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From: Keir Fraser <keir@xen.org>
To: Jan Beulich <JBeulich@suse.com>, "Liu, Jinsong" <jinsong.liu@intel.com>
Cc: xen-devel <xen-devel@lists.xen.org>,
	Ian Jackson <Ian.Jackson@eu.citrix.com>,
	Stefano Stabellini <Stefano.Stabellini@eu.citrix.com>
Subject: Re: [xen-unstable bisection] complete test-amd64-i386-qemuu-rhel6hvm-amd
Date: Wed, 17 Oct 2012 10:04:05 +0100	[thread overview]
Message-ID: <CCA43315.4FD05%keir@xen.org> (raw)
In-Reply-To: <507E7D5C02000078000A1DE6@nat28.tlf.novell.com>

On 17/10/2012 08:41, "Jan Beulich" <JBeulich@suse.com> wrote:

> So I just now realized that a similar change was already done
> by 23736:31683aa4bfb3 and then reverted by
> 23760:ae10d7804168. Nothing was done subsequently to
> address the actual problem(s). It is quite obvious that the more
> relaxed check uncovers other bugs in the ERST code, yet looking
> at the Linux history of the corresponding file doesn't reveal any
> fix the lack of which would explain an outright hang (rather than
> a crash, as I would expect to be the result of e.g. the missing
> ioremap()-s added by 0bbba38a61283a55f2061ab3e0910c572d19f462.
> 
> Most of the other changes are cosmetic or pstore related, so I
> wonder whether instead of reverting again we should try pulling
> in this one extra fix.
> 
> If reverting is preferred (or turns out necessary if that second
> fix doesn't help), we should settle on the disposition of the whole
> APEI/ERST code, as my conclusion is that it is pretty much
> unmaintained since its original contribution over two years ago.

Perhaps we reverted before because we decided that this advertised table
size was a bug, and handling it just opened us to other bugs lurking in the
table?

 -- Keir

> Jan
> 

  parent reply	other threads:[~2012-10-17  9:04 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-10-17  5:24 [xen-unstable bisection] complete test-amd64-i386-qemuu-rhel6hvm-amd xen.org
2012-10-17  7:41 ` Jan Beulich
2012-10-17  9:02   ` Ian Campbell
2012-10-17  9:18     ` Jan Beulich
2012-10-17 13:04       ` Liu, Jinsong
2012-10-17  9:04   ` Keir Fraser [this message]
2012-10-17  9:21     ` Jan Beulich
2012-10-17  9:33       ` Keir Fraser

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