[Fedora-xen] pciback at boot time

[Konrad Rzeszutek Wilk]

On Mon, Oct 15, 2012 at 09:50:31AM -0400, Gordon McLellan wrote:
> On Mon, Oct 15, 2012 at 9:03 AM, Konrad Rzeszutek Wilk
> <konrad.wilk at oracle.com> wrote:
> >
> > Huh? Why? This is what I've in my /etc/defalt/grub
> >
> > [root at phenom konrad]# cat /etc/default/grub
> > GRUB_TIMEOUT=5
> > GRUB_DISTRIBUTOR="Xen 4.1"
> > GRUB_DEFAULT=saved
> > GRUB_CMDLINE_LINUX="rd.md=0 rd.lvm=0 rd.dm=0  KEYTABLE=us debug loglevel=8 SYSFONT=latarcyrheb-sun16  rd.luks=0 LANG=en_US.UTF-8 radeon.modeset=0  xen-pciback.hide=(01:00.0)(01:00.1)(02:00.0)"
> > GRUB_CMDLINE_XEN="loglvl=all guest_loglvl=all iommu=verbose"
> >
> > And it works quite well for me and I am using the stock Fedora kernel.
> >
> 
> Konrad,
> 
> I'm not sure... it is probably something I have done wrong, and
> probably something simple so I am overlooking it.  I have gone back to
> stock FC17 kernel and slimmed down my hide list to see if that helps:

Hm, just realized that the machine is running F16, not F17!

> [root at xenhost ~]# cat /etc/default/grub
> GRUB_TIMEOUT=5
> GRUB_DISTRIBUTOR="Fedora"
> GRUB_DEFAULT=saved
> GRUB_CMDLINE_LINUX="rd.md=0 rd.dm=0 SYSFONT=True rd.lvm.lv=vg0/swap
> KEYTABLE=us rd.lvm.lv=vg0/root rd.luks=0 LANG=en_US.UTF-8
> xen-pciback.hide=(0b:00.0)(09:00.0)"
> GRUB_CMDLINE_XEN="dom0_mem=4096M,max:4096M dom0_max_vcpus=2
> dom0_vcpus_pin loglvl=all guest_loglvl=all"
> 
> however the xen-pciback module is not loading at boot, and when I try
> to load it manually:
> [root at xenhost ~]# modprobe -vv xen-pciback
> insmod /lib/modules/3.6.1-1.fc17.x86_64/kernel/drivers/xen/xen-pciback/xen-pciback.ko
> 0)
> libkmod: kmod_module_insert_module: Failed to insert module
> '/lib/modules/3.6.1-1.fc17.x86_64/kernel/drivers/xen/xen-pciback/xen-pciback.ko':
> No such file or directory
> ERROR: could not insert 'xen_pciback': No such file or directory

That would imply it is simply gone. And does

cat /boot/config-3.6.1-1* | grep BACKEND

tell you whether the Xen PCI backend is compiled in (=y) or is a module (=m)?
> 
> It is claiming file not found, but if I run the command on the first
> line (insmod) it claims a different error, it does not like the "0)"
> [root at xenhost ~]# insmod
> /lib/modules/3.6.1-1.fc17.x86_64/kernel/drivers/xen/xen-pciback/xen-pciback.ko
> 0)
> -bash: syntax error near unexpected token `)'

What is the "0)' from?