Warning: Permanently added '10.128.0.234' (ED25519) to the list of known hosts. executing program executing program executing program executing program executing program [ 44.584967][ T4308] loop0: detected capacity change from 0 to 32768 [ 44.635066][ T4308] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz-executor335 (4308) [ 44.678508][ T4308] BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 44.681191][ T4308] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 44.683132][ T4308] BTRFS info (device loop0): setting nodatacow, compression disabled [ 44.685170][ T4308] BTRFS info (device loop0): force zlib compression, level 3 [ 44.717391][ T4308] BTRFS info (device loop0): turning off barriers [ 44.727436][ T4308] BTRFS info (device loop0): max_inline at 6 [ 44.729061][ T4308] BTRFS info (device loop0): enabling ssd optimizations [ 44.737433][ T4308] BTRFS info (device loop0): using spread ssd allocation scheme [ 44.739372][ T4308] BTRFS info (device loop0): setting nodatacow [ 44.740841][ T4308] BTRFS info (device loop0): using free space tree [ 44.813409][ T4303] loop2: detected capacity change from 0 to 32768 [ 44.835002][ T4303] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor335 (4303) [ 44.850314][ T4312] loop1: detected capacity change from 0 to 32768 [ 44.860507][ T4312] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by syz-executor335 (4312) [ 44.890239][ T4311] loop4: detected capacity change from 0 to 32768 executing program [ 44.894662][ T4311] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor335 (4311) [ 44.905505][ T4307] loop3: detected capacity change from 0 to 32768 [ 44.912092][ T4307] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor335 (4307) executing program [ 44.925794][ T4308] BTRFS info (device loop0): balance: start -d -m [ 44.947479][ T4335] I/O error, dev loop4, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 44.974403][ T4308] BTRFS info (device loop0): relocating block group 6881280 flags data|metadata [ 45.088262][ T4337] BTRFS info (device loop0): scrub: started on devid 1 [ 45.098584][ T4337] BTRFS info (device loop0): left=0, need=98304, flags=2 [ 45.106528][ T4337] BTRFS info (device loop0): space_info SYSTEM has 0 free, is not full [ 45.108765][ T4337] BTRFS info (device loop0): space_info total=4194304, used=4096, pinned=0, reserved=0, may_use=0, readonly=4190208 zone_unusable=0 [ 45.111815][ T4337] BTRFS info (device loop0): global_block_rsv: size 1441792 reserved 1441792 [ 45.114042][ T4337] BTRFS info (device loop0): trans_block_rsv: size 0 reserved 0 [ 45.115887][ T4337] BTRFS info (device loop0): chunk_block_rsv: size 0 reserved 0 [ 45.117894][ T4337] BTRFS info (device loop0): delayed_block_rsv: size 0 reserved 0 [ 45.119579][ T4337] BTRFS info (device loop0): delayed_refs_rsv: size 262144 reserved 163840 [ 45.170682][ T4308] BTRFS info (device loop0): left=0, need=98304, flags=5 [ 45.172415][ T4308] BTRFS info (device loop0): space_info SYSTEM has 0 free, is not full [ 45.174388][ T4308] BTRFS info (device loop0): space_info total=4194304, used=4096, pinned=0, reserved=0, may_use=0, readonly=4190208 zone_unusable=0 [ 45.177545][ T4308] BTRFS info (device loop0): global_block_rsv: size 1441792 reserved 1437696 [ 45.179595][ T4308] BTRFS info (device loop0): trans_block_rsv: size 262144 reserved 262144 [ 45.181527][ T4308] BTRFS info (device loop0): chunk_block_rsv: size 0 reserved 0 [ 45.183482][ T4308] BTRFS info (device loop0): delayed_block_rsv: size 0 reserved 0 [ 45.185266][ T4308] BTRFS info (device loop0): delayed_refs_rsv: size 524288 reserved 163840 [ 45.192377][ T4308] BTRFS error (device loop0): allocation failed flags 2, wanted 4096 tree-log 0, relocation: 0 [ 45.197143][ T4305] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by udevd (4305) [ 45.202429][ T4337] BTRFS info (device loop0): unable to make block group 8519680 ro [ 45.204368][ T4337] BTRFS info (device loop0): space_info DATA+METADATA has 7962624 free, is not full [ 45.206588][ T4337] BTRFS info (device loop0): space_info total=11534336, used=61440, pinned=0, reserved=8192, may_use=1863680, readonly=1638400 zone_unusable=0 [ 45.210179][ T4337] BTRFS info (device loop0): global_block_rsv: size 1441792 reserved 1437696 [ 45.212484][ T4337] BTRFS info (device loop0): trans_block_rsv: size 262144 reserved 262144 [ 45.214430][ T4337] BTRFS info (device loop0): chunk_block_rsv: size 0 reserved 0 [ 45.216277][ T4337] BTRFS info (device loop0): delayed_block_rsv: size 0 reserved 0 [ 45.218192][ T4337] BTRFS info (device loop0): delayed_refs_rsv: size 524288 reserved 163840 [ 45.222603][ T4313] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by udevd (4313) [ 45.260125][ T4308] BTRFS info (device loop0): space_info SYSTEM has 4186112 free, is not full [ 45.262309][ T4308] BTRFS info (device loop0): space_info total=4194304, used=4096, pinned=0, reserved=0, may_use=4096, readonly=0 zone_unusable=0 [ 45.265627][ T4308] BTRFS info (device loop0): global_block_rsv: size 1441792 reserved 1437696 [ 45.267891][ T4308] BTRFS info (device loop0): trans_block_rsv: size 262144 reserved 262144 [ 45.269887][ T4308] BTRFS info (device loop0): chunk_block_rsv: size 0 reserved 0 [ 45.271839][ T4308] BTRFS info (device loop0): delayed_block_rsv: size 0 reserved 0 [ 45.273732][ T4308] BTRFS info (device loop0): delayed_refs_rsv: size 524288 reserved 163840 executing program executing program [ 45.304763][ T4308] BTRFS info (device loop0): block group 1048576 has 4194304 bytes, 4096 used 0 pinned 0 reserved 0 zone_unusable [ 45.325061][ T4308] BTRFS critical (device loop0): entry offset 1048576, bytes 8192, bitmap no [ 45.327207][ T4308] BTRFS critical (device loop0): entry offset 1060864, bytes 4182016, bitmap no [ 45.363822][ T4308] BTRFS info (device loop0): block group has cluster?: no [ 45.365627][ T4308] BTRFS info (device loop0): 2 blocks of free space at or bigger than bytes is [ 45.384269][ T4308] ------------[ cut here ]------------ [ 45.385847][ T4308] WARNING: CPU: 1 PID: 4308 at fs/btrfs/volumes.c:3259 btrfs_remove_chunk+0x1158/0x17b0 [ 45.388170][ T4308] Modules linked in: [ 45.389079][ T4308] CPU: 1 PID: 4308 Comm: syz-executor335 Not tainted 6.1.140-syzkaller #0 [ 45.391135][ T4308] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 45.393641][ T4308] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 45.395501][ T4308] pc : btrfs_remove_chunk+0x1158/0x17b0 [ 45.396876][ T4308] lr : btrfs_remove_chunk+0x1158/0x17b0 [ 45.398231][ T4308] sp : ffff800020807700 [ 45.399168][ T4308] x29: ffff800020807860 x28: ffff0000c068b2a0 x27: 0000000000000001 [ 45.401108][ T4308] x26: ffff8000208077a0 x25: ffffffffffffffe4 x24: 1fffe000180d165d [ 45.403013][ T4308] x23: ffff0000c068b2ec x22: 0000000000690000 x21: dfff800000000000 [ 45.404987][ T4308] x20: 0000000000000000 x19: 0000000000000000 x18: ffff800011a7bd00 [ 45.406904][ T4308] x17: 0000000000000000 x16: ffff8000082d1c1c x15: 0000000000000000 [ 45.408861][ T4308] x14: 00000000ffffffff x13: 0000000000000001 x12: 0000000000ff0100 [ 45.410747][ T4308] x11: ff008000081913ec x10: 0000000000000000 x9 : 3cb8bb37a05c3900 [ 45.412736][ T4308] x8 : 3cb8bb37a05c3900 x7 : 0000000000000001 x6 : 0000000000000001 [ 45.414673][ T4308] x5 : ffff800020807198 x4 : ffff800015154740 x3 : ffff80000852df5c [ 45.416687][ T4308] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000000 [ 45.418704][ T4308] Call trace: [ 45.419512][ T4308] btrfs_remove_chunk+0x1158/0x17b0 [ 45.420750][ T4308] btrfs_relocate_chunk+0x24c/0x364 [ 45.422029][ T4308] __btrfs_balance+0x1390/0x1af8 [ 45.423170][ T4308] btrfs_balance+0xa44/0xe20 [ 45.424302][ T4308] btrfs_ioctl_balance+0x3c0/0x5f8 [ 45.425556][ T4308] btrfs_ioctl+0xac4/0xbd0 [ 45.426567][ T4308] __arm64_sys_ioctl+0x14c/0x1c8 [ 45.427721][ T4308] invoke_syscall+0x98/0x2bc [ 45.428862][ T4308] el0_svc_common+0x138/0x258 [ 45.430030][ T4308] do_el0_svc+0x58/0x13c [ 45.431089][ T4308] el0_svc+0x58/0x138 [ 45.432092][ T4308] el0t_64_sync_handler+0x84/0xf0 [ 45.433284][ T4308] el0t_64_sync+0x18c/0x190 [ 45.434390][ T4308] irq event stamp: 69648 [ 45.435431][ T4308] hardirqs last enabled at (69647): [] __up_console_sem+0xb4/0x100 [ 45.437723][ T4308] hardirqs last disabled at (69648): [] el1_dbg+0x24/0x80 [ 45.439856][ T4308] softirqs last enabled at (69594): [] handle_softirqs+0xaf8/0xc6c [ 45.442226][ T4308] softirqs last disabled at (69585): [] __do_softirq+0x14/0x20 [ 45.444503][ T4308] ---[ end trace 0000000000000000 ]--- [ 45.472910][ T4308] BTRFS info (device loop0: state A): dumping space info: [ 45.474661][ T4308] BTRFS info (device loop0: state A): space_info DATA+METADATA has 7962624 free, is not full [ 45.476942][ T4308] BTRFS info (device loop0: state A): space_info total=11534336, used=61440, pinned=0, reserved=8192, may_use=1863680, readonly=1638400 zone_unusable=0 [ 45.481521][ T4308] BTRFS info (device loop0: state A): space_info SYSTEM has 4190208 free, is not full [ 45.483828][ T4308] BTRFS info (device loop0: state A): space_info total=4194304, used=4096, pinned=0, reserved=0, may_use=0, readonly=0 zone_unusable=0 [ 45.487130][ T4308] BTRFS info (device loop0: state A): global_block_rsv: size 1441792 reserved 1437696 [ 45.489711][ T4308] BTRFS info (device loop0: state A): trans_block_rsv: size 262144 reserved 262144 [ 45.491909][ T4308] BTRFS info (device loop0: state A): chunk_block_rsv: