Java Segfaults on Opteron w/ Suse 9.1

Hello;
    We're having problems with java on our dual opteron 242 box. The box 
has 2gb Ram, and a Tyan 2885 mb. We have an application that runs in 
jboss 3.2.3. We installed a clean copy of 64 bit Suse 9.1 and setup our 
application. The application started dying in various ways which we 
traced back to the following errors appearing in /var/log/messages:

May 17 13:23:27 dev5 kernel: java[5474]: segfault at 0000000000000004 
rip 0000000057ea7300 rsp 000000008127f938 error 4
May 17 13:23:27 dev5 kernel: java[5474]: segfault at 0000000000000004 
rip 0000000057f95f6a rsp 0000000081280040 error 4
May 17 13:23:29 dev5 kernel: java[5474]: segfault at 0000000000000004 
rip 000000005800363e rsp 000000008127f558 error 4
May 17 13:23:29 dev5 kernel: java[5474]: segfault at 0000000000000004 
rip 000000005800d8ca rsp 000000008127ed60 error 4

We  even tried running jboss without our application deployed and got 
the same errors out of the jboss jmx-console. We have been running 64 
bit Suse 9.0 before this; we had tried some of the preproduction 2.6 
kernels for that and got similar errors. The standard 2.4 kernel(201) 
works without those errors, although the last 2 builds (209 and 215) 
have caused some less severe java out of memory errors.  We've tried 3 
different JVM's and got the same errors, the JVM's are the Blackdown.org 
32 and 64 bit rc1 versions and the Sun 1.4.2_3. All the version info and 
processor info are below. Any idea where I can go for some help with this?

Thanks
Al


MACHINE INFO:

 
Linux dev5 2.6.4-54.5-smp #1 SMP Fri May 7 16:47:27 UTC 2004 x86_64 
x86_64 x86_64 GNU/Linux

dev5:~ # cat /proc/cpuinfo
processor       : 0
vendor_id       : AuthenticAMD
cpu family      : 15
model           : 5
model name      : AMD Opteron(tm) Processor 242
stepping        : 1
cpu MHz         : 1593.735
cache size      : 1024 KB
fpu             : yes
fpu_exception   : yes
cpuid level     : 1
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge 
mca cmov
pat pse36 clflush mmx fxsr sse sse2 syscall nx mmxext lm 3dnowext 3dnow
bogomips        : 3129.34
TLB size        : 1088 4K pages
clflush size    : 64
address sizes   : 40 bits physical, 48 bits virtual
power management: ts ttp
 
processor       : 1
vendor_id       : AuthenticAMD
cpu family      : 15
model           : 5
model name      : AMD Opteron(tm) Processor 242
stepping        : 1
cpu MHz         : 1593.735
cache size      : 1024 KB
fpu             : yes
fpu_exception   : yes
cpuid level     : 1
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge 
mca cmov
pat pse36 clflush mmx fxsr sse sse2 syscall nx mmxext lm 3dnowext 3dnow
bogomips        : 3178.49
TLB size        : 1088 4K pages
clflush size    : 64
address sizes   : 40 bits physical, 48 bits virtual
power management: ts ttp
 
java version "1.4.2-rc1"
Java(TM) 2 Runtime Environment, Standard Edition (build Blackdown-1.4.2-rc1)
Java HotSpot(TM) Client VM (build Blackdown-1.4.2-rc1, mixed mode)

dev5:~ # java -version
java version "1.4.2_03"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2_03-b02)
Java HotSpot(TM) Client VM (build 1.4.2_03-b02, mixed mode)

dev5:/usr/java/j2sdk1.4.2_amd64/bin # ./java -version
java version "1.4.2-rc1"
Java(TM) 2 Runtime Environment, Standard Edition (build Blackdown-1.4.2-rc1)
Java HotSpot(TM) 64-Bit Server VM (build Blackdown-1.4.2-rc1, mixed mode)
d

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