[onerng talk] Firmware verification failed, on move to other system

James Cameron quozl at laptop.org
Mon Apr 20 01:26:37 BST 2015

On Mon, Apr 20, 2015 at 12:00:13PM +1200, Paul Campbell wrote:
> On Mon, 20 Apr 2015 09:45:39 James Cameron wrote:
> > Your wait in onerng.sh was too short for my hardware.  Increased it to
> > 3.5 seconds and it works fine.
> ....
> > The dd is CPU intensive; lots of one byte reads.  My system has a lot
> > of context switching by network applications, but a load average of
> > only 0.10.
> Excellent thanks, I'll try and spin a fix tonight - I can change the
> dd to do bigger reads (just have to deal with the correct size
> mutiple)

I've tried powers of two.

Raised to bs=2, threshold of reliability was around 1.4 seconds.

Raised to bs=4, threshold of reliability was around 0.81 seconds.

No further improvement all the way up to bs=16384.

> I'll spin a new version tonight and release it (if I can get all the
> tests done)

Happy to test before release.

James Cameron

More information about the Discuss mailing list