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http://bugs.wireshark.org/bugzilla/show_bug.cgi?id=1011

           Summary: Dissectors crash when wireshark is built with -DNDEBUG
           Product: Wireshark
           Version: 0.99.0
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: Normal
          Priority: Low
         Component: Wireshark
        AssignedTo: wireshark-bugs@xxxxxxxxxxxxx
        ReportedBy: zlynx@xxxxxxx


The exact version is what Gentoo calls wireshark-0.99.2.
The exact system is Gentoo Linux 64-bit (amd64).

I generally compile with -DNDEBUG defined in CFLAGS.  After building Wireshark,
it would immediately seg-fault.  I knew it had to be me, since none of you
wouldn't release software that didn't work at all. :)

It appears that the code in tools/lemon/lempar.c that does this:
    memset(&yygotominor, 0, sizeof(yygotominor));
is needed for more than debugging.

I am not 100% sure, but I think leaving out the memset opens the door for some
kind of bad data in the other NDEBUG section in lempar.c where:
    yymsp->minor = yygotominor

I fixed it by removing the NDEBUG ifdefs from the memset.  Patch will be
attached.


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