INFO: task kworker/1:2H:10020 blocked for more than 143 seconds. Not tainted 6.10.0-rc3-syzkaller-00044-g2ccbdf43d5e7 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:2H state:D stack:25272 pid:10020 tgid:10020 ppid:2 flags:0x00004000 Workqueue: xfs-log/loop1 xlog_ioend_work Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0x1796/0x49d0 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6837 schedule_timeout+0xb0/0x310 kernel/time/timer.c:2557 ___down_common kernel/locking/semaphore.c:225 [inline] __down_common+0x343/0x7f0 kernel/locking/semaphore.c:246 down+0x84/0xc0 kernel/locking/semaphore.c:63 xfs_buf_lock+0x164/0x510 fs/xfs/xfs_buf.c:1196 xfs_buf_item_unpin+0x1dd/0x710 fs/xfs/xfs_buf_item.c:581 xfs_trans_committed_bulk+0x675/0x850 xlog_cil_committed+0x1d0/0x560 fs/xfs/xfs_log_cil.c:736 xlog_cil_process_committed+0x15c/0x1b0 fs/xfs/xfs_log_cil.c:768 xlog_state_shutdown_callbacks+0x2ba/0x3b0 fs/xfs/xfs_log.c:538 xlog_force_shutdown+0x32c/0x390 fs/xfs/xfs_log.c:3801 xlog_ioend_work+0xad/0x100 fs/xfs/xfs_log.c:1395 process_one_work kernel/workqueue.c:3231 [inline] process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3312 worker_thread+0x86d/0xd70 kernel/workqueue.c:3393 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 INFO: task syz-executor.1:10619 blocked for more than 143 seconds. Not tainted 6.10.0-rc3-syzkaller-00044-g2ccbdf43d5e7 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.1 state:D stack:25560 pid:10619 tgid:10551 ppid:10179 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0x1796/0x49d0 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6837 xlog_wait fs/xfs/xfs_log_priv.h:619 [inline] xlog_wait_on_iclog+0x501/0x770 fs/xfs/xfs_log.c:892 xlog_force_lsn+0x523/0x9e0 fs/xfs/xfs_log.c:3335 xfs_log_force_seq+0x1da/0x450 fs/xfs/xfs_log.c:3372 __xfs_trans_commit+0xb98/0x1290 fs/xfs/xfs_trans.c:1029 xfs_sync_sb_buf+0x2bb/0x350 fs/xfs/libxfs/xfs_sb.c:1177 xfs_ioc_setlabel fs/xfs/xfs_ioctl.c:1203 [inline] xfs_file_ioctl+0x165b/0x19e0 fs/xfs/xfs_ioctl.c:1358 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:893 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f132887cea9 RSP: 002b:00007f13296460c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f13289b4050 RCX: 00007f132887cea9 RDX: 0000000020000080 RSI: 0000000041009432 RDI: 0000000000000006 RBP: 00007f13288ebff4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007f13289b4050 R15: 00007ffdd7ec7468 Showing all locks held in the system: 1 lock held by khungtaskd/30: #0: ffffffff8e333fa0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline] #0: ffffffff8e333fa0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline] #0: ffffffff8e333fa0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6614 2 locks held by getty/4841: #0: ffff88802b4d20a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243 #1: ffffc90002f0e2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 drivers/tty/n_tty.c:2201 1 lock held by syz-fuzzer/5090: 1 lock held by syz-executor.0/5108: 2 locks held by kworker/0:6/5166: #0: ffff888015080948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3206 [inline] #0: ffff888015080948 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312 #1: ffffc90004387d00 (free_ipc_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline] #1: ffffc90004387d00 (free_ipc_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312 3 locks held by syz-executor.4/9146: #0: ffff88807d174d88 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close net/bluetooth/hci_core.c:554 [inline] #0: ffff88807d174d88 (&hdev->req_lock){+.+.}-{3:3}, at: hci_unregister_dev+0x1d3/0x4e0 net/bluetooth/hci_core.c:2760 #1: ffff88807d174078 (&hdev->lock){+.+.}-{3:3}, at: hci_dev_close_sync+0x494/0xf60 net/bluetooth/hci_sync.c:5050 #2: ffffffff8e339378 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:323 [inline] #2: ffffffff8e339378 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x451/0x830 kernel/rcu/tree_exp.h:939 2 locks held by kworker/1:2H/10020: #0: ffff888059ecc548 ((wq_completion