On Fri, 2 Oct 2015 23:46:59 +0300 Alexey Dobriyan <adobri...@gmail.com> wrote:
> FYI, I've upgraded from 4.1.7 to 4.2.1 (and retested with 4.2.2) and > everything is scheduled on 1 CPU out of 4 (i5 760). > > $ sudo cat /proc/1/status | grep cpu -i > Cpus_allowed: 1 > Cpus_allowed_list: 0 > > Every process inherits this tiny cpumask. Sell the other CPUs on ebay? I haven't seen such a report before - maybe it rings a bell with Peter & Ingo? It should be pretty easy to debug. I'd guess that the problem is in the area of x86 SMP bringup and there might even be a nasty message in the dmesg explaining what went wrong? > # > # Automatically generated file; DO NOT EDIT. > # Linux/x86 4.2.2 Kernel Configuration > # > CONFIG_64BIT=y > ... > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
