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From: Mike Christie <michaelc@cs.wisc.edu>
To: device-mapper development <dm-devel@redhat.com>
Subject: Re: SCSI Sense patch
Date: Tue, 05 Sep 2006 12:39:26 -0500	[thread overview]
Message-ID: <44FDB64E.7020301@cs.wisc.edu> (raw)
In-Reply-To: <BAY114-F483ED5326C22601EF09069D300@phx.gbl>

bart brooks wrote:
> Hi Alasdair,
> 
> I take it you are referring to the addition of “bi_error” to the bio
> data structure.
> Any idea when an alternate solution will be available, is it still in
> the discussion phase ?
> 

I did two possible alternatives when trying to think of a way around
KABI. You can find them here

http://www.cs.wisc.edu/~michaelc/block/dm/rhel4/

I am not pushing either approach right now since one is a crazy ugly
hack (u3-bio-sense/) that I do not want to maintain or try to completely
test for something like RHEL. The other possibility (u3-blkerr) is nicer
but needs to be fixed up for some cases and needs lots of testing. The
latter approach is also a little hacky since I had to work around the
KABI restrictions but I do not think it is as evil as the u3-bio-sense
approach.

  reply	other threads:[~2006-09-05 17:39 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-08-28 18:53 failover speed seth vidal
2006-08-29 16:57 ` seth vidal
2006-09-05 13:59 ` SCSI Sense patch bart brooks
2006-09-05 15:10   ` Alasdair G Kergon
2006-09-05 15:56     ` bart brooks
2006-09-05 17:39       ` Mike Christie [this message]
2006-09-05 21:12         ` bart brooks

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