From: Andi Kleen <andi@firstfloor.org>
To: Avi Kivity <avi@qumranet.com>
Cc: kvm-devel@lists.sourceforge.net,
Zdenek Kabelac <zdenek.kabelac@gmail.com>
Subject: Re: loop in copy_user_generic_string
Date: Tue, 04 Mar 2008 18:44:47 +0100 [thread overview]
Message-ID: <p73lk4y5qpc.fsf@bingen.suse.de> (raw)
In-Reply-To: <47CD73DF.6070502@qumranet.com> (Avi Kivity's message of "Tue\, 04 Mar 2008 18\:07\:59 +0200")
Avi Kivity <avi@qumranet.com> writes:
>
> Most likely movs emulation is broken for long counts. Please post a
> disassembly of copy_user_generic_string to make sure we're looking at
> the same code.
Be careful -- this code is patched at runtime and what you
see in the vmlinux is not necessarily the same that is executed
Incidentially that might cause problems.
-Andi
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next prev parent reply other threads:[~2008-03-04 17:44 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-03-04 16:02 loop in copy_user_generic_string Zdenek Kabelac
2008-03-04 16:07 ` Avi Kivity
2008-03-04 16:39 ` Zdenek Kabelac
2008-03-04 17:10 ` Avi Kivity
2008-03-04 17:44 ` Andi Kleen [this message]
2008-03-05 6:50 ` Avi Kivity
2008-03-05 8:52 ` Zdenek Kabelac
2008-03-07 19:32 ` Zdenek Kabelac
2008-03-09 22:13 ` Zdenek Kabelac
2008-03-11 22:19 ` Zdenek Kabelac
2008-03-12 12:50 ` Zdenek Kabelac
2008-03-12 14:40 ` Andi Kleen
2008-03-12 15:49 ` Zdenek Kabelac
2008-03-12 16:08 ` Zdenek Kabelac
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