Re: Emacs crashes in `ediff-inferior-compare-regions' when lazy-lock is on

[Gerd Moellmann]

Jens Schmidt <Jens.Schmidt@oracle.com> writes:

> In GNU Emacs 20.7.1 (i386-*-nt4.0.1381)
>  of Tue Jun 13 2000 on buffy
> configured using `configure NT'
> 

[...]

> Start emacs with the following .emacs:
> 
> ---.emacs---
> (global-font-lock-mode 1)
> (setq font-lock-support-mode 'lazy-lock-mode)
> ---.emacs---
> 
> Then do an `ediff-files' with the following files xxx.el and yyy.el:
> 
> ---xxx.el---
> (global-font-lock-mode 1)
> (identity t)
> (setq font-lock-support-mode 'lazy-lock-mode)
> ---xxx.el---
> 
> ---yyy.el---
> (global-font-lock-mode 1)
> (ignore)
> (setq font-lock-support-mode 'lazy-lock-mode)
> ---yyy.el---
> 
> Then use the following sequence to make Emacs crash:
> 
> n C-x 5 o
> C-SPC C-n
> C-x o
> C-SPC C-n
> C-x 5 o =
> 
> On Linux, Emacs just dies, on NT Dr. Watson pops up.  Attached is
> the drwtsn32.log.

Thanks for the report, Jens.  I think this is fixed in the coming
21.1.  When it is released, please check that it works and file
a new report when necessary.