Return-Path: Delivered-To: apmail-harmony-dev-archive@www.apache.org Received: (qmail 595 invoked from network); 16 May 2009 09:05:20 -0000 Received: from hermes.apache.org (HELO mail.apache.org) (140.211.11.3) by minotaur.apache.org with SMTP; 16 May 2009 09:05:20 -0000 Received: (qmail 64751 invoked by uid 500); 16 May 2009 09:05:20 -0000 Delivered-To: apmail-harmony-dev-archive@harmony.apache.org Received: (qmail 64675 invoked by uid 500); 16 May 2009 09:05:19 -0000 Mailing-List: contact dev-help@harmony.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@harmony.apache.org Delivered-To: mailing list dev@harmony.apache.org Received: (qmail 64664 invoked by uid 99); 16 May 2009 09:05:19 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Sat, 16 May 2009 09:05:19 +0000 X-ASF-Spam-Status: No, hits=2.2 required=10.0 tests=HTML_MESSAGE,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (athena.apache.org: domain of simon.harmony@gmail.com designates 74.125.44.157 as permitted sender) Received: from [74.125.44.157] (HELO yx-out-1718.google.com) (74.125.44.157) by apache.org (qpsmtpd/0.29) with ESMTP; Sat, 16 May 2009 09:05:11 +0000 Received: by yx-out-1718.google.com with SMTP id 3so1467336yxi.0 for ; Sat, 16 May 2009 02:04:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:content-type; bh=WHaxHjA2dgyzpLKVgaSJYhBadbdciLpkidqsIiVubsE=; b=JNhUTulLDMgmYUgbM3cFhwQL7B3ODfFtT7QSmLVBi3KRXsSB/uLX+byftTIio9W77p Q8ZXbPzor99WPN0pbdCfizGFDjDxsLrPIsKX4mQMtKeeNVVnZsw5jGU54mhN2vw/5+R9 oi6LzFw2y0K1yowdNLDDc/l1Iirx6fUnPrhMA= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; b=P3UYUaLx43S+ANoYAo3AqDnrg/+vUi289unxYrvBiOZMiwkf2JDVH7QKO0ZpVMNkGC u5QtxnoDrTLbrEC2QlLAqT8Fi0UhyT9rjzuIopFI5CyfxvSe5z5MTze4w6Z8WpJsqXnc wyYJG5sHjfGPlOqQ1/oie7oOHsCG2mH6RPsCU= MIME-Version: 1.0 Received: by 10.150.121.9 with SMTP id t9mr7847266ybc.88.1242464691000; Sat, 16 May 2009 02:04:51 -0700 (PDT) In-Reply-To: <3db9f87f0905152305p64766516wb733ea79979be4ba@mail.gmail.com> References: <3db9f87f0905152305p64766516wb733ea79979be4ba@mail.gmail.com> Date: Sat, 16 May 2009 17:04:50 +0800 Message-ID: <3db9f87f0905160204q2556c2b9m25fbff88d1e76a4d@mail.gmail.com> Subject: Re: [drlvm][jitrino] write barrier was broken From: Simon Zhou To: dev@harmony.apache.org Content-Type: multipart/alternative; boundary=000e0cd6a86a8d9463046a03da09 X-Virus-Checked: Checked by ClamAV on apache.org --000e0cd6a86a8d9463046a03da09 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit I think I found the origin of this issue by binary searching the previous patches, I foud that it is broken since version 747844 (747843 is OK), so I am guessing the patch of 5826 breaks this. To replay the error, just add -XX:gc.generate_barrier=true to command line when running a Java application. I added some of my guesswork in https://issues.apache.org/jira/browse/HARMONY-5826 Xiaoming, Would you like to give me advice for this issue? Or is there some workaroud for it? Thank you very much! Thanks Simon 2009/5/16 Simon Zhou > Hi All, > > I am doing my GSoC2009 project of implementing weak reference in > Concurrent GC. I found that as long as the gc.generate_barrier=true is set, > VM will crash when it startups (int vm_init2() method). I was following this > issue these days but did not work out. > This issue seem to come out after milestone8, so I guess it could be > caused by some patches on Jitrino after M8. > Is there anyone else being aware of that? Or could you please provide > some information about which patch could cause it? > Thank you very much! > > Thanks > Simon > > -- > From : Simon.Zhou@PPI, Fudan University > -- >From : Simon.Zhou@PPI, Fudan University --000e0cd6a86a8d9463046a03da09--