Re: diagnosing resume failures after disconnected USB4 drives (Was: Re: PCI/ASPM: Fix L1SS saving (linus/master commit 7507eb3e7bfac))

Kenneth Crudup
2025-02-14T17:39:37Z

This is excellent news that you were able to reproduce it- I'd figured
this regression would have been caught already (as I do remember this
working before) and was worried it may have been specific to a
particular piece of hardware (or software setup) on my system.

I'll see what I can dig up on my end, but as I'm not expert in these
subsystems I may not be able to diagnose anything until your return.

I also saw some DRM/connected fixes posted to Linus' master so maybe one
of them corrects this new display-crash issue (I'm not home on my big
monitor to be able to test yet).

-Kenny

On 2/14/25 08:29, Mika Westerberg wrote:
> Hi,
>
> On Thu, Feb 13, 2025 at 11:19:35AM -0800, Kenneth Crudup wrote:
>>
>> On 2/13/25 05:59, Mika Westerberg wrote:
>>
>>> Hi,
>>
>> As Murphy's would have it, now my crashes are display-driver related (this
>> is Xe, but I've also seen it with i915).
>>
>> Attached here just for the heck of it, but I'll be better testing the NVMe
>> enclosure-related failures this weekend. Stay tuned!
>
> Okay, I checked quickly and no TB related crash there but I was actually
> able to reproduce hang when I unplug the device chain during suspend. I did
> not yet have time to look into it deeper. I'm sure this has been working
> fine in the past as we tested all kinds of topologies including similar to
> this.
>
> I will be out next week for vacation but will continue after that if the
> problem is not alraedy solved ;-)