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

[Lois Foltan]

On 10/2/2013 8:23 AM, Christian Tornqvist wrote:
>
> Hi Lois,
>
> Looks good, might be worth clarifying that this disables 
> CheckUnhandledOops for both 32 and 64-bit Windows.
>
Hi Christian,
Thank you for the review.  I will update the the bug with this 
information and include it in the summary for the fix.
Lois
>
> 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/ 
> <http://cr.openjdk.java.net/%7Ecoleenp/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
>