[CentOS-virt] Frequent Kernel Oops' on CentOS 6 / Xen
George Dunlap
dunlapg at umich.edu
Wed Jul 30 14:09:00 UTC 2014
On Tue, Jul 29, 2014 at 3:44 PM, Daniel Bradler <daniel at bradler.com> wrote:
> 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?
Thanks for this report -- would it be possible to get a full console
log from boot?
-George
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