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  1. JDK
  2. JDK-4491951

On x86, "Attempt to protect stack guard pages failed" in tomcat testing

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    • Icon: Bug Bug
    • Resolution: Duplicate
    • Icon: P2 P2
    • None
    • 1.4.0
    • hotspot
    • x86
    • generic

      Tomcat is a new bigapps. We deployed the same test model as we used for JWS.
      Basically, it is:
      1. start Tomcat server
      2. run atg.core.net.URLHammer http://${SERVER}:${PORT}/index.html ${THREADS} ${COUNT} in a loop to create continuous workload for Tomcat server

      Tomcat is at:
      /net/jtgb4u4c/export/sail8/1.3bigapps/ws/master/dist/tomcat
      source code is under "src" directory.

      Output is captured in run.tomcat.out, output from tomcat server is captured
      in tomcat.server.out.

      Steps to run tomcat:
      1. export JAVA_HOME=<java installation dir>
      2. /bs/runtomcat.ksh -server/-client, etc... where /bs is a link to /net/jtgb4u4c.eng/export/sail8/1.3bigapps/tests


      With Merlin b75, On x86, there is warning message in each iteration.
      "Java HotSpot(TM) Server VM warning: Attempt to protect stack guard pages failed.
      Java HotSpot(TM) Server VM warning: Attempt to unprotect stack guard pages faile
      d."
      There is no such message on Sparc platform.

      ###@###.### 2001-08-14

            Unassigned Unassigned
            jzhongsunw June Zhong (Inactive)
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