[jboss-jira] [JBoss JIRA] Resolved: (JBAS-4514) CLONE -Deadlock when logging trace

CLONE -Deadlock when logging trace ---------------------------------- Key: JBAS-4514 URL: https://jira.jboss.org/jira/browse/JBAS-4514 Project: JBoss Application Server Issue Type: Bug Security Level: Public(Everyone can see) Reporter: chris effenberger Assignee: David Lloyd Fix For: 6.0.0.M3 SourceForge Submitter: genman . This was caused when trace was enabled. I imagine it was caused by the classloader trying to load a class while it was being rendered (?) to disk. Probably not a big issue, unless trace-logging is enabled. Java stack information for the threads listed above: =================================================== "SMPP-TIMER-0": at com.logica.smpp.util.ByteBuffer.getHexDump(ByteBuffer.java:379) at com.logica.smpp.util.ByteBuffer.toString(ByteBuffer.java:387) at org.apache.log4j.or.DefaultRenderer.doRender(DefaultRenderer.java:26) at org.apache.log4j.or.RendererMap.findAndRender(RendererMap.java:70) at org.apache.log4j.spi.LoggingEvent.getRenderedMessage(LoggingEvent.java:288) at org.apache.log4j.helpers.PatternParser$BasicPatternConverter.convert(PatternParser.java:395) at org.apache.log4j.helpers.PatternConverter.format(PatternConverter.java:56) at org.apache.log4j.PatternLayout.format(PatternLayout.java:495) at org.apache.log4j.WriterAppender.subAppend(WriterAppender.java:292) at org.apache.log4j.WriterAppender.append(WriterAppender.java:150) at org.apache.log4j.AppenderSkeleton.doAppend(AppenderSkeleton.java:221) - locked <0x473874c8> (a org.apache.log4j.ConsoleAppender) at org.apache.log4j.helpers.AppenderAttachableImpl.appendLoopOnAppenders(AppenderAttachableImpl.java:57) at org.apache.log4j.Category.callAppenders(Category.java:187) - locked <0x46829180> (a org.apache.log4j.spi.RootCategory) at org.apache.log4j.Category.forcedLog(Category.java:372) at org.apache.log4j.Category.debug(Category.java:241) at com.logica.smpp.debug.Log4JDebug.write(Log4JDebug.java:79) at com.logica.smpp.TCPIPConnection.send(TCPIPConnection.java:301) at com.logica.smpp.Transmitter.send(Transmitter.java:81) at com.logica.smpp.Session.send(Session.java:983) at com.logica.smpp.Session.bind(Session.java:452) at ... "SMSC-Accept-16910": at org.apache.log4j.Category.callAppenders(Category.java:185) - waiting to lock <0x46829180> (a org.apache.log4j.spi.RootCategory) at org.apache.log4j.Category.forcedLog(Category.java:372) at org.apache.log4j.Category.log(Category.java:864) at org.jboss.logging.Log4jLoggerPlugin.trace(Log4jLoggerPlugin.java:96) at org.jboss.logging.Logger.trace(Logger.java:113) at org.jboss.mx.loading.UnifiedClassLoader3.attempt(UnifiedClassLoader3.java:242) at org.jboss.mx.loading.UnifiedClassLoader3.loadClass(UnifiedClassLoader3.java:126) - locked <0x472e2f38> (a org.jboss.mx.loading.UnifiedClassLoader3) at java.lang.ClassLoader.loadClass(ClassLoader.java:255) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:315) - locked <0x472e2f38> (a org.jboss.mx.loading.UnifiedClassLoader3) at com.proteusmobile.smsgw.server.ServerService.listen(ServerService.java:187) at com.proteusmobile.smsgw.server.ServerService.access$3(ServerService.java:46) at com.proteusmobile.smsgw.server.ServerService$Listener.run0(ServerService.java:163) at com.proteusmobile.smsgw.server.ServerService$Listener.run(ServerService.java:154) at java.lang.Thread.run(Thread.java:536) Found 1 deadlock.