INFO: task syz-executor.3:4518 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.3 state:D stack: 0 pid: 4518 ppid: 4262 flags:0x00000005 Call trace: __switch_to+0x2f4/0x540 arch/arm64/kernel/process.c:521 context_switch kernel/sched/core.c:5049 [inline] __schedule+0xe20/0x1c6c kernel/sched/core.c:6395 schedule+0x11c/0x1c8 kernel/sched/core.c:6478 rwsem_down_write_slowpath+0xc90/0x1490 kernel/locking/rwsem.c:1165 __down_write_common kernel/locking/rwsem.c:1292 [inline] __down_write kernel/locking/rwsem.c:1301 [inline] down_write+0xe8/0x12c kernel/locking/rwsem.c:1552 filemap_invalidate_lock include/linux/fs.h:832 [inline] blkdev_fallocate+0x208/0x424 block/fops.c:603 vfs_fallocate+0x4a4/0x5fc fs/open.c:308 ksys_fallocate fs/open.c:331 [inline] __do_sys_fallocate fs/open.c:339 [inline] __se_sys_fallocate fs/open.c:337 [inline] __arm64_sys_fallocate+0xc4/0x114 fs/open.c:337 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x28c arch/arm64/kernel/syscall.c:52 el0_svc_common+0x13c/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x5c/0x140 arch/arm64/kernel/syscall.c:181 el0_svc+0x78/0x1d0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 INFO: task syz-executor.4:4531 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.4 state:D stack: 0 pid: 4531 ppid: 4268 flags:0x00000005 Call trace: __switch_to+0x2f4/0x540 arch/arm64/kernel/process.c:521 context_switch kernel/sched/core.c:5049 [inline] __schedule+0xe20/0x1c6c kernel/sched/core.c:6395 schedule+0x11c/0x1c8 kernel/sched/core.c:6478 rwsem_down_write_slowpath+0xc90/0x1490 kernel/locking/rwsem.c:1165 __down_write_common kernel/locking/rwsem.c:1292 [inline] __down_write kernel/locking/rwsem.c:1301 [inline] down_write+0xe8/0x12c kernel/locking/rwsem.c:1552 filemap_invalidate_lock include/linux/fs.h:832 [inline] blkdev_fallocate+0x208/0x424 block/fops.c:603 vfs_fallocate+0x4a4/0x5fc fs/open.c:308 ksys_fallocate fs/open.c:331 [inline] __do_sys_fallocate fs/open.c:339 [inline] __se_sys_fallocate fs/open.c:337 [inline] __arm64_sys_fallocate+0xc4/0x114 fs/open.c:337 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x28c arch/arm64/kernel/syscall.c:52 el0_svc_common+0x13c/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x5c/0x140 arch/arm64/kernel/syscall.c:181 el0_svc+0x78/0x1d0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 Showing all locks held in the system: 2 locks held by kworker/u4:0/9: 1 lock held by khungtaskd/27: #0: ffff800014561460 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:312 1 lock held by klogd/3650: 2 locks held by getty/3803: #0: ffff0000d4557098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x40/0x50 drivers/tty/tty_ldsem.c:340 #1: ffff80001bf6e2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x2ec/0xf90 drivers/tty/n_tty.c:2158 1 lock held by syz-executor.0/4515: 1 lock held by syz-executor.3/4518: #0: ffff0000cca02cd8 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline] #0: ffff0000cca02cd8 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x208/0x424 block/fops.c:603 1 lock held by syz-executor.4/4531: #0: ffff0000cca02cd8 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline] #0: ffff0000cca02cd8 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x208/0x424 block/fops.c:603 1 lock held by syz-executor.2/4647: #0: ffff0000cca02cd8 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline] #0: ffff0000cca02cd8 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x208/0x424 block/fops.c:603 1 lock held by syz-executor.1/4649: #0: ffff0000cca02cd8 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline] #0: ffff0000cca02cd8 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x208/0x424 block/fops.c:603 1 lock held by syz-executor.0/4663: #0: ffff0000cca02cd8 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline] #0: ffff0000cca02cd8 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x208/0x424 block/fops.c:603 1 lock held by syz-executor.3/4671: #0: ffff0000cca02cd8 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline] #0: ffff0000cca02cd8 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x208/0x424 block/fops.c:603 1 lock held by syz-executor.4/4674: #0: ffff0000cca02cd8 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline] #0: ffff0000cca02cd8 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x208/0x424 block/fops.c:603 1 lock held by syz-executor.2/4735: #0: ffff0000cca02cd8 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline] #0: ffff0000cca02cd8 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x208/0x424 block/fops.c:603 1 lock held by syz-executor.1/4739: #0: ffff0000cca02cd8 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline] #0: ffff0000cca02cd8 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x208/0x424 block/fops.c:603 1 lock held by syz-executor.3/4755: #0: ffff0000cca02cd8 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline] #0: ffff0000cca02cd8 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x208/0x424 block/fops.c:603 1 lock held by syz-executor.0/4762: #0: ffff0000cca02cd8 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline] #0: ffff0000cca02cd8 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x208/0x424 block/fops.c:603 1 lock held by syz-executor.4/4764: #0: ffff0000cca02cd8 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline] #0: ffff0000cca02cd8 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x208/0x424 block/fops.c:603 1 lock held by syz-executor.2/4822: #0: ffff0000cca02cd8 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline] #0: ffff0000cca02cd8 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x208/0x424 block/fops.c:603 1 lock held by syz-executor.1/4828: #0: ffff0000cca02cd8 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline] #0: ffff0000cca02cd8 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x208/0x424 block/fops.c:603 1 lock held by syz-executor.3/4840: #0: ffff0000cca02cd8 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline] #0: ffff0000cca02cd8 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x208/0x424 block/fops.c:603 1 lock held by syz-executor.0/4850: #0: ffff0000cca02cd8 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline] #0: ffff0000cca02cd8 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x208/0x424 block/fops.c:603 1 lock held by syz-executor.4/4852: #0: ffff0000cca02cd8 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline] #0: ffff0000cca02cd8 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x208/0x424 block/fops.c:603 1 lock held by syz-executor.1/4894: #0: ffff0000cca02cd8 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline] #0: ffff0000cca02cd8 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x208/0x424 block/fops.c:603 1 lock held by syz-executor.2/4898: #0: ffff0000cca02cd8 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline] #0: ffff0000cca02cd8 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x208/0x424 block/fops.c:603 1 lock held by syz-executor.3/4927: #0: ffff0000cca02cd8 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline] #0: ffff0000cca02cd8 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x208/0x424 block/fops.c:603 1 lock held by syz-executor.0/4938: #0: ffff0000cca02cd8 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline] #0: ffff0000cca02cd8 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x208/0x424 block/fops.c:603 1 lock held by syz-executor.4/4940: #0: ffff0000cca02cd8 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline] #0: ffff0000cca02cd8 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x208/0x424 block/fops.c:603 =============================================