Warning: Permanently added '10.128.1.222' (ED25519) to the list of known hosts. [ 38.314646][ T52] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 38.316891][ T52] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 38.319024][ T52] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 38.319773][ T52] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 38.320235][ T52] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 executing program [ 38.510409][ T6516] loop0: detected capacity change from 0 to 32768 [ 38.511614][ T6516] ======================================================= [ 38.511614][ T6516] WARNING: The mand mount option has been deprecated and [ 38.511614][ T6516] and is ignored by this kernel. Remove the mand [ 38.511614][ T6516] option from the mount to silence this warning. [ 38.511614][ T6516] ======================================================= [ 38.536770][ T6516] ocfs2: Mounting device (7,0) on (node local, slot 0) with writeback data mode. [ 38.695604][ T6516] [ 38.696294][ T6516] ====================================================== [ 38.698151][ T6516] WARNING: possible circular locking dependency detected [ 38.700001][ T6516] 6.16.0-rc2-syzkaller-g9aa9b43d689e #0 Not tainted [ 38.701728][ T6516] ------------------------------------------------------ [ 38.703560][ T6516] syz-executor299/6516 is trying to acquire lock: [ 38.705296][ T6516] ffff0000ddd2d100 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4){+.+.}-{4:4}, at: __ocfs2_flush_truncate_log+0x2e8/0xf6c [ 38.708978][ T6516] [ 38.708978][ T6516] but task is already holding lock: [ 38.710964][ T6516] ffff0000ddd33480 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#5){+.+.}-{4:4}, at: ocfs2_flush_truncate_log+0x44/0x6c [ 38.714444][ T6516] [ 38.714444][ T6516] which lock already depends on the new lock. [ 38.714444][ T6516] [ 38.717281][ T6516] [ 38.717281][ T6516] the existing dependency chain (in reverse order) is: [ 38.719801][ T6516] [ 38.719801][ T6516] -> #1 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#5){+.+.}-{4:4}: [ 38.722699][ T6516] down_write+0x50/0xc0 [ 38.723987][ T6516] __ocfs2_move_extents_range+0x13ec/0x2abc [ 38.725790][ T6516] ocfs2_move_extents+0x314/0x7f0 [ 38.727390][ T6516] ocfs2_ioctl_move_extents+0x424/0x5f0 [ 38.729051][ T6516] ocfs2_ioctl+0x1c4/0x738 [ 38.730432][ T6516] __arm64_sys_ioctl+0x14c/0x1c4 [ 38.731902][ T6516] invoke_syscall+0x98/0x2b8 [ 38.733359][ T6516] el0_svc_common+0x130/0x23c [ 38.734779][ T6516] do_el0_svc+0x48/0x58 [ 38.736078][ T6516] el0_svc+0x58/0x17c [ 38.737302][ T6516] el0t_64_sync_handler+0x78/0x108 [ 38.738808][ T6516] el0t_64_sync+0x198/0x19c [ 38.740178][ T6516] [ 38.740178][ T6516] -> #0 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4){+.+.}-{4:4}: [ 38.743032][ T6516] __lock_acquire+0x1774/0x30a4 [ 38.744514][ T6516] lock_acquire+0x14c/0x2e0 [ 38.745880][ T6516] down_write+0x50/0xc0 [ 38.747147][ T6516] __ocfs2_flush_truncate_log+0x2e8/0xf6c [ 38.748821][ T6516] ocfs2_flush_truncate_log+0x4c/0x6c [ 38.750420][ T6516] ocfs2_sync_fs+0xf8/0x2a4 [ 38.751760][ T6516] sync_filesystem+0x1a0/0x218 [ 38.753206][ T6516] generic_shutdown_super+0x70/0x2b8 [ 38.754782][ T6516] kill_block_super+0x44/0x90 [ 38.756221][ T6516] deactivate_locked_super+0xc4/0x12c [ 38.757807][ T6516] deactivate_super+0xe0/0x100 [ 38.759266][ T6516] cleanup_mnt+0x31c/0x3ac [ 38.760639][ T6516] __cleanup_mnt+0x20/0x30 [ 38.761976][ T6516] task_work_run+0x1dc/0x260 [ 38.763388][ T6516] do_exit+0x51c/0x19fc [ 38.764643][ T6516] do_group_exit+0x194/0x22c [ 38.765986][ T6516] pid_child_should_wake+0x0/0x1dc [ 38.767494][ T6516] invoke_syscall+0x98/0x2b8 [ 38.768910][ T6516] el0_svc_common+0x130/0x23c [ 38.770321][ T6516] do_el0_svc+0x48/0x58 [ 38.771593][ T6516] el0_svc+0x58/0x17c [ 38.772800][ T6516] el0t_64_sync_handler+0x78/0x108 [ 38.774359][ T6516] el0t_64_sync+0x198/0x19c [ 38.775754][ T6516] [ 38.775754][ T6516] other info that might help us debug this: [ 38.775754][ T6516] [ 38.778527][ T6516] Possible unsafe locking scenario: [ 38.778527][ T6516] [ 38.780537][ T6516] CPU0 CPU1 [ 38.782031][ T6516] ---- ---- [ 38.783505][ T6516] lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#5); [ 38.785533][ T6516] lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4); [ 38.788192][ T6516] lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#5); [ 38.790917][ T6516] lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4); [ 38.792944][ T6516] [ 38.792944][ T6516] *** DEADLOCK *** [ 38.792944][ T6516] [ 38.795134][ T6516] 2 locks held by syz-executor299/6516: [ 38.796651][ T6516] #0: ffff0000c9d1e0e0 (&type->s_umount_key#49){+.+.}-{4:4}, at: deactivate_super+0xd8/0x100 [ 38.799503][ T6516] #1: ffff0000ddd33480 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#5){+.+.}-{4:4}, at: ocfs2_flush_truncate_log+0x44/0x6c [ 38.803092][ T6516] [ 38.803092][ T6516] stack backtrace: [ 38.804714][ T6516] CPU: 1 UID: 0 PID: 6516 Comm: syz-executor299 Not tainted 6.16.0-rc2-syzkaller-g9aa9b43d689e #0 PREEMPT [ 38.807821][ T6516] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 38.810546][ T6516] Call trace: [ 38.811466][ T6516] show_stack+0x2c/0x3c (C) [ 38.812693][ T6516] __dump_stack+0x30/0x40 [ 38.813894][ T6516] dump_stack_lvl+0xd8/0x12c [ 38.815229][ T6516] dump_stack+0x1c/0x28 [ 38.816382][ T6516] print_circular_bug+0x324/0x32c [ 38.817757][ T6516] check_noncircular+0x154/0x174 [ 38.819102][ T6516] __lock_acquire+0x1774/0x30a4 [ 38.820478][ T6516] lock_acquire+0x14c/0x2e0 [ 38.821687][ T6516] down_write+0x50/0xc0 [ 38.822864][ T6516] __ocfs2_flush_truncate_log+0x2e8/0xf6c [ 38.824478][ T6516] ocfs2_flush_truncate_log+0x4c/0x6c [ 38.826035][ T6516] ocfs2_sync_fs+0xf8/0x2a4 [ 38.827267][ T6516] sync_filesystem+0x1a0/0x218 [ 38.828594][ T6516] generic_shutdown_super+0x70/0x2b8 [ 38.829990][ T6516] kill_block_super+0x44/0x90 [ 38.831288][ T6516] deactivate_locked_super+0xc4/0x12c [ 38.832826][ T6516] deactivate_super+0xe0/0x100 [ 38.834167][ T6516] cleanup_mnt+0x31c/0x3ac [ 38.835380][ T6516] __cleanup_mnt+0x20/0x30 [ 38.836546][ T6516] task_work_run+0x1dc/0x260 [ 38.837839][ T6516] do_exit+0x51c/0x19fc [ 38.838958][ T6516] do_group_exit+0x194/0x22c [ 38.840214][ T6516] pid_child_should_wake+0x0/0x1dc [ 38.841572][ T6516] invoke_syscall+0x98/0x2b8 [ 38.842841][ T6516] el0_svc_common+0x130/0x23c [ 38.844132][ T6516] do_el0_svc+0x48/0x58 [ 38.845223][ T6516] el0_svc+0x58/0x17c [ 38.846328][ T6516] el0t_64_sync_handler+0x78/0x108 [ 38.847728][ T6516] el0t_64_sync+0x198/0x19c [ 38.853448][ T6516] ocfs2: Unmounting device (7,0) on (node local)