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Bug 328632

Summary:

[Decorators] Thread blocks at start while adding decorations

Product:

[Eclipse Project] Platform

Reporter:

Marc-André Laperle <malaperle>

Component:

Assignee:

Platform UI Triaged <platform-ui-triaged>

Status:

CLOSED INVALID

QA Contact:

Oleg Besedin <ob1.eclipse>

Severity:

major

Priority:

CC:

ob1.eclipse, pwebster

Version:

3.6.1

Target Milestone:

---

Hardware:

OS:

Windows 7

Whiteboard:

Attachments:

Description	Flags
stack	none

Description Marc-André Laperle

2010-10-25 12:29:27 EDT

Build Identifier: 20100917-0705

Sometimes, when I start Eclipse, a thread will block and use all the CPU until I restart Eclipse. When this happens, I don't see decorations in the Project Explorer. I have the Perforce plug-in and CDT installed but I don't see them in the stack dump.

Reproducible: Sometimes

Steps to Reproduce:
1. Start Eclipse with resources that need decorations
2. Sometimes, thread blocks

Comment 1 Marc-André Laperle

2010-10-25 12:30:18 EDT

Created attachment 181659 [details]
stack

Comment 2 Oleg Besedin

2010-10-25 14:04:58 EDT

(In reply to comment #0)
> Build Identifier: 20100917-0705
> Sometimes, when I start Eclipse, a thread will block and use all the CPU until
> I restart Eclipse.

I don't see a deadlock in the attached stack. In the attachment both "main" thread and "worker-0" threads are waiting on the "worker-11" thread which is running (see references to 0x19ef3370).

So, from this stack itself it does not look like a deadlock, but probably a case of too many decorators or decorator processing taking too long. Or a resource tree for the workspace being broken and containing a cycle.

> ... I have the Perforce plug-in and CDT installed ... 

To help find the problem:

- Do you see a deadlock in other stacks? If so, can you attach one?
- Do you see this problem using a minimal workspace, something akin to "Hello World"?
- Does the problem happen with Eclipse SDK itself? if not, how about Eclipse SDK + Perforce and Eclipse SDK + CDT?

I know this is a lot of questions, but the attached stack really does not have enough information to narrow down the issue.

Comment 3 Marc-André Laperle

2010-10-25 23:42:46 EDT

(In reply to comment #2)
> (In reply to comment #0)
> > Build Identifier: 20100917-0705
> > Sometimes, when I start Eclipse, a thread will block and use all the CPU until
> > I restart Eclipse.
> 
> I don't see a deadlock in the attached stack. In the attachment both "main"
> thread and "worker-0" threads are waiting on the "worker-11" thread which is
> running (see references to 0x19ef3370).

Thanks for explaining. I understand stacks better now.
 
> > ... I have the Perforce plug-in and CDT installed ... 
> I know this is a lot of questions, but the attached stack really does not have
> enough information to narrow down the issue.

I will do more testing, thanks for the suggestions. I am under the impression that either the Perforce plug-in and/or the Perforce server might be the problem. I will change this to invalid if I can confirm that.

Comment 4 Marc-André Laperle

2010-11-11 22:52:47 EST

I haven't been able to reproduce the problem. I will assume it's decorator processing taking too long because of a server slow down.