size 0 reserved 0 [ 45.493863][ T4308] BTRFS info (device loop0: state A): delayed_block_rsv: size 0 reserved 0 [ 45.495854][ T4308] BTRFS info (device loop0: state A): delayed_refs_rsv: size 524288 reserved 163840 [ 45.498423][ T4308] BTRFS: error (device loop0: state A) in btrfs_remove_chunk:3259: errno=-28 No space left [ 45.500752][ T4308] BTRFS info (device loop0: state EA): forced readonly [ 45.503063][ T4337] BTRFS info (device loop0: state EA): scrub: finished on devid 1 with status: 0 [ 45.510882][ T4308] BTRFS info (device loop0: state EA): 1 enospc errors during balance [ 45.512877][ T4308] BTRFS info (device loop0: state EA): balance: ended with status: -30 executing program [ 45.641103][ T4334] loop1: detected capacity change from 0 to 32768 [ 45.678221][ T4334] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by syz-executor335 (4334) executing program [ 45.784246][ T4341] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by udevd (4341) [ 45.824183][ T4336] loop2: detected capacity change from 0 to 32768 [ 45.858950][ T4336] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor335 (4336) executing program [ 45.960773][ T4347] loop4: detected capacity change from 0 to 32768 [ 45.977789][ T4313] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by udevd (4313) [ 45.998648][ T4347] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor335 (4347) executing program [ 46.153105][ T4341] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by udevd (4341) [ 46.256590][ T4346] loop3: detected capacity change from 0 to 32768 [ 46.297875][ T4346] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor335 (4346) executing program executing program [ 46.369619][ T4354] loop1: detected capacity change from 0 to 32768 [ 46.417575][ T4354] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by syz-executor335 (4354) [ 46.437198][ T4305] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by udevd (4305) executing program [ 46.493782][ T4313] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by udevd (4313) [ 46.647964][ T4356] loop2: detected capacity change from 0 to 32768 [ 46.686623][ T4356] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor335 (4356) executing program [ 46.761124][ T4313] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by udevd (4313) [ 46.794562][ T4358] loop4: detected capacity change from 0 to 32768 [ 46.831703][ T4358] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor335 (4358) [ 46.858693][ T4363] loop3: detected capacity change from 0 to 32768 executing program [ 46.880832][ T4363] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor335 (4363) executing program [ 46.933496][ T4341] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by udevd (4341) [ 46.991825][ T4313] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by udevd (4313) [ 47.182393][ T4367] loop1: detected capacity change from 0 to 32768 [ 47.225470][ T4367] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by syz-executor335 (4367) executing program [ 47.337915][ T4341] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by udevd (4341) executing program [ 47.465998][ T4371] loop4: detected capacity change from 0 to 32768 [ 47.471151][ T4369] loop2: detected capacity change from 0 to 32768 [ 47.480713][ T4369] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor335 (4369) [ 47.484425][ T4371] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor335 (4371) executing program executing program [ 47.601460][ T4341] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by udevd (4341) [ 47.610366][ T4313] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by udevd (4313) [ 47.725673][ T4373] loop3: detected capacity change from 0 to 32768 [ 47.747513][ T4373] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor335 (4373) executing program [ 47.877161][ T4305] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by udevd (4305) [ 48.015142][ T4376] loop1: detected capacity change from 0 to 32768 [ 48.055089][ T4376] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by syz-executor335 (4376) executing program [ 48.133070][ T4384] loop3: detected capacity change from 0 to 32768 [ 48.153565][ T4341] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by udevd (4341) [ 48.162847][ T4384] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor335 (4384) executing program executing program [ 48.349944][ T4305] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by udevd (4305) [ 48.362223][ T4382] loop2: detected capacity change from 0 to 32768 [ 48.368751][ T4382] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor335 (4382) [ 48.418999][ T4381] loop4: detected capacity change from 0 to 32768 