Hello guys, at work we've the openstack controller that since some months started to increase its load after some days of uptime. I've seen that the cause is that processes sometimes hangs and remain in D state. I've used some combination of ps args to get these outputs: http://pastebin.com/raw.php?i=LGGzGrWu http://pastie.org/pastes/6332964/text http://pastie.org/pastes/6332979/text The hdd is a soft-raid1 over 2 disks, which SMART values are fine. Commands like lsof, strace on a D process doesn't return. Any idea on what could be the cause? Thanks in advance -- Alessandro Tagliapietra alexfu.it (http://www.alexfu.it) -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack/attachments/20130225/e09b0525/attachment.html>