Hi, On Thu, 1 Dec 2022, Ricardo Ribalda wrote:

On Thu, 1 Dec 2022 at 14:22, 'Oliver Neukum' via Chromeos Kdump <chromeos-kdump@google.com> wrote:

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On 01.12.22 14:03, Ricardo Ribalda wrote:

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This patchset does not modify this behaviour. It simply fixes the stall for kexec().

The patch that introduced the stall: 83bfc7e793b5 ("ASoC: SOF: core: unregister clients and machine drivers in .shutdown")

That patch is problematic. I would go as far as saying that it needs to be reverted.

It fixes a real issue. We have not had any complaints until we tried to kexec in the platform. I wont recommend reverting it until we have an alternative implementation.

kexec is far less common than suspend/reboot.

I've posted an alternative to ALSA list that reverts the problematic patch and fixes the problem (the patch was originally addressing) in a different way: https://mailman.alsa-project.org/pipermail/alsa-devel/2022-December/209776.h... No changes outside sound/soc/ are needed with this approach. Br, Kai