https://bugzilla.novell.com/show_bug.cgi?id=340143#c1
--- Comment #1 from Lenz Grimmer 2007-11-19 03:25:01 MST ---
It happened again about three times in the past week now. This is becoming a
major nuisance! The swapping behaviour is fine for 1-2 days, then all the
sudden the VM decides to swap out everything, and keeping lots of memory
completely unused! For reference, a few more outputs of "free" and "vmstat 3"
when this happens (when I still had a chance to regain control of the system,
several time I had to do a hard reboot as it became totally unresponsive due to
the massive swapping activity):
lenz@metis:~> free
total used free shared buffers cached
Mem: 1035332 580528 454804 0 18392 59008
-/+ buffers/cache: 503128 532204
Swap: 1253028 659480 593548
lenz@metis:~> vmstat 3
procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu----
r b swpd free buff cache si so bi bo in cs us sy id wa
1 5 657800 450688 18616 58592 158 57 148 31 0 130 9 3 65 24
3 5 657052 448304 18336 59104 743 0 1215 13 450 890 2 3 0 95
0 7 654352 448912 18184 58996 1031 0 1496 83 479 1110 7 3 0 90
2 5 653404 447764 18308 59232 801 0 1196 11 464 1116 9 3 0 88
2 6 652816 447040 18056 59920 747 0 1555 77 470 952 4 3 0 93
0 4 651928 445580 17992 61392 384 0 1320 9 419 963 11 2 0 88
1 3 648976 454452 18232 61412 436 0 1239 65 446 958 3 2 0 95
0 3 648796 454360 18312 60912 380 0 985 8 409 965 4 2 0 94
2 3 648600 458220 18196 57192 357 0 547 164 423 972 3 2 0 95
2 6 648416 456612 18268 57688 283 0 933 7 422 1017 6 3 0 92
lenz@metis:~> free
total used free shared buffers cached
Mem: 1035332 451920 583412 0 19740 64140
-/+ buffers/cache: 368040 667292
Swap: 1253028 713732 539296
lenz@metis:~> vmstat 3
procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu----
r b swpd free buff cache si so bi bo in cs us sy id wa
0 4 713556 579576 20020 65604 159 58 151 32 2 133 9 3 65 24
0 7 713792 578804 20020 65616 743 484 759 528 491 938 3 1 0 95
0 7 713472 577432 20168 65964 819 356 949 373 480 998 4 2 0 94
2 5 712720 572712 20252 67724 1149 145 1760 145 466 976 1 2 0 97
2 5 711408 563600 20252 67964 1512 189 1585 189 484 1101 7 5 0 89
3 7 710140 564536 20252 68052 1272 133 1304 133 474 1034 3 3 0 95
2 6 708360 559900 20252 68120 1763 136 1767 136 480 992 6 4 0 91
3 6 706816 554800 20280 68408 1803 111 1897 111 508 1037 6 3 0 92
0 7 704776 548848 20280 68372 1983 69 1983 69 474 1040 6 3 0 91
1 6 703056 544204 20292 68400 1700 145 1729 145 498 1043 4 2 0 95
0 6 702352 542020 20292 68352 1081 341 1081 341 504 1007 4 3 0 94
0 8 700364 535708 20412 68492 1833 51 1881 53 499 1035 3 2 0 95
5 8 698268 530180 20412 68488 1885 61 1885 99 482 1007 4 2 0 94
0 10 696584 525840 20512 68700 1575 185 1677 185 493 1004 4 2 0 94
5 8 694720 521544 20568 68756 1444 89 1476 91 483 1078 2 2 0 95
4 8 692708 517896 20620 69056 1623 128 1739 128 497 1122 2 2 0 96
2 7 691000 505064 26368 70400 1083 95 1491 1067 486 1752 22 7 0 72
3 5 690320 502560 26376 70920 941 291 1132 291 505 971 5 1 0 93
lenz@metis:~> uptime
8:50pm up 2 days 10:30, 3 users, load average: 5.38, 4.88, 4.72
lenz@metis:~> free
total used free shared buffers cached
Mem: 1035332 488736 546596 0 18628 45824
-/+ buffers/cache: 424284 611048
Swap: 1253028 587588 665440
lenz@metis:~> vmstat 3
procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu----
r b swpd free buff cache si so bi bo in cs us sy id wa
2 4 588048 545116 18776 46768 160 58 154 33 3 135 9 3 65 24
0 4 588560 544456 18784 47068 537 240 660 240 440 982 5 2 0 93
0 4 589428 542960 18796 47260 543 380 683 380 444 998 5 2 0 93
2 4 590116 541052 18800 47504 551 319 689 319 438 978 5 1 0 94
2 4 591028 540860 18800 47684 361 407 524 407 426 970 5 2 0 93
0 5 591560 539300 18856 48408 469 268 724 275 430 992 4 2 0 94
0 5 593040 548544 18836 44932 55 1105 61 1109 459 745 2 4 0 95
2 4 596056 560460 18768 41152 253 1283 339 1339 447 818 2 9 0 89
