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bug#13262: 24.3.50; crash when multibyte directory name completion.


From: Eli Zaretskii
Subject: bug#13262: 24.3.50; crash when multibyte directory name completion.
Date: Mon, 24 Dec 2012 23:20:23 +0200

> Date: Mon, 24 Dec 2012 19:21:10 +0100
> From: martin rudalics <rudalics@gmx.at>
> 
>  > Sorry, the changes touch quite a few places, but they all had the same
>  > problem: unwarranted assumptions that input Lisp strings passed to
>  > primitives are multibyte.  The crash happened because file completion
>  > calls directory-file-name with a unibyte string (an encoded file
>  > name).  A similar mess was found and fixed in file-name-directory and
>  > in expand-file-name.
> 
> There's a crash I can reproduce easily but only randomly with my setup
> and not with emacs -Q (backtrace with actual trunk).  Can it be related?

No.  The changes were all made in functions that manipulate file
names, not something even remotely related to redisplay.

Any chance of a recipe?  Also, what data causes the crash?





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