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Re: [Xen-devel] (no subject)

From: Wei Huang [wei.huang2@xxxxxxx]
Sent: 05 April 2012 20:36
To: Francisco Rocha
Cc: Andrew Cooper; xen-devel@xxxxxxxxxxxxx
Subject: Re: [Xen-devel] (no subject)

On 04/05/2012 01:26 PM, Francisco Rocha wrote:
> Date: Thu, 5 Apr 2012 18:44:14 +0100
> From: Andrew Cooper<andrew.cooper3@xxxxxxxxxx>
> To:<xen-devel@xxxxxxxxxxxxx>
> Subject: Re: [Xen-devel] lastest xen unstable crash
> Message-ID:<4F7DD9EE.3080404@xxxxxxxxxx>
> Content-Type: text/plain; charset="ISO-8859-1"
> On 05/04/12 18:37, Francisco Rocha wrote:
>> Hi everyone,
>> I was trying to build a new machine but the system keeps rebooting.
>> I used the lasted unstable version from xen-unstable.hg.
>> I have tried with Fedora 16 (kernel 3.3.0-8) and Xubuntu 11.10 
>> (
>> The output to my serial console is attached.
>> Cheers,
>> Francisco
> What is your Linux command line? does it include "console=hvc0"?
> Perhaps some early_printk settings are required.
> Please include my email in your replies, thank you.
> Yes, it includes hvc0. I used your tutorial to setup the SOL.
> title        Xen 3.4.2 / pv_ops Linux dom0 with a serial console
> root         (hd0,0)
> kernel       /xen-3.4.gz dom0_mem=512M loglvl=all guest_loglvl=all 
> sync_console console_to_ring com1=115200,8n1,0xe000,0 console=com1
> module       /vmlinuz- ro root=/dev/vg00/lv01 console=hvc0 
> earlyprintk=xen nomodeset
> module       /initrd-
> Something like this, I am not at the machine anymore.
> Francisco
It looks like xsave/xrstore instructions (xsetbv instruction in
xstate_enable() function to be exact) related. You can try to disable
xsave to to see if this helps.


Sorry about the untitled message. 

Should I be the one disabling xsave or is that for Andrew to change something?
How can I do that?

Anyway, shouldn't Xen support it?

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