On Fri, 2015-09-04 at 10:57 +0100, Keith Roberts wrote:
Hi all.
I recently updated a box from openSUSE 12.3 to openSUSE 13.1 evergreen,
You might find it beneficial to ask on an openSUSE list or forum or
whatever.
… Is libvirt using xend or libxl as the underlying toolstack in your
configuration?
If libvirtd is using libxl then you _must_ stop the xend daemon altogether
since they do not play nice together (although the bugs do not look like
the log messages you have here IIRC).
If libvirt is using xend then you obviously need xend running, but I have
no idea how the domains from libvirt vs direct ones will interact.
-------------------------------------------------
Here’s an example of /var/log/messages from the Dom-0 VM host server:
[ 3929.511206] blktap_device_fail_pending_requests: 252:7: failing pending read of 11 pages
[ 3929.520454] end_request: I/O error, dev tapdevh, sector 21018928
[ 3929.529812] blktap_device_fail_pending_requests: 252:7: failing pending read of 11 pages
[ 3929.539240] end_request: I/O error, dev tapdevh, sector 21019016
[ 3929.539250] end_request: I/O error, dev tapdevh, sector 21020040
[ 3929.539272] end_request: I/O error, dev tapdevh, sector 21020128
[ 3929.539290] end_request: I/O error, dev tapdevh, sector 21020216
[ 3929.539307] end_request: I/O error, dev tapdevh, sector 21020304
[ 3929.539325] end_request: I/O error, dev tapdevh, sector 21020392
[ 3929.539346] end_request: I/O error, dev tapdevh, sector 21020480
[ 3929.539365] end_request: I/O error, dev tapdevh, sector 21020568
[ 3929.539387] end_request: I/O error, dev tapdevh, sector 21020656
These might not even be toolstack related, they are from tapdisk. Maybe
something broke with that in the upgrade? Or maybe the old and new
toolstacks choose different disk backends and the new one has chosen
tapdisk which was always buggy but you didn't notice?
Thanks for those pointers Ian.
I will take another look at this and report back with my findings soon.
Kind Regards,
Keith |
