Re: kern/38856: Raidframe lockups

[Martin Husemann <martin%duskware.de@localhost>]

The following reply was made to PR kern/38856; it has been noted by GNATS.

From: Martin Husemann <martin%duskware.de@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: 
Subject: Re: kern/38856: Raidframe lockups
Date: Thu, 5 Jun 2008 09:40:52 +0200

 I had to do more parity rewrites on the other raid, and saw the lockup there
 again too. Maybe it is related to the amount of things written and since
 that raid-1 mostly was fine the parity rebuild rarely causes it, but since
 the other raid-1 has a complete fresh empty disk, the reconstruction has
 to write every single block and thus triggers it more easily?
 
 Christos says he can also reproduce it by writes from userland via the
 filesystem (on the raid), but I haven't been able to reproduce that.
 
 Reading from the raid in userland and writing to another (non-raid) disk
 works just fine (both via dd on the raw disk or via the filesystem on raid)
 
 Martin