On 8/15/07, David Timms <dtimms@xxxxxxxxxxxx> wrote: > Gilboa Davara wrote: > > On 8/12/07, Dave Stevens <geek@xxxxxxxxxxxx> wrote: > >> Hello, the list; > >> > >> The AMD news about the upcoming Barcelona release says it will run on RHEL 5. > >> Does that imply (or does anyone have experience to show) that F7 will run on > >> it ok? > >> > >> Dave > >> > > > > Barring motherboard/chipset problems (which - given the use of the > > existing socket F platform - should be pretty rare) - Barcelona CPUs > > should work out of box on both Fedora and RHEL/CentOS. > > > Correct me if I'm wrong: > RHEL 5 came from the development that was released as FC6. > FC6 and F7 receive newer kernels soon after they are released, while > RHEL 5 gets mainly/only gets security back ports. > > So it would seem more likely that if the one distro doesn't work with > the new CPU, it is more likely to be the older RHEL 5. > > DaveT. True, but by design, multi-core CPUs behave exactly like normal SMP machines. (with "more" sockets) RHEL5 may be unable to access new core extensions (E.g. new SSEn/3DNow, Better Cool & Quiet, VT/SVN extensions, etc) or may not be able to detect the CPU family/version under /proc/cpuinfo, but it should boot just fine and detect all the cores. *, **. - Gilboa * As long as number of the cores then does not exceed the complied-in NR_CPUS value inside the kernel. ** Wrongly detecting the number of cores - per socket, might exceed the license - though I assume that RedHat will release a kernel fix once such problem is detected.
