Warning: Permanently added '10.128.1.190' (ED25519) to the list of known hosts. executing program [ 37.366466][ T6515] loop0: detected capacity change from 0 to 32768 [ 37.368436][ T6515] ======================================================= [ 37.368436][ T6515] WARNING: The mand mount option has been deprecated and [ 37.368436][ T6515] and is ignored by this kernel. Remove the mand [ 37.368436][ T6515] option from the mount to silence this warning. [ 37.368436][ T6515] ======================================================= [ 37.401273][ T6515] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 37.443662][ T6515] [ 37.444316][ T6515] ====================================================== [ 37.446146][ T6515] WARNING: possible circular locking dependency detected [ 37.448053][ T6515] 6.16.0-rc2-syzkaller-g9aa9b43d689e #0 Not tainted [ 37.449828][ T6515] ------------------------------------------------------ [ 37.451627][ T6515] syz-executor206/6515 is trying to acquire lock: [ 37.453336][ T6515] ffff0000ddca3480 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4){+.+.}-{4:4}, at: __ocfs2_flush_truncate_log+0x2e8/0xf6c [ 37.456891][ T6515] [ 37.456891][ T6515] but task is already holding lock: [ 37.458856][ T6515] ffff0000ddca9800 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#6){+.+.}-{4:4}, at: ocfs2_flush_truncate_log+0x44/0x6c [ 37.462233][ T6515] [ 37.462233][ T6515] which lock already depends on the new lock. [ 37.462233][ T6515] [ 37.464932][ T6515] [ 37.464932][ T6515] the existing dependency chain (in reverse order) is: [ 37.467340][ T6515] [ 37.467340][ T6515] -> #1 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#6){+.+.}-{4:4}: [ 37.470111][ T6515] down_write+0x50/0xc0 [ 37.471331][ T6515] __ocfs2_move_extents_range+0x13ec/0x2abc [ 37.473152][ T6515] ocfs2_move_extents+0x314/0x7f0 [ 37.474658][ T6515] ocfs2_ioctl_move_extents+0x424/0x5f0 [ 37.476260][ T6515] ocfs2_ioctl+0x1c4/0x738 [ 37.477598][ T6515] __arm64_sys_ioctl+0x14c/0x1c4 [ 37.479042][ T6515] invoke_syscall+0x98/0x2b8 [ 37.480406][ T6515] el0_svc_common+0x130/0x23c [ 37.481802][ T6515] do_el0_svc+0x48/0x58 [ 37.483024][ T6515] el0_svc+0x58/0x17c [ 37.484272][ T6515] el0t_64_sync_handler+0x78/0x108 [ 37.485799][ T6515] el0t_64_sync+0x198/0x19c [ 37.487112][ T6515] [ 37.487112][ T6515] -> #0 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4){+.+.}-{4:4}: [ 37.489955][ T6515] __lock_acquire+0x1774/0x30a4 [ 37.491359][ T6515] lock_acquire+0x14c/0x2e0 [ 37.492667][ T6515] down_write+0x50/0xc0 [ 37.493902][ T6515] __ocfs2_flush_truncate_log+0x2e8/0xf6c [ 37.495539][ T6515] ocfs2_flush_truncate_log+0x4c/0x6c [ 37.497138][ T6515] ocfs2_sync_fs+0xf8/0x2a4 [ 37.498529][ T6515] sync_filesystem+0x1a0/0x218 [ 37.500008][ T6515] generic_shutdown_super+0x70/0x2b8 [ 37.501527][ T6515] kill_block_super+0x44/0x90 [ 37.502920][ T6515] deactivate_locked_super+0xc4/0x12c [ 37.504508][ T6515] deactivate_super+0xe0/0x100 [ 37.505917][ T6515] cleanup_mnt+0x31c/0x3ac [ 37.507221][ T6515] __cleanup_mnt+0x20/0x30 [ 37.508567][ T6515] task_work_run+0x1dc/0x260 [ 37.509925][ T6515] do_exit+0x51c/0x19fc [ 37.511144][ T6515] do_group_exit+0x194/0x22c [ 37.512521][ T6515] pid_child_should_wake+0x0/0x1dc [ 37.514015][ T6515] invoke_syscall+0x98/0x2b8 [ 37.515347][ T6515] el0_svc_common+0x130/0x23c [ 37.516762][ T6515] do_el0_svc+0x48/0x58 [ 37.518004][ T6515] el0_svc+0x58/0x17c [ 37.519377][ T6515] el0t_64_sync_handler+0x78/0x108 [ 37.520858][ T6515] el0t_64_sync+0x198/0x19c [ 37.522253][ T6515] [ 37.522253][ T6515] other info that might help us debug this: [ 37.522253][ T6515] [ 37.525033][ T6515] Possible unsafe locking scenario: [ 37.525033][ T6515] [ 37.527045][ T6515] CPU0 CPU1 [ 37.528436][ T6515] ---- ---- [ 37.529913][ T6515] lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#6); [ 37.531826][ T6515] lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4); [ 37.534453][ T6515] lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#6); [ 37.537057][ T6515] lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4); [ 37.538957][ T6515] [ 37.538957][ T6515] *** DEADLOCK *** [ 37.538957][ T6515] [ 37.541181][ T6515] 2 locks held by syz-executor206/6515: [ 37.542631][ T6515] #0: ffff0000caf7e0e0 (&type->s_umount_key#48){+.+.}-{4:4}, at: deactivate_super+0xd8/0x100 [ 37.545393][ T6515] #1: ffff0000ddca9800 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#6){+.+.}-{4:4}, at: ocfs2_flush_truncate_log+0x44/0x6c [ 37.548988][ T6515] [ 37.548988][ T6515] stack backtrace: [ 37.550631][ T6515] CPU: 1 UID: 0 PID: 6515 Comm: syz-executor206 Not tainted 6.16.0-rc2-syzkaller-g9aa9b43d689e #0 PREEMPT [ 37.553743][ T6515] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 37.556415][ T6515] Call trace: [ 37.557295][ T6515] show_stack+0x2c/0x3c (C) [ 37.558504][ T6515] __dump_stack+0x30/0x40 [ 37.559670][ T6515] dump_stack_lvl+0xd8/0x12c [ 37.560896][ T6515] dump_stack+0x1c/0x28 [ 37.562036][ T6515] print_circular_bug+0x324/0x32c [ 37.563416][ T6515] check_noncircular+0x154/0x174 [ 37.564800][ T6515] __lock_acquire+0x1774/0x30a4 [ 37.566094][ T6515] lock_acquire+0x14c/0x2e0 [ 37.567411][ T6515] down_write+0x50/0xc0 [ 37.568476][ T6515] __ocfs2_flush_truncate_log+0x2e8/0xf6c [ 37.569966][ T6515] ocfs2_flush_truncate_log+0x4c/0x6c [ 37.571430][ T6515] ocfs2_sync_fs+0xf8/0x2a4 [ 37.572665][ T6515] sync_filesystem+0x1a0/0x218 [ 37.573926][ T6515] generic_shutdown_super+0x70/0x2b8 [ 37.575382][ T6515] kill_block_super+0x44/0x90 [ 37.576646][ T6515] deactivate_locked_super+0xc4/0x12c [ 37.578058][ T6515] deactivate_super+0xe0/0x100 [ 37.579311][ T6515] cleanup_mnt+0x31c/0x3ac [ 37.580478][ T6515] __cleanup_mnt+0x20/0x30 [ 37.581641][ T6515] task_work_run+0x1dc/0x260 [ 37.582867][ T6515] do_exit+0x51c/0x19fc [ 37.583993][ T6515] do_group_exit+0x194/0x22c [ 37.585272][ T6515] pid_child_should_wake+0x0/0x1dc [ 37.586779][ T6515] invoke_syscall+0x98/0x2b8 [ 37.588042][ T6515] el0_svc_common+0x130/0x23c [ 37.589284][ T6515] do_el0_svc+0x48/0x58 [ 37.590404][ T6515] el0_svc+0x58/0x17c [ 37.591422][ T6515] el0t_64_sync_handler+0x78/0x108 [ 37.592774][ T6515] el0t_64_sync+0x198/0x19c [ 37.599711][ T6515] ocfs2: Unmounting device (7,0) on (node local)