I need help trying to overcome what appear to be parsing errors in
a xen HVM guest configuration in Xen 4.8.0. But, it may be that I have
missed something in configuration and the errors are not truly indicative
of a misconfiguration.
Also, this is my first guest attempt on this new Xen Server (which I
boot up manually from the EFI console).
One thing I am unsure about is the designation of the disk's vdev
settings
despite reading
https://xenbits.xen.org/docs/4.8-testing/misc/xl-disk-configuration.txt
I am still not certain what I should be specifying. My server has a
single SATA drive. I used gparted to configure for my initial Gentoo
session (sda1-sda4), and then used LVM to manage the remainder sda5.
When I try to launch a guest (new), it fails with:
zeta xen # /etc/init.d/xencommons status
* status: started
zeta xen # xl -vvvv create /etc/xen/foxserver.cfg -c
Parsing config from /etc/xen/foxserver.cfg
libxl: error: libxl_xshelp.c:149:libxl__xs_get_dompath: failed to
get dompath for 0: No such process
libxl: error: libxl.c:4195:libxl_set_memory_target: unable to
retrieve domain configuration: No such file or directory
failed to free memory for the domain
xencall:buffer: debug: total allocations:19 total releases:19
xencall:buffer: debug: current allocations:0 maximum allocations:2
xencall:buffer: debug: cache current size:2
xencall:buffer: debug: cache hits:15 misses:2 toobig:2
zeta xen #
There are no logs and my boot configuration provides for logs
(see /boot/efi/gentoo/xen-4.8.0.config at end):
zeta xen # ls -la /var/log/xen-consoles/
total 8
drwxr-xr-x 2 root root 4096 Dec 14 13:01 .
drwxr-xr-x 6 root root 4096 Dec 8 17:28 ..
-rw-r--r-- 1 root root 0 Dec 14 13:00
.keep_app-emulation_xen-tools-0
zeta xen #
Have I misconfigured or completely missing something? What can I do
to provide further details? I did try to re-install xen-tools with the
debug flag, but the build failed: see Gentoo Bug #602656
"xen-tools-4.8.0 build fails: implicit declaration of function
'unlikely'"
https://bugs.gentoo.org/show_bug.cgi?id=602656
Suggestions?
Thank you,
John
========================================================================
Below are bits of information which are suggested at
https://wiki.xenproject.org/wiki/Reporting_Bugs_against_Xen_Project#Guest_console_logs
UNAME:
zeta jlpoole # uname -a
Linux zeta 4.4.26-gentoo #1 SMP Wed Dec 7 20:56:22 PST 2016 x86_64
Intel(R) Atom(TM) CPU C2750 @ 2.40GHz GenuineIntel GNU/Linux
zeta jlpoole #
XL Info:
zeta jlpoole # xl info
host : zeta
release : 4.4.26-gentoo
version : #1 SMP Wed Dec 7 20:56:22 PST 2016
machine : x86_64
nr_cpus : 8
max_cpu_id : 7
nr_nodes : 1
cores_per_socket : 8
threads_per_core : 1
cpu_mhz : 2400
hw_caps :
b7ebfbff:43d8e3bf:28100800:00000101:00000000:00002282:00000000:00000100
virt_caps : hvm
total_memory : 63207
free_memory : 129
sharing_freed_memory : 0
sharing_used_memory : 0
outstanding_claims : 0
free_cpus : 0
xen_major : 4
xen_minor : 8
xen_extra : .0
xen_version : 4.8.0
