[tor-dev] [Win32] crash in test/bench.exe

isis agora lovecruft isis at torproject.org
Tue Mar 13 19:22:15 UTC 2018


Gisle Vanem transcribed 1.0K bytes:
> I wrote:
> 
> >Seems bench.c uses some mutex which is not initialised
> >with 'tor_mutex_init()'. I fail to see which that should
> >be.
> 
> With this patch, I no longer get that crash:
> 
> --- a/bench.c 2018-01-25 20:15:13
> +++ b/bench.c 2018-03-13 12:38:09
> @@ -713,6 +713,8 @@
>      printf("Couldn't seed RNG; exiting.\n");
>      return 1;
>    }
> +
> +  init_protocol_warning_severity_level();
>    crypto_init_siphash_key();
>    options = options_new();
>    init_logging(1);
> 
> ----
> 
> But a bit crude. IMHO bench.c shouldn't have to care about such details
> like mutex'es and atomic counters.

Hello Gisle,

Thanks for the bug report and the patch!  I've made #25479 [0] for this.

Can I ask what version of Windows you were running the benchmarks on?  It
seems like it might possibly have been due to differences in behaviours
between various Windows flavours in the InitializeCriticalSection() function
[1] (which was being called from tor_mutex_init(), itself called from
init_logging())?

[0]: https://trac.torproject.org/projects/tor/ticket/25479
[1]: https://msdn.microsoft.com/en-us/library/windows/desktop/ms683472(v=vs.85).aspx)

Best regards,
-- 
 ♥Ⓐ isis agora lovecruft
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