linux-kernel - Re: pnp changes -> suspend oops [Was: 2.6.26-rc5-mm2]

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Message-Id: <200806121557.28505.bjorn.helgaas@hp.com>
Date:	Thu, 12 Jun 2008 15:57:27 -0600
From:	Bjorn Helgaas <bjorn.helgaas@...com>
To:	Jiri Slaby <jirislaby@...il.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, kernel-testers@...r.kernel.org
Subject: Re: pnp changes -> suspend oops [Was: 2.6.26-rc5-mm2]

On Thursday 12 June 2008 03:39:14 pm Jiri Slaby wrote:
> On 06/12/2008 11:22 PM, Bjorn Helgaas wrote:
> > On Thursday 12 June 2008 03:10:04 pm Jiri Slaby wrote:
> >> On 06/11/2008 09:03 PM, Bjorn Helgaas wrote:
> >>> Before you go to all the trouble of bisecting it, can you turn on
> >>> CONFIG_PNP_DEBUG and try the following debug patch?  I think this
> >>> will prevent the oops, but it's just papering over the real problem,
> >>> so please capture the complete dmesg log.
> >> ACPI: PCI interrupt for device 0000:00:02.0 disabled
> >> serial 00:07: disabled
> >> serial 00:06: disabled
> >> ACPI handle has no context!
> >> ACPI: PCI interrupt for device 0000:00:1d.7 disabled
> >> ...
> >> serial 00:06:   no dma resource to encode!
> >> serial 00:06: activated
> >> serial 00:07:   no dma resource to encode!
> >> serial 00:07: activated
> >> ACPI: PCI Interrupt 0000:00:02.0[A] -> GSI 16 (level, low) -> IRQ 16
> > 
> > Interesting.  I wonder why a serial device would have a DMA resource.
> > We encode resources by following a template from _CRS, so evidently
> > that template had a DMA resource.  Or something deeper is wrong.
> > 
> > Can you send me the rest of that dmesg log?
> 
> Below.

Thanks, but it looks like CONFIG_PNP_DEBUG is not turned on.  Can
you turn that on and capture the log again, please?

Bjorn

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