> Maybe someone can verify whether the patch contributed by Neil Brown > [ http://www.ktrap.org/mailarchive/git-commits-head/2009/10/31/11499 ] > fixes this? Should be available since 2.6.32.
Thanks for the suggestion, but it's not clear to me from the commit message and the content that that's addressing a deadlock rather than a performance problem. When my system is in the deadlocked state, there seems to be no problem finding CPUs to run runnable processes on - just a shortage of runnable processes that can make progress, because everything is stuck in disk wait. So additional reschedules wouldn't seem likely to help. chiark has a total of 8 cores and only two md devices, only one of which is a mirror (the other is stripe) so I don't think a single management thread could cause total cpu starvation anyway. Ian. -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
