INFO: task syz-executor.1:12206 blocked for more than 143 seconds. Not tainted 6.4.0-rc7-syzkaller-00127-ge40939bbfc68 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.1 state:D stack:0 pid:12206 ppid:6343 flags:0x0000000d Call trace: __switch_to+0x320/0x754 arch/arm64/kernel/process.c:556 context_switch kernel/sched/core.c:5343 [inline] __schedule+0x1368/0x23b8 kernel/sched/core.c:6669 schedule+0xc4/0x170 kernel/sched/core.c:6745 io_schedule+0x8c/0x12c kernel/sched/core.c:8979 folio_wait_bit_common+0x65c/0xb90 mm/filemap.c:1301 __folio_lock mm/filemap.c:1664 [inline] folio_lock include/linux/pagemap.h:955 [inline] __filemap_get_folio+0x1e4/0x964 mm/filemap.c:1937 truncate_inode_pages_range+0x444/0xf74 mm/truncate.c:377 truncate_inode_pages mm/truncate.c:449 [inline] truncate_inode_pages_final+0x90/0xc0 mm/truncate.c:484 ntfs_evict_inode+0x20/0x48 fs/ntfs3/inode.c:1791 evict+0x260/0x68c fs/inode.c:665 iput_final fs/inode.c:1747 [inline] iput+0x734/0x818 fs/inode.c:1773 ntfs_fill_super+0x327c/0x3990 fs/ntfs3/super.c:1267 get_tree_bdev+0x360/0x54c fs/super.c:1303 ntfs_fs_get_tree+0x28/0x38 fs/ntfs3/super.c:1455 vfs_get_tree+0x90/0x274 fs/super.c:1510 do_new_mount+0x25c/0x8c4 fs/namespace.c:3039 path_mount+0x590/0xe04 fs/namespace.c:3369 do_mount fs/namespace.c:3382 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount fs/namespace.c:3568 [inline] __arm64_sys_mount+0x45c/0x594 fs/namespace.c:3568 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x244 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:191 el0_svc+0x4c/0x160 arch/arm64/kernel/entry-common.c:647 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:665 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591 Showing all locks held in the system: 2 locks held by kworker/u4:1/12: 1 lock held by rcu_tasks_kthre/13: #0: ffff80008e0c16d0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x44/0xcf4 kernel/rcu/tasks.h:518 1 lock held by rcu_tasks_trace/14: #0: ffff80008e0c1a90 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x44/0xcf4 kernel/rcu/tasks.h:518 1 lock held by khungtaskd/28: #0: ffff80008e0c1500 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:326 2 locks held by udevd/5594: 2 locks held by getty/5733: #0: ffff0000d4842098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340 #1: ffff800092eb02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x414/0x1210 drivers/tty/n_tty.c:2176 1 lock held by syz-executor.0/6351: #0: ffff80008e0c6b78 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:293 [inline] #0: ffff80008e0c6b78 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x3ac/0x728 kernel/rcu/tree_exp.h:992 2 locks held by kworker/1:7/6482: #0: ffff0000c0021d38 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x664/0x12d4 kernel/workqueue.c:2378 #1: ffff800096f67c20 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work+0x6a8/0x12d4 kernel/workqueue.c:2380 1 lock held by syz-executor.1/12206: #0: ffff0000dae220e0 (&type->s_umount_key#48/1){+.+.}-{3:3}, at: alloc_super+0x1b4/0x824 fs/super.c:228 2 locks held by syz-executor.5/15660: 1 lock held by syz-executor.3/15662: #0: ffff0000ddfa80e0 (&type->s_umount_key#48/1){+.+.}-{3:3} , at: raw_spin_rq_lock_nested kernel/sched/core.c:558 [inline] , at: raw_spin_rq_lock kernel/sched/sched.h:1366 [inline] , at: rq_lock kernel/sched/sched.h:1653 [inline] , at: __schedule+0x2d8/0x23b8 kernel/sched/core.c:6586 3 locks held by syz-executor.2/15666: 1 lock held by syz-executor.4/15668: =============================================