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Re: patch to fileio.c

From: Chong Yidong
Subject: Re: patch to fileio.c
Date: Thu, 13 Nov 2008 10:43:42 -0500
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.0.60 (gnu/linux)

"Fabrice Popineau" <address@hidden> writes:

> [ I'm posting my answer here too.]
>> Thanks for the patch.  Your analysis sounds correct.
>> However, I would like to test it first.  Do you have a recipe for
>> demonstrating incorrect specpdl_ptr handling (e.g. a crash)?
> I compiled emacs with msvc, and it crashed all the time under the same
> circumstance.  Visit a file, modify it outside emacs, and try to
> re-visit it. Emacs will detect that it has been modified and will ask
> about reloading it. The fd is closed twice because of the
> unwind_protect.  With msvcrt.dll, the MS C library, this is a
> crash. I'm not sure that glibc is that picky. Possibly you won't see
> the problem. However, to make sure, and to test the patch, I added
> printf() statements at both places where fd can be closed, to trace
> what happened.

Does anyone else using Windows see this problem?

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