I'm running Xubuntu 12.04 on a Dell 17R Insprion notebook and after the latest kernel upgrade to 3.2.0-59-generic I'm noticing constant disk activity. Some sample output of vmstat 1 is posted below, notice the "bo" column. Does anyone know what this is and/or what could be causing it? When I fall back to 3.2.0-58-generic the disk activity stops.
Code:
procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu----
r b swpd free buff cache si so bi bo in cs us sy id wa
0 1 0 6481108 237132 901652 0 0 0 1684 387 804 1 0 88 11
0 1 0 6480592 237132 901632 0 0 0 1836 415 872 1 1 88 11
0 1 0 6480784 237132 901628 0 0 0 1780 401 779 1 0 88 11
0 1 0 6480684 237132 901544 0 0 0 1688 408 754 1 0 88 11
0 1 0 6480752 237132 901632 0 0 0 1400 514 1009 2 0 87 11
0 1 0 6480832 237132 901564 0 0 0 1680 368 791 1 0 88 11
0 1 0 6480912 237132 901644 0 0 0 1440 350 709 1 0 88 11
0 1 0 6480752 237132 901644 0 0 0 800 263 470 0 0 88 12
0 1 0 6480600 237132 901676 0 0 0 1720 386 813 1 0 88 11
0 1 0 6480680 237132 901560 0 0 0 1540 346 739 1 0 88 11
0 1 0 6480760 237132 901644 0 0 0 940 272 516 1 0 88 12
0 1 0 6480716 237132 901680 0 0 0 1688 385 806 1 0 88 11
0 1 0 6480556 237132 901620 0 0 0 1860 431 900 1 0 88 11
0 1 0 6480540 237132 901620 0 0 0 1960 404 884 1 1 88 11
1 1 0 6480620 237132 901536 0 0 0 1680 368 787 1 0 88 11
0 1 0 6480684 237132 901536 0 0 0 1680 374 804 1 0 88 11
0 1 0 6480764 237132 901536 0 0 0 1932 423 885 1 0 88 11
0 1 0 6480628 237132 901620 0 0 0 1728 384 820 1 0 88 11
0 1 0 6480336 237132 901652 0 0 0 1540 359 739 1 0 88 11
0 1 0 6480540 237132 901620 0 0 0 1820 391 839 1 0 88 11
1 1 0 6480628 237132 901620 0 0 0 1820 401 857 1 0 88 11
0 1 0 6480724 237132 901652 0 0 0 1960 401 888 1 0 88 11
0 1 0 6480664 237132 901652 0 0 0 1960 401 891 1 0 88 11
0 1 0 6480528 237132 901620 0 0 0 1968 409 910 1 0 88 11
0 1 0 6480344 237132 901620 0 0 0 1500 351 739 1 0 88 11
0 1 0 6480416 237132 901620 0 0 0 1400 336 690 1 0 88 12
0 1 0 6480496 237132 901652 0 0 0 1680 380 797 1 0 88 11
0 1 0 6480576 237132 901552 0 0 0 2108 426 937 1 1 88 11
1 0 0 6480672 237132 901596 0 0 0 880 282 535 1 0 88 12
0 1 0 6480512 237132 901596 0 0 0 1788 373 797 1 0 88 11
0 1 0 6480376 237132 901512 0 0 0 1588 364 775 1 1 88 11
0 1 0 6480548 237132 901568 0 0 0 1680 367 804 1 0 88 11
0 1 0 6480752 237132 901596 0 0 0 1500 357 731 1 0 88 11
1 0 0 6480840 237132 901512 0 0 0 1580 362 770 1 0 88 11
0 1 0 6480912 237132 901564 0 0 0 1680 369 798 1 0 88 11
0 1 0 6480620 237132 901596 0 0 0 1080 310 596 0 0 88 12
0 1 0 6480468 237132 901596 0 0 0 1260 325 661 0 0 88 12
0 1 0 6480564 237132 901568 0 0 0 1724 378 820 1 0 88 11
0 1 0 6480652 237132 901616 0 0 0 1684 366 789 1 0 88 11
1 1 0 6480724 237132 901500 0 0 0 1500 345 725 1 0 88 11
0 1 0 6480656 237132 901552 0 0 0 1968 416 892 1 0 88 11
0 1 0 6480504 237132 901584 0 0 0 1440 348 727 1 0 88 11
0 1 0 6480360 237132 901500 0 0 0 1680 374 796 1 0 88 11
0 1 0 6480416 237132 901584 0 0 0 1220 306 620 0 0 88 12
0 1 0 6480520 237132 901500 0 0 0 1400 336 697 0 1 87 12
procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu----
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