Der Herr Hofrat wrote:
It is a software layer - no hardware prhibiting this - so if you have a X-server doing cli/sti in the driver or a binary driver that does somthing like that - they adeos can't stop it.
This is true also. But it is really annoying to verify it. In suspicion of such an event I tried to disassamble a few drivers and then look for cli/sti. It turned out there were in asm but then they where not there in . In fact it was the disassambler that misunderstood FA/FB in disassembling a switch table. Then I concluded that it is not a simple matter of objdumping and seeing so gave up.
A further example: I've a nice new ATHLON machine that in alpha mode shows very low latencies under high Linux load, but as I'm in X they skyrockets to msecs, and that happens with both RTAI on ADEOS and on its old legacy RTHAL.
Yours is the first case I step on such a problem with Celerons. Paolo.
