pagesize is 4096
pagesizemask is 0xfffff000
want 10MB (10485760 bytes)
got  10MB (10485760 bytes), trying mlock ...locked.
Loop 1:
  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          : testing   0WRITE FAILURE: 0xffffffff != 0xff8bffff at offset 0x004e4788 (solidbits).
  Block Sequential    : testing 223WRITE FAILURE: 0xdfdedfdf != 0xdfdfdfdf at offset 0x00447000 (blockseq).
  Checkerboard        : ok
  Bit Spread          : testing   5WRITE FAILURE: 0xffffffdf != 0xffffff5f at offset 0x004981c4 (bitspread).
  Bit Flip            : testing   0WRITE FAILURE: 0xfffffffe != 0xff00fffe at offset 0x004d6288 (bitflip).
  Walking Ones        : testing   0WRITE FAILURE: 0xfffffffe != 0xff00fffe at offset 0x0026d03c (walkbits1).
  Walking Zeroes      : ok