[CentOS] Anyone already tried to backport the latest ASPM kernel patch to 6.2?

Sun Feb 12 23:39:25 UTC 2012
Michael Lampe <lampe at gcsc.uni-frankfurt.de>

Patrick Lists wrote:

> Iirc to enable ASPM on Fedora the kernel must be booted with
> pcie_aspm=force. Maybe you need to use that option too? For more info
> see:
> http://www.phoronix.com/scan.php?page=article&item=linux_aspm_solution&num=1

That's no general solution. It may work, but (e.g.) it doesn't work for 
me on my Thinkpad X301. There are side-effects.

The idea of the upstream patch is to mimic Windows:

 > With 3.2.5 "ASPM disabled" means: When the ACPI says ASPM is
 > disabled Linux will leave it alone, which is what Windows is
 > doing. The assumption is that explicitly disabling ASPM is more
 > problematic than doing nothing."

(Copied somewhere from LKML.)

In other words: my BIOS is broken. But it's broken for all Lenovo 
Notebooks. So ...