Thanks for chasing that down. I'm good with your change.

Dan


On 9/11/19 6:45 PM, Leonid Mesnik wrote:
Hi

It is still needed for
vframe *vf = vframeFor(java_thread, depth);

Leonid

On Sep 11, 2019, at 5:56 AM, Daniel D. Daugherty <daniel.daughe...@oracle.com <mailto:daniel.daughe...@oracle.com>> wrote:

On 9/11/19 1:06 AM, Leonid Mesnik wrote:
Hi

Thank you for feedback.

On Sep 10, 2019, at 10:03 PM, David Holmes <david.hol...@oracle.com <mailto:david.hol...@oracle.com>> wrote:

Hi Leonid,

On 11/09/2019 12:03 pm, Leonid Mesnik wrote:
Hi
Could you please review following tiny fix which just add ResourceMark in JvmtiSuspendControl::print() method.

Looks fine.

The method jvmtiSuspendControl::print() might used in custom builds only for debugging purposes. So I don't know when it was used last time. I found that it crashes when I tried to use it locally.

The only caller is JvmtiEnv::NotifyFramePop, under TraceJVMTICalls, and it already has a ResourceMark. So existing use is fine.

It explains why it works.

So the question that comes to my mind is whether the ResourceMark
that is in JvmtiEnv::NotifyFramePop() is needed for something
other than the JvmtiSuspendControl::print() call? If not, then
removing the one in JvmtiEnv::NotifyFramePop() in favor of the
one you added in JvmtiSuspendControl::print() is a good idea.

Dan


I used it to track status in suspend resume investigating https://bugs.openjdk.java.net/browse/JDK-8230459.


Please ensure you test with TraceJVMTICalls enabled.

Thanks, I have tested it with this macro enabled.

Leonid
Thanks,
David


webrev: http://cr.openjdk.java.net/~lmesnik/8230830/webrev.00/
bug: https://bugs.openjdk.java.net/browse/JDK-8230830
Leonid




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