[CentOS-virt] Frequent Kernel Oops' on CentOS 6 / Xen
Daniel Bradler
daniel at bradler.com
Tue Jul 29 19:44:39 UTC 2014
Hi,
we have a couple of nodes based on CentOS 6 and Xen4CentOS. Unfortunately
some of these nodes keep crashing frequenly.
We use the latest versions:
# uname -r
3.10.43-11.el6.centos.alt.x86_64
# xm info
host : vserver20
release : 3.10.43-11.el6.centos.alt.x86_64
version : #1 SMP Mon Jun 16 14:22:02 UTC 2014
machine : x86_64
nr_cpus : 24
nr_nodes : 2
cores_per_socket : 6
threads_per_core : 2
cpu_mhz : 2400
hw_caps : bfebfbff:2c100800:00000000:00003f40:009ee3fd:00000000:00000001:00000000
virt_caps : hvm hvm_directio
total_memory : 65527
free_memory : 22692
free_cpus : 0
xen_major : 4
xen_minor : 2
xen_extra : .4-33.el6
xen_caps : xen-3.0-x86_64 xen-3.0-x86_32p hvm-3.0-x86_32 hvm-3.0-x86_32p hvm-3.0-x86_64
xen_scheduler : credit
xen_pagesize : 4096
platform_params : virt_start=0xffff800000000000
xen_changeset : unavailable
xen_commandline : dom0_mem=2560M,max:3072M loglvl=all
guest_loglvl=all
cc_compiler : gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-4)
cc_compile_by : mockbuild
cc_compile_domain : centos.org
cc_compile_date : Mon Jun 16 17:22:14 UTC 2014
xend_config_format : 4
Our configuration looks as follows:
Grub:
title CentOS (3.10.43-11.el6.centos.alt.x86_64)
root (hd0,1)
kernel /xen.gz dom0_mem=2560M,max:3072M loglvl=all guest_loglvl=all
module /vmlinuz-3.10.43-11.el6.centos.alt.x86_64 ro root=/dev/sda1 KEYBOARDTYPE=pc KEYTABLE=de-latin1-nodeadkeys crashkernel=auto
module /initramfs-3.10.43-11.el6.centos.alt.x86_64.img
/etc/xen/xend-config.sxp
(xend-unix-server yes)
(xend-relocation-server no)
(xend-relocation-hosts-allow '^localhost$ ^localhost\\.localdomain$')
(network-script network-bridge)
(vif-script vif-bridge)
(dom0-min-mem 1024)
(enable-dom0-ballooning no)
(total_available_memory 0)
(dom0-cpus 0)
(vncpasswd '')
I've attached the logfile information regarding the latest crash as
crash.log?
Does anybody has an idea how to solve these issues?
Kind Regards
Daniel Bradler
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