Re: [Xen-devel] Please test xen/stable-2.6.32.x in xen.git

[Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>]

> >  3). serial log of your Dom0 with debug options cranked up: Xen command
> > line requires you to have 'loglvl=all' and the Linux line to have
> > 'debug'. For details look in 
> > http://wiki.xensource.com/xenwiki/XenParavirtOps
> > in the section titled "Are there more debugging options I could enable
> > to troubleshoot booting problems"
> 
> These option are running, but I've no serial port.

Looking at the files I am under the impression that your Dom0 is a
pretty recent one, say 2.6.31. There was a missing patch that did not
share IRQs in that tree that got added.. on 2010-02-19:

commit 733bcb9a1a2d8dba3a4ef3edc3bc009f56251404
Merge: be30a4f 7ec723a
Author: Jeremy Fitzhardinge <jeremy.fitzhardinge@xxxxxxxxxx>
Date:   Fri Feb 19 14:18:19 2010 -0800

    Merge branch 'xen/pcifront' into xen/master
    
    * xen/pcifront:
      xen-pci: Take advantage of the shared IRQ flags.
      xen/apic: fix shared irq device passthrough
    

I am curious whether you have that or not?
If you see that, then you are set on your Dom0 side.

Your DomU kernel is a mystery to me. From your [4] it looks as
an old PCI front driver, say 2.6.27 or 2.6.18 type. I've looked briefly
at fli4l-3.5.0-rev18309 web-site and the kernels I found there had no
Xen support. So.. what kernel is this?

It is paramount for the Dom0 and DomU to both have the patches for
shared IRQ to work properly. At some point the Dom0 code paths had it,
but not the DomUs. Nowadays, all of the Jeremy's xen trees should have
it: xen/stable-2.6.31.x , xen/stable-2.6.32.x and xen/next.

> 
> >  4). your console log of DomU. This is usually the output from 'xm
> > console <your guest>'
> 
> [3].
> 
> >  5). cat /proc/interrupts in Dom0
> 
> [4].
> 
> >  6). cat /proc/interrupts in DomU
> 
> [5].
> 
> Regards,
> Stefan Kuhne
> 
> -- 
> [1]: http://skweb.buetow.org/Linux/EisXen/xen-4.0.0/lspci-dom0.txt
> [2]: http://skweb.buetow.org/Linux/EisXen/xen-4.0.0/lspci-domU.txt
> [3]: http://skweb.buetow.org/Linux/EisXen/xen-4.0.0/starting-domU.txt
> [4]: http://skweb.buetow.org/Linux/EisXen/xen-4.0.0/interrupts-dom0.txt
> [5]: http://skweb.buetow.org/Linux/EisXen/xen-4.0.0/interrupts-domU.txt
> 



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