Messages in this thread | | | Date | Mon, 31 Dec 2001 16:14:25 GMT | From | ncw@axis ... | Subject | Re: [PATCH] fully preemptible kernel |
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In linux-kernel, Heinz Diehl <hd@cavy.de> wrote: > On Wed Dec 26 2001, Steve Bergman wrote: > > [Preempt-kernel patch for 2.4.17 final] > > I just compiled 2.4.17 with the patch from your site that looks to be > > for 2.4.17-final. Unfortunately, several modules (e.g. unix.o) fail on > > load with an undefined symbol error (preempt_schedule). > > No problems here. Are you shure you built the kernel modules and they were > installed properly?
It might be because you didn't do a 'make mrproper' on a kernel tree you've used before for a non-preempt build. As I understand it the preempt patch effectively makes your kernel SMP - this changes the architecture of the kernel so you need a 'make mrproper'.
make mrproper deletes your .config file so save that first if you wanted it ;-)
Also you need a seperate modules directory - the preempt modules aren't compatible with non-preempt. Edit the top level makefile and put a suffix in.
BTW The preempt patch is working fine here too! -- Nick Craig-Wood ncw@axis.demon.co.uk - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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