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bug#12703: segfault in 0x0000000100087491 in char_table_ref () at charta
From: |
Eli Zaretskii |
Subject: |
bug#12703: segfault in 0x0000000100087491 in char_table_ref () at chartab.c:233 (emacs-24.2.50.1, osx-10.8.2) |
Date: |
Mon, 22 Oct 2012 19:03:27 +0200 |
> From: Leif Walsh <leif.walsh@gmail.com>
> Date: Mon, 22 Oct 2012 11:13:35 -0400
>
> I am getting a pretty reproducible bug in my own build of
> emacs-24.2.50.1 on osx-10.8.2 with the "lion fullscreen patch" from
> somewhere.
>
> Build info:
>
> git://git.savannah.gnu.org/emacs.git@fbfb2416
> additional patch attached in fullscreen.patch
> config.log attached
Which bzr version is that? What is the last entry that you see in
src/ChangeLog?
> Steps to reproduce:
>
> 1. Install auto-complete-1.3.1 and
> git://github.com/brianjcj/auto-complete-clang
> 2. Visit a c++ file
> 3. Try completing some stuff
> 4. Segfaults after not too much messing around
>
> Backtrace:
>
> (gdb) bt
> #0 0x00007fff96242d46 in __kill ()
> #1 0x000000010009f63e in fatal_error_backtrace (sig=6,
> backtrace_limit=6) at emacs.c:331
> #2 0x00000001000bc5b3 in emacs_abort () at sysdep.c:1830
> #3 0x000000010018c73d in ns_term_shutdown (sig=<value temporarily
> unavailable, due to optimizations>) at nsterm.m:4229
> #4 0x000000010009f5f1 in fatal_error_backtrace (sig=11,
> backtrace_limit=10) at emacs.c:314
> #5 0x00000001000a1cde in handle_fatal_signal (sig=<value temporarily
> unavailable, due to optimizations>) at emacs.c:287
> #6 0x00000001000bc80d in handle_on_main_thread (sig=11,
> handler=0x1000a1cd0 <handle_fatal_signal>) at sysdep.c:1493
> #7 <signal handler called>
> #8 0x0000000100087491 in char_table_ref () at chartab.c:233
> #9 0x000000010016fadf in composition_compute_stop_pos
> (cmp_it=0x7fff5fbf2770, charpos=4195335, bytepos=5, endpos=4300718816,
> string=140734799751024) at composite.c:1053
> #10 0x000000010002e701 in compute_stop_pos (it=0x7fff5fbf4c40) at xdisp.c:3393
> #11 0x000000010002fdcb in next_element_from_string (it=0x7fff5fbf43d8)
> at xdisp.c:7525
A very similar bug #101159 was fixed a month ago in revision 110135.
If your Emacs is older than that, you need to update your sources and
rebuild.