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.). Jan
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