Hi Jan, I tried the kernel parameter maxcpus=0 on my SMP enabled, Xenomai-patched kernel (same as in mails below). The kernel does not boot. It stops after a couple of messages: IOAPIC[0]: Invalid reference to IRQ 0
Regards Mathias > M. Koehrer wrote: > > Hi everybody, > > > > I have a SMP kernel 2.6.17.7 on a Dual Core Pentium 4 running. > > SMP is enabled at the kernel configuration. > > This works fine. > > However, I want to compare UP with SMP operation, that's why > > I want to boot the system with the "nosmp" kernel parameter. > > However, booting of the PC with nosmp does not work. > > First it starts fine, however when trying to access hdb (which is the CD > ROM > > drive in my system) to get info about it, the message > > "hdb: lost interrupt" > > appears, and booting is stopped. > > > > Does the nosmp parameter work with a Xenomai patched kernel? > > Or what could be wrong with it.... > > > > I am using the latest Xenomai SVN #1948. > > The kernel patch is adeos-ipipe-2.6.17-i386-1.5-02.patch > > > > Any ideas on this? > > Same for maxcpus=0? I'm asking as this configures the system more > aggressively smp-less on x86 (patching spinlock alternatives for UP, > configuring LAPIC mode etc.). -- Mathias Koehrer [EMAIL PROTECTED] Viel oder wenig? Schnell oder langsam? Unbegrenzt surfen + telefonieren ohne Zeit- und Volumenbegrenzung? DAS TOP ANGEBOT JETZT bei Arcor: günstig und schnell mit DSL - das All-Inclusive-Paket für clevere Doppel-Sparer, nur 44,85 inkl. DSL- und ISDN-Grundgebühr! http://www.arcor.de/rd/emf-dsl-2 _______________________________________________ Xenomai-help mailing list [email protected] https://mail.gna.org/listinfo/xenomai-help
