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Re: Separating stdout and stderr

From: Christophe Lyon
Subject: Re: Separating stdout and stderr
Date: Fri, 25 Mar 2016 17:54:53 +0100

On 25 March 2016 at 17:01, Rob Savoye <address@hidden> wrote:
> On 03/25/2016 08:57 AM, Christophe Lyon wrote:
>> Well, as Yvan showed with his recent patches, we seem to be using
>> DejaGnu in an unusual configuration, which uncovers corner case bugs.
>   As I've mentioned before, we need to make our validation less unusual. :-)
>> I'm seeing "random" results in sanitizers tests, which is a relatively
>> recent addition to GCC.
>> And I know we are not the only ones having trouble with the
>> sanitizers results.
>   I agree with Ben, I think the problem is with the sanitizer tests, and
> not necessarily something that has to be "fixed" in DejaGnu.

At this point, I don't know where the problem is. We've been seeing random
results mostly in the sanitizer tests for months.

A possible explanation is that these tests wrongly expect a given order between
stdout & stderr, which is not granted, and might be changed because of
the high load we are putter on the tester machine.

As I said, I'm still just trying to make sure that this is actually
what is happening.

And making DejaGnu enforce an order on stdout and stderr would
certainly help diagnose badly written tests.

>         - rob -

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