Bug#659363: Hibernate freezes on HP dc7900 with Linux 3.2 (regression)

[Per Olofsson <pelle@debian.org>]

Hi Jonathan,

2012-02-10 22:18, Jonathan Nieder skrev:
> Per Olofsson wrote:
> 
>> Second time I hibernated my system, it froze. Kernel error messages
>> were printed on the console, I attach a photo of my display.
> 
> Thanks.  My only hints are to try narrowing this down using hints
> from Documentation/basic-pm-debugging.txt[1] and that it might be
> possible to get a fuller log using netconsole[2].

Thanks for the hints! It is a bit time-consuming to debug because the
problem does not happen every time I hibernate. However, it does happen
often enough.

I will try the debug steps and report back the results. Since suspend to
RAM works fine, I'm guessing that it has something to do with writing
the image to disk. Perhaps ACPI is interacting badly with the SATA
driver or so.

I also tried updating my BIOS, but it didn't change anything.

> Can you reproduce this without the i915 driver loaded?

Not really. It seems that the error only happens when I have a lot of
processes loaded in memory. Running from the console does not seem to
trigger it. I guess I could try running X with vesa for a while, but I'd
rather not if I don't have to.

-- 
Pelle