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Strange segfaults of gdb
- From: Michal Ludvig <mludvig at suse dot cz>
- To: gdb <gdb at sources dot redhat dot com>
- Date: Thu, 11 Apr 2002 18:12:33 +0200
- Subject: Strange segfaults of gdb
- Organization: SuSE CR
I've spent several days with chasing gdb segfaults on x86-64 but had no
luck. So I'm finally asking here for any suggestions, opinions, hints,
just anything that could move me forward.
The problem is, that when I print anything using a 'print' command, or
info or maybe some others, and then want to run or step the debugged
program, the gdb segfaults:
# ./gdb ~/mludvig/tst/xmmtest
GNU gdb 2002-04-04-cvs
This GDB was configured as "x86_64-unknown-linux-gnu"...
Setting up the environment for debugging gdb.
.gdbinit:3: Error in sourced command file:
Function "internal_error" not defined.
(gdb) br 10
Breakpoint 1 at 0x4004d8: file xmmtest.c, line 10.
Starting program: /root/mludvig/tst/xmmtest
Breakpoint 1, main () at xmmtest.c:10
10 printf("v1=%f, v2=%f, v3=%e\n", v1, v2, v3);
(gdb) p 1
$1 = 1
Segmentation fault (core dumped)
It doesn't matter which program I run, what I want to print and if I
then want invoke 'run', 'continue' or even 'si'. It segfaults. Core file
doesn't give any reasonable informations.
This segfault also happens when I leave 'set complaints 1' in .gdbinit
in sourcedir, run gdb from there and then try to run a debugged program.
Unfortunately it is perfectly reproductable :-(
Does anybody have an idea how print, set and step can be related?
I really don't know...
Thanks for any ideas
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