I/O error with v4l2

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Hi, I'm using kernel-2.4.22 with saa7134-0.2.8. When I
start the zapping to watch TV. It always displays the
following things.
Using video device '/dev/video0', display ':0.0'.
Querying frame buffer parameters from DGA.
Using V4L2 2.5 interface.
Setup completed.
I/O error #5 in decoding thread:
V4L/V4L2 VBI interface: Failed to read from the device
Aborting.
cap: read(): [tveng25.c] p_tveng25_dqbuf (line 1472)
VIDIOC_DQBUF failed: Input/output error

The following is the "dmesg"
Linux video capture interface: v1.00
i2c-core.o: i2c core module
saa7130/34: v4l2 driver version 0.2.8 loaded
saa7134[0]: found at 02:01.0, rev: 1, irq: 21,
latency: 32, mmio: 0xfa004000
saa7134[0]: subsystem: 5168:0138, board: LifeView
FlyVIDEO3000 [card=2,insmod option]
i2c-core.o: adapter saa7134[0] registered as adapter
0.
saa7134[0]: i2c eeprom 00: 68 51 38 01 10 28 ff ff ff
ff ff ff ff ff ff ff
saa7134[0]: i2c eeprom 10: ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff
saa7134[0]: i2c eeprom 20: ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff
saa7134[0]: i2c eeprom 30: ff ff ff ff ff ff ff ff ff
ff ff ff ff ff ff ff
saa7134[0]: board init: gpio is 39000
i2c-core.o: driver i2c TV tuner driver registered.
tuner: chip found @ 0xc2
tuner: type set to 5 (Philips PAL_BG (FI1216 and
compatibles))
i2c-core.o: client [Philips PAL_BG (FI1216 and comp]
registered to adapter [saa7134[0]](pos. 0).
saa7134[0]: registered device video0 [v4l2]
saa7134[0]: registered device vbi0
saa7134[0]: registered device radio0
saa7134[0]: registered device dsp1
saa7134[0]: registered device mixer1
saa7134[0]/audio: audio carrier scan failed, using
5.500 MHz [default]
tuner: tv freq set to 567.25
tuner: tv 0x25 0xe3 0x8e 0x30
tuner: tv freq set to 567.25
tuner: tv 0x25 0xe3 0x8e 0x30
tuner: tv freq set to 561.25
tuner: tv 0x25 0x83 0x8e 0x30
tuner: tv freq set to 561.25
tuner: tv 0x25 0x83 0x8e 0x30
tuner: tv freq set to 561.25
tuner: tv 0x25 0x83 0x8e 0x30
tuner: tv freq set to 561.25
tuner: tv 0x25 0x83 0x8e 0x30
tuner: tv freq set to 555.25
tuner: tv 0x25 0x23 0x8e 0x30
saa7134[0]/audio: audio carrier scan failed, using
6.000 MHz [last detected]
tuner: tv 0x25 0x23 0x8e 0x30
tuner: tv 0x25 0x23 0x8e 0x30
[drm:radeon_unlock] *ERROR* Process 4429 using kernel
context 0
cdrom: This disc doesn't have any tracks I recognize!
cdrom: This disc doesn't have any tracks I recognize!
tuner: tv 0x25 0x23 0x8e 0x30
tuner: tv 0x25 0x23 0x8e 0x30
tuner: tv 0x25 0x23 0x8e 0x30
tuner: tv 0x25 0x23 0x8e 0x30
tuner: tv 0x25 0x23 0x8e 0x30
tuner: tv 0x25 0x23 0x8e 0x30
tuner: tv 0x25 0x23 0x8e 0x30
tuner: tv 0x25 0x23 0x8e 0x30
tuner: tv 0x25 0x23 0x8e 0x30
tuner: tv 0x25 0x23 0x8e 0x30
tuner: tv 0x25 0x23 0x8e 0x30
tuner: tv freq set to 555.25
tuner: tv 0x25 0x23 0x8e 0x30
tuner: tv freq set to 555.25
tuner: tv 0x25 0x23 0x8e 0x30
tuner: tv freq set to 555.25
tuner: tv 0x25 0x23 0x8e 0x30
tuner: tv freq set to 555.25
tuner: tv 0x25 0x23 0x8e 0x30
tuner: tv freq set to 549.25
tuner: tv 0x24 0xc3 0x8e 0x30
tuner: tv freq set to 549.25
tuner: tv 0x24 0xc3 0x8e 0x30
tuner: tv freq set to 549.25
tuner: tv 0x24 0xc3 0x8e 0x30
tuner: tv freq set to 549.25
tuner: tv 0x24 0xc3 0x8e 0x30
tuner: tv freq set to 549.25
tuner: tv 0x24 0xc3 0x8e 0x30
tuner: tv 0x24 0xc3 0x8e 0x30
tuner: tv 0x24 0xc3 0x8e 0x30

Thanks~

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