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From: Mikhail Teterin <mi+mill@aldan.algebra.com>
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Date: Tue, 18 Mar 2008 18:50:45 -0400
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Subject: FreeBSD-4 executables on 7.x/amd64
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Hello!

I have a 7.0 system (amd64) and am trying to run a FreeBSD-4 executable.
It dies on startup with "bad system call". The core shows, that it is
simply trying to mmap something.

I have the following COMPAT-options enabled in my kernel:

options         COMPAT_43               # Needed by COMPAT_LINUX32
options         COMPAT_IA32             # Compatible with i386 binaries
options         COMPAT_FREEBSD4         # Compatible with FreeBSD4
options         COMPAT_LINUX32          # Compatible with i386 linux binaries

Should not that be enough? Thanks!

 -mi

(gdb) where
#0  0x284c65a4 in __syscall () from /opt/lib32/compat/libc_r.so.4
#1  0x285155af in mmap () from /opt/lib32/compat/libc_r.so.4
#2  0x285143a1 in _thread_leave_cancellation_point () from /opt/lib32/compat/libc_r.so.4
#3  0x28514ef6 in malloc () from /opt/lib32/compat/libc_r.so.4
#4  0x284db240 in _pq_alloc () from /opt/lib32/compat/libc_r.so.4
#5  0x284df1a6 in _thread_init () from /opt/lib32/compat/libc_r.so.4
#6  0x284deca7 in _get_curthread () from /opt/lib32/compat/libc_r.so.4
#7  0x284dc2f2 in pthread_mutex_lock () from /opt/lib32/compat/libc_r.so.4
#8  0x28468675 in __register_frame_info () from /opt/lib32/compat/libstdc++.so.3
#9  0x2849e8b2 in ?? () from /opt/lib32/compat/libc_r.so.4
#10 0x2852366c in _thread_autoinit_dummy_decl () from /opt/lib32/compat/libc_r.so.4
#11 0x28524720 in ?? () from /opt/lib32/compat/libc_r.so.4
#12 0x283732b4 in ?? ()
#13 0x2849e88c in ?? () from /opt/lib32/compat/libc_r.so.4
#14 0x283732b4 in ?? ()
#15 0x00000008 in ?? ()
#16 0xffffdbe4 in ?? ()
#17 0xffffda38 in ?? ()
#18 0x283732b4 in ?? ()
#19 0x2834e97b in ?? () from /usr/libexec/ld-elf.so.1
#20 0xffffda58 in ?? ()
#21 0x2849b61d in _init () from /opt/lib32/compat/libc_r.so.4
#22 0x283513af in _rtld_error () from /usr/libexec/ld-elf.so.1