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 :
xen_commandline : console=vga,com1 com1=9600 loglvl=all
guest_loglvl=all
cc_compiler : x86_64-pc-linux-gnu-gcc (Gentoo 4.9.3
p1.5, pie-0.6.4) 4.9.3
cc_compile_by :
cc_compile_domain : [unknown]
cc_compile_date : Fri Dec 9 09:25:39 PST 2016
build_id : 22b45f9d3e22085c9d9f204322ed8920
xend_config_format : 4
zeta jlpoole #
HVM Configuration:
zeta xen # pwd; cat foxserver.cfg
/etc/xen
# This configures an HVM rather than PV guest
builder = "hvm"
name = "foxserver"
#boot="c"
kernel = "/boot/kernel-genkernel-x86_64-4.4.26-gentoo"
ramdisk = "/boot/initramfs-genkernel-x86_64-4.4.26-gentoo"
# memory is "starting amount" in MBs
memory = 512
# Number of VCPUS
vcpus = 2
vif = [ '' ]
dhcp = "dhcp"
disk = [
'format=raw, vdev=xvda, access=rw, target=/dev/vg0/foxserver',
'format=raw, vdev=xvda, access=rw, target=/dev/vg0/foxswap'
]
#root = "/dev/vg0/foxserver ro"
# Guest VGA console configuration, either SDL or VNC
sdl = 1
# end
zeta xen #
BLOCKS:
zeta xen # lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 1 3.7T 0 disk
+-sda1 8:1 1 2M 0 part
+-sda2 8:2 1 128M 0 part /boot
+-sda3 8:3 1 512M 0 part [SWAP]
+-sda4 8:4 1 19.5G 0 part /
+-sda5 8:5 1 3.6T 0 part
+-vg0-foxserver 253:0 0 50G 0 lvm
+-vg0-foxswap 253:1 0 8G 0 lvm
zeta xen #
INSTALLED XEN & XEN-TOOLS:
zeta xen # eix -I xen
[I] app-emulation/xen
Available versions: 4.6.4-r1^st ~4.6.4-r2^st (~)4.7.1-r1^st
(~)4.7.1-r2^st (~)4.8.0^st {custom-cflags debug efi flask}
Installed versions: 4.8.0^st[?](09:27:07 AM 12/09/2016)(efi
flask -custom-cflags -debug)
Homepage: http://xen.org/
Description: The Xen virtual machine monitor
[I] app-emulation/xen-tools
Available versions: 4.6.4-r1(0/4.6)^t ~4.6.4-r2(0/4.6)^t
~4.6.4-r3(0/4.6)^t ~4.7.1-r2(0/4.7)^t ~4.7.1-r3(0/4.7)^t
(~)4.8.0(0/4.8)^t {api custom-cflags debug doc flask hvm ocaml ovmf
+pam pygrub python (+)qemu +qemu-traditional screen sdl static-libs
system-qemu system-seabios PYTHON_TARGETS="python2_7"}
Installed versions: 4.8.0^t(01:00:41 PM 12/14/2016)(flask
hvm ovmf pam qemu qemu-traditional screen sdl -api -custom-cflags
-debug -doc -ocaml -pygrub -python -static-libs -system-qemu
-system-seabios PYTHON_TARGETS="python2_7")
Homepage: http://xen.org/
Description: Xen tools including QEMU and xl
Found 2 matches
zeta xen #
PYTHON:
zeta xen # python -V
Python 2.7.12
zeta xen #
XEN BOOT Configuration:
zeta xen # cat /boot/efi/gentoo/xen-4.8.0.config
[global]
default=abc
[abc]
options=console=vga,com1 com1=9600 loglvl=all guest_loglvl=all
kernel=kernel-genkernel-x86_64-4.4.26-gentoo root=/dev/sda4
ramdisk=initramfs-genkernel-x86_64-4.4.26-gentoo
zeta xen #
XENCOMMONS Configuration:
zeta xen # cat /etc/conf.d/xencommons
# /etc/conf.d/xencommons
# Load xen's kernel modules, and this will override defaults
XEN_KERNEL_MODULES=""
#
# 12/14/2016 jlpoole: added per
#
https://wiki.xenproject.org/wiki/Reporting_Bugs_against_Xen_Project#Guest_console_logs
#
XENCONSOLED_TRACE=guest
zeta xen #
