[Bug middle-end/39677] AMD Opteron E needs workaround for lock erratum

Tue Apr 7 13:42:00 GMT 2009


------- Comment #1 from bonzini at gnu dot org  2009-04-07 13:42 -------
More info from Solaris bug # 6323525:

if (number_of_cores() < 2) then don't have bug
if (family == 0xf && Model < 0x40) then have bug
if (rdmsr(MSR_BU_CFG/*0xC0011023*/) & 2) then bug is masked

See also http://bugzilla.kernel.org/show_bug.cgi?id=11305


-- 

bonzini at gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2009-04-07 13:42:25
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39677