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From "Ivan Popov (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HARMONY-3314) [drlvm][threads] DRLVM hangs on exit while detaching thread
Date Tue, 20 Mar 2007 16:36:32 GMT

     [ https://issues.apache.org/jira/browse/HARMONY-3314?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Ivan Popov updated HARMONY-3314:

    Component/s: DRLVM
        Summary: [drlvm][threads] DRLVM hangs on exit while detaching thread  (was: [jdktools][jpda]
JDWP tests on Linux/ia32 cause intermittent DRLVM crash at exit)

Since this problem relates to DRLVM kernel classes, I'm changing subject and linking this
issue to DRLVM component.

To reproduce it onehas to run JDWP test several times until it hangs and then attach gdb to
a hung debuggee JVM. It's better to use -Xint mode for debuggee JVM, otherwise gdb is not
able to print stack trace. Use the following command line to run test in a loop:

  cd working_jdktools
  while true; do \
    deploy/jdk/bin/java -classpath ../common_resources/depends/jars/junit_3.8.2/junit.jar:build/tests/classes
    -Djpda.settings.timeout=6000000 -Djpda.settings.debuggeeVMExtraOptions=-Xint \
    org.apache.harmony.jpda.tests.jdwp.Events.VMDeathTest ; \

The test usually hangs after printing the following string:

  Waiting for debuggee exit

> [drlvm][threads] DRLVM hangs on exit while detaching thread
> -----------------------------------------------------------
>                 Key: HARMONY-3314
>                 URL: https://issues.apache.org/jira/browse/HARMONY-3314
>             Project: Harmony
>          Issue Type: Bug
>          Components: DRLVM, JDK
>         Environment: Linux/ia32, Harmony-jdk-r514598
>            Reporter: Ivan Popov
> Many JDWP tests run long time on Linux because DRLVM intermittently crashed at exit.
> For example, the following test
>   org.apache.harmony.jpda.tests.jdwp.Events.VMDeathTest
> Here is typical diagnostics in the test output:
> Waiting for debuggee exit
> STDERR> Stack trace:
> STDERR> 	1: ?? (??:-1)
> STDERR> addr2line: '[heap]': No such file
> Ignoring exception in ProcessWaiter thread interrupted: java.lang.InterruptedException
> # ERROR: Enforced debuggee termination
> To reproduce this failure:
> 1. create Harmony JDK with federated build:
>     svn checkout https://svn.apache.org/repos/asf/harmony/enhanced/trunk
>     cd trunk
>     ant
> 2. goto jdktools directory, add junit to classpath, and run particular test:
>     cd working_jdktools
>     export CLASSPATH=<...>/trunk/common_resources/depends/jars/junit_3.8.2/junit.jar
>     ant test -Dbuild.module=jpda -Dtest.case=org.apache.harmony.jpda.tests.jdwp.Events.VMDeathTest
> 3. see results in <...>/trunk/working_jdktools/build/test_report/html/index.html
> It is possible also to run test directly from command line:
>    cd working_jdktools
>    deploy/jdk/bin/java -classpath ../common_resources/depends/jars/junit_3.8.2/junit.jar:build/tests/classes
>    org.apache.harmony.jpda.tests.jdwp.Events.VMDeathTest

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