Subject: bug#16832: 24.3.50; Emacs goes crazy when deleting lines

From: Eli Zaretskii <[email-masked]>
Date: Tue, 25 Feb 2014 18:26:42 +0200

> From: "Fabrice Niessen" <[email-masked]>
> Cc: [email-masked]
> Date: Tue, 25 Feb 2014 10:58:32 +0100
> 
> > One thing to try is to set debug-on-quit to a non-nil value, repeat
> > the steps to reproduce the problem, then type C-g.  If all goes well,
> > you should see a Lisp backtrace that might shed some light on this.
> 
> Euh, that brought me once:
> 
> --8<---------------cut here---------------start------------->8---
> Debugger entered--Lisp error: (quit)
> --8<---------------cut here---------------end--------------->8---
> 
> Very disappointing in this case...
> 
> On other trials, C-g stays unresponsive: nothing happens, I can type
> 10's of them in a row, and Emacs still does not react.

Then try F12 (if you are on XP), or try attaching a debugger and
getting a C and Lisp backtrace.

Thanks.