Comment 4 for bug 593427

OK, I tried 2.6.34(http://kernel.ubuntu.com/~kernel-ppa/mainline/v2.6.34-lucid/) and have the same problem..

martin@martin-desktop:~$ cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 15
model name : Intel(R) Core(TM)2 CPU 6600 @ 2.40GHz
stepping : 6
cpu MHz : 2400.195
cache size : 4096 KB
physical id : 0
siblings : 1
core id : 0
cpu cores : 1
apicid : 0
initial apicid : 0
fpu : yes
fpu_exception : yes
cpuid level : 10
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx lm constant_tsc arch_perfmon pebs bts rep_good aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm lahf_lm tpr_shadow
bogomips : 4800.39
clflush size : 64
cache_alignment : 64
address sizes : 36 bits physical, 48 bits virtual
power management:

martin@martin-desktop:~$ hwinfo --cpu
01: None 00.0: 10103 CPU
  [Created at cpu.304]
  Unique ID: rdCR.j8NaKXDZtZ6
  Hardware Class: cpu
  Arch: X86-64
  Vendor: "GenuineIntel"
  Model: 6.15.6 "Intel(R) Core(TM)2 CPU 6600 @ 2.40GHz"
  Features: fpu,vme,de,pse,tsc,msr,pae,mce,cx8,sep,mtrr,pge,mca,cmov,pat,pse36,clflush,dts,acpi,mmx,fxsr,sse,sse2,ss,ht,tm,pbe,syscall,nx,lm,constant_tsc,arch_perfmon,pebs,bts,rep_good,aperfmperf,pni,dtes64,monitor,ds_cpl,vmx,est,tm2,ssse3,cx16,xtpr,pdcm,lahf_lm,tpr_
  Clock: 2400 MHz
  BogoMips: 4800.39
  Cache: 4096 kb
  Units/Processor: 2
  Config Status: cfg=new, avail=yes, need=no, active=unknown
martin@martin-desktop:~$ uname -a
Linux martin-desktop 2.6.34-020634-generic #020634 SMP Mon May 17 19:27:49 UTC 2010 x86_64 GNU/Linux

Please let me know if you need more info for that.
I will try 2.6.35.999 in a few minutes and post back.