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L2 hackbench default with 1/100 irq

jintack
Mar 11th, 2016
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  1. root@kvm-guest:~# ./hackbench
  2. Running with 10*40 (== 400) tasks.
  3. [ 1749.317330] kvm [1547]: fault_ipa: f8e00000
  4. [ 1749.318069] kvm [1547]: pfn: 39e400
  5. [ 1749.391870] kvm [1547]: fault_ipa: f9a08000
  6. [ 1749.392600] kvm [1547]: pfn: 39e608
  7. [ 1749.488615] kvm [1547]: fault_ipa: f8800000
  8. [ 1749.489402] kvm [1547]: pfn: f3e00
  9. [ 1749.525879] kvm [1547]: fault_ipa: 13a000000
  10. [ 1749.526626] kvm [1547]: pfn: 39e000
  11. [ 1749.531797] kvm [1547]: fault_ipa: f8400000
  12. [ 1749.532522] kvm [1547]: pfn: 39e200
  13. [ 1749.569806] kvm [1547]: fault_ipa: f8a1a000
  14. [ 1749.570536] kvm [1547]: pfn: f381a
  15. [ 1749.665961] kvm [1547]: fault_ipa: f8010000
  16. [ 1749.666695] kvm [1547]: pfn: 39dc10
  17. [ 1749.700689] kvm [1547]: fault_ipa: f8600000
  18. [ 1749.701459] kvm [1547]: pfn: 39de00
  19. [ 1749.803763] kvm [1547]: fault_ipa: f8200000
  20. [ 1749.804501] kvm [1547]: pfn: f3a00
  21. [ 1749.878640] kvm [1547]: fault_ipa: f7c00000
  22. [ 1749.879370] kvm [1547]: pfn: 39d800
  23. [ 1749.911147] kvm [1547]: fault_ipa: f7806000
  24. [ 1749.911888] kvm [1547]: pfn: 39da06
  25. [ 1749.930383] kvm [1547]: fault_ipa: 139c08000
  26. [ 1749.931120] kvm [1547]: pfn: f3408
  27. [ 1750.009503] kvm [1547]: fault_ipa: f7a1a000
  28. [ 1750.010246] kvm [1547]: pfn: 39d41a
  29. [ 1750.137120] kvm [1547]: fault_ipa: f7e00000
  30. [ 1750.137852] kvm [1547]: pfn: f3600
  31. [ 1750.198207] kvm [1547]: fault_ipa: f7418000
  32. [ 1750.198925] kvm [1547]: pfn: 39d618
  33. [ 1750.217494] kvm [1547]: fault_ipa: 13a200000
  34. [ 1750.218233] kvm [1547]: pfn: 39d000
  35. [ 1750.287899] kvm [1547]: fault_ipa: f760c000
  36. [ 1750.288627] kvm [1547]: pfn: f300c
  37. [ 1750.402509] kvm [1547]: fault_ipa: 139e14000
  38. [ 1750.403253] kvm [1547]: pfn: 39d214
  39. [ 1750.422342] kvm [1547]: fault_ipa: f7000000
  40. [ 1750.423067] kvm [1547]: pfn: 39cc00
  41. [ 1750.463547] kvm [1547]: fault_ipa: f6c0c000
  42. [ 1750.464287] kvm [1547]: pfn: f320c
  43. [ 1751.163849] kvm [1547]: fault_ipa: f6e00000
  44. [ 1751.164583] kvm [1547]: pfn: 39ce00
  45. [ 1751.178356] kvm [1547]: fault_ipa: f6800000
  46. [ 1751.179086] kvm [1547]: pfn: 39c800
  47. [ 1751.184605] kvm [1547]: fault_ipa: 139800000
  48. [ 1751.185415] kvm [1547]: pfn: f2c00
  49. [ 1751.189348] kvm [1547]: fault_ipa: f6a00000
  50. [ 1751.190065] kvm [1547]: pfn: 39ca00
  51. [ 1751.247264] kvm [1547]: fault_ipa: f6400000
  52. [ 1751.248010] kvm [1547]: pfn: 39c400
  53. [ 1751.256187] kvm [1547]: fault_ipa: f6600000
  54. [ 1751.256916] kvm [1547]: pfn: f2e00
  55. [ 1752.122377] kvm [1547]: fault_ipa: f6000000
  56. [ 1752.123137] kvm [1547]: pfn: 39c600
  57. [ 1752.154468] kvm [1547]: fault_ipa: 139a00000
  58. [ 1752.155209] kvm [1547]: pfn: 39c000
  59. [ 1752.170721] kvm [1547]: fault_ipa: f6200000
  60. [ 1752.171449] kvm [1547]: pfn: f2800
  61. [ 1752.257245] kvm [1547]: fault_ipa: f5c00000
