thanks for the ideas. i'm not seeing anything unusual other than mdadm pinning the CPU. which makes me think i'm probably seeing a combination of disc corruption when the box froze, and an mdadm bug. ick. would some developer somewhere actually want to see this? that's probably a long shot. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mailman.mn-linux.org/pipermail/tclug-list/attachments/20160714/71652391/attachment.html>