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| Summary: | deadlock on startup of IDE, due to openfile server | ||
|---|---|---|---|
| Product: | utilities | Reporter: | Roger Blumer <rblumer> |
| Component: | Code | Assignee: | issues@utilities <issues> |
| Status: | CLOSED FIXED | ||
| Severity: | blocker | CC: | non_migrated_user, pnejedly |
| Priority: | P2 | ||
| Version: | -FFJ- | ||
| Hardware: | PC | ||
| OS: | Windows 3.1/NT | ||
| Issue Type: | DEFECT | Exception Reporter: | |
| Attachments: | Full thread dump | ||
Created attachment 5349 [details]
Full thread dump
After discussion with Petr Nejedly (thanks) we localized this deadlock: * "OpenFile Server" 1) openfile.Settings.setActualPort0(...) -- synchronized (this) 2) SharedClassObject.getProperty(...) -- synchronized (getLock()) * "main" 1) SystemOption.readExternal(...) -- synchronized (getLock()) 2) openfile.Settings.setPort(...) -- synchronized (this) --- Petr proposed to cover Settings.readExternal body by 'synchronized (this)' block what should sort locks. --- I would like to mark it as "ORION_WAIVER" and do not fix it in Orion branch because: - it is hard to reproduce it, it is race-condition -- it depends on deserialization time. - it occurs occasionally and I am not sure if new synchronized section will not bring any problems. It could be too risky to fix it without long testing. --- Proposed fix integrated in main trunk. Requesting a waiver for FFJ 4.0 (Orion) - FFJ40_WAV. The bug is not easily reproducible and the fix is potentially risky. Waiver approved. Already fixed in main trunk. Verified in dev 200303030100. Resolved for 3.4.x or earlier, no new info since then -> closing. |
I've hit this deadlock twice now, while starting up the IDE. It may be due to having a node (EJBmodule? or its directory) selected in the Explorer on shutdown, and that file has been deleted before the startup. Occurred on FFJ build 020403, on a 2-cpu 800Mhz PC. It seems to have something to do with the openfile server. Partial dump: "OpenFile Server" prio=5 tid=0xedcbbe0 nid=0x190 runnable [0xefbf000..0xe fbfdc8] at org.openide.util.SharedClassObject.getProperty(SharedClassObject.java:285) at org.openide.options.SystemOption.firePropertyChange(SystemOption.java:80) at org.netbeans.modules.openfile.Settings.setActualPort0(Settings.java:223) at org.netbeans.modules.openfile.Server.initSocket(Server.java:108) at org.netbeans.modules.openfile.Server.run(Server.java:118) at java.lang.Thread.run(Thread.java:484) ......... "main" prio=5 tid=0x990f20 nid=0x1ec runnable [0xb5df000..0xb5dfdc8] at org.netbeans.modules.openfile.Settings.setPort(Settings.java:176) at java.lang.reflect.Method.invoke(Native Method) at org.openide.options.SystemOption.readExternal(SystemOption.java:264) at org.netbeans.modules.openfile.Settings.readExternal(Settings.java:146) .....