Public bug reported: platform: sharkbay platform with haswell cpu symptom: the eax, ebx, ecx ,edx values with cpuid eax=7 are all zero, this isn't correct on haswell cpu.
reason : Before cpuid app executes cpuid instruction, it doesn't clear ebx, ecx and edx, this break intel cpuid instruction rule. you can check cpuid instruction at : http://download.intel.com/products/processor/manual/325383.pdf ** Affects: cpuid (Ubuntu) Importance: Undecided Status: New ** Attachment added: "the patch for this tool" https://bugs.launchpad.net/bugs/1161277/+attachment/3602801/+files/patch -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1161277 Title: cpuid value is not correct on intel HSW cpu To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cpuid/+bug/1161277/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs