INFO: task syz-executor198:3128 blocked for more than 143 seconds. Not tainted 6.1.0-rc8-syzkaller-33330-ga5541c0811a0 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor198 state:D stack:0 pid:3128 ppid:3126 flags:0x00000008 Call trace: __switch_to+0x180/0x298 arch/arm64/kernel/process.c:555 context_switch kernel/sched/core.c:5209 [inline] __schedule+0x408/0x594 kernel/sched/core.c:6521 schedule+0x64/0xa4 kernel/sched/core.c:6597 xlog_grant_head_wait+0x118/0x1e0 fs/xfs/xfs_log.c:307 xlog_grant_head_check+0x118/0x19c xfs_log_reserve+0x21c/0x3d8 fs/xfs/xfs_log.c:486 xfs_trans_reserve+0x13c/0x260 fs/xfs/xfs_trans.c:194 xfs_trans_alloc+0x258/0x3d0 fs/xfs/xfs_trans.c:283 xfs_sync_sb+0x4c/0xcc fs/xfs/libxfs/xfs_sb.c:1003 xfs_log_cover fs/xfs/xfs_log.c:1273 [inline] xfs_log_quiesce+0x318/0x47c fs/xfs/xfs_log.c:1090 xfs_log_clean+0x34/0x1ec fs/xfs/xfs_log.c:1097 xfs_log_unmount+0x24/0x70 fs/xfs/xfs_log.c:1112 xfs_unmountfs+0xc0/0x14c fs/xfs/xfs_mount.c:1081 xfs_fs_put_super+0x4c/0x138 fs/xfs/xfs_super.c:1115 generic_shutdown_super+0x94/0x198 fs/super.c:492 kill_block_super+0x30/0x78 fs/super.c:1428 deactivate_locked_super+0x70/0xe8 fs/super.c:332 deactivate_super+0xd0/0xd4 fs/super.c:363 cleanup_mnt+0x184/0x1c0 fs/namespace.c:1186 __cleanup_mnt+0x20/0x30 fs/namespace.c:1193 task_work_run+0x100/0x148 kernel/task_work.c:179 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] do_notify_resume+0x174/0x1f0 arch/arm64/kernel/signal.c:1132 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline] el0_svc+0x9c/0x150 arch/arm64/kernel/entry-common.c:638 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:584 Showing all locks held in the system: 1 lock held by rcu_tasks_kthre/11: #0: ffff80000d4a4768 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x3c/0x450 kernel/rcu/tasks.h:507 1 lock held by rcu_tasks_trace/12: #0: ffff80000d4a4db8 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x3c/0x450 kernel/rcu/tasks.h:507 1 lock held by khungtaskd/27: #0: ffff80000d4a4640 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x4/0x48 include/linux/rcupdate.h:303 2 locks held by getty/2761: #0: ffff0000c80ea898 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x28/0x58 drivers/tty/tty_ldisc.c:244 #1: ffff80000f6be2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x19c/0x89c drivers/tty/n_tty.c:2177 1 lock held by syz-executor198/3128: #0: ffff0000cb66b0e0 (&type->s_umount_key#41){+.+.}-{3:3}, at: deactivate_super+0xc8/0xd4 fs/super.c:362 =============================================