INFO: task syz-executor.1:24509 blocked for more than 430 seconds. Not tainted 6.6.0-rc1-syzkaller-00240-gf0b0d403eabb #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.1 state:D stack:0 pid:24509 ppid:3114 flags:0x0000000d Call trace: __switch_to+0x1d0/0x348 arch/arm64/kernel/process.c:556 context_switch kernel/sched/core.c:5382 [inline] __schedule+0xac4/0x2ae4 kernel/sched/core.c:6695 schedule+0xc8/0x19c kernel/sched/core.c:6771 io_schedule+0xac/0x114 kernel/sched/core.c:9026 folio_wait_bit_common+0x2a8/0x6d8 mm/filemap.c:1301 __folio_lock+0x1c/0x28 mm/filemap.c:1629 folio_lock include/linux/pagemap.h:1042 [inline] clean_bdev_aliases+0x40c/0x530 fs/buffer.c:1725 clean_bdev_bh_alias include/linux/buffer_head.h:219 [inline] __block_write_begin_int+0x404/0xf38 fs/buffer.c:2115 iomap_write_begin+0x3a8/0x1108 fs/iomap/buffered-io.c:772 iomap_write_iter fs/iomap/buffered-io.c:907 [inline] iomap_file_buffered_write+0x2b4/0x6a4 fs/iomap/buffered-io.c:968 blkdev_buffered_write block/fops.c:634 [inline] blkdev_write_iter+0x34c/0x91c block/fops.c:684 call_write_iter include/linux/fs.h:1985 [inline] do_iter_readv_writev+0x194/0x298 fs/read_write.c:735 do_iter_write+0x120/0x5e0 fs/read_write.c:860 vfs_iter_write+0x58/0xa0 fs/read_write.c:901 iter_file_splice_write+0x47c/0x8ec fs/splice.c:736 do_splice_from fs/splice.c:933 [inline] direct_splice_actor+0xd8/0x198 fs/splice.c:1142 splice_direct_to_actor+0x278/0x7f8 fs/splice.c:1088 do_splice_direct+0x128/0x204 fs/splice.c:1194 do_sendfile+0x7a8/0xc68 fs/read_write.c:1254 __do_sys_sendfile64 fs/read_write.c:1322 [inline] __se_sys_sendfile64 fs/read_write.c:1308 [inline] __arm64_sys_sendfile64+0x25c/0x304 fs/read_write.c:1308 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline] invoke_syscall+0x6c/0x258 arch/arm64/kernel/syscall.c:51 el0_svc_common.constprop.0+0xac/0x230 arch/arm64/kernel/syscall.c:136 do_el0_svc+0x40/0x58 arch/arm64/kernel/syscall.c:155 el0_svc+0x58/0x140 arch/arm64/kernel/entry-common.c:678 el0t_64_sync_handler+0x100/0x12c arch/arm64/kernel/entry-common.c:696 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591 Showing all locks held in the system: 2 locks held by kthreadd/2: #0: ffff00006a902758 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested kernel/sched/core.c:558 [inline] #0: ffff00006a902758 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock kernel/sched/sched.h:1372 [inline] #0: ffff00006a902758 (&rq->__lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1681 [inline] #0: ffff00006a902758 (&rq->__lock){-.-.}-{2:2}, at: __schedule+0x268/0x2ae4 kernel/sched/core.c:6612 #1: ffff00006a8efe88 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x254/0x748 kernel/sched/psi.c:999 1 lock held by khungtaskd/29: #0: ffff8000865f6100 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x44/0x2d4 kernel/locking/lockdep.c:6607 2 locks held by getty/3040: #0: ffff000012cb20a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340 #1: ffff80008939b2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x968/0xf00 drivers/tty/n_tty.c:2206 2 locks held by kworker/u4:26/15336: 3 locks held by kworker/0:2/18808: #0: ffff00006a8e1758 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested kernel/sched/core.c:558 [inline] #0: ffff00006a8e1758 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock kernel/sched/sched.h:1372 [inline] #0: ffff00006a8e1758 (&rq->__lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1681 [inline] #0: ffff00006a8e1758 (&rq->__lock){-.-.}-{2:2}, at: __schedule+0x268/0x2ae4 kernel/sched/core.c:6612 #1: ffff00006a8cee88 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x254/0x748 kernel/sched/psi.c:999 #2: ffff00006a8cfd58 (&base->lock){-.-.}-{2:2}, at: lock_timer_base+0xbc/0x198 kernel/time/timer.c:999 no locks held by kworker/u4:7/23608. 2 locks held by kworker/u4:8/23609: 2 locks held by kworker/u4:10/23614: 2 locks held by kworker/u4:19/24041: #0: ffff000009821938 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x594/0x143c kernel/workqueue.c:2605 #1: ffff80008cde7cd0 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: process_one_work+0x594/0x143c kernel/workqueue.c:2605 2 locks held by kworker/u4:0/24687: 3 locks held by modprobe/24890: 2 locks held by syz-executor.1/24892: 2 locks held by kworker/u4:17/24893: 2 locks held by kworker/u4:22/24896: =============================================