INFO: task syz-executor.2:8553 blocked for more than 143 seconds. Not tainted 6.6.0-rc7-syzkaller-g8de1e7afcc1c #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack:0 pid:8553 ppid:8538 flags:0x00000005 Call trace: __switch_to+0x314/0x560 arch/arm64/kernel/process.c:556 context_switch kernel/sched/core.c:5382 [inline] __schedule+0x1364/0x23b4 kernel/sched/core.c:6695 schedule+0xc4/0x170 kernel/sched/core.c:6771 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6830 rwsem_down_write_slowpath+0xcfc/0x1aa0 kernel/locking/rwsem.c:1178 __down_write_common kernel/locking/rwsem.c:1306 [inline] __down_write kernel/locking/rwsem.c:1315 [inline] down_write+0xb4/0xc0 kernel/locking/rwsem.c:1574 __super_lock fs/super.c:56 [inline] super_lock+0x11c/0x328 fs/super.c:117 super_lock_excl fs/super.c:152 [inline] grab_super+0x6c/0x17c fs/super.c:539 grab_super_dead+0x9c/0x374 fs/super.c:577 sget+0x168/0x3d0 fs/super.c:878 mount_bdev+0xf0/0x2b4 fs/super.c:1609 minix_mount+0x44/0x58 fs/minix/inode.c:684 legacy_get_tree+0xd4/0x16c fs/fs_context.c:662 vfs_get_tree+0x90/0x288 fs/super.c:1750 do_new_mount+0x25c/0x8c8 fs/namespace.c:3335 path_mount+0x590/0xe04 fs/namespace.c:3662 do_mount fs/namespace.c:3675 [inline] __do_sys_mount fs/namespace.c:3884 [inline] __se_sys_mount fs/namespace.c:3861 [inline] __arm64_sys_mount+0x45c/0x594 fs/namespace.c:3861 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155 el0_svc+0x54/0x158 arch/arm64/kernel/entry-common.c:678 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:595 Showing all locks held in the system: 1 lock held by khungtaskd/29: #0: ffff80008e513840 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:302 2 locks held by kworker/u4:6/420: 2 locks held by getty/5850: #0: ffff0000d251c0a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340 #1: ffff800094c002f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x414/0x1214 drivers/tty/n_tty.c:2206 1 lock held by syz-executor.3/7878: 1 lock held by syz-executor.3/7985: 1 lock held by syz-executor.2/8449: #0: ffff0001318e60e0 (&type->s_umount_key#57){+.+.}-{3:3}, at: __super_lock fs/super.c:56 [inline] #0: ffff0001318e60e0 (&type->s_umount_key#57){+.+.}-{3:3}, at: __super_lock_excl fs/super.c:71 [inline] #0: ffff0001318e60e0 (&type->s_umount_key#57){+.+.}-{3:3}, at: mount_bdev+0x1ac/0x2b4 fs/super.c:1627 1 lock held by syz-executor.2/8553: #0: ffff0001318e60e0 (&type->s_umount_key#57){+.+.}-{3:3}, at: __super_lock fs/super.c:56 [inline] #0: ffff0001318e60e0 (&type->s_umount_key#57){+.+.}-{3:3}, at: super_lock+0x11c/0x328 fs/super.c:117 1 lock held by syz-executor.2/8614: #0: ffff0001318e60e0 (&type->s_umount_key#57){+.+.}-{3:3}, at: __super_lock fs/super.c:56 [inline] #0: ffff0001318e60e0 (&type->s_umount_key#57){+.+.}-{3:3}, at: super_lock+0x11c/0x328 fs/super.c:117 2 locks held by syz-executor.3/9448: =============================================