On Wed, Mar 14, 2012 at 07:17:09PM +0800, Liu Bo wrote: > This deadlock comes from xfstests 251. > > We'll hold the chunk_mutex throughout the whole of a chunk allocation. > But if we find that we've used up system chunk space, we need to allocate a > new system chunk, but this will lead to a recursion of chunk allocation and end > up with a deadlock on chunk_mutex. > So instead we need to allocate the system chunk first if we find we're in ENOSPC. I'm using this patch without problem since you published it (compressed /home with hourly snapshot delete/creation). Thanks a lot for your work, Andrea -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
