linux-kernel - Re: Regression: kernel 2.6.24{,.1} ahci problem, does not boot

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Date:	Sat, 14 Jun 2008 20:00:15 -0700 (PDT)
From:	Piter PUNK <piterpunk@...ckware.com>
To:	htejun@...il.com
cc:	linux-kernel@...r.kernel.org
Subject: Re: Regression: kernel 2.6.24{,.1} ahci problem, does not boot

Hi,

I have a notebook with SiS968. It works with 2.6.23.x
kernels but not with 2.6.24+ kernels. Probably my
problem is the same of this old thread:

http://lkml.org/lkml/2008/2/14/263

The error is exactly the same.

Looking the changes from 2.6.23 to 2.6.24 in

http://kernelnewbies.org/Linux_2_6_24#head-f29764e7ef293be84e2f8aa1b08b8816b15ebfca

I try to revert two commits to see which one brokes
my SATA device support. The guilt is this one:

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=7d50b60b5e38f910ad69f0187af00f5d6a8970d4

It implements PMP support. In attached patch, I
disable PMP support in ahci.c to SiS SATA controllers.

I hope i am sending the patch to correct place and
it works fine to others (well, it's working to me).

The patch is against 2.6.24.5, but i think it's easy
to adapt to 2.6.25+

Thanks

Piter PUNK

View attachment "sis96x_nopmp.patch" of type "TEXT/PLAIN" (1317 bytes)