Re: [PATCH v2 1/2] tpm/tpm_tis: Disable interrupts for Framework Laptop Intel 12th gen

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On Fri, 2023-08-11 at 10:18 +0200, Thorsten Leemhuis wrote:
> Jarkko & Lino, did you see this msg Grundik posted that about a week
> ago? It looks like there is still something wrong there that need
> attention. Or am I missing something?
> 
> FWIW, two more users reported that they still see similar problems
> with
> recent 6.4.y kernels that contain the "tpm,tpm_tis: Disable
> interrupts
> after 1000 unhandled IRQs" patch. Both also with MSI laptops:
> 
> https://bugzilla.kernel.org/show_bug.cgi?id=217631#c18
> https://bugzilla.kernel.org/show_bug.cgi?id=217631#c20
> 
> No reply either afaics.

As I said before: it does not looks like blacklisting is a good
solution at all.

If there are general fix, then blacklisting only makes testing of that
fix more difficult. If general fix works, why blacklist? If it does not
work and its impossible to figure out why — maybe there should be
kernel boot option to select between polling/irq instead of/in addition
to hard-coded blacklist.

Unfortunately, its very hard to test this fixes on my side: since TPM
is not a module, but compiled into kernel itself, it requires
recompiling a whole kernel, which is quite a task for a laptop. But I
will try my best, if needed.





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