Warning: Permanently added '10.128.0.34' (ED25519) to the list of known hosts. executing program [ 39.819225][ T4294] loop0: detected capacity change from 0 to 32768 [ 39.822453][ T4294] ======================================================= [ 39.822453][ T4294] WARNING: The mand mount option has been deprecated and [ 39.822453][ T4294] and is ignored by this kernel. Remove the mand [ 39.822453][ T4294] option from the mount to silence this warning. [ 39.822453][ T4294] ======================================================= [ 39.846640][ T4294] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 40.195955][ T4293] ocfs2: Unmounting device (7,0) on (node local) executing program [ 40.398061][ T4298] loop0: detected capacity change from 0 to 32768 [ 40.418016][ T4298] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 40.763905][ T4293] ocfs2: Unmounting device (7,0) on (node local) executing program [ 40.974087][ T4301] loop0: detected capacity change from 0 to 32768 [ 40.993373][ T4301] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 41.343082][ T4293] ocfs2: Unmounting device (7,0) on (node local) executing program [ 41.545490][ T4304] loop0: detected capacity change from 0 to 32768 [ 41.564030][ T4304] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 41.910072][ T4293] ocfs2: Unmounting device (7,0) on (node local) executing program [ 42.109622][ T4307] loop0: detected capacity change from 0 to 32768 [ 42.128197][ T4307] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 42.480468][ T4293] ocfs2: Unmounting device (7,0) on (node local) executing program [ 42.711532][ T4311] loop0: detected capacity change from 0 to 32768 [ 42.728681][ T4311] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 43.121517][ T4293] ocfs2: Unmounting device (7,0) on (node local) executing program [ 43.320158][ T4314] loop0: detected capacity change from 0 to 32768 [ 43.338095][ T4314] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 43.693499][ T4293] ocfs2: Unmounting device (7,0) on (node local) executing program [ 43.903121][ T4317] loop0: detected capacity change from 0 to 32768 [ 43.911831][ T4317] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 44.271021][ T4293] ocfs2: Unmounting device (7,0) on (node local) executing program [ 44.479070][ T4320] loop0: detected capacity change from 0 to 32768 [ 44.494796][ T4320] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 44.844996][ T4293] ocfs2: Unmounting device (7,0) on (node local) executing program [ 45.048507][ T4323] loop0: detected capacity change from 0 to 32768 [ 45.064904][ T4323] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 45.420090][ T4293] ocfs2: Unmounting device (7,0) on (node local) executing program [ 45.624059][ T4327] loop0: detected capacity change from 0 to 32768 [ 45.639953][ T4327] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 45.986089][ T4293] ocfs2: Unmounting device (7,0) on (node local) executing program [ 46.187627][ T4331] loop0: detected capacity change from 0 to 32768 [ 46.206049][ T4331] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 46.554409][ T4293] ocfs2: Unmounting device (7,0) on (node local) executing program [ 46.757595][ T4335] loop0: detected capacity change from 0 to 32768 [ 46.772380][ T4335] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 47.130146][ T4293] ocfs2: Unmounting device (7,0) on (node local) executing program [ 47.332493][ T4339] loop0: detected capacity change from 0 to 32768 [ 47.348726][ T4339] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 47.704622][ T4293] ocfs2: Unmounting device (7,0) on (node local) executing program [ 47.910931][ T4343] loop0: detected capacity change from 0 to 32768 [ 47.926091][ T4343] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 48.282509][ T4293] ocfs2: Unmounting device (7,0) on (node local) executing program [ 48.485847][ T4347] loop0: detected capacity change from 0 to 32768 [ 48.501439][ T4347] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 48.506477][ T4347] [ 48.507215][ T4347] ====================================================== [ 48.509374][ T4347] WARNING: possible circular locking dependency detected [ 48.511394][ T4347] 6.1.138-syzkaller #0 Not tainted [ 48.512814][ T4347] ------------------------------------------------------ [ 48.514794][ T4347] syz-executor855/4347 is trying to acquire lock: [ 48.516577][ T4347] ffff0000cfdbd488 (&osb->system_file_mutex){+.