[MPlayer-users] VIA C3-2: Crash on dsp_init_mmx()
Guillaume POIRIER
poirierg at gmail.com
Sat May 12 20:09:25 CEST 2007
Hi,
On 5/12/07, Jan Schiefer <cheaterjs at gmx.de> wrote:
> Jan Schiefer schrieb:
> > Guillaume POIRIER schrieb:
> >> Hi,
> >>
> >> On 5/12/07, Jan Schiefer <cheaterjs at gmx.de> wrote:
> >>> Hi all,
> >>>
> >>> the newest revision 23304 ( FFMPEG rev 9005 ) crashes on dsp_init_mmx().
> >>> The bug was introduced after FFMEG rev. 8995.
> >>>
> >>> See: http://bugzilla.mplayerhq.hu/show_bug.cgi?id=822
> >> can you provide a GDB backtrace and a register dump?
> >>
> >> Guillaume
> >>
> >
> > It won't build for me if I do --enable-debug=1 or --enable-debug=3 (
> > --enable-debug=2 was not tested ).
> >
> > Greetings,
> > Jan Schiefer!
>
> However...
>
> (gdb) bt
> #0 0x08459576 in dsputil_init_mmx ()
> Cannot access memory at address 0xf7521a6c
> (gdb) disass $pc-32 $pc+32
> Dump of assembler code from 0x8459556 to 0x8459596:
> 0x08459556 <dsputil_init_mmx+9094>: (bad)
> 0x08459557 <dsputil_init_mmx+9095>: jne 0x8459573
> <dsputil_init_mmx+9123>
> 0x08459559 <dsputil_init_mmx+9097>: mov 0x20(%ebp),%eax
> 0x0845955c <dsputil_init_mmx+9100>: mov 0x24(%ebp),%edi
> 0x0845955f <dsputil_init_mmx+9103>: mov 0x28(%ebp),%esi
> 0x08459562 <dsputil_init_mmx+9106>: mov 0x2c(%ebp),%ebx
> 0x08459565 <dsputil_init_mmx+9109>: or %edi,%eax
> 0x08459567 <dsputil_init_mmx+9111>: or %esi,%eax
> 0x08459569 <dsputil_init_mmx+9113>: or %ebx,%eax
> 0x0845956b <dsputil_init_mmx+9115>: test $0xf,%al
> 0x0845956d <dsputil_init_mmx+9117>: je 0x84595fd
> <dsputil_init_mmx+9261>
> 0x08459573 <dsputil_init_mmx+9123>: mov 0x3c(%ebp),%edi
> 0x08459576 <dsputil_init_mmx+9126>: mov %edi,0x34(%esp)
> 0x0845957a <dsputil_init_mmx+9130>: mov 0x38(%ebp),%eax
> 0x0845957d <dsputil_init_mmx+9133>: mov %eax,0x30(%esp)
> 0x08459581 <dsputil_init_mmx+9137>: mov 0x34(%ebp),%edx
> 0x08459584 <dsputil_init_mmx+9140>: mov %edx,0x2c(%esp)
> 0x08459588 <dsputil_init_mmx+9144>: mov 0x30(%ebp),%ecx
> 0x0845958b <dsputil_init_mmx+9147>: mov %ecx,0x28(%esp)
> 0x0845958f <dsputil_init_mmx+9151>: mov 0x2c(%ebp),%edi
> ---Type <return> to continue, or q <return> to quit---
> 0x08459592 <dsputil_init_mmx+9154>: mov %edi,0x24(%esp)
> End of assembler dump.
> (gdb) info all-registers
> eax 0x7fffff 8388607
> ecx 0x68 104
> edx 0x7fff7ffc 2147450876
> ebx 0x79b1378c 2041657228
> esp 0xf7521a60 0xf7521a60
> ebp 0xbfe5b1e8 0xbfe5b1e8
> esi 0x2df0 11760
> edi 0xb6c2b144 -1228754620
> eip 0x8459576 0x8459576 <dsputil_init_mmx+9126>
> eflags 0x210206 [ PF IF RF ID ]
> cs 0x73 115
> ss 0x7b 123
> ds 0x7b 123
> es 0x7b 123
> fs 0x0 0
> gs 0x33 51
> st0 -nan(0xfffefffcfffefffc) (raw 0xfffffffefffcfffefffc)
> st1 -nan(0x2000400020004) (raw 0xffff0002000400020004)
> st2 -nan(0x262fffffa4e) (raw 0xffff00000262fffffa4e)
> st3 -nan(0x47020000493c) (raw 0xffff000047020000493c)
> st4 -nan(0xfffdfffcfffdfffc) (raw 0xfffffffdfffcfffdfffc)
> st5 1024.000030517578125 (raw 0x40098000004000000000)
> st6 0 (raw 0x00000000000000000000)
> ---Type <return> to continue, or q <return> to quit---
> st7 0 (raw 0x00000000000000000000)
> fctrl 0x37f 895
> fstat 0x120 288
> ftag 0xffff 65535
> fiseg 0x73 115
> fioff 0x80d05f3 135071219
> foseg 0x7b 123
> fooff 0xbfe5af78 -1075466376
> fop 0x15c 348
> xmm0 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0},
> v16_int8 = {0x0 <repeats 16 times>}, v8_int16 = {0x0, 0x0, 0x0, 0x0, 0x0,
> 0x0, 0x0, 0x0}, v4_int32 = {0x0, 0x0, 0x0, 0x0}, v2_int64 = {0x0, 0x0},
