WARNING - OLD ARCHIVES

This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
   
 
 
Xen 
 
Home Products Support Community News
 
   
 

xen-devel

Re: [Xen-devel] Build vmlinuz-2.6.29-rc5-tip

On Wed, Feb 18, 2009 at 02:39:44PM -0800, Jeremy Fitzhardinge wrote:
> Pasi Kärkkäinen wrote:
> >On Tue, Feb 17, 2009 at 10:40:54AM -0800, Jeremy Fitzhardinge wrote:
> >  
> >>Pasi Kärkkäinen wrote:
> >>    
> >>>On Tue, Feb 17, 2009 at 05:31:57AM -0800, Boris Derzhavets wrote:
> >>> 
> >>>      
> >>>>Hardware config:-
> >>>>C2D E8400, 8 GB RAM, ASUS P5K Premium/WIFI (Intel P35+Intel ICH9R),
> >>>>2x250 SATA Seagate Barracuda (no RAID). Bios settings for ICH9R - AHCI.
> >>>>Details here:-
> >>>>http://bderzhavets.wordpress.com/2009/02/17/setup-xen-unstable-dom0-via-2629-rc5-pv_ops-enabled-kernel-on-intel-sataahci/
> >>>>
> >>>>   
> >>>>        
> >>>Thanks!
> >>>
> >>>So it seems you're running 64 bit dom0 OS/hypervisor.. 
> >>>
> >>>64 bit seems to work better atm than 32 bit.. 
> >>> 
> >>>      
> >>I tend to focus on 64-bit, and Ian Campbell has been looking at 32-bit.  
> >>In theory there shouldn't be all that much difference between them.  
> >>There have been a few issues, but they're sharing 90+% of the code.  (In 
> >>practice I'm interested in any bug reports, esp comparing 32 and 64-bit 
> >>behaviour).
> >>
> >>    
> >
> >I'm testing 32bit PAE dom0 on 32bit PAE hypervisor. 
> >
> >Today, with 2.6.29-rc5, I managed to boot my dom0 into login prompt! 
> >I haven't been able to get this working earlier.. congratulations!
> >
> >I had to use 'noapic' dom0 kernel parameter though.. without 'noapic' I'm 
> >seeing
> >the same IRQ problems with ata_piix than earlier.
> >  
> 
> Hm, interesting.  One change I made in the last few days was making gsis 
> map 1:1 with irqs, like the native kernel.  I wonder if that helps in 
> your case.  That said, I'm not quite sure how its working with noapic; I 
> would have thought that it wouldn't go through the Xen-hooked paths that 
> way...
> 
> Oh, you're using ahci, not piix - and that works with noapic.  Hm, I 
> should try that.
> 

I have ahci controller onboard, but I'm not using it atm. 

The (only) disk I have is connected to ata_piix controller..


> Can you start xend and a domain?
> 

I'll try that today!

> >My dom0 kernel config:
> >http://pasik.reaktio.net/xen/pv_ops-dom0-debug/config-2.6.29-rc5-tip-dom0
> >
> >My grub.conf:
> >http://pasik.reaktio.net/xen/pv_ops-dom0-debug/grub.conf
> >
> >Working dom0 bootlog with 'noapic':
> >http://pasik.reaktio.net/xen/pv_ops-dom0-debug/pv_ops-dom0-bootlog-13-xen331-linux-2.6.29-rc5-noapic.txt
> >  
> What does your /proc/interrupts look like in this case?
>

Will check.
 
> >Failing dom0 bootlog (without 'noapic'):
> >http://pasik.reaktio.net/xen/pv_ops-dom0-debug/pv_ops-dom0-bootlog-12-xen331-linux-2.6.29-rc5.txt
> >  
> 
> Do you think you could boot from a usb device or something and see if 
> you can get /proc/interrupts for this as well?
> 

If I have enough time today I'll try making some USB root device..

-- Pasi

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel