Hello,
I've been trying to use L4-Linux as a real-time platform for a control application. The application was developed based on VxWorks, but ported to Linux lately. Unfortunately, as you know, Linux allows usual processes to block a real-time process for durations of 100 ms or more. I found that a process of L4-Linux can preempt the Linux server if the process is given a priority higher than that of Linux, and can continue with its work as far as it does not call Linux for services. I actually tested it on a PC-compliant VME CPU board. Interrupt latency in the worst case was less than 1 ms, even with a disk I/O background. I'm wondering if this mailing-list accepts application related issues as well. If so, I'd like to ask you : 1) Is that kind of idea crazy? 2) Is there anyone who tried (or is going to try) something like that? 3) Is L4-Linux going to keep up with the revisions of Linux in the future? I'll appreciate any suggestion, comment and criticism.
Thanks in advance.
J. Odagiri