Bad block on N810

Bad block on N810

[Carlos Aguiar]

Hi folks,

I'm having a curious problem with my N810: my device turn off (turn off, not restart) always a few seconds after just initialized.

Well, after taking a look in dbug mode, I saw the the following problems:

[   36.921875] JFFS2 notice: (1200) check_node_data: wrong data CRC in data node at 0x0b651edc: read 0x25e088e1, calculated 0x76861b05.
...
[   40.578125] JFFS2 warning: (1293) jffs2_sum_write_sumnode: Not enough space for summary, padsize = -965

I already reflash the FIASCO image, but this error persists. So it looks that the fs has some problem (bad block) on internal memory card. mkfs could solve the problem, but, as I mentioned above, only a few seconds after starting, the device shutdown  :( 

Any hints?

BR,

Carlos.

-- 
Carlos Eduardo Aguiar
Software Developer
Mobile Linux Software
Nokia Institute of Technology - INdT
E-mail: carlos.aguiar@indt.org.br

Re: Bad block on N810

[Max Filippov]

> Hi folks,
>
> I'm having a curious problem with my N810: my device turn off (turn off, not restart) always a few seconds after just initialized.
>
> Well, after taking a look in dbug mode, I saw the the following problems:
>
> [   36.921875] JFFS2 notice: (1200) check_node_data: wrong data CRC in data node at 0x0b651edc: read 0x25e088e1, calculated 0x76861b05.
> ...
> [   40.578125] JFFS2 warning: (1293) jffs2_sum_write_sumnode: Not enough space for summary, padsize = -965
>
> I already reflash the FIASCO image, but this error persists. So it looks that the fs has some problem (bad block) on internal memory card. mkfs could solve the problem, but, as I mentioned above, only a few seconds after starting, the device shutdown  :(
>
> Any hints?

Hello.

AFAIK N810 is turned off by its watchdog, so be sure to touch it at
least once a minute, like this:

echo 63 > /sys/devices/platform/retu-watchdog/period

-- 
Max
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