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Bug 34611 - deadlock on starting debuging
Summary: deadlock on starting debuging
Status: VERIFIED FIXED
Alias: None
Product: debugger
Classification: Unclassified
Component: Java (show other bugs)
Version: 3.x
Hardware: PC Linux
: P1 blocker (vote)
Assignee: issues@debugger
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2003-06-26 12:23 UTC by pzajac
Modified: 2003-12-11 14:20 UTC (History)
0 users

See Also:
Issue Type: DEFECT
Exception Reporter:

Attachments
threads dump (30.57 KB, text/plain)
2003-06-26 12:24 UTC, pzajac 		Details
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Description pzajac 2003-06-26 12:23:52 UTC 
[200306260100] [jdk 1.4.1_03]
Found one Java-level deadlock:
=============================
"Debugger operator thread":
  waiting to lock monitor 0x8087de4 (object
0x449c98c0, a java.awt.Component$AWTTreeLock),
  which is held by "AWT-EventQueue-0"
"AWT-EventQueue-0":
  waiting to lock monitor 0x8087a2c (object
0x46367360, a
org.netbeans.modules.debugger.jpda.JPDADebugger),
  which is held by "Debugger operator thread"
Comment 1 pzajac 2003-06-26 12:24:40 UTC 
Created attachment 10805 [details]
threads dump
Comment 2 pzajac 2003-06-26 13:05:43 UTC 
I can repreduce it in my code:
I placed breakpoint to my unit test   (TestVersin.java:88). 
I started debugger. 
The debugger stopped on my breakpoint. After step into the deadlock
occured. I can reproduce it only on one line in my code:-(

priority increased p2->p1. 

please evaluate.
Comment 3 Jan Jancura 2003-06-26 14:16:14 UTC 
Will be fixed to next release.
What do you mean by evaluate?!?
Comment 4 Milan Kubec 2003-06-27 08:31:14 UTC 
Possibly look at the stack trace and decide if the problem is in our
debugger and consider if it's likely to happen. And if so, plan fixing
the issue, since reproducible deadlock during starting debugger seems
as very important issue.

Petr, please attach your test code. Thanks.
Comment 5 pzajac 2003-06-30 08:55:24 UTC 
I'm sorry, I cannot attach my sources.  My code uses library with NON
SPL licence. I think that this bug is next Q-build showstopper.
Comment 6 Jan Jancura 2003-07-02 14:56:14 UTC 
Looks like this bug is already fixed in release35 branch, but fix was
not propagated to trunk.
Comment 7 Jan Jancura 2003-07-02 15:26:50 UTC 
Fixed in main trunk.
Comment 8 Jan Chalupa 2003-07-03 09:06:50 UTC 
Diff???
Comment 9 pzajac 2003-07-03 14:06:43 UTC 
cannot reproduce on build [200307030100] ->verified