On 11/30/22 09:47, Ricardo Ribalda wrote:
> During kexec(), the userspace is frozen. Therefore we cannot wait for it
> to complete.
>
> Avoid running snd_sof_machine_unregister during shutdown.
That's not what you are doing below - you only unregister clients
conditionally.
I don't know if that's a stale commit message and can't reconcile it
either with the initial discussions in this thread where we were
referring to snd_card_disconnect(), etc?
Confused.
> @@ -484,7 +485,8 @@ int snd_sof_device_shutdown(struct device *dev)
> * make sure clients and machine driver(s) are unregistered to force
> * all userspace devices to be closed prior to the DSP shutdown sequence
> */
> - sof_unregister_clients(sdev);
> + if (!kexec_with_frozen_processes())
> + sof_unregister_clients(sdev);
>
> snd_sof_machine_unregister(sdev, pdata);
>
>
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