concurrent rr record sessions on the same binary

Robert O'Callahan robert at ocallahan.org
Mon Nov 16 02:49:32 UTC 2015


On Mon, Nov 16, 2015 at 3:47 PM, Wade Hennessey <wadehennessey at gmail.com>
wrote:

> Is it safe to run multiple rr record sessions on a single binary? I assume
> it is, but I don't want to do it if there are known problems.
>

Yes.


> I have trouble recreating bugs under rr because running everything on one
> core makes my bugs disappear even after many hours and low max_ticks (-c)
> settings. -wade
>

Yes, that's definitely a problem for some bugs. I'm trying some approaches
to make this better by introducing more nondeterminism into the scheduler.

Rob
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