> uint128 = 0x00000000000000000000000000000000}
> xmm1 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0},
> v16_int8 = {0x0 <repeats 16 times>}, v8_int16 = {0x0, 0x0, 0x0, 0x0, 0x0,
> 0x0, 0x0, 0x0}, v4_int32 = {0x0, 0x0, 0x0, 0x0}, v2_int64 = {0x0, 0x0},
> uint128 = 0x00000000000000000000000000000000}
> xmm2 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0},
> v16_int8 = {0x0 <repeats 16 times>}, v8_int16 = {0x0, 0x0, 0x0, 0x0, 0x0,
> 0x0, 0x0, 0x0}, v4_int32 = {0x0, 0x0, 0x0, 0x0}, v2_int64 = {0x0, 0x0},
> uint128 = 0x00000000000000000000000000000000}
> xmm3 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0},
> v16_int8 = {0x0 <repeats 16 times>}, v8_int16 = {0x0, 0x0, 0x0, 0x0, 0x0,
> ---Type <return> to continue, or q <return> to quit---
> 0x0, 0x0, 0x0}, v4_int32 = {0x0, 0x0, 0x0, 0x0}, v2_int64 = {0x0, 0x0},
> uint128 = 0x00000000000000000000000000000000}
> xmm4 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0},
> v16_int8 = {0x0 <repeats 16 times>}, v8_int16 = {0x0, 0x0, 0x0, 0x0, 0x0,
> 0x0, 0x0, 0x0}, v4_int32 = {0x0, 0x0, 0x0, 0x0}, v2_int64 = {0x0, 0x0},
> uint128 = 0x00000000000000000000000000000000}
> xmm5 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0},
> v16_int8 = {0x0 <repeats 16 times>}, v8_int16 = {0x0, 0x0, 0x0, 0x0, 0x0,
> 0x0, 0x0, 0x0}, v4_int32 = {0x0, 0x0, 0x0, 0x0}, v2_int64 = {0x0, 0x0},
> uint128 = 0x00000000000000000000000000000000}
> xmm6 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0},
> v16_int8 = {0x0 <repeats 16 times>}, v8_int16 = {0x0, 0x0, 0x0, 0x0, 0x0,
> 0x0, 0x0, 0x0}, v4_int32 = {0x0, 0x0, 0x0, 0x0}, v2_int64 = {0x0, 0x0},
> uint128 = 0x00000000000000000000000000000000}
> xmm7 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0},
> v16_int8 = {0x0 <repeats 16 times>}, v8_int16 = {0x0, 0x0, 0x0, 0x0, 0x0,
> 0x0, 0x0, 0x0}, v4_int32 = {0x0, 0x0, 0x0, 0x0}, v2_int64 = {0x0, 0x0},
> uint128 = 0x00000000000000000000000000000000}
> mxcsr 0x1f80 [ IM DM ZM OM UM PM ]
> mm0 {uint64 = 0xfffefffcfffefffc, v2_int32 = {0xfffefffc,
> 0xfffefffc}, v4_int16 = {0xfffc, 0xfffe, 0xfffc, 0xfffe}, v8_int8 =
> {0xfc,
> 0xff, 0xfe, 0xff, 0xfc, 0xff, 0xfe, 0xff}}
> mm1 {uint64 = 0x2000400020004, v2_int32 = {0x20004, 0x20004},
> ---Type <return> to continue, or q <return> to quit---
> v4_int16 = {0x4, 0x2, 0x4, 0x2}, v8_int8 = {0x4, 0x0, 0x2, 0x0, 0x4, 0x0,
> 0x2, 0x0}}
> mm2 {uint64 = 0x262fffffa4e, v2_int32 = {0xfffffa4e, 0x262},
> v4_int16 = {0xfa4e, 0xffff, 0x262, 0x0}, v8_int8 = {0x4e, 0xfa, 0xff,
> 0xff,
> 0x62, 0x2, 0x0, 0x0}}
> mm3 {uint64 = 0x47020000493c, v2_int32 = {0x493c, 0x4702},
> v4_int16 = {0x493c, 0x0, 0x4702, 0x0}, v8_int8 = {0x3c, 0x49, 0x0,
> 0x0, 0x2,
> 0x47, 0x0, 0x0}}
> mm4 {uint64 = 0xfffdfffcfffdfffc, v2_int32 = {0xfffdfffc,
> 0xfffdfffc}, v4_int16 = {0xfffc, 0xfffd, 0xfffc, 0xfffd}, v8_int8 =
> {0xfc,
> 0xff, 0xfd, 0xff, 0xfc, 0xff, 0xfd, 0xff}}
> mm5 {uint64 = 0x8000004000000000, v2_int32 = {0x0, 0x80000040},
> v4_int16 = {0x0, 0x0, 0x40, 0x8000}, v8_int8 = {0x0, 0x0, 0x0, 0x0, 0x40,
> 0x0, 0x0, 0x80}}
> mm6 {uint64 = 0x0, v2_int32 = {0x0, 0x0}, v4_int16 = {0x0, 0x0,
> 0x0, 0x0}, v8_int8 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}}
> mm7 {uint64 = 0x0, v2_int32 = {0x0, 0x0}, v4_int16 = {0x0, 0x0,
> 0x0, 0x0}, v8_int8 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}}
I see nothing wrong in the code here....
Guillaume
--
Rich, you're forgetting one thing here: *everybody* except you is
stupid.
Måns Rullgård
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