NAND subsector writing problem

Thomas Gleixner tglx at
Fri Jan 31 02:10:31 EST 2003

On Friday 31 January 2003 03:11, Alex Samoutin wrote:
>  don't know much about sub-page writing. I've only took latest MTD snapshot
> and wrote hardware level driver for NAND chip on IBM 405ep board. And then
> started "nandtest" program from the same snapshot. So, if "mixing ECC and
> sub-page writes is invalid" then something wrong in "nand.c" or "nandtest.o"
nandtest is not a valid testprogram for NAND. It should be removed from CVS.

> And furthermore -  that was not ECC error, it was error during verify read
> after write (read and write buffer not match).
> Also I have troubles with JFFS2  :(.  nand_write_page failed after verify
> ( If CONFIG_MTD_NAND_VERIFY_WRITE not defined - I have no error message)
Can you turn NAND debugging on and send me the debug output ?

linutronix - competence in embedded & realtime linux
mail: tglx at

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