INFO: task syz-executor:4029 blocked for more than 143 seconds. Not tainted 5.15.185-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor state:D stack: 0 pid: 4029 ppid: 1 flags:0x00000009 Call trace: __switch_to+0x2f4/0x558 arch/arm64/kernel/process.c:521 context_switch kernel/sched/core.c:5030 [inline] __schedule+0xe00/0x1c0c kernel/sched/core.c:6376 schedule+0x11c/0x1c8 kernel/sched/core.c:6459 schedule_timeout+0x180/0x2c8 kernel/time/timer.c:1914 gfs2_gl_hash_clear+0x174/0x2cc fs/gfs2/glock.c:2183 gfs2_put_super+0x614/0x6bc fs/gfs2/super.c:624 generic_shutdown_super+0x130/0x2f0 fs/super.c:475 kill_block_super+0x70/0xdc fs/super.c:1427 gfs2_kill_sb+0xc0/0xd4 fs/gfs2/ops_fstype.c:-1 deactivate_locked_super+0xb8/0x13c fs/super.c:335 deactivate_super+0xf8/0x118 fs/super.c:366 cleanup_mnt+0x3a4/0x458 fs/namespace.c:1139 __cleanup_mnt+0x20/0x30 fs/namespace.c:1146 task_work_run+0x12c/0x1e0 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x24b4/0x3128 arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1e0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 Showing all locks held in the system: 1 lock held by khungtaskd/27: #0: ffff8000143311e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:311 2 locks held by kworker/u4:2/148: #0: ffff0000c0029138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x678/0x1140 kernel/workqueue.c:2283 #1: ffff80001be37c00 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: process_one_work+0x6b8/0x1140 kernel/workqueue.c:2285 1 lock held by udevd/3642: 2 locks held by getty/3792: #0: ffff0000d4db8098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x40/0x50 drivers/tty/tty_ldsem.c:340 #1: ffff80001b7902e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x2f0/0xf6c drivers/tty/n_tty.c:2158 1 lock held by syz-executor/4029: #0: ffff0000d4d000e0 (&type->s_umount_key#68){++++}-{3:3}, at: deactivate_super+0xf0/0x118 fs/super.c:365 2 locks held by kworker/u4:7/4611: #0: ffff0000c0029138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x678/0x1140 kernel/workqueue.c:2283 #1: ffff80001f0d7c00 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: process_one_work+0x6b8/0x1140 kernel/workqueue.c:2285 2 locks held by syz-executor/5478: #0: ffff0000cc1fcd18 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xdc/0x6ac block/bdev.c:915 #1: ffff0000cc38d468 (&lo->lo_mutex){+.+.}-{3:3}, at: __loop_clr_fd+0xa4/0x978 drivers/block/loop.c:1366 3 locks held by kworker/u4:8/5563: #0: ffff0001a10fc918 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested kernel/sched/core.c:475 [inline] #0: ffff0001a10fc918 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock kernel/sched/sched.h:1326 [inline] #0: ffff0001a10fc918 (&rq->__lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1621 [inline] #0: ffff0001a10fc918 (&rq->__lock){-.-.}-{2:2}, at: __schedule+0x310/0x1c0c kernel/sched/core.c:6290 #1: ffff0001a10e9c48 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x414/0x68c kernel/sched/psi.c:891 #2: ffff0001a10ea498 (&base->lock){-.-.}-{2:2}, at: lock_timer_base+0x11c/0x224 kernel/time/timer.c:946 2 locks held by kworker/u4:9/7015: 1 lock held by udevd/9085: #0: ffff0000cc1fcd18 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0x120/0x874 block/bdev.c:820 2 locks held by syz.9.3031/12615: #0: ffff0000ddb16658 (&net->xfrm.xfrm_cfg_mutex){+.+.}-{3:3}, at: pfkey_sendmsg+0x3a0/0xdd4 net/key/af_key.c:3698 #1: ffff8000163a02c8 (pfkey_mutex){+.+.}-{3:3}, at: pfkey_register+0xf0/0x748 net/key/af_key.c:1700 1 lock held by syz.2.3032/12614: #0: ffff0000c11c9cb8 (&nft_net->commit_mutex){+.+.}-{3:3}, at: nf_tables_valid_genid+0x44/0x11c net/netfilter/nf_tables_api.c:9985 4 locks held by sed/12627: 1 lock held by cryptomgr_probe/12628: #0: ffff8000148d0d10 ((crypto_chain).rwsem){++++}-{3:3}, at: blocking_notifier_call_chain+0x60/0x198 kernel/notifier.c:317 =============================================