INFO: task syz-executor.0:10813 blocked for more than 143 seconds. Not tainted 6.4.0-rc7-syzkaller-ge40939bbfc68 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.0 state:D stack:0 pid:10813 ppid:6008 flags:0x00000005 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 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6804 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 filemap_invalidate_lock include/linux/fs.h:820 [inline] blk_ioctl_zeroout block/ioctl.c:182 [inline] blkdev_common_ioctl+0x1a08/0x26b4 block/ioctl.c:486 blkdev_ioctl+0x380/0xb40 block/ioctl.c:609 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl fs/ioctl.c:856 [inline] __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:856 __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 INFO: task syz-executor.5:10857 blocked for more than 143 seconds. Not tainted 6.4.0-rc7-syzkaller-ge40939bbfc68 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.5 state:D stack:0 pid:10857 ppid:10822 flags:0x00000005 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 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6804 rwsem_down_read_slowpath+0x57c/0xe58 kernel/locking/rwsem.c:1086 __down_read_common kernel/locking/rwsem.c:1250 [inline] __down_read kernel/locking/rwsem.c:1263 [inline] down_read+0xa0/0x2fc kernel/locking/rwsem.c:1522 filemap_invalidate_lock_shared include/linux/fs.h:830 [inline] page_cache_ra_unbounded+0xc8/0x58c mm/readahead.c:226 do_page_cache_ra mm/readahead.c:300 [inline] page_cache_ra_order+0x7fc/0x994 mm/readahead.c:560 do_sync_mmap_readahead+0x3a4/0x844 filemap_fault+0x5bc/0x1154 mm/filemap.c:3285 __do_fault+0x11c/0x3d8 mm/memory.c:4176 do_shared_fault mm/memory.c:4585 [inline] do_fault mm/memory.c:4663 [inline] do_pte_missing mm/memory.c:3647 [inline] handle_pte_fault mm/memory.c:4947 [inline] __handle_mm_fault mm/memory.c:5089 [inline] handle_mm_fault+0x19f8/0x48ec mm/memory.c:5243 __do_page_fault arch/arm64/mm/fault.c:523 [inline] do_page_fault+0x81c/0xcbc arch/arm64/mm/fault.c:655 do_translation_fault+0x94/0xc8 arch/arm64/mm/fault.c:741 do_mem_abort+0x74/0x200 arch/arm64/mm/fault.c:877 el0_da+0x64/0x17c arch/arm64/kernel/entry-common.c:517 el0t_64_sync_handler+0xcc/0xfc arch/arm64/kernel/entry-common.c:668 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591 Showing all locks held in the system: 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 getty/5732: #0: ffff0000c2d56098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340 #1: ffff800092ec32f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x414/0x1210 drivers/tty/n_tty.c:2176 1 lock held by syz-executor.5/10759: 1 lock held by syz-executor.0/10813: #0: ffff0000c14b4ac8 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:820 [inline] #0: ffff0000c14b4ac8 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:182 [inline] #0: ffff0000c14b4ac8 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1a08/0x26b4 block/ioctl.c:486 1 lock held by syz-executor.5/10857: #0: ffff0000c14b4ac8 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:830 [inline] #0: ffff0000c14b4ac8 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0xc8/0x58c mm/readahead.c:226 1 lock held by syz-executor.0/10899: #0: ffff0000c14b4ac8 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:820 [inline] #0: ffff0000c14b4ac8 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:182 [inline] #0: ffff0000c14b4ac8 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1a08/0x26b4 block/ioctl.c:486 1 lock held by syz-executor.0/10900: #0: ffff0000c14b4ac8 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:820 [inline] #0: ffff0000c14b4ac8 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:182 [inline] #0: ffff0000c14b4ac8 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1a08/0x26b4 block/ioctl.c:486 1 lock held by syz-executor.0/11011: #0: ffff0000c14b4ac8 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:820 [inline] #0: ffff0000c14b4ac8 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:182 [inline] #0: ffff0000c14b4ac8 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1a08/0x26b4 block/ioctl.c:486 =============================================