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bug#15024: 24.3; Crash when editing pattern for Helm-for-files


From: Sebastien Vauban
Subject: bug#15024: 24.3; Crash when editing pattern for Helm-for-files
Date: Mon, 12 Aug 2013 10:46:44 +0200
User-agent: Gnus/5.130006 (Ma Gnus v0.6) Emacs/24.3.50 (windows-nt)

Eli Zaretskii wrote:
>> From: "Sebastien Vauban" <address@hidden>
>> Cc: address@hidden
>> Date: Thu, 08 Aug 2013 20:52:14 +0200
>> 
>> Eli Zaretskii wrote:
>> >> From: "Sebastien Vauban" <address@hidden>
>> >> Date: Mon, 05 Aug 2013 10:34:55 +0200
>> >> 
>> >> When editing the pattern of helm-for-files (trying to refine locate's 
>> >> results
>> >> -- using Everything, via Cygwin Bash), I got this crash:
>> >
>> > Does this happen frequently, or can you reproduce this?  If yes, I can
>> > give you instructions for investigating next time it happens.
>> 
>> Well, as it should happen again, yes, you can still give me instructions for
>> next time.
>
> Can you run Emacs under GDB at all times?

You mean the following, right?

$ cd /cygdrive/c/Program\ Files\ \(x86\)/emacs-trunk/bin
$ gdb emacs.exe
...
(gdb) r

BTW, is it `emacs.exe' or `runemacs.exe' I have to run?

Question: running it like that, or attaching GDB, is it different?

> If so, type this GDB command:
>
>   (gdb) set debugexceptions 1
>
> and let it run.

OK, I'll do.

> When the problem happens, I expect that GDB will show us the exception name
> (that's what the above setting is about), and it also might stop the program
> and show the real backtrace via "bt".
>
> If you cannot run Emacs under GDB, there's still a way to see at least
> the address where the exception happened, but if that address is
> inside some library function or Windows API, we will probably have
> hard time guessing which code of ours triggered that.  So please do
> try running under GDB.

Best regards,
  Seb

-- 
Sebastien Vauban





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