Messages in this thread | | | Date | Mon, 25 May 1998 11:37:59 -0400 | From | Pierre Phaneuf <> | Subject | Re: SMP=1 (was 2.1.103: Still "Ugh at c0111691") |
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Mark Cooke wrote:
> > > Its quite embarassing to say that I've built SMP-kernels on my single > > > processor system - I just didn't notice that SMP was enabled. > <snip> > > This should be changed so that SMP is not default anymore once > > all the different source trees get synced again. (i.e., hopefully before > > 2.2. :) > > Or that menuconfig/xconfig/config and modified to have a reasonably > prominent display of the current setting of the SMP variable.
It shouldn't be embarassing or something. SMP kernels are *supposed* to work on single processor systems. I think there's a APIC emulation layer (whatever that is!) slowing things down when you use an SMP kernel on a UP system, but it *should* work. I run SMP kernels on my UP system to see if anything breaks because of this. I (think I) pay with lessened performances, but the reward is I know I'm helping out with kernel development (trying to break things)...
On the other hand, this is only the second Oops I had since starting up with 2.1.x kernels (I started at 2.1.92), so maybe I'm not helping much... ;-) (kudos to Linus and everyone!)
-- Pierre Phaneuf Web: http://newsfeed.sx.nec.com/~ynecpip/ finger: ynecpip@newsfeed.sx.nec.com
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