[ CC'd to freebsd-java, please followup there too ] Dear Andrew,
This question is better asked on -java, so I forwarded you question. There are many hardcore JVM hackers on that list. > > I'm using 4.x-stable, linux-base-6.x, and am encountering a lot of > turbulence with both Sun's jdk1.3.x HotSpot JVM and IBM's > linux jdk1.3.x JVM. > Well, considering that technically we don't actually have any Java VM post 1.1.8... :-) > > I have a buggy 3rdparty java app that occasionally causes a > null pointer > exception to be thrown. While not fatal for the app (the exception is > correctly caught), it's most often fatal for the JVM. The SUN > jvm SEGV's ( > doesn't correctly catch the SIGNAL ), while the IBM jvm seems to get > locked in kernel mode - only responding to SIGKILL and > chewing up tons of > 'system' cpu time. The common denominator here is that both > JITs utilize > linux threads. When I use a non-threaded JIT, the problem > doesn't occur. > > The problem is readily reproducible, but I'm not sure how to debug it. > I've played with truss and ktrace, but I think it's time to > begin thinking > about using the kernel debugger. > Could you perhaps provide a simple code sample that allows us to reproduce the problem? Kees Jan ================================================ You are only young once, but you can stay immature all your life. To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-hackers" in the body of the message