Comment 1 for bug 1290735

It looks like this does not happen on an AMD CPU but it does happen on the following HW:

    description: Rack Mount Chassis
    product: ProLiant DL380p Gen8 (653200-B21)
    vendor: HP
    serial: xxxxxxxxxxxxxxxxxxxxxxxx
    width: 64 bits
    capabilities: smbios-2.7 dmi-2.7 vsyscall32
    configuration: boot=normal chassis=rackmount family=ProLiant sku=653200-B21 uuid=36353332-3030-435A-3233-35303xxxxxxxxx
  *-core
       description: Motherboard
       physical id: 0
     *-firmware
          description: BIOS
          vendor: HP
          physical id: 0
          version: P70
          date: 09/18/2013
          size: 64KiB
          capacity: 8128KiB
          capabilities: pci pnp upgrade shadowing escd cdboot bootselect edd int13floppy360 int13floppy1200 int13floppy720 int5printscreen int9keyboard int14serial int17printer int10video acpi usb biosbootspecification netboot
     *-cpu:0
          description: CPU
          product: Intel(R) Xeon(R) CPU E5-2667 v2 @ 3.30GHz
          vendor: Intel Corp.
          physical id: 400
          bus info: cpu@0
          version: Intel(R) Xeon(R) CPU E5-2667 v2 @ 3.30GHz
          slot: Proc 1
          size: 1200MHz
          capacity: 1200MHz
          width: 64 bits
          clock: 100MHz
          capabilities: x86-64 fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm pcid dca sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm ida arat epb xsaveopt pln pts dtherm tpr_shadow vnmi flexpriority ept vpid fsgsbase smep erms cpufreq
          configuration: cores=8 enabledcores=8 threads=16
        *-cache:0
             description: L1 cache
             physical id: 710
             slot: Processor 1 Internal L1 Cache
             size: 256KiB
             capacity: 384KiB
             capabilities: burst internal write-back data
        *-cache:1
             description: L2 cache
             physical id: 720
             slot: Processor 1 Internal L2 Cache
             size: 2MiB
             capacity: 3MiB
             capabilities: burst internal write-back
        *-cache:2
             description: L3 cache
             physical id: 730
             slot: Processor 1 Internal L3 Cache
             size: 25MiB
             capacity: 30MiB
             capabilities: burst internal write-back
     *-cpu:1
          description: CPU
          product: Intel(R) Xeon(R) CPU E5-2667 v2 @ 3.30GHz
          vendor: Intel Corp.
          physical id: 401
          bus info: cpu@1
          version: Intel(R) Xeon(R) CPU E5-2667 v2 @ 3.30GHz
          slot: Proc 2
          size: 1200MHz
          capacity: 1200MHz
          width: 64 bits
          clock: 100MHz
          capabilities: x86-64 fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm pcid dca sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm ida arat epb xsaveopt pln pts dtherm tpr_shadow vnmi flexpriority ept vpid fsgsbase smep erms cpufreq
          configuration: cores=8 enabledcores=8 threads=16
        *-cache:0
             description: L1 cache
             physical id: 716
             slot: Processor 2 Internal L1 Cache
             size: 256KiB
             capacity: 384KiB
             capabilities: burst internal write-back data
        *-cache:1
             description: L2 cache
             physical id: 726
             slot: Processor 2 Internal L2 Cache
             size: 2MiB
             capacity: 3MiB
             capabilities: burst internal write-back
        *-cache:2
             description: L3 cache
             physical id: 736
             slot: Processor 2 Internal L3 Cache
             size: 25MiB
             capacity: 30MiB
             capabilities: burst internal write-back