[8u] RFR for backport of JDK-8170395: Metaspace initialization queries the wrong chunk freelist

Thomas Stüfe thomas.stuefe at gmail.com
Fri Nov 17 08:51:29 UTC 2017


Hi Muthusamy,

>From the look of it updated webrev looks fine, but I do not have the time
to build and check on jdk8u. I also would prefer that the gtests you
omitted should be part of the change (I think before there were gtests,
these kind of tests were implemented as file-local static test functions
and called I think via whitebox.cpp ? But I wait what others say.

Someone from Oracle should confirm this patch. Note that Mikael left
Oracle, I took him off the reply list because mail bounce.

Kind Regards, Thomas



On Thu, Nov 16, 2017 at 10:08 AM, Muthusamy Chinnathambi <
muthusamy.chinnathambi at oracle.com> wrote:

> Hi Thomas,
>
>
>
> Thanks for the review.
>
>
>
> > But are there gtests already in jdk8u? I thought gtests came with jdk9?
>
> > http://openjdk.java.net/jeps/281
>
> > If not, how does http://cr.openjdk.java.net/~
> mchinnathamb/8170395/webrev.00/test/native/memory/test_
> spaceManager.cpp.html run or even compile?
>
> Yes, you are right. "test_spaceManager.cpp" should not have been included
> here.
>
> Please find the updated webrev at http://cr.openjdk.java.net/~
> mchinnathamb/8170395/webrev.01/  .
>
>
>
> Regards,
>
> Muthusamy C
>
> *From:* Thomas Stüfe [mailto:thomas.stuefe at gmail.com]
> *Sent:* Wednesday, November 15, 2017 6:30 PM
> *To:* Muthusamy Chinnathambi <muthusamy.chinnathambi at oracle.com>
> *Cc:* HotSpot Open Source Developers <hotspot-dev at openjdk.java.net>;
> Mikael Gerdin <mikael.gerdin at oracle.com>; Per Liden <per.liden at oracle.com>;
> Stefan Karlsson <stefan.karlsson at oracle.com>; Stephen Fitch <
> stephen.fitch at oracle.com>
> *Subject:* Re: [8u] RFR for backport of JDK-8170395: Metaspace
> initialization queries the wrong chunk freelist
>
>
>
> Hi Muthusamy,
>
> Looks okay. But are there gtests already in jdk8u? I thought gtests came
> with jdk9?
>
> http://openjdk.java.net/jeps/281
>
> If not, how does http://cr.openjdk.java.net/~mchinnathamb/8170395/webrev.
> 00/test/native/memory/test_spaceManager.cpp.html run or even compile?
>
> Thanks, Thomas
>
>
>
> On Wed, Nov 15, 2017 at 11:19 AM, Muthusamy Chinnathambi <
> muthusamy.chinnathambi at oracle.com> wrote:
>
> Hi,
>
> Could someone please review this backport.
>
> Regards,
> Muthusamy C
>
> -----Original Message-----
> From: Muthusamy Chinnathambi
>
> Sent: Friday, November 10, 2017 3:27 PM
> To: HotSpot Open Source Developers <hotspot-dev at openjdk.java.net>
> Cc: Mikael Gerdin <mikael.gerdin at oracle.com>
> Subject: RE: [8u] RFR for backport of JDK-8170395: Metaspace
> initialization queries the wrong chunk freelist
>
> Hi,
>
> Can someone please review this.
>
> Thanks!
> Muthusamy C
>
> -----Original Message-----
> From: Muthusamy Chinnathambi
> Sent: Wednesday, November 8, 2017 11:24 AM
> To: Thomas Stüfe <thomas.stuefe at gmail.com>
> Cc: Mikael Gerdin <mikael.gerdin at oracle.com>; HotSpot Open Source
> Developers <hotspot-dev at openjdk.java.net>
> Subject: RE: [8u] RFR for backport of JDK-8170395: Metaspace
> initialization queries the wrong chunk freelist
>
> Hi Thomas,
>
>
>
> >  the webrev link seems to be dead.
>
> Sorry for the trouble.
>
> Please find the corrected link below
>
> http://cr.openjdk.java.net/~mchinnathamb/8170395/webrev.00/
>
>
>
> Somehow the line following the link got appended to the previous one
> leading to a dead link.
>
>
>
> Regards,
>
> Muthusamy C
>
>
>
> From: Thomas Stüfe [mailto:thomas.stuefe at gmail.com]
> Sent: Tuesday, November 7, 2017 8:12 PM
> To: Muthusamy Chinnathambi <muthusamy.chinnathambi at oracle.com>
> Cc: HotSpot Open Source Developers <hotspot-dev at openjdk.java.net>; Mikael
> Gerdin <mikael.gerdin at oracle.com>
> Subject: Re: [8u] RFR for backport of JDK-8170395: Metaspace
> initialization queries the wrong chunk freelist
>
>
>
> Hi Muthusamy,
>
>
>
> the webrev link seems to be dead.
>
>
>
> ..Thomas
>
>
>
> On Tue, Nov 7, 2017 at 10:05 AM, Muthusamy Chinnathambi <HYPERLINK "mailto:
> muthusamy.chinnathambi at oracle.com"muthusamy.chinnathambi at oracle.com>
> wrote:
>
> Hi,
>
> Please review the backport of bug: "JDK-8170395: Metaspace initialization
> queries the wrong chunk freelist" to jdk8u-dev
>
> Please note that this is not a clean backport due to new entries in
> debug.cpp and copyright changes.
>
>
> Webrev: HYPERLINK "http://cr.openjdk.java.net/~
> mchinnathamb/8170395/webrev.00/jdk9"http://cr.openjdk.
> java.net/~mchinnathamb/8170395/webrev.00/
> jdk9 bug: https://bugs.openjdk.java.net/browse/JDK-8170395
> Original patch pushed to jdk9: http://hg.openjdk.java.net/
> jdk9/jdk9/hotspot/rev/2e971a72675a
>
> Test:  Had run jtreg and jprt hotspot testsets.
>
> Regards,
> Muthusamy C
>
>
>
>
>


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