Date: Sat, 13 Jan 2007 21:02:50 -0600 From: CyberLeo Kitsana <cyberleo@cyberleo.net> To: "R. B. Riddick" <arne_woerner@yahoo.com> Cc: FreeBSD Geom <freebsd-geom@freebsd.org> Subject: Re: geom_raid5 livelock? Message-ID: <45A99D5A.3060400@cyberleo.net> In-Reply-To: <20070114012620.95885.qmail@web30305.mail.mud.yahoo.com> References: <20070114012620.95885.qmail@web30305.mail.mud.yahoo.com>
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R. B. Riddick wrote:
> Thank you for the tests... :-)
You're welcome. Always glad to help squash bugs.
> 1. (hard way)
> Look at the data (16KB) at that offset of all disks and see, where exactly the
> parity mismatches ("dd if=/dev/adXs2 bs=16k iseek=16140017
> of=/tmp/adXs2.test..."; then we could XOR them all together and see, where we
> have non-zero bits)
I XORed together all four 16k blocks captured during a livelock, and it
came out to a file full of nul bytes. Given what you'd said, I believe
that means the parity is correct for that stripe.
--
Fuzzy love,
-CyberLeo
Technical Administrator
CyberLeo.Net Webhosting
http://www.CyberLeo.Net
<CyberLeo@CyberLeo.Net>
Furry Peace! - http://www.fur.com/peace/
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