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memtest

memtest​

curl -LO http://www.memtest.org/download/5.31b/memtest86+-5.31b.iso.zip
unzip memtest86+-5.31b.iso.zip

sudo dd bs=4M if=mt531b.iso of=/dev/sdb conv=fdatasync
sudo dd bs=4M if=memtest86+-5.31b.bin of=/dev/sdb conv=fdatasync
# 检查部分内存
memtester -p 0xfce20000 64k 128

memtester

  • memtester
  • jnavila/memtester
  • https://github.com/jnavila/memtester/blob/master/memtester.8
  • MEMTESTER_TEST_MASK
  • test_stuck_address
  • test_random_value
  • test_xor_comparison
  • test_sub_comparison
  • test_mul_comparison
  • test_div_comparison
  • test_or_comparison
  • test_and_comparison
  • test_solidbits_comparison
  • test_checkerboard_comparison
  • test_blockseq_comparison
  • test_walkbits0_comparison
  • test_walkbits1_comparison
  • test_bitspread_comparison
  • test_bitflip_comparison
  • test_8bit_wide_random
  • test_16bit_wide_random
apk add memtester
# size iteratio
memtester 30G 1

trying mlock ...too many pages, reducing​

用 root 账号