[coreboot] v3 memtest Unexpected Interrupt - Halting

[Peter Stuge]

A long v3 memtest was requested. It doesn't take long before Memtest
stops, sometimes it is immediate after startup. The serial console
looks like this:

      Memtest-86 v3.4       | Pass 10% ###
 498.1MHz                   | Test 51% ###################                     
L1 Cache: Unknown           | Test #4  [Moving inversions, random pattern]   
L2 Cache: Unknown           | Testing:  120K -  248M  247M          
Memory  :  247M             | Pattern:   3430d8ec    
Chipset : 


 WallTime   Cached  RsvdMem   MemMap   Cache  ECC  Test  Pass  Errors ECC Errs
 ---------  ------  -------  --------  -----  ---  ----  ----  ------ --------
   0:06:53    247M       0K  LinuxBIOS   on   off   Std     0       0
 -----------------------------------------------------------------------------
Unexpected Interrupt - Halting                                  Test  Errors
   Lowest Error Address: 00000fffffc -Stack:.9MB                   0       0
 Type: Gen_Prot Addreax: 3430d8ec70f -0001b874M00000000  0001b8a4 00000002 0
   PC: 00003bb9ror Mebx: 00000000     0001b878 3430d8ec  0001b8a8 0f7dff00 0
   CS: 00000010 - Toecx: ffffffff 1  M0001b87cv0000000d  0001b8ac 0f7dff00 0
Eflag: 00010012s Erredx: 037dfefc     0001b880 00000000  0001b8b0 00100000 3
 Code: 00000000e Erredi: ffffffff     0001b884 00003bb9  0001b8b4 00000001 0
 Errors per Memory Sesi: 0001bab8     0001b888 00000010  0001b8b8 00000000 0
                    ebp: 00000001     0001b88c 00010012  0001b8bc 000000ec 0
                    esp: 0001b874     0001b890 0000000a  0001b8c0 0000000a 0
                                      0001b894 00000028  0001b8c4 00000028 0
CS:EIP: 89 07 39 fa 75 f1 83 ef 04 eb 0001b898 00010c27  0001b8c8 00db7fc0
(ESC)exit  (c)configuration  (SP)scrol0001b89c(037dfefcl_0001b8cc 0001a850
                                      0001b8a0 00000001  0001b8d0 0000001e

//Peter