Re: Version 3.37... (prg2lout crash)

[Mark Summerfield]

On 2008-09-24, Ludovic Courtès wrote:
> Mark Summerfield <address@hidden> writes:
> > I've also tried running in valgrind as per Ludovic's suggestion. The
> > crash occurs exactly as before with valgrind reporting 0 errors:
> >
> >
> > $ lout -r beginning run 5:
> > lout file "gra_tick" (from "gra" line 38, from "all" line 46):
> >    234,1: 23.7c object too high for 23.7c space; @Scale inserted
> > lout file "gra_summ" (from "gra" line 44, from "all" line 46):
> >     10,1: 25.7c object too high for 23.6c space; @Scale inserted
> > lout file "prg_embe" (from "prg" line 136, from "all" line 48):
> >    38,17: fatal error: failure (non-zero status) of filter:
> > prg2lout -r -lC                       -ilouti1 -olout1 -elout.err        
> >             -t8 -T8s ==6261==
> > ==6261== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 13 from 1)
> > ==6261== malloc/free: in use at exit: 403,578,783 bytes in 99,368 blocks.
> > ==6261== malloc/free: 353,380 allocs, 254,012 frees, 1,410,357,058 bytes
> > allocated.
> > ==6261== For counts of detected errors, rerun with: -v
> > ==6261== searching for pointers to 99,368 not-freed blocks.
>
> What is it that's running under Valgrind?  Only `prg2lout'?  If so, did
> you modify Lout's `prg' to run "valgrind prg2lout" instead of
> "prg2lout"?

The command line I used was:

    $ valgrind lout -r6 all > guide.ps

> For easier debugging, I'd recommend running only `prg2lout' (with the
> appropriate input file), as in:
>
>   $ valgrind prg2lout -r -lC -ilouti1 -olout1 -elout.err -t8 -T8s

Grrr, if I could do that I would! But how can I when those files are
generated by lout? (The reason the prg2lout output appeared above was
because I build prg2lout with one of the debug flags set to 1.)

> > I killed it at this point.
>
> Which process did you kill?  Why did you have to kill it?

I killed valgrind because my Kubuntu machine only have 500MB RAM and it
was grinding to a halt---I had to kill it from a different machine.

-- 
Mark Summerfield, Qtrac Ltd, www.qtrac.eu
    C++, Python, Qt, PyQt - training and consultancy
        "Rapid GUI Programming with Python and Qt" - ISBN 0132354187