Hello I am using SLES 11 SP1, this only runs one DomU (the computer is dedicated to just that)
Features:
CPU: E5300
kernel: 2.6.32.12-0.7-xen
Domain-0 = 1014 MB
DomU backupPC = 1948 MB (just run backuppc)

Whenever I have a few others crash on the computer,
I have not always seen an error in the log, but this and says 'general protection fault: 0000 [# 1] SMP' it seemed good segirle track from google are showing similar problems of kernel bugs. (only found old post)
As I have SLES 11 SP1 and the kernel is not that old, I wonder if there will be a configuration issue?
Probably next week will update to SP2, but if I can give some indication of the error will be appreciated and welcomed
The computer falllo at 9 minutes into the backup backuppc.

I point out the error and my settings.

var/log/messages
Jan 10 20:56:08 hostName -- MARK --
Jan 10 21:06:08 hostName smartd[4472]: Device: /dev/sda [SAT], SMART Prefailure Attribute: 1 Raw_Read_Error_Rate changed from 99 to 100
Jan 10 21:06:08 hostName smartd[4472]: Device: /dev/sda [SAT], SMART Usage Attribute: 194 Temperature_Celsius changed from 157 to 146
Jan 10 21:09:37 hostName kernel: [ 5670.290561] general protection fault: 0000 [#1] SMP
Jan 10 21:09:37 hostName kernel: [ 5670.290569] last sysfs file: /sys/devices/xen-backend/vbd-1-51776/statistics/wr_sect
Jan 10 21:09:37 hostName kernel: [ 5670.290572] CPU 0
Jan 10 21:09:37 hostName kernel: [ 5670.290574] Modules linked in: sha256_generic cryptd aes_x86_64 aes_generic cbc dm_crypt ip6t_LOG xt_tcpudp xt_pkttype x
t_physdev ipt_LOG xt_limit usbbk gntdev netbk blkbk blkback_pagemap blktap domctl xenbus_be nls_utf8 cifs(X) bridge stp llc microcode ip6t_REJECT nf_conntra
ck_ipv6 ip6table_raw xt_NOTRACK ipt_REJECT xt_state iptable_raw iptable_filter ip6table_mangle nf_conntrack_netbios_ns nf_conntrack_ipv4 nf_conntrack nf_def
rag_ipv4 ip_tables ip6table_filter ip6_tables x_tables ipv6 fuse loop dm_mod 8139too 8139cp rtc_cmos rtc_core rtc_lib 8250_pnp 8250 serial_core tpm_tis usb_
storage tpm tpm_bios sg mii i2c_i801 iTCO_wdt iTCO_vendor_support pcspkr serio_raw sd_mod crc_t10dif uhci_hcd ehci_hcd usbcore i915 drm_kms_helper drm i2c_a
lgo_bit button i2c_core video output intel_agp agpgart xenblk cdrom xennet edd ext3 mbcache jbd fan processor ide_pci_generic ide_core ata_generic ata_piix
pata_jmicron libata scsi_mod thermal thermal_sys hwmon
Jan 10 21:09:37 hostName kernel: [ 5670.290647] Supported: Yes
Jan 10 21:09:37 hostName kernel: [ 5670.290650] Pid: 4149, comm: qemu-dm Tainted: G W X 2.6.32.12-0.7-xen #1
Jan 10 21:09:37 hostName kernel: [ 5670.290653] RIP: e030:[<ffffffff800eb459>] [<ffffffff800eb459>] poll_schedule_timeout+0x49/0x50
Jan 10 21:09:37 hostName kernel: [ 5670.290662] RSP: e02b:ffff88003e847a00 EFLAGS: 00010246
Jan 10 21:09:37 hostName kernel: [ 5670.290664] RAX: 0000000000000000 RBX: ffff88003f306040 RCX: ffffffff8059c0a0
Jan 10 21:09:37 hostName kernel: [ 5670.290672] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88000200e1c0
Jan 11 08:29:27 hostName syslog-ng[2223]: syslog-ng starting up; version='2.0.9
DomU backupPC
name = "backupPC"
maxmem = 1948
memory = 1948

vcpus = 2
bootloader = "/usr/bin/pygrub"
bootargs = "-q"
extra="clocksource=jiffies"
on_poweroff = "destroy"
on_reboot = "restart"
on_crash = "destroy"

vfb = [ "type=vnc,vncunused=1,keymap=en-us" ]
disk = [ "tap:qcow2:/mnt/xendomain/backupPC/disco1.qcow2,xvda,w!"
,"tap:qcow2:/mnt/xendomain/backupPC/disco2.qcow2,xvdb,w"
,"phy:/dev/gv_xen/backupPC_data,xvde,w!"
]
vif = [ "mac=00:16:3e:02:58:00,bridge=br0,script=vif-bridge" ]

Grub
title Xen -- SUSE Linux Enterprise Server 11 SP1 - 2.6.32.12-0.7
root (hd0,2)
kernel /boot/xen.gz vga=mode-0x317 dom0_mem=1024M loglvl=all guest_loglvl=all CPUFREQ=no apparmor=0 selinux=0
module /boot/vmlinuz-2.6.32.12-0.7-xen root=/dev/disk/by-id/ata-Hitachi_HDS721010CLA332_JP2940HD0P7D3C-part3 resume=/dev/disk/by-id/ata-Hitachi_HDS721010CLA332_JP2940HD0P7D3C-part5 splash=silent showopts vga=0x317
module /boot/initrd-2.6.32.12-0.7-xen
/etc/xen/xend-config.sxp
(xend-unix-server yes)
(xend-relocation-hosts-allow '^localhost$ ^localhost\\.localdomain$')
(network-script )
(vif-script vif-bridge)
(dom0-min-mem 256)
(enable-dom0-ballooning no)
(total_available_memory 0)
(dom0-cpus 1)
(enable-dump no)
(vncpasswd '')