[reddiric]

I didn't read the linked article but I did look through the slides, which were very interesting and talked about

- the abhorrent state of the engine control module code,

- the RToS's design,

- the critical data structures right above the stack,

- that those critical data structures weren't mirrored to detect corruption as is standard and as they did for other data,

- that single bit changes in that critical data structure right above a stack can cause the death of tasks in the RToS whose failsafe capabilities were located in those same tasks, and whose death was tested and confirmed to cause unintended acceleration consistent with accounts and descriptions of the event

- that the failsafe monitoring CPU was not designed to detect this failure, and in fact Toyota outsourced its design and didn't even have the source code to it...

[pnathan]

Effectively this is the total point of the transcript - that the system was fatally flawed in software design. Any number of bad things could have happened to cause catastrophic faults. Unintended accleration was demonstrated to be a result that could happen on a fault occurance.

[kllrnohj]

> Unintended accleration was demonstrated to be a result that could happen on a fault occurance.

Where was that demonstrated? It was hypothesized that it may be a result, but I'm not seeing anything other than speculation.

[reddiric]

Again, in the linked slides....

The article itself was basic and didn't really talk to the specific Toyota case, but the linked slides did... if you're going to speculate about the trial, look at Barr's slides, not that article..

http://i.imgur.com/IGWUXAS.png

http://i.imgur.com/1ZiVJRC.png

[pnathan]

It was done in a lab by Barr & his assistants. See the court transcript.