[Xen-users] xl create and destroy segfault before completing

[Ian Macdonald <imac@xxxxxxxxxx>]

Hi,

I am running Xen in PV mode on Debian stretch on an Intel 64-bit machine
in EFI mode.

I can use xen-create-image to create a domU machine but when I run 'xl
create' or 'xl destroy', the xl binary segfaults. The commands seem to
work, as 'xl create' gets the domU machine running correctly, as far as
I can tell, but then the xl command segfaults before exiting. The 'xl
destroy' command also appears to work, it kills off the domU as it
should, but then xl segfaults. All other 'xl' commands seem to work,
only 'create' and 'destroy' seem to segfault like this.

The domU machines seem to work correctly, but I would like to understand
and solve this problem before putting this server into production. I'd
appreciate any suggestions anyone has about what might be going on here.

Here's the output of 'xl -vvvv create /etc/xen/krytest.cfg':
https://pastebin.com/RmcdRzgJ

...And here's the output of 'xl -vvvv destroy krytest':
https://pastebin.com/WCGZseP4

Here's the output of
'strace -eopen /usr/sbin/xl create /etc/xen/krytest.cfg':
https://pastebin.com/9R1dNTcx

The 'create' and 'deploy' commands both provoke a 'Segmentation Fault',
although the domU appears to be correctly created and destroyed.

The /etc/xen/krytest.cfg config file looks like this:

bootloader = '/usr/lib/xen-4.8/bin/pygrub'
vcpus       = '2'
memory      = '1024'
cpus        = "5-6"
root        = '/dev/xvda2 ro'
disk        = [
                  'phy:/dev/vg0/krytest-root,xvda2,w',
                  'phy:/dev/vg0/krytest-var,xvda3,w',
                  'phy:/dev/vg0/krytest-swap,xvda1,w',
              ]
name        = 'krytest'
vif         = [
'ip=193.XX.XX.162,mac=00:16:3E:0B:12:4E,vifname=vif-krytest,bridge=xenbr0' ]
on_poweroff = 'destroy'
on_reboot   = 'restart'
on_crash    = 'restart'

Thanks in advance for any help anyone can provide me towards sorting out
this problem.

Best wishes,
-Ian Macdonald
 GreenNet Ltd

-- 
Ian Macdonald
GPG/PGP: 0778 889F EE5D DFB4 D195 97A7 779B D6BF A305 DEFC
XMPP/OTR: imac@xxxxxxxxxx  Wire.com: @idmacdonald

GreenNet Ltd, 56-64 Leonard Street, London EC2A 4LT
UK Tel:      0330 355 4011
Intl:        +44 20 7065 0935
Twitter:     @GreenNetISP
Registered in England & Wales, Company No. 02070438

Attachment: signature.asc
Description: OpenPGP digital signature

_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxxx
https://lists.xenproject.org/mailman/listinfo/xen-users