Name: md23716 Date: 07/12/2001

1. Basic Info:

1.1 Platform (Solaris / Win32):

Solaris

1.2 Operating System Level/Version:

5.8

1.3 Specific Sun Release Information:

Solaris Production JDK 1.2.2_08

1.4 Known existing SUN Bug ID's (If Any):

None

2. Workarounds:

Don't use the "server=y" JPDA flag with the 1.2.2 Solaris JDK.

3. Test Case and Failure Data

Try to start any program with JPDA remote debugging enabled using "server=y":

java -Djava.compiler=NONE -Xdebug -Xnoagent -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8080 <class>

This produces the following error:

Error [4] in accept() call!
err:: Interrupted system call
Socket transport failed to init.
dt_socket transport error; accept failed, rc = -1

The same error occurs with "suspend=n":

java -Djava.compiler=NONE -Xdebug -Xnoagent -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=8080 <class>

Although the JVM continues to run the program, the debugger cannot attach.

However, the program can be debugged remotely using the "server=n" option:

java com.sun.tools.example.debug.tty.TTY -listen 8080

java -Djava.compiler=NONE -Xdebug -Xnoagent -Xrunjdwp:transport=dt_socket,server=n,address=8080 <class>

All these options work with the 1.3.0 HotSpot JDK.

4. Targeted FCS Release

1.2.2_10

5. Suggested Fix:

5.1 Overview:

Allow the JDWP accept call to restart when interrupted by SIGUSR2.

5.2 Documentation of how root cause of failure was determined

Truss output reveals the accept call is interrupted by SIGUSR2.

5.3 Alternative Fix(es) considered/tested with pros and cons

None

5.4 Results of IBM testing in application/customer environment

N/A

5.5 Regression test run status/results

N/A

5.6 JCK test run status

N/A


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