[gillux@blatt ~]$ /usr/sbin/mplayer 
bash: /usr/sbin/mplayer: No such file or directory
[gillux@blatt ~]$ /usr/bin/mplayer 
Illegal instruction
[gillux@blatt ~]$ gdb /usr/bin/mplayer 
GNU gdb 6.8
Copyright (C) 2008 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "i686-pc-linux-gnu"...
(no debugging symbols found)
(gdb) Quit
(gdb) q
[gillux@blatt ~]$ /usr/bin/mplayer -v
Illegal instruction
[gillux@blatt ~]$ gdb /usr/bin/mplayer 
GNU gdb 6.8
Copyright (C) 2008 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "i686-pc-linux-gnu"...
(no debugging symbols found)
(gdb) r -v
Starting program: /usr/bin/mplayer -v
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[Thread debugging using libthread_db enabled]
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[New Thread 0xb6c2a730 (LWP 25712)]

Program received signal SIGILL, Illegal instruction.
[Switching to Thread 0xb6c2a730 (LWP 25712)]
0x081a11a9 in GetRelativeTime ()
(gdb) disass $pc-32 $pc+32
Dump of assembler code from 0x81a1189 to 0x81a11c9:
0x081a1189:     lea    0x0(%edi,%eiz,1),%edi
0x081a1190 <GetRelativeTime+0>: sub    $0x1c,%esp
0x081a1193 <GetRelativeTime+3>: call   0x81a1160 <GetTimer>
0x081a1198 <GetRelativeTime+8>: mov    %eax,%edx
0x081a119a <GetRelativeTime+10>:        sub    0x8864080,%edx
0x081a11a0 <GetRelativeTime+16>:        mov    %eax,0x8864080
0x081a11a5 <GetRelativeTime+21>:        movd   %edx,%xmm0
0x081a11a9 <GetRelativeTime+25>:        movq   %xmm0,0x8(%esp)
0x081a11af <GetRelativeTime+31>:        fildll 0x8(%esp)
0x081a11b3 <GetRelativeTime+35>:        fmuls  0x862da04
0x081a11b9 <GetRelativeTime+41>:        add    $0x1c,%esp
0x081a11bc <GetRelativeTime+44>:        ret    
0x081a11bd:     lea    0x0(%esi),%esi
0x081a11c0 <InitTimer+0>:       sub    $0xc,%esp
0x081a11c3 <InitTimer+3>:       call   0x81a1190 <GetRelativeTime>
0x081a11c8 <InitTimer+8>:       fstp   %st(0)
End of assembler dump.
(gdb) bt
#0  0x081a11a9 in GetRelativeTime ()
#1  0xb71bb7e8 in ?? ()
#2  0xb71bba98 in ?? ()
#3  0xb71bbd48 in ?? ()
#4  0xb70f9000 in ?? ()
#5  0xb70f92a8 in ?? ()
#6  0xb70f9558 in ?? ()
#7  0xb70f9808 in ?? ()
#8  0x081a11c8 in InitTimer ()
#9  0xb70f9d58 in ?? ()
#10 0xb8093548 in ?? ()
#11 0xb6eb0020 in ?? ()
#12 0x080994b7 in main ()
(gdb) q
The program is running.  Exit anyway? (y or n) y
[gillux@blatt ~]$ cat /proc/cpuinfo 
processor       : 0
vendor_id       : GenuineIntel
cpu family      : 6
model           : 8
model name      : Pentium III (Coppermine)
stepping        : 10
cpu MHz         : 796.611
cache size      : 256 KB
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 2
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 sep mtrr pge mca cmov pse36 mmx fxsr sse up
bogomips        : 1593.60
clflush size    : 32
power management: