Warning: Permanently added '10.128.1.23' (ED25519) to the list of known hosts. executing program executing program executing program executing program executing program [ 63.723958][ T4170] loop2: detected capacity change from 0 to 32768 [ 63.798196][ T4170] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop2 scanned by syz-executor230 (4170) [ 63.868579][ T4170] BTRFS info (device loop2): using crc32c (crc32c-intel) checksum algorithm [ 63.898272][ T4170] BTRFS info (device loop2): setting nodatacow, compression disabled [ 63.906590][ T4170] BTRFS info (device loop2): max_inline at 0 [ 63.923111][ T4170] BTRFS info (device loop2): enabling disk space caching [ 63.930452][ T4168] loop1: detected capacity change from 0 to 32768 [ 63.945093][ T4169] loop0: detected capacity change from 0 to 32768 [ 63.945224][ T4172] loop4: detected capacity change from 0 to 32768 [ 63.954964][ T4171] loop3: detected capacity change from 0 to 32768 [ 63.958308][ T4170] BTRFS info (device loop2): turning off barriers [ 63.982794][ T4170] BTRFS info (device loop2): turning on flush-on-commit [ 63.990155][ T4170] BTRFS info (device loop2): doing ref verification [ 63.997016][ T4170] BTRFS info (device loop2): force clearing of disk cache [ 64.004273][ T4170] BTRFS info (device loop2): enabling ssd optimizations [ 64.010610][ T4169] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor230 (4169) [ 64.022273][ T4170] BTRFS info (device loop2): max_inline at 4096 [ 64.033605][ T4170] BTRFS info (device loop2): disk space caching is enabled [ 64.041613][ T4170] BTRFS info (device loop2): has skinny extents [ 64.094544][ T4171] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor230 (4171) [ 64.126350][ T4170] BTRFS info (device loop2): clearing free space tree [ 64.141112][ T4170] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) [ 64.151321][ T4170] BTRFS info (device loop2): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 64.168290][ T4168] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by syz-executor230 (4168) [ 64.180845][ T4172] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor230 (4172) [ 64.263864][ T4173] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by udevd (4173) [ 64.288803][ T4179] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by udevd (4179) [ 64.328343][ T4174] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by udevd (4174) [ 64.378307][ T4195] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by udevd (4195) [ 64.984452][ T4168] loop1: detected capacity change from 0 to 32768 [ 65.059038][ T4169] loop0: detected capacity change from 0 to 32768 [ 65.119341][ T4168] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop1 scanned by syz-executor230 (4168) [ 65.131161][ T4171] loop3: detected capacity change from 0 to 32768 [ 65.152498][ T4168] BTRFS info (device loop1): using sha256 (sha256-avx2) checksum algorithm [ 65.160368][ T4172] loop4: detected capacity change from 0 to 32768 [ 65.168311][ T4168] BTRFS info (device loop1): setting nodatacow, compression disabled [ 65.177092][ T4168] BTRFS info (device loop1): force clearing of disk cache [ 65.183881][ T4169] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor230 (4169) [ 65.184508][ T4168] BTRFS info (device loop1): setting datacow [ 65.201247][ T4168] BTRFS info (device loop1): doing ref verification [ 65.207873][ T4168] BTRFS info (device loop1): disabling free space tree [ 65.215172][ T4168] BTRFS info (device loop1): trying to use backup root at mount time [ 65.224963][ T4168] BTRFS info (device loop1): setting incompat feature flag for COMPRESS_ZSTD (0x10) [ 