Date: Fri, 11 Apr 2003 13:05:28 +0100 From: Ernst de Haan <znerd@freebsd.org> To: Alexey Zelkin <phantom@FreeBSD.org.ua> Cc: Chris Gilbride <chris.gilbride@nl.wanadoo.com> Subject: Re: SIGBUS on FreeBSD 4.7-S / Native JDK 1.3 Message-ID: <200304111405.28885.znerd@FreeBSD.org> In-Reply-To: <20030411142512.A23773@phantom.cris.net> References: <200304111249.56506.znerd@FreeBSD.org> <20030411142512.A23773@phantom.cris.net>
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> Well. I am not jdk1.3 expert, but quick look on dump shows that you're > using 'green threads'. So, problem can be related to JIT which you're > using or maybe application itself. No JIT is used. And the application self (Tomcat) cannot be the problem, can it? It's running within the JVM... > Actually, from my expirience of porting jdk14 -- SIGBUS is usually notice > of StackOverflow, but I don't know details of stack implementation in > 'green threads'. You mean a stack overflow in the C code? Ernst > On Fri, Apr 11, 2003 at 11:49:56AM +0100, Ernst de Haan wrote: > > Alexey, Greg, > > > > We're in the middle of deploying quite a large frontend application on > > Tomcat 4. We'd prefer to deploy on J2SE 1.3/FreeBSD, but we're getting > > SIGBUS errors. Currently we're using these versions: > > > > * Tomcat 4.1.24 > > * JDK 1.3.1p7 > > * FreeBSD 4.7-STABLE (Compiled @ 2002.11.18/14:56:20 CET) > > * x86 SMP system (Dual P4, I think) > > > > I see a number of alternative solutions: > > > > * Upgrade to FreeBSD 4.8 (I remember there were some Java-related > > improvements after Nov 2002, right?) > > No reason to do it, unless you propose to use 'native threads' or jdk14. > > > * Upgrade to JDK 1.3.1p8 > > That's first point which you need to try. > > > * Set MAXUSERS to 0 in the kernel config file and recompile and install > > the kernel (I remember this solved some native JDK problem in the past) > > You're not using native threads, so native threads methods are > unapplicable. > > > * Use a different J2SE VM (I don't really want to do this) > > Why not ? > > > * Examine the core file to see what exactly went wrong > > > > Any suggested approach? > > Try updating to -p8 and see if anything changes.
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