[Bug 216230] "irq9: nobody cared" on Thinkpad T14 Gen1 (AMD) when s2idle is enabled

[bugzilla-daemon@kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=216230

--- Comment #8 from Mario Limonciello (AMD) (mario.limonciello@amd.com) ---
> Although I'm afraid it won't be very interesting.

It might not be, but once we know the timing relative to pinctrl-amd loading we
can know if it's that.  If it's not, then our next step will be to crank up
ACPI debugging output to see if it correlates with an ACPI event.

> Okay. Would adding pinctrl_amd to initramfs be enough to rule out this
> possibility?

Yeah that or compiling it as built-in.

> I'm aware but I've been using this machine with forced ASPM for about 2 years
> with no apparent issues related to that. I'll give it a go.

I guess  the reason you do it is for improved power consumption.  I think you
should contrast how much you save with a watt meter and what devices forcing
ASPM actually changes.  If If you find that you have improved power consumption
from something it's better to ask Lenovo to change the defaults in their BIOS. 
They're more well equipped to do stress testing and analysis that PCIe is still
performing properly using the proper equipment.

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