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Date: Wed, 18 Jan 2006 15:10:07 +0800
From: Edwin <edwincheese@gmail.com>
To: freebsd-questions@freebsd.org
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Subject: ps "Bus error" under jail
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Hi,

The machine is running FreeBSD 6.0-RELEASE and i am trying out jails on it
I have followed the tutorial in jail's man page and everythings seems
working fine, except the ps command.
When I execute ps, it say "Bus error"
Here is the gdb output:

GNU gdb 6.1.1 [FreeBSD]
Copyright 2004 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you ar=
e
welcome to change it and/or distribute copies of it under certain condition=
s.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for details.
This GDB was configured as "i386-marcel-freebsd"...(no debugging
symbols found)...
Core was generated by `ps'.
Program terminated with signal 10, Bus error.
Reading symbols from /lib/libm.so.4...(no debugging symbols found)...done.
Loaded symbols for /lib/libm.so.4
Reading symbols from /lib/libkvm.so.3...(no debugging symbols found)...done=
.
Loaded symbols for /lib/libkvm.so.3
Reading symbols from /lib/libc.so.6...(no debugging symbols found)...done.
Loaded symbols for /lib/libc.so.6
Reading symbols from /libexec/ld-elf.so.1...(no debugging symbols found)...=
done.
Loaded symbols for /libexec/ld-elf.so.1
#0  0x28092398 in _kvm_initvtop () from /lib/libkvm.so.3
(gdb) backtrace
#0  0x28092398 in _kvm_initvtop () from /lib/libkvm.so.3
Cannot access memory at address 0xbfbfdc6c

Thanks
Edwin