Xen memory management not working
Hello everyone,
we have issue with memory increase for virtual servers on one of our
boxes. We are running Debian Squeeze and Xen 4.0.
Looks like after last upgrade of xen-utils-4.0 and xenstore-utils
without upgrade of xen-hypervisor and linux-image packages the memory
management stopped working.
server2:~# xm list tis
Name ID Mem VCPUs State Time(s)
tis 62 1024 2 -b---- 392680.7
server2:~# xm mem-set tis 2048
server2:~# xm list tis
Name ID Mem VCPUs State Time(s)
tis 62 2048 2 -b---- 392680.9
The target_kb value changed on VPS, but the available memory didn't
increased for some unknown reason:
tis:~# cat /sys/devices/system/xen_memory/xen_memory0/target_kb
1048576
tis:~# cat /sys/devices/system/xen_memory/xen_memory0/target_kb
2097152
tis:~# grep MemTotal /proc/meminfo
MemTotal: 1044316 kB
Xen packages installed on dom0:
server2:~# dpkg -l | grep xen
ii libxenstore3.0 4.0.1-4 Xenstore communications library for Xen
ii linux-image-2.6-xen-amd64 2.6.32+29 Linux 2.6 for 64-bit PCs (meta-package), Xen dom0 support
ii linux-image-2.6.26-2-xen-amd64 2.6.26-26lenny2 Linux 2.6.26 image on AMD64, oldstyle Xen support
ii linux-image-2.6.32-5-xen-amd64 2.6.32-38 Linux 2.6.32 for 64-bit PCs, Xen dom0 support
ii linux-modules-2.6-xen-amd64 2.6.26+17+lenny1 Linux 2.6 modules on AMD64
ii linux-modules-2.6.26-2-xen-amd64 2.6.26-26lenny2 Linux 2.6.26 modules on AMD64
ii xen-hypervisor-3.2-1-amd64 3.2.1-2 The Xen Hypervisor on AMD64
ii xen-hypervisor-4.0-amd64 4.0.1-4 The Xen Hypervisor on AMD64
ii xen-qemu-dm-4.0 4.0.1-2 Xen Qemu Device Model virtual machine hardware emulator
ii xen-shell 1.8-3 Console based Xen administration utility
ii xen-tools 4.2-1 Tools to manage Xen virtual servers
ii xen-utils-4.0 4.0.1-4 XEN administrative tools
ii xen-utils-common 4.0.0-1 XEN administrative tools - common files
ii xenstore-utils 4.0.1-4 Xenstore utilities for Xen
ii xenwatch 0.5.4-2 Virtualization utilities, mostly for Xen
server2:~# uname -a
Linux server2 2.6.32-5-xen-amd64 #1 SMP Mon Oct 3 07:53:54 UTC 2011 x86_64 GNU/Linux
And kernel version on domU:
tis:~# uname -a
Linux tis 2.6.32-5-xen-amd64 #1 SMP Mon Oct 3 07:53:54 UTC 2011 x86_64 GNU/Linux
Could anybody point me to deeper investigation of this strange issue and
if not - is there any way to get packages of xen-utils-4.0 and
xenstore-utils before the upgrade to latest version?
Best regards,
--
Peter Viskup
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