Re: Attempt to change raid1 to raid0 results in division error in kernel
From: NeilBrown <hidden>
Date: 2013-05-24 11:27:03
On Thu, 23 May 2013 11:44:00 +0100 Robert Goliasz [off-list ref] wrote:
Hi, When attempting to change raid level from 1 to 0 (I was doing some testing trying to convert a raid1 array to a raid10 one), I got a division error. I'm on Debian sid, output of uname -a is: Linux gbl-macbook 3.2.0-4-amd64 #1 SMP Debian 3.2.35-2 x86_64 GNU/Linux
....
I attempted to run this: gbl-macbook# mdadm --grow /dev/md0 -l 0 zsh: segmentation fault mdadm --grow /dev/md0 -l 0 gbl-macbook# All my terminals have shown the following alert: Message from syslogd@gbl-macbook at May 23 11:26:11 ... kernel:[569106.802042] divide error: 0000 [#1] SMP
Fixed by commit 24b961f811a3e790a9b93604d25 which is in linux-3.4 http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=24b961f811a3e790a9b93604d25 NeilBrown
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