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Re: [Xen-devel] (no subject)
From: Wei Huang [wei.huang2@xxxxxxx]
Sent: 05 April 2012 21:27
To: Francisco Rocha
Cc: Andrew Cooper; xen-devel@xxxxxxxxxxxxx
Subject: Re: [Xen-devel] (no subject)
On 04/05/2012 03:17 PM, Francisco Rocha wrote:
> 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>
>> Subject: Re: [Xen-devel] lastest xen unstable crash
>> 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.
>> 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 220.127.116.11 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-18.104.22.168 ro root=/dev/vg00/lv01 console=hvc0
>> earlyprintk=xen nomodeset
>> module /initrd-22.214.171.124.img
>> Something like this, I am not at the machine anymore.
> 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?
Xen-unstable supports xsave/xrstor. You are using kernel 3.x.x, which
should support xsave/xrstor too. You can try to set xsave=0 in xen.gz
line of grub entry and boot again. Something like this:
kernel /boot/xen.gz blah blah xsave=0
module blah blah
Oh, i see, it's some new functionality. I will try it tomorrow and then let you
know how it goes.
Thank you for the help.
> Anyway, shouldn't Xen support it?
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