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From Markus Schönhaber <>
Subject Re: tcnative-1.dll crashes jvm: how do i provide
Date Tue, 15 May 2007 16:10:37 GMT
Stu Thompson wrote:

> My webapp can somewhat regularly crash the JVM on multiple machines.
> Most of the hotspot dump files are remarkably consistence with where the
> error is occurring...then again, I do know what is important and what is
> not.  Running tomcat without tcnative-1.dll resolves the problem but I'd
> like to help find the solution.  While researching this issue, it has
> become clear that I should submit debugging info that would be generated
> by having a specially compiled tcnative-1.dll what would provide a stack
> trace.  C programming (and compiling) is not exactly my thing, so...
> Where can I get myself a tcnative-1.dll binary compiled with debugging
> symbol?  

I don't know if pre-built binaries with debugging symbols are available
somewhere. But you can always roll your own tcnative-1.dll. The sources
are available from

>  - OS: Windows XP and Server 2003
> - Java: 1.5.0_08-b03, 1.5.0_07-b03, ...
> - Tomcat: 6.0.10

But before I'd start with debugging, I'd install the latest update for
the JVM and the latest version of the native DLL an check whether the
problem still shows.


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