On Mon, Dec 02, 2019 at 11:55:20AM -0700, Jerry Snitselaar wrote:

On Sun Dec 01 19, Stefan Berger wrote:

quoted

On 11/29/19 5:37 PM, Jarkko Sakkinen wrote:

quoted

On Tue, Nov 26, 2019 at 08:17:51AM -0500, Stefan Berger wrote:

quoted

From: Stefan Berger <stefanb@linux.ibm.com>

Revert the patches that were fixing the probing of interrupts due
to reports of interrupt stroms on some systems

Can you explain how reverting is going to fix the issue?

The reverts fix 'the interrupt storm issue' that they are causing on
some systems but don't fix the issue with the interrupt mode not being
used. I was hoping Jerry would get access to a system faster but this
didn't seem to be the case. So sending these patches seemed the better
solution than leaving 5.4.x with the problem but going back to when it
worked 'better.'

I finally heard back from IT support, and unfortunately they don't
have any T490s systems to give out on temp loan. So I can only send
patched kernels to the end user that had the problem.

At least it is a fact that tpm_chip_stop() is called too early and that
is destined to cause issues.

Should I bake a patch or do you have already something?

/Jarkko