hello i have ffmpeg webcam streaming problem, i just want ot stream my webcam over the network

Code:
FFmpeg version SVN-r13582, Copyright (c) 2000-2008 Fabrice Bellard, et al.
  configuration: --prefix=/usr --libdir=${prefix}/lib --shlibdir=${prefix}/lib --bindir=${prefix}/bin --incdir=${prefix}/include/ffmpeg --enable-shared --e$
  libavutil version: 49.7.0
  libavcodec version: 51.58.0
  libavformat version: 52.16.0
  libavdevice version: 52.0.0
  libavfilter version: 0.0.0
  built on May  3 2009 12:02:42, gcc: 4.3.2
[video4linux2 @ 0xb783c640][3]Capabilities: 5000001
[video4linux2 @ 0xb783c640]The V4L2 driver changed the video from 352x288 to 320x240
[video4linux2 @ 0xb783c640]Buffer len [0] = 32768 != 115200
*** glibc detected *** ffmpeg: double free or corruption (!prev): 0x096ce690 ***
======= Backtrace: =========
/lib/i686/cmov/libc.so.6[0xb7067624]
/lib/i686/cmov/libc.so.6(cfree+0x96)[0xb7069826]
/usr/lib/i686/cmov/libavutil.so.49(av_free+0x1f)[0xb71998cf]
======= Memory map: ========
08048000-0805a000 r-xp 00000000 08:01 581087     /usr/bin/ffmpeg
0805a000-0805b000 rw-p 00012000 08:01 581087     /usr/bin/ffmpeg
0805b000-0805c000 rw-p 00000000 00:00 0
096b8000-096d9000 rw-p 00000000 00:00 0          [heap]
b6600000-b6621000 rw-p 00000000 00:00 0
b6621000-b6700000 ---p 00000000 00:00 0
b6717000-b671a000 rw-p 00000000 00:00 0
b671a000-b6721000 r-xp 00000000 08:01 139375     /lib/i686/cmov/librt-2.7.so
b6721000-b6723000 rw-p 00006000 08:01 139375     /lib/i686/cmov/librt-2.7.so
b6723000-b6727000 r-xp 00000000 08:01 236722     /usr/lib/libXdmcp.so.6.0.0
b6727000-b6728000 rw-p 00003000 08:01 236722     /usr/lib/libXdmcp.so.6.0.0
b6728000-b672c000 r-xp 00000000 08:01 314589     /usr/lib/libogg.so.0.5.3
b672c000-b672d000 rw-p 00003000 08:01 314589     /usr/lib/libogg.so.0.5.3
b672d000-b6782000 r-xp 00000000 08:01 239141     /usr/lib/liboil-0.3.so.0.3.0
b6782000-b6799000 rw-p 00055000 08:01 239141     /usr/lib/liboil-0.3.so.0.3.0
b6799000-b679b000 rw-p 00000000 00:00 0
b679b000-b67a7000 r-xp 00000000 08:01 130819     /lib/libgcc_s.so.1
b67a7000-b67a8000 rw-p 0000b000 08:01 130819     /lib/libgcc_s.so.1
.............
i was used ffmpeg -r 15 -s 352x288 -f video4linux2 -i /dev/video0 http://localhost:1234/livestream.ffm
and the config file of ffserver is:

Code:
Port 8090
BindAddress 0.0.0.0
MaxClients 1000
MaxBandwidth 1000
CustomLog -
NoDaemon

<Feed livestream.ffm>
File /tmp/livestream.ffm
FileMaxSize 200K
ACL allow 127.0.0.1
</Feed>

<Stream livestream.mpg>
Feed livestream.ffm
Format mpeg
AudioBitRate 32
AudioChannels 1
AudioSampleRate 44100
VideoBitRate 64
VideoBufferSize 40
VideoFrameRate 3
VideoSize 160x128
VideoGopSize 12
</Stream>

<Stream livestream.asf>
Feed livestream.ffm
Format asf
VideoFrameRate 15
VideoSize 352x240
VideoBitRate 256
VideoBufferSize 40
VideoGopSize 30
AudioBitRate 64
StartSendOnKey
</Stream>

<Stream stat.html>
Format status

ACL allow localhost
ACL allow 192.168.0.0 192.168.255.255

</Stream>

<Redirect index.html>
URL http://www.ffmpeg.org/
</Redirect>