Messages in this thread | | | Subject | Re: new IRQ scalability changes in 2.3.48 | Date | Sun, 19 Mar 2000 12:10:13 +0100 (MET) | From | (Rogier Wolff) |
| |
tytso@mit.edu wrote: > Date: Mon, 13 Mar 2000 09:33:10 -0800 (PST) > From: Linus Torvalds <torvalds@transmeta.com> > > and you're now done. Tadaa! You have a pre-emptive UP kernel. Add a few > months of debugging (because something _will_ crop up, or my name isn't > Billy-Bob). > > Linus, > > I think this is a great idea, as it will catch all sorts of > places where we've been slopping about SMP races, by exposing them in > the UP kernel. However, is now (just before 2.4) the best time to be > doing this? I fear that there may be plenty of places hiding in the > kernel where we aren't adequately proteccting shared data structures.
As those bugs are simply bugs that didn't show up because the driver hadn't been run on SMP just yet, they should be fixed.
By the end of the 2.4 lifetime, many more people will be running SMP hardware than now.
How about making "preemptive kernel" a "default-on" option on 2.4pre and a "default-off" option on the real 2.4 kernel?
Roger.
-- ** R.E.Wolff@BitWizard.nl ** http://www.BitWizard.nl/ ** +31-15-2137555 ** *-- BitWizard writes Linux device drivers for any device you may have! --* * Common sense is the collection of * ****** prejudices acquired by age eighteen. -- Albert Einstein ********
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/
| |