I don't know if it's the sending MUA or the list server, but the line wrapping makes this much harder to follow. I suggest putting it in a text file and attaching the text file. It's definitely not on the receiving side, I see it here also: https://www.spinics.net/lists/linux-btrfs/msg72872.html
Also anytime you get a hang, it's best to issue sysrq+w which dumps extra information into kernel messages that the developers sometimes find useful. Chris Murphy -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html