On 28 January 2013 14:17, Andy Green andy.green@linaro.org wrote:
No, "blowing chunks" (slang for vomiting) is different than "blowing up"... the 4460 has a separate comparator that is able to reset the SoC if it gets really too hot.
Ah, another term for my collection of disgusting things to talk about during lunch. ;)
It will crash colourfully before then is what I mean, unless one of these
thermal mechanisms is helping. It varies by chip actually, some can idle at 1.2GHz for a long time before choking others crash in a few seconds.
Not sure it adds anything, but I had a Panda here at home (room temperature between 18 and 21 Celsius) running Ubuntu 12.04 desktop version referred from the Panda wiki (with GUI and everything) for 6 days building LLVM 24/7 without a single glitch.
The moment I put on the LAVA rack, it failed before the end of the first build.
I then remove all GUI packages, useless services, kernel modules (left only the LED driver) and it went back to almost-normal. It failed only once since then.
The failure is simple: it freezes. I haven't seen anything on the screen (it blacks out), or over serial and the machine stops responding to ping. Dead. But on. And hot. It looks as though it hit an area outside the system and is running the same NOPs over and over.
Some say there was an Indian cemetery in that land before The Quorum was built, it could be a curse, ghosts or even leprechauns. Scratch that, there isn't a single pub nearby, probably ghosts, then.
cheers, --renato