Re: zsh 3.0.7 hogs memory

["Bart Schaefer" <schaefer@xxxxxxxxxxxxxxxxxxxxxxx>]

On Nov 30,  8:42am, James Kirkpatrick wrote:
} Subject: Re: zsh 3.0.7 hogs memory
}
} I tried the TRAPHUP and that does indeed seem to solve the problem.
} However, it seems more of an experiment than a true fix.

Yes.

} Does this give you enough to work towards a proper fix, or should I do
} more to characterize the problem (e.g. try one of the other two
} suggestions)?

Please try applying the patch and recompiling.  (And then be sure to remove
the TRAPHUP before you test it.)  The TRAPHUP experiment confirms that it's
a signal-handling issue rather than simply EOF-on-stdin, but it doesn't
entirely confirm my hypothesis about the SIGHUP loop.

Another thing that I just thought of:  It might be an interaction between
SIGHUP and SIGCHLD handlers; possibly saving of the histfile delays zsh's
exit just enough for the signal from the exiting Pine to arrive, or to
arrive in a different part of the shutdown.  (Anybody else have a guess?)

} > Index: Src/signals.c
} > ===================================================================
} > @@ -540,7 +540,8 @@
} >          if ((from_signal || i != thisjob) && (jobtab[i].stat & STAT_LOCKED) &&
} >              !(jobtab[i].stat & STAT_NOPRINT) &&
} >              !(jobtab[i].stat & STAT_STOPPED)) {
} > -            if (killpg(jobtab[i].gleader, SIGHUP) != -1)
} > +            if (jobtab[i].gleader != getpid() &&
} > +		killpg(jobtab[i].gleader, SIGHUP) != -1)
} >                  killed++;
} >          }
} >      if (killed)
} > 
} > I'll be a bit concerned about other signal-handling issues if that really
} > does fix it, though.

-- 
Bart Schaefer                                 Brass Lantern Enterprises
http://www.well.com/user/barts              http://www.brasslantern.com