On Wed, Jan 08, 2014 at 07:39:26PM +0800, majianpeng wrote: > Because after kthread_create, the state of kthread is TASK_UNINTERRUPTIBLE. > If we don't wake up dc->writeback_thread, the thread will be hung-task. > For those reasons, we don't wake up writeback_thread: > A:only create backed device > B:create backed device and cache device, but don't write at once > C:write without writeback poliy > > So like the way of create gc_thread, after creating writeback_thread, i > set the state is TASK_INTERRUPTIBLE. I've seen this issue, but this isn't even where the sleep happens, there's no way this could be fixing it.. -- To unsubscribe from this list: send the line "unsubscribe linux-bcache" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
