On Thu, 2013-08-29 at 20:51 +0200, Helge Deller wrote: > Hi all, > > I was asked by the debian kernel team to drop on parisc the UP kernels > and only provide SMP kernels even for UP-machines. > For 64bit it might make sense to only ship a 64bit SMP kernel, but I'm > not sure if it makes sense for 32bit kernels. > One major question would be, if there exists any 32bit parisc machines > which support multiple CPUs at all? > If not, then it would make sense to drop the 32bit SMP kernels > instead. > > So, are there any 32bit SMP machines out there? Yes, the J class systems have some 32 bit only SMP boxes (well one, the J210XC, I think) ... mostly with 7200 and above processors. > Any other thoughts on this topic? SMP will certainly work. The main problem with SMP on UP is the unnecessary spinlock cost. I think given there's very few owners of J class SMP 32 bit systems, 32 bit UP and 64 bit SMP is OK. James -- To unsubscribe from this list: send the line "unsubscribe linux-parisc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
