Warning: Permanently added '10.128.1.218' (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 [ 47.808738][ T4260] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SSFS 1970/01/01 00:00:47 executed programs: 0 [ 47.874840][ T4266] chnl_net:caif_netlink_parms(): no params data found [ 47.892410][ T4266] bridge0: port 1(bridge_slave_0) entered blocking state [ 47.893741][ T4266] bridge0: port 1(bridge_slave_0) entered disabled state [ 47.895216][ T4266] device bridge_slave_0 entered promiscuous mode [ 47.897233][ T4266] bridge0: port 2(bridge_slave_1) entered blocking state [ 47.898471][ T4266] bridge0: port 2(bridge_slave_1) entered disabled state [ 47.899834][ T4266] device bridge_slave_1 entered promiscuous mode [ 47.906986][ T4266] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 47.909486][ T4266] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 47.917659][ T4266] team0: Port device team_slave_0 added [ 47.919654][ T4266] team0: Port device team_slave_1 added [ 47.925921][ T4266] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 47.927054][ T4266] 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. [ 47.931543][ T4266] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 47.934155][ T4266] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 47.935279][ T4266] 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. [ 47.939169][ T4266] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 47.999601][ T4266] device hsr_slave_0 entered promiscuous mode [ 48.018799][ T4266] device hsr_slave_1 entered promiscuous mode [ 48.564778][ T4266] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 48.609168][ T4266] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 48.649484][ T4266] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 48.689964][ T4266] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 48.724007][ T4266] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.725272][ T4266] bridge0: port 2(bridge_slave_1) entered forwarding state [ 48.726571][ T4266] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.727738][ T4266] bridge0: port 1(bridge_slave_0) entered forwarding state [ 48.745337][ T4266] 8021q: adding VLAN 0 to HW filter on device bond0 [ 48.749239][ T294] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 48.751144][ T294] bridge0: port 1(bridge_slave_0) entered disabled state [ 48.752743][ T294] bridge0: port 2(bridge_slave_1) entered disabled state [ 48.754812][ T294] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 48.760497][ T4266] 8021q: adding VLAN 0 to HW filter on device team0 [ 48.769663][ T4192] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 48.771255][ T4192] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.772426][ T4192] bridge0: port 1(bridge_slave_0) entered forwarding state [ 48.773904][ T4192] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 48.775665][ T4192] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.776742][ T4192] bridge0: port 2(bridge_slave_1) entered forwarding state [ 48.780085][ T4192] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 48.786609][ T4266] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 48.789134][ T4266] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 48.791680][ T4192] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 48.793684][ T4192] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 48.795809][ T4192] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 48.797568][ T4192] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 48.802633][ T4192] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 48.841728][ T294] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 48.843087][ T294] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 48.846754][ T4266] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 48.856784][ T4192] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 48.869362][ T294] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 48.871061][ T294] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 48.872841][ T294] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 48.874187][ T294] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 48.875988][ T4266] device veth0_vlan entered promiscuous mode [ 48.880242][ T4266] device veth1_vlan entered promiscuous mode [ 48.886462][ T294] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 48.888217][ T294] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 48.889729][ T294] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 48.891261][ T294] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 48.894260][ T4266] device veth0_macvtap entered promiscuous mode [ 48.896724][ T4266] device veth1_macvtap entered promiscuous mode [ 48.903104][ T4266] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 48.904314][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 48.905777][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 48.907133][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 48.910050][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 48.913614][ T4266] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 48.915509][ T4192] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 48.917019][ T4192] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 48.920185][ T4266] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 48.921645][ T4266] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 48.923081][ T4266] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 48.924479][ T4266] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 49.071794][ T4400] loop0: detected capacity change from 0 to 32768 [ 49.080132][ T4400] ======================================================= [ 49.080132][ T4400] WARNING: The mand mount option has been deprecated and [ 49.080132][ T4400] and is ignored by this kernel. Remove the mand [ 49.080132][ T4400] option from the mount to silence this warning. [ 49.080132][ T4400] ======================================================= [ 49.092650][ T4400] BTRFS: device fsid d552757d-9c39-40e3-95f0-16d819589928 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4400) [ 49.114723][ T4400] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 49.116332][ T4400] BTRFS info (device loop0): use zlib compression, level 3 [ 49.117599][ T4400] BTRFS info (device loop0): disabling tree log [ 49.120508][ T4400] BTRFS info (device loop0): turning on sync discard [ 49.124228][ T4400] BTRFS info (device loop0): enabling ssd optimizations [ 49.125466][ T4400] BTRFS info (device loop0): using spread ssd allocation scheme [ 49.126840][ T4400] BTRFS info (device loop0): using free space tree [ 49.130837][ T4400] BTRFS info (device loop0): has skinny extents [ 49.192123][ T4400] FAULT_INJECTION: forcing a failure. [ 49.192123][ T4400] name failslab, interval 1, probability 0, space 0, times 1 [ 49.194530][ T4400] CPU: 1 PID: 4400 Comm: syz-executor.0 Not tainted syzkaller #0 [ 49.195792][ T4400] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 49.197425][ T4400] Call trace: [ 49.197942][ T4400] dump_backtrace+0x0/0x458 [ 49.198692][ T4400] show_stack+0x2c/0x3c [ 49.199357][ T4400] __dump_stack+0x30/0x40 [ 49.200107][ T4400] dump_stack_lvl+0xf4/0x15c [ 49.200873][ T4400] dump_stack+0x1c/0x5c [ 49.201529][ T4400] should_fail+0x3bc/0x514 [ 49.202195][ T4400] __should_failslab+0xbc/0x10c [ 49.202910][ T4400] should_failslab+0x10/0x28 [ 49.203633][ T4400] slab_pre_alloc_hook+0x64/0xe8 [ 49.204391][ T4400] kmem_cache_alloc+0x94/0x3d4 [ 49.205133][ T4400] btrfs_alloc_path+0x5c/0x68 [ 49.205923][ T4400] __btrfs_run_delayed_refs+0xe70/0x348c [ 49.206800][ T4400] btrfs_run_delayed_refs+0x124/0x458 [ 49.207680][ T4400] btrfs_commit_transaction+0x1e0/0x3078 [ 49.208608][ T4400] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 49.209432][ T4400] btrfs_ioctl+0x50c/0xa8c [ 49.210146][ T4400] __arm64_sys_ioctl+0x14c/0x1c8 [ 49.210967][ T4400] invoke_syscall+0x98/0x2b0 [ 49.211717][ T4400] el0_svc_common+0x138/0x258 [ 49.212479][ T4400] do_el0_svc+0x58/0x13c [ 49.213200][ T4400] el0_svc+0x78/0x1d0 [ 49.213833][ T4400] el0t_64_sync_handler+0xcc/0xe4 [ 49.214667][ T4400] el0t_64_sync+0x1a0/0x1a4 [ 49.222312][ T4400] BTRFS error (device loop0): failed to run delayed ref for logical 5242880 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 49.224455][ T4400] ------------[ cut here ]------------ [ 49.225470][ T4400] WARNING: CPU: 1 PID: 4400 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 49.227225][ T4400] Modules linked in: [ 49.227810][ T4400] CPU: 1 PID: 4400 Comm: syz-executor.0 Not tainted syzkaller #0 [ 49.229189][ T4400] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 49.230878][ T4400] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 49.232172][ T4400] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 49.233105][ T4400] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 49.234030][ T4400] sp : ffff80001fc677d0 [ 49.234706][ T4400] x29: ffff80001fc677e0 x28: ffff0000c13fb000 x27: dfff800000000000 [ 49.236046][ T4400] x26: ffff0000c13fb024 x25: ffff0000d9ff0000 x24: 1fffe0001bd94621 [ 49.237356][ T4400] x23: 1fffe0001bd94621 x22: ffff0000deca3108 x21: 00000000fffffff4 [ 49.238703][ T4400] x20: 0000000000000051 x19: ffff0000deca30b0 x18: 0000000000000001 [ 49.239957][ T4400] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 49.241325][ T4400] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 49.242654][ T4400] x11: 0000000000000000 x10: 0000000000000000 x9 : f2837fae28956500 [ 49.243917][ T4400] x8 : f2837fae28956500 x7 : 0000000000000001 x6 : 0000000000000001 [ 49.245223][ T4400] x5 : ffff80001fc670d8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 49.246642][ T4400] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 49.247984][ T4400] Call trace: [ 49.248588][ T4400] btrfs_run_delayed_refs+0x3e4/0x458 [ 49.249467][ T4400] btrfs_commit_transaction+0x1e0/0x3078 [ 49.250377][ T4400] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 49.251295][ T4400] btrfs_ioctl+0x50c/0xa8c [ 49.252084][ T4400] __arm64_sys_ioctl+0x14c/0x1c8 [ 49.252905][ T4400] invoke_syscall+0x98/0x2b0 [ 49.253644][ T4400] el0_svc_common+0x138/0x258 [ 49.254356][ T4400] do_el0_svc+0x58/0x13c [ 49.255055][ T4400] el0_svc+0x78/0x1d0 [ 49.255657][ T4400] el0t_64_sync_handler+0xcc/0xe4 [ 49.256507][ T4400] el0t_64_sync+0x1a0/0x1a4 [ 49.257281][ T4400] irq event stamp: 81778 [ 49.257980][ T4400] hardirqs last enabled at (81777): [] __up_console_sem+0xb4/0xfc [ 49.259560][ T4400] hardirqs last disabled at (81778): [] el1_dbg+0x24/0x80 [ 49.260947][ T4400] softirqs last enabled at (81738): [] handle_softirqs+0xa40/0xbe4 [ 49.262432][ T4400] softirqs last disabled at (81717): [] __irq_exit_rcu+0x240/0x43c [ 49.263942][ T4400] ---[ end trace 6547c966de0c93f7 ]--- [ 49.267434][ T4400] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 49.270323][ T4400] BTRFS info (device loop0): forced readonly [ 49.451529][ T4474] loop0: detected capacity change from 0 to 32768 [ 49.459410][ T4474] BTRFS: device fsid d552757d-9c39-40e3-95f0-16d819589928 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4474) [ 49.473992][ T4474] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 49.475635][ T4474] BTRFS info (device loop0): use zlib compression, level 3 [ 49.477002][ T4474] BTRFS info (device loop0): disabling tree log [ 49.479918][ T4474] BTRFS info (device loop0): turning on sync discard [ 49.481197][ T4474] BTRFS info (device loop0): enabling ssd optimizations [ 49.482188][ T4474] BTRFS info (device loop0): using spread ssd allocation scheme [ 49.483531][ T4474] BTRFS info (device loop0): using free space tree [ 49.484538][ T4474] BTRFS info (device loop0): has skinny extents [ 49.533948][ T4474] FAULT_INJECTION: forcing a failure. [ 49.533948][ T4474] name failslab, interval 1, probability 0, space 0, times 0 [ 49.535962][ T4474] CPU: 0 PID: 4474 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 49.537296][ T4474] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 49.538855][ T4474] Call trace: [ 49.539415][ T4474] dump_backtrace+0x0/0x458 [ 49.540183][ T4474] show_stack+0x2c/0x3c [ 49.540832][ T4474] __dump_stack+0x30/0x40 [ 49.541522][ T4474] dump_stack_lvl+0xf4/0x15c [ 49.542239][ T4474] dump_stack+0x1c/0x5c [ 49.542966][ T4474] should_fail+0x3bc/0x514 [ 49.543728][ T4474] __should_failslab+0xbc/0x10c [ 49.544497][ T4474] should_failslab+0x10/0x28 [ 49.545266][ T4474] slab_pre_alloc_hook+0x64/0xe8 [ 49.546056][ T4474] kmem_cache_alloc+0x94/0x3d4 [ 49.546804][ T4474] btrfs_alloc_path+0x5c/0x68 [ 49.547586][ T4474] __btrfs_free_extent+0x1a8/0x1abc [ 49.548406][ T4474] __btrfs_run_delayed_refs+0xbf0/0x348c [ 49.549346][ T4474] btrfs_run_delayed_refs+0x124/0x458 [ 49.550197][ T4474] btrfs_commit_transaction+0x1e0/0x3078 [ 49.551089][ T4474] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 49.551927][ T4474] btrfs_ioctl+0x50c/0xa8c [ 49.552652][ T4474] __arm64_sys_ioctl+0x14c/0x1c8 [ 49.553477][ T4474] invoke_syscall+0x98/0x2b0 [ 49.554214][ T4474] el0_svc_common+0x138/0x258 [ 49.555037][ T4474] do_el0_svc+0x58/0x13c [ 49.555689][ T4474] el0_svc+0x78/0x1d0 [ 49.556337][ T4474] el0t_64_sync_handler+0xcc/0xe4 [ 49.557111][ T4474] el0t_64_sync+0x1a0/0x1a4 [ 49.566777][ T4474] BTRFS error (device loop0): failed to run delayed ref for logical 5255168 num_bytes 4096 type 176 action 2 ref_mod 1: -12 [ 49.572343][ T4474] ------------[ cut here ]------------ [ 49.573224][ T4474] WARNING: CPU: 0 PID: 4474 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 49.574792][ T4474] Modules linked in: [ 49.575454][ T4474] CPU: 0 PID: 4474 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 49.576901][ T4474] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 49.578526][ T4474] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 49.579798][ T4474] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 49.580767][ T4474] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 49.581653][ T4474] sp : ffff80001f6677d0 [ 49.582377][ T4474] x29: ffff80001f6677e0 x28: ffff0000c9e0a000 x27: dfff800000000000 [ 49.583694][ T4474] x26: ffff0000c9e0a024 x25: ffff0000d9128000 x24: 1fffe0001bdbaa21 [ 49.585001][ T4474] x23: 1fffe0001bdbaa21 x22: ffff0000dedd5108 x21: 00000000fffffff4 [ 49.586309][ T4474] x20: 0000000000000051 x19: ffff0000dedd50b0 x18: 0000000000000001 [ 49.587630][ T4474] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 49.588941][ T4474] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 49.590279][ T4474] x11: 0000000000000000 x10: 0000000000000000 x9 : 224cce4e0291eb00 [ 49.591533][ T4474] x8 : 224cce4e0291eb00 x7 : 0000000000000001 x6 : 0000000000000001 [ 49.592941][ T4474] x5 : ffff80001f6670d8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 49.594245][ T4474] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 49.595526][ T4474] Call trace: [ 49.596051][ T4474] btrfs_run_delayed_refs+0x3e4/0x458 [ 49.597011][ T4474] btrfs_commit_transaction+0x1e0/0x3078 [ 49.597970][ T4474] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 49.598850][ T4474] btrfs_ioctl+0x50c/0xa8c [ 49.599551][ T4474] __arm64_sys_ioctl+0x14c/0x1c8 [ 49.600328][ T4474] invoke_syscall+0x98/0x2b0 [ 49.601061][ T4474] el0_svc_common+0x138/0x258 [ 49.601869][ T4474] do_el0_svc+0x58/0x13c [ 49.602565][ T4474] el0_svc+0x78/0x1d0 [ 49.603187][ T4474] el0t_64_sync_handler+0xcc/0xe4 [ 49.604017][ T4474] el0t_64_sync+0x1a0/0x1a4 [ 49.604719][ T4474] irq event stamp: 79584 [ 49.605384][ T4474] hardirqs last enabled at (79583): [] __up_console_sem+0xb4/0xfc [ 49.606843][ T4474] hardirqs last disabled at (79584): [] el1_dbg+0x24/0x80 [ 49.608345][ T4474] softirqs last enabled at (79542): [] handle_softirqs+0xa40/0xbe4 [ 49.609860][ T4474] softirqs last disabled at (79503): [] __irq_exit_rcu+0x240/0x43c [ 49.611353][ T4474] ---[ end trace 6547c966de0c93f8 ]--- [ 49.613982][ T4474] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 49.616231][ T4474] BTRFS info (device loop0): forced readonly [ 49.815946][ T4536] loop0: detected capacity change from 0 to 32768 [ 49.824234][ T4536] BTRFS: device fsid d552757d-9c39-40e3-95f0-16d819589928 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4536) [ 49.834305][ T4536] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 49.836350][ T4536] BTRFS info (device loop0): use zlib compression, level 3 [ 49.837901][ T4536] BTRFS info (device loop0): disabling tree log [ 49.840061][ T4536] BTRFS info (device loop0): turning on sync discard [ 49.842436][ T4536] BTRFS info (device loop0): enabling ssd optimizations [ 49.846196][ T4536] BTRFS info (device loop0): using spread ssd allocation scheme [ 49.848375][ T4519] Bluetooth: hci0: command 0x0409 tx timeout [ 49.856276][ T4536] BTRFS info (device loop0): using free space tree [ 49.857417][ T4536] BTRFS info (device loop0): has skinny extents [ 49.909420][ T4536] FAULT_INJECTION: forcing a failure. [ 49.909420][ T4536] name failslab, interval 1, probability 0, space 0, times 0 [ 49.911352][ T4536] CPU: 0 PID: 4536 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 49.912699][ T4536] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 49.914133][ T4536] Call trace: [ 49.914632][ T4536] dump_backtrace+0x0/0x458 [ 49.915284][ T4536] show_stack+0x2c/0x3c [ 49.915922][ T4536] __dump_stack+0x30/0x40 [ 49.916668][ T4536] dump_stack_lvl+0xf4/0x15c [ 49.917469][ T4536] dump_stack+0x1c/0x5c [ 49.918175][ T4536] should_fail+0x3bc/0x514 [ 49.918907][ T4536] __should_failslab+0xbc/0x10c [ 49.919689][ T4536] should_failslab+0x10/0x28 [ 49.920503][ T4536] slab_pre_alloc_hook+0x64/0xe8 [ 49.921333][ T4536] kmem_cache_alloc+0x94/0x3d4 [ 49.922141][ T4536] btrfs_alloc_path+0x5c/0x68 [ 49.922916][ T4536] __btrfs_free_extent+0x1a8/0x1abc [ 49.923774][ T4536] __btrfs_run_delayed_refs+0xbf0/0x348c [ 49.924751][ T4536] btrfs_run_delayed_refs+0x124/0x458 [ 49.925584][ T4536] btrfs_commit_transaction+0x1e0/0x3078 [ 49.926524][ T4536] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 49.927426][ T4536] btrfs_ioctl+0x50c/0xa8c [ 49.928179][ T4536] __arm64_sys_ioctl+0x14c/0x1c8 [ 49.929018][ T4536] invoke_syscall+0x98/0x2b0 [ 49.929762][ T4536] el0_svc_common+0x138/0x258 [ 49.930546][ T4536] do_el0_svc+0x58/0x13c [ 49.931245][ T4536] el0_svc+0x78/0x1d0 [ 49.931863][ T4536] el0t_64_sync_handler+0xcc/0xe4 [ 49.932651][ T4536] el0t_64_sync+0x1a0/0x1a4 [ 49.943154][ T4536] BTRFS error (device loop0): failed to run delayed ref for logical 5255168 num_bytes 4096 type 176 action 2 ref_mod 1: -12 [ 49.954439][ T4536] ------------[ cut here ]------------ [ 49.955414][ T4536] WARNING: CPU: 0 PID: 4536 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 49.957058][ T4536] Modules linked in: [ 49.957625][ T4536] CPU: 0 PID: 4536 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 49.959010][ T4536] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 49.960643][ T4536] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 49.961875][ T4536] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 49.962737][ T4536] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 49.963599][ T4536] sp : ffff80001fc477d0 [ 49.964247][ T4536] x29: ffff80001fc477e0 x28: ffff0000db447000 x27: dfff800000000000 [ 49.965504][ T4536] x26: ffff0000db447024 x25: ffff0000d0890000 x24: 1fffe0001bdbaa4d [ 49.966758][ T4536] x23: 1fffe0001bdbaa4d x22: ffff0000dedd5268 x21: 00000000fffffff4 [ 49.968063][ T4536] x20: 0000000000000051 x19: ffff0000dedd5210 x18: 0000000000000001 [ 49.969362][ T4536] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 49.970644][ T4536] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 49.971892][ T4536] x11: 0000000000000000 x10: 0000000000000000 x9 : 3ddba084a285ce00 [ 49.973159][ T4536] x8 : 3ddba084a285ce00 x7 : 0000000000000001 x6 : 0000000000000001 [ 49.974347][ T4536] x5 : ffff80001fc470d8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 49.975569][ T4536] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 49.976888][ T4536] Call trace: [ 49.977352][ T4536] btrfs_run_delayed_refs+0x3e4/0x458 [ 49.978255][ T4536] btrfs_commit_transaction+0x1e0/0x3078 [ 49.979182][ T4536] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 49.980061][ T4536] btrfs_ioctl+0x50c/0xa8c [ 49.980720][ T4536] __arm64_sys_ioctl+0x14c/0x1c8 [ 49.981572][ T4536] invoke_syscall+0x98/0x2b0 [ 49.982342][ T4536] el0_svc_common+0x138/0x258 [ 49.983080][ T4536] do_el0_svc+0x58/0x13c [ 49.983772][ T4536] el0_svc+0x78/0x1d0 [ 49.984372][ T4536] el0t_64_sync_handler+0xcc/0xe4 [ 49.985243][ T4536] el0t_64_sync+0x1a0/0x1a4 [ 49.986024][ T4536] irq event stamp: 79840 [ 49.986682][ T4536] hardirqs last enabled at (79839): [] __up_console_sem+0xb4/0xfc [ 49.988178][ T4536] hardirqs last disabled at (79840): [] el1_dbg+0x24/0x80 [ 49.989497][ T4536] softirqs last enabled at (79804): [] handle_softirqs+0xa40/0xbe4 [ 49.991018][ T4536] softirqs last disabled at (79779): [] __irq_exit_rcu+0x240/0x43c [ 49.992571][ T4536] ---[ end trace 6547c966de0c93f9 ]--- [ 49.996295][ T4536] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 49.997693][ T4536] BTRFS info (device loop0): forced readonly [ 50.201086][ T4593] loop0: detected capacity change from 0 to 32768 [ 50.232645][ T4593] BTRFS: device fsid d552757d-9c39-40e3-95f0-16d819589928 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4593) [ 50.236210][ T4593] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 50.238042][ T4593] BTRFS info (device loop0): use zlib compression, level 3 [ 50.239272][ T4593] BTRFS info (device loop0): disabling tree log [ 50.240250][ T4593] BTRFS info (device loop0): turning on sync discard [ 50.241450][ T4593] BTRFS info (device loop0): enabling ssd optimizations [ 50.248714][ T4593] BTRFS info (device loop0): using spread ssd allocation scheme [ 50.249971][ T4593] BTRFS info (device loop0): using free space tree [ 50.251072][ T4593] BTRFS info (device loop0): has skinny extents [ 50.309451][ T4593] FAULT_INJECTION: forcing a failure. [ 50.309451][ T4593] name failslab, interval 1, probability 0, space 0, times 0 [ 50.311611][ T4593] CPU: 0 PID: 4593 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 50.313089][ T4593] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 50.314692][ T4593] Call trace: [ 50.315189][ T4593] dump_backtrace+0x0/0x458 [ 50.315927][ T4593] show_stack+0x2c/0x3c [ 50.316606][ T4593] __dump_stack+0x30/0x40 [ 50.317254][ T4593] dump_stack_lvl+0xf4/0x15c [ 50.317992][ T4593] dump_stack+0x1c/0x5c [ 50.318656][ T4593] should_fail+0x3bc/0x514 [ 50.319343][ T4593] __should_failslab+0xbc/0x10c [ 50.320200][ T4593] should_failslab+0x10/0x28 [ 50.320935][ T4593] slab_pre_alloc_hook+0x64/0xe8 [ 50.321715][ T4593] kmem_cache_alloc+0x94/0x3d4 [ 50.322461][ T4593] btrfs_alloc_path+0x5c/0x68 [ 50.323162][ T4593] __btrfs_run_delayed_refs+0xe70/0x348c [ 50.324140][ T4593] btrfs_run_delayed_refs+0x124/0x458 [ 50.324993][ T4593] btrfs_commit_transaction+0x1e0/0x3078 [ 50.325876][ T4593] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 50.326833][ T4593] btrfs_ioctl+0x50c/0xa8c [ 50.327546][ T4593] __arm64_sys_ioctl+0x14c/0x1c8 [ 50.328335][ T4593] invoke_syscall+0x98/0x2b0 [ 50.329084][ T4593] el0_svc_common+0x138/0x258 [ 50.329867][ T4593] do_el0_svc+0x58/0x13c [ 50.330563][ T4593] el0_svc+0x78/0x1d0 [ 50.331187][ T4593] el0t_64_sync_handler+0xcc/0xe4 [ 50.332041][ T4593] el0t_64_sync+0x1a0/0x1a4 [ 50.351055][ T4593] BTRFS error (device loop0): failed to run delayed ref for logical 5242880 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 50.353039][ T4593] ------------[ cut here ]------------ [ 50.353978][ T4593] WARNING: CPU: 0 PID: 4593 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 50.355563][ T4593] Modules linked in: [ 50.356127][ T4593] CPU: 0 PID: 4593 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 50.357457][ T4593] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 50.359218][ T4593] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 50.360465][ T4593] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 50.361448][ T4593] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 50.362390][ T4593] sp : ffff80001fb577d0 [ 50.363064][ T4593] x29: ffff80001fb577e0 x28: ffff0000da334000 x27: dfff800000000000 [ 50.364351][ T4593] x26: ffff0000da334024 x25: ffff0000da374000 x24: 1fffe0001bdbaa79 [ 50.365636][ T4593] x23: 1fffe0001bdbaa79 x22: ffff0000dedd53c8 x21: 00000000fffffff4 [ 50.366980][ T4593] x20: 0000000000000051 x19: ffff0000dedd5370 x18: 0000000000000001 [ 50.368355][ T4593] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 50.369666][ T4593] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 50.371011][ T4593] x11: 0000000000000000 x10: 0000000000000000 x9 : a3455cd6d14f6300 [ 50.372315][ T4593] x8 : a3455cd6d14f6300 x7 : 0000000000000001 x6 : 0000000000000001 [ 50.373583][ T4593] x5 : ffff80001fb570d8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 50.374911][ T4593] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 50.376164][ T4593] Call trace: [ 50.376693][ T4593] btrfs_run_delayed_refs+0x3e4/0x458 [ 50.377565][ T4593] btrfs_commit_transaction+0x1e0/0x3078 [ 50.378526][ T4593] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 50.379438][ T4593] btrfs_ioctl+0x50c/0xa8c [ 50.380148][ T4593] __arm64_sys_ioctl+0x14c/0x1c8 [ 50.380952][ T4593] invoke_syscall+0x98/0x2b0 [ 50.381694][ T4593] el0_svc_common+0x138/0x258 [ 50.382479][ T4593] do_el0_svc+0x58/0x13c [ 50.383153][ T4593] el0_svc+0x78/0x1d0 [ 50.383773][ T4593] el0t_64_sync_handler+0xcc/0xe4 [ 50.384529][ T4593] el0t_64_sync+0x1a0/0x1a4 [ 50.385266][ T4593] irq event stamp: 81030 [ 50.385977][ T4593] hardirqs last enabled at (81029): [] __up_console_sem+0xb4/0xfc [ 50.387551][ T4593] hardirqs last disabled at (81030): [] el1_dbg+0x24/0x80 [ 50.388986][ T4593] softirqs last enabled at (80996): [] handle_softirqs+0xa40/0xbe4 [ 50.390512][ T4593] softirqs last disabled at (80977): [] __irq_exit_rcu+0x240/0x43c [ 50.392004][ T4593] ---[ end trace 6547c966de0c93fa ]--- [ 50.393842][ T4593] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 50.395437][ T4593] BTRFS info (device loop0): forced readonly [ 50.584959][ T4659] loop0: detected capacity change from 0 to 32768 [ 50.633180][ T4659] BTRFS: device fsid d552757d-9c39-40e3-95f0-16d819589928 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4659) [ 50.639049][ T4659] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 50.640565][ T4659] BTRFS info (device loop0): use zlib compression, level 3 [ 50.641789][ T4659] BTRFS info (device loop0): disabling tree log [ 50.642737][ T4659] BTRFS info (device loop0): turning on sync discard [ 50.643884][ T4659] BTRFS info (device loop0): enabling ssd optimizations [ 50.645018][ T4659] BTRFS info (device loop0): using spread ssd allocation scheme [ 50.646516][ T4659] BTRFS info (device loop0): using free space tree [ 50.647664][ T4659] BTRFS info (device loop0): has skinny extents [ 50.669548][ T4659] FAULT_INJECTION: forcing a failure. [ 50.669548][ T4659] name failslab, interval 1, probability 0, space 0, times 0 [ 50.671787][ T4659] CPU: 0 PID: 4659 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 50.673193][ T4659] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 50.674759][ T4659] Call trace: [ 50.675285][ T4659] dump_backtrace+0x0/0x458 [ 50.675994][ T4659] show_stack+0x2c/0x3c [ 50.676702][ T4659] __dump_stack+0x30/0x40 [ 50.677423][ T4659] dump_stack_lvl+0xf4/0x15c [ 50.678186][ T4659] dump_stack+0x1c/0x5c [ 50.678852][ T4659] should_fail+0x3bc/0x514 [ 50.679537][ T4659] __should_failslab+0xbc/0x10c [ 50.680326][ T4659] should_failslab+0x10/0x28 [ 50.681066][ T4659] slab_pre_alloc_hook+0x64/0xe8 [ 50.681831][ T4659] kmem_cache_alloc+0x94/0x3d4 [ 50.682582][ T4659] btrfs_alloc_path+0x5c/0x68 [ 50.683332][ T4659] __btrfs_run_delayed_refs+0xe70/0x348c [ 50.684314][ T4659] btrfs_run_delayed_refs+0x124/0x458 [ 50.685270][ T4659] btrfs_commit_transaction+0x1e0/0x3078 [ 50.686193][ T4659] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 50.687085][ T4659] btrfs_ioctl+0x50c/0xa8c [ 50.687819][ T4659] __arm64_sys_ioctl+0x14c/0x1c8 [ 50.688608][ T4659] invoke_syscall+0x98/0x2b0 [ 50.689351][ T4659] el0_svc_common+0x138/0x258 [ 50.690117][ T4659] do_el0_svc+0x58/0x13c [ 50.690794][ T4659] el0_svc+0x78/0x1d0 [ 50.691449][ T4659] el0t_64_sync_handler+0xcc/0xe4 [ 50.692325][ T4659] el0t_64_sync+0x1a0/0x1a4 [ 50.694752][ T4659] BTRFS error (device loop0): failed to run delayed ref for logical 5242880 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 50.696810][ T4659] ------------[ cut here ]------------ [ 50.697802][ T4659] WARNING: CPU: 0 PID: 4659 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 50.699425][ T4659] Modules linked in: [ 50.700031][ T4659] CPU: 0 PID: 4659 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 50.701453][ T4659] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 50.703152][ T4659] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 50.704482][ T4659] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 50.705400][ T4659] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 50.706284][ T4659] sp : ffff80001fb677d0 [ 50.706960][ T4659] x29: ffff80001fb677e0 x28: ffff0000d6c57000 x27: dfff800000000000 [ 50.708299][ T4659] x26: ffff0000d6c57024 x25: ffff0000d054c000 x24: 1fffe0001bdbaaa5 [ 50.709572][ T4659] x23: 1fffe0001bdbaaa5 x22: ffff0000dedd5528 x21: 00000000fffffff4 [ 50.710921][ T4659] x20: 0000000000000051 x19: ffff0000dedd54d0 x18: 0000000000000001 [ 50.712241][ T4659] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 50.713522][ T4659] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 50.714862][ T4659] x11: 0000000000000000 x10: 0000000000000000 x9 : 07a02db5ff7cc200 [ 50.716170][ T4659] x8 : 07a02db5ff7cc200 x7 : 0000000000000001 x6 : 0000000000000001 [ 50.717473][ T4659] x5 : ffff80001fb670d8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 50.718743][ T4659] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 50.720001][ T4659] Call trace: [ 50.720514][ T4659] btrfs_run_delayed_refs+0x3e4/0x458 [ 50.721481][ T4659] btrfs_commit_transaction+0x1e0/0x3078 [ 50.722386][ T4659] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 50.723267][ T4659] btrfs_ioctl+0x50c/0xa8c [ 50.723971][ T4659] __arm64_sys_ioctl+0x14c/0x1c8 [ 50.724720][ T4659] invoke_syscall+0x98/0x2b0 [ 50.725434][ T4659] el0_svc_common+0x138/0x258 [ 50.726188][ T4659] do_el0_svc+0x58/0x13c [ 50.726851][ T4659] el0_svc+0x78/0x1d0 [ 50.727466][ T4659] el0t_64_sync_handler+0xcc/0xe4 [ 50.728347][ T4659] el0t_64_sync+0x1a0/0x1a4 [ 50.729113][ T4659] irq event stamp: 79634 [ 50.729804][ T4659] hardirqs last enabled at (79633): [] __up_console_sem+0xb4/0xfc [ 50.731384][ T4659] hardirqs last disabled at (79634): [] el1_dbg+0x24/0x80 [ 50.732794][ T4659] softirqs last enabled at (79596): [] handle_softirqs+0xa40/0xbe4 [ 50.734342][ T4659] softirqs last disabled at (79575): [] __irq_exit_rcu+0x240/0x43c [ 50.735947][ T4659] ---[ end trace 6547c966de0c93fb ]--- [ 50.740445][ T4659] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 50.742079][ T4659] BTRFS info (device loop0): forced readonly [ 50.920443][ T4693] loop0: detected capacity change from 0 to 32768 [ 50.968577][ T4693] BTRFS: device fsid d552757d-9c39-40e3-95f0-16d819589928 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4693) [ 50.972889][ T4693] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 50.974442][ T4693] BTRFS info (device loop0): use zlib compression, level 3 [ 50.975645][ T4693] BTRFS info (device loop0): disabling tree log [ 50.976617][ T4693] BTRFS info (device loop0): turning on sync discard [ 50.978569][ T4693] BTRFS info (device loop0): enabling ssd optimizations [ 50.979785][ T4693] BTRFS info (device loop0): using spread ssd allocation scheme [ 50.981128][ T4693] BTRFS info (device loop0): using free space tree [ 50.982292][ T4693] BTRFS info (device loop0): has skinny extents [ 50.994097][ T4693] FAULT_INJECTION: forcing a failure. [ 50.994097][ T4693] name failslab, interval 1, probability 0, space 0, times 0 [ 50.996492][ T4693] CPU: 1 PID: 4693 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 50.997996][ T4693] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 50.999683][ T4693] Call trace: [ 51.000212][ T4693] dump_backtrace+0x0/0x458 [ 51.000935][ T4693] show_stack+0x2c/0x3c [ 51.001563][ T4693] __dump_stack+0x30/0x40 [ 51.002365][ T4693] dump_stack_lvl+0xf4/0x15c [ 51.003157][ T4693] dump_stack+0x1c/0x5c [ 51.003820][ T4693] should_fail+0x3bc/0x514 [ 51.004508][ T4693] __should_failslab+0xbc/0x10c [ 51.005269][ T4693] should_failslab+0x10/0x28 [ 51.006045][ T4693] slab_pre_alloc_hook+0x64/0xe8 [ 51.006852][ T4693] kmem_cache_alloc+0x94/0x3d4 [ 51.007618][ T4693] btrfs_alloc_path+0x5c/0x68 [ 51.008380][ T4693] __btrfs_free_extent+0x1a8/0x1abc [ 51.009238][ T4693] __btrfs_run_delayed_refs+0xbf0/0x348c [ 51.010179][ T4693] btrfs_run_delayed_refs+0x124/0x458 [ 51.011104][ T4693] btrfs_commit_transaction+0x1e0/0x3078 [ 51.012007][ T4693] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 51.012875][ T4693] btrfs_ioctl+0x50c/0xa8c [ 51.013595][ T4693] __arm64_sys_ioctl+0x14c/0x1c8 [ 51.014390][ T4693] invoke_syscall+0x98/0x2b0 [ 51.015143][ T4693] el0_svc_common+0x138/0x258 [ 51.015949][ T4693] do_el0_svc+0x58/0x13c [ 51.016709][ T4693] el0_svc+0x78/0x1d0 [ 51.017381][ T4693] el0t_64_sync_handler+0xcc/0xe4 [ 51.018263][ T4693] el0t_64_sync+0x1a0/0x1a4 [ 51.020754][ T4693] BTRFS error (device loop0): failed to run delayed ref for logical 5255168 num_bytes 4096 type 176 action 2 ref_mod 1: -12 [ 51.022939][ T4693] ------------[ cut here ]------------ [ 51.023947][ T4693] WARNING: CPU: 1 PID: 4693 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 51.025603][ T4693] Modules linked in: [ 51.026262][ T4693] CPU: 1 PID: 4693 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 51.027733][ T4693] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 51.029259][ T4693] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 51.030450][ T4693] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 51.031318][ T4693] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 51.032349][ T4693] sp : ffff80001fb677d0 [ 51.033101][ T4693] x29: ffff80001fb677e0 x28: ffff0000c299c000 x27: dfff800000000000 [ 51.034438][ T4693] x26: ffff0000c299c024 x25: ffff0000dae78000 x24: 1fffe0001bd9464d [ 51.035812][ T4693] x23: 1fffe0001bd9464d x22: ffff0000deca3268 x21: 00000000fffffff4 [ 51.037136][ T4693] x20: 0000000000000051 x19: ffff0000deca3210 x18: 0000000000000001 [ 51.038526][ T4693] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 51.039908][ T4693] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 51.041255][ T4693] x11: 0000000000000000 x10: 0000000000000000 x9 : cde2e4555a15a600 [ 51.042579][ T4693] x8 : cde2e4555a15a600 x7 : 0000000000000001 x6 : 0000000000000001 [ 51.043892][ T4693] x5 : ffff80001fb670d8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 51.045215][ T4693] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 51.046607][ T4693] Call trace: [ 51.047137][ T4693] btrfs_run_delayed_refs+0x3e4/0x458 [ 51.048014][ T4693] btrfs_commit_transaction+0x1e0/0x3078 [ 51.048925][ T4693] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 51.049886][ T4693] btrfs_ioctl+0x50c/0xa8c [ 51.050621][ T4693] __arm64_sys_ioctl+0x14c/0x1c8 [ 51.051427][ T4693] invoke_syscall+0x98/0x2b0 [ 51.052156][ T4693] el0_svc_common+0x138/0x258 [ 51.052921][ T4693] do_el0_svc+0x58/0x13c [ 51.053575][ T4693] el0_svc+0x78/0x1d0 [ 51.054283][ T4693] el0t_64_sync_handler+0xcc/0xe4 [ 51.055135][ T4693] el0t_64_sync+0x1a0/0x1a4 [ 51.055879][ T4693] irq event stamp: 79716 [ 51.056537][ T4693] hardirqs last enabled at (79715): [] __up_console_sem+0xb4/0xfc [ 51.058036][ T4693] hardirqs last disabled at (79716): [] el1_dbg+0x24/0x80 [ 51.059398][ T4693] softirqs last enabled at (79676): [] handle_softirqs+0xa40/0xbe4 [ 51.060932][ T4693] softirqs last disabled at (79623): [] __irq_exit_rcu+0x240/0x43c [ 51.062436][ T4693] ---[ end trace 6547c966de0c93fc ]--- [ 51.064801][ T4693] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 51.066486][ T4693] BTRFS info (device loop0): forced readonly [ 51.258178][ T4715] loop0: detected capacity change from 0 to 32768 [ 51.303916][ T4715] BTRFS: device fsid d552757d-9c39-40e3-95f0-16d819589928 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4715) [ 51.307039][ T4715] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 51.308916][ T4715] BTRFS info (device loop0): use zlib compression, level 3 [ 51.310844][ T4715] BTRFS info (device loop0): disabling tree log [ 51.311820][ T4715] BTRFS info (device loop0): turning on sync discard [ 51.312989][ T4715] BTRFS info (device loop0): enabling ssd optimizations [ 51.314176][ T4715] BTRFS info (device loop0): using spread ssd allocation scheme [ 51.315462][ T4715] BTRFS info (device loop0): using free space tree [ 51.316643][ T4715] BTRFS info (device loop0): has