65.234787][ T4168] BTRFS info (device loop1): use zstd compression, level 3 [ 65.242122][ T4168] BTRFS info (device loop1): force zstd compression, level 3 [ 65.256497][ T4168] BTRFS info (device loop1): has skinny extents [ 65.262921][ T4171] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor230 (4171) executing program [ 65.325867][ T4172] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor230 (4172) executing program [ 65.421925][ T4197] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by udevd (4197) [ 65.534572][ T4168] BTRFS info (device loop1): clearing free space tree [ 65.551885][ T4168] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1) executing program [ 65.648103][ T4168] BTRFS info (device loop1): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2) [ 65.759484][ T4168] [ 65.761849][ T4168] ====================================================== [ 65.768893][ T4168] WARNING: possible circular locking dependency detected [ 65.775914][ T4168] 5.15.173-syzkaller #0 Not tainted [ 65.781116][ T4168] ------------------------------------------------------ [ 65.788129][ T4168] syz-executor230/4168 is trying to acquire lock: [ 65.794673][ T4168] ffff888074a5a380 (&type->i_mutex_dir_key#6){++++}-{3:3}, at: lookup_slow+0x45/0x70 [ 65.804296][ T4168] [ 65.804296][ T4168] but task is already holding lock: [ 65.811671][ T4168] ffff8880232d30e0 (&fs_devs->device_list_mutex){+.+.}-{3:3}, at: btrfs_free_stale_devices+0x14b/0xb00 [ 65.822740][ T4168] [ 65.822740][ T4168] which lock already depends on the new lock. [ 65.822740][ T4168] [ 65.833152][ T4168] [ 65.833152][ T4168] the existing dependency chain (in reverse order) is: [ 65.842172][ T4168] [ 65.842172][ T4168] -> #3 (&fs_devs->device_list_mutex){+.+.}-{3:3}: [ 65.850873][ T4168] lock_acquire+0x1db/0x4f0 [ 65.855921][ T4168] __mutex_lock_common+0x1da/0x25a0 [ 65.861659][ T4168] mutex_lock_nested+0x17/0x20 [ 65.866948][ T4168] btrfs_run_dev_stats+0xeb/0xfd0 [ 65.872511][ T4168] commit_cowonly_roots+0x1cb/0x9d0 [ 65.878243][ T4168] btrfs_commit_transaction+0x13af/0x3800 [ 65.884496][ T4168] btrfs_clear_free_space_tree+0x755/0xbd0 [ 65.890836][ T4168] btrfs_start_pre_rw_mount+0x2b0/0x680 [ 65.896913][ T4168] open_ctree+0x2dcf/0x3500 [ 65.901943][ T4168] btrfs_fill_super+0x1c7/0x2d0 [ 65.907321][ T4168] btrfs_mount_root+0x803/0x930 [ 65.912694][ T4168] legacy_get_tree+0xeb/0x180 [ 65.917896][ T4168] vfs_get_tree+0x88/0x270 [ 65.922846][ T4168] vfs_kern_mount+0xb8/0x150 [ 65.927968][ T4168] btrfs_mount+0x395/0xb40 [ 65.932946][ T4168] legacy_get_tree+0xeb/0x180 [ 65.938153][ T4168] vfs_get_tree+0x88/0x270 [ 65.943098][ T4168] do_new_mount+0x2ba/0xb40 [ 65.948129][ T4168] __se_sys_mount+0x2d5/0x3c0 [ 65.953331][ T4168] do_syscall_64+0x3b/0xb0 [ 65.958274][ T4168] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 65.964695][ T4168] [ 65.964695][ T4168] -> #2 (&fs_info->tree_log_mutex){+.+.}-{3:3}: [ 65.973146][ T4168] reacquire_held_locks+0x3a2/0x660 [ 65.978881][ T4168] lock_release+0x369/0x9a0 [ 65.983906][ T4168] __mutex_unlock_slowpath+0xde/0x750 [ 65.989807][ T4168] btrfs_commit_transaction+0x1e34/0x3800 [ 65.996058][ T4168] btrfs_clear_free_space_tree+0x755/0xbd0 [ 66.002931][ T4168] btrfs_start_pre_rw_mount+0x2b0/0x680 [ 66.009001][ T4168] open_ctree+0x2dcf/0x3500 [ 66.014039][ T4168] btrfs_fill_super+0x1c7/0x2d0 [ 66.019418][ T4168] btrfs_mount_root+0x803/0x930 [ 66.024806][ T4168] legacy_get_tree+0xeb/0x180 [ 66.030194][ T4168] vfs_get_tree+0x88/0x270 [ 66.035135][ T4168] vfs_kern_mount+0xb8/0x150 [ 66.040253][ T4168] btrfs_mount+0x395/0xb40 [ 66.045199][ T4168] legacy_get_tree+0xeb/0x180 [ 66.050401][ T4168] vfs_get_tree+0x88/0x270 [ 66.055363][ T4168] do_new_mount+0x2ba/0xb40 [ 66.060393][ T4168] __se_sys_mount+0x2d5/0x3c0 [ 66.065599][ T4168] do_syscall_64+0x3b/0xb0 [ 66.070545][ T4168] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 66.076974][ T4168] [ 66.076974][ T4168] -> #1 (sb_internal#2){.