[coreboot] Fix some PCI issues on M57SLI v2

Harald Gutmann harald.gutmann at gmx.net
Wed Apr 8 20:28:33 CEST 2009


On Tuesday 07 April 2009 22:16:08 Ward Vandewege wrote:
> On Sat, Apr 04, 2009 at 12:54:52PM +0200, Harald Gutmann wrote:
> > On Friday 03 April 2009 21:33:15 Ward Vandewege wrote:
> > The first part of your message was fine to read, but this one worries me
> > a little bit.
> >
> > > However, I got this after having the machine up for a while:
> > >
> > > [  999.664992] Uhhuh. NMI received for unknown reason 00.
> > > [  999.665144] Uhhuh. NMI received for unknown reason a1.
> > > [  999.665147] You have some hardware problem, likely on the PCI bus.
> > > [  999.665149] Dazed and confused, but trying to continue
> > > [  999.667309] Do you have a strange power saving mode enabled?
> > > [  999.667309] Dazed and confused, but trying to continue
> > >
> > > This was right after I did
> > >
> > >   cat /proc/interrupts
> > >
> > > a couple times - but that may have been a coincidence.
> >
> > I think it could have been a coincidence, but i'd be interested in
> > further details, as this is maybe a result of a "wrong" mptable setup.
>
> OK.
>
> > Which kernel version did you use on which distribution?
>
> Linux radio 2.6.27-7-generic #1 SMP Tue Nov 4 19:33:06 UTC 2008 x86_64
> GNU/Linux
>
> That's on ubuntu 8.10, 64 bit as you can see.
>
> > dmesg output, lspci output, /proc/interrupts, and anything else which
> > could be interesting. :)
>
> Sure. This is with the f14 bios:
>
>  
> http://ward.vandewege.net/coreboot/m57sli/v1.1/m57sli-v1.1-f14-nic-in-black
>-pcie-lspci
> http://ward.vandewege.net/coreboot/m57sli/v1.1/m57sli-v1.1-f14-nic-in-black
>-pcie-lspci-vvvvvxxxxxx
> http://ward.vandewege.net/coreboot/m57sli/v1.1/m57sli-v1.1-f14-nic-in-black
>-pcie-dmesg
> http://ward.vandewege.net/coreboot/m57sli/v1.1/m57sli-v1.1-f14-nic-in-black
>-pcie-cat-proc-interrupts
> http://ward.vandewege.net/coreboot/m57sli/v1.1/m57sli-v1.1-f14-nic-in-black
>-pcie-acpidump
>
> And this is with your latest patch:
>
> http://ward.vandewege.net/coreboot/m57sli/v1.1/m57sli-v1.1-cb-interrupt-pat
>ch-20090403-nic-in-black-pcie-lspci
> http://ward.vandewege.net/coreboot/m57sli/v1.1/m57sli-v1.1-cb-interrupt-pat
>ch-20090403-nic-in-black-pcie-lspci-vvvvvxxxxxx
> http://ward.vandewege.net/coreboot/m57sli/v1.1/m57sli-v1.1-cb-interrupt-pat
>ch-20090403-nic-in-black-pcie-dmesg
> http://ward.vandewege.net/coreboot/m57sli/v1.1/m57sli-v1.1-cb-interrupt-pat
>ch-20090403-nic-in-black-pcie-cat-proc-interrupts
> http://ward.vandewege.net/coreboot/m57sli/v1.1/m57sli-v1.1-cb-interrupt-pat
>ch-20090403-nic-in-black-pcie-acpidump
>
> The machine seems a bit unhappy - sluggish over ssh but not on console. X
> was sucking up a lot of CPU too. Something isn't quite right I think.
That's also my opinion, maybe most of the code in the tree is right for v1 
(especially the dwords), and just a few lines are false/missing.

Maybe this patch is enough for v1.

> Thanks,
> Ward.
Kind regards,
Harald


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