Bug #3693
openMultiInstanceComposite actor deadlocks sometimes
0%
Description
When this actor is used in a workflow, Kepler sometimes deadlocks. To see this, repeatedley run a workflow with this actor. It freezes primarily during preinitialize, but sometimes during wrapup.
Files
Updated by Christopher Brooks over 15 years ago
I can't reproduce this.
In Kepler-1.0.0 on a multicore Windows 2003 Server with Java 1.6.0_07, I did:
1) Started Kepler by clicking in the icon
2) Help -> About -> Documentation
3) Clicked on "background information about Ptolemy" -> Quick Tour -> "complete list of demos" -> SDF -> DFTSubset
4) I ran the demo several times and did not hang for me.
There could easily be a bug here, but I'm not sure what model
was being run and on what platform and with what version of the JVM.
To check the JVM version, start up Kepler and click on Tools -> Check System
Settings.
Updated by jianwu jianwu over 15 years ago
The deadlocks appear to occur when using PN (probably due to multi-threading). I'll upload a simple workflow. Note that you may need to try many times to see the deadlock.
Updated by Daniel Crawl over 15 years ago
I was able to reproduce the deadlock in Jianwu's workflow on:
Windows XP, java 1.6.0_11, Kepler 1.0.0
Mac, java 1.5.0_16, both Kepler 1.0.0 and head