INFO: task kworker/u8:4:17086 blocked for more than 143 seconds. Not tainted 6.10.0-rc2-syzkaller-00366-g771ed66105de #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/u8:4 state:D stack:20592 pid:17086 tgid:17086 ppid:2 flags:0x00004000 Workqueue: writeback wb_workfn (flush-btrfs-198) 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 wait_extent_bit fs/btrfs/extent-io-tree.c:822 [inline] lock_extent+0x69e/0x860 fs/btrfs/extent-io-tree.c:1868 btrfs_invalidate_folio+0x272/0xad0 fs/btrfs/inode.c:8063 __extent_writepage fs/btrfs/extent_io.c:1484 [inline] extent_write_cache_pages fs/btrfs/extent_io.c:2173 [inline] btrfs_writepages+0x10b1/0x26f0 fs/btrfs/extent_io.c:2294 do_writepages+0x359/0x870 mm/page-writeback.c:2634 __writeback_single_inode+0x165/0x10b0 fs/fs-writeback.c:1651 writeback_sb_inodes+0x99c/0x1380 fs/fs-writeback.c:1947 wb_writeback+0x481/0xd40 fs/fs-writeback.c:2127 wb_do_writeback fs/fs-writeback.c:2274 [inline] wb_workfn+0x410/0x1090 fs/fs-writeback.c:2314 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.4:22696 blocked for more than 144 seconds. Not tainted 6.10.0-rc2-syzkaller-00366-g771ed66105de #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.4 state:D stack:20208 pid:22696 tgid:22695 ppid:16660 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 wb_wait_for_completion+0x166/0x290 fs/fs-writeback.c:216 __writeback_inodes_sb_nr+0x2d2/0x380 fs/fs-writeback.c:2706 try_to_writeback_inodes_sb+0x98/0xc0 fs/fs-writeback.c:2754 btrfs_start_delalloc_flush fs/btrfs/transaction.c:2106 [inline] btrfs_commit_transaction+0x896/0x3740 fs/btrfs/transaction.c:2291