ubifs error and file lost

chunhong chi

I use ubifs on nandflash, sometimes it occurs ubifs error, such as ubifs_check_node:bad CRC, switch to read-only mode, then program can't boot successfully. Sometimes some files lost and some files become read-only. When errors happened, I must erase mtd block. In my kernel code, nandflash ecc is BCH8. Is it the problem of nandflash driver or ubi code? When I use ramdisk, error never happened.

over 10 years ago

0 Titusrathinaraj Stalin over 10 years ago

TI__Guru** 116100 points

Hi Chunghong,

Could you please tell us what processor are you using ?

0 chunhong chi over 10 years ago in reply to Titusrathinaraj Stalin

Intellectual 300 points

tms320dm8168BCYGA2. It occors bad block on my nandflash, and my many boards occurs this problem frequently.In my uboot, I used the command "nand scrub", will it have effect on my nandflash.

0 Pavel Botev over 10 years ago in reply to chunhong chi

TI__Guru**** 170625 points

Hi Chunghong,

Are you using DM816x EZSDK 5.05.02.00?

See if the below e2e threads will be in help:

http://e2e.ti.com/support/dsp/davinci_digital_media_processors/f/716/t/211477.aspx

http://e2e.ti.com/support/dsp/davinci_digital_media_processors/f/537/t/261353.aspx

http://e2e.ti.com/support/dsp/omap_applications_processors/f/447/t/178686.aspx

http://e2e.ti.com/support/embedded/android/f/509/p/111277/394500.aspx#394500

Regards,
Pavel

0 chunhong chi over 10 years ago in reply to Pavel Botev

Intellectual 300 points

I'm using DVRRDK 4.0. Is the ubifs stable on the nandflash?

0 Pavel Botev over 10 years ago in reply to chunhong chi

TI__Guru**** 170625 points

Chunhong,

Try with applying all the UBIFS/NAND related patches from:

http://arago-project.org/git/projects/?p=linux-dvr-rdk-dm81xx.git;a=summary

http://arago-project.org/git/projects/?p=linux-dvr-rdk-dm81xx.git;a=shortlog;h=refs/heads/dvrrdk_kernel_int_branch

http://arago-project.org/git/projects/?p=linux-omap3.git;a=shortlog;h=refs/heads/ti81xx-master

BR
Pavel

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ubifs error and file lost