RE: SR-IOV problem with Intel 82599EB (not enough MMIO resourcesfor SR-IOV)

From: Li, Sibai
Date: Tue Nov 13 2012 - 13:25:53 EST



> -----Original Message-----
> From: yhlu.kernel@xxxxxxxxx [mailto:yhlu.kernel@xxxxxxxxx] On Behalf Of
> Yinghai Lu
> Sent: Tuesday, November 13, 2012 10:17 AM
> To: Li, Sibai
> Cc: Jason Gao; bhelgaas@xxxxxxxxxx; Rose, Gregory V; ddutile@xxxxxxxxxx;
> Kirsher, Jeffrey T; linux-kernel; netdev; kvm; e1000-devel@xxxxxxxxxxxxxxxxxxxxx;
> linux-pci@xxxxxxxxxxxxxxx
> Subject: Re: SR-IOV problem with Intel 82599EB (not enough MMIO resources
> for SR-IOV)
>
> On Tue, Nov 13, 2012 at 8:04 AM, Li, Sibai <sibai.li@xxxxxxxxx> wrote:
> >
> >>
> >> Thank you very much,I try "pci=realloc" in Centos 6.3,and now it works for
> me.
> >>
> >> thank you Sibai,Our server "Dell R710",its BIOS version is just
> >> v.6.3.0 and release date is 07/24/2012,and I also configured
> >> intel_iommu=on in the grub.conf file,but I can't find these IOMMU
> >> options in "Device Drivers" in my
> >> kernel(2.6.32-279) .config file , btw my os is Centos
> >> 6.3(RHEL6.3),although the problem solved,I'd like to know what's your os
> version ,kernel version?
> >
> > I am using RHEL6.3 with unstable kernel 3.7.0-rc
>
> that means that config has
> CONFIG_PCI_REALLOC_ENABLE_AUTO=y
>
> So you don't need to append "pci=realloc"
>
> Yinghai

Never append "pci=realloc" for both kernel 2.6.32.279 and kernel 3.5.0 above.
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