bug#22394: New segfault

[Eli Zaretskii]

> From: Clément Pit--Claudel <clement.pit@gmail.com>
> Date: Sun, 17 Jan 2016 15:23:00 -0500
> 
> Here's a new segfault:
> 
> Program received signal SIGABRT, Aborted.
> 0x00007ffff130920b in raise (sig=sig@entry=6) at 
> ../nptl/sysdeps/unix/sysv/linux/pt-raise.c:37
> 37    ../nptl/sysdeps/unix/sysv/linux/pt-raise.c: No such file or directory.
> (gdb) backtrace
> #0  0x00007ffff130920b in raise (sig=sig@entry=6) at 
> ../nptl/sysdeps/unix/sysv/linux/pt-raise.c:37
> #1  0x00000000004eafc1 in terminate_due_to_signal (sig=sig@entry=6, 
> backtrace_limit=backtrace_limit@entry=40) at emacs.c:398
> #2  0x00000000005034e3 in emacs_abort () at sysdep.c:2217
> #3  0x00000000004a6e2f in bidi_cache_iterator_state 
> (bidi_it=bidi_it@entry=0x7fffffff5550, resolved=resolved@entry=true, 
> update_only=update_only@entry=false) at bidi.c:802
> #4  0x00000000004a8f11 in bidi_move_to_visually_next 
> (bidi_it=bidi_it@entry=0x7fffffff8ef8) at bidi.c:3385
> #5  0x0000000000443280 in set_iterator_to_next (it=it@entry=0x7fffffff8560, 
> reseat_p=reseat_p@entry=true) at xdisp.c:7362
> #6  0x000000000044bb51 in display_line (it=it@entry=0x7fffffff8560) at 
> xdisp.c:20878
> #7  0x000000000044e1f2 in try_window (window=window@entry=18838741, pos=..., 
> flags=flags@entry=1) at xdisp.c:17102
> #8  0x0000000000462a36 in redisplay_window (window=<optimized out>, 
> just_this_one_p=just_this_one_p@entry=false) at xdisp.c:16567
> #9  0x0000000000465b2b in redisplay_window_0 (window=window@entry=18838741) 
> at xdisp.c:14359
> #10 0x000000000055a949 in internal_condition_case_1 (bfun=bfun@entry=0x465b00 
> <redisplay_window_0>, arg=18838741, handlers=<optimized out>, 
>     hfun=hfun@entry=0x42c850 <redisplay_window_error>) at eval.c:1333
> #11 0x000000000043154e in redisplay_windows (window=18838741) at xdisp.c:14339
> #12 0x0000000000453379 in redisplay_internal () at xdisp.c:13899
> #13 0x0000000000454ee5 in redisplay () at xdisp.c:13132
> #14 0x00000000004f4bfb in read_char (commandflag=commandflag@entry=1, 
> map=map@entry=56857459, prev_event=0, 
> used_mouse_menu=used_mouse_menu@entry=0x7fffffffd8fb, 
>     end_time=end_time@entry=0x0) at keyboard.c:2466

Is this reproducible?  If so, please describe how to reproduce.

Thanks.