Re: Crash calling md5 for a list of buffers

[Dmitry Antipov]

Kevin Rodgers wrote:

> > I cannot reproduce that on GNU Emacs 21.3.1 (i386-pc-solaris2.7, X
> > toolkit) of 2003-04-24 on briard.  If I go to the emacs-21.3/src
> > directory, start Emacs as `./emacs-21.3.1 -q --no-site-file *.c',
> > then type `M-: (mapcar 'md5 (buffer-list)) RET', I get the following
> > *Backtrace*:
> >
> > Debugger entered--Lisp error: (args-out-of-range 1 459097)
> >   find-coding-systems-region-internal(1 459097)
> >  find-coding-systems-region(1 459097)
> >  select-safe-coding-system(1 459097 undecided-unix)
> >  md5(#<buffer xdisp.c>)
>
> Apparently that's because the xdisp.c buffer only has 459096 characters.
> Whether I visit it with find-file or find-file-literally, `M->' followed
> by `C-x =' reports "point=459097 of 459096 (100%) column 0".

Try to eval (mapcar '(lambda (b) (md5 b nil nil 'raw-text)) (buffer-list)).
(mapcar 'md5 (buffer-list)) doesn't work for all buffers (really I don't 
understand why - probably the coding system determined automagically is
not always valid for Fmd5).

Dmitry