Re: [Bug #13371] s2disk hangs with kernel 2.6.29 and later, SATA, Gigabyte EG45M-DS2H - culprit found

From: Rafael J. Wysocki
Date: Mon May 25 2009 - 19:36:46 EST

On Tuesday 26 May 2009, Richard Atterer wrote:
> Hello,
> "Jerry" contacted me off-list with information about the root of the
> problem - many thanks indeed!!!
> It turns out that the e100 driver is responsible. (The motherboard actually
> has a r8169 chip, but I added an old Intel PCI ethernet card I own.)
> By rmmoding e100 before s2disk, the problem goes away. Jerry mentions that
> he once saw a message about e100 failing to load its microcode - I never
> saw such a message.
> The most recent e100 commit ac7c992 by Thadeu Lima de Souza Cascardo (Apr
> 28) made some changes to the behaviour in the case of shutdown vs. suspend,
> maybe the problem is there? (But note that during bisecting, I tested
> kernels older than that commit, and not all of them worked.) Before that,
> f902283 (Mar 3 2008) mentions suspend in the log message.

OK, thanks for the information. I'll have a look at the e100 suspend-resume
code, but I really don't think commit ac7c992 is at fault here.

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