INFO: task syz.1.475:5385 blocked for more than 430 seconds. Not tainted 6.11.0-rc2-syzkaller-g1ff95eb2bebd #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.1.475 state:D stack:0 pid:5385 tgid:5384 ppid:3177 flags:0x00000004 Call Trace: [] context_switch kernel/sched/core.c:5188 [inline] [] __schedule+0xd5c/0x3288 kernel/sched/core.c:6529 [] __schedule_loop kernel/sched/core.c:6606 [inline] [] schedule+0xc4/0x324 kernel/sched/core.c:6621 [] schedule_preempt_disabled+0x16/0x28 kernel/sched/core.c:6678 [] rwsem_down_read_slowpath+0x564/0x918 kernel/locking/rwsem.c:1086 [] __down_read_common kernel/locking/rwsem.c:1250 [inline] [] __down_read kernel/locking/rwsem.c:1263 [inline] [] down_read+0xe4/0x460 kernel/locking/rwsem.c:1528 [] filemap_invalidate_lock_shared include/linux/fs.h:854 [inline] [] page_cache_ra_unbounded+0xe8/0x4e6 mm/readahead.c:225 [] do_page_cache_ra+0xf0/0x134 mm/readahead.c:303 [] page_cache_ra_order+0xe8/0x17a mm/readahead.c:488 [] page_cache_sync_ra+0x462/0x9e0 mm/readahead.c:576 [] page_cache_sync_readahead include/linux/pagemap.h:1296 [inline] [] filemap_get_pages+0xa6a/0x1628 mm/filemap.c:2529 [] filemap_read+0x34e/0xc30 mm/filemap.c:2625 [] blkdev_read_iter+0x164/0x416 block/fops.c:764 [] aio_read+0x2a0/0x3fe fs/aio.c:1602 [] __io_submit_one fs/aio.c:2003 [inline] [] io_submit_one+0x68a/0x19e8 fs/aio.c:2052 [] __do_sys_io_submit fs/aio.c:2111 [inline] [] __se_sys_io_submit fs/aio.c:2081 [inline] [] __riscv_sys_io_submit+0x202/0x376 fs/aio.c:2081 [] syscall_handler+0x94/0x118 arch/riscv/include/asm/syscall.h:90 [] do_trap_ecall_u+0x1aa/0x216 arch/riscv/kernel/traps.c:331 [] handle_exception+0xca/0xd6 arch/riscv/kernel/entry.S:110 Showing all locks held in the system: 1 lock held by khungtaskd/36: #0: ffffffff87dc59c0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x68/0x2d6 kernel/locking/lockdep.c:6616 1 lock held by syslogd/2989: 2 locks held by getty/3143: #0: ff6000001b2090a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3a/0x46 drivers/tty/tty_ldsem.c:340 #1: ff20000000e032f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xd6a/0x1288 drivers/tty/n_tty.c:2211 1 lock held by sshd/3169: 2 locks held by syz-executor/3171: 1 lock held by syz.0.198/4362: 1 lock held by syz-executor/4376: 1 lock held by syz.1.475/5385: #0: ff600000153dce48 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:854 [inline] #0: ff600000153dce48 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0xe8/0x4e6 mm/readahead.c:225 2 locks held by kworker/1:6/5828: 5 locks held by syz.1.557/5965: =============================================