Another Test Run with Alternative pmap Implementation

[Ian Lepore]

On Fri, 2014-11-28 at 10:43 +0100, Svatopluk Kraus wrote:
> Hmm, IMO, the LOR is well known. The broken pipe likely points to a problem
> with SD card where your system is running. So, somehow your SD card stops
> working. It could be caused, in the order of likelihood, because of
> 
> (1) bad SD card,
> (2) bad driver,
> (3) something else.
> 
> Svata

We haven't had any reports of trouble with the imx6 sd driver.

I would try turning off the DIAGNOSTIC option.  It's really more harmful
than useful on arm.  On armv4 it makes the entire system lock up for
seconds at a time as it runs some really expensive loop to verify
something, I think it may have been VM data structures.  Even on a
faster chip such as imx6 this could cause problems like sdcard timeouts,
as well as making a 2 hour compile take 7 hours.

-- Ian