On Sun, Jun 24, 2012 at 06:21:46PM +1000, NeilBrown wrote: > 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 The failing kernel had that fix all ready. The machine was running the kernel Debian 2.6.32-41squeeze2. Looking into the change log, this kernel have all the fixes until 2.6.32.51 plus other fixes. Jose Calhariz -- -- Ambição: um supremo desejo de ser vilipendiado por seus inimigos enquanto você está vivo e ser ridicularizado pelos amigos quando estiver morto --Ambrose Bierce
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