On 2/1/2017 1:52 PM, Lorenzo Pieralisi wrote:

quoted

Sure, send it to both Nate and me.

I debugged the issue and Nate's fix is correct, the fact that you
can't it hit it with mainline is just a matter of timing because it has
to do with the CTX pointer value (we OR it with the existing value), so
it may work or not depending on how the cdptr memory allocation
pattern turns out to be (which explains why Nate and I can hit it with
simple PCI device remove/add execution too).

So it is neither an ACPI nor an IOMMU probe deferral issue per-se,
fix is already queued, so it is all good.

What about USB stalls ?

Thanks !
Lorenzo

I'll get a hold of Nate and debug this. We were waiting for you to send us
debug code.

-- 
Sinan Kaya
Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm Technologies, Inc.
Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.