root@pos-periph:~# ./memtester 256M 10
memtester version 4.3.0 (64-bit)
Copyright (C) 2001-2012 Charles Cazabon.
Licensed under the GNU General Public License version 2 (only).

pagesize is 65536
pagesizemask is 0xffffffffffff0000
want 256MB (268435456 bytes)
got  256MB (268435456 bytes), trying mlock ...locked.
Loop 1/10:
  Stuck Address       : ok
  Random Value        : ok
  Compare XOR         : ok
  Compare SUB         : ok
  Compare MUL         : ok
  Compare DIV         : ok
  Compare OR          : ok
  Compare AND         : ok
  Sequential Increment: ok
  Solid Bits          : ok
  Block Sequential    : ok
  Checkerboard        : ok
  Bit Spread          : ok
  Bit Flip            : ok
  Walking Ones        : ok
  Walking Zeroes      : ok
  8-bit Writes        : ok
  16-bit Writes       : ok

Loop 2/10:
  Stuck Address       : ok
  Random Value        : ok
FAILURE: 0xd52040aec91f2e48 != 0xd52040aec9172e48 at offset 0x07127db8.
  Compare XOR         : FAILURE: 0xad2339e74d632e9f != 0xad2339e74d5b2e9f at offset 0x07127db8.
  Compare SUB         : FAILURE: 0x5cdd3b828fc90343 != 0xe0a483e4a8e10343 at offset 0x07127db8.
  Compare MUL         : FAILURE: 0x00000000 != 0x00000001 at offset 0x07127db8.
  Compare DIV         :   Compare OR          : ok
  Compare AND         : ok
  Sequential Increment: ok
  Solid Bits          : ok
  Block Sequential    : testing 104