Re: Linux 3.3 release

[Linus Torvalds]

On Mon, Mar 26, 2012 at 8:23 AM, Calvin Walton <calvin.walton@xxxxxxxxxx> wrote:
> 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.

(Coming back to this thread late)

This issue should be fixed by commit c9651e70ad0a ("ASPM: Fix pcie
devices with non-pcie children") in mainline, and it's in the stable
queue too.

                      Linus
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