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bug#29031: 25.3; Segmentation fault when starting emacs with my config
From: |
Eli Zaretskii |
Subject: |
bug#29031: 25.3; Segmentation fault when starting emacs with my config |
Date: |
Mon, 30 Oct 2017 21:28:54 +0200 |
> From: Kaushal Modi <kaushal.modi@gmail.com>
> Date: Mon, 30 Oct 2017 19:18:11 +0000
> Cc: 29031@debbugs.gnu.org
>
> I hate to say this, but I lost that gdb session. I am still able to
> consistently segfault on startup (when I load
> nlinum in after-init-hook). But this time, it's at a different point. Sorry
> about that.
>
> Thread 1 "emacs" received signal SIGSEGV, Segmentation fault.
> 0x00000033e307a13c in _int_malloc () from /lib64/libc.so.6
> (gdb) bt
> #0 0x00000033e307a13c in _int_malloc () from /lib64/libc.so.6
> #1 0x00000033e307ab1c in malloc () from /lib64/libc.so.6
> #2 0x00000000005464ee in lmalloc (size=8188) at alloc.c:1414
> #3 lisp_malloc (nbytes=<optimized out>, type=MEM_TYPE_NON_LISP) at
> alloc.c:1063
> #4 0x0000000000547bef in allocate_string_data (s=0x4fd6600, nchars=369,
> nbytes=370) at alloc.c:1998
> #5 0x0000000000547dc7 in make_uninit_multibyte_string (nchars=369,
> nbytes=370) at alloc.c:2513
> #6 0x000000000056ab9b in concat (nargs=25, args=0x7fffffff1750,
> target_type=<optimized out>,
> last_special=<optimized out>) at fns.c:637
Looks like some problem with memory allocation. Could be a duplicate
of bug#29066?
Anyway, with memory allocation bugs, a tiny change in the recipe can
make the bug go away, so I don't think the evidence you collected till
now can tell us anything useful, except that this is a Heisenbug of
sorts.
Maybe someone else will have an idea for how to debug this further.
- bug#29031: 25.3; Segmentation fault when starting emacs with my config, (continued)
- bug#29031: 25.3; Segmentation fault when starting emacs with my config, Eli Zaretskii, 2017/10/30
- bug#29031: 25.3; Segmentation fault when starting emacs with my config, Kaushal Modi, 2017/10/30
- bug#29031: 25.3; Segmentation fault when starting emacs with my config, Eli Zaretskii, 2017/10/31
- bug#29031: 25.3; Segmentation fault when starting emacs with my config, Kaushal Modi, 2017/10/31
- bug#29031: 25.3; Segmentation fault when starting emacs with my config, Eli Zaretskii, 2017/10/31
bug#29031: 25.3; Segmentation fault when starting emacs with my config, Eli Zaretskii, 2017/10/30