Re: Tomcat 4.0.4 under Windows NT crashes: "memory cannot be read"

[Jocelyn Paine <po...@ifs.org.uk>]

Randall,

I installed the 1.3.1 JSDK in place of 1.2, and this error _seems_ to have
gone away. Since it wasn't 100% repeatable, I can't be sure, and will have
to test it on my colleague's machine (which always tended to manifest the
fault more often), but I may be lucky.

You suggested I install JSDK 1.3.1 or 1.4.0: I wasn't able to install the
latter, because InstallShield crashed "Interface not found" when it
started the install proper, after unpacking its files. Surely Sun can't
have left such an obvious bug, but perhaps they don't support NT 4 any
more?

In answer to your question, I'd been running Tomcat stand-alone, not glued
to Apache.

Finally, with reference to a comment in your earlier mail, is Tomcat
indeed 100% Java? I.e. it doesn't include any native code? If so, I wonder
what it was provoking to crash the 1.2 JVM (assuming that is indeed what
happened) - nothing I've run has ever managed that before, not even the
same application under a different server. (Since the fault appeared on
two different machines, with different hardware configurations and Windows
versions, I'd been assuming it was unlikely to be hardware or drivers.)

Anyway, thanks for the advice. My colleague's machine is in France until
next week, but when I can get at it, I'll post again if upgrading his JVM
doesn't fix the problem.

Jocelyn Paine
http://www.ifs.org.uk/~popx/
+44 (0)7768 534 091 


On Sun, 1 Sep 2002, Randall R Schulz wrote:

> Jocelyn,
> 
> I didn't read enough or carefully enough.
> 
> 
> You really ought to get a more up-to-date version of the JRE or SDK. I 
> recommend 1.4.0_01 or 1.3.1, but using 1.2 at this point is not a good idea.
> 
> 
> By the way, how do you (or your colleague) you get Tomcat to run as a 
> service? Via Apache?
> 
> Are you certain that it's the Tomcat process that's crashing? Your 
> diagnostic didn't include the application name that is (I believe) in the 
> window title of the alert whose contents you reported. Is it "java.exe" or 
> something else?
> 
> 
> Randall Schulz
> Mountain View, CA USA
> 
> 
> At 23:59 2002-08-31, you wrote:
> >....
> >
> >My system: Tomcat 4.0.4 is running stand-alone on Windows NT 4 (service
> >pack 3); starting it by invoking Tomcat's startup.bat from a DOS window.
> >My Java is Sun's "Classic VM (build JDK-1.2-V, native threads)". Machine
> >is a 64 MB Dell Latitude.
> >
> >My colleague's system is a new Sony Vaio running Windows XP, same version
> >of Tomcat, also a Sun JVM but probably a slightly newer one. Tomcat
> >running as a service...
> >
> >Jocelyn Paine
> 
> 
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