skinny extents [ 51.328269][ T4715] FAULT_INJECTION: forcing a failure. [ 51.328269][ T4715] name failslab, interval 1, probability 0, space 0, times 0 [ 51.330685][ T4715] CPU: 0 PID: 4715 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 51.332074][ T4715] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 51.333659][ T4715] Call trace: [ 51.334233][ T4715] dump_backtrace+0x0/0x458 [ 51.334916][ T4715] show_stack+0x2c/0x3c [ 51.335571][ T4715] __dump_stack+0x30/0x40 [ 51.336290][ T4715] dump_stack_lvl+0xf4/0x15c [ 51.336988][ T4715] dump_stack+0x1c/0x5c [ 51.337628][ T4715] should_fail+0x3bc/0x514 [ 51.338394][ T4715] __should_failslab+0xbc/0x10c [ 51.339211][ T4715] should_failslab+0x10/0x28 [ 51.339970][ T4715] slab_pre_alloc_hook+0x64/0xe8 [ 51.340761][ T4715] kmem_cache_alloc+0x94/0x3d4 [ 51.341557][ T4715] btrfs_alloc_path+0x5c/0x68 [ 51.342372][ T4715] __btrfs_free_extent+0x1a8/0x1abc [ 51.343239][ T4715] __btrfs_run_delayed_refs+0xbf0/0x348c [ 51.344156][ T4715] btrfs_run_delayed_refs+0x124/0x458 [ 51.345029][ T4715] btrfs_commit_transaction+0x1e0/0x3078 [ 51.345935][ T4715] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 51.346875][ T4715] btrfs_ioctl+0x50c/0xa8c [ 51.347596][ T4715] __arm64_sys_ioctl+0x14c/0x1c8 [ 51.348378][ T4715] invoke_syscall+0x98/0x2b0 [ 51.349143][ T4715] el0_svc_common+0x138/0x258 [ 51.349973][ T4715] do_el0_svc+0x58/0x13c [ 51.350650][ T4715] el0_svc+0x78/0x1d0 [ 51.351345][ T4715] el0t_64_sync_handler+0xcc/0xe4 [ 51.352111][ T4715] el0t_64_sync+0x1a0/0x1a4 [ 51.353766][ T4715] BTRFS error (device loop0): failed to run delayed ref for logical 5255168 num_bytes 4096 type 176 action 2 ref_mod 1: -12 [ 51.355789][ T4715] ------------[ cut here ]------------ [ 51.356679][ T4715] WARNING: CPU: 0 PID: 4715 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 51.358256][ T4715] Modules linked in: [ 51.358856][ T4715] CPU: 0 PID: 4715 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 51.360182][ T4715] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 51.361729][ T4715] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 51.362927][ T4715] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 51.363839][ T4715] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 51.364749][ T4715] sp : ffff80001fc177d0 [ 51.365387][ T4715] x29: ffff80001fc177e0 x28: ffff0000c8bdb000 x27: dfff800000000000 [ 51.366605][ T4715] x26: ffff0000c8bdb024 x25: ffff0000d1c54000 x24: 1fffe0001bdbaad1 [ 51.367987][ T4715] x23: 1fffe0001bdbaad1 x22: ffff0000dedd5688 x21: 00000000fffffff4 [ 51.369270][ T4715] x20: 0000000000000051 x19: ffff0000dedd5630 x18: 0000000000000001 [ 51.370539][ T4715] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 51.371925][ T4715] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 51.373332][ T4715] x11: 0000000000000000 x10: 0000000000000000 x9 : 574eee72cfb31e00 [ 51.374673][ T4715] x8 : 574eee72cfb31e00 x7 : 0000000000000001 x6 : 0000000000000001 [ 51.375991][ T4715] x5 : ffff80001fc170d8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 51.377342][ T4715] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 51.378656][ T4715] Call trace: [ 51.379159][ T4715] btrfs_run_delayed_refs+0x3e4/0x458 [ 51.380012][ T4715] btrfs_commit_transaction+0x1e0/0x3078 [ 51.380952][ T4715] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 51.381876][ T4715] btrfs_ioctl+0x50c/0xa8c [ 51.382611][ T4715] __arm64_sys_ioctl+0x14c/0x1c8 [ 51.383456][ T4715] invoke_syscall+0x98/0x2b0 [ 51.384251][ T4715] el0_svc_common+0x138/0x258 [ 51.385054][ T4715] do_el0_svc+0x58/0x13c [ 51.385754][ T4715] el0_svc+0x78/0x1d0 [ 51.386353][ T4715] el0t_64_sync_handler+0xcc/0xe4 [ 51.387154][ T4715] el0t_64_sync+0x1a0/0x1a4 [ 51.387883][ T4715] irq event stamp: 79542 [ 51.388610][ T4715] hardirqs last enabled at (79541): [] __up_console_sem+0xb4/0xfc [ 51.390092][ T4715] hardirqs last disabled at (79542): [] el1_dbg+0x24/0x80 [ 51.391566][ T4715] softirqs last enabled at (79506): [] handle_softirqs+0xa40/0xbe4 [ 51.393015][ T4715] softirqs last disabled at (79449): [] __irq_exit_rcu+0x240/0x43c [ 51.394468][ T4715] ---[ end trace 6547c966de0c93fd ]--- [ 51.396308][ T4715] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 51.398051][ T4715] BTRFS info (device loop0): forced readonly [ 51.571344][ T4737] loop0: detected capacity change from 0 to 32768 [ 51.625939][ T4737] BTRFS: device fsid d552757d-9c39-40e3-95f0-16d819589928 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4737) [ 51.632425][ T4737] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 51.633863][ T4737] BTRFS info (device loop0): use zlib compression, level 3 [ 51.634853][ T4737] BTRFS info (device loop0): disabling tree log [ 51.635790][ T4737] BTRFS info (device loop0): turning on sync discard [ 51.636841][ T4737] BTRFS info (device loop0): enabling ssd optimizations [ 51.638115][ T4737] BTRFS info (device loop0): using spread ssd allocation scheme [ 51.639233][ T4737] BTRFS info (device loop0): using free space tree [ 51.640257][ T4737] BTRFS info (device loop0): has skinny extents [ 51.651475][ T4737] FAULT_INJECTION: forcing a failure. [ 51.651475][ T4737] name failslab, interval 1, probability 0, space 0, times 0 [ 51.653740][ T4737] CPU: 1 PID: 4737 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 51.655175][ T4737] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 51.656864][ T4737] Call trace: [ 51.657454][ T4737] dump_backtrace+0x0/0x458 [ 51.658202][ T4737] show_stack+0x2c/0x3c [ 51.658880][ T4737] __dump_stack+0x30/0x40 [ 51.659580][ T4737] dump_stack_lvl+0xf4/0x15c [ 51.660381][ T4737] dump_stack+0x1c/0x5c [ 51.661025][ T4737] should_fail+0x3bc/0x514 [ 51.661746][ T4737] __should_failslab+0xbc/0x10c [ 51.662579][ T4737] should_failslab+0x10/0x28 [ 51.663426][ T4737] slab_pre_alloc_hook+0x64/0xe8 [ 51.664272][ T4737] kmem_cache_alloc+0x94/0x3d4 [ 51.665034][ T4737] btrfs_alloc_path+0x5c/0x68 [ 51.665829][ T4737] __btrfs_free_extent+0x1a8/0x1abc [ 51.666715][ T4737] __btrfs_run_delayed_refs+0xbf0/0x348c [ 51.667612][ T4737] btrfs_run_delayed_refs+0x124/0x458 [ 51.668538][ T4737] btrfs_commit_transaction+0x1e0/0x3078 [ 51.669458][ T4737] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 51.670430][ T4737] btrfs_ioctl+0x50c/0xa8c [ 51.671156][ T4737] __arm64_sys_ioctl+0x14c/0x1c8 [ 51.671947][ T4737] invoke_syscall+0x98/0x2b0 [ 51.672681][ T4737] el0_svc_common+0x138/0x258 [ 51.673451][ T4737] do_el0_svc+0x58/0x13c [ 51.674149][ T4737] el0_svc+0x78/0x1d0 [ 51.674870][ T4737] el0t_64_sync_handler+0xcc/0xe4 [ 51.675673][ T4737] el0t_64_sync+0x1a0/0x1a4 [ 51.678553][ T4737] BTRFS error (device loop0): failed to run delayed ref for logical 5255168 num_bytes 4096 type 176 action 2 ref_mod 1: -12 [ 51.680723][ T4737] ------------[ cut here ]------------ [ 51.681780][ T4737] WARNING: CPU: 0 PID: 4737 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 51.683384][ T4737] Modules linked in: [ 51.684252][ T4737] CPU: 0 PID: 4737 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 51.685762][ T4737] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 51.687456][ T4737] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 51.688765][ T4737] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 51.689703][ T4737] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 51.690583][ T4737] sp : ffff80001f6a77d0 [ 51.691212][ T4737] x29: ffff80001f6a77e0 x28: ffff0000d6f88000 x27: dfff800000000000 [ 51.692562][ T4737] x26: ffff0000d6f88024 x25: ffff0000d9140000 x24: 1fffe0001bd94663 [ 51.693835][ T4737] x23: 1fffe0001bd94663 x22: ffff0000deca3318 x21: 00000000fffffff4 [ 51.695055][ T4737] x20: 0000000000000051 x19: ffff0000deca32c0 x18: 0000000000000001 [ 51.696422][ T4737] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 51.697827][ T4737] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 51.699234][ T4737] x11: 0000000000000000 x10: 0000000000000000 x9 : ebec9eedab489600 [ 51.700535][ T4737] x8 : ebec9eedab489600 x7 : 0000000000000001 x6 : 0000000000000001 [ 51.701847][ T4737] x5 : ffff80001f6a70d8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 51.703147][ T4737] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 51.704493][ T4737] Call trace: [ 51.705008][ T4737] btrfs_run_delayed_refs+0x3e4/0x458 [ 51.705906][ T4737] btrfs_commit_transaction+0x1e0/0x3078 [ 51.706864][ T4737] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 51.707773][ T4737] btrfs_ioctl+0x50c/0xa8c [ 51.708473][ T4737] __arm64_sys_ioctl+0x14c/0x1c8 [ 51.709288][ T4737] invoke_syscall+0x98/0x2b0 [ 51.710050][ T4737] el0_svc_common+0x138/0x258 [ 51.710819][ T4737] do_el0_svc+0x58/0x13c [ 51.711545][ T4737] el0_svc+0x78/0x1d0 [ 51.712204][ T4737] el0t_64_sync_handler+0xcc/0xe4 [ 51.713008][ T4737] el0t_64_sync+0x1a0/0x1a4 [ 51.713743][ T4737] irq event stamp: 79088 [ 51.714448][ T4737] hardirqs last enabled at (79087): [] __up_console_sem+0xb4/0xfc [ 51.716032][ T4737] hardirqs last disabled at (79088): [] el1_dbg+0x24/0x80 [ 51.717445][ T4737] softirqs last enabled at (79056): [] handle_softirqs+0xa40/0xbe4 [ 51.719024][ T4737] softirqs last disabled at (79007): [] __irq_exit_rcu+0x240/0x43c [ 51.720579][ T4737] ---[ end trace 6547c966de0c93fe ]--- [ 51.721908][ T4737] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 51.723442][ T4737] BTRFS info (device loop0): forced readonly [ 51.862364][ T4760] loop0: detected capacity change from 0 to 32768 [ 51.870198][ T4760] BTRFS: device fsid d552757d-9c39-40e3-95f0-16d819589928 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4760) [ 51.875109][ T4760] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 51.876669][ T4760] BTRFS info (device loop0): use zlib compression, level 3 [ 51.878444][ T4760] BTRFS info (device loop0): disabling tree log [ 51.879566][ T4760] BTRFS info (device loop0): turning on sync discard [ 51.880836][ T4760] BTRFS info (device loop0): enabling ssd optimizations [ 51.882069][ T4760] BTRFS info (device loop0): using spread ssd allocation scheme [ 51.883445][ T4760] BTRFS info (device loop0): using free space tree [ 51.884664][ T4760] BTRFS info (device loop0): has skinny extents [ 51.899273][ T4760] FAULT_INJECTION: forcing a failure. [ 51.899273][ T4760] name failslab, interval 1, probability 0, space 0, times 0 [ 51.901681][ T4760] CPU: 0 PID: 4760 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 51.903295][ T4760] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 51.904957][ T4760] Call trace: [ 51.905536][ T4760] dump_backtrace+0x0/0x458 [ 51.906339][ T4760] show_stack+0x2c/0x3c [ 51.906981][ T4760] __dump_stack+0x30/0x40 [ 51.907672][ T4760] dump_stack_lvl+0xf4/0x15c [ 51.908405][ T4760] dump_stack+0x1c/0x5c [ 51.909073][ T4760] should_fail+0x3bc/0x514 [ 51.909788][ T4760] __should_failslab+0xbc/0x10c [ 51.910591][ T4760] should_failslab+0x10/0x28 [ 51.911381][ T4760] slab_pre_alloc_hook+0x64/0xe8 [ 51.912171][ T4760] kmem_cache_alloc+0x94/0x3d4 [ 51.912945][ T4760] start_transaction+0x4d0/0x13ec [ 51.913748][ T4760] btrfs_start_transaction+0x34/0x44 [ 51.914665][ T4760] btrfs_ioctl_set_fslabel+0x2bc/0x3d0 [ 51.915575][ T4760] btrfs_ioctl+0x50c/0xa8c [ 51.916319][ T4760] __arm64_sys_ioctl+0x14c/0x1c8 [ 51.917134][ T4760] invoke_syscall+0x98/0x2b0 [ 51.917866][ T4760] el0_svc_common+0x138/0x258 [ 51.918688][ T4760] do_el0_svc+0x58/0x13c [ 51.919425][ T4760] el0_svc+0x78/0x1d0 [ 51.920096][ T4760] el0t_64_sync_handler+0xcc/0xe4 [ 51.920930][ T4760] el0t_64_sync+0x1a0/0x1a4 [ 51.928335][ T21] Bluetooth: hci0: command 0x041b tx timeout [ 52.074170][ T4782] loop0: detected capacity change from 0 to 32768 [ 52.109624][ T4782] BTRFS: device fsid d552757d-9c39-40e3-95f0-16d819589928 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4782) [ 52.154037][ T4782] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 52.155743][ T4782] BTRFS info (device loop0): use zlib compression, level 3 [ 52.156992][ T4782] BTRFS info (device loop0): disabling tree log [ 52.158929][ T4782] BTRFS info (device loop0): turning on sync discard [ 52.161693][ T4782] BTRFS info (device loop0): enabling ssd optimizations [ 52.162901][ T4782] BTRFS info (device loop0): using spread ssd allocation scheme [ 52.165473][ T4782] BTRFS info (device loop0): using free space tree [ 52.166598][ T4782] BTRFS info (device loop0): has skinny extents [ 52.229376][ T4782] FAULT_INJECTION: forcing a failure. [ 52.229376][ T4782] name failslab, interval 1, probability 0, space 0, times 0 [ 52.231922][ T4782] CPU: 1 PID: 4782 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 52.233217][ T4782] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 52.234884][ T4782] Call trace: [ 52.235398][ T4782] dump_backtrace+0x0/0x458 [ 52.236149][ T4782] show_stack+0x2c/0x3c [ 52.236764][ T4782] __dump_stack+0x30/0x40 [ 52.237432][ T4782] dump_stack_lvl+0xf4/0x15c [ 52.238112][ T4782] dump_stack+0x1c/0x5c [ 52.238738][ T4782] should_fail+0x3bc/0x514 [ 52.239496][ T4782] __should_failslab+0xbc/0x10c [ 52.240319][ T4782] should_failslab+0x10/0x28 [ 52.241058][ T4782] slab_pre_alloc_hook+0x64/0xe8 [ 52.241933][ T4782] kmem_cache_alloc+0x94/0x3d4 [ 52.242798][ T4782] btrfs_alloc_path+0x5c/0x68 [ 52.243610][ T4782] __btrfs_free_extent+0x1a8/0x1abc [ 52.244434][ T4782] __btrfs_run_delayed_refs+0xbf0/0x348c [ 52.245377][ T4782] btrfs_run_delayed_refs+0x124/0x458 [ 52.246231][ T4782] btrfs_commit_transaction+0x1e0/0x3078 [ 52.247145][ T4782] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 52.248081][ T4782] btrfs_ioctl+0x50c/0xa8c [ 52.248770][ T4782] __arm64_sys_ioctl+0x14c/0x1c8 [ 52.249536][ T4782] invoke_syscall+0x98/0x2b0 [ 52.250283][ T4782] el0_svc_common+0x138/0x258 [ 52.251023][ T4782] do_el0_svc+0x58/0x13c [ 52.251687][ T4782] el0_svc+0x78/0x1d0 [ 52.252312][ T4782] el0t_64_sync_handler+0xcc/0xe4 [ 52.253120][ T4782] el0t_64_sync+0x1a0/0x1a4 [ 52.257920][ T4782] BTRFS error (device loop0): failed to run delayed ref for logical 5255168 num_bytes 4096 type 176 action 2 ref_mod 1: -12 [ 52.260161][ T4782] ------------[ cut here ]------------ [ 52.261123][ T4782] WARNING: CPU: 0 PID: 4782 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 52.262786][ T4782] Modules linked in: [ 52.263389][ T4782] CPU: 0 PID: 4782 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 52.264845][ T4782] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 52.266322][ T4782] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 52.267460][ T4782] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 52.268337][ T4782] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 52.269351][ T4782] sp : ffff8000200b77d0 [ 52.270078][ T4782] x29: ffff8000200b77e0 x28: ffff0000c8a54000 x27: dfff800000000000 [ 52.271453][ T4782] x26: ffff0000c8a54024 x25: ffff0000d0298000 x24: 1fffe0001bd946a5 [ 52.272805][ T4782] x23: 1fffe0001bd946a5 x22: ffff0000deca3528 x21: 00000000fffffff4 [ 52.274147][ T4782] x20: 0000000000000051 x19: ffff0000deca34d0 x18: 0000000000000001 [ 52.275511][ T4782] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 52.276811][ T4782] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 52.278046][ T4782] x11: 0000000000000000 x10: 0000000000000000 x9 : 74f4ba811f34b200 [ 52.279258][ T4782] x8 : 74f4ba811f34b200 x7 : 0000000000000001 x6 : 0000000000000001 [ 52.280644][ T4782] x5 : ffff8000200b70d8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 52.281930][ T4782] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 52.283227][ T4782] Call trace: [ 52.283748][ T4782] btrfs_run_delayed_refs+0x3e4/0x458 [ 52.284680][ T4782] btrfs_commit_transaction+0x1e0/0x3078 [ 52.285612][ T4782] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 52.286523][ T4782] btrfs_ioctl+0x50c/0xa8c [ 52.287228][ T4782] __arm64_sys_ioctl+0x14c/0x1c8 [ 52.288054][ T4782] invoke_syscall+0x98/0x2b0 [ 52.288793][ T4782] el0_svc_common+0x138/0x258 [ 52.289523][ T4782] do_el0_svc+0x58/0x13c [ 52.290207][ T4782] el0_svc+0x78/0x1d0 [ 52.290855][ T4782] el0t_64_sync_handler+0xcc/0xe4 [ 52.291671][ T4782] el0t_64_sync+0x1a0/0x1a4 [ 52.292370][ T4782] irq event stamp: 79706 [ 52.293044][ T4782] hardirqs last enabled at (79705): [] __up_console_sem+0xb4/0xfc [ 52.294568][ T4782] hardirqs last disabled at (79706): [] el1_dbg+0x24/0x80 [ 52.295860][ T4782] softirqs last enabled at (79674): [] handle_softirqs+0xa40/0xbe4 [ 52.297357][ T4782] softirqs last disabled at (79629): [] __irq_exit_rcu+0x240/0x43c [ 52.298880][ T4782] ---[ end trace 6547c966de0c93ff ]--- [ 52.301098][ T4782] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 52.302514][ T4782] BTRFS info (device loop0): forced readonly [ 52.513623][ T4804] BTRFS: device fsid d552757d-9c39-40e3-95f0-16d819589928 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4804) [ 52.517933][ T4804] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 52.519417][ T4804] BTRFS info (device loop0): use zlib compression, level 3 [ 52.520780][ T4804] BTRFS info (device loop0): disabling tree log [ 52.521692][ T4804] BTRFS info (device loop0): turning on sync discard [ 52.522823][ T4804] BTRFS info (device loop0): enabling ssd optimizations [ 52.523991][ T4804] BTRFS info (device loop0): using spread ssd allocation scheme [ 52.525267][ T4804] BTRFS info (device loop0): using free space tree [ 52.526487][ T4804] BTRFS info (device loop0): has skinny extents [ 52.537398][ T4804] FAULT_INJECTION: forcing a failure. [ 52.537398][ T4804] name failslab, interval 1, probability 0, space 0, times 0 [ 52.539668][ T4804] CPU: 0 PID: 4804 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 52.541184][ T4804] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 52.542888][ T4804] Call trace: [ 52.543416][ T4804] dump_backtrace+0x0/0x458 [ 52.544173][ T4804] show_stack+0x2c/0x3c [ 52.544818][ T4804] __dump_stack+0x30/0x40 [ 52.545507][ T4804] dump_stack_lvl+0xf4/0x15c [ 52.546226][ T4804] dump_stack+0x1c/0x5c [ 52.546938][ T4804] should_fail+0x3bc/0x514 [ 52.547636][ T4804] __should_failslab+0xbc/0x10c [ 52.548400][ T4804] should_failslab+0x10/0x28 [ 52.549133][ T4804] slab_pre_alloc_hook+0x64/0xe8 [ 52.549979][ T4804] kmem_cache_alloc+0x94/0x3d4 [ 52.550768][ T4804] btrfs_alloc_path+0x5c/0x68 [ 52.551564][ T4804] __btrfs_free_extent+0x1a8/0x1abc [ 52.552480][ T4804] __btrfs_run_delayed_refs+0xbf0/0x348c [ 52.553378][ T4804] btrfs_run_delayed_refs+0x124/0x458 [ 52.554194][ T4804] btrfs_commit_transaction+0x1e0/0x3078 [ 52.555099][ T4804] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 52.556020][ T4804] btrfs_ioctl+0x50c/0xa8c [ 52.556782][ T4804] __arm64_sys_ioctl+0x14c/0x1c8 [ 52.557569][ T4804] invoke_syscall+0x98/0x2b0 [ 52.558299][ T4804] el0_svc_common+0x138/0x258 [ 52.559046][ T4804] do_el0_svc+0x58/0x13c [ 52.559723][ T4804] el0_svc+0x78/0x1d0 [ 52.560362][ T4804] el0t_64_sync_handler+0xcc/0xe4 [ 52.561176][ T4804] el0t_64_sync+0x1a0/0x1a4 [ 52.563073][ T4804] BTRFS error (device loop0): failed to run delayed ref for logical 5255168 num_bytes 4096 type 176 action 2 ref_mod 1: -12 [ 52.565150][ T4804] ------------[ cut here ]------------ [ 52.566128][ T4804] WARNING: CPU: 0 PID: 4804 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 52.567831][ T4804] Modules linked in: [ 52.568462][ T4804] CPU: 0 PID: 4804 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 52.569900][ T4804] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 52.571568][ T4804] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 52.572850][ T4804] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 52.573771][ T4804] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 52.574653][ T4804] sp : ffff8000201a77d0 [ 52.575348][ T4804] x29: ffff8000201a77e0 x28: ffff0000cda2b000 x27: dfff800000000000 [ 52.576688][ T4804] x26: ffff0000cda2b024 x25: ffff0000d51c4000 x24: 1fffe0001bdbab29 [ 52.578034][ T4804] x23: 1fffe0001bdbab29 x22: ffff0000dedd5948 x21: 00000000fffffff4 [ 52.579379][ T4804] x20: 0000000000000051 x19: ffff0000dedd58f0 x18: 0000000000000001 [ 52.580663][ T4804] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 52.581837][ T4804] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 52.583028][ T4804] x11: 0000000000000000 x10: 0000000000000000 x9 : fd28d988cbce1100 [ 52.584414][ T4804] x8 : fd28d988cbce1100 x7 : 0000000000000001 x6 : 0000000000000001 [ 52.585810][ T4804] x5 : ffff8000201a70d8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 52.587112][ T4804] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 52.588443][ T4804] Call trace: [ 52.589000][ T4804] btrfs_run_delayed_refs+0x3e4/0x458 [ 52.589925][ T4804] btrfs_commit_transaction+0x1e0/0x3078 [ 52.590931][ T4804] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 52.591885][ T4804] btrfs_ioctl+0x50c/0xa8c [ 52.592643][ T4804] __arm64_sys_ioctl+0x14c/0x1c8 [ 52.593446][ T4804] invoke_syscall+0x98/0x2b0 [ 52.594199][ T4804] el0_svc_common+0x138/0x258 [ 52.594945][ T4804] do_el0_svc+0x58/0x13c [ 52.595650][ T4804] el0_svc+0x78/0x1d0 [ 52.596319][ T4804] el0t_64_sync_handler+0xcc/0xe4 [ 52.597117][ T4804] el0t_64_sync+0x1a0/0x1a4 [ 52.597804][ T4804] irq event stamp: 78904 [ 52.598465][ T4804] hardirqs last enabled at (78903): [] __up_console_sem+0xb4/0xfc [ 52.599951][ T4804] hardirqs last disabled at (78904): [] el1_dbg+0x24/0x80 [ 52.601333][ T4804] softirqs last enabled at (78868): [] handle_softirqs+0xa40/0xbe4 [ 52.602916][ T4804] softirqs last disabled at (78815): [] __irq_exit_rcu+0x240/0x43c [ 52.604487][ T4804] ---[ end trace 6547c966de0c9400 ]--- [ 52.606679][ T4804] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 52.608154][ T4804] BTRFS info (device loop0): forced readonly [ 52.804929][ T4826] BTRFS: device fsid d552757d-9c39-40e3-95f0-16d819589928 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4826) [ 52.808760][ T4826] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 52.810278][ T4826] BTRFS info (device loop0): use zlib compression, level 3 [ 52.822010][ T4826] FAULT_INJECTION: forcing a failure. [ 52.822010][ T4826] name failslab, interval 1, probability 0, space 0, times 0 [ 52.823880][ T4826] CPU: 0 PID: 4826 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 52.825236][ T4826] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 52.826783][ T4826] Call trace: [ 52.827272][ T4826] dump_backtrace+0x0/0x458 [ 52.827984][ T4826] show_stack+0x2c/0x3c [ 52.828631][ T4826] __dump_stack+0x30/0x40 [ 52.829314][ T4826] dump_stack_lvl+0xf4/0x15c [ 52.830032][ T4826] dump_stack+0x1c/0x5c [ 52.830711][ T4826] should_fail+0x3bc/0x514 [ 52.831423][ T4826] __should_failslab+0xbc/0x10c [ 52.832266][ T4826] should_failslab+0x10/0x28 [ 52.832960][ T4826] slab_pre_alloc_hook+0x64/0xe8 [ 52.833717][ T4826] kmem_cache_alloc+0x94/0x3d4 [ 52.834474][ T4826] btrfs_alloc_path+0x5c/0x68 [ 52.835183][ T4826] __btrfs_free_extent+0x1a8/0x1abc [ 52.836027][ T4826] __btrfs_run_delayed_refs+0xbf0/0x348c [ 52.836952][ T4826] btrfs_run_delayed_refs+0x124/0x458 [ 52.837952][ T4826] btrfs_commit_transaction+0x1e0/0x3078 [ 52.838827][ T4826] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 52.839646][ T4826] btrfs_ioctl+0x50c/0xa8c [ 52.840389][ T4826] __arm64_sys_ioctl+0x14c/0x1c8 [ 52.841222][ T4826] invoke_syscall+0x98/0x2b0 [ 52.841963][ T4826] el0_svc_common+0x138/0x258 [ 52.842766][ T4826] do_el0_svc+0x58/0x13c [ 52.843455][ T4826] el0_svc+0x78/0x1d0 [ 52.844120][ T4826] el0t_64_sync_handler+0xcc/0xe4 [ 52.845004][ T4826] el0t_64_sync+0x1a0/0x1a4 [ 52.847491][ T4826] BTRFS error (device loop0): failed to run delayed ref for logical 5255168 num_bytes 4096 type 176 action 2 ref_mod 1: -12 [ 52.849800][ T4826] ------------[ cut here ]------------ [ 52.850737][ T4826] WARNING: CPU: 0 PID: 4826 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 52.852286][ T4826] Modules linked in: [ 52.852957][ T4826] CPU: 0 PID: 4826 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 52.854455][ T4826] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 52.855984][ T4826] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 52.857339][ T4826] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 52.858276][ T4826] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 52.859301][ T4826] sp : ffff8000201a77d0 [ 52.860090][ T4826] x29: ffff8000201a77e0 x28: ffff0000c8603000 x27: dfff800000000000 [ 52.861447][ T4826] x26: ffff0000c8603024 x25: ffff0000d51c4000 x24: 1fffe0001bdbab3f [ 52.862766][ T4826] x23: 1fffe0001bdbab3f x22: ffff0000dedd59f8 x21: 00000000fffffff4 [ 52.864109][ T4826] x20: 0000000000000051 x19: ffff0000dedd59a0 x18: 0000000000000001 [ 52.865419][ T4826] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 52.866821][ T4826] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 52.868129][ T4826] x11: 0000000000000000 x10: 0000000000000000 x9 : 43dacfc9c78fcb00 [ 52.869449][ T4826] x8 : 43dacfc9c78fcb00 x7 : 0000000000000001 x6 : 0000000000000001 [ 52.870825][ T4826] x5 : ffff8000201a70d8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 52.872269][ T4826] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 52.873604][ T4826] Call trace: [ 52.874184][ T4826] btrfs_run_delayed_refs+0x3e4/0x458 [ 52.875145][ T4826] btrfs_commit_transaction+0x1e0/0x3078 [ 52.876098][ T4826] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 52.876975][ T4826] btrfs_ioctl+0x50c/0xa8c [ 52.877730][ T4826] __arm64_sys_ioctl+0x14c/0x1c8 [ 52.878586][ T4826] invoke_syscall+0x98/0x2b0 [ 52.879301][ T4826] el0_svc_common+0x138/0x258 [ 52.880065][ T4826] do_el0_svc+0x58/0x13c [ 52.880768][ T4826] el0_svc+0x78/0x1d0 [ 52.881374][ T4826] el0t_64_sync_handler+0xcc/0xe4 [ 52.882197][ T4826] el0t_64_sync+0x1a0/0x1a4 [ 52.882974][ T4826] irq event stamp: 79624 [ 52.883689][ T4826] hardirqs last enabled at (79623): [] __up_console_sem+0xb4/0xfc [ 52.885199][ T4826] hardirqs last disabled at (79624): [] el1_dbg+0x24/0x80 [ 52.886575][ T4826] softirqs last enabled at (79604): [] handle_softirqs+0xa40/0xbe4 [ 52.888155][ T4826] softirqs last disabled at (79569): [] __irq_exit_rcu+0x240/0x43c [ 52.889657][ T4826] ---[ end trace 6547c966de0c9401 ]--- [ 52.892545][ T4826] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory 1970/01/01 00:00:52 executed programs: 12 [ 53.037535][ T4848] BTRFS: device fsid d552757d-9c39-40e3-95f0-16d819589928 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4848) [ 53.053329][ T4848] FAULT_INJECTION: forcing a failure. [ 53.053329][ T4848] name failslab, interval 1, probability 0, space 0, times 0 [ 53.055593][ T4848] CPU: 0 PID: 4848 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.057242][ T4848] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 53.058883][ T4848] Call trace: [ 53.059442][ T4848] dump_backtrace+0x0/0x458 [ 53.060336][ T4848] show_stack+0x2c/0x3c [ 53.061064][ T4848] __dump_stack+0x30/0x40 [ 53.061790][ T4848] dump_stack_lvl+0xf4/0x15c [ 53.062543][ T4848] dump_stack+0x1c/0x5c [ 53.063217][ T4848] should_fail+0x3bc/0x514 [ 53.063935][ T4848] __should_failslab+0xbc/0x10c [ 53.064765][ T4848] should_failslab+0x10/0x28 [ 53.065449][ T4848] slab_pre_alloc_hook+0x64/0xe8 [ 53.066271][ T4848] kmem_cache_alloc+0x94/0x3d4 [ 53.067029][ T4848] btrfs_alloc_path+0x5c/0x68 [ 53.067763][ T4848] __btrfs_free_extent+0x1a8/0x1abc [ 53.068561][ T4848] __btrfs_run_delayed_refs+0xbf0/0x348c [ 53.069462][ T4848] btrfs_run_delayed_refs+0x124/0x458 [ 53.070380][ T4848] btrfs_commit_transaction+0x1e0/0x3078 [ 53.071291][ T4848] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 53.072250][ T4848] btrfs_ioctl+0x50c/0xa8c [ 53.073006][ T4848] __arm64_sys_ioctl+0x14c/0x1c8 [ 53.073821][ T4848] invoke_syscall+0x98/0x2b0 [ 53.074509][ T4848] el0_svc_common+0x138/0x258 [ 53.075255][ T4848] do_el0_svc+0x58/0x13c [ 53.075880][ T4848] el0_svc+0x78/0x1d0 [ 53.076529][ T4848] el0t_64_sync_handler+0xcc/0xe4 [ 53.077457][ T4848] el0t_64_sync+0x1a0/0x1a4 [ 53.080345][ T4848] BTRFS error (device loop0): failed to run delayed ref for logical 5255168 num_bytes 4096 type 176 action 2 ref_mod 1: -12 [ 53.082599][ T4848] ------------[ cut here ]------------ [ 53.083661][ T4848] WARNING: CPU: 0 PID: 4848 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 53.085230][ T4848] Modules linked in: [ 53.085871][ T4848] CPU: 0 PID: 4848 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.087287][ T4848] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 53.088945][ T4848] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 53.090222][ T4848] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 53.091266][ T4848] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 53.092155][ T4848] sp : ffff8000200b77d0 [ 53.092853][ T4848] x29: ffff8000200b77e0 x28: ffff0000d1991000 x27: dfff800000000000 [ 53.094267][ T4848] x26: ffff0000d1991024 x25: ffff0000c7978000 x24: 1fffe0001bdbaa0b [ 53.095719][ T4848] x23: 1fffe0001bdbaa0b x22: ffff0000dedd5058 x21: 00000000fffffff4 [ 53.097119][ T4848] x20: 0000000000000051 x19: ffff0000dedd5000 x18: 0000000000000001 [ 53.098351][ T4848] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 53.099607][ T4848] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 53.100819][ T4848] x11: 0000000000000000 x10: 0000000000000000 x9 : 25c7963aec7a5b00 [ 53.102048][ T4848] x8 : 25c7963aec7a5b00 x7 : 0000000000000001 x6 : 0000000000000001 [ 53.103278][ T4848] x5 : ffff8000200b70d8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 53.104559][ T4848] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 53.105816][ T4848] Call trace: [ 53.106385][ T4848] btrfs_run_delayed_refs+0x3e4/0x458 [ 53.107253][ T4848] btrfs_commit_transaction+0x1e0/0x3078 [ 53.108181][ T4848] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 53.109076][ T4848] btrfs_ioctl+0x50c/0xa8c [ 53.109810][ T4848] __arm64_sys_ioctl+0x14c/0x1c8 [ 53.110656][ T4848] invoke_syscall+0x98/0x2b0 [ 53.111395][ T4848] el0_svc_common+0x138/0x258 [ 53.112151][ T4848] do_el0_svc+0x58/0x13c [ 53.112832][ T4848] el0_svc+0x78/0x1d0 [ 53.113507][ T4848] el0t_64_sync_handler+0xcc/0xe4 [ 53.114245][ T4848] el0t_64_sync+0x1a0/0x1a4 [ 53.114970][ T4848] irq event stamp: 79948 [ 53.115703][ T4848] hardirqs last enabled at (79947): [] __up_console_sem+0xb4/0xfc [ 53.117361][ T4848] hardirqs last disabled at (79948): [] el1_dbg+0x24/0x80 [ 53.118900][ T4848] softirqs last enabled at (79912): [] handle_softirqs+0xa40/0xbe4 [ 53.120334][ T4848] softirqs last disabled at (79803): [] __irq_exit_rcu+0x240/0x43c [ 53.121862][ T4848] ---[ end trace 6547c966de0c9402 ]--- [ 53.124978][ T4848] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 53.342265][ T4870] BTRFS: device fsid d552757d-9c39-40e3-95f0-16d819589928 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4870) [ 53.356946][ T4870] FAULT_INJECTION: forcing a failure. [ 53.356946][ T4870] name failslab, interval 1, probability 0, space 0, times 0 [ 53.359241][ T4870] CPU: 1 PID: 4870 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.360679][ T4870] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 53.362304][ T4870] Call trace: [ 53.362819][ T4870] dump_backtrace+0x0/0x458 [ 53.363546][ T4870] show_stack+0x2c/0x3c [ 53.364187][ T4870] __dump_stack+0x30/0x40 [ 53.364838][ T4870] dump_stack_lvl+0xf4/0x15c [ 53.365596][ T4870] dump_stack+0x1c/0x5c [ 53.366256][ T4870] should_fail+0x3bc/0x514 [ 53.366907][ T4870] __should_failslab+0xbc/0x10c [ 53.367639][ T4870] should_failslab+0x10/0x28 [ 53.368405][ T4870] slab_pre_alloc_hook+0x64/0xe8 [ 53.369276][ T4870] kmem_cache_alloc+0x94/0x3d4 [ 53.370043][ T4870] btrfs_alloc_path+0x5c/0x68 [ 53.370892][ T4870] __btrfs_free_extent+0x1a8/0x1abc [ 53.371800][ T4870] __btrfs_run_delayed_refs+0xbf0/0x348c [ 53.372679][ T4870] btrfs_run_delayed_refs+0x124/0x458 [ 53.373557][ T4870] btrfs_commit_transaction+0x1e0/0x3078 [ 53.374587][ T4870] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 53.375525][ T4870] btrfs_ioctl+0x50c/0xa8c [ 53.376276][ T4870] __arm64_sys_ioctl+0x14c/0x1c8 [ 53.377114][ T4870] invoke_syscall+0x98/0x2b0 [ 53.377858][ T4870] el0_svc_common+0x138/0x258 [ 53.378642][ T4870] do_el0_svc+0x58/0x13c [ 53.379341][ T4870] el0_svc+0x78/0x1d0 [ 53.380061][ T4870] el0t_64_sync_handler+0xcc/0xe4 [ 53.380911][ T4870] el0t_64_sync+0x1a0/0x1a4 [ 53.381823][ T4870] BTRFS error (device loop0): failed to run delayed ref for logical 5255168 num_bytes 4096 type 176 action 2 ref_mod 1: -12 [ 53.383919][ T4870] ------------[ cut here ]------------ [ 53.384953][ T4870] WARNING: CPU: 1 PID: 4870 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 53.386656][ T4870] Modules linked in: [ 53.387273][ T4870] CPU: 1 PID: 4870 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.388734][ T4870] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 53.390474][ T4870] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 53.391846][ T4870] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 53.392844][ T4870] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 53.393811][ T4870] sp : ffff8000208077d0 [ 53.394511][ T4870] x29: ffff8000208077e0 x28: ffff0000d1995000 x27: dfff800000000000 [ 53.395842][ T4870] x26: ffff0000d1995024 x25: ffff0000dcdb8000 x24: 1fffe0001bd946d1 [ 53.397143][ T4870] x23: 1fffe0001bd946d1 x22: ffff0000deca3688 x21: 00000000fffffff4 [ 53.398503][ T4870] x20: 0000000000000051 x19: ffff0000deca3630 x18: 0000000000000001 [ 53.399822][ T4870] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 53.401146][ T4870] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 53.402349][ T4870] x11: 0000000000000000 x10: 0000000000000000 x9 : 9ce31a246a582400 [ 53.403674][ T4870] x8 : 9ce31a246a582400 x7 : 0000000000000001 x6 : 0000000000000001 [ 53.404930][ T4870] x5 : ffff8000208070d8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 53.406327][ T4870] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 53.407638][ T4870] Call trace: [ 53.408179][ T4870] btrfs_run_delayed_refs+0x3e4/0x458 [ 53.409043][ T4870] btrfs_commit_transaction+0x1e0/0x3078 [ 53.410013][ T4870] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 53.410916][ T4870] btrfs_ioctl+0x50c/0xa8c [ 53.411583][ T4870] __arm64_sys_ioctl+0x14c/0x1c8 [ 53.412357][ T4870] invoke_syscall+0x98/0x2b0 [ 53.413089][ T4870] el0_svc_common+0x138/0x258 [ 53.413830][ T4870] do_el0_svc+0x58/0x13c [ 53.414502][ T4870] el0_svc+0x78/0x1d0 [ 53.415152][ T4870] el0t_64_sync_handler+0xcc/0xe4 [ 53.415913][ T4870] el0t_64_sync+0x1a0/0x1a4 [ 53.416700][ T4870] irq event stamp: 79516 [ 53.417376][ T4870] hardirqs last enabled at (79515): [] __up_console_sem+0xb4/0xfc [ 53.418871][ T4870] hardirqs last disabled at (79516): [] el1_dbg+0x24/0x80 [ 53.420368][ T4870] softirqs last enabled at (79484): [] handle_softirqs+0xa40/0xbe4 [ 53.421900][ T4870] softirqs last disabled at (79465): [] __irq_exit_rcu+0x240/0x43c [ 53.423507][ T4870] ---[ end trace 6547c966de0c9403 ]--- [ 53.425033][ T4870] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 53.568547][ T4892] BTRFS: device fsid d552757d-9c39-40e3-95f0-16d819589928 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4892) [ 53.588526][ T4892] FAULT_INJECTION: forcing a failure. [ 53.588526][ T4892] name failslab, interval 1, probability 0, space 0, times 0 [ 53.590962][ T4892] CPU: 1 PID: 4892 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.592470][ T4892] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 53.594126][ T4892] Call trace: [ 53.594699][ T4892] dump_backtrace+0x0/0x458 [ 53.595501][ T4892] show_stack+0x2c/0x3c [ 53.596179][ T4892] __dump_stack+0x30/0x40 [ 53.596849][ T4892] dump_stack_lvl+0xf4/0x15c [ 53.597607][ T4892] dump_stack+0x1c/0x5c [ 53.598332][ T4892] should_fail+0x3bc/0x514 [ 53.599085][ T4892] __should_failslab+0xbc/0x10c [ 53.599891][ T4892] should_failslab+0x10/0x28 [ 53.600656][ T4892] slab_pre_alloc_hook+0x64/0xe8 [ 53.601446][ T4892] kmem_cache_alloc+0x94/0x3d4 [ 53.602221][ T4892] btrfs_alloc_path+0x5c/0x68 [ 53.602994][ T4892] __btrfs_free_extent+0x1a8/0x1abc [ 53.603830][ T4892] __btrfs_run_delayed_refs+0xbf0/0x348c [ 53.604740][ T4892] btrfs_run_delayed_refs+0x124/0x458 [ 53.605598][ T4892] btrfs_commit_transaction+0x1e0/0x3078 [ 53.606506][ T4892] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 53.607412][ T4892] btrfs_ioctl+0x50c/0xa8c [ 53.608138][ T4892] __arm64_sys_ioctl+0x14c/0x1c8 [ 53.608933][ T4892] invoke_syscall+0x98/0x2b0 [ 53.609717][ T4892] el0_svc_common+0x138/0x258 [ 53.610495][ T4892] do_el0_svc+0x58/0x13c [ 53.611195][ T4892] el0_svc+0x78/0x1d0 [ 53.611863][ T4892] el0t_64_sync_handler+0xcc/0xe4 [ 53.612682][ T4892] el0t_64_sync+0x1a0/0x1a4 [ 53.614729][ T4892] BTRFS error (device loop0): failed to run delayed ref for logical 5255168 num_bytes 4096 type 176 action 2 ref_mod 1: -12 [ 53.616943][ T4892] ------------[ cut here ]------------ [ 53.617973][ T4892] WARNING: CPU: 1 PID: 4892 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 53.619624][ T4892] Modules linked in: [ 53.620199][ T4892] CPU: 1 PID: 4892 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.621538][ T4892] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 53.623144][ T4892] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 53.624488][ T4892] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 53.625418][ T4892] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 53.626366][ T4892] sp : ffff8000207f77d0 [ 53.627054][ T4892] x29: ffff8000207f77e0 x28: ffff0000c8604000 x27: dfff800000000000 [ 53.628377][ T4892] x26: ffff0000c8604024 x25: ffff0000ce364000 x24: 1fffe0001bd946fd [ 53.629734][ T4892] x23: 1fffe0001bd946fd x22: ffff0000deca37e8 x21: 00000000fffffff4 [ 53.631045][ T4892] x20: 0000000000000051 x19: ffff0000deca3790 x18: 0000000000000001 [ 53.632465][ T4892] x17: 0000000000000000 x16: ffff800008304ad4 x15: 00000000ffffffff [ 53.633819][ T4892] x14: 0000000000000001 x13: 1ffff000040fee18 x12: 0000000000ff0100 [ 53.635168][ T4892] x11: 0000000000000000 x10: 0000000000000000 x9 : 2be4736b268c0a00 [ 53.636516][ T4892] x8 : 2be4736b268c0a00 x7 : 0000000000000001 x6 : 0000000000000001 [ 53.637840][ T4892] x5 : ffff8000207f70d8 x4 : ffff80001436f3e0 x3 : ffff800008304be4 [ 53.639152][ T4892] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 53.640387][ T4892] Call trace: [ 53.640911][ T4892] btrfs_run_delayed_refs+0x3e4/0x458 [ 53.641773][ T4892] btrfs_commit_transaction+0x1e0/0x3078 [ 53.642736][ T4892] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 53.643619][ T4892] btrfs_ioctl+0x50c/0xa8c [ 53.644335][ T4892] __arm64_sys_ioctl+0x14c/0x1c8 [ 53.645153][ T4892] invoke_syscall+0x98/0x2b0 [ 53.645952][ T4892] el0_svc_common+0x138/0x258 [ 53.646714][ T4892] do_el0_svc+0x58/0x13c [ 53.647430][ T4892] el0_svc+0x78/0x1d0 [ 53.648065][ T4892] el0t_64_sync_handler+0xcc/0xe4 [ 53.648904][ T4892] el0t_64_sync+0x1a0/0x1a4 [ 53.649614][ T4892] irq event stamp: 79830 [ 53.650309][ T4892] hardirqs last enabled at (79829): [] __up_console_sem+0xb4/0xfc [ 53.651914][ T4892] hardirqs last disabled at (79830): [] el1_dbg+0x24/0x80 [ 53.653429][ T4892] softirqs last enabled at (79820): [] handle_softirqs+0xa40/0xbe4 [ 53.654974][ T4892] softirqs last disabled at (79815): [] __irq_exit_rcu+0x240/0x43c [ 53.656549][ T4892] ---[ end trace 6547c966de0c9404 ]--- [ 53.658173][ T4892] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 53.918693][ T4914] BTRFS: device fsid d552757d-9c39-40e3-95f0-16d819589928 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4914) [ 53.961833][ T4914] FAULT_INJECTION: forcing a failure. [ 53.961833][ T4914] name failslab, interval 1, probability 0, space 0, times 0 [ 53.964125][ T4914] CPU: 0 PID: 4914 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.965620][ T4914] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 53.967293][ T4914] Call trace: [ 53.967882][ T4914] dump_backtrace+0x0/0x458 [ 53.968733][ T4914] show_stack+0x2c/0x3c [ 53.969472][ T4914] __dump_stack+0x30/0x40 [ 53.970265][ T4914] dump_stack_lvl+0xf4/0x15c [ 53.971032][ T4914] dump_stack+0x1c/0x5c [ 53.971714][ T4914] should_fail+0x3bc/0x514 [ 53.972455][ T4914] __should_failslab+0xbc/0x10c [ 53.973289][ T4914] should_failslab+0x10/0x28 [ 53.974033][ T4914] slab_pre_alloc_hook+0x64/0xe8 [ 53.974818][ T4914] kmem_cache_alloc+0x94/0x3d4 [ 53.975573][ T4914] btrfs_alloc_path+0x5c/0x68 [ 53.976339][ T4914] __btrfs_run_delayed_refs+0xe70/0x348c [ 53.977273][ T4914] btrfs_run_delayed_refs+0x124/0x458 [ 53.978162][ T4914] btrfs_commit_transaction+0x1e0/0x3078 [ 53.979089][ T4914] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 53.980054][ T4914] btrfs_ioctl+0x50c/0xa8c [ 53.980761][ T4914] __arm64_sys_ioctl+0x14c/0x1c8 [ 53.981558][ T4914] invoke_syscall+0x98/0x2b0 [ 53.982357][ T4914] el0_svc_common+0x138/0x258 [ 53.983177][ T4914] do_el0_svc+0x58/0x13c [ 53.983890][ T4914] el0_svc+0x78/0x1d0 [ 53.984544][ T4914] el0t_64_sync_handler+0xcc/0xe4 [ 53.985402][ T4914] el0t_64_sync+0x1a0/0x1a4 [ 53.987077][ T4914] BTRFS error (device loop0): failed to run delayed ref for logical 5242880 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 53.989402][ T4914] ------------[ cut here ]------------ [ 53.990395][ T4914] WARNING: CPU: 0 PID: 4914 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 53.991976][ T4914] Modules linked in: [ 53.992584][ T4914] CPU: 0 PID: 4914 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 53.994114][ T4914] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 53.995762][ T4914] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 53.997061][ T4914] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 53.998050][ T4914] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 53.999050][ T4914] sp : ffff800020b177d0 [ 53.999720][ T4914] x29: ffff800020b177e0 x28: ffff0000c29ab000 x27: dfff800000000000 [ 54.001029][ T4914] x26: ffff0000c29ab024 x25: ffff0000ca1d0000 x24: 1fffe0001bdbaa4d [ 54.002359][ T4914] x23: 1fffe0001bdbaa4d x22: ffff0000dedd5268 x21: 00000000fffffff4 [ 54.003727][ T4914] x20: 0000000000000051 x19: ffff0000dedd5210 x18: 0000000000000001 [ 54.005028][ T4914] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 54.006347][ T4914] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 54.007654][ T4914] x11: 0000000000000000 x10: 0000000000000000 x9 : c67e017352a08b00 [ 54.008981][ T4914] x8 : c67e017352a08b00 x7 : 0000000000000001 x6 : 0000000000000001 [ 54.010320][ T4914] x5 : ffff800020b170d8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 54.011845][ T4914] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 54.013328][ T4914] Call trace: [ 54.013870][ T4914] btrfs_run_delayed_refs+0x3e4/0x458 [ 54.014758][ T4914] btrfs_commit_transaction+0x1e0/0x3078 [ 54.015729][ T4914] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 54.016608][ T4914] btrfs_ioctl+0x50c/0xa8c [ 54.017385][ T4914] __arm64_sys_ioctl+0x14c/0x1c8 [ 54.018235][ T4914] invoke_syscall+0x98/0x2b0 [ 54.018973][ T4914] el0_svc_common+0x138/0x258 [ 54.019738][ T4914] do_el0_svc+0x58/0x13c [ 54.020522][ T4914] el0_svc+0x78/0x1d0 [ 54.021265][ T4914] el0t_64_sync_handler+0xcc/0xe4 [ 54.022185][ T4914] el0t_64_sync+0x1a0/0x1a4 [ 54.022946][ T4914] irq event stamp: 78812 [ 54.023630][ T4914] hardirqs last enabled at (78811): [] __up_console_sem+0xb4/0xfc [ 54.025176][ T4914] hardirqs last disabled at (78812): [] el1_dbg+0x24/0x80 [ 54.026556][ T4914] softirqs last enabled at (78788): [] handle_softirqs+0xa40/0xbe4 [ 54.028106][ T4914] softirqs last disabled at (78767): [] __irq_exit_rcu+0x240/0x43c [ 54.029753][ T4914] ---[ end trace 6547c966de0c9405 ]--- [ 54.031017][ T4914] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 54.039917][ T21] Bluetooth: hci0: command 0x040f tx timeout [ 54.223703][ T4935] set_capacity_and_notify: 6 callbacks suppressed [ 54.223712][ T4935] loop0: detected capacity change from 0 to 32768 [ 54.273898][ T4935] BTRFS: device fsid d552757d-9c39-40e3-95f0-16d819589928 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4935) [ 54.281465][ T4935] btrfs_printk: 43 callbacks suppressed [ 54.281479][ T4935] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 54.283657][ T4935] BTRFS info (device loop0): use zlib compression, level 3 [ 54.284852][ T4935] BTRFS info (device loop0): disabling tree log [ 54.285887][ T4935] BTRFS info (device loop0): turning on sync discard [ 54.286967][ T4935] BTRFS info (device loop0): enabling ssd optimizations [ 54.288157][ T4935] BTRFS info (device loop0): using spread ssd allocation scheme [ 54.289373][ T4935] BTRFS info (device loop0): using free space tree [ 54.290452][ T4935] BTRFS info (device loop0): has skinny extents [ 54.301396][ T4935] FAULT_INJECTION: forcing a failure. [ 54.301396][ T4935] name fail_usercopy, interval 1, probability 0, space 0, times 1 [ 54.303839][ T4935] CPU: 1 PID: 4935 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 54.305307][ T4935] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 54.306965][ T4935] Call trace: [ 54.307506][ T4935] dump_backtrace+0x0/0x458 [ 54.308249][ T4935] show_stack+0x2c/0x3c [ 54.308947][ T4935] __dump_stack+0x30/0x40 [ 54.309655][ T4935] dump_stack_lvl+0xf4/0x15c [ 54.310411][ T4935] dump_stack+0x1c/0x5c [ 54.311084][ T4935] should_fail+0x3bc/0x514 [ 54.311812][ T4935] should_fail_usercopy+0x20/0x30 [ 54.312702][ T4935] btrfs_ioctl_set_fslabel+0x16c/0x3d0 [ 54.313659][ T4935] btrfs_ioctl+0x50c/0xa8c [ 54.314380][ T4935] __arm64_sys_ioctl+0x14c/0x1c8 [ 54.315150][ T4935] invoke_syscall+0x98/0x2b0 [ 54.315928][ T4935] el0_svc_common+0x138/0x258 [ 54.316759][ T4935] do_el0_svc+0x58/0x13c [ 54.317511][ T4935] el0_svc+0x78/0x1d0 [ 54.318220][ T4935] el0t_64_sync_handler+0xcc/0xe4 [ 54.319067][ T4935] el0t_64_sync+0x1a0/0x1a4 [ 54.361724][ T4302] BTRFS: device fsid d552757d-9c39-40e3-95f0-16d819589928 devid 1 transid 10 /dev/loop0 scanned by udevd (4302) [ 54.462222][ T4956] loop0: detected capacity change from 0 to 32768 [ 54.521676][ T4956] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 54.523332][ T4956] BTRFS info (device loop0): use zlib compression, level 3 [ 54.524560][ T4956] BTRFS info (device loop0): disabling tree log [ 54.525706][ T4956] BTRFS info (device loop0): turning on sync discard [ 54.526976][ T4956] BTRFS info (device loop0): enabling ssd optimizations [ 54.529360][ T4956] BTRFS info (device loop0): using spread ssd allocation scheme [ 54.530916][ T4956] BTRFS info (device loop0): using free space tree [ 54.531898][ T4956] BTRFS info (device loop0): has skinny extents [ 54.543146][ T4956] FAULT_INJECTION: forcing a failure. [ 54.543146][ T4956] name failslab, interval 1, probability 0, space 0, times 0 [ 54.545579][ T4956] CPU: 0 PID: 4956 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 54.546977][ T4956] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 54.548534][ T4956] Call trace: [ 54.549102][ T4956] dump_backtrace+0x0/0x458 [ 54.549800][ T4956] show_stack+0x2c/0x3c [ 54.550400][ T4956] __dump_stack+0x30/0x40 [ 54.551159][ T4956] dump_stack_lvl+0xf4/0x15c [ 54.551840][ T4956] dump_stack+0x1c/0x5c [ 54.552512][ T4956] should_fail+0x3bc/0x514 [ 54.553209][ T4956] __should_failslab+0xbc/0x10c [ 54.553958][ T4956] should_failslab+0x10/0x28 [ 54.554749][ T4956] slab_pre_alloc_hook+0x64/0xe8 [ 54.555521][ T4956] kmem_cache_alloc+0x94/0x3d4 [ 54.556313][ T4956] btrfs_alloc_path+0x5c/0x68 [ 54.557109][ T4956] __btrfs_free_extent+0x1a8/0x1abc [ 54.557986][ T4956] __btrfs_run_delayed_refs+0xbf0/0x348c [ 54.558912][ T4956] btrfs_run_delayed_refs+0x124/0x458 [ 54.559824][ T4956] btrfs_commit_transaction+0x1e0/0x3078 [ 54.560759][ T4956] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 54.561626][ T4956] btrfs_ioctl+0x50c/0xa8c [ 54.562340][ T4956] __arm64_sys_ioctl+0x14c/0x1c8 [ 54.563133][ T4956] invoke_syscall+0x98/0x2b0 [ 54.563876][ T4956] el0_svc_common+0x138/0x258 [ 54.564636][ T4956] do_el0_svc+0x58/0x13c [ 54.565416][ T4956] el0_svc+0x78/0x1d0 [ 54.566076][ T4956] el0t_64_sync_handler+0xcc/0xe4 [ 54.566947][ T4956] el0t_64_sync+0x1a0/0x1a4 [ 54.570351][ T4956] BTRFS error (device loop0): failed to run delayed ref for logical 5255168 num_bytes 4096 type 176 action 2 ref_mod 1: -12 [ 54.572416][ T4956] ------------[ cut here ]------------ [ 54.573352][ T4956] WARNING: CPU: 0 PID: 4956 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 54.575045][ T4956] Modules linked in: [ 54.575645][ T4956] CPU: 0 PID: 4956 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 54.577096][ T4956] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 54.578643][ T4956] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 54.579833][ T4956] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 54.580778][ T4956] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 54.581776][ T4956] sp : ffff8000203c77d0 [ 54.582464][ T4956] x29: ffff8000203c77e0 x28: ffff0000c1548000 x27: dfff800000000000 [ 54.583808][ T4956] x26: ffff0000c1548024 x25: ffff0000da978000 x24: 1fffe0001bdbab81 [ 54.585130][ T4956] x23: 1fffe0001bdbab81 x22: ffff0000dedd5c08 x21: 00000000fffffff4 [ 54.586418][ T4956] x20: 0000000000000051 x19: ffff0000dedd5bb0 x18: 0000000000000001 [ 54.587734][ T4956] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 54.589013][ T4956] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 54.590302][ T4956] x11: 0000000000000000 x10: 0000000000000000 x9 : ecfb7f8f6696a700 [ 54.591590][ T4956] x8 : ecfb7f8f6696a700 x7 : 0000000000000001 x6 : 0000000000000001 [ 54.593149][ T4956] x5 : ffff8000203c70d8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 54.594507][ T4956] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 54.595803][ T4956] Call trace: [ 54.596316][ T4956] btrfs_run_delayed_refs+0x3e4/0x458 [ 54.597154][ T4956] btrfs_commit_transaction+0x1e0/0x3078 [ 54.598095][ T4956] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 54.598925][ T4956] btrfs_ioctl+0x50c/0xa8c [ 54.599610][ T4956] __arm64_sys_ioctl+0x14c/0x1c8 [ 54.600351][ T4956] invoke_syscall+0x98/0x2b0 [ 54.601040][ T4956] el0_svc_common+0x138/0x258 [ 54.601740][ T4956] do_el0_svc+0x58/0x13c [ 54.602389][ T4956] el0_svc+0x78/0x1d0 [ 54.602976][ T4956] el0t_64_sync_handler+0xcc/0xe4 [ 54.603717][ T4956] el0t_64_sync+0x1a0/0x1a4 [ 54.604481][ T4956] irq event stamp: 78990 [ 54.605203][ T4956] hardirqs last enabled at (78989): [] __up_console_sem+0xb4/0xfc [ 54.606742][ T4956] hardirqs last disabled at (78990): [] el1_dbg+0x24/0x80 [ 54.608088][ T4956] softirqs last enabled at (78954): [] handle_softirqs+0xa40/0xbe4 [ 54.609647][ T4956] softirqs last disabled at (78871): [] __irq_exit_rcu+0x240/0x43c [ 54.611207][ T4956] ---[ end trace 6547c966de0c9406 ]--- [ 54.614311][ T4956] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 54.615906][ T4956] BTRFS info (device loop0): forced readonly [ 54.751191][ T4980] loop0: detected capacity change from 0 to 32768 [ 54.789458][ T4980] BTRFS: device fsid d552757d-9c39-40e3-95f0-16d819589928 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (4980) [ 54.829774][ T4980] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 54.831218][ T4980] BTRFS info (device loop0): use zlib compression, level 3 [ 54.832382][ T4980] BTRFS info (device loop0): disabling tree log [ 54.833438][ T4980] BTRFS info (device loop0): turning on sync discard [ 54.834558][ T4980] BTRFS info (device loop0): enabling ssd optimizations [ 54.835699][ T4980] BTRFS info (device loop0): using spread ssd allocation scheme [ 54.836932][ T4980] BTRFS info (device loop0): using free space tree [ 54.838591][ T4980] BTRFS info (device loop0): has skinny extents [ 54.847844][ T4980] FAULT_INJECTION: forcing a failure. [ 54.847844][ T4980] name failslab, interval 1, probability 0, space 0, times 0 [ 54.849886][ T4980] CPU: 1 PID: 4980 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 54.851304][ T4980] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 54.852830][ T4980] Call trace: [ 54.853416][ T4980] dump_backtrace+0x0/0x458 [ 54.854135][ T4980] show_stack+0x2c/0x3c [ 54.854770][ T4980] __dump_stack+0x30/0x40 [ 54.855425][ T4980] dump_stack_lvl+0xf4/0x15c [ 54.856100][ T4980] dump_stack+0x1c/0x5c [ 54.856763][ T4980] should_fail+0x3bc/0x514 [ 54.857465][ T4980] __should_failslab+0xbc/0x10c [ 54.858232][ T4980] should_failslab+0x10/0x28 [ 54.858966][ T4980] slab_pre_alloc_hook+0x64/0xe8 [ 54.859712][ T4980] kmem_cache_alloc+0x94/0x3d4 [ 54.860483][ T4980] start_transaction+0x4d0/0x13ec [ 54.861304][ T4980] btrfs_start_transaction+0x34/0x44 [ 54.862141][ T4980] btrfs_ioctl_set_fslabel+0x2bc/0x3d0 [ 54.863035][ T4980] btrfs_ioctl+0x50c/0xa8c [ 54.863768][ T4980] __arm64_sys_ioctl+0x14c/0x1c8 [ 54.864605][ T4980] invoke_syscall+0x98/0x2b0 [ 54.865353][ T4980] el0_svc_common+0x138/0x258 [ 54.866164][ T4980] do_el0_svc+0x58/0x13c [ 54.866851][ T4980] el0_svc+0x78/0x1d0 [ 54.867508][ T4980] el0t_64_sync_handler+0xcc/0xe4 [ 54.868331][ T4980] el0t_64_sync+0x1a0/0x1a4 [ 54.912751][ T4302] BTRFS: device fsid d552757d-9c39-40e3-95f0-16d819589928 devid 1 transid 10 /dev/loop0 scanned by udevd (4302) [ 55.013132][ T5001] loop0: detected capacity change from 0 to 32768 [ 55.017701][ T5001] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 55.019497][ T5001] BTRFS info (device loop0): use zlib compression, level 3 [ 55.020687][ T5001] BTRFS info (device loop0): disabling tree log [ 55.021615][ T5001] BTRFS info (device loop0): turning on sync discard [ 55.022817][ T5001] BTRFS info (device loop0): enabling ssd optimizations [ 55.024022][ T5001] BTRFS info (device loop0): using spread ssd allocation scheme [ 55.025371][ T5001] BTRFS info (device loop0): using free space tree [ 55.026525][ T5001] BTRFS info (device loop0): has skinny extents [ 55.042298][ T5001] FAULT_INJECTION: forcing a failure. [ 55.042298][ T5001] name failslab, interval 1, probability 0, space 0, times 0 [ 55.044315][ T5001] CPU: 0 PID: 5001 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.045758][ T5001] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 55.047389][ T5001] Call trace: [ 55.047939][ T5001] dump_backtrace+0x0/0x458 [ 55.048683][ T5001] show_stack+0x2c/0x3c [ 55.049378][ T5001] __dump_stack+0x30/0x40 [ 55.050088][ T5001] dump_stack_lvl+0xf4/0x15c [ 55.050856][ T5001] dump_stack+0x1c/0x5c [ 55.051556][ T5001] should_fail+0x3bc/0x514 [ 55.052242][ T5001] __should_failslab+0xbc/0x10c [ 55.053078][ T5001] should_failslab+0x10/0x28 [ 55.053875][ T5001] slab_pre_alloc_hook+0x64/0xe8 [ 55.054634][ T5001] kmem_cache_alloc+0x94/0x3d4 [ 55.055488][ T5001] btrfs_alloc_path+0x5c/0x68 [ 55.056305][ T5001] __btrfs_free_extent+0x1a8/0x1abc [ 55.057201][ T5001] __btrfs_run_delayed_refs+0xbf0/0x348c [ 55.058184][ T5001] btrfs_run_delayed_refs+0x124/0x458 [ 55.059032][ T5001] btrfs_commit_transaction+0x1e0/0x3078 [ 55.059944][ T5001] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 55.060788][ T5001] btrfs_ioctl+0x50c/0xa8c [ 55.061517][ T5001] __arm64_sys_ioctl+0x14c/0x1c8 [ 55.062312][ T5001] invoke_syscall+0x98/0x2b0 [ 55.063073][ T5001] el0_svc_common+0x138/0x258 [ 55.063833][ T5001] do_el0_svc+0x58/0x13c [ 55.064505][ T5001] el0_svc+0x78/0x1d0 [ 55.065149][ T5001] el0t_64_sync_handler+0xcc/0xe4 [ 55.066032][ T5001] el0t_64_sync+0x1a0/0x1a4 [ 55.077875][ T5001] BTRFS error (device loop0): failed to run delayed ref for logical 5255168 num_bytes 4096 type 176 action 2 ref_mod 1: -12 [ 55.080115][ T5001] ------------[ cut here ]------------ [ 55.081138][ T5001] WARNING: CPU: 1 PID: 5001 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 55.082876][ T5001] Modules linked in: [ 55.083537][ T5001] CPU: 1 PID: 5001 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.085042][ T5001] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 55.086568][ T5001] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 55.087921][ T5001] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 55.088927][ T5001] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 55.089828][ T5001] sp : ffff8000203c77d0 [ 55.090516][ T5001] x29: ffff8000203c77e0 x28: ffff0000c1549000 x27: dfff800000000000 [ 55.091843][ T5001] x26: ffff0000c1549024 x25: ffff0000d4190000 x24: 1fffe0001bdbaabb [ 55.093211][ T5001] x23: 1fffe0001bdbaabb x22: ffff0000dedd55d8 x21: 00000000fffffff4 [ 55.094493][ T5001] x20: 0000000000000051 x19: ffff0000dedd5580 x18: 0000000000000001 [ 55.095855][ T5001] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 55.097133][ T5001] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 55.098511][ T5001] x11: 0000000000000000 x10: 0000000000000000 x9 : fdb12fdf72203e00 [ 55.099936][ T5001] x8 : fdb12fdf72203e00 x7 : 0000000000000001 x6 : 0000000000000001 [ 55.101334][ T5001] x5 : ffff8000203c70d8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 55.102709][ T5001] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 55.104083][ T5001] Call trace: [ 55.104577][ T5001] btrfs_run_delayed_refs+0x3e4/0x458 [ 55.105444][ T5001] btrfs_commit_transaction+0x1e0/0x3078 [ 55.106302][ T5001] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 55.107178][ T5001] btrfs_ioctl+0x50c/0xa8c [ 55.107853][ T5001] __arm64_sys_ioctl+0x14c/0x1c8 [ 55.108622][ T5001] invoke_syscall+0x98/0x2b0 [ 55.109365][ T5001] el0_svc_common+0x138/0x258 [ 55.110083][ T5001] do_el0_svc+0x58/0x13c [ 55.110733][ T5001] el0_svc+0x78/0x1d0 [ 55.111408][ T5001] el0t_64_sync_handler+0xcc/0xe4 [ 55.112331][ T5001] el0t_64_sync+0x1a0/0x1a4 [ 55.113075][ T5001] irq event stamp: 79842 [ 55.113810][ T5001] hardirqs last enabled at (79841): [] __up_console_sem+0xb4/0xfc [ 55.115475][ T5001] hardirqs last disabled at (79842): [] el1_dbg+0x24/0x80 [ 55.116823][ T5001] softirqs last enabled at (79806): [] handle_softirqs+0xa40/0xbe4 [ 55.118348][ T5001] softirqs last disabled at (79723): [] __irq_exit_rcu+0x240/0x43c [ 55.119787][ T5001] ---[ end trace 6547c966de0c9407 ]--- [ 55.120785][ T5001] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 55.122293][ T5001] BTRFS info (device loop0): forced readonly [ 55.316738][ T5023] loop0: detected capacity change from 0 to 32768 [ 55.374933][ T5023] BTRFS: device fsid d552757d-9c39-40e3-95f0-16d819589928 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5023) [ 55.378885][ T5023] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 55.380351][ T5023] BTRFS info (device loop0): use zlib compression, level 3 [ 55.381825][ T5023] BTRFS info (device loop0): disabling tree log [ 55.382965][ T5023] BTRFS info (device loop0): turning on sync discard [ 55.384166][ T5023] BTRFS info (device loop0): enabling ssd optimizations [ 55.385306][ T5023] BTRFS info (device loop0): using spread ssd allocation scheme [ 55.386541][ T5023] BTRFS info (device loop0): using free space tree [ 55.387476][ T5023] BTRFS info (device loop0): has skinny extents [ 55.399540][ T5023] FAULT_INJECTION: forcing a failure. [ 55.399540][ T5023] name failslab, interval 1, probability 0, space 0, times 0 [ 55.402063][ T5023] CPU: 0 PID: 5023 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.403517][ T5023] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 55.405183][ T5023] Call trace: [ 55.405697][ T5023] dump_backtrace+0x0/0x458 [ 55.406431][ T5023] show_stack+0x2c/0x3c [ 55.407107][ T5023] __dump_stack+0x30/0x40 [ 55.407834][ T5023] dump_stack_lvl+0xf4/0x15c [ 55.408557][ T5023] dump_stack+0x1c/0x5c [ 55.409205][ T5023] should_fail+0x3bc/0x514 [ 55.409937][ T5023] __should_failslab+0xbc/0x10c [ 55.410750][ T5023] should_failslab+0x10/0x28 [ 55.411469][ T5023] slab_pre_alloc_hook+0x64/0xe8 [ 55.412292][ T5023] kmem_cache_alloc+0x94/0x3d4 [ 55.413060][ T5023] btrfs_alloc_path+0x5c/0x68 [ 55.413810][ T5023] __btrfs_free_extent+0x1a8/0x1abc [ 55.414595][ T5023] __btrfs_run_delayed_refs+0xbf0/0x348c [ 55.415476][ T5023] btrfs_run_delayed_refs+0x124/0x458 [ 55.416331][ T5023] btrfs_commit_transaction+0x1e0/0x3078 [ 55.417231][ T5023] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 55.418094][ T5023] btrfs_ioctl+0x50c/0xa8c [ 55.418772][ T5023] __arm64_sys_ioctl+0x14c/0x1c8 [ 55.419549][ T5023] invoke_syscall+0x98/0x2b0 [ 55.420279][ T5023] el0_svc_common+0x138/0x258 [ 55.421035][ T5023] do_el0_svc+0x58/0x13c [ 55.421714][ T5023] el0_svc+0x78/0x1d0 [ 55.422342][ T5023] el0t_64_sync_handler+0xcc/0xe4 [ 55.423084][ T5023] el0t_64_sync+0x1a0/0x1a4 [ 55.424601][ T5023] BTRFS error (device loop0): failed to run delayed ref for logical 5255168 num_bytes 4096 type 176 action 2 ref_mod 1: -12 [ 55.426573][ T5023] ------------[ cut here ]------------ [ 55.427564][ T5023] WARNING: CPU: 0 PID: 5023 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 55.429253][ T5023] Modules linked in: [ 55.429947][ T5023] CPU: 0 PID: 5023 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.431528][ T5023] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 55.433278][ T5023] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 55.434617][ T5023] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 55.435533][ T5023] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 55.436480][ T5023] sp : ffff800020f977d0 [ 55.437125][ T5023] x29: ffff800020f977e0 x28: ffff0000c8a56000 x27: dfff800000000000 [ 55.438420][ T5023] x26: ffff0000c8a56024 x25: ffff0000dac94000 x24: 1fffe0001bdbabad [ 55.439652][ T5023] x23: 1fffe0001bdbabad x22: ffff0000dedd5d68 x21: 00000000fffffff4 [ 55.440894][ T5023] x20: 0000000000000051 x19: ffff0000dedd5d10 x18: 0000000000000001 [ 55.442227][ T5023] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 55.443512][ T5023] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 55.444784][ T5023] x11: 0000000000000000 x10: 0000000000000000 x9 : ad1110eb2c6ce400 [ 55.446152][ T5023] x8 : ad1110eb2c6ce400 x7 : 0000000000000001 x6 : 0000000000000001 [ 55.447542][ T5023] x5 : ffff800020f970d8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 55.448864][ T5023] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 55.450099][ T5023] Call trace: [ 55.450615][ T5023] btrfs_run_delayed_refs+0x3e4/0x458 [ 55.451521][ T5023] btrfs_commit_transaction+0x1e0/0x3078 [ 55.452403][ T5023] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 55.453235][ T5023] btrfs_ioctl+0x50c/0xa8c [ 55.453906][ T5023] __arm64_sys_ioctl+0x14c/0x1c8 [ 55.454651][ T5023] invoke_syscall+0x98/0x2b0 [ 55.455409][ T5023] el0_svc_common+0x138/0x258 [ 55.456172][ T5023] do_el0_svc+0x58/0x13c [ 55.456834][ T5023] el0_svc+0x78/0x1d0 [ 55.457466][ T5023] el0t_64_sync_handler+0xcc/0xe4 [ 55.458314][ T5023] el0t_64_sync+0x1a0/0x1a4 [ 55.459079][ T5023] irq event stamp: 78998 [ 55.459705][ T5023] hardirqs last enabled at (78997): [] __up_console_sem+0xb4/0xfc [ 55.461321][ T5023] hardirqs last disabled at (78998): [] el1_dbg+0x24/0x80 [ 55.462745][ T5023] softirqs last enabled at (78962): [] handle_softirqs+0xa40/0xbe4 [ 55.464249][ T5023] softirqs last disabled at (78929): [] __irq_exit_rcu+0x240/0x43c [ 55.465713][ T5023] ---[ end trace 6547c966de0c9408 ]--- [ 55.467809][ T5023] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 55.469532][ T5023] BTRFS info (device loop0): forced readonly [ 55.675506][ T5045] loop0: detected capacity change from 0 to 32768 [ 55.714256][ T5045] BTRFS: device fsid d552757d-9c39-40e3-95f0-16d819589928 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5045) [ 55.717585][ T5045] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 55.719133][ T5045] BTRFS info (device loop0): use zlib compression, level 3 [ 55.720291][ T5045] BTRFS info (device loop0): disabling tree log [ 55.721295][ T5045] BTRFS info (device loop0): turning on sync discard [ 55.722438][ T5045] BTRFS info (device loop0): enabling ssd optimizations [ 55.723633][ T5045] BTRFS info (device loop0): using spread ssd allocation scheme [ 55.724920][ T5045] BTRFS info (device loop0): using free space tree [ 55.725901][ T5045] BTRFS info (device loop0): has skinny extents [ 55.737066][ T5045] FAULT_INJECTION: forcing a failure. [ 55.737066][ T5045] name failslab, interval 1, probability 0, space 0, times 0 [ 55.740131][ T5045] CPU: 1 PID: 5045 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.741600][ T5045] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 55.743227][ T5045] Call trace: [ 55.743747][ T5045] dump_backtrace+0x0/0x458 [ 55.744477][ T5045] show_stack+0x2c/0x3c [ 55.745218][ T5045] __dump_stack+0x30/0x40 [ 55.745902][ T5045] dump_stack_lvl+0xf4/0x15c [ 55.746652][ T5045] dump_stack+0x1c/0x5c [ 55.747285][ T5045] should_fail+0x3bc/0x514 [ 55.748029][ T5045] __should_failslab+0xbc/0x10c [ 55.748735][ T5045] should_failslab+0x10/0x28 [ 55.749439][ T5045] slab_pre_alloc_hook+0x64/0xe8 [ 55.750239][ T5045] kmem_cache_alloc+0x94/0x3d4 [ 55.750970][ T5045] btrfs_alloc_path+0x5c/0x68 [ 55.751765][ T5045] __btrfs_free_extent+0x1a8/0x1abc [ 55.752618][ T5045] __btrfs_run_delayed_refs+0xbf0/0x348c [ 55.753526][ T5045] btrfs_run_delayed_refs+0x124/0x458 [ 55.754381][ T5045] btrfs_commit_transaction+0x1e0/0x3078 [ 55.755266][ T5045] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 55.756176][ T5045] btrfs_ioctl+0x50c/0xa8c [ 55.756960][ T5045] __arm64_sys_ioctl+0x14c/0x1c8 [ 55.757805][ T5045] invoke_syscall+0x98/0x2b0 [ 55.758592][ T5045] el0_svc_common+0x138/0x258 [ 55.759382][ T5045] do_el0_svc+0x58/0x13c [ 55.760051][ T5045] el0_svc+0x78/0x1d0 [ 55.760636][ T5045] el0t_64_sync_handler+0xcc/0xe4 [ 55.761552][ T5045] el0t_64_sync+0x1a0/0x1a4 [ 55.763770][ T5045] BTRFS error (device loop0): failed to run delayed ref for logical 5255168 num_bytes 4096 type 176 action 2 ref_mod 1: -12 [ 55.765937][ T5045] ------------[ cut here ]------------ [ 55.766859][ T5045] WARNING: CPU: 1 PID: 5045 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 55.768503][ T5045] Modules linked in: [ 55.769155][ T5045] CPU: 1 PID: 5045 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 55.770609][ T5045] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 55.772131][ T5045] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 55.773526][ T5045] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 55.774516][ T5045] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 55.775532][ T5045] sp : ffff8000211877d0 [ 55.776231][ T5045] x29: ffff8000211877e0 x28: ffff0000c2a71000 x27: dfff800000000000 [ 55.777503][ T5045] x26: ffff0000c2a71024 x25: ffff0000d4264000 x24: 1fffe0001bd94663 [ 55.778871][ T5045] x23: 1fffe0001bd94663 x22: ffff0000deca3318 x21: 00000000fffffff4 [ 55.780179][ T5045] x20: 0000000000000051 x19: ffff0000deca32c0 x18: 0000000000000001 [ 55.781448][ T5045] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 55.782657][ T5045] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 55.783966][ T5045] x11: 0000000000000000 x10: 0000000000000000 x9 : 052df64bfff08100 [ 55.785213][ T5045] x8 : 052df64bfff08100 x7 : 0000000000000001 x6 : 0000000000000001 [ 55.786529][ T5045] x5 : ffff8000211870d8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 55.787898][ T5045] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 55.789300][ T5045] Call trace: [ 55.789900][ T5045] btrfs_run_delayed_refs+0x3e4/0x458 [ 55.790760][ T5045] btrfs_commit_transaction+0x1e0/0x3078 [ 55.791691][ T5045] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 55.792633][ T5045] btrfs_ioctl+0x50c/0xa8c [ 55.793413][ T5045] __arm64_sys_ioctl+0x14c/0x1c8 [ 55.794220][ T5045] invoke_syscall+0x98/0x2b0 [ 55.795000][ T5045] el0_svc_common+0x138/0x258 [ 55.795748][ T5045] do_el0_svc+0x58/0x13c [ 55.796411][ T5045] el0_svc+0x78/0x1d0 [ 55.797057][ T5045] el0t_64_sync_handler+0xcc/0xe4 [ 55.797923][ T5045] el0t_64_sync+0x1a0/0x1a4 [ 55.798676][ T5045] irq event stamp: 78852 [ 55.799355][ T5045] hardirqs last enabled at (78851): [] __up_console_sem+0xb4/0xfc [ 55.800982][ T5045] hardirqs last disabled at (78852): [] el1_dbg+0x24/0x80 [ 55.802395][ T5045] softirqs last enabled at (78816): [] handle_softirqs+0xa40/0xbe4 [ 55.804035][ T5045] softirqs last disabled at (78801): [] __irq_exit_rcu+0x240/0x43c [ 55.805555][ T5045] ---[ end trace 6547c966de0c9409 ]--- [ 55.807569][ T5045] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 55.809339][ T5045] BTRFS info (device loop0): forced readonly [ 56.010045][ T5067] loop0: detected capacity change from 0 to 32768 [ 56.058017][ T5067] BTRFS: device fsid d552757d-9c39-40e3-95f0-16d819589928 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5067) [ 56.063060][ T5067] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 56.064447][ T5067] BTRFS info (device loop0): use zlib compression, level 3 [ 56.065598][ T5067] BTRFS info (device loop0): disabling tree log [ 56.066644][ T5067] BTRFS info (device loop0): turning on sync discard [ 56.067892][ T5067] BTRFS info (device loop0): enabling ssd optimizations [ 56.069058][ T5067] BTRFS info (device loop0): using spread ssd allocation scheme [ 56.070303][ T5067] BTRFS info (device loop0): using free space tree [ 56.071282][ T5067] BTRFS info (device loop0): has skinny extents [ 56.084340][ T5067] FAULT_INJECTION: forcing a failure. [ 56.084340][ T5067] name failslab, interval 1, probability 0, space 0, times 0 [ 56.086373][ T5067] CPU: 0 PID: 5067 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 56.087734][ T5067] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 56.089290][ T5067] Call trace: [ 56.089811][ T5067] dump_backtrace+0x0/0x458 [ 56.090487][ T5067] show_stack+0x2c/0x3c [ 56.091177][ T5067] __dump_stack+0x30/0x40 [ 56.091889][ T5067] dump_stack_lvl+0xf4/0x15c [ 56.092717][ T5067] dump_stack+0x1c/0x5c [ 56.093396][ T5067] should_fail+0x3bc/0x514 [ 56.094136][ T5067] __should_failslab+0xbc/0x10c [ 56.094918][ T5067] should_failslab+0x10/0x28 [ 56.095664][ T5067] slab_pre_alloc_hook+0x64/0xe8 [ 56.096442][ T5067] kmem_cache_alloc+0x94/0x3d4 [ 56.097201][ T5067] btrfs_alloc_path+0x5c/0x68 [ 56.097956][ T5067] __btrfs_free_extent+0x1a8/0x1abc [ 56.098767][ T5067] __btrfs_run_delayed_refs+0xbf0/0x348c [ 56.099657][ T5067] btrfs_run_delayed_refs+0x124/0x458 [ 56.100518][ T5067] btrfs_commit_transaction+0x1e0/0x3078 [ 56.101538][ T5067] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 56.102363][ T5067] btrfs_ioctl+0x50c/0xa8c [ 56.103079][ T5067] __arm64_sys_ioctl+0x14c/0x1c8 [ 56.103956][ T5067] invoke_syscall+0x98/0x2b0 [ 56.104683][ T5067] el0_svc_common+0x138/0x258 [ 56.105413][ T5067] do_el0_svc+0x58/0x13c [ 56.106126][ T5067] el0_svc+0x78/0x1d0 [ 56.106720][ T5067] el0t_64_sync_handler+0xcc/0xe4 [ 56.107509][ T5067] el0t_64_sync+0x1a0/0x1a4 [ 56.110661][ T5067] BTRFS error (device loop0): failed to run delayed ref for logical 5255168 num_bytes 4096 type 176 action 2 ref_mod 1: -12 [ 56.112609][ T5067] ------------[ cut here ]------------ [ 56.113662][ T5067] WARNING: CPU: 0 PID: 5067 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 56.115190][ T5067] Modules linked in: [ 56.115787][ T5067] CPU: 0 PID: 5067 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 56.117317][ T5067] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 56.117887][ T4528] Bluetooth: hci0: command 0x0419 tx timeout [ 56.119003][ T5067] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 56.121323][ T5067] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 56.122305][ T5067] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 56.123245][ T5067] sp : ffff8000212c77d0 [ 56.123950][ T5067] x29: ffff8000212c77e0 x28: ffff0000c8a52000 x27: dfff800000000000 [ 56.125377][ T5067] x26: ffff0000c8a52024 x25: ffff0000d4264000 x24: 1fffe0001bdbabd9 [ 56.126788][ T5067] x23: 1fffe0001bdbabd9 x22: ffff0000dedd5ec8 x21: 00000000fffffff4 [ 56.128107][ T5067] x20: 0000000000000051 x19: ffff0000dedd5e70 x18: 0000000000000001 [ 56.129375][ T5067] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 56.130739][ T5067] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 56.132042][ T5067] x11: 0000000000000000 x10: 0000000000000000 x9 : 30a609da4569fc00 [ 56.133329][ T5067] x8 : 30a609da4569fc00 x7 : 0000000000000001 x6 : 0000000000000001 [ 56.134606][ T5067] x5 : ffff8000212c70d8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 56.135909][ T5067] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 56.137160][ T5067] Call trace: [ 56.137703][ T5067] btrfs_run_delayed_refs+0x3e4/0x458 [ 56.138570][ T5067] btrfs_commit_transaction+0x1e0/0x3078 [ 56.139472][ T5067] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 56.140286][ T5067] btrfs_ioctl+0x50c/0xa8c [ 56.140960][ T5067] __arm64_sys_ioctl+0x14c/0x1c8 [ 56.141829][ T5067] invoke_syscall+0x98/0x2b0 [ 56.142610][ T5067] el0_svc_common+0x138/0x258 [ 56.143383][ T5067] do_el0_svc+0x58/0x13c [ 56.144065][ T5067] el0_svc+0x78/0x1d0 [ 56.144705][ T5067] el0t_64_sync_handler+0xcc/0xe4 [ 56.145508][ T5067] el0t_64_sync+0x1a0/0x1a4 [ 56.146279][ T5067] irq event stamp: 79190 [ 56.146964][ T5067] hardirqs last enabled at (79189): [] __up_console_sem+0xb4/0xfc [ 56.148430][ T5067] hardirqs last disabled at (79190): [] el1_dbg+0x24/0x80 [ 56.149840][ T5067] softirqs last enabled at (79158): [] handle_softirqs+0xa40/0xbe4 [ 56.151476][ T5067] softirqs last disabled at (79133): [] __irq_exit_rcu+0x240/0x43c [ 56.153076][ T5067] ---[ end trace 6547c966de0c940a ]--- [ 56.156228][ T5067] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 56.157864][ T5067] BTRFS info (device loop0): forced readonly [ 56.345065][ T5089] loop0: detected capacity change from 0 to 32768 [ 56.389280][ T5089] BTRFS: device fsid d552757d-9c39-40e3-95f0-16d819589928 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5089) [ 56.394543][ T5089] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 56.396122][ T5089] BTRFS info (device loop0): use zlib compression, level 3 [ 56.397345][ T5089] BTRFS info (device loop0): disabling tree log [ 56.398862][ T5089] BTRFS info (device loop0): turning on sync discard [ 56.399920][ T5089] BTRFS info (device loop0): enabling ssd optimizations [ 56.401091][ T5089] BTRFS info (device loop0): using spread ssd allocation scheme [ 56.402382][ T5089] BTRFS info (device loop0): using free space tree [ 56.403398][ T5089] BTRFS info (device loop0): has skinny extents [ 56.413353][ T5089] FAULT_INJECTION: forcing a failure. [ 56.413353][ T5089] name failslab, interval 1, probability 0, space 0, times 0 [ 