RFR (XS) JDK-8025569: -XX:+CheckUnhandledOops crashes on Windows

[Christian Tornqvist]

Hi Lois,

 

Looks good, might be worth clarifying that this disables CheckUnhandledOops for both 32 and 64-bit Windows.

 

Thanks,

Christian 

 

From: hotspot-runtime-dev-bounces at openjdk.java.net [mailto:hotspot-runtime-dev-bounces at openjdk.java.net] On Behalf Of Lois Foltan
Sent: Tuesday, October 1, 2013 4:51 PM
To: hotspot-runtime-dev at openjdk.java.net; build-dev at openjdk.java.net
Subject: RFR (XS) JDK-8025569: -XX:+CheckUnhandledOops crashes on Windows

 

 

Please review the following fix: 

Webrev: 
    http://cr.openjdk.java.net/~coleenp/bug_jdk8025569/

Bug: -XX:+CheckUnhandledOops crashes on Windows
    https://bugs.openjdk.java.net/browse/JDK-8025569

Summary of fix: 
    Until JDK-8024364, <https://bugs.openjdk.java.net/browse/JDK-8024364>  (Win/x64: os::current_frame() and os::fetch_frame_from_context() returns wrong frame pointer),
    is fixed, -XX:+CheckUnhandledOops can not be supported for Windows fastdebug builds due to the need to have 
    a legitimate frame returned from os::current_frame() early on in universe_post_init() to register & deregister oops.

Tests: 
        JTREG on Windows (in progress)

Thank you, Lois