Mailinglist Archive: opensuse-virtual (68 mails)

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[opensuse-virtual] "EVTCHNOP failure" @ OS 12.3 + Xen 4.3 boot for some Guests; launch manually OK
I've recently upgraded pkgs an Opensuse 12.3 + XEN 4.3
(xen-4.3.0_08-264.1.x86_64) server.

It's got two guests set for auto-launch @ boot.

It's been working fine for awhile. The guest cfg's have not changed in
ages. Just the upgrade has occured recently.

Now, reproducibly after boot, one Guest is missing,

xl list
Name ID Mem
VCPUs State Time(s)
(null) 0 985
4 r----- 44.2 <====== Why "(null)"
here? systemd?
test2 2 1024
4 -b---- 13.3

but launches manually

xl create /etc/xen/auto/test1.cfg
xl list
Name ID Mem
VCPUs State Time(s)
(null) 0 985
4 r----- 48.2
test2 2 1024
4 -b---- 13.8
test1 3 768
2 -b---- 2.3

and functions normally.

checking xen boot logs, I find these, new failures

xl dmesg
...
[ OK ] Started Haveged Entropy Gathering Daemon.
[ OK ] Started Restore Sound Card State.
[ OK ] Started LSB: irqbalance daemon providing irq
balancing on MP-machines.
[ OK ] Started LSB: Framebuffer setup.
[ 35.614880] Event-channel device installed.
[ 35.677851] usbcore: registered new interface driver
usbback
[ 35.711552] pciback: backend is vpci
[ 35.748410] blktap_device_init: blktap device major
252

Welcome to openSUSE 12.3 "Dartmouth" - Kernel
3.7.10-1.16-xen (xvc0).


testsvr login:

(XEN) [2013-08-15 01:42:22] event_channel.c:233:d0
EVTCHNOP failure: domain 2, error -22
(XEN) [2013-08-15 01:42:22] event_channel.c:233:d0
EVTCHNOP failure: domain 2, error -22
(XEN) [2013-08-15 01:42:22] event_channel.c:233:d0
EVTCHNOP failure: domain 2, error -22
(XEN) [2013-08-15 01:42:22] event_channel.c:233:d0
EVTCHNOP failure: domain 2, error -22
(XEN) [2013-08-15 01:42:22] event_channel.c:233:d0
EVTCHNOP failure: domain 2, error -22
(XEN) [2013-08-15 01:42:22] event_channel.c:233:d0
EVTCHNOP failure: domain 2, error -22
(XEN) [2013-08-15 01:42:22] event_channel.c:233:d0
EVTCHNOP failure: domain 2, error -22
(XEN) [2013-08-15 01:42:22] event_channel.c:233:d0
EVTCHNOP failure: domain 2, error -22
(XEN) [2013-08-15 01:42:22] event_channel.c:233:d0
EVTCHNOP failure: domain 2, error -22
(XEN) [2013-08-15 01:42:22] event_channel.c:233:d0
EVTCHNOP failure: domain 2, error -22
[ OK ] Started LSB: Configure network interfaces and
set up routing.
[ OK ] Reached target Network.
Starting Command Scheduler...
...

Those

"event_channel.c:233:d0 EVTCHNOP failure: domain 2, error -22"

errors are new to me.

Looks like a XEN issue. I've seen recent work on event channel deadlock
on the dev list, but my xen's logs don't mention anything evtchn-related
since ~ Nov 2011.

Before deciding to file a bug, I need to do some local troubleshooting.

Any suggestions as to what this might be about, or specific additional
info that might be enlightening?

AR
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