Re: x86/pci Oops with CONFIG_SND_HDA_INTEL

From: Yinghai
Date: Wed May 19 2010 - 14:03:57 EST

On 05/19/2010 10:16 AM, Graham Ramsey wrote:
> On 19/05/10 17:44, Bjorn Helgaas wrote:
>> On Wednesday, May 19, 2010 09:13:24 am Graham Ramsey wrote:
>>> I am on x86_64 with latest (v2.6.34) kernel. When i set
>>> CONFIG_SND_HDA_INTEL=Y It hangs at an early stage in boot with kernel
>>> oops.
>>> When i use CONFIG_SND_HDA_INTEL=M the machine will boot, and i get the
>>> dmesg (below).
>>> I have bisected down to one commit that causes the problem:
>>> commit 3e3da00c01d050307e753fb7b3e84aefc16da0d0
>>> x86/pci: AMD one chain system to use pci read out res
>>> ...
>> I CC'd Yinghai, the author of that patch. That commit went in after
>> 2.6.33, so this is probably a regression between .33 and .34. Can
>> you open a report at and respond to this
>> thread with the URL?
>> Please attach the complete dmesg (with SND_HDA_INTEL=m) to the
>> bugzilla.
>> Thanks a lot for your report!

please send out bootlog with pci=earlydump.

looks like your system have a very sick BIOS,

system have two HT chains.

PCI: Probing PCI hardware (bus 00)
PCI: Discovered primary peer bus 80 [IRQ]

rt to non-coherent only set one link:
node 0 link 0: io port [1000, ffffff]
TOM: 0000000080000000 aka 2048M
node 0 link 0: mmio [e0000000, efffffff]
node 0 link 0: mmio [a0000, bffff]
node 0 link 0: mmio [80000000, ffffffff]
bus: [00, ff] on node 0 link 0

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