Comment 2 for bug 23861

Doing disassembly with gdb for the given address (0xb78fa4fc):

0xb78fa4f7 <mgaInitState+412>: fmul %st(1),%st
0xb78fa4f9 <mgaInitState+414>: fstps 0xfffffff0(%ebp)
0xb78fa4fc <mgaInitState+417>: movss 0xfffffff0(%ebp),%xmm0
0xb78fa501 <mgaInitState+422>: cvttss2si %xmm0,%edx
0xb78fa505 <mgaInitState+426>: movzbl %dl,%edx
0xb78fa508 <mgaInitState+429>: shl $0x10,%edx

So it's about "movss" instruction in /usr/lib/dri/mga_dri.so which belongs to
package libgl1-mesa-dri:

lgb@oxygene:~$ dpkg -S /usr/lib/dri/mga_dri.so
libgl1-mesa-dri: /usr/lib/dri/mga_dri.so

I don't exactly know what type of CPU can execute this opcode, so maybe my (AMD
Duron) can't. However this fact does need
some correction unless we don't want support hw accel. 3d gfx on this kind of
CPU, it the problem really caused by the
lacking support for this opcode on this CPU ...

Please help me!