Re: Hangs on redisplay_internal

[Eli Zaretskii]

On June 3, 2019 8:56:33 AM GMT+03:00, Eric Abrahamsen <address@hidden> wrote:
> I've been updating master every three or four days, and over the past
> week (more?) feel like I've been getting a lot of inexplicable hangs.
> They last as long as five or six seconds, but I can usually quit out
> of
> them. I started running with debug on quit as a matter of course, and
> just managed to kill one of them, and got:
> 
> Debugger entered--Lisp error: (quit)
>   redisplay_internal\ \(C\ function\)()
> 
> That's all that was in *Backtrace*.
> 
> I'm on Arch Linux, and haven't done anything special to the build
> process. I know this isn't very helpful, but maybe I can track down
> something more.

Run Emacs under GDB, and when Emacs habgs, stop it with SIGTSTP, as explained 
in etc/DEBUG.  Then get a more informative backtrace with the GDB's "bt" 
command.  Be sure to invoke GDB from the src directory, so that it will also 
show the Lisp backtrace.