Re: [REGRESSION] 6.12.36+: usb: hub: post-resume delayed work triggers > uncorrected MCE / data fabric sync flood on Threadripper 7970X > (bisected to aec11e5f9c45)

[Mario Limonciello <mario.limonciello@amd.com>]

On 8/26/26 01:27, Mathieu Fluhr wrote:
>> The workaround you can do for now is to disable runtime PM on the XHCI
>> controller to avoid triggering it.  But it's a platform issue.
> 
> So, long story short, the kernel source code is correct, and the issue comes
> from the BIOS/AGESA, correct?

Correct.

> 
>> For a proper fix you need to reach out to ASUS to get an AGESA upgrade.
>> You can ask them to reach out to AMD if they need assistance/guidance on
>> the versions that contain the fix for this.  You can share this thread
>> with them for reference.
> 
> I will. But this leaves me with a few questions here:
> 1. Do you already have a fixed AGESA on AMD side, that ASUS could use?

Yes; it's already fixed by AMD.  ASUS can get the fix from AMD.

> 2. Does this issue also affect other threadripper generations, like the 9970x?

It's only in Storm Peak CPUs, not in Chagall or Shimada Peak.
> 3. I guess not only ASUS is concerned but Also ASRock and Gigabyte which
> also produces TRX50 mainboards, correct?
> 
Yes; all board vendors are affected.  I know that some vendors already 
have the fixes out.