Hmm.  I've been happily using log4j 1.1.3 on Solaris 8, Sun JVM 
1.3.1-b24 (-server), and everything's been hunky-dory.  However, now I'm 
more out of raw development and focusing on performance, so I went to 
modify my log4j configuration.  I had been using a PatternLayout of:

    log4j.appender.file.layout.ConversionPattern=%d{ISO8601} [%t] %p 
(%C{1}.%M) - %m%n

which contains several items known to be slow, so I modified it to:

    log4j.appender.file.layout.ConversionPattern=%d{ISO8601} [%t] %p - %m%n

and after several events through my application, JVM crashes, with 
something like:

    Unexpected Signal : 11 occurred at PC=0xfe0b5cf0
    Function name=JVM_CurrentTimeMillis
    Library=/usr/j2se/jre/lib/sparc/server/libjvm.so

I strongly suspect log4j, since when I switch back to my original 
ConversionPattern, the crash doesn't happen.  I'll do some more testing 
with it, but does this ring any bells with anyone?

Thanks,

dwh


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