Re: Need some Unix and /bin/sh expertise for GCC testsuite

[Laurent GUERBY <laurent@guerby.net>]

On Fri, 2009-08-14 at 23:25 +0200, Ralf Wildenhues wrote:
> Hello,
> 
> * Laurent GUERBY wrote on Fri, Aug 14, 2009 at 10:52:35PM CEST:
> > => gcc/testsuite/ada/acats/run_all.sh
> 
> > 3/ Here is the point I find surprising: the "ps fauxww" run in the
> > second "if" show that even if the script is fully sequential
> > at least one gnatmake subprocess (collect-ld) is still marked as running 
> > *in parallel* with the ps command in the subsequent "if" of the script!
> 
> One thing I see in that script is there is a line
>   rm -rf $dir/tests.$$ &
> 
> that will be run "in parallel" due to the stray "&".  

This one is part of initialization done once well before the loop over
the tests, so I don't think it can interfere in any way (and my
"ps fauxww" log doesn't show it around).

> However, I also
> don't see at least parts of the rest of the script that you quote, so
> maybe I'm looking at the wrong version (looking at trunk) or you have
> added debug statements, so maybe yours has more such stray asynchronous
> lists.

Yes my quote is from my heavily instrumented run_all.sh. 

The svn clean run_all.sh will exhibit the random fail with the very same
error message in gcc/testsuite/ada/acats/acats.log so the
instrumentation doesn't change the failure mode.

Thanks for your help,

Laurent