Re: TPM operation times out (very rarely)

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On Fri, Jan 31, 2025 at 07:12:06PM +0200, Jarkko Sakkinen wrote:
> On Fri Jan 31, 2025 at 3:02 PM EET, Michal Suchánek wrote:
> > It looks like the timeout_b is used exclusively as the ready timeout *),
> > with various sources of the value depending on chip type.
> >
> > Then increasing it should not cause any problem other than the kernel
> > waiting longer when the TPM chip is really stuck.
> >
> > * There is one instance of use of timeout_b for TPM_STS_VALID in
> > st33zp24_pm_resume.
> 
> Possible for you to give a shot for patch and try it out for a while?
> I'm fine with 2x, or even 4x in this case.

I will see what I can do. It will definitely take a while.

How would you like to multiply it?

At the sime the timeout_b is assigned, or at the time it's used?

Any specific patch that you have in mind?

Thanks

Michal




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