On Tue, 26 Aug 2008, Mike Travis wrote: > > The need to allow distros to set NR_CPUS=4096 (and NODES_SHIFT=9) is > critical to our upcoming SGI systems using what we have been calling > "UV". That's fine. You can do it. The default kernel will not, because it's clearly not safe. I really don't care what you do to _your_ images. But I will not distribute a known-broken kernel, and I will not debug random stack overflows that happen in it. If you want the default kernel to support 4k cores, we'll need to fix the stack usage. I don't think that is impossible, but IT IS NOT GOING TO HAPPEN for 2.6.27. And quite frankly, if some vendor like RedHat enables NR_CPUS=4096 by default, they are totally and utterly crazy. But some SGI-specific binary that is meant for SGI machines only, and has been extensively tested with the setup used on SGI machines is a different thing. Linus -- To unsubscribe from this list: send the line "unsubscribe kernel-testers" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
