Warning: Permanently added '10.128.0.196' (ED25519) to the list of known hosts. executing program [ 39.505001][ T6489] loop0: detected capacity change from 0 to 32768 [ 39.506142][ T6489] ======================================================= [ 39.506142][ T6489] WARNING: The mand mount option has been deprecated and [ 39.506142][ T6489] and is ignored by this kernel. Remove the mand [ 39.506142][ T6489] option from the mount to silence this warning. [ 39.506142][ T6489] ======================================================= [ 39.531943][ T6489] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 39.572843][ T6489] [ 39.573556][ T6489] ====================================================== [ 39.575310][ T6489] WARNING: possible circular locking dependency detected [ 39.577201][ T6489] 6.15.0-rc6-syzkaller-ga82e92598ab1 #0 Not tainted [ 39.578952][ T6489] ------------------------------------------------------ [ 39.580836][ T6489] syz-executor190/6489 is trying to acquire lock: [ 39.582550][ T6489] ffff0000dd7ad100 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4){+.+.}-{4:4}, at: __ocfs2_flush_truncate_log+0x2e8/0xf6c [ 39.586095][ T6489] [ 39.586095][ T6489] but task is already holding lock: [ 39.588066][ T6489] ffff0000dd7b3480 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#6){+.+.}-{4:4}, at: ocfs2_flush_truncate_log+0x44/0x6c [ 39.591520][ T6489] [ 39.591520][ T6489] which lock already depends on the new lock. [ 39.591520][ T6489] [ 39.594320][ T6489] [ 39.594320][ T6489] the existing dependency chain (in reverse order) is: [ 39.596742][ T6489] [ 39.596742][ T6489] -> #1 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#6){+.+.}-{4:4}: [ 39.599597][ T6489] down_write+0x50/0xc0 [ 39.600865][ T6489] __ocfs2_move_extents_range+0x13ec/0x2abc [ 39.602591][ T6489] ocfs2_move_extents+0x314/0x7f0 [ 39.604084][ T6489] ocfs2_ioctl_move_extents+0x424/0x5f0 [ 39.605760][ T6489] ocfs2_ioctl+0x1c4/0x738 [ 39.607110][ T6489] __arm64_sys_ioctl+0x14c/0x1c4 [ 39.608581][ T6489] invoke_syscall+0x98/0x2b8 [ 39.609961][ T6489] el0_svc_common+0x130/0x23c [ 39.611393][ T6489] do_el0_svc+0x48/0x58 [ 39.612645][ T6489] el0_svc+0x58/0x17c [ 39.613910][ T6489] el0t_64_sync_handler+0x78/0x108 [ 39.615452][ T6489] el0t_64_sync+0x198/0x19c [ 39.616785][ T6489] [ 39.616785][ T6489] -> #0 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4){+.+.}-{4:4}: [ 39.619652][ T6489] __lock_acquire+0x1728/0x3058 [ 39.621093][ T6489] lock_acquire+0x14c/0x2e0 [ 39.622441][ T6489] down_write+0x50/0xc0 [ 39.623702][ T6489] __ocfs2_flush_truncate_log+0x2e8/0xf6c [ 39.625372][ T6489] ocfs2_flush_truncate_log+0x4c/0x6c [ 39.626939][ T6489] ocfs2_sync_fs+0xf8/0x2a4 [ 39.628274][ T6489] sync_filesystem+0x1a0/0x218 [ 39.629678][ T6489] generic_shutdown_super+0x70/0x2b8 [ 39.631246][ T6489] kill_block_super+0x44/0x90 [ 39.632632][ T6489] deactivate_locked_super+0xc4/0x12c [ 39.634180][ T6489] deactivate_super+0xe0/0x100 [ 39.635601][ T6489] cleanup_mnt+0x31c/0x3ac [ 39.636915][ T6489] __cleanup_mnt+0x20/0x30 [ 39.638217][ T6489] task_work_run+0x1dc/0x260 [ 39.639596][ T6489] do_exit+0x4e8/0x1998 [ 39.640905][ T6489] do_group_exit+0x194/0x22c [ 39.642253][ T6489] pid_child_should_wake+0x0/0x1dc [ 39.643746][ T6489] invoke_syscall+0x98/0x2b8 [ 39.645135][ T6489] el0_svc_common+0x130/0x23c [ 39.646506][ T6489] do_el0_svc+0x48/0x58 [ 39.647713][ T6489] el0_svc+0x58/0x17c [ 39.648936][ T6489] el0t_64_sync_handler+0x78/0x108 [ 39.650451][ T6489] el0t_64_sync+0x198/0x19c [ 39.651774][ T6489] [ 39.651774][ T6489] other info that might help us debug this: [ 39.651774][ T6489] [ 39.654565][ T6489] Possible unsafe locking scenario: [ 39.654565][ T6489] [ 39.656561][ T6489] CPU0 CPU1 [ 39.657987][ T6489] ---- ---- [ 39.659427][ T6489] lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#6); [ 39.661387][ T6489] lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4); [ 39.664027][ T6489] lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#6); [ 39.666651][ T6489] lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4); [ 39.668621][ T6489] [ 39.668621][ T6489] *** DEADLOCK *** [ 39.668621][ T6489] [ 39.670829][ T6489] 2 locks held by syz-executor190/6489: [ 39.672263][ T6489] #0: ffff0000c817e0e0 (&type->s_umount_key#48){+.+.}-{4:4}, at: deactivate_super+0xd8/0x100 [ 39.675174][ T6489] #1: ffff0000dd7b3480 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#6){+.+.}-{4:4}, at: ocfs2_flush_truncate_log+0x44/0x6c [ 39.678758][ T6489] [ 39.678758][ T6489] stack backtrace: [ 39.680359][ T6489] CPU: 1 UID: 0 PID: 6489 Comm: syz-executor190 Not tainted 6.15.0-rc6-syzkaller-ga82e92598ab1 #0 PREEMPT [ 39.683389][ T6489] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 39.686106][ T6489] Call trace: [ 39.686973][ T6489] show_stack+0x2c/0x3c (C) [ 39.688168][ T6489] __dump_stack+0x30/0x40 [ 39.689338][ T6489] dump_stack_lvl+0xd8/0x12c [ 39.690554][ T6489] dump_stack+0x1c/0x28 [ 39.691661][ T6489] print_circular_bug+0x324/0x32c [ 39.693018][ T6489] check_noncircular+0x154/0x174 [ 39.694337][ T6489] __lock_acquire+0x1728/0x3058 [ 39.695588][ T6489] lock_acquire+0x14c/0x2e0 [ 39.696741][ T6489] down_write+0x50/0xc0 [ 39.697852][ T6489] __ocfs2_flush_truncate_log+0x2e8/0xf6c [ 39.699389][ T6489] ocfs2_flush_truncate_log+0x4c/0x6c [ 39.700849][ T6489] ocfs2_sync_fs+0xf8/0x2a4 [ 39.702049][ T6489] sync_filesystem+0x1a0/0x218 [ 39.703313][ T6489] generic_shutdown_super+0x70/0x2b8 [ 39.704703][ T6489] kill_block_super+0x44/0x90 [ 39.705874][ T6489] deactivate_locked_super+0xc4/0x12c [