Return-Path: Delivered-To: apmail-harmony-commits-archive@www.apache.org Received: (qmail 14854 invoked from network); 1 Dec 2006 14:18:53 -0000 Received: from hermes.apache.org (HELO mail.apache.org) (140.211.11.2) by minotaur.apache.org with SMTP; 1 Dec 2006 14:18:53 -0000 Received: (qmail 26877 invoked by uid 500); 1 Dec 2006 14:18:54 -0000 Delivered-To: apmail-harmony-commits-archive@harmony.apache.org Received: (qmail 26856 invoked by uid 500); 1 Dec 2006 14:18:54 -0000 Mailing-List: contact commits-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 commits@harmony.apache.org Received: (qmail 26843 invoked by uid 99); 1 Dec 2006 14:18:53 -0000 Received: from herse.apache.org (HELO herse.apache.org) (140.211.11.133) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 01 Dec 2006 06:18:53 -0800 X-ASF-Spam-Status: No, hits=0.0 required=10.0 tests= X-Spam-Check-By: apache.org Received: from [140.211.11.4] (HELO brutus.apache.org) (140.211.11.4) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 01 Dec 2006 06:18:44 -0800 Received: from brutus (localhost [127.0.0.1]) by brutus.apache.org (Postfix) with ESMTP id 4AF567142CD for ; Fri, 1 Dec 2006 06:18:24 -0800 (PST) Message-ID: <22812398.1164982704304.JavaMail.jira@brutus> Date: Fri, 1 Dec 2006 06:18:24 -0800 (PST) From: "Ruslan Scherbakov (JIRA)" To: commits@harmony.apache.org Subject: [jira] Commented: (HARMONY-2395) [drlvm][jvmti] GetObjectMonitorUsage does not return local references as expected by spec In-Reply-To: <5222177.1164982221049.JavaMail.jira@brutus> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Virus-Checked: Checked by ClamAV on apache.org [ http://issues.apache.org/jira/browse/HARMONY-2395?page=comments#action_12454913 ] Ruslan Scherbakov commented on HARMONY-2395: -------------------------------------------- Initially teh problem was found in the TPTP thread profiler which uses GetObjectMonitorUsage and DeleteLocalRef functions. The attached test case simulates its logic in the simplest manner. > [drlvm][jvmti] GetObjectMonitorUsage does not return local references as expected by spec > ------------------------------------------------------------------------------------------ > > Key: HARMONY-2395 > URL: http://issues.apache.org/jira/browse/HARMONY-2395 > Project: Harmony > Issue Type: Bug > Components: DRLVM > Environment: Windows/ia32, Linux/ia32 > Reporter: Ruslan Scherbakov > Attachments: JVMTI_MonTest.zip > > > According to JVMTI spec GetObjectMonitorUsage function should return local references in the monitor owner and in the wait and notify lists. Local refs returned by JVMTI or JNI function can be deleted by DeleteLocalRef. > However according to the test output below DRLVM does not return local ref. As a result it crashes some time after DeleteLocalRef for the owner of the jvmtiMonitorUsage structure. The same is for waiters/notify_waiters. SUN and JRockit work fine in this situation. > DRLVM>>> > ========================================================================================= > 2. run initial class WITH agent > Agent_OnLoad: pVM=010020A0, options=(null) > Agent_OnLoad: OK > 1. MonitorWait : thread=024D0B00, pJniEnv=01057288 > 2. MonitorContendedEnter : thread=024D0B00, pJniEnv=01057288 > MonitorUsage: invalid phase > 3. ThreadStart : thread=024E3F50, pJniEnv=024E20B8 > 4. MonitorContendedEntered: thread=024D0B00, pJniEnv=01057288 > 5. MonitorWaited : thread=024D0B00, pJniEnv=01057288 > 6. VMInit : thread=024D5730, pJniEnv=01057288 > 7. ThreadStart : thread=024D0B00, pJniEnv=01057288 > 8. MonitorWait : thread=024E3F50, pJniEnv=024E20B8 > 9. MonitorContendedEnter : thread=024E3F50, pJniEnv=024E20B8 > MonitorUsage: entry_count=1, waiter_count=1 > MonitorUsage: DeleteLocalRef owner =024E3F50 > [ThreadTest] START > 10. MonitorWait : thread=024D0B00, pJniEnv=01057288 > 11. MonitorContendedEnter : thread=024D0B00, pJniEnv=01057288 > ... > An unhandled error (4) has occurred. > ... > SUN>>> > ========================================================================================= > 2. run initial class WITH agent > Agent_OnLoad: pVM=6D82F610, options=(null) > Agent_OnLoad: OK > 1. ThreadStart : thread=00A87168, pJniEnv=00A865C8 > 2. MonitorWait : thread=00A87A18, pJniEnv=00A865C8 > 3. ThreadStart : thread=00A88788, pJniEnv=00A87BB0 > 4. MonitorWait : thread=00A88828, pJniEnv=00A87BB0 > 5. VMInit : thread=00A84698, pJniEnv=00036F10 > 6. ThreadStart : thread=00A92660, pJniEnv=00A90C80 > 7. ThreadStart : thread=00A84698, pJniEnv=00036F10 > [ThreadTest] START > [ThreadTest] buddy started > 8. ThreadStart : thread=00AA9168, pJniEnv=00A97938 > 9. MonitorContendedEnter : thread=00AA9208, pJniEnv=00A97938 > MonitorUsage: entry_count=1, waiter_count=0 > MonitorUsage: DeleteLocalRef owner =00AA9210 > 10. MonitorWait : thread=00A86138, pJniEnv=00036F10 > 11. MonitorContendedEntered: thread=00AA9208, pJniEnv=00A97938 > [ThreadTest] buddy run > 12. ThreadEnd : thread=00AA9168, pJniEnv=00A97938 > 13. MonitorWaited : thread=00A86138, pJniEnv=00036F10 > [ThreadTest] FINISH > 14. ThreadEnd : thread=00A84698, pJniEnv=00036F10 > 15. ThreadStart : thread=00A86420, pJniEnv=00036F10 > 16. ThreadEnd : thread=00A86420, pJniEnv=00036F10 > 17. VMDeath : thread=00000000, pJniEnv=00036F10 > JRockit>> > ========================================================================================= > 2. run initial class WITH agent > Agent_OnLoad: pVM=005ACF84, options=(null) > Agent_OnLoad: OK > 1. ThreadStart : thread=00394FC8, pJniEnv=0039510C > 2. ThreadStart : thread=40B88090, pJniEnv=40B881D4 > 3. ThreadStart : thread=40BCA738, pJniEnv=40BCA87C > 4. ThreadStart : thread=40BDCF08, pJniEnv=40BDD04C > 5. ThreadStart : thread=40BDD6C8, pJniEnv=40BDD80C > 6. ThreadStart : thread=40BFDBB0, pJniEnv=40BFDCF4 > 7. VMInit : thread=00394FC8, pJniEnv=0039510C > 8. ThreadStart : thread=411C39A8, pJniEnv=411C3AEC > 9. ThreadStart : thread=411C4258, pJniEnv=411C439C > [ThreadTest] START > [ThreadTest] buddy started > 10. MonitorWait : thread=00394FC8, pJniEnv=0039510C > 11. ThreadStart : thread=41213140, pJniEnv=41213284 > 12. MonitorContendedEnter : thread=41213140, pJniEnv=41213284 > MonitorUsage: entry_count=1, waiter_count=0 > MonitorUsage: DeleteLocalRef owner =41213344 > 13. MonitorWaited : thread=00394FC8, pJniEnv=0039510C > 14. MonitorWait : thread=00394FC8, pJniEnv=0039510C > 15. MonitorContendedEntered: thread=41213140, pJniEnv=41213284 > [ThreadTest] buddy run > 16. MonitorWaited : thread=00394FC8, pJniEnv=0039510C > 17. MonitorWait : thread=00394FC8, pJniEnv=0039510C > 18. MonitorContendedEnter : thread=41213140, pJniEnv=41213284 > MonitorUsage: entry_count=0, waiter_count=1 > 19. MonitorContendedEntered: thread=41213140, pJniEnv=41213284 > 20. ThreadEnd : thread=41213140, pJniEnv=41213284 > 21. MonitorWaited : thread=00394FC8, pJniEnv=0039510C > [ThreadTest] FINISH > 22. ThreadEnd : thread=00394FC8, pJniEnv=0039510C > 23. ThreadStart : thread=41215E98, pJniEnv=41215FDC > 24. ThreadEnd : thread=41215E98, pJniEnv=41215FDC > 25. VMDeath : thread=00000000, pJniEnv=41215FDC -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://issues.apache.org/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira