RE: [Xen-users] Xen on IBM BladeServers

["Andrew D. Ball" <aball@xxxxxxxxxx>]

Are you running X?  I've found odd behavior with X Window running on
vanilla Linux 2.6.12.6 kernels on HS20 8843-25U blades.  I've been
asking our Network OS support team about this, it looks like both RHEL
and SLES have patches to fix this, but I'm not sure if the plain Linux
kernel does.

If the freeze does indeed happen after X loads, try booting to runlevel
3 instead [can be done by appending '3' to the kernel parameters, as
this will be fed to init] as a temporary workaround.  I'll find out more
about why recent vanilla (and Xen-enabled) Linux kernels have issues
with the ATI chipset on the blade's motherboard.

Thanks.
Andrew

On Fri, 2005-12-16 at 13:51 +0800, Colin Coe wrote:
> I've probably not provided enough info.  The hang happens will Linux is
> booting not Xen.  The model is HS20 (884325M).  These are dual Xeon, EM64T.
> 
> Thanks
> CC
> 
> -----Original Message-----
> From: Ian Pratt [mailto:m+Ian.Pratt@xxxxxxxxxxxx]
> Sent: Friday, 16 December 2005 12:21 PM
> To: Colin Coe; Todd Foster; xen-users@xxxxxxxxxxxxxxxxxxx
> Cc: ian.pratt@xxxxxxxxxxxx
> Subject: RE: [Xen-users] Xen on IBM BladeServers
> 
> 
> > My test node hangs on boot up after install the Xen 3 
> > binaries (not the RPMs).  Screen shot attached.  These are 
> > the EM64T based blades.
> 
> Which particular model is this? I'm sure some of the IBM folks on the
> list will be keen to investigate.
> 
> You might like to try adding acpi=off to the xen command line (as
> opposed to the linux one), or try maxcpus=1 on the linux command line.
> Also, you might want to check for a bios update.
> 
> Ian
>  
> > /etc/grub.conf
> > # grub.conf generated by anaconda
> > <snip>
> > #boot=/dev/sda
> > default=0
> > timeout=5
> > splashimage=(hd0,0)/grub/splash.xpm.gz
> > hiddenmenu
> > <snip>
> > title Xen 3.0 / XenLinux 2.6
> >        kernel /xen-3.0.gz console=vga
> >        module /vmlinuz-2.6-xen root=/dev/rootvg/root ro console=tty0
> >        module /initrd-2.6-xen.img
> > 
> > Thanks
> > 
> > CC
> > 
> > -----Original Message-----
> > From: Todd Foster [mailto:toddf@xxxxxxxxxxxxxxxxx]
> > Sent: Thursday, 15 December 2005 3:39 PM
> > To: Colin Coe; xen-users@xxxxxxxxxxxxxxxxxxx
> > Subject: RE: [Xen-users] Xen on IBM BladeServers
> > 
> > 
> > Absolutely.......What do you want to know about my setup?  I 
> > do have X running as well on the guest system.
> >  
> > 
> > Cheers,
> > 
> > 
> > Todd H Foster, CEO
> > 
> > Technetium, Inc. 
> > The Technical Element.
> > One Ten Pine Avenue Suite 1080
> > Long Beach, CA 90802
> > ---------------------------- 
> > 
> > 
> > Phone: (310) 508-6476
> > Fax: (562) 427-4707
> > Email: toddf@xxxxxxxxxxxxxxxxx
> > Web: www.technetiuminc.com 
> > 
> > 
> > 
> > -----Original Message-----
> > From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx
> > [mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Colin Coe
> > Sent: Wednesday, December 14, 2005 10:31 PM
> > To: 'xen-users@xxxxxxxxxxxxxxxxxxx'
> > Subject: [Xen-users] Xen on IBM BladeServers
> > 
> > 
> > Hi all
> > 
> > I'm a Xen newbie...  I'm using RHEL4 Update 2 on IBM 
> > BladeServers.  Has
> > anyone got Xen 3 working on these?  If so, how did you manage it?
> > 
> > TIA
> > 
> > 
> > Colin Coe
> > 
> > 
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