  62. [ 1752.257975] kvm [1547]: pfn: 39c200
  63. [ 1752.272216] kvm [1547]: fault_ipa: f5e00000
  64. [ 1752.272948] kvm [1547]: pfn: 39bc00
  65. [ 1752.278193] kvm [1547]: fault_ipa: 139400000
  66. [ 1752.278927] kvm [1547]: pfn: f2a00
  67. [ 1752.303953] kvm [1547]: fault_ipa: f5800000
  68. [ 1752.304686] kvm [1547]: pfn: 39be00
  69. [ 1760.182662] INFO: rcu_preempt detected stalls on CPUs/tasks:
  70. [ 1760.241678] Tasks blocked on level-0 rcu_node (CPUs 0-0): P2012
  71. [ 1760.304629] (detected by 0, t=5252 jiffies, g=3670, c=3669, q=415)
  72. [ 1760.370832] Call trace:
  73. [ 1760.402024] Call trace:
  74. [ 1813.375952] INFO: rcu_preempt detected stalls on CPUs/tasks:
  75. [ 1813.435507] Tasks blocked on level-0 rcu_node (CPUs 0-0): P2077 P2317 P2081 P2367 P2207
  76. [ 1813.527582] (detected by 0, t=5264 jiffies, g=3671, c=3670, q=1497)
  77. [ 1813.595154] Call trace:
  78. [ 1813.627488] Call trace:
  79. [ 1813.659888] Call trace:
  80. [ 1813.691617] Call trace:
  81. [ 1813.723673] Call trace:
  82. [ 1813.755725] Call trace:
  83. [ 1813.787287] Call trace:
  84. [ 1813.818472] Call trace:
  85. [ 1813.850512] Call trace:
  86. [ 1813.882070] Call trace:
  87. [ 1876.401419] INFO: rcu_preempt detected stalls on CPUs/tasks:
  88. [ 1876.460583] Tasks blocked on level-0 rcu_node (CPUs 0-0): P2317
  89. [ 1876.524256] (detected by 0, t=21021 jiffies, g=3671, c=3670, q=3076)
  90. [ 1876.592919] Call trace:
  91. [ 1876.624973] Call trace:
  92. [ 1941.389330] INFO: rcu_preempt detected stalls on CPUs/tasks:
  93. [ 1941.449219] Tasks blocked on level-0 rcu_node (CPUs 0-0): P2165 P2355 P2081 P2281 P2127 P2364
  94. [ 1941.547865] (detected by 0, t=5257 jiffies, g=3672, c=3671, q=3337)
  95. [ 1941.613967] Call trace:
  96. [ 1941.647612] Call trace:
  97. [ 1941.680199] Call trace:
  98. [ 1941.712265] Call trace:
  99. [ 1941.743997] Call trace:
  100. [ 1941.776084] Call trace:
  101. [ 1941.808101] Call trace:
  102. [ 1941.839837] Call trace:
  103. [ 1941.871852] Call trace:
  104. [ 1941.903608] Call trace:
  105. [ 1941.935751] Call trace:
  106. [ 1941.967775] Call trace:
  107. [ 2004.409853] INFO: rcu_preempt detected stalls on CPUs/tasks:
  108. [ 2004.468721] Tasks blocked on level-0 rcu_node (CPUs 0-0): P2355 P2364
  109. [ 2004.540232] (detected by 0, t=21012 jiffies, g=3672, c=3671, q=5136)
  110. [ 2004.608448] Call trace:
  111. [ 2004.641345] Call trace:
  112. [ 2004.673110] Call trace:
  113. [ 2004.704875] Call trace:
  114. [ 2054.785873] INFO: rcu_preempt detected stalls on CPUs/tasks:
  115. [ 2054.845530] Tasks blocked on level-0 rcu_node (CPUs 0-0): P2275 P2242 P2286 P2081 P2321
  116. [ 2054.938248] (detected by 0, t=5263 jiffies, g=3673, c=3672, q=3595)
  117. [ 2055.003879] Call trace:
  118. [ 2055.035983] Call trace:
  119. [ 2055.068473] Call trace:
  120. [ 2055.101016] Call trace:
  121. [ 2055.132826] Call trace:
  122. [ 2055.165278] Call trace:
  123. [ 2055.197840] Call trace:
  124. [ 2055.229679] Call trace:
  125. [ 2055.261841] Call trace:
  126. [ 2055.293239] Call trace:
  127. Time: 391.268
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