56.415429][ T5089] CPU: 0 PID: 5089 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 56.416948][ T5089] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 56.418608][ T5089] Call trace: [ 56.419089][ T5089] dump_backtrace+0x0/0x458 [ 56.419837][ T5089] show_stack+0x2c/0x3c [ 56.420520][ T5089] __dump_stack+0x30/0x40 [ 56.421240][ T5089] dump_stack_lvl+0xf4/0x15c [ 56.422019][ T5089] dump_stack+0x1c/0x5c [ 56.422717][ T5089] should_fail+0x3bc/0x514 [ 56.423435][ T5089] __should_failslab+0xbc/0x10c [ 56.424246][ T5089] should_failslab+0x10/0x28 [ 56.424956][ T5089] slab_pre_alloc_hook+0x64/0xe8 [ 56.425787][ T5089] kmem_cache_alloc+0x94/0x3d4 [ 56.426526][ T5089] btrfs_alloc_path+0x5c/0x68 [ 56.427311][ T5089] __btrfs_free_extent+0x1a8/0x1abc [ 56.428218][ T5089] __btrfs_run_delayed_refs+0xbf0/0x348c [ 56.429131][ T5089] btrfs_run_delayed_refs+0x124/0x458 [ 56.429967][ T5089] btrfs_commit_transaction+0x1e0/0x3078 [ 56.430863][ T5089] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 56.431734][ T5089] btrfs_ioctl+0x50c/0xa8c [ 56.432382][ T5089] __arm64_sys_ioctl+0x14c/0x1c8 [ 56.433156][ T5089] invoke_syscall+0x98/0x2b0 [ 56.433909][ T5089] el0_svc_common+0x138/0x258 [ 56.434591][ T5089] do_el0_svc+0x58/0x13c [ 56.435312][ T5089] el0_svc+0x78/0x1d0 [ 56.435884][ T5089] el0t_64_sync_handler+0xcc/0xe4 [ 56.436692][ T5089] el0t_64_sync+0x1a0/0x1a4 [ 56.439845][ T5089] BTRFS error (device loop0): failed to run delayed ref for logical 5255168 num_bytes 4096 type 176 action 2 ref_mod 1: -12 [ 56.441934][ T5089] ------------[ cut here ]------------ [ 56.442927][ T5089] WARNING: CPU: 0 PID: 5089 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 56.444515][ T5089] Modules linked in: [ 56.445156][ T5089] CPU: 0 PID: 5089 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 56.446568][ T5089] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 56.448117][ T5089] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 56.449318][ T5089] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 56.450234][ T5089] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 56.451122][ T5089] sp : ffff8000212c77d0 [ 56.451828][ T5089] x29: ffff8000212c77e0 x28: ffff0000c8a53000 x27: dfff800000000000 [ 56.453127][ T5089] x26: ffff0000c8a53024 x25: ffff0000da9b4000 x24: 1fffe0001bdbabef [ 56.454484][ T5089] x23: 1fffe0001bdbabef x22: ffff0000dedd5f78 x21: 00000000fffffff4 [ 56.455794][ T5089] x20: 0000000000000051 x19: ffff0000dedd5f20 x18: 0000000000000001 [ 56.457146][ T5089] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 56.458537][ T5089] x14: 0000000000000001 x13: 1fffe000341f07ab x12: 0000000000ff0100 [ 56.459847][ T5089] x11: 0000000000000000 x10: 0000000000000000 x9 : 4264039738c04800 [ 56.461121][ T5089] x8 : 4264039738c04800 x7 : 0000000000000001 x6 : 0000000000000001 [ 56.462355][ T5089] x5 : ffff8000212c70d8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 56.463661][ T5089] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 56.464898][ T5089] Call trace: [ 56.465445][ T5089] btrfs_run_delayed_refs+0x3e4/0x458 [ 56.466259][ T5089] btrfs_commit_transaction+0x1e0/0x3078 [ 56.467117][ T5089] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 56.468008][ T5089] btrfs_ioctl+0x50c/0xa8c [ 56.468730][ T5089] __arm64_sys_ioctl+0x14c/0x1c8 [ 56.469541][ T5089] invoke_syscall+0x98/0x2b0 [ 56.470261][ T5089] el0_svc_common+0x138/0x258 [ 56.471053][ T5089] do_el0_svc+0x58/0x13c [ 56.471747][ T5089] el0_svc+0x78/0x1d0 [ 56.472371][ T5089] el0t_64_sync_handler+0xcc/0xe4 [ 56.473234][ T5089] el0t_64_sync+0x1a0/0x1a4 [ 56.474009][ T5089] irq event stamp: 78890 [ 56.474692][ T5089] hardirqs last enabled at (78889): [] __up_console_sem+0xb4/0xfc [ 56.476360][ T5089] hardirqs last disabled at (78890): [] el1_dbg+0x24/0x80 [ 56.477853][ T5089] softirqs last enabled at (78858): [] handle_softirqs+0xa40/0xbe4 [ 56.479373][ T5089] softirqs last disabled at (78823): [] __irq_exit_rcu+0x240/0x43c [ 56.480840][ T5089] ---[ end trace 6547c966de0c940b ]--- [ 56.484391][ T5089] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 56.485921][ T5089] BTRFS info (device loop0): forced readonly [ 56.665930][ T5111] loop0: detected capacity change from 0 to 32768 [ 56.709225][ T5111] BTRFS: device fsid d552757d-9c39-40e3-95f0-16d819589928 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5111) [ 56.714184][ T5111] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 56.715789][ T5111] BTRFS info (device loop0): use zlib compression, level 3 [ 56.716917][ T5111] BTRFS info (device loop0): disabling tree log [ 56.718340][ T5111] BTRFS info (device loop0): turning on sync discard [ 56.719416][ T5111] BTRFS info (device loop0): enabling ssd optimizations [ 56.720542][ T5111] BTRFS info (device loop0): using spread ssd allocation scheme [ 56.721740][ T5111] BTRFS info (device loop0): using free space tree [ 56.722720][ T5111] BTRFS info (device loop0): has skinny extents [ 56.732442][ T5111] FAULT_INJECTION: forcing a failure. [ 56.732442][ T5111] name failslab, interval 1, probability 0, space 0, times 0 [ 56.734674][ T5111] CPU: 0 PID: 5111 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 56.736166][ T5111] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 56.737840][ T5111] Call trace: [ 56.738413][ T5111] dump_backtrace+0x0/0x458 [ 56.739176][ T5111] show_stack+0x2c/0x3c [ 56.739903][ T5111] __dump_stack+0x30/0x40 [ 56.740667][ T5111] dump_stack_lvl+0xf4/0x15c [ 56.741458][ T5111] dump_stack+0x1c/0x5c [ 56.742175][ T5111] should_fail+0x3bc/0x514 [ 56.742917][ T5111] __should_failslab+0xbc/0x10c [ 56.743746][ T5111] should_failslab+0x10/0x28 [ 56.744438][ T5111] slab_pre_alloc_hook+0x64/0xe8 [ 56.745222][ T5111] kmem_cache_alloc+0x94/0x3d4 [ 56.745975][ T5111] start_transaction+0x4d0/0x13ec [ 56.746836][ T5111] btrfs_start_transaction+0x34/0x44 [ 56.747667][ T5111] btrfs_ioctl_set_fslabel+0x2bc/0x3d0 [ 56.748481][ T5111] btrfs_ioctl+0x50c/0xa8c [ 56.749105][ T5111] __arm64_sys_ioctl+0x14c/0x1c8 [ 56.749994][ T5111] invoke_syscall+0x98/0x2b0 [ 56.750761][ T5111] el0_svc_common+0x138/0x258 [ 56.751522][ T5111] do_el0_svc+0x58/0x13c [ 56.752234][ T5111] el0_svc+0x78/0x1d0 [ 56.752914][ T5111] el0t_64_sync_handler+0xcc/0xe4 [ 56.753715][ T5111] el0t_64_sync+0x1a0/0x1a4 [ 56.808534][ T4302] BTRFS: device fsid d552757d-9c39-40e3-95f0-16d819589928 devid 1 transid 10 /dev/loop0 scanned by udevd (4302) [ 56.900553][ T5132] loop0: detected capacity change from 0 to 32768 [ 57.010261][ T5132] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 57.011739][ T5132] BTRFS info (device loop0): use zlib compression, level 3 [ 57.013098][ T5132] BTRFS info (device loop0): disabling tree log [ 57.014220][ T5132] BTRFS info (device loop0): turning on sync discard [ 57.015387][ T5132] BTRFS info (device loop0): enabling ssd optimizations [ 57.016594][ T5132] BTRFS info (device loop0): using spread ssd allocation scheme [ 57.018032][ T5132] BTRFS info (device loop0): using free space tree [ 57.019026][ T5132] BTRFS info (device loop0): has skinny extents [ 57.029771][ T5132] FAULT_INJECTION: forcing a failure. [ 57.029771][ T5132] name failslab, interval 1, probability 0, space 0, times 0 [ 57.032074][ T5132] CPU: 0 PID: 5132 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 57.033597][ T5132] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 57.035371][ T5132] Call trace: [ 57.035910][ T5132] dump_backtrace+0x0/0x458 [ 57.036602][ T5132] show_stack+0x2c/0x3c [ 57.037282][ T5132] __dump_stack+0x30/0x40 [ 57.037974][ T5132] dump_stack_lvl+0xf4/0x15c [ 57.038755][ T5132] dump_stack+0x1c/0x5c [ 57.039456][ T5132] should_fail+0x3bc/0x514 [ 57.040159][ T5132] __should_failslab+0xbc/0x10c [ 57.040969][ T5132] should_failslab+0x10/0x28 [ 57.041730][ T5132] slab_pre_alloc_hook+0x64/0xe8 [ 57.042514][ T5132] kmem_cache_alloc+0x94/0x3d4 [ 57.043312][ T5132] btrfs_alloc_path+0x5c/0x68 [ 57.044169][ T5132] __btrfs_free_extent+0x1a8/0x1abc [ 57.045003][ T5132] __btrfs_run_delayed_refs+0xbf0/0x348c [ 57.045941][ T5132] btrfs_run_delayed_refs+0x124/0x458 [ 57.046745][ T5132] btrfs_commit_transaction+0x1e0/0x3078 [ 57.047701][ T5132] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 57.048545][ T5132] btrfs_ioctl+0x50c/0xa8c [ 57.049309][ T5132] __arm64_sys_ioctl+0x14c/0x1c8 [ 57.050177][ T5132] invoke_syscall+0x98/0x2b0 [ 57.050960][ T5132] el0_svc_common+0x138/0x258 [ 57.051692][ T5132] do_el0_svc+0x58/0x13c [ 57.052437][ T5132] el0_svc+0x78/0x1d0 [ 57.053117][ T5132] el0t_64_sync_handler+0xcc/0xe4 [ 57.053919][ T5132] el0t_64_sync+0x1a0/0x1a4 [ 57.055492][ T5132] BTRFS error (device loop0): failed to run delayed ref for logical 5255168 num_bytes 4096 type 176 action 2 ref_mod 1: -12 [ 57.057628][ T5132] ------------[ cut here ]------------ [ 57.058698][ T5132] WARNING: CPU: 0 PID: 5132 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 57.060345][ T5132] Modules linked in: [ 57.061031][ T5132] CPU: 0 PID: 5132 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 57.062567][ T5132] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 57.064274][ T5132] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 57.065650][ T5132] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 57.066622][ T5132] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 57.067555][ T5132] sp : ffff8000212b77d0 [ 57.068234][ T5132] x29: ffff8000212b77e0 x28: ffff0000c8bd9000 x27: dfff800000000000 [ 57.069626][ T5132] x26: ffff0000c8bd9024 x25: ffff0000cdb78000 x24: 1fffe0001bdbab13 [ 57.070880][ T5132] x23: 1fffe0001bdbab13 x22: ffff0000dedd5898 x21: 00000000fffffff4 [ 57.072185][ T5132] x20: 0000000000000051 x19: ffff0000dedd5840 x18: 0000000000000001 [ 57.073547][ T5132] x17: 0000000000000000 x16: ffff800008304ad4 x15: 00000000ffffffff [ 57.074856][ T5132] x14: 0000000000000001 x13: 1ffff00004256e18 x12: 0000000000ff0100 [ 57.076205][ T5132] x11: 0000000000000000 x10: 0000000000000000 x9 : c25666826303c400 [ 57.077621][ T5132] x8 : c25666826303c400 x7 : 0000000000000001 x6 : 0000000000000001 [ 57.079002][ T5132] x5 : ffff8000212b70d8 x4 : ffff80001436f3e0 x3 : ffff800008304be4 [ 57.080242][ T5132] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 57.081478][ T5132] Call trace: [ 57.081980][ T5132] btrfs_run_delayed_refs+0x3e4/0x458 [ 57.082839][ T5132] btrfs_commit_transaction+0x1e0/0x3078 [ 57.083729][ T5132] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 57.084656][ T5132] btrfs_ioctl+0x50c/0xa8c [ 57.085419][ T5132] __arm64_sys_ioctl+0x14c/0x1c8 [ 57.086263][ T5132] invoke_syscall+0x98/0x2b0 [ 57.086978][ T5132] el0_svc_common+0x138/0x258 [ 57.087734][ T5132] do_el0_svc+0x58/0x13c [ 57.088423][ T5132] el0_svc+0x78/0x1d0 [ 57.089075][ T5132] el0t_64_sync_handler+0xcc/0xe4 [ 57.089911][ T5132] el0t_64_sync+0x1a0/0x1a4 [ 57.090671][ T5132] irq event stamp: 79020 [ 57.091320][ T5132] hardirqs last enabled at (79019): [] __up_console_sem+0xb4/0xfc [ 57.092836][ T5132] hardirqs last disabled at (79020): [] el1_dbg+0x24/0x80 [ 57.094242][ T5132] softirqs last enabled at (79010): [] handle_softirqs+0xa40/0xbe4 [ 57.095754][ T5132] softirqs last disabled at (79001): [] __irq_exit_rcu+0x240/0x43c [ 57.097253][ T5132] ---[ end trace 6547c966de0c940c ]--- [ 57.099044][ T5132] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 57.100784][ T5132] BTRFS info (device loop0): forced readonly [ 57.136586][ T4302] BTRFS: device fsid d552757d-9c39-40e3-95f0-16d819589928 devid 1 transid 8 /dev/loop0 scanned by udevd (4302) [ 57.250163][ T5155] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 57.251492][ T5155] BTRFS info (device loop0): use zlib compression, level 3 [ 57.252674][ T5155] BTRFS info (device loop0): disabling tree log [ 57.253742][ T5155] BTRFS info (device loop0): turning on sync discard [ 57.254865][ T5155] BTRFS info (device loop0): enabling ssd optimizations [ 57.255981][ T5155] BTRFS info (device loop0): using spread ssd allocation scheme [ 57.257209][ T5155] BTRFS info (device loop0): using free space tree [ 57.259588][ T5155] BTRFS info (device loop0): has skinny extents [ 57.276561][ T5155] FAULT_INJECTION: forcing a failure. [ 57.276561][ T5155] name failslab, interval 1, probability 0, space 0, times 0 [ 57.278861][ T5155] CPU: 0 PID: 5155 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 57.280343][ T5155] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 57.282021][ T5155] Call trace: [ 57.282544][ T5155] dump_backtrace+0x0/0x458 [ 57.283272][ T5155] show_stack+0x2c/0x3c [ 57.283921][ T5155] __dump_stack+0x30/0x40 [ 57.284577][ T5155] dump_stack_lvl+0xf4/0x15c [ 57.285327][ T5155] dump_stack+0x1c/0x5c [ 57.286026][ T5155] should_fail+0x3bc/0x514 [ 57.286703][ T5155] __should_failslab+0xbc/0x10c [ 57.287465][ T5155] should_failslab+0x10/0x28 [ 57.288244][ T5155] slab_pre_alloc_hook+0x64/0xe8 [ 57.289030][ T5155] kmem_cache_alloc+0x94/0x3d4 [ 57.289812][ T5155] btrfs_alloc_path+0x5c/0x68 [ 57.290551][ T5155] __btrfs_free_extent+0x1a8/0x1abc [ 57.291390][ T5155] __btrfs_run_delayed_refs+0xbf0/0x348c [ 57.292375][ T5155] btrfs_run_delayed_refs+0x124/0x458 [ 57.293253][ T5155] btrfs_commit_transaction+0x1e0/0x3078 [ 57.294162][ T5155] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 57.295062][ T5155] btrfs_ioctl+0x50c/0xa8c [ 57.295751][ T5155] __arm64_sys_ioctl+0x14c/0x1c8 [ 57.296584][ T5155] invoke_syscall+0x98/0x2b0 [ 57.297371][ T5155] el0_svc_common+0x138/0x258 [ 57.298173][ T5155] do_el0_svc+0x58/0x13c [ 57.298849][ T5155] el0_svc+0x78/0x1d0 [ 57.299505][ T5155] el0t_64_sync_handler+0xcc/0xe4 [ 57.300375][ T5155] el0t_64_sync+0x1a0/0x1a4 [ 57.307842][ T5155] BTRFS error (device loop0): failed to run delayed ref for logical 5255168 num_bytes 4096 type 176 action 2 ref_mod 1: -12 [ 57.312274][ T5155] ------------[ cut here ]------------ [ 57.313256][ T5155] WARNING: CPU: 1 PID: 5155 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 57.314924][ T5155] Modules linked in: [ 57.315584][ T5155] CPU: 1 PID: 5155 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 57.316915][ T5155] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 57.318573][ T5155] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 57.319841][ T5155] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 57.320770][ T5155] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 57.321662][ T5155] sp : ffff8000212b77d0 [ 57.322369][ T5155] x29: ffff8000212b77e0 x28: ffff0000c8bda000 x27: dfff800000000000 [ 57.323697][ T5155] x26: ffff0000c8bda024 x25: ffff0000dbb0c000 x24: 1fffe0001bdbaae7 [ 57.325092][ T5155] x23: 1fffe0001bdbaae7 x22: ffff0000dedd5738 x21: 00000000fffffff4 [ 57.326481][ T5155] x20: 0000000000000051 x19: ffff0000dedd56e0 x18: 0000000000000001 [ 57.327789][ T5155] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 57.329084][ T5155] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 57.330457][ T5155] x11: 0000000000000000 x10: 0000000000000000 x9 : a473e08439e7d700 [ 57.331792][ T5155] x8 : a473e08439e7d700 x7 : 0000000000000001 x6 : 0000000000000001 [ 57.333154][ T5155] x5 : ffff8000212b70d8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 57.334524][ T5155] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 57.335895][ T5155] Call trace: [ 57.336405][ T5155] btrfs_run_delayed_refs+0x3e4/0x458 [ 57.337270][ T5155] btrfs_commit_transaction+0x1e0/0x3078 [ 57.338193][ T5155] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 57.339162][ T5155] btrfs_ioctl+0x50c/0xa8c [ 57.339919][ T5155] __arm64_sys_ioctl+0x14c/0x1c8 [ 57.340791][ T5155] invoke_syscall+0x98/0x2b0 [ 57.341598][ T5155] el0_svc_common+0x138/0x258 [ 57.342368][ T5155] do_el0_svc+0x58/0x13c [ 57.343051][ T5155] el0_svc+0x78/0x1d0 [ 57.343681][ T5155] el0t_64_sync_handler+0xcc/0xe4 [ 57.344540][ T5155] el0t_64_sync+0x1a0/0x1a4 [ 57.345268][ T5155] irq event stamp: 80018 [ 57.345976][ T5155] hardirqs last enabled at (80017): [] __up_console_sem+0xb4/0xfc [ 57.347593][ T5155] hardirqs last disabled at (80018): [] el1_dbg+0x24/0x80 [ 57.349090][ T5155] softirqs last enabled at (79978): [] handle_softirqs+0xa40/0xbe4 [ 57.350780][ T5155] softirqs last disabled at (79887): [] __irq_exit_rcu+0x240/0x43c [ 57.352307][ T5155] ---[ end trace 6547c966de0c940d ]--- [ 57.353644][ T5155] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 57.355160][ T5155] BTRFS info (device loop0): forced readonly [ 57.584951][ T5178] BTRFS: device fsid d552757d-9c39-40e3-95f0-16d819589928 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5178) [ 57.590226][ T5178] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 57.591728][ T5178] BTRFS info (device loop0): use zlib compression, level 3 [ 57.592944][ T5178] BTRFS info (device loop0): disabling tree log [ 57.594017][ T5178] BTRFS info (device loop0): turning on sync discard [ 57.606603][ T5178] FAULT_INJECTION: forcing a failure. [ 57.606603][ T5178] name failslab, interval 1, probability 0, space 0, times 0 [ 57.609232][ T5178] CPU: 1 PID: 5178 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 57.610784][ T5178] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 57.612325][ T5178] Call trace: [ 57.612839][ T5178] dump_backtrace+0x0/0x458 [ 57.613528][ T5178] show_stack+0x2c/0x3c [ 57.614178][ T5178] __dump_stack+0x30/0x40 [ 57.614848][ T5178] dump_stack_lvl+0xf4/0x15c [ 57.615604][ T5178] dump_stack+0x1c/0x5c [ 57.616306][ T5178] should_fail+0x3bc/0x514 [ 57.617003][ T5178] __should_failslab+0xbc/0x10c [ 57.617800][ T5178] should_failslab+0x10/0x28 [ 57.618474][ T5178] slab_pre_alloc_hook+0x64/0xe8 [ 57.619263][ T5178] kmem_cache_alloc+0x94/0x3d4 [ 57.619989][ T5178] btrfs_alloc_path+0x5c/0x68 [ 57.620741][ T5178] __btrfs_free_extent+0x1a8/0x1abc [ 57.621548][ T5178] __btrfs_run_delayed_refs+0xbf0/0x348c [ 57.622459][ T5178] btrfs_run_delayed_refs+0x124/0x458 [ 57.623330][ T5178] btrfs_commit_transaction+0x1e0/0x3078 [ 57.624221][ T5178] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 57.625062][ T5178] btrfs_ioctl+0x50c/0xa8c [ 57.625810][ T5178] __arm64_sys_ioctl+0x14c/0x1c8 [ 57.626684][ T5178] invoke_syscall+0x98/0x2b0 [ 57.627433][ T5178] el0_svc_common+0x138/0x258 [ 57.628192][ T5178] do_el0_svc+0x58/0x13c [ 57.628868][ T5178] el0_svc+0x78/0x1d0 [ 57.629527][ T5178] el0t_64_sync_handler+0xcc/0xe4 [ 57.630412][ T5178] el0t_64_sync+0x1a0/0x1a4 [ 57.633394][ T5178] BTRFS error (device loop0): failed to run delayed ref for logical 5255168 num_bytes 4096 type 176 action 2 ref_mod 1: -12 [ 57.635518][ T5178] ------------[ cut here ]------------ [ 