Re: [Xen-API] xcp 1.1, linux 3.2 domu , and barrier issue

[Denis Cardon <denis.cardon@xxxxxxxxxxxxxxxxxxxxxx>]

Hi all,

> > We use barrier=0 for Ubuntu 12.04 for the last few weeks and haven't seen an 
> > issue with it. Other than the ability to reboot and have the system come up 
> > reliably.
> Yes, but obviously the issue should be fixed in XCP dom0 kernel instead, so you 
> don't need any workaround in the VMs.
thanks for your answer.

Cheers, keep on the good work!

Denis


> -- Pasi
>
> > -----Original Message-----
> > From: xen-api-bounces@xxxxxxxxxxxxx [mailto:xen-api-bounces@xxxxxxxxxxxxx] On 
> > Behalf Of Denis Cardon
> > Sent: Tuesday, May 29, 2012 4:52 AM
> > To: xen-api@xxxxxxxxxxxxx
> > Subject: [Xen-API] xcp 1.1, linux 3.2 domu , and barrier issue
> >
> > Hi everyone,
> >
> > Debian Wheezy PV guest (linux kernel 3.2) currently has some issues with 
> > barrier where the guest boots with read only disk.
> >
> > There has been some hint to disable barrier (adding barrier=0 in fstab), and it 
> > seems to indeed resolve the issue, cf links below.
> >
> > http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=637234
> > http://www.warden.pl/2012/04/10/debian-io-disk-problem-when-rebooting-on-xenserver-guest/
> >
> > I wanted to know if there are any side effect to that workaround or if it is 
> > safe?
> >
> > Cheers,
> >
> > Denis
> >
> >
> > --
> > Denis Cardon
> > Tranquil IT Systems
> > 44 bvd des pas enchantés
> > 44230 Saint Sébastien sur Loire
> > tel : +33 (0) 2.40.97.57.57
> > http://www.tranquil-it-systems.fr
> >
> >
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> >
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--
Denis Cardon
Tranquil IT Systems
44 bvd des pas enchantés
44230 Saint Sébastien sur Loire
tel : +33 (0) 2.40.97.57.57
http://www.tranquil-it-systems.fr


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