bug#15778: 24.3; cperl-mode causes emacs to lock up

[Eli Zaretskii]

> From: Nathan Trapuzzano <nbtrap@nbtrap.com>
> Date: Fri, 01 Nov 2013 07:19:13 -0400
> 
> cperl-mode causes emacs to lock up indefinitely.  I can't break the lock
> except by killing the process.
> 
> Steps to reproduce:
> 
> 1. Visit the attached file with cperl-mode.
> 2. Put the cursor at the beginning of line 44 ($$str =~ ...)
> 3. Type C-k (kill-line).  The line is not removed, and the cursor is
>    stuck.  C-g doesn't help.

Please attach a debugger and show the backtrace.  The file etc/DEBUG
explains how to look for a place that infloops, perhaps you could
follow that and provide a more detailed information.

Thanks.