57.636534][ T5178] WARNING: CPU: 1 PID: 5178 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 57.638077][ T5178] Modules linked in: [ 57.638763][ T5178] CPU: 1 PID: 5178 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 57.640242][ T5178] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 57.641903][ T5178] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 57.643219][ T5178] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 57.644197][ T5178] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 57.645176][ T5178] sp : ffff8000218977d0 [ 57.645879][ T5178] x29: ffff8000218977e0 x28: ffff0000c2a77000 x27: dfff800000000000 [ 57.647141][ T5178] x26: ffff0000c2a77024 x25: ffff0000dbb0c000 x24: 1fffe0001bd9468f [ 57.648360][ T5178] x23: 1fffe0001bd9468f x22: ffff0000deca3478 x21: 00000000fffffff4 [ 57.649683][ T5178] x20: 0000000000000051 x19: ffff0000deca3420 x18: 0000000000000001 [ 57.650988][ T5178] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 57.652336][ T5178] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 57.653639][ T5178] x11: 0000000000000000 x10: 0000000000000000 x9 : 1d9e527fb6ea4c00 [ 57.654898][ T5178] x8 : 1d9e527fb6ea4c00 x7 : 0000000000000001 x6 : 0000000000000001 [ 57.656058][ T5178] x5 : ffff8000218970d8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 57.657301][ T5178] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 57.658537][ T5178] Call trace: [ 57.659096][ T5178] btrfs_run_delayed_refs+0x3e4/0x458 [ 57.659973][ T5178] btrfs_commit_transaction+0x1e0/0x3078 [ 57.660956][ T5178] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 57.661877][ T5178] btrfs_ioctl+0x50c/0xa8c [ 57.662631][ T5178] __arm64_sys_ioctl+0x14c/0x1c8 [ 57.663489][ T5178] invoke_syscall+0x98/0x2b0 [ 57.664267][ T5178] el0_svc_common+0x138/0x258 [ 57.665076][ T5178] do_el0_svc+0x58/0x13c [ 57.665743][ T5178] el0_svc+0x78/0x1d0 [ 57.666325][ T5178] el0t_64_sync_handler+0xcc/0xe4 [ 57.667139][ T5178] el0t_64_sync+0x1a0/0x1a4 [ 57.667923][ T5178] irq event stamp: 78862 [ 57.668659][ T5178] hardirqs last enabled at (78861): [] __up_console_sem+0xb4/0xfc [ 57.670170][ T5178] hardirqs last disabled at (78862): [] el1_dbg+0x24/0x80 [ 57.671691][ T5178] softirqs last enabled at (78826): [] handle_softirqs+0xa40/0xbe4 [ 57.673352][ T5178] softirqs last disabled at (78809): [] __irq_exit_rcu+0x240/0x43c [ 57.674833][ T5178] ---[ end trace 6547c966de0c940e ]--- [ 57.678402][ T5178] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 57.904994][ T5200] BTRFS: device fsid d552757d-9c39-40e3-95f0-16d819589928 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5200) [ 57.927213][ T5200] FAULT_INJECTION: forcing a failure. [ 57.927213][ T5200] name failslab, interval 1, probability 0, space 0, times 0 [ 57.933159][ T5200] CPU: 1 PID: 5200 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 57.934544][ T5200] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 57.936334][ T5200] Call trace: [ 57.936886][ T5200] dump_backtrace+0x0/0x458 [ 57.937625][ T5200] show_stack+0x2c/0x3c [ 57.938250][ T5200] __dump_stack+0x30/0x40 [ 57.939041][ T5200] dump_stack_lvl+0xf4/0x15c [ 57.939846][ T5200] dump_stack+0x1c/0x5c [ 57.940532][ T5200] should_fail+0x3bc/0x514 [ 57.941273][ T5200] __should_failslab+0xbc/0x10c [ 57.942139][ T5200] should_failslab+0x10/0x28 [ 57.942848][ T5200] slab_pre_alloc_hook+0x64/0xe8 [ 57.943651][ T5200] kmem_cache_alloc+0x94/0x3d4 [ 57.944390][ T5200] start_transaction+0x4d0/0x13ec [ 57.945171][ T5200] btrfs_start_transaction+0x34/0x44 [ 57.946034][ T5200] btrfs_ioctl_set_fslabel+0x2bc/0x3d0 [ 57.946870][ T5200] btrfs_ioctl+0x50c/0xa8c [ 57.947547][ T5200] __arm64_sys_ioctl+0x14c/0x1c8 [ 57.948365][ T5200] invoke_syscall+0x98/0x2b0 [ 57.949137][ T5200] el0_svc_common+0x138/0x258 [ 57.949887][ T5200] do_el0_svc+0x58/0x13c [ 57.950638][ T5200] el0_svc+0x78/0x1d0 [ 57.951279][ T5200] el0t_64_sync_handler+0xcc/0xe4 [ 57.952091][ T5200] el0t_64_sync+0x1a0/0x1a4 1970/01/01 00:00:57 executed programs: 29 [ 58.101309][ T5222] BTRFS: device fsid d552757d-9c39-40e3-95f0-16d819589928 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5222) [ 58.119040][ T5222] FAULT_INJECTION: forcing a failure. [ 58.119040][ T5222] name failslab, interval 1, probability 0, space 0, times 0 [ 58.121289][ T5222] CPU: 1 PID: 5222 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 58.122783][ T5222] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 58.124407][ T5222] Call trace: [ 58.124941][ T5222] dump_backtrace+0x0/0x458 [ 58.125646][ T5222] show_stack+0x2c/0x3c [ 58.126263][ T5222] __dump_stack+0x30/0x40 [ 58.126948][ T5222] dump_stack_lvl+0xf4/0x15c [ 58.127763][ T5222] dump_stack+0x1c/0x5c [ 58.128494][ T5222] should_fail+0x3bc/0x514 [ 58.129268][ T5222] __should_failslab+0xbc/0x10c [ 58.130093][ T5222] should_failslab+0x10/0x28 [ 58.130883][ T5222] slab_pre_alloc_hook+0x64/0xe8 [ 58.131673][ T5222] kmem_cache_alloc+0x94/0x3d4 [ 58.132455][ T5222] start_transaction+0x4d0/0x13ec [ 58.133285][ T5222] btrfs_start_transaction+0x34/0x44 [ 58.134130][ T5222] btrfs_ioctl_set_fslabel+0x2bc/0x3d0 [ 58.134941][ T5222] btrfs_ioctl+0x50c/0xa8c [ 58.135711][ T5222] __arm64_sys_ioctl+0x14c/0x1c8 [ 58.136597][ T5222] invoke_syscall+0x98/0x2b0 [ 58.137354][ T5222] el0_svc_common+0x138/0x258 [ 58.138113][ T5222] do_el0_svc+0x58/0x13c [ 58.138835][ T5222] el0_svc+0x78/0x1d0 [ 58.139529][ T5222] el0t_64_sync_handler+0xcc/0xe4 [ 58.140324][ T5222] el0t_64_sync+0x1a0/0x1a4 [ 58.179830][ T4302] BTRFS: device fsid d552757d-9c39-40e3-95f0-16d819589928 devid 1 transid 10 /dev/loop0 scanned by udevd (4302) [ 58.431957][ T5243] FAULT_INJECTION: forcing a failure. [ 58.431957][ T5243] name failslab, interval 1, probability 0, space 0, times 0 [ 58.434155][ T5243] CPU: 1 PID: 5243 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 58.435510][ T5243] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 58.437177][ T5243] Call trace: [ 58.437802][ T5243] dump_backtrace+0x0/0x458 [ 58.438577][ T5243] show_stack+0x2c/0x3c [ 58.439290][ T5243] __dump_stack+0x30/0x40 [ 58.440018][ T5243] dump_stack_lvl+0xf4/0x15c [ 58.440749][ T5243] dump_stack+0x1c/0x5c [ 58.441422][ T5243] should_fail+0x3bc/0x514 [ 58.442151][ T5243] __should_failslab+0xbc/0x10c [ 58.442890][ T5243] should_failslab+0x10/0x28 [ 58.443735][ T5243] slab_pre_alloc_hook+0x64/0xe8 [ 58.444604][ T5243] kmem_cache_alloc+0x94/0x3d4 [ 58.445369][ T5243] btrfs_alloc_path+0x5c/0x68 [ 58.446134][ T5243] __btrfs_run_delayed_refs+0xe70/0x348c [ 58.446972][ T5243] btrfs_run_delayed_refs+0x124/0x458 [ 58.447872][ T5243] btrfs_commit_transaction+0x1e0/0x3078 [ 58.448810][ T5243] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 58.449685][ T5243] btrfs_ioctl+0x50c/0xa8c [ 58.450408][ T5243] __arm64_sys_ioctl+0x14c/0x1c8 [ 58.451205][ T5243] invoke_syscall+0x98/0x2b0 [ 58.451939][ T5243] el0_svc_common+0x138/0x258 [ 58.452722][ T5243] do_el0_svc+0x58/0x13c [ 58.453382][ T5243] el0_svc+0x78/0x1d0 [ 58.454062][ T5243] el0t_64_sync_handler+0xcc/0xe4 [ 58.454974][ T5243] el0t_64_sync+0x1a0/0x1a4 [ 58.457307][ T5243] BTRFS error (device loop0): failed to run delayed ref for logical 5242880 num_bytes 4096 type 176 action 1 ref_mod 1: -12 [ 58.459576][ T5243] ------------[ cut here ]------------ [ 58.460512][ T5243] WARNING: CPU: 1 PID: 5243 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 58.462155][ T5243] Modules linked in: [ 58.462792][ T5243] CPU: 1 PID: 5243 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 58.464192][ T5243] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 58.465826][ T5243] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 58.467075][ T5243] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 58.468081][ T5243] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 58.469041][ T5243] sp : ffff800021fa77d0 [ 58.469751][ T5243] x29: ffff800021fa77e0 x28: ffff0000c8603000 x27: dfff800000000000 [ 58.471060][ T5243] x26: ffff0000c8603024 x25: ffff0000d3cc4000 x24: 1fffe0001bd947ad [ 58.472377][ T5243] x23: 1fffe0001bd947ad x22: ffff0000deca3d68 x21: 00000000fffffff4 [ 58.473525][ T5243] x20: 0000000000000051 x19: ffff0000deca3d10 x18: 0000000000000001 [ 58.474750][ T5243] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 58.476023][ T5243] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 58.477246][ T5243] x11: 0000000000000000 x10: 0000000000000000 x9 : cb954ae224f9ea00 [ 58.478629][ T5243] x8 : cb954ae224f9ea00 x7 : 0000000000000001 x6 : 0000000000000001 [ 58.480035][ T5243] x5 : ffff800021fa70d8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 58.481314][ T5243] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 58.482768][ T5243] Call trace: [ 58.483343][ T5243] btrfs_run_delayed_refs+0x3e4/0x458 [ 58.484208][ T5243] btrfs_commit_transaction+0x1e0/0x3078 [ 58.485165][ T5243] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 58.486114][ T5243] btrfs_ioctl+0x50c/0xa8c [ 58.486884][ T5243] __arm64_sys_ioctl+0x14c/0x1c8 [ 58.487677][ T5243] invoke_syscall+0x98/0x2b0 [ 58.488420][ T5243] el0_svc_common+0x138/0x258 [ 58.489168][ T5243] do_el0_svc+0x58/0x13c [ 58.489842][ T5243] el0_svc+0x78/0x1d0 [ 58.490490][ T5243] el0t_64_sync_handler+0xcc/0xe4 [ 58.491394][ T5243] el0t_64_sync+0x1a0/0x1a4 [ 58.492203][ T5243] irq event stamp: 79500 [ 58.492912][ T5243] hardirqs last enabled at (79499): [] __up_console_sem+0xb4/0xfc [ 58.494477][ T5243] hardirqs last disabled at (79500): [] el1_dbg+0x24/0x80 [ 58.495882][ T5243] softirqs last enabled at (79476): [] handle_softirqs+0xa40/0xbe4 [ 58.497551][ T5243] softirqs last disabled at (79467): [] __irq_exit_rcu+0x240/0x43c [ 58.499156][ T5243] ---[ end trace 6547c966de0c940f ]--- [ 58.502509][ T5243] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 58.703744][ T5266] BTRFS: device fsid d552757d-9c39-40e3-95f0-16d819589928 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5266) [ 58.728046][ T5266] FAULT_INJECTION: forcing a failure. [ 58.728046][ T5266] name failslab, interval 1, probability 0, space 0, times 0 [ 58.730122][ T5266] CPU: 1 PID: 5266 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 58.731584][ T5266] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 58.733112][ T5266] Call trace: [ 58.733595][ T5266] dump_backtrace+0x0/0x458 [ 58.734354][ T5266] show_stack+0x2c/0x3c [ 58.735067][ T5266] __dump_stack+0x30/0x40 [ 58.735750][ T5266] dump_stack_lvl+0xf4/0x15c [ 58.736468][ T5266] dump_stack+0x1c/0x5c [ 58.737150][ T5266] should_fail+0x3bc/0x514 [ 58.737867][ T5266] __should_failslab+0xbc/0x10c [ 58.738642][ T5266] should_failslab+0x10/0x28 [ 58.739417][ T5266] slab_pre_alloc_hook+0x64/0xe8 [ 58.740296][ T5266] kmem_cache_alloc+0x94/0x3d4 [ 58.741169][ T5266] btrfs_alloc_path+0x5c/0x68 [ 58.741888][ T5266] __btrfs_free_extent+0x1a8/0x1abc [ 58.742694][ T5266] __btrfs_run_delayed_refs+0xbf0/0x348c [ 58.743554][ T5266] btrfs_run_delayed_refs+0x124/0x458 [ 58.744465][ T5266] btrfs_commit_transaction+0x1e0/0x3078 [ 58.745393][ T5266] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 58.746286][ T5266] btrfs_ioctl+0x50c/0xa8c [ 58.746950][ T5266] __arm64_sys_ioctl+0x14c/0x1c8 [ 58.747711][ T5266] invoke_syscall+0x98/0x2b0 [ 58.748508][ T5266] el0_svc_common+0x138/0x258 [ 58.749298][ T5266] do_el0_svc+0x58/0x13c [ 58.749986][ T5266] el0_svc+0x78/0x1d0 [ 58.750672][ T5266] el0t_64_sync_handler+0xcc/0xe4 [ 58.751499][ T5266] el0t_64_sync+0x1a0/0x1a4 [ 58.753711][ T5266] BTRFS error (device loop0): failed to run delayed ref for logical 5255168 num_bytes 4096 type 176 action 2 ref_mod 1: -12 [ 58.755773][ T5266] ------------[ cut here ]------------ [ 58.756868][ T5266] WARNING: CPU: 1 PID: 5266 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 58.758469][ T5266] Modules linked in: [ 58.759106][ T5266] CPU: 1 PID: 5266 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 58.760562][ T5266] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 58.762327][ T5266] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 58.763596][ T5266] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 58.764466][ T5266] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 58.765311][ T5266] sp : ffff800021fa77d0 [ 58.765919][ T5266] x29: ffff800021fa77e0 x28: ffff0000c2998000 x27: dfff800000000000 [ 58.767252][ T5266] x26: ffff0000c2998024 x25: ffff0000da184000 x24: 1fffe0001bd947c3 [ 58.768588][ T5266] x23: 1fffe0001bd947c3 x22: ffff0000deca3e18 x21: 00000000fffffff4 [ 58.769938][ T5266] x20: 0000000000000051 x19: ffff0000deca3dc0 x18: 0000000000000001 [ 58.771201][ T5266] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 58.772520][ T5266] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 58.773813][ T5266] x11: 0000000000000000 x10: 0000000000000000 x9 : f0856edc1b224c00 [ 58.775143][ T5266] x8 : f0856edc1b224c00 x7 : 0000000000000001 x6 : 0000000000000001 [ 58.776468][ T5266] x5 : ffff800021fa70d8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 58.777752][ T5266] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 58.779129][ T5266] Call trace: [ 58.779656][ T5266] btrfs_run_delayed_refs+0x3e4/0x458 [ 58.780508][ T5266] btrfs_commit_transaction+0x1e0/0x3078 [ 58.781399][ T5266] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 58.782240][ T5266] btrfs_ioctl+0x50c/0xa8c [ 58.782950][ T5266] __arm64_sys_ioctl+0x14c/0x1c8 [ 58.783779][ T5266] invoke_syscall+0x98/0x2b0 [ 58.784557][ T5266] el0_svc_common+0x138/0x258 [ 58.785334][ T5266] do_el0_svc+0x58/0x13c [ 58.786059][ T5266] el0_svc+0x78/0x1d0 [ 58.786676][ T5266] el0t_64_sync_handler+0xcc/0xe4 [ 58.787469][ T5266] el0t_64_sync+0x1a0/0x1a4 [ 58.788161][ T5266] irq event stamp: 78788 [ 58.788778][ T5266] hardirqs last enabled at (78787): [] __up_console_sem+0xb4/0xfc [ 58.790413][ T5266] hardirqs last disabled at (78788): [] el1_dbg+0x24/0x80 [ 58.791877][ T5266] softirqs last enabled at (78756): [] handle_softirqs+0xa40/0xbe4 [ 58.793455][ T5266] softirqs last disabled at (78735): [] __irq_exit_rcu+0x240/0x43c [ 58.794847][ T5266] ---[ end trace 6547c966de0c9410 ]--- [ 58.798080][ T5266] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory [ 59.004212][ T5288] BTRFS: device fsid d552757d-9c39-40e3-95f0-16d819589928 devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5288) [ 59.018771][ T5288] FAULT_INJECTION: forcing a failure. [ 59.018771][ T5288] name failslab, interval 1, probability 0, space 0, times 0 [ 59.021119][ T5288] CPU: 1 PID: 5288 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 59.022565][ T5288] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 59.024249][ T5288] Call trace: [ 59.024749][ T5288] dump_backtrace+0x0/0x458 [ 59.025438][ T5288] show_stack+0x2c/0x3c [ 59.026136][ T5288] __dump_stack+0x30/0x40 [ 59.026856][ T5288] dump_stack_lvl+0xf4/0x15c [ 59.027571][ T5288] dump_stack+0x1c/0x5c [ 59.028195][ T5288] should_fail+0x3bc/0x514 [ 59.028894][ T5288] __should_failslab+0xbc/0x10c [ 59.029667][ T5288] should_failslab+0x10/0x28 [ 59.030386][ T5288] slab_pre_alloc_hook+0x64/0xe8 [ 59.031191][ T5288] kmem_cache_alloc+0x94/0x3d4 [ 59.032003][ T5288] btrfs_alloc_path+0x5c/0x68 [ 59.032756][ T5288] __btrfs_free_extent+0x1a8/0x1abc [ 59.033622][ T5288] __btrfs_run_delayed_refs+0xbf0/0x348c [ 59.034469][ T5288] btrfs_run_delayed_refs+0x124/0x458 [ 59.035246][ T5288] btrfs_commit_transaction+0x1e0/0x3078 [ 59.036148][ T5288] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 59.037106][ T5288] btrfs_ioctl+0x50c/0xa8c [ 59.037847][ T5288] __arm64_sys_ioctl+0x14c/0x1c8 [ 59.038639][ T5288] invoke_syscall+0x98/0x2b0 [ 59.039378][ T5288] el0_svc_common+0x138/0x258 [ 59.040199][ T5288] do_el0_svc+0x58/0x13c [ 59.040924][ T5288] el0_svc+0x78/0x1d0 [ 59.041600][ T5288] el0t_64_sync_handler+0xcc/0xe4 [ 59.042351][ T5288] el0t_64_sync+0x1a0/0x1a4 [ 59.044987][ T5288] BTRFS error (device loop0): failed to run delayed ref for logical 5255168 num_bytes 4096 type 176 action 2 ref_mod 1: -12 [ 59.047189][ T5288] ------------[ cut here ]------------ [ 59.048727][ T5288] WARNING: CPU: 1 PID: 5288 at fs/btrfs/extent-tree.c:2173 btrfs_run_delayed_refs+0x3e4/0x458 [ 59.050388][ T5288] Modules linked in: [ 59.051000][ T5288] CPU: 1 PID: 5288 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 59.052483][ T5288] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 59.054099][ T5288] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 59.055290][ T5288] pc : btrfs_run_delayed_refs+0x3e4/0x458 [ 59.056185][ T5288] lr : btrfs_run_delayed_refs+0x3e4/0x458 [ 59.057153][ T5288] sp : ffff800021fa77d0 [ 59.057833][ T5288] x29: ffff800021fa77e0 x28: ffff0000d1993000 x27: dfff800000000000 [ 59.059050][ T5288] x26: ffff0000d1993024 x25: ffff0000cadb4000 x24: 1fffe0001bd947ef [ 59.060213][ T5288] x23: 1fffe0001bd947ef x22: ffff0000deca3f78 x21: 00000000fffffff4 [ 59.061457][ T5288] x20: 0000000000000051 x19: ffff0000deca3f20 x18: 0000000000000001 [ 59.062690][ T5288] x17: 0000000000000000 x16: ffff800011255484 x15: 00000000ffffffff [ 59.063974][ T5288] x14: 0000000000000001 x13: 1fffe000341f49ab x12: 0000000000ff0100 [ 59.065285][ T5288] x11: 0000000000000000 x10: 0000000000000000 x9 : a87fd99360335200 [ 59.066640][ T5288] x8 : a87fd99360335200 x7 : 0000000000000001 x6 : 0000000000000001 [ 59.067975][ T5288] x5 : ffff800021fa70d8 x4 : ffff80001436f3e0 x3 : ffff800008508fa8 [ 59.069284][ T5288] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 [ 59.070630][ T5288] Call trace: [ 59.071175][ T5288] btrfs_run_delayed_refs+0x3e4/0x458 [ 59.072040][ T5288] btrfs_commit_transaction+0x1e0/0x3078 [ 59.072968][ T5288] btrfs_ioctl_set_fslabel+0x2f8/0x3d0 [ 59.073924][ T5288] btrfs_ioctl+0x50c/0xa8c [ 59.074636][ T5288] __arm64_sys_ioctl+0x14c/0x1c8 [ 59.075485][ T5288] invoke_syscall+0x98/0x2b0 [ 59.076237][ T5288] el0_svc_common+0x138/0x258 [ 59.076971][ T5288] do_el0_svc+0x58/0x13c [ 59.077657][ T5288] el0_svc+0x78/0x1d0 [ 59.078305][ T5288] el0t_64_sync_handler+0xcc/0xe4 [ 59.079102][ T5288] el0t_64_sync+0x1a0/0x1a4 [ 59.079808][ T5288] irq event stamp: 78788 [ 59.080542][ T5288] hardirqs last enabled at (78787): [] __up_console_sem+0xb4/0xfc [ 59.082007][ T5288] hardirqs last disabled at (78788): [] el1_dbg+0x24/0x80 [ 59.083354][ T5288] softirqs last enabled at (78776): [] handle_softirqs+0xa40/0xbe4 [ 59.084853][ T5288] softirqs last disabled at (78727): [] __irq_exit_rcu+0x240/0x43c [ 59.086239][ T5288] ---[ end trace 6547c966de0c9411 ]--- [ 59.089334][ T5288] BTRFS: error (device loop0) in btrfs_run_delayed_refs:2173: errno=-12 Out of memory