Emacs crashing on C-x C-g

[Ryan Johnson]

On 24/10/2012 5:01 PM, Ken Brown wrote:
> On 10/24/2012 9:09 AM, Ryan Johnson wrote:
>> On 01/10/2012 4:08 PM, Ryan Johnson wrote:
>>  > On 01/10/2012 3:07 PM, Ken Brown wrote:
>>  >> On 10/1/2012 2:51 PM, Ryan Johnson wrote:
>>  >>> I'm hitting a strange behavior with emacs lately, where hitting
>>  >>> C-x C-g [1] sometimes causes it to quit instantly: no request to
>>  >>> save files, no seg fault, no error message, just gone (have to
>>  >>> reset the terminal to clear out emacs' ncurses settings). It
>>  >>> invariably happens after I've been away from the terminal for a
>>  >>> while (days) and then come back use it again.
>>  >>>
>>  >>> has anyone else had this happen to them?
>>  >> I haven't seen it, and I do leave emacs running for days or weeks.
>>  >> But I almost always run emacs under X, not in a terminal. Also, I
>>  >> generally use the latest Cygwin snapshot.  Have you tried that?
>>  >> Maybe you're being bitten by the /etc problem that Corinna fixed in
>>  >> late July (http://cygwin.com/ml/cygwin/2012-07/msg00666.html).
>>  > OK, I'll give the snapshot a try when I get a chance.
>>
>> Rats. I thought it was working, but the problem just it again. This time
>> the emacs session had just been created by a mercurial check-in (to edit
>> the changelog message) and crashed when I hit C-g to cancel an ESC I no
>> longer needed.

>> This time the crash is reproducible, and the test case below paints an
>> "interesting" story:

>> EDITOR='emacs -q -nw' hg ci
>> ESC C-g
>> <<<crash>>>
>> reset
>> <<<"reset is control-G (^G).">>>
>> EDITOR='emacs -q -nw' hg ci
>> C-g
>> <<<"interrupted!">>>
>> reset -i ^c
>> <<<no message>>>
>> cat
>> C-g
>> <<<"Quit (core dumped)">>>

> This looks like a known Emacs issue:
>
>   http://debbugs.gnu.org/cgi/bugreport.cgi?bug=12697
>
> I imagine it will be fixed before the release of Emacs 24.3.
Agree the initial part is emacs. But I suspect the confused bash 
business is not. ^G should either send SIGINT or not, this core dump 
thing is not cool.

Ryan


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