[MPlayer-users] Re: intel os x crash using window codecs

[Martin Simmons]

>>>>> On Fri, 1 Dec 2006 10:58:40 -0500, Dave Chand <devchan1 at bellsouth.net> said:
>
> On Nov 30, 2006, at 10:27 PM, Zuxy Meng wrote:
>
> > Could u do a disassem in gdb to see what the bad instruction is?
> 
> (gdb) disass $pc-32 $pc+32
> Dump of assembler code from 0x900373ed to 0x9003742d:
> 0x900373ed <nanosleep+157>:     punpckldq %xmm0,%xmm2
> 0x900373f1 <nanosleep+161>:     punpckldq 1258178(%ebx),%xmm2
> 0x900373f9 <nanosleep+169>:     movapd 1258194(%ebx),%xmm3
> 0x90037401 <nanosleep+177>:     subpd  %xmm3,%xmm2
> 0x90037405 <nanosleep+181>:     movapd %xmm2,%xmm0
> 0x90037409 <nanosleep+185>:     haddpd %xmm2,%xmm0
> 0x9003740d <nanosleep+189>:     movapd %xmm0,-72(%ebp)
> 0x90037412 <nanosleep+194>:     movsd  -72(%ebp),%xmm2
> 0x90037417 <nanosleep+199>:     movd   -28(%ebp),%xmm1
> 0x9003741c <nanosleep+204>:     movdqa %xmm4,%xmm0
> 0x90037420 <nanosleep+208>:     punpckldq %xmm1,%xmm0
> 0x90037424 <nanosleep+212>:     punpckldq 1258178(%ebx),%xmm0
> 0x9003742c <nanosleep+220>:     subpd  %xmm3,%xmm0
> End of assembler dump.
> (gdb) info all-registers
> eax            0x0      0
> ecx            0x0      0
> edx            0x0      0
> ebx            0x9003735e       -1878822050
> esp            0xbfffd1fc       0xbfffd1fc
> ebp            0xbfffd284       0xbfffd284
> esi            0xbfffd2a4       -1073753436
> edi            0xbfffd34c       -1073753268
> eip            0x9003740d       0x9003740d <nanosleep+189>
> eflags         0x210246 2163270
> cs             0x17     23
> ss             0x1f     31
> ds             0x1f     31
> es             0x1f     31
> fs             0x8f     143
> gs             0x37     55

Looks like a stack alignment problem to me -- the Intel Mac calling convention
requires 16 byte alignment of the stack before the call, which won't be
happening when a Win32 DLL makes calls to functions in loader/win32.c.

__Martin