From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Brian Hays" Subject: Re: DomU not rebooting in 3.0.1 Date: Mon, 27 Feb 2006 14:10:24 -0500 Message-ID: References: <20060227153317.GL27353@leeni.uk.xensource.com> <20060227190613.GA24879@dargo.dague.pvt> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============2050587350==" Return-path: In-Reply-To: <20060227190613.GA24879@dargo.dague.pvt> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Mime-version: 1.0 Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Ewan Mellor , Brian Hays , xen-devel@lists.xensource.com List-Id: xen-devel@lists.xenproject.org --===============2050587350== Content-Type: multipart/alternative; boundary="----=_Part_7901_23800544.1141067424334" ------=_Part_7901_23800544.1141067424334 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline My domU is on the same physical CPU as dom0 but still doesn't come back fro= m reboots. Brian On 2/27/06, Sean Dague wrote: > > On Mon, Feb 27, 2006 at 03:33:17PM +0000, Ewan Mellor wrote: > > On Sat, Feb 25, 2006 at 11:31:57AM -0500, Brian Hays wrote: > > > > > In 3.0.1 it appears that reboots from within a domU result in the dom= U > > > shutting down but not coming back up. > > > > > > /var/log/xen-hotplug.log reports something similar to "xenstore-list: > > > could not read path backend/vbd/40" > > > > > > Attempts to manually start the domU up again via "xm create" fail > until > > > first running "xenstore-rm backend/vbd/40" > > > > > > This has happened on several occasions within different domU's on > > > different machines. Is there a known workaround... Is this already > fixed > > > in unstable? > > > > This is being tracked as bug #514. I think I have a fix, which should > be in > > today, all being well. > > Ewan, I didn't notice 514, but I submitted a related bug > http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=3D549. It appears > that > the big deciding factor on whether or not I see the race is is the DomU > that > is rebooting running on a fully independant CPU from Dom0. If it is, it > breaks every time, if it isn't (i.e. it is on the *same* phys CPU as Dom0= ) > it works every time. > > -Sean > > -- > Sean Dague > IBM Linux Technology Center email: japh@us.ibm.com > Open Hypervisor Team alt: sldague@us.ibm.com > > > ------=_Part_7901_23800544.1141067424334 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline My domU is on the same physical CPU as dom0 but still doesn't come back fro= m reboots.

Brian

On 2/27/06,= Sean Dague < japh@us.ibm.com> wrote:
On Mon, Feb 27, 2006 at 03:33:17PM +0000, Ewan Mellor w= rote:
> On Sat, Feb 25, 2006 at 11:31:57AM -0500, Brian Hays wrote:
>= ;
> > In 3.0.1 it appears that reboots from within a domU result i= n the domU
> > shutting down but not coming back up.
> >
> > /var/log/xen-hotplug.log reports something similar to "x= enstore-list:
> > could not read path backend/vbd/40"
>= >
> > Attempts to manually start the domU up again via "x= m create" fail until
> > first running "xenstore-rm backend/vbd/40"
> = >
> > This has happened on several occasions within different d= omU's on
> > different machines. Is there a known workaround... Is= this already fixed
> > in unstable?
>
> This is being tracked as bug #51= 4.  I think I have a fix, which should be in
> today, all b= eing well.

Ewan, I didn't notice 514, but I submitted a related bug<= br> http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=3D549. &nbs= p;It appears that
the big deciding factor on whether or not I see the ra= ce is is the DomU that
is rebooting running on a fully independant CPU f= rom Dom0.  If it is, it
breaks every time, if it isn't (i.e. it is on the *same* phys CPU as Do= m0)
it works every time.

      &nbs= p; -Sean

--
Sean Dague
IBM Linux Technology Center &= nbsp;           &nbs= p;       email: japh@us.ibm.com
Open Hypervisor Team     &n= bsp;            = ;         alt: sldague@us.ibm.com



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