NANDblaster failing

[Sridhar Dhanapalan]

On 11 February 2011 16:16, Sridhar Dhanapalan <sridhar at laptop.org.au> wrote:
> I am seeing NANDblaster (nb-secure) fail after some time (from my
> tests, anywhere between 30 minutes to an hour).
>
> The text was scrolling very fast (screenshots attached), but I think it was:
>
>  SDHCI: Error: ISR = 8000 ESR = 3 Command CRC, Command Timeout,
>  Command reg: 341a Mode reg: 0 Arg reg: 10000a00
>  Recon: commands (decimal): 52 52 52 52 52 52 52 52
>  Stopping
>
> This same error seems to be repeating itself rapidly.
>
> This is an XO-1.5 with Q3A62 firmware. The secure image I am flashing
> is 10.1.3-au2-rc5.
>
> The receiving XOs are fine until the error occurs on the sender. On
> one occasion, I tried blasting to 3 XOs. The first finished properly,
> and the sender continued to broadcast. The other two spat the dummy
> right after the sender failed. I am thrown to the ok prompt with the
> message "Page Fault".
>
> I have added screenshots and video in our bug report:
> http://dev.laptop.org.au/issues/359
>
> Is there any way we can manage this? It's quite urgent that we have a solution.

Would it be fair to conclude that the problem lies with the sending XO
hardware/firmware? Would it help if I tried blasting a different
build, or using nb-update instead of nb-secure?