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  1. JDK
  2. JDK-8194689

Failure with the -XX:+AggressiveHeap flag set on some Linux kernels

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: P4
    • Resolution: Duplicate
    • Affects Version/s: 10
    • Fix Version/s: None
    • Component/s: hotspot
    • Subcomponent:
      gc
    • CPU:
      generic
    • OS:
      linux

      Description

      Setting the -XX:+Aggressiveheap flag can cause a failure of the JVM to start up due to insufficient memory. This can happen on Linux systems with 64k pages set. This failure was caught with the JTReg test: TestAggressiveHeap.java.

      A simple run of java with the -XX:+AggressiveHeap flag set is shown below:

      $ java -XX:+AggressiveHeap -Xlog:os+container=trace
      [0.001s][trace][os,container] OSContainer::init: Initializing Container Support
      [0.002s][trace][os,container] Path to /memory.limit_in_bytes is /sys/fs/cgroup/memory/memory.limit_in_bytes
      [0.002s][trace][os,container] Memory Limit is: 9223372036854710272
      [0.002s][trace][os,container] Path to /memory.limit_in_bytes is /sys/fs/cgroup/memory/memory.limit_in_bytes
      [0.002s][trace][os,container] Memory Limit is: 9223372036854710272
      [0.002s][trace][os,container] Path to /cpu.shares is /sys/fs/cgroup/cpu,cpuacct/cpu.shares
      [0.002s][trace][os,container] CPU Shares is: 1024
      [0.002s][trace][os,container] Path to /cpu.cfs_quota_us is /sys/fs/cgroup/cpu,cpuacct/cpu.cfs_quota_us
      [0.002s][trace][os,container] CPU Quota is: -1
      [0.002s][trace][os,container] Path to /cpu.cfs_period_us is /sys/fs/cgroup/cpu,cpuacct/cpu.cfs_period_us
      [0.002s][trace][os,container] CPU Period is: 100000
      [0.002s][trace][os,container] OSContainer::active_processor_count: 48
      [0.003s][trace][os,container] Path to /memory.limit_in_bytes is /sys/fs/cgroup/memory/memory.limit_in_bytes
      [0.003s][trace][os,container] Memory Limit is: 9223372036854710272
      [0.005s][trace][os,container] Path to /cpu.shares is /sys/fs/cgroup/cpu,cpuacct/cpu.shares
      [0.005s][trace][os,container] CPU Shares is: 1024
      [0.005s][trace][os,container] Path to /cpu.cfs_quota_us is /sys/fs/cgroup/cpu,cpuacct/cpu.cfs_quota_us
      [0.005s][trace][os,container] CPU Quota is: -1
      [0.005s][trace][os,container] CPU Period is: 100000
      [0.005s][trace][os,container] OSContainer::active_processor_count: 48
      Error occurred during initialization of VM
      Could not reserve enough space for 4503599627370496KB object heap

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              Assignee:
              dstewart Daniel Stewart
              Reporter:
              dstewart Daniel Stewart
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                Created:
                Updated:
                Resolved: