From: Gianluca Guida <gianluca.guida@eu.citrix.com>
To: Keir Fraser <keir.fraser@eu.citrix.com>
Cc: xen-devel@lists.xensource.com
Subject: Re: Re: issues with movnti emulation
Date: Tue, 25 Nov 2008 14:01:28 +0000 [thread overview]
Message-ID: <492C0538.9030702@eu.citrix.com> (raw)
In-Reply-To: <C54B4B1D.1F707%keir.fraser@eu.citrix.com>
Keir Fraser wrote:
> I think the issue is that I did a bad backport to 3.3. The 'case 0xc3'
> should be under twobyte_special_insn rather than twobyte_insn, right? The
> two separate paths got merged into one in xen-unstable.
This seems actually to be the case. The actual move from src.val to
dst.val never happened with the current patch, and this made movnti to
write in memory the original dst.val value, leading to memory corruption.
By moving the switch case into twobyte_insn the problem goes away.
Gianluca
prev parent reply other threads:[~2008-11-25 14:01 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-11-20 16:38 issues with movnti emulation Jan Beulich
2008-11-20 17:13 ` Keir Fraser
2008-11-20 17:16 ` Tim Deegan
2008-11-20 17:43 ` Keir Fraser
2008-11-21 16:01 ` Tim Deegan
2008-11-24 16:18 ` Gianluca Guida
2008-11-24 15:34 ` Jan Beulich
2008-11-20 18:42 ` Kevin Wolf
2008-11-21 11:04 ` Jan Beulich
2008-11-21 11:19 ` Keir Fraser
2008-11-25 14:01 ` Gianluca Guida [this message]
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