Warning: Permanently added '10.128.1.143' (ED25519) to the list of known hosts. executing program [ 63.376582][ T6487] loop0: detected capacity change from 0 to 32768 [ 63.378455][ T6487] ======================================================= [ 63.378455][ T6487] WARNING: The mand mount option has been deprecated and [ 63.378455][ T6487] and is ignored by this kernel. Remove the mand [ 63.378455][ T6487] option from the mount to silence this warning. [ 63.378455][ T6487] ======================================================= [ 63.397774][ T6487] ocfs2: Mounting device (7,0) on (node local, slot 0) with writeback data mode. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 65.481470][ T12] [ 65.482219][ T12] ====================================================== [ 65.484153][ T12] WARNING: possible circular locking dependency detected [ 65.486119][ T12] 6.15.0-rc4-syzkaller-ge0f4c8dd9d2d #0 Not tainted [ 65.487942][ T12] ------------------------------------------------------ [ 65.489854][ T12] kworker/u8:0/12 is trying to acquire lock: [ 65.491547][ T12] ffff0000de17d100 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4){+.+.}-{4:4}, at: __ocfs2_flush_truncate_log+0x2e8/0xf6c [ 65.495417][ T12] [ 65.495417][ T12] but task is already holding lock: [ 65.497367][ T12] ffff0000de143480 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#5){+.+.}-{4:4}, at: ocfs2_truncate_log_worker+0xa0/0x1a0 [ 65.501549][ T12] [ 65.501549][ T12] which lock already depends on the new lock. [ 65.501549][ T12] [ 65.504492][ T12] [ 65.504492][ T12] the existing dependency chain (in reverse order) is: [ 65.507050][ T12] [ 65.507050][ T12] -> #1 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#5){+.+.}-{4:4}: [ 65.509874][ T12] down_write+0x50/0xc0 [ 65.511118][ T12] __ocfs2_move_extents_range+0x13ec/0x2abc [ 65.513175][ T12] ocfs2_move_extents+0x314/0x7f0 [ 65.514727][ T12] ocfs2_ioctl_move_extents+0x424/0x5f0 [ 65.516522][ T12] ocfs2_ioctl+0x1c4/0x738 [ 65.517935][ T12] __arm64_sys_ioctl+0x14c/0x1c4 [ 65.519428][ T12] invoke_syscall+0x98/0x2b8 [ 65.520821][ T12] el0_svc_common+0x130/0x23c [ 65.522299][ T12] do_el0_svc+0x48/0x58 [ 65.523595][ T12] el0_svc+0x58/0x150 [ 65.524832][ T12] el0t_64_sync_handler+0x78/0x108 [ 65.526361][ T12] el0t_64_sync+0x198/0x19c [ 65.527892][ T12] [ 65.527892][ T12] -> #0 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4){+.+.}-{4:4}: [ 65.530749][ T12] __lock_acquire+0x1728/0x3058 [ 65.532152][ T12] lock_acquire+0x14c/0x2e0 [ 65.533568][ T12] down_write+0x50/0xc0 [ 65.534848][ T12] __ocfs2_flush_truncate_log+0x2e8/0xf6c [ 65.536508][ T12] ocfs2_truncate_log_worker+0xa8/0x1a0 [ 65.538177][ T12] process_one_work+0x7e8/0x156c [ 65.539686][ T12] worker_thread+0x958/0xed8 [ 65.541090][ T12] kthread+0x5fc/0x75c [ 65.542370][ T12] ret_from_fork+0x10/0x20 [ 65.543729][ T12] [ 65.543729][ T12] other info that might help us debug this: [ 65.543729][ T12] [ 65.546466][ T12] Possible unsafe locking scenario: [ 65.546466][ T12] [ 65.548483][ T12] CPU0 CPU1 [ 65.550065][ T12] ---- ---- [ 65.551529][ T12] lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#5); [ 65.553538][ T12] lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4); [ 65.556291][ T12] lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#5); [ 65.559012][ T12] lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4); [ 65.561031][ T12] [ 65.561031][ T12] *** DEADLOCK *** [ 65.561031][ T12] [ 65.563328][ T12] 3 locks held by kworker/u8:0/12: [ 65.564766][ T12] #0: ffff0000c7031948 ((wq_completion)ocfs2_wq){+.+.}-{0:0}, at: process_one_work+0x658/0x156c [ 65.567646][ T12] #1: ffff800097637bc0 ((work_completion)(&(&osb->osb_truncate_log_wq)->work)){+.+.}-{0:0}, at: process_one_work+0x6ec/0x156c [ 65.571266][ T12] #2: ffff0000de143480 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#5){+.+.}-{4:4}, at: ocfs2_truncate_log_worker+0xa0/0x1a0 [ 65.575106][ T12] [ 65.575106][ T12] stack backtrace: [ 65.576766][ T12] CPU: 0 UID: 0 PID: 12 Comm: kworker/u8:0 Not tainted 6.15.0-rc4-syzkaller-ge0f4c8dd9d2d #0 PREEMPT [ 65.579915][ T12] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 65.582767][ T12] Workqueue: ocfs2_wq ocfs2_truncate_log_worker [ 65.584472][ T12] Call trace: [ 65.585345][ T12] show_stack+0x2c/0x3c (C) [ 65.586603][ T12] __dump_stack+0x30/0x40 [ 65.587792][ T12] dump_stack_lvl+0xd8/0x12c [ 65.589024][ T12] dump_stack+0x1c/0x28 [ 65.590156][ T12] print_circular_bug+0x324/0x32c [ 65.591516][ T12] check_noncircular+0x154/0x174 [ 65.593212][ T12] __lock_acquire+0x1728/0x3058 [ 65.594649][ T12] lock_acquire+0x14c/0x2e0 [ 65.596228][ T12] down_write+0x50/0xc0 [ 65.597649][ T12] __ocfs2_flush_truncate_log+0x2e8/0xf6c [ 65.599325][ T12] ocfs2_truncate_log_worker+0xa8/0x1a0 [ 65.600947][ T12] process_one_work+0x7e8/0x156c [ 65.602322][ T12] worker_thread+0x958/0xed8 [ 65.603578][ T12] kthread+0x5fc/0x75c [ 65.604684][ T12] ret_from_fork+0x10/0x20 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 69.883325][ T10] cfg80211: failed to load regulatory.db executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program