Bug#547495: Debian Lenny 5.0.2 -- XEN Hypervisor 3.2.1 ; linux-image-2.6.26-2-xen-amd64 ; Hang under boot

[Henrik Dige Semark <hds@semark.dk>]

Ian Campbell skrev:

On Thu, 2009-09-24 at 11:06 +0200, Henrik Dige Semark wrote:
  

Ian Campbell skrev: 
    

On Sun, 2009-09-20 at 12:51 +0200, Henrik Dige Semark wrote:
  
      

[    7.611998] Fatal DMA error! Please use 'swiotlb=force'
[    7.612033] ------------[ cut here ]------------
[    7.612036] kernel BUG at arch/x86/kernel/pci-nommu-xen.c:70!
    
        

Did you try this? Note that it should be added to the domU command line.

Ian.
  
      

Yes I have try to add swiotlb=force to my grup menu.lst
    

It should go on the Linux kernel command line, not the hypervisor
command line e.g.:

  

domU:
# cat /boot/grub/menu.lst
[ ... ]
title           Xen 3.2-1-amd64 / Debian GNU/Linux, kernel 2.6.26-2-xen-amd64
root            (hd0,1)
kernel          /xen-3.2-1-amd64.gz iommu=1 
module          /vmlinuz-2.6.26-2-xen-amd64 swiotlb=force root=/dev/mapper/system-server ro console=tty0 pciback.hide=(03:05.0)(03:06.0)(03:07.0)
module          /initrd.img-2.6.26-2-xen-amd64
[ ... ]
    

Those pciback.hide bits are spurious in a domU I should think.
  

If I don't have pciback.hide=(03:05.0)(03:06.0)(03:07.0)  in my grub menu.lst on dom0; domU can't use use them.

# cat /etc/xen/webserver.cfg
[ ... ]
vif         = [ 'mac=00:16:3E:39:2D:0A' ]
pci        = [ '0000:03:05.0', '0000:03:06.0', '0000:03:07.0' ]
[ ... ]

I have tryed to change grub, so on next reboot I will see if che changes have worked :)

---
Med Venlig Hilsen / Best regards
Henrik Dige Semark

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