Re: [PATCH v2] cpu-= command line parmeter, SYS_cpuid sys call, kernel-adjusted CPUID

Hi Piotr, [auto build test WARNING on next-20160310] [cannot apply to tip/x86/core xen-tip/linux-next v4.5-rc7 v4.5-rc6 v4.5-rc5 v4.5-rc7] [if your patch is applied to the wrong git tree, please drop us a note to help improving the system] url: https://github.com/0day-ci/linux/commits/Piotr

Re: [PATCH v2] cpu-= command line parmeter, SYS_cpuid sys call, kernel-adjusted CPUID

Hi Piotr, [auto build test ERROR on next-20160310] [cannot apply to tip/x86/core xen-tip/linux-next v4.5-rc7 v4.5-rc6 v4.5-rc5 v4.5-rc7] [if your patch is applied to the wrong git tree, please drop us a note to help improving the system] url: https://github.com/0day-ci/linux/commits/Piotr-H

[PATCH v2] cpu-= command line parmeter, SYS_cpuid sys call, kernel-adjusted CPUID

Currently there is no way of disabling CPU features reported by the CPUID instruction. Which sometimes turn out to be broken [1] or undesired [2]. We can assume we will run into similar situations again sooner or later. The only way to fix this is to do a microcode update (if it is available), as t