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bug#11236: 24.1.50; Maximum buffer size exceeded

From: Peter Dyballa
Subject: bug#11236: 24.1.50; Maximum buffer size exceeded
Date: Sun, 15 Apr 2012 14:02:44 +0200

Am 13.04.2012 um 17:31 schrieb Eli Zaretskii:

Can you run under a debugger, but a breakpoint inside buffer_overflow,
and when it breaks, look around in make_gap_larger and see why exactly
this overflow happens?  E.g., what are the values of current_size and
of nbytes_added?  Please compile without optimizations, to make
debugging reliable.

The NS variant produces the failure when compiling with -fast. With - Os and less the build is OK. When I configure --with-wide-int the failure becomes:

        Loading window...
        Loading files...
        Loading cus-face...
        Loading faces...
        Loading button...
        Loading startup...
        Loading .../emacs-24.1.50/lisp/loaddefs.el (source)...

If I spend some time I can manually make Apple's GCC 4.2.1 to compile as with -fast, because all the switches are documented (-O3 plus many extras plus optimisation for the 64-bit G5 processor/IBM PowerPC 970 variants compensated by -mcpu=7450 -mtune=G4) and find out which switch causes the defect...



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