TQ2440做移植手册实验的时候出现的问题

我在做移植手册上的实验的时候，先烧了一下zImage，这内核镜像是我自己按移植手册上一步步做的，然后做了yaffs文件系统，但启动的时候就停在如下信息就不动了：
0x00000000-0x00040000 : "EmbedSky_Board_uboot"
0x00200000-0x00600000 : "EmbedSky_Board_kernel"
0x00400000-0x0ff80000 : "EmbedSky_Board_yaffs2"
usbmon: debugfs is not available
s3c2410-ohci s3c2410-ohci: S3C24XX OHCI
s3c2410-ohci s3c2410-ohci: new USB bus registered, assigned bus number 1
s3c2410-ohci s3c2410-ohci: irq 42, io mem 0x49000000
usb usb1: configuration #1 chosen from 1 choice
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 2 ports detected
mice: PS/2 mouse device common for all mice
TQ2440/SKY2440 LEDS, (c) 2008,2009 www.embedsky.net
EmbedSky-buttons initialized
S3C24XX RTC, (c) 2004,2006 Simtec Electronics
s3c2410-rtc s3c2410-rtc: rtc disabled, re-enabling
s3c2410-rtc s3c2410-rtc: rtc core: registered s3c as rtc0
s3c2440-i2c s3c2440-i2c: slave address 0x10
s3c2440-i2c s3c2440-i2c: bus frequency set to 390 KHz
s3c2440-i2c s3c2440-i2c: i2c-0: S3C I2C adapter
TCP cubic registered
NET: Registered protocol family 1
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
s3c2410-rtc s3c2410-rtc: setting system clock to 2009-03-06 14:24:47 UTC (1236349487)
yaffs: dev is 32505858 name is "mtdblock2"
yaffs: passed flags ""
yaffs: Attempting MTD mount on 31.2, "mtdblock2"
yaffs: auto selecting yaffs2
block 1381 is bad
block 1546 is bad
block 1707 is bad
VFS: Mounted root (yaffs filesystem).
Freeing init memory: 116K
我试了一下用原有的内核镜像，用我做的文件系统，可以启动，好像是我做的内核镜像那出了问题，请大家帮忙解决下，谢谢

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