Re: 2.6.34-rc6 pci bridge problems

Re: 2.6.34-rc6 pci bridge problems

[Christian Lamparter]

On Wednesday 05 May 2010 20:41:26 David H. Lynch Jr. wrote:
> When I build out of the wireless-testing git tree (puled today) 
> 2.6.34-rc6 using my current systems .config I get a very quick error
> on boot about PCI bridge windows.
> googling the error indicates this is a know 2.6.34 problem and that 
> there are fixes in other 2.6.34 trees.
> I have been unable to find the actual patches or I would just apply 
> them to wireless-testing.
so? If there is already a patch available, then the linux-pci people
have to know something about it. I'm sure they can help you out there.
Just describe your problem in detail (a extensive checklist is located in
your kernel's root directory "REPORTING-BUGS" file) as a reply to this mail.

I simply can't give you any support for problems I know nothing about.
So please, concentrate your questions around this particular device and
interaction with firmware and driver. But as I said in my previous mail,
you don't need a special kernel driver. *carlu* really is a userspace-only
application that can communicate with the device (through the use of
libusb) at the "lowest level". It may be even possible to port the code to
other platforms (FreeBSD & Mac OS X, Windows) with little effort.

Regards,
	Chr

Re: 2.6.34-rc6 pci bridge problems

[Bjorn Helgaas]

On Wednesday, May 05, 2010 01:59:55 pm Christian Lamparter wrote:
> On Wednesday 05 May 2010 20:41:26 David H. Lynch Jr. wrote:
> > When I build out of the wireless-testing git tree (puled today) 
> > 2.6.34-rc6 using my current systems .config I get a very quick error
> > on boot about PCI bridge windows.
> > googling the error indicates this is a know 2.6.34 problem and that 
> > there are fixes in other 2.6.34 trees.
> > I have been unable to find the actual patches or I would just apply 
> > them to wireless-testing.

I made significant changes in the way we handle PCI bridge windows,
and I'm eager to fix any issues in that area.  But "very quick error
on boot" doesn't give me any information to work with.

Please attach your complete dmesg output, serial console log (with
"ignore_loglevel"), digital photo of the error, or other specific
details.

Bjorn

Re: 2.6.34-rc6 pci bridge problems

[Bjorn Helgaas]

On Thursday, May 06, 2010 09:09:58 am Bjorn Helgaas wrote:
> On Wednesday, May 05, 2010 01:59:55 pm Christian Lamparter wrote:
> > On Wednesday 05 May 2010 20:41:26 David H. Lynch Jr. wrote:
> > > When I build out of the wireless-testing git tree (puled today) 
> > > 2.6.34-rc6 using my current systems .config I get a very quick error
> > > on boot about PCI bridge windows.
> > > googling the error indicates this is a know 2.6.34 problem and that 
> > > there are fixes in other 2.6.34 trees.
> > > I have been unable to find the actual patches or I would just apply 
> > > them to wireless-testing.
> 
> I made significant changes in the way we handle PCI bridge windows,
> and I'm eager to fix any issues in that area.  But "very quick error
> on boot" doesn't give me any information to work with.
> 
> Please attach your complete dmesg output, serial console log (with
> "ignore_loglevel"), digital photo of the error, or other specific
> details.

Ping!  If there's a problem here, I want to fix it as soon as possible.
Do you have any more details?  What error message did you google?

Thanks,
  Bjorn

Re: 2.6.34-rc6 pci bridge problems

[Christian Lamparter]

On Friday 07 May 2010 17:46:41 Bjorn Helgaas wrote:
> On Thursday, May 06, 2010 09:09:58 am Bjorn Helgaas wrote:
> > On Wednesday, May 05, 2010 01:59:55 pm Christian Lamparter wrote:
> > > On Wednesday 05 May 2010 20:41:26 David H. Lynch Jr. wrote:
> > > > When I build out of the wireless-testing git tree (puled today) 
> > > > 2.6.34-rc6 using my current systems .config I get a very quick error
> > > > on boot about PCI bridge windows.
> > > > googling the error indicates this is a know 2.6.34 problem and that 
> > > > there are fixes in other 2.6.34 trees.
> > > > I have been unable to find the actual patches or I would just apply 
> > > > them to wireless-testing.
> > 
> > I made significant changes in the way we handle PCI bridge windows,
> > and I'm eager to fix any issues in that area.  But "very quick error
> > on boot" doesn't give me any information to work with.
> > 
> > Please attach your complete dmesg output, serial console log (with
> > "ignore_loglevel"), digital photo of the error, or other specific
> > details.
> 
> Ping!  If there's a problem here, I want to fix it as soon as possible.
> Do you have any more details?  What error message did you google?

Pong! Unfortunately, I haven't heard any news about this pci bridge issue
from "David H. Lynch Jr.". But as you say: "Time for patching 2.6.34-rcX
regressions is running out". Therefore, David: please hurry up and post
what you are seeing. Most of oopses, can be easily captured with a serial
console (a setup is described in Documentation/serial-console.txt )

Regards,
	Chr