Agent of 2.3.0 crashes

[j_ri]

Hi,

this morning I upgraded from JOPR 2.2.1 to 2.3.0 (actually I didn't update, I did a new installation).

unfortunately my agent is not running stable. Between 1 to 3 minutes after starting the agent (actually the jvm) crashes:



#
# An unexpected error has been detected by HotSpot Virtual Machine:
#
# SIGSEGV (0xb) at pc=0xe3ad8c37, pid=9418, tid=3823160208
#
# Java VM: Java HotSpot(TM) Server VM (1.5.0_11-b03 mixed mode)
# Problematic frame:
# C [libsigar-x86-linux.so+0x9c37] Java_org_hyperic_sigar_Cpu_gather+0x6b
#

--------------- T H R E A D ---------------

Current thread (0xe3197be0): JavaThread "ResourceContainer.invoker.daemon-1" daemon [_thread_in_native, id=9496]

siginfo:si_signo=11, si_errno=0, si_code=1, si_addr=0x30203048

Registers:
EAX=0x00000000, EBX=0xe3afd10c, ECX=0xe3e0b11c, EDX=0x00000000
ESP=0xe3e0b104, EBP=0xe3e0b100, ESI=0xe3e0b1a4, EDI=0x30203020

........


--------------- S Y S T E M ---------------

OS:openSUSE 10.3 (X86-64)
VERSION = 10.3

uname:Linux 2.6.22.18-0.2-default #1 SMP 2008-06-09 13:53:20 +0200 x86_64
libc:glibc 2.6.1 NPTL 2.6.1
rlimit: STACK 8192k, CORE 0k, NPROC 16384, NOFILE 8192, AS 2884240k
load average:0.60 0.55 0.54

CPU:total 2 (cores per cpu 1, threads per core 1) family 15 model 6 stepping 8, cmov, cx8, fxsr, mmx, sse, sse2, sse3

Memory: 4k page, physical 2063036k(15596k free), swap 1542200k(1542200k free)

vm_info: Java HotSpot(TM) Server VM (1.5.0_11-b03) for linux-x86, built on Dec 15 2006 01:12:32 by java_re with gcc 3.2.1-7a (J2SE release)


Any ideas where the problem is?

Thanks,
Jochen

[ips]

The crash is occurring in JNI code from SIGAR, the native library the Agent uses for process scans, system metrics, etc. I notice you are running an x86 JVM, but your system is x86_64. I would try with an x86_64 JVM instead. That will cause the x86_64 SIGAR shared library to be used, rather than the x86 one. I'd also recommend using a 1.6, rather than 1.5, JVM if possible. We'll probably be dropping support for 1.5 sometime in the not too distant future.

[j_ri]

o.k., with a 64-bit JVM it seems to work.

Thank you!
Jochen