2 4 598124 562960 18808 37336 531 836 801 844 433 935 3 2 0 95
0 4 599136 562208 18896 37864 467 399 673 399 431 879 3 2 0 95
1 5 599968 560936 18976 39216 447 335 912 351 468 923 2 3 0 94
lenz@metis:~> uptime ; free ; vmstat 3
9:05pm up 2 days 10:46, 3 users, load average: 7.29, 5.90, 5.40
total used free shared buffers cached
Mem: 1035332 263200 772132 0 21012 40884
-/+ buffers/cache: 201304 834028
Swap: 1253028 416988 836040
procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu----
r b swpd free buff cache si so bi bo in cs us sy id wa
0 4 416988 772192 21016 40952 161 59 158 34 5 140 9 3 64 24
3 1 416988 773508 22252 38152 148 0 807 580 480 1089 6 2 0 92
3 3 416988 773520 22184 38008 127 0 479 432 444 929 7 2 0 91
0 4 416988 777224 20636 35812 105 0 220 715 504 806 2 3 0 96
0 6 419496 785284 20688 34484 128 1467 179 1540 474 758 2 6 0 92
0 8 419232 784772 20764 37824 589 316 1796 316 461 852 2 2 0 95
1 5 419220 779676 20828 40536 855 0 1775 0 478 1008 5 3 0 93
2 4 419340 777172 20912 42528 467 212 1341 212 461 890 2 1 0 97
1 4 419812 776512 20916 43332 429 535 808 535 677 2229 10 8 0 82
0 4 420196 776584 21252 43780 176 468 748 469 449 801 4 2 0 94
0 6 420780 774296 21768 45008 517 439 647 1108 446 1027 11 3 0 87
9 4 421356 785148 21384 36048 489 280 789 451 464 944 2 3 0 95
1 5 421340 792644 20636 33868 204 0 907 349 477 929 4 6 0 90
0 4 421340 790544 20720 34632 443 0 1195 309 455 874 4 5 0 91
2 4 421340 787224 22156 36880 96 0 1573 584 482 967 7 6 0 87
9:22pm up 2 days 11:02, 3 users, load average: 12.06, 8.34, 6.85
total used free shared buffers cached
Mem: 1035332 373176 662156 0 46184 75740
-/+ buffers/cache: 251252 784080
Swap: 1253028 465028 788000
procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu----
r b swpd free buff cache si so bi bo in cs us sy id wa
0 7 465008 662316 45896 76072 162 59 162 37 7 145 9 3 64 25
0 8 465008 665056 42912 72996 529 0 1264 1568 454 1324 7 6 0 86
0 10 465008 668204 39656 71804 512 0 1009 1575 449 1320 7 5 0 88
0 9 465008 669176 38240 71464 400 0 1589 519 458 1232 3 3 0 93
1 7 465008 669248 35732 72328 461 0 1688 919 468 1438 4 6 0 91
0 7 465008 670040 35348 72152 640 0 1008 819 458 1229 1 4 0 94
0 8 465008 668880 35812 71576 517 0 1535 255 460 1118 6 4 0 90
0 8 465008 678044 28996 68872 519 0 749 721 441 1089 5 2 0 92
2 7 465008 674796 28428 70788 363 0 2211 273 455 1214 7 4 0 90
1 7 465008 682396 23780 68536 237 0 1085 269 460 1213 2 4 0 94
2 8 465008 676716 22308 75096 619 0 3811 108 477 1161 4 3 0 93
0 6 465008 683012 21676 69156 215 0 1308 131 429 1061 3 4 0 94
0 6 465008 684452 21436 67848 263 0 1568 143 457 1064 8 3 0 90
0 7 465008 685808 22656 64916 209 0 2072 436 459 1412 3 6 0 91
0 6 465008 670452 23252 72708 320 0 3844 333 498 1402 14 6 0 80
9:40am up 4 days 16:11, 6 users, load average: 4.33, 4.95, 4.42
total used free shared buffers cached
Mem: 1035332 324752 710580 0 14456 34864
-/+ buffers/cache: 275432 759900
Swap: 1253028 638940 614088
procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu----
r b swpd free buff cache si so bi bo in cs us sy id wa
1 4 644676 708020 15132 36840 13 8 50 81 94 8 19 3 73 4
0 5 645040 705952 15164 38680 612 348 1289 368 335 611 5 2 0 93
0 3 645072 703100 15240 39952 720 281 1217 299 356 713 4 5 0 90
0 4 644528 714168 14768 34740 912 28 1160 55 358 751 4 5 0 90
0 3 643820 715024 15024 36052 1000 0 1489 76 359 686 7 4 0 89
0 3 643116 714736 14968 34600 1125 0 1251 103 371 682 2 2 0 95
0 3 642536 712344 14916 36588 947 0 1753 11 349 664 3 2 0 95
0 2 641920 712160 14860 34992 1053 0 1213 79 374 733 3 3 0 94
0 2 641312 711484 14728 34772 1031 0 1116 17 343 653 2 2 0 96
1 4 640804 709716 14652 35964 895 0 1403 21 348 688 5 2 0 93
0 3 640308 709464 14796 35268 847 0 1093 60 337 628 5 3 0 92
0 2 639724 707948 14696 35928 965 0 1399 16 378 677 3 3 0 94
2 2 639156 709496 14680 34632 885 0 885 123 361 754 1 2 0 97
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