcing a failure. [ 59.932952][ T5509] name failslab, interval 1, probability 0, space 0, times 0 [ 59.934814][ T5509] CPU: 1 PID: 5509 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 59.936076][ T5509] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 59.937567][ T5509] Call trace: [ 59.938133][ T5509] dump_backtrace+0x0/0x458 [ 59.938885][ T5509] show_stack+0x2c/0x3c [ 59.939583][ T5509] __dump_stack+0x30/0x40 [ 59.940309][ T5509] dump_stack_lvl+0xf4/0x15c [ 59.941026][ T5509] dump_stack+0x1c/0x5c [ 59.941665][ T5509] should_fail+0x3bc/0x514 [ 59.942398][ T5509] __should_failslab+0xbc/0x10c [ 59.943230][ T5509] should_failslab+0x10/0x28 [ 59.943981][ T5509] slab_pre_alloc_hook+0x64/0xe8 [ 59.944753][ T5509] kmem_cache_alloc+0x94/0x3d4 [ 59.945523][ T5509] btrfs_alloc_path+0x5c/0x68 [ 59.946312][ T5509] __btrfs_free_extent+0x1a8/0x1abc [ 59.947196][ T5509] __btrfs_run_delayed_refs+0xbf0/0x348c [ 59.948113][ T5509] btrfs_run_delayed_refs+0x124/0x458 [ 59.948936][ T5509] btrfs_commit_transaction+0x1e0/0x3078 [ 59.949740][ T5509] btrfs_sync_fs+0x628/0xb24 [ 59.950439][ T5509] sync_filesystem+0x1a0/0x218 [ 59.951154][ T5509] btrfs_remount+0x198/0x12b0 [ 59.951804][ T5509] legacy_reconfigure+0xf8/0x110 [ 59.952527][ T5509] reconfigure_super+0x1d4/0x6f4 [ 59.953324][ T5509] path_mount+0xc88/0x1008 [ 59.953954][ T5509] __arm64_sys_mount+0x514/0x5f0 [ 59.954670][ T5509] invoke_syscall+0x98/0x2b0 [ 59.955386][ T5509] el0_svc_common+0x138/0x258 [ 59.956082][ T5509] do_el0_svc+0x58/0x13c [ 59.956719][ T5509] el0_svc+0x78/0x1d0 [ 59.957388][ T5509] el0t_64_sync_handler+0xcc/0xe4 [ 59.958168][ T5509] el0t_64_sync+0x1a0/0x1a4 [ 59.961050][ T5509] BTRFS error (device loop0): failed to run delayed ref for logical 5255168 num_bytes 4096 type 176 action 2 ref_mod 1: -12 [ 59.962991][ T5509] ------------[ cut here ]------------ [ 59.963952][ T5509] WARNING: CPU: 1 PID: 5509 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 59.965528][ T5509] Modules linked in: [ 59.966143][ T5509] CPU: 1 PID: 5509 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 59.967635][ T5509] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 59.969333][ T5509] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 59.970509][ T5509] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 59.971369][ T5509] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 59.972212][ T5509] sp : ffff800023077530 [ 59.972832][ T5509] x29: ffff800023077540 x28: ffff0000c17a4000 x27: dfff800000000000 [ 59.974197][ T5509] x26: ffff0000c17a4024 x25: ffff0000d2b1c000 x24: 1fffe0001b977e63 [ 59.975483][ T5509] x23: 1fffe0001b977e63 x22: ffff0000dcbbf318 x21: 00000000fffffff4 [ 59.976759][ T5509] x20: 0000000000000051 x19: ffff0000dcbbf2c0 x18: 0000000000000001 [ 59.977929][ T5509] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 59.979161][ T5509] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 59.980466][ T5509] x11: 0000000000000000 x10: 0000000000000000 x9 : 6f93f27495b30400 [ 59.981672][ T5509] x8 : 6f93f27495b30400 x7 : 0000000000000001 x6 : 0000000000000001 [ 59.982950][ T5509] x5 : ffff800023076e38 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 59.984285][ T5509] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 59.985499][ T5509] Call trace: [ 59.986051][ T5509] btrfs_run_delayed_refs+0x3e4/0x458 [ 59.986951][ T5509] btrfs_commit_transaction+0x1e0/0x3078 [ 59.987870][ T5509] btrfs_sync_fs+0x628/0xb24 [ 59.988585][ T5509] sync_filesystem+0x1a0/0x218 [ 59.989314][ T5509] btrfs_remount+0x198/0x12b0 [ 59.990023][ T5509] legacy_reconfigure+0xf8/0x110 [ 59.990767][ T5509] reconfigure_super+0x1d4/0x6f4 [ 59.991617][ T5509] path_mount+0xc88/0x1008 [ 59.992390][ T5509] __arm64_sys_mount+0x514/0x5f0 [ 59.993189][ T5509] invoke_syscall+0x98/0x2b0 [ 59.993944][ T5509] el0_svc_common+0x138/0x258 [ 59.994651][ T5509] do_el0_svc+0x58/0x13c [ 59.995400][ T5509] el0_svc+0x78/0x1d0 [ 59.996089][ T5509] el0t_64_sync_handler+0xcc/0xe4 [ 59.996921][ T5509] el0t_64_sync+0x1a0/0x1a4 [ 59.997671][ T5509] irq event stamp: 79294 [ 59.998367][ T5509] hardirqs last enabled at (79293): [] __up_console_sem+0xb4/0xfc [ 59.999941][ T5509] hardirqs last disabled at (79294): [] el1_dbg+0x24/0x80 [ 60.001399][ T5509] softirqs last enabled at (79256): [] handle_softirqs+0xa40/0xbe4 [ 60.002965][ T5509] softirqs last disabled at (79213): [] __irq_exit_rcu+0x240/0x43c [ 60.004419][ T5509] ---[ end trace 4d46d6dd039cd44c ]--- [ 60.006265][ T5509] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 60.007642][ T5509] BTRFS info (device loop0): forced readonly [ 60.008590][ T5509] BTRFS error (device loop0): Remounting read-write after error is not allowed [ 60.203144][ T5530] loop0: detected capacity change from 0 to 32768 [ 60.205451][ T5530] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5530) [ 60.208654][ T5530] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 60.210049][ T5530] BTRFS info (device loop0): enabling auto defrag [ 60.211178][ T5530] BTRFS info (device loop0): enabling disk space caching [ 60.212327][ T5530] BTRFS info (device loop0): disabling tree log [ 60.213223][ T5530] BTRFS info (device loop0): force clearing of disk cache [ 60.214486][ T5530] BTRFS info (device loop0): force zlib compression, level 3 [ 60.215754][ T5530] BTRFS info (device loop0): disabling disk space caching [ 60.216993][ T5530] BTRFS info (device loop0): has skinny extents [ 60.226903][ T5530] BTRFS info (device loop0): enabling ssd optimizations [ 60.228495][ T5530] BTRFS info (device loop0): clearing free space tree [ 60.230072][ T5530] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 60.231666][ T5530] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 60.238040][ T5530] FAULT_INJECTION: forcing a failure. [ 60.238040][ T5530] name failslab, interval 1, probability 0, space 0, times 0