Something is causing the 4.4-rc kernels to only use half the CPU capacity of my Sun Blade 2500 (dual USIIIi). The kernel does detect both CPUs, but it doesn't seem to want to schedule processes on both of them. During CPU-intensive jobs like GCC bootstraps, 'top' indicates the machine is 50% idle and aggregate CPU usage is 100% (should be 200%). This is completely deterministic. Going back to 4.3.0 resolves the problems. Any ideas? I'll try a git bisect, but it's going to take a while on this old HW. The 4.4-rc .config is my working 4.3 .config + make oldconfig with default answers (mostly N) to all new options -- I diffed them and didn't see anything suspicious. I also didn't find anything suspicious in the kernel log. /Mikael -- To unsubscribe from this list: send the line "unsubscribe sparclinux" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
