INFO: task syz-executor.3:21688 blocked for more than 143 seconds. Not tainted 5.15.101-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.3 state:D stack: 0 pid:21688 ppid: 21672 flags:0x00000009 Call trace: __switch_to+0x308/0x5e8 arch/arm64/kernel/process.c:518 context_switch kernel/sched/core.c:5023 [inline] __schedule+0xfcc/0x1f1c kernel/sched/core.c:6369 schedule+0x11c/0x1c8 kernel/sched/core.c:6452 rwsem_down_write_slowpath+0xca8/0x1340 kernel/locking/rwsem.c:1157 __down_write_common kernel/locking/rwsem.c:1284 [inline] __down_write kernel/locking/rwsem.c:1293 [inline] down_write+0x25c/0x260 kernel/locking/rwsem.c:1542 filemap_invalidate_lock include/linux/fs.h:832 [inline] blkdev_fallocate+0x208/0x378 block/fops.c:600 vfs_fallocate+0x478/0x5b4 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+0xc0/0x110 fs/open.c:337 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:596 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:614 el0t_64_sync+0x1a0/0x1a4 :584 Showing all locks held in the system: 1 lock held by khungtaskd/27: #0: ffff800014b925a0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:268 1 lock held by udevd/3584: 2 locks held by getty/3731: #0: ffff0000d35f9098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x40/0x50 drivers/tty/tty_ldsem.c:340 #1: ffff800018e902e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x414/0x1200 drivers/tty/n_tty.c:2147 3 locks held by syz-executor.5/4097: 3 locks held by kworker/u4:12/8860: 1 lock held by syz-executor.3/21643: 1 lock held by syz-executor.3/21688: #0: ffff0000c0566790 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline] #0: ffff0000c0566790 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x208/0x378 block/fops.c:600 1 lock held by syz-executor.3/21730: #0: ffff0000c0566790 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline] #0: ffff0000c0566790 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x208/0x378 block/fops.c:600 2 locks held by syz-executor.3/21769: 1 lock held by syz-executor.0/23951: #0: ffff800014b96a30 (rcu_state.barrier_mutex){+.+.}-{3:3}, at: rcu_barrier+0x54/0x4b0 kernel/rcu/tree.c:3994 =============================================