+.}-{3:3}, at: ocfs2_get_system_file_inode+0x15c/0x644 [ 48.519608][ T4347] [ 48.519608][ T4347] but task is already holding lock: [ 48.521629][ T4347] ffff0000e2293f60 (&ocfs2_file_ip_alloc_sem_key){++++}-{3:3}, at: ocfs2_write_begin+0x190/0x30c [ 48.524517][ T4347] [ 48.524517][ T4347] which lock already depends on the new lock. [ 48.524517][ T4347] [ 48.527319][ T4347] [ 48.527319][ T4347] the existing dependency chain (in reverse order) is: [ 48.529781][ T4347] [ 48.529781][ T4347] -> #1 (&ocfs2_file_ip_alloc_sem_key){++++}-{3:3}: [ 48.532157][ T4347] down_read+0x64/0x304 [ 48.533436][ T4347] ocfs2_read_virt_blocks+0x244/0x8e0 [ 48.535077][ T4347] ocfs2_find_entry+0x318/0x1c5c [ 48.536608][ T4347] ocfs2_find_files_on_disk+0x128/0x410 [ 48.538287][ T4347] ocfs2_lookup_ino_from_name+0x60/0x114 [ 48.540014][ T4347] ocfs2_get_system_file_inode+0x2b8/0x644 [ 48.541796][ T4347] ocfs2_init_global_system_inodes+0x2a8/0x594 [ 48.543652][ T4347] ocfs2_fill_super+0x210c/0x3e98 [ 48.545197][ T4347] mount_bdev+0x264/0x358 [ 48.546496][ T4347] ocfs2_mount+0x44/0x58 [ 48.547824][ T4347] legacy_get_tree+0xd4/0x16c [ 48.549208][ T4347] vfs_get_tree+0x90/0x274 [ 48.550662][ T4347] do_new_mount+0x228/0x810 [ 48.552031][ T4347] path_mount+0x5b4/0xe78 [ 48.553361][ T4347] __arm64_sys_mount+0x49c/0x584 [ 48.554880][ T4347] invoke_syscall+0x98/0x2bc [ 48.556202][ T4347] el0_svc_common+0x138/0x258 [ 48.557604][ T4347] do_el0_svc+0x58/0x13c [ 48.558890][ T4347] el0_svc+0x58/0x138 [ 48.560128][ T4347] el0t_64_sync_handler+0x84/0xf0 [ 48.561648][ T4347] el0t_64_sync+0x18c/0x190 [ 48.563090][ T4347] [ 48.563090][ T4347] -> #0 (&osb->system_file_mutex){+.+.}-{3:3}: [ 48.565453][ T4347] __lock_acquire+0x293c/0x6544 [ 48.566881][ T4347] lock_acquire+0x20c/0x644 [ 48.568226][ T4347] __mutex_lock_common+0x190/0x1f38 [ 48.569850][ T4347] mutex_lock_nested+0x38/0x44 [ 48.571267][ T4347] ocfs2_get_system_file_inode+0x15c/0x644 [ 48.572997][ T4347] ocfs2_reserve_local_alloc_bits+0xe0/0x278c [ 48.574793][ T4347] ocfs2_reserve_clusters_with_limit+0x198/0x9e0 [ 48.576640][ T4347] ocfs2_lock_allocators+0x27c/0x518 [ 48.578248][ T4347] ocfs2_write_begin_nolock+0x1d08/0x3ab4 [ 48.579951][ T4347] ocfs2_write_begin+0x1b4/0x30c [ 48.581425][ T4347] generic_perform_write+0x230/0x4b0 [ 48.583087][ T4347] __generic_file_write_iter+0x168/0x37c [ 48.584704][ T4347] ocfs2_file_write_iter+0x1300/0x1bf4 [ 48.586294][ T4347] vfs_write+0x5ac/0x7c4 [ 48.587599][ T4347] ksys_write+0x120/0x210 [ 48.588911][ T4347] __arm64_sys_write+0x7c/0x90 [ 48.590389][ T4347] invoke_syscall+0x98/0x2bc [ 48.591791][ T4347] el0_svc_common+0x138/0x258 [ 48.593230][ T4347] do_el0_svc+0x58/0x13c [ 48.594582][ T4347] el0_svc+0x58/0x138 [ 48.595787][ T4347] el0t_64_sync_handler+0x84/0xf0 [ 48.597284][ T4347] el0t_64_sync+0x18c/0x190 [ 48.598665][ T4347] [ 48.598665][ T4347] other info that might help us debug this: [ 48.598665][ T4347] [ 48.601480][ T4347] Possible unsafe locking scenario: [ 48.601480][ T4347] [ 48.603449][ T4347] CPU0 CPU1 [ 48.604948][ T4347] ---- ---- [ 48.606464][ T4347] lock(&ocfs2_file_ip_alloc_sem_key); [ 48.607990][ T4347] lock(&osb->system_file_mutex); [ 48.610182][ T4347] lock(&ocfs2_file_ip_alloc_sem_key); [ 48.612508][ T4347] lock(&osb->system_file_mutex); [ 48.613967][ T4347] [ 48.613967][ T4347] *** DEADLOCK *** [ 48.613967][ T4347] [ 48.616396][ T4347] 3 locks held by syz-executor855/4347: [ 48.617943][ T4347] #0: ffff0000cf034460 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x23c/0x7c4 [ 48.620525][ T4347] #1: ffff0000e22942c8 (&sb->s_type->i_mutex_key#17){+.