use only one core of dual core system
Dave Jones
davej at redhat.com
Tue Oct 18 21:26:22 UTC 2005
On Tue, Oct 18, 2005 at 02:11:02PM -0700, Bill Rees wrote:
> >>I'm trying to isolate a driver problem that appears to be smp
> >>related so I would like to take the system with the smp kernel and
> >>boot it so that only one cpu is used. Ideally, I'll be able to tell
> >>if running off of two cores is causing problems with the usb driver.
> >>So the only thing I've found that I can pass to the kernel during
> >>boot is maxprocs which doesn't seem to actually deal with the number
> >>of cpus but rather the number of processes.
> >>Is there any boot variable that will prevent the second cpu from
> >>coming up?
> >
> >Try installing the non-smp kernel and booting that kernel, instead of
> >the smp kernel.
> This I will do but I would also like to be able to pass an arg to the
> smp kernel telling it to only use on core.
Boot with maxcpus=1
Dave
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