On 08/20/2011 10:49 PM, Ronald S. Bultje wrote:
> Hi,
>
> On Sat, Aug 20, 2011 at 1:48 PM, Farkas Levente <[email protected]> wrote:
>> hi,
>> when i build gstreamer-ffmpeg (which contains libav) it's always
>> segfault with this bt:
>> any tip or solution?
>>
>> Program received signal SIGSEGV, Segmentation fault.
>> [Switching to Thread 844.0xae8]
>> 0x02912a02 in clear_blocks_sse (blocks=0x23b7858)
>> at
>> /builddir/build/BUILD/gst-ffmpeg-0.10.12/gst-libs/ext/libav/libavcodec/x8
>> 6/dsputil_mmx.c:539
>> 539
>> /builddir/build/BUILD/gst-ffmpeg-0.10.12/gst-libs/ext/libav/libavcodec/x
>> 86/dsputil_mmx.c: No such file or directory.
>> in
>> /builddir/build/BUILD/gst-ffmpeg-0.10.12/gst-libs/ext/libav/libavcode
>> c/x86/dsputil_mmx.c
>> (gdb) bt
>> #0 0x02912a02 in clear_blocks_sse (blocks=0x23b7858)
>> at
>> /builddir/build/BUILD/gst-ffmpeg-0.10.12/gst-libs/ext/libav/libavcodec/x8
>> 6/dsputil_mmx.c:539
>
> Can you provide the output of "disass", "info all-registers"?
Dump of assembler code for function clear_blocks_sse:
0x029229f0 <+0>: mov 0x4(%esp),%edx
0x029229f4 <+4>: add $0x300,%edx
0x029229fa <+10>: xorps %xmm0,%xmm0
0x029229fd <+13>: mov $0xfffffd00,%eax
=> 0x02922a02 <+18>: movaps %xmm0,(%edx,%eax,1)
0x02922a06 <+22>: movaps %xmm0,0x10(%edx,%eax,1)
0x02922a0b <+27>: movaps %xmm0,0x20(%edx,%eax,1)
0x02922a10 <+32>: movaps %xmm0,0x30(%edx,%eax,1)
0x02922a15 <+37>: movaps %xmm0,0x40(%edx,%eax,1)
0x02922a1a <+42>: movaps %xmm0,0x50(%edx,%eax,1)
0x02922a1f <+47>: movaps %xmm0,0x60(%edx,%eax,1)
0x02922a24 <+52>: movaps %xmm0,0x70(%edx,%eax,1)
0x02922a29 <+57>: add $0x80,%eax
0x02922a2e <+62>: js 0x2922a02 <clear_blocks_sse+18>
0x02922a30 <+64>: ret
End of assembler dump.
(gdb) info all-registers
eax 0xfffffd00 -768
ecx 0x0 0
edx 0x23c6358 37512024
ebx 0x238ef20 37285664
esp 0x36ef51c 0x36ef51c
ebp 0x2485190 0x2485190
esi 0x27 39
edi 0x1 1
eip 0x2922a02 0x2922a02 <clear_blocks_sse+18>
eflags 0x210202 [ IF RF ID ]
cs 0x23 35
ss 0x2b 43
ds 0x2b 43
es 0x2b 43
fs 0x53 83
gs 0x2b 43
st0 -nan(0x0ebebebeb) (raw 0xffff00000000ebebebeb)
st1 -nan(0x5000500050005) (raw 0xffff0005000500050005)
st2 -nan(0x0f2f2f2f2) (raw 0xffff00000000f2f2f2f2)
st3 -nan(0x3000300030003) (raw 0xffff0003000300030003)
st4 -nan(0xffffffffffffffff) (raw 0xffffffffffffffffffff)
st5 -nan(0x4000400040004) (raw 0xffff0004000400040004)
st6 -nan(0x20002000200020) (raw 0xffff0020002000200020)
st7 -inf (raw 0xffff0000000000000000)
fctrl 0x27f 639
fstat 0x20 32
ftag 0xaaaa 43690
fiseg 0x23 35
fioff 0x25e2c48 39726152
foseg 0x2b 43
fooff 0x36ef848 57604168
fop 0x59d 1437
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,
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 = 0xebebebeb, v2_int32 = {0xebebebeb, 0x0},
v4_int16 = {0xebeb, 0xebeb, 0x0, 0x0}, v8_int8 = {0xeb, 0xeb, 0xeb, 0xeb,
0x0, 0x0, 0x0, 0x0}}
mm1 {uint64 = 0x5000500050005, v2_int32 = {0x50005, 0x50005},
v4_int16 = {0x5, 0x5, 0x5, 0x5}, v8_int8 = {0x5, 0x0, 0x5, 0x0, 0x5, 0x0,
0x5, 0x0}}
mm2 {uint64 = 0xf2f2f2f2, v2_int32 = {0xf2f2f2f2, 0x0},
v4_int16 = {0xf2f2, 0xf2f2, 0x0, 0x0}, v8_int8 = {0xf2, 0xf2, 0xf2, 0xf2,
0x0, 0x0, 0x0, 0x0}}
mm3 {uint64 = 0x3000300030003, v2_int32 = {0x30003, 0x30003},
v4_int16 = {0x3, 0x3, 0x3, 0x3}, v8_int8 = {0x3, 0x0, 0x3, 0x0, 0x3, 0x0,
0x3, 0x0}}
mm4 {uint64 = 0xffffffffffffffff, v2_int32 = {0xffffffff,
0xffffffff}, v4_int16 = {0xffff, 0xffff, 0xffff, 0xffff}, v8_int8 = {
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff}}
mm5 {uint64 = 0x4000400040004, v2_int32 = {0x40004, 0x40004},
v4_int16 = {0x4, 0x4, 0x4, 0x4}, v8_int8 = {0x4, 0x0, 0x4, 0x0, 0x4, 0x0,
0x4, 0x0}}
mm6 {uint64 = 0x20002000200020, v2_int32 = {0x200020, 0x200020},
v4_int16 = {0x20, 0x20, 0x20, 0x20}, v8_int8 = {0x20, 0x0, 0x20, 0x0,
0x20,
0x0, 0x20, 0x0}}
mm7 {uint64 = 0x0, v2_int32 = {0x0, 0x0}, v4_int16 = {0x0, 0x0,
0x0, 0x0}, v8_int8 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}}
--
Levente "Si vis pacem para bellum!"
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