+.}-{3:3}, at: ocfs2_file_write_iter+0x3a4/0x1bf4 [ 48.623656][ T4347] #2: ffff0000e2293f60 (&ocfs2_file_ip_alloc_sem_key){++++}-{3:3}, at: ocfs2_write_begin+0x190/0x30c [ 48.626731][ T4347] [ 48.626731][ T4347] stack backtrace: [ 48.628306][ T4347] CPU: 0 PID: 4347 Comm: syz-executor855 Not tainted 6.1.138-syzkaller #0 [ 48.630911][ T4347] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 48.633761][ T4347] Call trace: [ 48.634670][ T4347] dump_backtrace+0x1c8/0x1f4 [ 48.636046][ T4347] show_stack+0x2c/0x3c [ 48.637211][ T4347] __dump_stack+0x30/0x40 [ 48.638427][ T4347] dump_stack_lvl+0xf8/0x160 [ 48.639812][ T4347] dump_stack+0x1c/0x5c [ 48.641051][ T4347] print_circular_bug+0x148/0x1b0 [ 48.642542][ T4347] check_noncircular+0x240/0x2d4 [ 48.643913][ T4347] __lock_acquire+0x293c/0x6544 [ 48.645385][ T4347] lock_acquire+0x20c/0x644 [ 48.646612][ T4347] __mutex_lock_common+0x190/0x1f38 [ 48.648079][ T4347] mutex_lock_nested+0x38/0x44 [ 48.649416][ T4347] ocfs2_get_system_file_inode+0x15c/0x644 [ 48.651051][ T4347] ocfs2_reserve_local_alloc_bits+0xe0/0x278c [ 48.652900][ T4347] ocfs2_reserve_clusters_with_limit+0x198/0x9e0 [ 48.654636][ T4347] ocfs2_lock_allocators+0x27c/0x518 [ 48.656164][ T4347] ocfs2_write_begin_nolock+0x1d08/0x3ab4 [ 48.657846][ T4347] ocfs2_write_begin+0x1b4/0x30c [ 48.659409][ T4347] generic_perform_write+0x230/0x4b0 [ 48.660958][ T4347] __generic_file_write_iter+0x168/0x37c [ 48.662446][ T4347] ocfs2_file_write_iter+0x1300/0x1bf4 [ 48.663968][ T4347] vfs_write+0x5ac/0x7c4 [ 48.665149][ T4347] ksys_write+0x120/0x210 [ 48.666353][ T4347] __arm64_sys_write+0x7c/0x90 [ 48.667700][ T4347] invoke_syscall+0x98/0x2bc [ 48.668907][ T4347] el0_svc_common+0x138/0x258 [ 48.670169][ T4347] do_el0_svc+0x58/0x13c [ 48.671385][ T4347] el0_svc+0x58/0x138 [ 48.672519][ T4347] el0t_64_sync_handler+0x84/0xf0 [ 48.673910][ T4347] el0t_64_sync+0x18c/0x190 [ 48.885744][ T4293] ocfs2: Unmounting device (7,0) on (node local) executing program [ 49.014819][ T4350] loop0: detected capacity change from 0 to 32768 [ 49.025544][ T4350] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 49.233113][ T4293] ocfs2: Unmounting device (7,0) on (node local) executing program [ 49.362816][ T4353] loop0: detected capacity change from 0 to 32768 [ 49.378907][ T4353] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 49.594400][ T4293] ocfs2: Unmounting device (7,0) on (node local) executing program [ 49.725711][ T4356] loop0: detected capacity change from 0 to 32768 [ 49.736454][ T4356] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 49.954529][ T4293] ocfs2: Unmounting device (7,0) on (node local) executing program [ 50.089311][ T4359] loop0: detected capacity change from 0 to 32768 [ 50.105385][ T4359] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 50.314300][ T4293] ocfs2: Unmounting device (7,0) on (node local) executing program [ 50.443339][ T4362] loop0: detected capacity change from 0 to 32768 [ 50.454365][ T4362] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 50.671909][ T4293] ocfs2: Unmounting device (7,0) on (node local) executing program [ 50.801955][ T4365] loop0: detected capacity change from 0 to 32768 [ 50.812717][ T4365] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 51.025696][ T4293] ocfs2: Unmounting device (7,0) on (node local) executing program [ 51.151865][ T4368] loop0: detected capacity change from 0 to 32768 [ 51.163228][ T4368] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 51.382777][ T4293] ocfs2: Unmounting device (7,0) on (node local) executing program [ 51.513123][ T4371] loop0: detected capacity change from 0 to 32768 [ 51.524167][ T4371] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 51.742408][ T4293] ocfs2: Unmounting device (7,0) on (node local) executing program [ 51.871995][ T4374] loop0: detected capacity change from 0 to 32768 [ 51.884838][ T4374] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 52.102430][ T4293] ocfs2: Unmounting device (7,0) on (node local) executing