linux-kernel - Re: Linux 3.3 release

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Date:	Mon, 26 Mar 2012 11:23:53 -0400
From:	Calvin Walton <calvin.walton@...stin.ca>
To:	Romain Francoise <romain@...bokech.com>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Matthew Garrett <mjg@...hat.com>,
	Jesse Barnes <jbarnes@...tuousgeek.org>
Subject: Re: Linux 3.3 release

On Mon, 2012-03-19 at 10:28 +0100, Romain Francoise wrote:
> There seems to be a regression in the final release compared to -rc7,
> specifically this commit:
> 
> > Matthew Garrett (1):
> >       PCI: ignore pre-1.1 ASPM quirking when ASPM is disabled
> 
> causes an early kernel panic on my machine (Intel DP67BG). Reverting the
> change fixes it. Unfortunately it crashes before setting up the video mode
> so I don't have the full stack trace, but RIP points to
> pcie_aspm_init_link_state().
> 
> When the machine boots successfully, dmesg contains the following related
> to ASPM:
> 
> [    0.382384] ACPI FADT declares the system doesn't support PCIe ASPM, so disable it
> [    0.433016] pci 0000:06:00.0: disabling ASPM on pre-1.1 PCIe device.  You can enable it with 'pcie_aspm=force'

This commit is also breaking boot on one of my boxes; it's causing the
pata_jmicron driver to fail to detect my IDE boot drive. This was
reported in this thread as well:
https://lkml.org/lkml/2012/3/22/6

Apparently, using the 'pcie_aspm=force' may work around the issue, from
some reports that I've seen when searching around. Haven't tried it
myself, yet.

-- 
Calvin Walton <calvin.walton@...stin.ca>

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