Are you running on (Redhat) linux by any chance?
If you do then you have to be carefull that your linux kernel, libc and JVM version are compatible (pre or post redhat 9)
This is because the new thread library, Native POSIX Thread Library (NPTL).
http://www.redhat.com/docs/manuals/enterprise/RHEL-3-Manual/release-notes/ws-amd64/
http://developer.java.sun.com/developer/technicalArticles/JavaTechandLinux/RedHat/
Another option is to try green threads "-green" option and/or disable hotspot.
If you have a core dump you could analyse it using gdb.
-- Dirk
jean-frederic clere wrote:
Clere, Jean-Frederic wrote:
Jeff Rogers wrote:
Hello,
I hate to post this to the dev list, but we need consulting help. I have no idea where to look for reputable Tomcat consulting.
We are at our wits end and ready to make the jump to commercial software due to a "signal 11" crashing problem with our Tomcat servers.
"signal 11" are normaly problems in the JVM's. Which java version are you using?
BTW: I have tried to "overload" TC and I have got: ++++ An unexpected exception has been detected in native code outside the VM. Unexpected Signal : 11 occurred at PC=0x40098aa6 Function name=malloc Library=/lib/libc.so.6
Current Java thread:
at java.net.SocketInputStream.socketRead(Native Method)
at java.net.SocketInputStream.read(SocketInputStream.java:85)
at org.apache.coyote.http11.InternalInputBuffer.fill(InternalInputBuffer.java:767)
at org.apache.coyote.http11.InternalInputBuffer.parseRequestLine(InternalInputBuffer.java:428)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:569)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:392)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java
+++
That is with JVM 1.3.1_03... and 4.1.24.
We have found about a zillion similar issues on the lists, but no solutions.
We are in the Northeastern part of the US. Please reply offline to keep this off the dev list.
Thanks
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