RE: [Xen-devel] domains not shutting down properly - the problem isback again

["James Harper" <james.harper@xxxxxxxxxxxxxxxx>]

> On 01/01/2009 13:09, "James Harper" <james.harper@xxxxxxxxxxxxxxxx>
wrote:
> 
> >> Domains don't die, they just stay in the 's' state until you 'xm
> >> destroy' them, and even after that there is still a page or two
being
> >> used according to 'xm debug q'.
> >>
> >> I have upgraded to 3.3.1-rc4 but it doesn't seem to make a
> >> difference...
> >
> > Also, 'lsevtchn' shows one extra 'Channel is waiting interdom
> > connection' after starting and then destroying a new domain.
> 
> Backend driver not cleaning up due to xend not correctly deleting a
> directory from xenstore, or because of hotplug/udev script problems?
> There's
> some interaction going on with your dom0 installation, since no one
else
> has
> seen or reported this issue.

When I start the domain, 'udevadm monitor' says:

UDEV  [1230853478.622189] add      /devices/xen-backend/vbd-3-769
(xen-backend)
UDEV  [1230853478.684237] add      /devices/xen-backend/vbd-3-770
(xen-backend)
UDEV  [1230853478.830864] add      /devices/xen-backend/vif-3-0
(xen-backend)
UEVENT[1230853478.835024] add      /class/net/vif3.0 (net)
UEVENT[1230853478.837346] online   /devices/xen-backend/vif-3-0
(xen-backend)
UDEV  [1230853478.838478] online   /devices/xen-backend/vif-3-0
(xen-backend)
UDEV  [1230853478.871352] add      /class/net/vif3.0 (net)
UEVENT[1230853479.026088] add      /devices/xen-backend/console-3-0
(xen-backend)
UDEV  [1230853479.027654] add      /devices/xen-backend/console-3-0
(xen-backend)

Then when I issue the shutdown:

UDEV  [1230853614.593201] offline  /devices/xen-backend/vif-3-0
(xen-backend)
UDEV  [1230853614.593239] remove   /class/net/vif3.0 (net)

And because the domain is now stuck in the 's' state, I have to issue
the 'destroy':

UDEV  [1230853668.181925] remove   /devices/xen-backend/console-3-0
(xen-backend)
UDEV  [1230853668.219248] remove   /devices/xen-backend/vbd-3-769
(xen-backend)
UDEV  [1230853668.230573] remove   /devices/xen-backend/vbd-3-770
(xen-backend)
UDEV  [1230853668.238480] remove   /devices/xen-backend/vif-3-0
(xen-backend)

On another machine that does not have this problem, a similar domain
(different version of udev) does this on start:

UEVENT[1230853752.615378] add@/devices/xen-backend/vbd-10-769
UDEV  [1230853752.615378] add@/devices/xen-backend/vbd-10-769
UEVENT[1230853752.653987] add@/devices/xen-backend/vbd-10-770
UDEV  [1230853752.653987] add@/devices/xen-backend/vbd-10-770
UEVENT[1230853752.685909] add@/devices/xen-backend/vif-10-0
UDEV  [1230853752.685909] add@/devices/xen-backend/vif-10-0
UEVENT[1230853752.689908] add@/class/net/vif10.0
UDEV  [1230853752.697530] add@/class/net/vif10.0
UEVENT[1230853752.698462] online@/devices/xen-backend/vif-10-0
UDEV  [1230853752.699603] online@/devices/xen-backend/vif-10-0
UEVENT[1230853752.773270] add@/devices/xen-backend/console-10-0
UDEV  [1230853752.781188] add@/devices/xen-backend/console-10-0

And this on shutdown (shutdown was actually done before the start):

UEVENT[1230853735.596056] remove@/devices/xen-backend/console-7-0
UDEV  [1230853735.596056] remove@/devices/xen-backend/console-7-0
UEVENT[1230853735.625884] remove@/devices/xen-backend/vbd-7-769
UDEV  [1230853735.625884] remove@/devices/xen-backend/vbd-7-769
UEVENT[1230853735.641803] remove@/devices/xen-backend/vbd-7-770
UDEV  [1230853735.641803] remove@/devices/xen-backend/vbd-7-770
UEVENT[1230853735.653536] offline@/devices/xen-backend/vif-7-0
UDEV  [1230853735.653536] offline@/devices/xen-backend/vif-7-0
UEVENT[1230853735.764489] remove@/class/net/vif7.0
UDEV  [1230853735.764489] remove@/class/net/vif7.0
UEVENT[1230853736.005804] remove@/devices/xen-backend/vif-7-0
UDEV  [1230853736.135452] remove@/devices/xen-backend/vif-7-0

Does that suggest anything obvious?

Thanks

James

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