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[Bug java/37051] New: Random failures running ECJ 3.4 (threading problem?)
- From: "chewi at aura-online dot co dot uk" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 7 Aug 2008 23:30:52 -0000
- Subject: [Bug java/37051] New: Random failures running ECJ 3.4 (threading problem?)
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
I have been encountering random failures when running ECJ 3.4. ECJ 3.3 works
fine and I did also encounter random failures with Sun's VM so I initially
filed a bug at eclipse.org. However, further tests have indicated that there
are two different issues here, one affecting GCJ and one affecting Sun, hence I
am filing this bug report now.
The failures only occur when ECJ is run with multiple threads. They do not
occur when -Djdt.compiler.useSingleThread=true is specified and they also do
not occur on single core machines. I have only seen the failures on the x86_64
platform but it could possibly affect others too. The frequency of the failures
varies but they usually occur around once every 10 tries. The error messages
also vary but they usually look like this.
java.lang.NullPointerException
at org.eclipse.jdt.internal.compiler.ReadManager.run(ReadManager.java:160)
at java.lang.Thread.run(libgcj.so.90)
java.lang.NullPointerException
at
org.eclipse.jdt.internal.compiler.util.Util.getFileCharContent(Util.java:226)
at
org.eclipse.jdt.internal.compiler.batch.CompilationUnit.getContents(CompilationUnit.java:71)
at org.eclipse.jdt.internal.compiler.ReadManager.run(ReadManager.java:160)
at java.lang.Thread.run(libgcj.so.90)
I have reproduced this on my usual Gentoo Linux system but also managed to
reproduce it on a fresh installation of Ubuntu Intrepid Ibex Alpha 3 under KVM.
So far, I have only tried GCC 4.3.1. For more details, see the original bug
report at...
https://bugs.eclipse.org/bugs/show_bug.cgi?id=241225
--
Summary: Random failures running ECJ 3.4 (threading problem?)
Product: gcc
Version: 4.3.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: java
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: chewi at aura-online dot co dot uk
GCC build triplet: x86_64-pc-linux-gnu
GCC host triplet: x86_64-pc-linux-gnu
GCC target triplet: x86_64-pc-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37051