Code Review request for bug fixes found by the Contended Locking project
Daniel D. Daugherty
daniel.daugherty at oracle.com
Thu Jan 17 13:22:30 PST 2013
On 1/17/13 2:21 PM, serguei.spitsyn at oracle.com wrote:
> The fixes look good.
> On 1/17/13 10:45 AM, Daniel D. Daugherty wrote:
>> I have been working on the Contended Locking project and there are some
>> bug fixes that I'd like to push into HSX-25 independently of the
>> Locking project.
>> I'm using three different bug IDs to track these very distinct bug
>> 6444286 Possible naked oop related to biased locking revocation
>> safepoint in jni_exit()
>> 8004902 correctness fixes motivated by contended locking work
>> 8004903 VMThread::execute() calls
>> on concurrent VM ops
>> Here is the URL for the webrev:
>> These changes have been through two internal rounds of code review so I
>> think they are ready for wider review. The changes for 8004902 are very
>> tricky and there is long write-up attached to the 8004902 bug report
>> explains the intricate details of the "triangular race". The changes for
>> 6444286 and 8004903 are more straight forward.
>> These changes have been through JPRT build-and-test and have also been
>> tested with the vm.parallel_class_loading and vm.quick subsuites via
>> the Aurora ad-hoc testing mechanism.
>> The current set of reviewers is:
>> acorn, dholmes, dice
>> As always, other reviewers are welcome. Comments, questions and
>> suggestions are also welcome.
More information about the hotspot-runtime-dev