Re: WinXP virtual crashes on 0.12.1.2 but not 0.12.1.1

From: Avi Kivity <avi@redhat.com>
To: Mark Cave-Ayland <mark.cave-ayland@siriusit.co.uk>
Cc: kvm@vger.kernel.org
Subject: Re: WinXP virtual crashes on 0.12.1.2 but not 0.12.1.1
Date: Mon, 25 Jan 2010 18:09:23 +0200	[thread overview]
Message-ID: <4B5DC233.2090407@redhat.com> (raw)
In-Reply-To: <4B5DC16F.9020909@siriusit.co.uk>

On 01/25/2010 06:06 PM, Mark Cave-Ayland wrote:
>
>> I'd like to find out why processor.sys fails, but the .1->.2 change 
>> isn't any help unfortunately.  It looks like here too there are two 
>> bugs involved: one in kvm which doesn't act like processor.sys 
>> expects it, and one in processor.sys which causes it to 
>> UNLOAD_ITSELF_WITHOUT_CANCELLING_PENDING_OPERATIONS.  You might try 
>> running with kvm trace enabled and look at msr and cpuid accesses 
>> just prior to the crash.
>
> I've had a quick look at this, and I can't work out how to enable kvm 
> trace in Kconfig. Is there any documentation on how to build with kvm 
> trace enabled for debugging?
>

CONFIG_FTRACE, CONFIG_TRACEPOINTS should be sufficient, I think.  2.6.32 
or later IIRC.

-- 
error compiling committee.c: too many arguments to function