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From: Rugxulo <rugxulo AT gmail DOT com>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: DOSEMU : sh -c "./configure" : hangs when making config.status
Date: Wed, 6 Jul 2011 15:19:41 -0700 (PDT)
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Reply-To: djgpp AT delorie DOT com

Hi,

On Jul 3, 2:22 pm, Eli Zaretskii <e DOT  DOT  DOT  AT gnu DOT org> wrote:
> > From: Juan Manuel Guerrero <juan DOT guerr DOT  DOT  DOT  AT gmx DOT de>
> > Date: Sun, 3 Jul 2011 18:03:38 +0200
>
> > malloc: dispose_cmd.c:226: assertion botched
> > free: start and end chunk sizes differ
> > Stopping myself...Abort!

Here's the relevant diff between 2.04 and 2.05b. I'm not totally
confident (obviously), but it does seem that 2.04 works more
frequently, at least in limited testing (with this specific example,
BRexx 2.1.9).

 /* Dispose of the command structure passed. */
 void
 dispose_command (command)
@@ -222,7 +224,11 @@
      WORD_DESC *w;
 {
   FREE (w->word);
+#if 0
   free (w);
+#else
+  ocache_free (wdcache, WORD_DESC, w);
+#endif
 }

I'm not exactly sure what that does or why (it says "object caching"
in ocache.h). The definition for FREE() is in general.h :

#define FREE(s)  do { if (s) free (s); } while (0)

The definition of ocache_free() says this :

#define ocache_free(c, otype, r) \
	do { \
		if ((c).nc < (c).cs) { \
			OC_MEMSET ((r), 0xdf, sizeof(otype)); \
			((otype **)((c).data))[(c).nc++] = (r); \
		} else \
			xfree (r); \
	} while (0)

> This is Bash deliberately aborting because of some internal
> consistency check.  You should be able to find the test on line 226 of
> dispose_cmd.c in the Bash sources.

Perhaps "--with-bash-malloc" (aka, --with-gnu-malloc) would help???
(he asked naively)

Or maybe "--with-minimal-config" would help? (You never know.)

I still don't like Bash, too complicated. (Though of course, when it
works, it's fine!) I'd rather we used Dash or something simpler, but
working around fork() (and the PATH differences and associated crud)
is the annoying part. Well, whatever, maybe one day I'll take a closer
look (don't hold your breath, heh, that's not saying much!).