Problem with copying more than 2kb file into the flash

Problem with copying more than 2kb file into the flash

[s.balamurugan]

Hello all,

I am using Samsung 256mb nand flash.
page size : 2kb
block size:128kb

I have the following prolbem:

I have a situation here where I mount JFFS2 on top of my NAND device and
certain files will fail to copy over.  Small text files are fine.  The
problem is with large binary files.  I copy to my mounted dir and ls -l
shows the file is entirely there.  

Upon remounting, the file is lost or showing a size of 0.  Upon scanning the
flash at mount I will always get "jffs2_get_inode_nodes(): Data CRC failed
on node at ..."  

            I don't know where is the problem either in my nand driver or jffs2 code

Has anyone experienced this and have any ideas?  Any help would be much
appreciated.

Re: Problem with copying more than 2kb file into the flash

[Artem Bityutskiy]

On Thu, 2006-11-16 at 20:01 +0530, s.balamurugan wrote:
> Upon remounting, the file is lost or showing a size of 0.  Upon scanning the
> flash at mount I will always get "jffs2_get_inode_nodes(): Data CRC failed
> on node at ..."  
> 
>             I don't know where is the problem either in my nand driver or jffs2 code
> 
> Has anyone experienced this and have any ideas?  Any help would be much
> appreciated.

I would start from making sure the that your flash driver is all right.

-- 
Best regards,
Artem Bityutskiy (Битюцкий Артём)

Re: Problem with copying more than 2kb file into the flash

[Artem Bityutskiy]

Please, be public.

On Thu, 2006-11-16 at 20:25 +0530, s.balamurugan wrote:
>        Thanks for ur kind reply.     Please tell exactly where is the
> problem, more than 20 days i was suffer with this problem.
> or give me detail explanation about jffs2 code flow. how the file was
> written to flash.

Sorry, this is a question of "tell me all about everything" type.

>                     but in jffs2_commit_write() function is not
> showing the correct size.
>                int jffs2_commit_write (struct file *filp, struct page
> *pg, unsigned start, unsigned end), the end parameter was show the
> wrong file size.
> and i want to know how jffs2_commit_write funciton was called.
> givve some idea

Sorry, -EDONTUNDERSTAND.

-- 
Best regards,
Artem Bityutskiy (Битюцкий Артём)