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bug#25156: 26.0.50; `describe-text-properties' hangs with 100% cpu usage


From: Eli Zaretskii
Subject: bug#25156: 26.0.50; `describe-text-properties' hangs with 100% cpu usage when property is a char-table
Date: Sat, 10 Dec 2016 18:04:43 +0200

> From: address@hidden
> Cc: Eli Zaretskii <address@hidden>,  address@hidden
> Date: Sat, 10 Dec 2016 10:29:44 -0500
> 
> Neither of these hang for me from emacs -Q, using latest master (fc0fd24c105b)
> 
> (benchmark 1 '(describe-variable 'lisp-mode-syntax-table)) ;=> "Elapsed time: 
> 1.272053s (0.161946s in 6 GCs)"
> (benchmark 1 '(describe-property-list (list 'syntax-table 
> lisp-mode-syntax-table))) ;=> "Elapsed time: 1.165824s (0.139516s in 5 GCs)"

I get similar times here.





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