program [ 52.228203][ T4377] loop0: detected capacity change from 0 to 32768 [ 52.238178][ T4377] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 52.456024][ T4293] ocfs2: Unmounting device (7,0) on (node local) executing program [ 52.583735][ T4380] loop0: detected capacity change from 0 to 32768 [ 52.592662][ T4380] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 52.811351][ T4293] ocfs2: Unmounting device (7,0) on (node local) executing program [ 52.943547][ T4383] loop0: detected capacity change from 0 to 32768 [ 52.950255][ T4383] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 53.160659][ T4293] ocfs2: Unmounting device (7,0) on (node local) executing program [ 53.295636][ T4386] loop0: detected capacity change from 0 to 32768 [ 53.305554][ T4386] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 53.514052][ T4293] ocfs2: Unmounting device (7,0) on (node local) executing program [ 53.648913][ T4389] loop0: detected capacity change from 0 to 32768 [ 53.666970][ T4389] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 53.876354][ T4293] ocfs2: Unmounting device (7,0) on (node local) executing program [ 54.008654][ T4392] loop0: detected capacity change from 0 to 32768 [ 54.020083][ T4392] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 54.232952][ T4293] ocfs2: Unmounting device (7,0) on (node local) executing program [ 54.366825][ T4395] loop0: detected capacity change from 0 to 32768 [ 54.382545][ T4395] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 54.594164][ T4293] ocfs2: Unmounting device (7,0) on (node local) executing program [ 54.722648][ T4398] loop0: detected capacity change from 0 to 32768 [ 54.731680][ T4398] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 54.944007][ T4293] ocfs2: Unmounting device (7,0) on (node local) executing program [ 55.073220][ T4401] loop0: detected capacity change from 0 to 32768 [ 55.086052][ T4401] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 55.292982][ T4293] ocfs2: Unmounting device (7,0) on (node local) executing program [ 55.423889][ T4404] loop0: detected capacity change from 0 to 32768 [ 55.430449][ T4404] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 55.643835][ T4293] ocfs2: Unmounting device (7,0) on (node local) executing program [ 55.774212][ T4407] loop0: detected capacity change from 0 to 32768 [ 55.786751][ T4407] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 56.001457][ T4293] ocfs2: Unmounting device (7,0) on (node local) executing program [ 56.132977][ T4410] loop0: detected capacity change from 0 to 32768 [ 56.144560][ T4410] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 56.362074][ T4293] ocfs2: Unmounting device (7,0) on (node local) executing program [ 56.498080][ T4413] loop0: detected capacity change from 0 to 32768 [ 56.516234][ T4413] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 56.727242][ T4293] ocfs2: Unmounting device (7,0) on (node local) executing program [ 56.863230][ T4416] loop0: detected capacity change from 0 to 32768 [ 56.875140][ T4416] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 57.092641][ T4293] ocfs2: Unmounting device (7,0) on (node local) executing program [ 57.219362][ T4419] loop0: detected capacity change from 0 to 32768 [ 57.231137][ T4419] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 57.446025][ T4293] ocfs2: Unmounting device (7,0) on (node local) executing program [ 57.571350][ T4422] loop0: detected capacity change from 0 to 32768 [ 57.582488][ T4422] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 57.798990][ T4293] ocfs2: Unmounting device (7,0) on (node local) executing program [ 57.923507][ T4425] loop0: detected capacity change from 0 to 32768 [ 57.934907][ T4425] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 58.154095][ T4293] ocfs2: Unmounting device (7,0) on (node local) executing program [ 58.292411][ T4428] loop0: detected capacity change from 0 to 32768 [ 58.303058][ T4428] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode.