2017-02-15 16:42:45

by Harsh Jain

Subject: BUG: af_alg bind fails for 50 % request from userspace for hash algo

Hi Herbert/Stephen,

When I try to run 100 application which calculates sha384 digest from userspace, nearly 50 applications fail in bind system call with error ENOENT.

"crypto_alg_mod_lookup" in api.c call fails in kernel space. Issue comes in 1st try only(Seems some relation with crypto test executions). If I execute same test again issue didn't reproduce.

Regards

Harsh Jain

2017-02-17 22:25:49

by Stephan Müller

Subject: Re: BUG: af_alg bind fails for 50 % request from userspace for hash algo

Am Mittwoch, 15. Februar 2017, 22:12:16 CET schrieb Harsh Jain:

Hi Harsh,

> Hi Herbert/Stephen,
>
> When I try to run 100 application which calculates sha384 digest from
> userspace, nearly 50 applications fail in bind system call with error
> ENOENT.
>
> "crypto_alg_mod_lookup" in api.c call fails in kernel space. Issue comes in
> 1st try only(Seems some relation with crypto test executions). If I
> execute same test again issue didn't reproduce.

I can concur that once in a while I see an ENOENT too for hashes. Let me try
to investigate that.
>
> Regards
>
> Harsh Jain


Ciao
Stephan