grep: Reporting Bugs

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1 6 Reporting bugs
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1 Bug reports can be found at the GNU bug report logs for ‘grep’
1 (http://debbugs.gnu.org/cgi/pkgreport.cgi?package=grep).  If you find a
1 bug not listed there, please email it to <bug-grep@gnu.org> to create a
1 new bug report.
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1 6.1 Known Bugs
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1 Large repetition counts in the ‘{n,m}’ construct may cause ‘grep’ to use
1 lots of memory.  In addition, certain other obscure regular expressions
1 require exponential time and space, and may cause ‘grep’ to run out of
1 memory.
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1    Back-references are very slow, and may require exponential time.
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