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Bug
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Resolution: Duplicate
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P4
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None
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1.2.0
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generic
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solaris_2.6
Running hotjava (on exactvm) occassionally hangs due to a deadlock.
The following output is from exactvm's deadlock detector,
identifying two threads, eaching hold a lock the other wants,
and requesting the other lock.
We don't have a Java Software JDK example of this failure, however the
java2d classes and native methods are identical (to fcs-K). The timing
may be different.
hotjava:
HOTJAVA_HOME=/net/galileo.east/files/agesen2/Hotjava/hotjava1.1.5-fcs-c
JDK_HOME= ?? (your favorite)
FOUND A JAVA LEVEL DEADLOCK:
---------------------------
t@8 waiting to lock object@0xeb8f1238:"java/lang/Class"
which is locked by t@23
t@23 waiting to lock object@0x49574:"sun/awt/motif/MToolkit"
which is locked by t@8
JAVA STACK INFORMATION FOR THREADS LISTED ABOVE:
-----------------------------------------------
Java Stack for t@8 (EE = 0x2c1d98) "AWT-EventQueue-0" :
==========
[1] sun.awt.font.NativeFontWrapper.drawStringIntDiscrete(Native Method)
[2] sun.java2d.loops.drawStringBGR.DrawString(TextRendering.java:1170)
[3] sun.java2d.loops.RasterOutputManager.drawString(RasterOutputManager.java:2671)
[4] sun.java2d.pipe.ValidatePipe.drawString(ValidatePipe.java:123)
[5] sun.java2d.SunGraphics2D.drawString(SunGraphics2D.java:2229)
[6] Plasma.update(Plasma.java)
[7] sun.awt.motif.MComponentPeer.handleEvent(MComponentPeer.java:261)
[8] java.awt.Component.dispatchEventImpl(Component.java:2297)
[9] java.awt.Container.dispatchEventImpl(Container.java:1019)
[10] java.awt.Component.dispatchEvent(Component.java:2293)
[11] java.awt.EventQueue.dispatchEvent(EventQueue.java:253)
[12] java.awt.EventDispatchThread.run(EventDispatchThread.java:65)
Java Stack for t@23 (EE = 0x78a148) "Screen Updater" :
==========
[1] sun.awt.font.NativeFontWrapper.getAdvance(Native Method)
[2] sun.awt.font.FontDesignMetrics.charWidth(FontDesignMetrics.java:119)
[3] sun.awt.font.FontDesignMetrics.stringWidth(FontDesignMetrics.java:139)
[4] java.awt.FontMetrics.charsWidth(FontMetrics.java:290)
[5] sunw.hotjava.doc.TextItem.fastFormatText(TextItem.java:410)
[6] sunw.hotjava.doc.TextItem.formatText(TextItem.java:363)
[7] sunw.hotjava.doc.TextItem.format(TextItem.java:226)
[8] sunw.hotjava.doc.Formatter.formatLine(Formatter.java:1058)
[9] sunw.hotjava.doc.DocumentFormatter.formatDocument(DocumentFormatter.java:1475)
[10] sunw.hotjava.doc.DocumentFormatter.updateClient(DocumentFormatter.java:1753)
[11] sun.awt.ScreenUpdater.run(ScreenUpdater.java:98)
-----------------------------------------------
Found 1 deadlock
The following output is from exactvm's deadlock detector,
identifying two threads, eaching hold a lock the other wants,
and requesting the other lock.
We don't have a Java Software JDK example of this failure, however the
java2d classes and native methods are identical (to fcs-K). The timing
may be different.
hotjava:
HOTJAVA_HOME=/net/galileo.east/files/agesen2/Hotjava/hotjava1.1.5-fcs-c
JDK_HOME= ?? (your favorite)
FOUND A JAVA LEVEL DEADLOCK:
---------------------------
t@8 waiting to lock object@0xeb8f1238:"java/lang/Class"
which is locked by t@23
t@23 waiting to lock object@0x49574:"sun/awt/motif/MToolkit"
which is locked by t@8
JAVA STACK INFORMATION FOR THREADS LISTED ABOVE:
-----------------------------------------------
Java Stack for t@8 (EE = 0x2c1d98) "AWT-EventQueue-0" :
==========
[1] sun.awt.font.NativeFontWrapper.drawStringIntDiscrete(Native Method)
[2] sun.java2d.loops.drawStringBGR.DrawString(TextRendering.java:1170)
[3] sun.java2d.loops.RasterOutputManager.drawString(RasterOutputManager.java:2671)
[4] sun.java2d.pipe.ValidatePipe.drawString(ValidatePipe.java:123)
[5] sun.java2d.SunGraphics2D.drawString(SunGraphics2D.java:2229)
[6] Plasma.update(Plasma.java)
[7] sun.awt.motif.MComponentPeer.handleEvent(MComponentPeer.java:261)
[8] java.awt.Component.dispatchEventImpl(Component.java:2297)
[9] java.awt.Container.dispatchEventImpl(Container.java:1019)
[10] java.awt.Component.dispatchEvent(Component.java:2293)
[11] java.awt.EventQueue.dispatchEvent(EventQueue.java:253)
[12] java.awt.EventDispatchThread.run(EventDispatchThread.java:65)
Java Stack for t@23 (EE = 0x78a148) "Screen Updater" :
==========
[1] sun.awt.font.NativeFontWrapper.getAdvance(Native Method)
[2] sun.awt.font.FontDesignMetrics.charWidth(FontDesignMetrics.java:119)
[3] sun.awt.font.FontDesignMetrics.stringWidth(FontDesignMetrics.java:139)
[4] java.awt.FontMetrics.charsWidth(FontMetrics.java:290)
[5] sunw.hotjava.doc.TextItem.fastFormatText(TextItem.java:410)
[6] sunw.hotjava.doc.TextItem.formatText(TextItem.java:363)
[7] sunw.hotjava.doc.TextItem.format(TextItem.java:226)
[8] sunw.hotjava.doc.Formatter.formatLine(Formatter.java:1058)
[9] sunw.hotjava.doc.DocumentFormatter.formatDocument(DocumentFormatter.java:1475)
[10] sunw.hotjava.doc.DocumentFormatter.updateClient(DocumentFormatter.java:1753)
[11] sun.awt.ScreenUpdater.run(ScreenUpdater.java:98)
-----------------------------------------------
Found 1 deadlock
- duplicates
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JDK-4175583 JavaTest GUI not consistently unusable in JDK-1.2fcs-K
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- Closed
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