executing program [ 48.458357][ T4381] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor335 (4381) executing program [ 48.510579][ T4313] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by udevd (4313) [ 48.626164][ T4341] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by udevd (4341) [ 48.663103][ T4391] loop3: detected capacity change from 0 to 32768 [ 48.670650][ T4391] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor335 (4391) executing program [ 48.787679][ T4313] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by udevd (4313) [ 48.902809][ T4386] loop1: detected capacity change from 0 to 32768 [ 48.939079][ T4386] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by syz-executor335 (4386) executing program [ 49.009579][ T4313] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by udevd (4313) [ 49.133830][ T4395] loop4: detected capacity change from 0 to 32768 [ 49.146184][ T4395] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor335 (4395) [ 49.173700][ T4393] loop2: detected capacity change from 0 to 32768 executing program [ 49.192917][ T4393] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor335 (4393) executing program [ 49.281533][ T4313] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by udevd (4313) [ 49.296175][ T4397] loop3: detected capacity change from 0 to 32768 executing program [ 49.359470][ T4397] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor335 (4397) [ 49.394253][ T4305] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by udevd (4305) [ 49.417417][ T4335] I/O error, dev loop3, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 executing program [ 49.741765][ T4403] loop4: detected capacity change from 0 to 32768 [ 49.759591][ T4403] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor335 (4403) [ 49.768239][ T4399] loop1: detected capacity change from 0 to 32768 [ 49.789079][ T4399] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by syz-executor335 (4399) executing program [ 49.821094][ T4405] loop2: detected capacity change from 0 to 32768 executing program [ 49.832561][ T4313] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by udevd (4313) [ 49.867519][ T4405] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor335 (4405) [ 49.905671][ T4341] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by udevd (4341) executing program [ 50.103602][ T4305] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by udevd (4305) executing program [ 50.356246][ T4409] loop3: detected capacity change from 0 to 32768 [ 50.368270][ T4409] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor335 (4409) executing program [ 50.458653][ T4313] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by udevd (4313) [ 50.511919][ T4412] loop4: detected capacity change from 0 to 32768 [ 50.586426][ T4412] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor335 (4412) [ 50.636563][ T4415] loop2: detected capacity change from 0 to 32768 executing program [ 50.652074][ T4305] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by udevd (4305) [ 50.655599][ T4413] loop1: detected capacity change from 0 to 32768 [ 50.663336][ T4413] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by syz-executor335 (4413) [ 50.666980][ T4415] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor335 (4415) executing program executing program executing program [ 50.856101][ T4335] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by udevd (4335) [ 50.950294][ T4313] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by udevd (4313) [ 51.119926][ T4420] loop3: detected capacity change from 0 to 32768 [ 51.131514][ T4420] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor335 (4420) executing program [ 51.217142][ T4313] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by udevd (4313) [ 51.377662][ T4423] loop4: detected capacity change from 0 to 32768 [ 51.392605][ T4423] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor335 (4423) [ 51.414840][ T4426] loop1: detected capacity change from 0 to 32768 [ 51.437757][ T4426] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by syz-executor335 (4426) [ 51.439219][ T4427] loop2: detected capacity change from 0 to 32768 [ 51.449679][ T4427] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor335 (4427) executing program executing program executing program executing program [ 51.641558][ T4341] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by udevd (4341) [ 51.661484][ T4305] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by udevd (4305) [ 51.674969][ T4335] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by udevd (4335) [ 51.945291][ T4431] loop3: detected capacity change from 0 to 32768 [ 