+.+}-{0:0}: [ 66.084473][ T4168] lock_acquire+0x1db/0x4f0 [ 66.089508][ T4168] start_transaction+0x5a8/0x11a0 [ 66.095084][ T4168] btrfs_dirty_inode+0xcc/0x1c0 [ 66.100470][ T4168] btrfs_setattr+0x2d0/0xf70 [ 66.105596][ T4168] notify_change+0xc6d/0xf50 [ 66.110715][ T4168] chown_common+0x592/0x890 [ 66.115745][ T4168] do_fchownat+0x169/0x240 [ 66.120692][ T4168] __x64_sys_lchown+0x81/0x90 [ 66.125913][ T4168] do_syscall_64+0x3b/0xb0 [ 66.130856][ T4168] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 66.137279][ T4168] [ 66.137279][ T4168] -> #0 (&type->i_mutex_dir_key#6){++++}-{3:3}: [ 66.145723][ T4168] validate_chain+0x1649/0x5930 [ 66.151106][ T4168] __lock_acquire+0x1295/0x1ff0 [ 66.156482][ T4168] lock_acquire+0x1db/0x4f0 [ 66.161599][ T4168] down_read+0x45/0x2e0 [ 66.166281][ T4168] lookup_slow+0x45/0x70 [ 66.171053][ T4168] walk_component+0x48c/0x610 [ 66.175569][ T4222] loop0: detected capacity change from 0 to 32768 [ 66.176263][ T4168] path_lookupat+0x16f/0x450 [ 66.187769][ T4168] filename_lookup+0x230/0x5c0 [ 66.193056][ T4168] kern_path+0x37/0x180 [ 66.197737][ T4168] lookup_bdev+0xc1/0x280 [ 66.202594][ T4168] btrfs_free_stale_devices+0x71f/0xb00 [ 66.208669][ T4168] btrfs_forget_devices+0x52/0x80 [ 66.214225][ T4168] btrfs_control_ioctl+0x108/0x210 [ 66.219869][ T4168] __se_sys_ioctl+0xf1/0x160 [ 66.225026][ T4168] do_syscall_64+0x3b/0xb0 [ 66.229976][ T4168] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 66.236411][ T4168] [ 66.236411][ T4168] other info that might help us debug this: [ 66.236411][ T4168] [ 66.246646][ T4168] Chain exists of: [ 66.246646][ T4168] &type->i_mutex_dir_key#6 --> &fs_info->tree_log_mutex --> &fs_devs->device_list_mutex [ 66.246646][ T4168] [ 66.262303][ T4168] Possible unsafe locking scenario: [ 66.262303][ T4168] [ 66.269754][ T4168] CPU0 CPU1 [ 66.275117][ T4168] ---- ---- [ 66.280483][ T4168] lock(&fs_devs->device_list_mutex); [ 66.285950][ T4168] lock(&fs_info->tree_log_mutex); [ 66.293690][ T4168] lock(&fs_devs->device_list_mutex); [ 66.301675][ T4168] lock(&type->i_mutex_dir_key#6); [ 66.306888][ T4168] [ 66.306888][ T4168] *** DEADLOCK *** [ 66.306888][ T4168] [ 66.315034][ T4168] 2 locks held by syz-executor230/4168: [ 66.319288][ T4211] loop4: detected capacity change from 0 to 32768 [ 66.320574][ T4168] #0: ffffffff8d0114a8 (uuid_mutex){+.+.}-{3:3}, at: btrfs_forget_devices+0x1a/0x80 [ 66.336476][ T4168] #1: ffff8880232d30e0 (&fs_devs->device_list_mutex){+.+.}-{3:3}, at: btrfs_free_stale_devices+0x14b/0xb00 [ 66.347989][ T4168] [ 66.347989][ T4168] stack backtrace: [ 66.353893][ T4168] CPU: 0 PID: 4168 Comm: syz-executor230 Not tainted 5.15.173-syzkaller #0 [ 66.362492][ T4168] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 66.372561][ T4168] Call Trace: [ 66.375853][ T4168] [ 66.378788][ T4168] dump_stack_lvl+0x1e3/0x2d0 [ 66.383477][ T4168] ? io_uring_drop_tctx_refs+0x1a0/0x1a0 [ 66.389123][ T4168] ? print_circular_bug+0x12b/0x1a0 [ 66.394354][ T4168] check_noncircular+0x2f8/0x3b0 [ 66.399308][ T4168] ? add_chain_block+0x850/0x850 [ 66.404253][ T4168] ? lockdep_lock+0x11f/0x2a0 [ 66.408943][ T4168] ? reacquire_held_locks+0x660/0x660 [ 66.414324][ T4168] ? reacquire_held_locks+0x660/0x660 [ 66.419704][ T4168] ? _find_first_zero_bit+0xcf/0xf0 [ 66.424925][ T4168] validate_chain+0x1649/0x5930 [ 66.429806][ T4168] ? reacquire_held_locks+0x660/0x660 [ 66.435194][ T4168] ? mark_lock+0x98/0x340 [ 66.439539][ T4168] ? __lock_acquire+0x1295/0x1ff0 [ 66.444604][ T4168] ? mark_lock+0x98/0x340 [ 66.448949][ T4168] __lock_acquire+0x1295/0x1ff0 [ 66.453818][ T4168] lock_acquire+0x1db/0x4f0 [ 66.458329][ T4168] ? lookup_slow+0x45/0x70 [ 66.462762][ T4168] ? read_lock_is_recursive+0x10/0x10 [ 66.468147][ T4168] ? try_to_unlazy+0x44e/0x6f0 [ 66.472919][ T4168] ? __might_sleep+0xc0/0xc0 [ 66.477521][ T4168] ? lookup_fast+0x306/0x7b0 [ 66.482120][ T4168] down_read+0x45/0x2e0 [ 66.486288][ T4168] ? lookup_slow+0x45/0x70 [ 66.490720][ T4168] lookup_slow+0x45/0x70 [ 66.494977][ T4168] walk_component+0x48c/0x610 [ 66.499663][ T4168] ? nd_alloc_stack+0xf0/0xf0 [ 66.504349][ T4168] ? handle_lookup_down+0x130/0x130 [ 66.509564][ T4168] path_lookupat+0x16f/0x450 [ 66.514188][ T4168] filename_lookup+0x230/0x5c0 [ 66.518970][ T4168] ? hashlen_string+0x110/0x110 [ 66.523844][ T4168] ? rcu_is_watching+0x11/0xa0 [ 66.528623][ T4168] ? getname_kernel+0x55/0x2d0 [ 66.533444][ T4168] ? kmem_cache_alloc+0x128/0x280 [ 66.538487][ T4168] ? getname_kernel+0x13c/0x2d0 [ 66.543351][ T4168] ? memcpy+0x3c/0x60 [ 66.547346][ T4168] kern_path+0x37/0x180 [ 66.551514][ T4168] lookup_bdev+0xc1/0x280 [ 66.555939][ T4168] ? slab_free_freelist_hook+0xdd/0x160 [ 66.561518][ T4168] ? blkdev_get_by_path+0x2d0/0x2d0 [ 66.566708][ T4168] ? kfree+0xf1/0x270 [ 66.570682][ T4168] btrfs_free_stale_devices+0x71f/0xb00 [ 66.576250][ T4168] ? btrfs_forget_devices+0x80/0x80 [ 66.581477][ T4168] ? copy_user_enhanced_fast_string+0xe/0x40 [ 66.587483][ T4168] btrfs_forget_devices+0x52/0x80 [ 66.592504][ T4168] btrfs_control_ioctl+0x108/0x210 [ 66.597607][ T4168] ? trace_raw_output_btrfs__space_info_update+0x130/0x130 [ 66.604795][ T4168] __se_sys_ioctl+0xf1/0x160 [ 66.609401][ T4168] do_syscall_64+0x3b/0xb0 [ 66.613811][ T4168] ? clear_bhb_loop+0x15/0x70 [ 66.618507][ T4168] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 66.624395][ T4168] RIP: 0033:0x7fa531289409 [ 66.628810][ T4168] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 17 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 66.648402][ T4168] RSP: 002b:00007ffdfcd2d838 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 executing program executing program executing program [ 66.656810][ T4168] RAX: ffffffffffffffda RBX: 61635f7261656c63 RCX: 00007fa531289409 [ 66.664772][ T4168] RDX: 0000000020000100 RSI: 0000000050009405 RDI: 0000000000000004 [ 66.672735][ T4168] RBP: 697265765f666572 R08: 000055558dd8a378 R09: 000055558dd8a378 [ 66.680698][ T4168] R10: 000000000000559d R11: 0000000000000246 R12: 00007fa5312d2095 [ 66.688657][ T4168] R13: 6f63617461646f6e R14: 696c6e695f78616d R15: 6569727261626f6e [ 66.696806][ T4168] [ 66.762486][ T4222] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor230 (4222) [ 66.798227][ T4211] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor230 (4211) [ 66.838173][ T4195] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by udevd (4195) [ 66.858146][ T4179] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by udevd (4179) [ 67.405558][ T4224] loop3: detected capacity change from 0 to 32768 [ 67.488686][ T4224] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor230 (4224) [ 67.500617][ T4222] loop0: detected capacity change from 0 to 32768 [ 67.528166][ T4174] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by udevd (4174) [ 67.561363][ T4211] loop4: detected capacity change from 0 to 32768 [ 67.608445][ T4222] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor230 (4222) executing program [ 67.690703][ T4211] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor230 (4211) [ 67.722840][ T4173] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by udevd (4173) [ 67.758172][ T4197] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by udevd (4197) executing program [ 68.201134][ T4224] loop3: detected capacity change from 0 to 32768 executing program [ 68.274607][ T4224] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor230 (4224) [ 68.314513][ T4179] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by udevd (4179) executing program [ 68.399513][ T4231] loop0: detected capacity change from 0 to 32768 [ 68.483758][ T4232] loop4: detected capacity change from 0 to 32768 [ 68.516894][ T4231] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor230 (4231) executing program [ 68.539790][ T4195] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by udevd (4195) [ 68.603540][ T4232] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor230 (4232) [ 68.631711][ T4174] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by udevd (4174) [ 69.000561][ T4235] loop3: detected capacity change from 0 to 32768 [ 69.044794][ T4235] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor230 (4235) [ 69.078266][ T4195] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by udevd (4195) [ 69.162293][ T4231] loop0: detected capacity change from 0 to 32768 [ 69.273314][ T4231] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor230 (4231) [ 69.304771][ T4197] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by udevd (4197) executing program [ 69.342840][ T4232] loop4: detected capacity change from 0 to 32768 [ 69.434742][ T4173] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by udevd (4173) [ 69.482295][ T4232] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor230 (4232) executing program [ 69.773360][ T4235] loop3: detected capacity change from 0 to 32768 [ 69.847002][ T4235] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor230 (4235) [ 69.871576][ T4195] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by udevd (4195) executing program [ 69.956740][ T4240] loop0: detected capacity change from 0 to 32768 executing program [ 70.068624][ T4240] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor230 (4240) [ 70.108421][ T4174] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by udevd (4174) executing program [ 70.416870][ T4241] loop4: detected capacity change from 0 to 32768 [ 70.452568][ T4241] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor230 (4241) [ 70.470039][ T4195] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by udevd (4195) [ 70.595856][ T4243] loop3: detected capacity change from 0 to 32768 [ 70.643403][ T4243] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor230 (4243) [ 70.684767][ T4179] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by udevd (4179) [ 70.755347][ T4240] loop0: detected capacity change from 0 to 32768 executing program [ 70.858362][ T4240] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor230 (4240) [ 70.893250][ T4195] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by udevd (4195) [ 71.103619][ T4241] loop4: detected capacity change from 0 to 32768 [ 71.216518][ T4241] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor230 (4241) [ 71.250758][ T4179] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by udevd (4179) executing program [ 71.367703][ T4243] loop3: detected capacity change from 0 to 32768 [ 71.421245][ T4243] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor230 (4243) [ 71.448527][ T4195] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by