INFO: task syz-executor150:6149 blocked for more than 143 seconds. Not tainted 6.7.0-rc3-syzkaller-g2cc14f52aeb7 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor150 state:D stack:0 pid:6149 tgid:6149 ppid:6117 flags:0x00000005 Call trace: __switch_to+0x314/0x560 arch/arm64/kernel/process.c:556 context_switch kernel/sched/core.c:5376 [inline] __schedule+0x1354/0x2360 kernel/sched/core.c:6688 __schedule_loop kernel/sched/core.c:6763 [inline] schedule+0xb8/0x19c kernel/sched/core.c:6778 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6835 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:1580 filemap_invalidate_lock include/linux/fs.h:847 [inline] blk_ioctl_zeroout block/ioctl.c:184 [inline] blkdev_common_ioctl+0x19e4/0x2884 block/ioctl.c:513 blkdev_ioctl+0x35c/0xae4 block/ioctl.c:627 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:871 [inline] __se_sys_ioctl fs/ioctl.c:857 [inline] __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:857 __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: ffff80008e6b4740 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:300 1 lock held by klogd/5702: 2 locks held by getty/5854: #0: ffff0000d7b100a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340 #1: ffff800094fc02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x41c/0x1228 drivers/tty/n_tty.c:2201 2 locks held by syz-executor150/6148: 1 lock held by syz-executor150/6149: #0: ffff0000c1553758 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:847 [inline] #0: ffff0000c1553758 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:184 [inline] #0: ffff0000c1553758 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x19e4/0x2884 block/ioctl.c:513 1 lock held by syz-executor150/6155: #0: ffff0000c1553758 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:847 [inline] #0: ffff0000c1553758 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:184 [inline] #0: ffff0000c1553758 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x19e4/0x2884 block/ioctl.c:513 1 lock held by syz-executor150/6156: #0: ffff0000c1553758 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:847 [inline] #0: ffff0000c1553758 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:184 [inline] #0: ffff0000c1553758 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x19e4/0x2884 block/ioctl.c:513 1 lock held by syz-executor150/6158: #0: ffff0000c1553758 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:847 [inline] #0: ffff0000c1553758 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:184 [inline] #0: ffff0000c1553758 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x19e4/0x2884 block/ioctl.c:513 1 lock held by syz-executor150/6159: #0: ffff0000c1553758 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:847 [inline] #0: ffff0000c1553758 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:184 [inline] #0: ffff0000c1553758 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x19e4/0x2884 block/ioctl.c:513 =============================================