Date: Wed, 14 Jul 1999 21:57:58 -0400 (EDT) From: "Mark W. Krentel" <krentel@dreamscape.com> To: freebsd-stable@FreeBSD.ORG Subject: linux emulation seg fault Message-ID: <199907150157.VAA00610@dreamscape.com>
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I'm having trouble with the linux emulation in 3.2-release.
I've tried various things, but all I get is segmentation fault.
My machine dual boots between freebsd and linux. Freebsd is a fresh
install of 3.2-release from CD's. Linux is Red Hat 6.0.
I installed the linux_lib-2.6.1 port and turned on linux_enable="YES".
And indeed there's a tree below /usr/compat/linux, and kldstat reports
the linux module is installed. As I understand it, linux emulation
doesn't require anything special in the kernel, right?
In linux, I compile the "Hello, world" program. gcc -v reports:
gcc version egcs-2.91.66 19990314/Linux (egcs-1.1.2 release)
I reboot freebsd, copy the file, brand it, and I get:
% file a.out
a.out: ELF 32-bit LSB executable, Intel 80386, version 1 (Linux),
dynamically linked, not stripped
% ./a.out
Segmentation fault (core dumped)
% gdb a.out a.out.core
GNU gdb 4.18
...
This GDB was configured as "i386-unknown-freebsd"...
Core was generated by `a.out'.
Program terminated with signal 11, Segmentation fault.
/lib/libc.so.6: No such file or directory.
#0 0x0 in ?? ()
(gdb) bt
#0 0x0 in ?? ()
#1 0x80483bb in frame_dummy ()
#2 0x80482bd in _init ()
#3 0x2806c271 in ?? ()
(gdb)
I tried adding "options COMPAT_LINUX" to the kernel, but it had no
affect, still seg faults.
I tried compiling a linux static "Hello, world", and it works. So, I
guess that points to a shared lib problem.
I searched the mailling list archives and found a few other reports of
the same seg fault problem, mostly with freebsd 2.2.7 and Red Hat 5.0.
But oddly, I couldn't find a solution. The followups were either
"Works fine for me", or had suggestions that I've already tried.
So, what am I missing?
--Mark Krentel
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