Warning: Permanently added '10.128.1.10' (ED25519) to the list of known hosts. executing program [ 39.789511][ T6490] loop0: detected capacity change from 0 to 32768 [ 39.790884][ T6490] ======================================================= [ 39.790884][ T6490] WARNING: The mand mount option has been deprecated and [ 39.790884][ T6490] and is ignored by this kernel. Remove the mand [ 39.790884][ T6490] option from the mount to silence this warning. [ 39.790884][ T6490] ======================================================= [ 39.824507][ T6490] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 39.847630][ T6490] [ 39.848424][ T6490] ====================================================== [ 39.850673][ T6490] WARNING: possible circular locking dependency detected [ 39.852792][ T6490] 6.15.0-rc7-syzkaller-gd7fa1af5b33e #0 Not tainted [ 39.854872][ T6490] ------------------------------------------------------ [ 39.856958][ T6490] syz-executor106/6490 is trying to acquire lock: [ 39.858890][ T6490] ffff0000ddb9d100 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4){+.+.}-{4:4}, at: __ocfs2_flush_truncate_log+0x2e8/0xf6c [ 39.862927][ T6490] [ 39.862927][ T6490] but task is already holding lock: [ 39.865229][ T6490] ffff0000dd9c3480 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#6){+.+.}-{4:4}, at: ocfs2_flush_truncate_log+0x44/0x6c [ 39.868958][ T6490] [ 39.868958][ T6490] which lock already depends on the new lock. [ 39.868958][ T6490] [ 39.872072][ T6490] [ 39.872072][ T6490] the existing dependency chain (in reverse order) is: [ 39.874723][ T6490] [ 39.874723][ T6490] -> #1 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#6){+.+.}-{4:4}: [ 39.877910][ T6490] down_write+0x50/0xc0 [ 39.879252][ T6490] __ocfs2_move_extents_range+0x13ec/0x2abc [ 39.881275][ T6490] ocfs2_move_extents+0x314/0x7f0 [ 39.882848][ T6490] ocfs2_ioctl_move_extents+0x424/0x5f0 [ 39.884580][ T6490] ocfs2_ioctl+0x1c4/0x738 [ 39.886080][ T6490] __arm64_sys_ioctl+0x14c/0x1c4 [ 39.887647][ T6490] invoke_syscall+0x98/0x2b8 [ 39.889120][ T6490] el0_svc_common+0x130/0x23c [ 39.890662][ T6490] do_el0_svc+0x48/0x58 [ 39.892056][ T6490] el0_svc+0x58/0x17c [ 39.893364][ T6490] el0t_64_sync_handler+0x78/0x108 [ 39.895015][ T6490] el0t_64_sync+0x198/0x19c [ 39.896470][ T6490] [ 39.896470][ T6490] -> #0 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4){+.+.}-{4:4}: [ 39.899653][ T6490] __lock_acquire+0x1728/0x3058 [ 39.901284][ T6490] lock_acquire+0x14c/0x2e0 [ 39.902829][ T6490] down_write+0x50/0xc0 [ 39.904143][ T6490] __ocfs2_flush_truncate_log+0x2e8/0xf6c [ 39.905993][ T6490] ocfs2_flush_truncate_log+0x4c/0x6c [ 39.907769][ T6490] ocfs2_sync_fs+0xf8/0x2a4 [ 39.909367][ T6490] sync_filesystem+0x1a0/0x218 [ 39.910995][ T6490] generic_shutdown_super+0x70/0x2b8 [ 39.912703][ T6490] kill_block_super+0x44/0x90 [ 39.914210][ T6490] deactivate_locked_super+0xc4/0x12c [ 39.916016][ T6490] deactivate_super+0xe0/0x100 [ 39.917638][ T6490] cleanup_mnt+0x31c/0x3ac [ 39.919111][ T6490] __cleanup_mnt+0x20/0x30 [ 39.920529][ T6490] task_work_run+0x1dc/0x260 [ 39.922099][ T6490] do_exit+0x4e8/0x1998 [ 39.923429][ T6490] do_group_exit+0x194/0x22c [ 39.924955][ T6490] pid_child_should_wake+0x0/0x1dc [ 39.926664][ T6490] invoke_syscall+0x98/0x2b8 [ 39.928208][ T6490] el0_svc_common+0x130/0x23c [ 39.929687][ T6490] do_el0_svc+0x48/0x58 [ 39.931106][ T6490] el0_svc+0x58/0x17c [ 39.932522][ T6490] el0t_64_sync_handler+0x78/0x108 [ 39.934221][ T6490] el0t_64_sync+0x198/0x19c [ 39.935711][ T6490] [ 39.935711][ T6490] other info that might help us debug this: [ 39.935711][ T6490] [ 39.938644][ T6490] Possible unsafe locking scenario: [ 39.938644][ T6490] [ 39.940757][ T6490] CPU0 CPU1 [ 39.942336][ T6490] ---- ---- [ 39.943864][ T6490] lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#6); [ 39.945999][ T6490] lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4); [ 39.948894][ T6490] lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#6); [ 39.951783][ T6490] lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4); [ 39.953908][ T6490] [ 39.953908][ T6490] *** DEADLOCK *** [ 39.953908][ T6490] [ 39.956279][ T6490] 2 locks held by syz-executor106/6490: [ 39.957910][ T6490] #0: ffff0000c8fae0e0 (&type->s_umount_key#48){+.+.}-{4:4}, at: deactivate_super+0xd8/0x100 [ 39.960981][ T6490] #1: ffff0000dd9c3480 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#6){+.+.}-{4:4}, at: ocfs2_flush_truncate_log+0x44/0x6c [ 39.964889][ T6490] [ 39.964889][ T6490] stack backtrace: [ 39.966591][ T6490] CPU: 0 UID: 0 PID: 6490 Comm: syz-executor106 Not tainted 6.15.0-rc7-syzkaller-gd7fa1af5b33e #0 PREEMPT [ 39.969864][ T6490] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 39.972841][ T6490] Call trace: [ 39.973798][ T6490] show_stack+0x2c/0x3c (C) [ 39.975169][ T6490] __dump_stack+0x30/0x40 [ 39.976355][ T6490] dump_stack_lvl+0xd8/0x12c [ 39.977668][ T6490] dump_stack+0x1c/0x28 [ 39.978905][ T6490] print_circular_bug+0x324/0x32c [ 39.980401][ T6490] check_noncircular+0x154/0x174 [ 39.981866][ T6490] __lock_acquire+0x1728/0x3058 [ 39.983320][ T6490] lock_acquire+0x14c/0x2e0 [ 39.984686][ T6490] down_write+0x50/0xc0 [ 39.985886][ T6490] __ocfs2_flush_truncate_log+0x2e8/0xf6c [ 39.987480][ T6490] ocfs2_flush_truncate_log+0x4c/0x6c [ 39.989015][ T6490] ocfs2_sync_fs+0xf8/0x2a4 [ 39.990375][ T6490] sync_filesystem+0x1a0/0x218 [ 39.991862][ T6490] generic_shutdown_super+0x70/0x2b8 [ 39.993375][ T6490] kill_block_super+0x44/0x90 [ 39.994789][ T6490] deactivate_locked_super+0xc4/0x12c [ 39.996273][ T6490] deactivate_super+0xe0/0x100 [ 39.997633][ T6490] cleanup_mnt+0x31c/0x3ac [ 39.998853][ T6490] __cleanup_mnt+0x20/0x30 [ 40.000128][ T6490] task_work_run+0x1dc/0x260 [ 40.001471][ T6490] do_exit+0x4e8/0x1998 [ 40.002779][ T6490] do_group_exit+0x194/0x22c [ 40.004077][ T6490] pid_child_should_wake+0x0/0x1dc [ 40.005560][ T6490] invoke_syscall+0x98/0x2b8 [ 40.006927][ T6490] el0_svc_common+0x130/0x23c [ 40.008276][ T6490] do_el0_svc+0x48/0x58 [ 40.009445][ T6490] el0_svc+0x58/0x17c [ 40.010553][ T6490] el0t_64_sync_handler+0x78/0x108 [ 40.012096][ T6490] el0t_64_sync+0x198/0x19c [ 40.018926][ T6490] ocfs2: Unmounting device (7,0) on (node local)