系统启动时打印Partially written block X detected信息

关键词:ARM  Linux  YAFFS2   抵岸科技

 

YAFFS2文件系统在做了创建、删除等操作后,下次开出现N多Partially written block X detected打印信息。显示如下:

 

Creating 6 MTD partitions on "atmel_nand":

0x000000000000-0x000000020000 : "bootstrap"

0x000000020000-0x000000060000 : "uboot"

0x000000060000-0x000000080000 : "env1"

0x000000080000-0x0000000a0000 : "env2"

0x0000000a0000-0x0000002a0000 : "linux"

0x0000002a0000-0x000008000000 : "root"

usbmon: debugfs is not available

ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver

at91_ohci at91_ohci: AT91 OHCI

at91_ohci at91_ohci: new USB bus registered, assigned bus number 1

at91_ohci at91_ohci: irq 20, io mem 0x00500000

usb usb1: configuration #1 chosen from 1 choice

hub 1-0:1.0: USB hub found

hub 1-0:1.0: 2 ports detected

Initializing USB Mass Storage driver...

usbcore: registered new interface driver usb-storage

USB Mass Storage support registered.

udc: at91_udc version 3 May 2006

mice: PS/2 mouse device common for all mice

rtc-at91sam9 at91_rtt.0: rtc core: registered at91_rtt as rtc0

IRQ 1/rtc0: IRQF_DISABLED is not guaranteed on shared IRQs

rtc-at91sam9 at91_rtt.0: rtc0: SET TIME!

Registered led device: ds5

Registered led device: ds1

usbcore: registered new interface driver usbhid

usbhid: v2.6:USB HID core driver

Advanced Linux Sound Architecture Driver Version 1.0.20.

ALSA device list:

  No soundcards found.

TCP cubic registered

NET: Registered protocol family 17

RPC: Registered udp transport module.

RPC: Registered tcp transport module.

rtc-at91sam9 at91_rtt.0: hctosys: unable to read the hardware clock

yaffs: dev is 32505861 name is "mtdblock5"

yaffs: passed flags ""

yaffs: Attempting MTD mount on 31.5, "mtdblock5"

Partially written block 53 detected

Partially written block 53 detected

Partially written block 53 detected

Partially written block 53 detected

Partially written block 53 detected

Partially written block 53 detected

Partially written block 53 detected

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Partially written block 51 detected

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Partially written block 49 detected

yaffs_read_super: isCheckpointed 0

VFS: Mounted root (yaffs2 filesystem) on device 31:5.

Freeing init memory: 116K

running /etc/init.d/rcS

mount -t proc proc /proc

mount -t sysfs /sys /sys

 

解决方法:

 

方法一,修改 yaffs_fs.c yaffs_auto_checkpoint 改成 2

 方法二,修改fs/yaffs2/yaffs_guts.cstatic int yaffs_ScanBackwards(yaffs_Device * dev) 函数中


。。。。

        T(YAFFS_TRACE_ALWAYS,    /*YAFFS_TRACE_SCAN*/
        (TSTR("Partially written block %d detected" TENDSTR),
        blk));

。。。。

报错是由于YAFFS_TRACE_ALWAYS造成的。只要把它改成YAFFS_TRACE_SCAN 就OK了

 

 

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