Mark, You are solving problem "backwords". You should just enable ACPI on your realtime box to make it shutdown properly. ACPI by itself does not worsen real time capabilities of your machine, it is power management that do. You should definitely have CPU idle framework and ACPI processor driver disabled. ACPI, ACPI button are perfectly fine. If you care about latencies, you should also disable C1E support in BIOS (if you have such option). Saying this, I am having ~2-3msec average latencies on Celeron box with the above settings and worst case is 8msec.
Regards, Alex. Mark пишет: > A question that's asked from time to time is, why does my emc computer > not power off? > > I believe I have solved this problem: kexec is used to load a kernel > which enables ACPI and then executes poweroff. > > For the end user, the rtai-patched kernel must be recompiled with > kexec support (which the Ubuntu kernel already has), and kexec-tools > must be installed, along with an additional kernel image that's 1.9MB. > Kexec-tools has to be reconfigured. > > Rather than trying to describe all steps, I wrote a bash script that > does almost everything. Note, it's only been tested on Debian Etch, > but I think it will work on Ubuntu. > http://openpaste.org/en/17483/ > > Mark > ------------------------------------------------------------------------ > > ------------------------------------------------------------------------------ > Come build with us! The BlackBerry(R) Developer Conference in SF, CA > is the only developer event you need to attend this year. Jumpstart your > developing skills, take BlackBerry mobile applications to market and stay > ahead of the curve. Join us from November 9 - 12, 2009. Register now! > http://p.sf.net/sfu/devconference > ------------------------------------------------------------------------ > > _______________________________________________ > Emc-developers mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-developers > ------------------------------------------------------------------------------ Come build with us! The BlackBerry(R) Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9 - 12, 2009. Register now! http://p.sf.net/sfu/devconference _______________________________________________ Emc-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-developers
