Thanks, Tim. Like Thomas Edison, I know two more ways not to make a light bulb.
Mark, I don’t understand your message. What is an IPC? Inter process communication? Are you explaining that if any one processor doesn’t respond to the debug stub, then the stub cannot break in? And why would NMI be any different? Wouldn’t the debug stub send an NMI to all the other processors to stop them?
By the way, the link to connecttech.com for the PCIe dump switch card led me to a page where I could email them for a quote. In response, they sent me a link to their distribution partner. Here it is: http://www.wdlsystems.com/Box-PC/?search=adg018. The card sells for $133.00.
I’m inclined to pass up the opportunity at that price. But I’m putting it here for other more serious hardware developers to see.
If your thing is preventing “InterProcess Communication” from completing by
keeping one or more processors out of the rendez-vous, the system will be
hung but it would respond to an NMI. The nmi only has to to get to one cpu.
IPC is interprocess communication triggered by IPI interprocess interrupt.
Mark Roddy
On Sat, Mar 10, 2018 at 10:03 PM, xxxxx@rolle.name wrote:
> Thanks, Tim. Like Thomas Edison, I know two more ways not to make a light
> bulb.
>
> Mark, I don’t understand your message. What is an IPC? Inter process
> communication? Are you explaining that if any one processor doesn’t
> respond to the debug stub, then the stub cannot break in? And why would
> NMI be any different? Wouldn’t the debug stub send an NMI to all the other
> processors to stop them?
>
> By the way, the link to connecttech.com for the PCIe dump switch card led
> me to a page where I could email them for a quote. In response, they sent
> me a link to their distribution partner. Here it is:
> http://www.wdlsystems.com/Box-PC/?search=adg018. The card sells for
> $133.00.
>
> I’m inclined to pass up the opportunity at that price. But I’m putting it
> here for other more serious hardware developers to see.
>
>
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