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  1. JDK
  2. JDK-4027562

Java VM - file descriptor problems with child processes

    Details

    • Subcomponent:
    • CPU:
      generic
    • OS:
      solaris_2.5

      Description

      We have been running into a potential problem
      in the VM regarding the monitor table they use in the green
      threads library. The problem shows up in our cartridge
      when a Java program tries to create a new child process.
      After debugging the source code, I found out that the fd_mon
      table has not been dynamically resized properly and as a result
      when new file descriptors are being allocated for the parent
      and child processes (e.g. pipes) an ASSERT statement fails
      because the fd_mon entry returned NULL instead of an initialized
      monitor. After increasing the no. of preallocated fds slightly,
      the problem goes away. But we'd still like to get a patch
      from Sun if possible for our upcoming release.

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            • Assignee:
              never Tom Rodriguez
              Reporter:
              duke J. Duke (Inactive)
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