Re: valgrind still unhappy despite expect changes

On Tue, Aug 30, 2011 at 06:19:38PM +0100, Jeremy Henty wrote:
> 
> Jorge Arellano Cid wrote:
> 
> > On Tue, Aug 30, 2011 at 12:34:59AM +0100, Jeremy Henty wrote:
> > > 
> > > I  compile Dillo  with  'configure "CFLAGS=-g  -O0" "CXXFLAGS=  -g
> > > -O0"' to minimise false positives from gcc optimization.
> > 
> >   Ack.
> > 
> >   Given you got  the log. Do you  have a way to reproduce  it, or at
> > least have a memory of what you were doing?
> 
> Unfortunately no.   I automatically run dillo inside  valgrind and log
> the output.  A cron job reads the logs and updates the reports.  These
> days I  rarely even look at  the logs unless something  in the mailing
> list prompts me to.
> 
> I am  wondering how to add  debugging information that  could help tie
> valgrind reports to Dillo's actions.   Perhaps the CCC could log which
> of its  chains is active and which  URL it was serving?   Then if dlib
> logged its allocations and frees  maybe we could identify the URL that
> was responsible?

  Even  having the URL wouldn't help much in this case because we
need  to  know  which  "cancel" action triggered the last call to
a_Nav_cancel_expect_if_eq().  This  would  require  logging  user
actions.

  OTOH,  trying  to  re-build  a user action pattern from the CCC
logs would be almost impossible for a human brain (if possible at
all). ;)

  More technically:

  Each  bw  has  its  own  nav_expect_url;  a  private  copy of a
DilloUrl. Valgrind complains about nav_expect_url, not the bw. So
I  wonder  how  can  the  bw be valid and not the nav_expect_url,
which is either NULL or a private copy of a DilloUrl?

-- 
  Cheers
  Jorge.-