Name: tb29552 Date: 06/26/2004


During a control build on windows-ia64:

 [...]
gnumake[4]: Entering directory `E:/users/tbell/b58PIT/j2se/make/java/nio'
gnumake[4]: Nothing to be done for `sources'.
gnumake[4]: Leaving directory `E:/users/tbell/b58PIT/j2se/make/java/nio'
rm -f E:/users/tbell/TL/build/tmp/java/java.lang/java/.classes.list
if [ -s E:/users/tbell/TL/build/tmp/java/java.lang/java/.classes.list ] ; \
then C:/j2sdk1.4.2/bin/javac -J-Xbootclasspath/p:../../sun/javac/javac/gjc.jar
-Xbootclasspath/p:../../sun/javac/javac/collect.jar -target jsr14 -J-Xms32m
-J-Xmx128m -classpath E:/users/tbell/TL/build/classes -bootclasspath
"E:/users/tbell/TL/build/lib/jce.jar;E:/users/tbell/TL/build/lib/jsse.jar"
-sourcepath
"E:/users/tbell/TL/build/gensrc;../../../src/windows/classes;../../../src/share/classes"
-d E:/users/tbell/TL/build/classes -encoding ascii -source 1.5 -source 1.5
-target 1.5 -encoding ascii \
    ../../../src/share/classes/java/lang/Thread.java ..
 [[... long list of .java files to be compiled ...]]


Much later, it was discovered that C:/j2sdk1.4.2/bin/javac.exe has accumulated
hours of CPU time.

Entering Ctrl-Brk shows:

Full thread dump Java HotSpot(TM) 64-Bit Server VM (1.4.2-b28 mixed mode):

"Signal Dispatcher" daemon prio=10 tid=0x000006fbff282630 nid=0x900 waiting on
condition [0..0]

"Finalizer" daemon prio=9 tid=0x000006fbff27eba0 nid=0x920 in Object.wait()
[b1a1f000..b1a1fde8]
at java.lang.Object.wait(Native Method)
- waiting on <0x000006fbb4adcaf0> (a java.lang.ref.ReferenceQueue$Lock)
at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:111)
- locked <0x000006fbb4adcaf0> (a java.lang.ref.ReferenceQueue$Lock)
at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:127)
at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:159)

"Reference Handler" daemon prio=10 tid=0x000006fbff27d420 nid=0x93c in
Object.wait() [b1c1f000..b1c1fde8]
at java.lang.Object.wait(Native Method)
- waiting on <0x000006fbb4adcb98> (a java.lang.ref.Reference$Lock)
at java.lang.Object.wait(Object.java:429)
at java.lang.ref.Reference$ReferenceHandler.run(Reference.java:115)
- locked <0x000006fbb4adcb98> (a java.lang.ref.Reference$Lock)

"main" prio=5 tid=0x000006fbffbad810 nid=0x944 waiting on condition
[ffeaf000..ffeafd10]
at com.sun.tools.javac.util.ListBuffer.append(ListBuffer.java:98)
at com.sun.tools.javac.comp.Flow.visitTry(Flow.java:1009)
at com.sun.tools.javac.tree.Tree$Try.accept(Tree.java:674)
at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:34)
at com.sun.tools.javac.comp.Flow.scanStat(Flow.java:484)
at com.sun.tools.javac.comp.Flow.scanStats(Flow.java:492)
at com.sun.tools.javac.comp.Flow.visitBlock(Flow.java:732)
at com.sun.tools.javac.tree.Tree$Block.accept(Tree.java:540)
at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:34)
at com.sun.tools.javac.comp.Flow.scanStat(Flow.java:484)
at com.sun.tools.javac.comp.Flow.visitMethodDef(Flow.java:684)
at com.sun.tools.javac.tree.Tree$MethodDef.accept(Tree.java:482)
at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:34)
at com.sun.tools.javac.comp.Flow.visitClassDef(Flow.java:624)
at com.sun.tools.javac.tree.Tree$ClassDef.accept(Tree.java:438)
at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:34)
at com.sun.tools.javac.comp.Flow.analyzeTree(Flow.java:1229)
at com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:418)
at com.sun.tools.javac.main.Main.compile(Main.java:592)
at com.sun.tools.javac.main.Main.compile(Main.java:544)
at com.sun.tools.javac.Main.compile(Main.java:58)
at com.sun.tools.javac.Main.main(Main.java:48)

"VM Thread" prio=5 tid=0x000006fbff27c300 nid=0x910 runnable

"VM Periodic Task Thread" prio=10 tid=0x000006fbff2882e0 nid=0x8a0 waiting on
condition
"Suspend Checker Thread" prio=10 tid=0x000006fbff281be0 nid=0x964 runnable



Several Ctrl-Brks in a row show the same picture. Note that only
"VM Thread" and "Suspend Checker Thread" are runnable. Everything
else is waiting.


The full build log is attached as Administrator.Build.2004_06_24.16-15-49.log

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