After a few days, one of my DomU becomes unresponsive.
Here''s the output of my DomU''s.
root@xenII:/var/log/xen# xl list
Name ID Mem VCPUs State Time(s)
Domain-0 0 7126 2 r----- 723932.0
redhat-sdsweb 11 4091 2 -b---- 92633.1
w2k8-AD 79 16373 4 -b---- 35009.8
w2k8-Quantum 194 8181 2 -b---- 40529.0
debian-ADSamba 196 2043 2 ------ 1358.4
w2k8-RD 199 16379 4 -b---- 1842.7
root@xenII:/var/log/xen#
The DomU that always stalls after a few days is the ID 196.
I can''t ssh to this server, and the vnc console is gone.
The Dom0 and all other DomU''s are fine.
I have to destory the DomU and re-start it again. The logs in the DomU (Debian
Wheezy) don''t
suggest any kind of crash.
I''m not sure if any of the xen logs on the Dom0 will tell me anything.
Not sure where to look.
I believe also that during heavy network load on the DomU is when it hangs. (but
not confirmed)
Here''s the output of my DomU config.
kernel = "/usr/lib/xen-4.1/boot/hvmloader"
builder=''hvm''
memory = 2048
vcpus = ''1''
pae = 1
acpi = 1
apic = 1
name = "debian-ADSamba"
vif = [ ''model=e1000, mac=00:58:00:00:00:05, bridge=xenbr1'' ]
disk = [ ''file:/home/XEN_A/debian-ADSamba/disk.img,xvda,w'',
''file:/root/ISO/debian.iso,xvdc:cdrom,r'' ]
device_model = ''/usr/lib/xen-4.1/bin/qemu-dm''
#-----------------------------------------------------------------------------
# boot on floppy (a), hard disk (c) or CD-ROM (d)
# default: hard disk, cd-rom, floppy
boot="cd"
usb=1
usbdevice=''tablet''
sdl=0
vnc=1
vncconsole=1
#vncpasswd=''''
serial=''pty''
on_poweroff = ''destroy''
on_reboot = ''restart''
I have no clue where to start troubleshooting.
Here''s my xen setup:
root@xenII:~# dpkg -l |grep xen
ii libxen-4.1 4.1.4-3+deb7u1 amd64
Public libs for Xen
ii libxenstore3.0 4.1.4-3+deb7u1 amd64
Xenstore communications library for Xen
ii xen-hypervisor-4.1-amd64 4.1.4-3+deb7u1 amd64
Xen Hypervisor on AMD64
ii xen-tools 4.3.1-1 all
Tools to manage Xen virtual servers
ii xen-utils-4.1 4.1.4-3+deb7u1 amd64
XEN administrative tools
ii xen-utils-common 4.1.4-3+deb7u1 all
Xen administrative tools - common files
ii xenstore-utils 4.1.4-3+deb7u1 amd64
Xenstore utilities for Xen
root@xenII:~# uname -a
Linux xenII.sd57.bc.ca 3.2.0-4-amd64 #1 SMP Debian 3.2.41-2 x86_64 GNU/Linux
root@xenII:~#
Any help to troubleshoot this would be great!
Thanks,
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