51.969557][ T4431] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor335 (4431) executing program [ 52.071512][ T4341] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by udevd (4341) executing program [ 52.311470][ T4442] loop3: detected capacity change from 0 to 32768 [ 52.317672][ T4435] loop4: detected capacity change from 0 to 32768 [ 52.326267][ T4442] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor335 (4442) [ 52.335584][ T4435] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor335 (4435) executing program [ 52.369866][ T4436] loop1: detected capacity change from 0 to 32768 [ 52.382869][ T4436] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by syz-executor335 (4436) executing program [ 52.446786][ T4313] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by udevd (4313) [ 52.462299][ T4438] loop2: detected capacity change from 0 to 32768 [ 52.498246][ T4438] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor335 (4438) [ 52.508246][ T4341] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by udevd (4341) executing program [ 52.535037][ T4305] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by udevd (4305) executing program [ 52.677073][ T4335] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by udevd (4335) executing program [ 53.083147][ T4449] loop4: detected capacity change from 0 to 32768 [ 53.100075][ T4449] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor335 (4449) executing program [ 53.128512][ T4447] loop3: detected capacity change from 0 to 32768 [ 53.148821][ T4447] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor335 (4447) [ 53.194060][ T4313] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by udevd (4313) [ 53.202772][ T4453] loop2: detected capacity change from 0 to 32768 executing program [ 53.241165][ T4453] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor335 (4453) [ 53.259870][ T4341] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by udevd (4341) executing program [ 53.347444][ T4452] loop1: detected capacity change from 0 to 32768 [ 53.353326][ T4452] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by syz-executor335 (4452) [ 53.375962][ T4335] I/O error, dev loop1, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 53.383860][ T4305] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by udevd (4305) executing program [ 53.819243][ T4458] loop4: detected capacity change from 0 to 32768 executing program [ 53.836144][ T4458] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor335 (4458) executing program [ 53.955139][ T4341] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by udevd (4341) [ 53.955740][ T4460] loop3: detected capacity change from 0 to 32768 [ 53.994250][ T4460] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor335 (4460) [ 54.026249][ T4462] loop2: detected capacity change from 0 to 32768 executing program [ 54.043989][ T4462] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor335 (4462) executing program [ 54.162091][ T4305] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by udevd (4305) [ 54.209899][ T4335] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by udevd (4335) [ 54.344683][ T4464] loop1: detected capacity change from 0 to 32768 [ 54.347580][ T4464] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by syz-executor335 (4464) executing program [ 54.479964][ T4341] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by udevd (4341) [ 54.603308][ T4474] loop2: detected capacity change from 0 to 32768 [ 54.623920][ T4474] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor335 (4474) executing program [ 54.674144][ T4469] loop4: detected capacity change from 0 to 32768 [ 54.713744][ T4469] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor335 (4469) [ 54.714089][ T4472] loop3: detected capacity change from 0 to 32768 [ 54.725507][ T4472] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor335 (4472) executing program [ 54.782017][ T4341] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by udevd (4341) executing program [ 54.870976][ T4305] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by udevd (4305) executing program [ 54.987699][ T4335] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by udevd (4335) [ 55.128528][ T4476] loop1: detected capacity change from 0 to 32768 [ 55.141787][ T4476] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by syz-executor335 (4476) executing program [ 55.226731][ T4341] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by udevd (4341) [ 55.325228][ T4478] loop2: detected capacity change from 0 to 32768 [ 55.342195][ T4478] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by syz-executor335 (4478) executing program