Re: cryptomgr_test / drbg_ctr: BUG: sleeping function called from invalid context

Stephan Müller
2018-05-20T20:06:17Z

Am Freitag, 18. Mai 2018, 10:36:04 CEST schrieb Geert Uytterhoeven:

Hi Geert,
>
> I tried following the code path, but couldn't find where it went wrong.
>
> mutex_lock(&drbg->drbg_mutex) is called from drbg_instantiate(), which is
> inlined by the compiler into drbg_kcapi_seed().
>
> Do you have a clue?

It is the first time I hear from such an issue. Yes, the DRBG should not be
called in atomic context. But I do not see where we have an atomic context
(either a spin_lock or in an interrupt handler) when we are executing the test
manager.

I will keep looking.

Ciao
Stephan