On Fri, 22 Jun 2012 13:19:53 +0100 Jose Manuel dos Santos Calhariz <jose.spam@xxxxxxxxxxx> wrote: > > In another day during the periodic mdadm RAID check: > - the linux kernel gave a kernel BUG, > - tried to kick out a failed disk and > - stopped accepting I/O to the affected raid. > > The affected programs were in state D. The only way to recover was to > do a reboot. After reboot the problematic disk was replaced. > > I reported the bug to Debian and is there all the information about it: > > http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=675969 > > I was asked to report the BUG here in case someone knows what happened. > > Here is a summary of the more relevant information: > > This machine have 2 x RAID6 with 6 disks each, for a total of 12 disks. > > I have 5 systems with a similar setup and only one failed, maybe > because of the failing disk. I will use one of the systems to try to > reproduce the bug, before triyng a new kernel. > > > The proprietary module is the openafs filesystem v1.6.1 backported > from Debian testing. > > The kernel bug is: > > > build/source_i386_none/drivers/md/raid5.c:2764! This bug was fixed in 2.6.32.49 and 3.2 http://git.kernel.org/?p=linux/kernel/git/stable/linux-stable.git;a=commitdiff;h=61d433c479a6ccfed6a7e73e6111ca8fa0348c63 http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commitdiff;h=9a3f530f39f4490eaa18b02719fb74ce5f4d2d86 NeilBrown
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