HP (Hewlett-Packard) 5992-1918 Manual Do Utilizador

runtime environment variable values, run the following command under the same environment
(that is, the same user) that the Java application was executed:

(ksh)$ env > app_environment.txt
(csh)$ getenv > app_environment.txt

Include the app_environment.txt file when you send in your collected data files to
Hewlett-Packard.

3.4.2 Libraries

In order to perform core file analysis, you must have access to libraries used by the failed
application. The method used for determining which libraries were used depends on whether
or not gdb is available on the system.

If gdb is not available, then locate files by either examining the stdout of the failed application
or the hs_err_pid<pid>.log file. Either of these should list all the libraries used. Using this
list, manually copy the files.

If gdb is available on the system where the failure occurred, issue gdb's packcore command:

(gdb) packcore

This command creates a compressed tar file called packcore.tar.Z under the current directory.
packcore.tar.Z

contains the following:

•

modules.tar

–a tar file containing all the libraries used by the application. Following is

a listing of an example modules.tar file:

$ tar -tvf modules.tar
-r-xr-xr-x root/sys 130744 2006-04-14 12:01 java
-r-xr-xr-x bin/bin 249856 2005-07-01 01:54 dld.sl
-r-xr-xr-x root/sys 15581184 2006-04-14 12:02 libjvm.sl
-r-xr-xr-x bin/bin 360448 2004-08-30 11:23 libpthread.1
-r-xr-xr-x bin/bin 282624 2004-07-09 14:00 libm.2
-r-xr-xr-x bin/bin 32768 2004-08-26 18:53 librt.2
-r-xr-xr-x bin/bin 1261568 2004-03-26 00:00 libcl.2
-r-xr-xr-x bin/bin 12288 2003-09-03 00:00 libisamstub.1
-r-xr-xr-x bin/bin 217088 2004-12-23 09:36 libCsup.2
-r-xr-xr-x bin/bin 1933312 2005-08-31 22:01 libc.2
-r-xr-xr-x bin/bin 24576 2005-07-01 01:54 libdld.2
-r-xr-xr-x bin/bin 77024 2004-07-27 16:29 libogltls.sl
-r-xr-xr-x root/sys 110592 2006-04-14 12:02 libhpi.sl
-r-xr-xr-x root/sys 86016 2006-04-14 12:02 libverify.sl
-r-xr-xr-x root/sys 266240 2006-04-14 12:02 libjava.sl
-r-xr-xr-x root/sys 110592 2006-04-14 12:02 libzip.sl
-rwxr-xr-x user1/lang 12288 2007-03-02 14:31 libstacktrace.sl

•

progname.txt

–the name of the program that core dumped; in this case, it is java,

•

core

–the core file.

In some situations, only a core file can be obtained. In this case limited troubleshooting can take
place since some crucial pieces of information are missing

There is one additional library that should be collected: libjunwind. This library is used by
gdb

to unwind Java bytecode frames; its routines help make stack traces more readable and

understandable. Since this library is only used during debugging, it is not included in the tar
file generated by packcore.

The following table shows the location of the libjunwind library for PA-RISC applications:

3.4 Collecting Java Environment Information