CFV: New Project: PowerPC/AIX Port

Wed May 16 08:42:32 UTC 2012

Hi David,

I hope you are not right. I've sent the CFV to the announce list as requested in [1].
However the announce list is a moderated list and I could not influence the fact that
the mail which was finally posted to the subscribers of the list had the "reply-to" field
set to the discuss list.

This was confusing for me as well, but after looking at the previous CFVs (i.e. "Code Tools",
"Graal", "Penrose") I realized that they were all run in this way. Moreover [2] ultimately
suggests that the votes should be sent to the discuss list, so I suppose that inserting the 
"reply-to" field into the CFV's is just a courtesy of the announce list moderator (you should
probably ask Mark for the details because he runs the list).

So I think for now, until nobody else corrects me, it is unnecessary for anybody to re-send 
their votes.

With best regards,
Volker

[1] http://openjdk.java.net/projects/#new-project-propose
[2] http://openjdk.java.net/projects/#new-project-vote

________________________________________
From: David Holmes [david.holmes at oracle.com]
Sent: Wednesday, May 16, 2012 5:13 AM
To: Simonis, Volker
Cc: discuss at openjdk.java.net; announce at openjdk.java.net
Subject: Re: CFV: New Project: PowerPC/AIX Port

Volker,

Your reply-to was set to the discuss list but the mail was sent to the
announce list, and the votes should go to the announce list not the
discuss list.

Anyone who already voted on the discuss list should re-send their votes
to the announce list.

David

On 15/05/2012 12:46 AM, Simonis, Volker wrote:
> I hereby propose the creation of the "PowerPC/AIX Port" Project with
> Volker Simonis as the Lead and the Porters Group as the sponsoring Group.
>
> The goal of the project will be to provide full-featured and certifiable
> version of the OpenJDK on the Linux/PowerPC and AIX/PowerPC platforms which can
> be ultimately integrated into the main OpenJDK development branch.
>
> Besides the very fact that this project will enrich the OpenJDK platform
> coverage with two new platforms we see two more main benefits. By supporting
> the PowerPC architecture we will add the first weak memory architecture to the
> OpenJDK. As we already know from past experience, this will unveil all kinds
> of intricate memory ordering problems. Moreover, adding AIX as a new Unix
> flavor to the set of supported operating systems will uncover numerous
> implicit assumptions and shortcuts inside the code base which only hold true
> for Linux and Solaris. We strongly believe that fixing these issues will
> considerably increase the robustness and further portability of the OpenJDK.
>
> The technical approach and a brief project agenda are as follows:
> - provide an interpreter-only version of HotSpot based on the
>    CPP interpreter on Linux/PPC64
> - provide a full set of tools and class libraries for AIX and
>    Linux on PPC32/64
> - provide a complete certifiable JDK 7 on Linux/PPC64
> - provide a complete certifiable JDK 7 on AIX/PPC64
> - provide an implementation of the C2 server compiler on both
>    AIX/PPC64 and Linux/PPC64
> - integrate the new ports upstream into the main JDK8/9 branches
>
> To assist with project bootstrapping and maintain momentum of VM porting issues
> independently from class library issues the project will evolve an interface
> between the VM and class libraries that allows alternative implementations to
> be substituted (see [3]). The project will start by porting the stable JDK 7
> code base with a view to moving onto the JDK 8 stream as soon as practical.
>
> The project will have one, complete OpenJDK forest which will be initially
> cloned from the current jdk7u forest as well as a project mailing list and web
> site. We plan to start the project without a formal review process but this may
> change by the time the port gets more mature.
>
> The project will initially be driven jointly by IBM and SAP who both have a
> long-standing experience in developing and porting JDKs to various platforms
> including Linux/PowerPC and AIX/PowerPC. But as this is an open source project
> of course anybody interested is highly welcome to join the porting effort. The
> complete development process and discussions will happen in the open on the
> project mailing list.
>
> I will lead the project. I work for SAP in the SAP JVM JIT Compiling Technology
> group since more than 6 years and I'm an OpenJDK contributor right from the
> start (see [4], [5]).
>
> The initial committers will be:
> Jonathan Lu (IBM)
> Steve Poole (IBM)
> Neil Richards (IBM)
> Goetz Lindenmaier (SAP)
> Volker Simonis (SAP)
>
> Votes are due by May 28, 2012, 18:00 CET [6].
>
> Only current OpenJDK Members [1] are eligible to vote on this
> motion. Votes must be case in the open by replying to to this
> mailing list.
>
> For Lazy Consensus voting instructions, see [2].
>
> Volker Simonis
>
> [1] http://openjdk.java.net/census#members
> [2] http://openjdk.java.net/projects/#new-project-vote
> [3] http://mail.openjdk.java.net/pipermail/discuss/2012-May/002629.html
> [4] http://hg.openjdk.java.net/hsx/hotspot-main/hotspot/log?rev=simonis
> [5] http://hg.openjdk.java.net/jdk7/hotspot/hotspot/log?rev=simonis
> [6] http://www.timeanddate.com/worldclock/fixedtime.html?msg=CFV%3A+New+Project%3A+PowerPC%2FAIX+Port&iso=20120528T18&p1=991