Re: x86/pci Oops with CONFIG_SND_HDA_INTEL

From: Graham Ramsey
Date: Wed May 19 2010 - 18:47:01 EST

On 19/05/10 19:01, Yinghai wrote:
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
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

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


I have uploaded full boot log (of a working kernel) to bug if that is ok

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