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bug#17168: 24.3.50; Segfault at mark_object
From: |
Dmitry Antipov |
Subject: |
bug#17168: 24.3.50; Segfault at mark_object |
Date: |
Thu, 03 Apr 2014 10:59:50 +0400 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.4.0 |
Hopefully I found the way to catch bogus object in 'function' slot
of a Lisp_Symbol. 100% reproducible for me, as of bzr revision 116934.
1. Apply this patch.
2. Compile with -O0 -g3 and --enable-checking.
3. Run 'emacs -Q', then M-x byte-force-recompile
/path/to/trunk/lis/org
4. Crash ==>
#0 0x000000379220f62b in raise (sig=6) at
../nptl/sysdeps/unix/sysv/linux/pt-raise.c:37
#1 0x0000000000569aff in terminate_due_to_signal (sig=6,
backtrace_limit=2147483647) at ../../trunk/src/emacs.c:382
#2 0x00000000005f089a in die (
msg=0x70f498 "SYMBOLP (sym->s.function) || CONSP (sym->s.function) || COMPILEDP
(sym->s.function) || SUBRP (sym->s.function)",
file=0x70e420 "../../trunk/src/alloc.c", line=6613) at
../../trunk/src/alloc.c:6913
#3 0x00000000005f00b5 in sweep_symbols () at ../../trunk/src/alloc.c:6610
#4 0x00000000005f03bb in gc_sweep () at ../../trunk/src/alloc.c:6735
#5 0x00000000005ede1e in Fgarbage_collect () at ../../trunk/src/alloc.c:5632
#6 0x0000000000567706 in maybe_gc () at ../../trunk/src/lisp.h:4520
#7 0x000000000065b95f in exec_byte_code (bytestr=..., vector=...,
maxdepth=..., args_template=..., nargs=2, args=0x7fff66de7f70)
at ../../trunk/src/bytecode.c:954
[...next frames probably irrelevant...]
Dmitry
bug17168_bogus_function_eassert.patch
Description: Text Data
- bug#17168: 24.3.50; Segfault at mark_object, (continued)
- bug#17168: 24.3.50; Segfault at mark_object, Dmitry Antipov, 2014/04/02
- bug#17168: 24.3.50; Segfault at mark_object, Daniel Colascione, 2014/04/02
- bug#17168: 24.3.50; Segfault at mark_object, Daniel Colascione, 2014/04/02
- bug#17168: 24.3.50; Segfault at mark_object, Nicolas Richard, 2014/04/02
- bug#17168: 24.3.50; Segfault at mark_object, Daniel Colascione, 2014/04/02
- bug#17168: 24.3.50; Segfault at mark_object, Stefan Monnier, 2014/04/02
- bug#17168: 24.3.50; Segfault at mark_object, Daniel Colascione, 2014/04/02
- bug#17168: 24.3.50; Segfault at mark_object, Eli Zaretskii, 2014/04/02
- bug#17168: 24.3.50; Segfault at mark_object, Daniel Colascione, 2014/04/02
- bug#17168: 24.3.50; Segfault at mark_object, Eli Zaretskii, 2014/04/02
- bug#17168: 24.3.50; Segfault at mark_object,
Dmitry Antipov <=
- bug#17168: 24.3.50; Segfault at mark_object, Dmitry Antipov, 2014/04/03
- bug#17168: 24.3.50; Segfault at mark_object, Daniel Colascione, 2014/04/03
- bug#17168: 24.3.50; Segfault at mark_object, Daniel Colascione, 2014/04/03
- bug#17168: 24.3.50; Segfault at mark_object, Dmitry Antipov, 2014/04/03
- bug#17168: 24.3.50; Segfault at mark_object, Stefan Monnier, 2014/04/03
- bug#17168: 24.3.50; Segfault at mark_object, Daniel Colascione, 2014/04/03
- bug#17168: 24.3.50; Segfault at mark_object, Dmitry Antipov, 2014/04/03
- bug#17168: 24.3.50; Segfault at mark_object, Daniel Colascione, 2014/04/03
- bug#17168: 24.3.50; Segfault at mark_object, Stefan Monnier, 2014/04/03
- bug#17168: 24.3.50; Segfault at mark_object, Daniel Colascione, 2014/04/03