bug#30182: Update

[Eli Zaretskii]

> From: Sujith <m.sujith@gmail.com>
> Cc: rudalics@gmx.at, 30182@debbugs.gnu.org
> Date: Sun, 21 Jan 2018 09:25:48 +0530
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> > Can you provide a backtrace from a non-optimized build, please?
> 
> Sorry, internet service problems. :-)

No need to apologize, thanks for helping us debug this problem.

> Thread 1 (Thread 0x7ffff7fabb00 (LWP 4601)):
> #0  0x0000000000559474 in XSETCAR (c=0x0, n=0x33b6815) at lisp.h:1318
> #1  0x0000000000616bf9 in concat (nargs=1, args=0x7fffffffc288, 
> target_type=Lisp_Cons, last_special=false) at fns.c:751
>         elt = 0x33b6815
>         thislen = 0x5a63f618
>         thisleni = 0
>         thisindex = 0
>         thisindex_byte = 0
>         val = 0x3ed42f3
>         tail = 0x0
>         this = 0x0
>         toindex = -1

Please show the output of these GDB commands:

 (gdb) source /path/to/emacs/src/.gdbinit
 (gdb) pp Vtimer_list

Thanks.