UBIFS trouble

[Daniel Mack]

On Thu, Jul 09, 2009 at 09:00:42PM +0300, Adrian Hunter wrote:
>> [  648.188650] timed out writing command
>> [  648.192379] UBI error: ubi_io_read: error -74 while reading 81 bytes from PEB 738:80616, read 81 bytes
>> [  648.201732] UBIFS error (pid 1136): try_read_node: cannot read node type 1 from LEB 72:76520, error -74
>> [  648.211137] UBIFS error (pid 1136): ubifs_read_node: bad node type (255 but expected 1)
>> [  648.219115] UBIFS error (pid 1136): ubifs_read_node: bad node at LEB 72:76520
>> [  648.226231] UBIFS error (pid 1136): do_readpage: cannot read page 26131 of inode 32838, error -22
>>

[...]

> Try the NAND tests in drivers/mtd/tests.

Hmm. The torture test indees shows a problem now:

sh-3.2# modprobe mtd_torturetest dev=3
[  386.367730] 
[  386.369296] =================================================
[  386.375258] mtd_torturetest: Warning: this program is trying to wear out your flash, stop it if this is not wanted.
[  386.385811] mtd_torturetest: MTD device: 3
[  386.390021] mtd_torturetest: torture 32 eraseblocks (8-39) of mtd3
[  386.396238] mtd_torturetest: write verify enabled
[  388.675993] double bit error @ page 00000b79
[  388.680406] timed out writing command
[  388.687925] mtd_torturetest: error -74 while reading EB 36, read 131072
[  388.694536] mtd_torturetest: verify failed for 0xFF... pattern
[  388.700364] mtd_torturetest: finished after 0 erase cycles
[  388.705885] mtd_torturetest: error -74 occurred during torturing
[  388.711908] =================================================
modprobe: Failed to load module mtd_torturetest: Bad message.

Any hint what to debug?

Thanks,
Daniel