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Re: [bug-gawk] incorrect checksum for freed object ... Abort trap: 6 ...

From: Hermann Peifer
Subject: Re: [bug-gawk] incorrect checksum for freed object ... Abort trap: 6 ... fatal error: internal error: segfault
Date: Wed, 11 Mar 2015 20:56:10 +0100
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:31.0) Gecko/20100101 Thunderbird/31.5.0

On 2015-03-11 19:38, Aharon Robbins wrote:

Thanks for the report.

Valgrind shows a problem under Linux.  The patch below fixes it, and also
makes the profiled/pretty-printed output look normal when using -M. Can
you try it out before I push it? (Save the patch to a file, then use

        patch -p1 < the-file

and rebuild.)

The patch is relative to gawk-4.1-stable but should work on master as well.

May I add your test program and data file to the test suite?


Thanks for the fix: all errors are gone, after applying the patch to master. There is actually no difference in the profiles (generated by gawk/master).

The test program was never meant to be serious gawk code that would go into a serious test suite, but if you find it helpful: please take it. I just noted that RS is defined twice in the BEGIN clause, which looks silly. The first assignment should be dropped. The data file is essentially hand-made by myself, following NOAA specs, so it can be used without any restrictions.


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