I'm not sure about the Mandrake kernels. However if you ask a kernel developer, they'll tell you that a vanilla SMP kernel will run fine on a UP box, you will just loose some performance because of extra locking.
My guess is that many of the patches are not SMP / UP clean. -Sean On Mon, Jul 08, 2002 at 04:20:10PM -0400, Thomas Naughton wrote: > sean, > > so you're saying that the SMP kernels shipped w/ say MDK are more > versitile than those packaged w/ RH? The SMP kernel thing has hit us > twice now, XTORC and a VMware cluster. > > just curious if MDK's packaged RPMs would not hit this problem on say > VMware virtual clusters, etc. No big deal now, just curious. > > --tjn > > _________________________________________________________________________ > Thomas Naughton [EMAIL PROTECTED] > Research Associate (865) 576-4184 > > > On Mon, 8 Jul 2002, Sean Dague wrote: > > > On Wed, Jul 03, 2002 at 02:45:02PM -0500, Jason B. wrote: > > > As it is, we figure out whether the nodes are UP or SMP at some point. If > > > the nodes get both installed (which they do), SIS should make the appropriate one > > > the default boot kernel when it sets up LILO. > > > > The issue here is that SIS uses a UP kernel for install, so it can't detect > > whether or not there are more processors there. SMP kernels should run on > > UP boxes in most cases, however the Red Hat kernels seem very problematic in > > this regard. > > > > -Sean > > > > > Jason > > > > > > On Wed, 3 Jul 2002, Steven A. DuChene wrote: > > > > > > > On Wed, Jul 03, 2002 at 10:52:11AM -0500, brechin wrote: > > > > > Actually, this seems to be an issue of trying to run an SMP kernel on a UP > > > > > box. This is a recurring issue that has been ignored, but we now have >another > > > > > chance to fix the problem. Anyone think we ought to do something about this? > > > > > > > > > > Jason > > > > > > > > > > >===== Original Message From "Steven A. DuChene" > > > > > <[EMAIL PROTECTED]> ===== > > > > > >On Wed, Jul 03, 2002 at 07:06:34AM -0700, Richard Ferri wrote: > > > > > >> Steve, > > > > > >> I am running RedHat 7.2, the 2.4.7-10 kernel. > > > > > >> Once I moved from the SMP kernel to the UP kernel, > > > > > >> life was good... Rich > > > > > >> > > > > > > > > > > > >Yes, this is a known issue with some versions of RedHat. I don't > > > > > >know if they fixed it yet in 7.3 > > > > > > > > > > > >I don't have many non-SMP boxes here so I can't test this problem. > > > > > > > > It requires running a UP kernel on a UP node. Do we have anyway of determining > > > > this? How will we know if a particular distro even packages both a UP kernel > > > > as well as a SMP one? I know most do but we would have to figure out the > > > > naming convention for each distro. > > > > > > > > I guessing that fixing this will require some unusual trickery by SIS that > > > > gets awefully close to altering the generic install methods for what ever >distro > > > > we are layering oscar on top of. > > > > > > > > I recall our software devel team at VA having this same issue. I "think" they > > > > fixed it by fixing/changing something in the kernel but off the top of my head > > > > I don't recall what it was. Can anyone determine if this same problem still > > > > occurs with the kernels packaged with RedHat-7.3 ??? > > > > -- > > > > Steven A. DuChene [EMAIL PROTECTED] > > > > [EMAIL PROTECTED] > > > > > > > > http://www.mindspring.com/~sduchene/ > > > > > > > > > > > > > > > > ------------------------------------------------------- > > > This sf.net email is sponsored by:ThinkGeek > > > No, I will not fix your computer. > > > http://thinkgeek.com/sf > > > _______________________________________________ > > > Oscar-users mailing list > > > [EMAIL PROTECTED] > > > https://lists.sourceforge.net/lists/listinfo/oscar-users > > > > -- > > _______________________________________________________________________ > > > > Sean Dague [EMAIL PROTECTED] http://dague.net > > > > There is no silver bullet. Plus, werewolves make better neighbors than > > zombies, and they tend to keep the vampire population down. > > _______________________________________________________________________ > > -- _______________________________________________________________________ Sean Dague [EMAIL PROTECTED] http://dague.net There is no silver bullet. Plus, werewolves make better neighbors than zombies, and they tend to keep the vampire population down. _______________________________________________________________________ Attachment Converted: "c:\documents and settings\ngorsuch\eudora\attach\Re [Oscar-users] welcome to re1"