Your bug report

#16586: grep: infinite loop in grep -P on some files with invalid UTF-8 sequences

which was filed against the grep package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 16586@debbugs.gnu.org.

-- 
16586: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=16586
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