Bug 119245

Summary:	mdadm 2.2 segfaults when doing Assemble and Scan
Product:	Gentoo Linux	Reporter:	Nathan Blomquist <fleshy_ai>
Component:	[OLD] Core system	Assignee:	Gentoo's Team for Core System packages <base-system>
Status:	RESOLVED FIXED
Severity:	major	CC:	fleshy_ai
Priority:	High
Version:	2005.1
Hardware:	x86
OS:	Linux
URL:	http://www.mail-archive.com/linux-raid@vger.kernel.org/msg03242.html
Whiteboard:
Package list:		Runtime testing required:	---
Attachments:	mdadm-2.2-update-segv.patch

Description Nathan Blomquist 2006-01-16 16:55:23 UTC

I just recently upgraded from mdadm-2.1 to mdadm-2.2.

$server: mdadm -As /dev/md/0
segmentation fault

I found this when I rebooted me server to update my kernel. I was able to re-start my raid array via:

$server: mdadm -A /dev/md/0 /dev/hde1 /dev/hdg1
... 2 drives started ...

The problem is (I believe) with the scan option.  The init.d/mdadm uses the scan option and fails to activate the array.

Here is a discussion on this topic:
http://www.mail-archive.com/linux-raid@vger.kernel.org/msg03242.html

Reverting to mdadm 2.1 fixed the problem.

Comment 1 SpanKY gentoo-dev

2006-01-16 17:32:24 UTC

Created attachment 77308 [details, diff]
mdadm-2.2-update-segv.patch

try this patch and see if it fixes things for you

Comment 2 Nathan Blomquist 2006-01-16 18:10:05 UTC

(In reply to comment #1)
> Created an attachment (id=77308) [edit]
> mdadm-2.2-update-segv.patch
> 
> try this patch and see if it fixes things for you
> 

Sorry, I am relatively new to Gentoo and the portage system.  How would I apply this and make portage not replace it?

Comment 3 SpanKY gentoo-dev

2006-01-16 18:20:00 UTC

http://www.gentoo.org/doc/en/bugzilla-howto.xml#doc_chap8 should cover it

Comment 4 Nathan Blomquist 2006-01-16 18:57:42 UTC

(In reply to comment #3)
> http://www.gentoo.org/doc/en/bugzilla-howto.xml#doc_chap8 should cover it
> 

Thanks for your help.  That patch and the howto doc helped out great.  mdadm-2.2 built with the patch and I was able to execute an assemble/scan with it.  The array started and seems to be functioning fine.

Comment 5 SpanKY gentoo-dev

2006-01-16 19:40:28 UTC

added to cvs then as 2.2-r1, thanks for testing