udevd (4195) executing program [ 71.622865][ T4248] loop0: detected capacity change from 0 to 32768 [ 71.701751][ T4248] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor230 (4248) [ 71.732929][ T4174] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by udevd (4174) executing program [ 71.941975][ T4250] loop4: detected capacity change from 0 to 32768 [ 72.068554][ T4250] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor230 (4250) [ 72.098213][ T4174] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by udevd (4174) executing program [ 72.218693][ T4251] loop3: detected capacity change from 0 to 32768 [ 72.269050][ T4179] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by udevd (4179) [ 72.288237][ T4251] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor230 (4251) [ 72.385909][ T4248] loop0: detected capacity change from 0 to 32768 executing program [ 72.501611][ T4248] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor230 (4248) [ 72.523386][ T4195] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by udevd (4195) [ 72.700894][ T4250] loop4: detected capacity change from 0 to 32768 [ 72.831670][ T4250] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor230 (4250) executing program [ 72.875234][ T4197] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by udevd (4197) [ 73.183780][ T4256] loop0: detected capacity change from 0 to 32768 [ 73.219838][ T4251] loop3: detected capacity change from 0 to 32768 [ 73.268369][ T4195] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by udevd (4195) [ 73.301793][ T4256] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor230 (4256) [ 73.369217][ T4251] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor230 (4251) executing program [ 73.534837][ T4259] loop4: detected capacity change from 0 to 32768 [ 73.598729][ T4259] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor230 (4259) executing program [ 73.640408][ T4195] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by udevd (4195) executing program [ 74.160337][ T4259] loop4: detected capacity change from 0 to 32768 [ 74.198752][ T4259] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor230 (4259) [ 74.219449][ T4256] loop0: detected capacity change from 0 to 32768 [ 74.227605][ T4179] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by udevd (4179) executing program [ 74.261861][ T4256] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor230 (4256) executing program [ 74.304265][ T4174] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by udevd (4174) [ 74.327983][ T4264] loop3: detected capacity change from 0 to 32768 [ 74.388171][ T4264] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor230 (4264) [ 74.428179][ T4195] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by udevd (4195) [ 74.935429][ T4266] loop4: detected capacity change from 0 to 32768 [ 75.020902][ T4267] loop0: detected capacity change from 0 to 32768 [ 75.031209][ T4266] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor230 (4266) [ 75.064315][ T4179] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by udevd (4179) [ 75.091846][ T4264] loop3: detected capacity change from 0 to 32768 [ 75.105064][ T4174] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by udevd (4174) [ 75.125448][ T4267] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by syz-executor230 (4267) executing program executing program [ 75.186916][ T4264] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by syz-executor230 (4264) [ 75.218234][ T4174] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by udevd (4174) executing program