3 libstdc++ tests fail at random

[Paolo Carlini]

On 12/07/2013 04:48 PM, H.J. Lu wrote:
> Hi,
>
> I have been seeing 3 libstdc++ tests:
>
> FAIL: 17_intro/headers/c++200x/stdc+
> +.cc (test for excess errors)
> FAIL: 17_intro/headers/c++200x/stdc++_multiple_inclusion.cc (test for
> excess errors)
> FAIL: 30_threads/async/async.cc execution test
>
> fail/pass at random on a fast machine.  Is this expected?
Yes, do you like it? ;) Seriously, it's the first time I see this, maybe 
because my machines aren't so fast, but I don't see what the performance 
of the machine may have to do with the first two. Or are you only seeing 
it with highly parallel make checks? Thus does it have something to do 
with Jakub's recent tweaks? In any case, please provide more information 
and send all the messages having to do with the library to the library 
mailing list too. Jon may want to investigate the 
30_threads/async/async.cc fail: I understand it happens only with -m32, 
right?

Thanks,
Paolo.