Dear Xen-users at Xen Discuss,
I started this thread on [email protected]
but would like to carry on the discussion here. (as it's a 9.06 based
platform)
Original discussion (I'll only repeat the main bits)
http://lists.xensource.com/archives/html/xen-users/2009-11/msg00338.html
My Setup:
very recent quad core Xeon 2Ghz,
Xen 3.1 from OpenSolaris 09/06
OpenSolaris 09/06 Dom0
Ubuntu 8.04 with 2.6.24-25-xen kernel image OR debian 2.6.26-2-xen-amd64
kernel
JVMs: ANY (1.5.0 - 1.7, either openjdk or sun)
My Problem:
ubuntu (8.04) / Debian (5) hosts cannot run a JBoss instance when the
virtual machine is configured with more than 1791MB of memory.
Symptoms:
JVM Seg fault.
Current thread (0x000000000061e800): GCTaskThread [stack:
0x0000000041166000,0x0000000041267000] [id=7238]
siginfo:si_signo=SIGSEGV: si_errno=0, si_code=1 (SEGV_MAPERR),
si_addr=0x0000000000000018
Notes: If I set the RAM to 1791 it's as stable as normal, if I set the
RAM to 1792 or above, the JVM segfaults within 10secs.
If I use an HVM vm, it works fine.
Any pointers/input or help with this would be greatly appreciated.
A great many thanks
Rob
--
Rob Shepherd BEng PhD - Director / Senior Engineer - DataCymru Ltd
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