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Re: [Xen-devel] Backend in user space, how is its kernel dev unregistere
| To: | Markus Armbruster <armbru@xxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] Backend in user space, how is its kernel dev unregistered? |
| From: | Keir Fraser <keir.fraser@xxxxxxxxxxxxx> |
| Date: | Wed, 04 Mar 2009 19:14:41 +0000 |
| Cc: | |
| Delivery-date: | Wed, 04 Mar 2009 11:15:08 -0800 |
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| Thread-topic: | [Xen-devel] Backend in user space, how is its kernel dev unregistered? |
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On 04/03/2009 19:02, "Markus Armbruster" <armbru@xxxxxxxxxx> wrote: > Unregistering is the device driver's job: it watches xenstore, and when > it sees the front end shut down, it calls device_unregister(). > > But what if the device driver is in user space? vfb and vkbd are. I > can't see how their kernel devices can ever get unregistered. > > If that is true, any ideas on how to plug the leak? Backends also tear down when their xenstore directory is removed. I think that's the job of xenbus_cleanup_devices() in the 2.6.18 tree. -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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