RFR (XS) JDK-8010389 - After fix for 7107135 a failed dlopen() call results in a VM crash

[Christian Tornqvist]

Hi Ioi,

 

Adding ’-Djava.library.path=.’ to the @run tag seems to work.

 

Thanks,

Christian

 

From: Ioi Lam [mailto:ioi.lam at oracle.com] 
Sent: den 21 mars 2013 05:22
To: hotspot-runtime-dev at openjdk.java.net; Christian Törnqvist
Subject: RFR (XS) JDK-8010389 - After fix for 7107135 a failed dlopen() call
results in a VM crash

 

Please review:

http://cr.openjdk.java.net/~iklam/8010389/dlopen_crash_001/
<http://cr.openjdk.java.net/%7Eiklam/8010389/dlopen_crash_001/> 

Bug: After fix for 7107135 a failed dlopen() call results in a VM crash

http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=8010389
https://jbs.oracle.com/bugs/browse/JDK-8010389

    (The bugs.sun.com page may be unavailable for a couple of days) 

Summary of fix: 

    Previously, if dlopen() fails inside the VM Thread, the Java thread
would 
    call dlerror() to try to find out what happened, but would get a NULL
return
    instead. Attempts to use this NULL value causes the JVM to crash.

    The fix is to read dlerror() in the VM Thread when necessary.

To Christian:

    I integrated your test into jtreg, but I needed to write a shell test to
set
    the LD_LIBRARY_PATH. Is there a way to avoid the shell test?

Tests executed: 

    * JPRT (linux only)
    * UTE (vm.quick.testlist) 
    * JTREG

Thanks,
Ioi 

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