[U-Boot] Slow tftp boot with Ubuntu 12.04 tftp server

[Alexander Holler]

Am 17.01.2013 12:19, schrieb David Aldrich:
> Hi
>
> I am using an Advantech TMX320TCI6614 EVM to develop code for an ARM core on a TI C66x device.  The ARM core runs:
>
> U-Boot 2011.06-00002-gc4611c1-dirty (May 30 2012 - 15:38:01)
>
> I have booted this target card for several months from a tftp server running under Ubuntu 10.04, with no problems.  But, this week, I have tried to move to a tftp server that runs on a different machine running Ubuntu 12.04 LTS.
>
> Since moving to Ubuntu 12.04 the tftp download is very slow, although it does succeed eventually.  I have tried getting the boot files using a tftp client running on another Ubuntu host and the download is fast.
>
> Please can anyone suggest a reason for the slow download when using the EVM with the 12.04 server?

Try setting the max. blocksize explicit, e.g. I'm using -B 1460 here. It 
depends on the used tftp-server.

Regards,

Alexander