Subject: bug#17771: 24.3.91; SIGSEGV in cleanup_vector

From: Stephen Berman <[email-masked]>
Date: Fri, 13 Jun 2014 11:50:59 +0200

On Fri, 13 Jun 2014 12:41:56 +0300 Eli Zaretskii <[email-masked]> wrote:

>> From: Stephen Berman <[email-masked]>
>> Date: Fri, 13 Jun 2014 11:12:44 +0200
>> 
>> 
>> 0. emacs -Q
>> 1. C-h h (on my machine, it takes ~30 seconds for the Hello file to
>>    appear; during that time, do the following:)
>> 2. Type C-g repeatedly (I did it rapidly, for ~15 seconds).
>> 3. Emacs crashes, full backtrace below.  (This is reliably reproducible.)
>
> Not here, but this is Windows, where input is treated very
> differently.
>
>> Program received signal SIGSEGV, Segmentation fault.
>> 0x00000000005aa564 in cleanup_vector (vector=0x43b4ea8)
>>     at ../../../../bzr/emacs/emacs-24/src/alloc.c:2929
>> 2929          ((struct font *) vector)->driver->close ((struct font *) vector);
>
> So which one is the bad pointer, vector, vector->driver, or
> vector->driver->close?

If you're asking me, can you tell me what to type in gdb to find out?

Steve Berman