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xen-devel
Re: [Xen-devel] Xenstore remove problem - causes bug #473
On Tuesday 10 January 2006 12:19, Keir Fraser wrote:
> Perhaps something is watching vif/1 and, when the watch fires,
> erroneously causing all vif/1* to get deleted?
>
I found it!
When a change occur on one backend device we call cleanup_devices() for each
device in bus.
The problem is: the test to see if that device was changed is being done with
strncmp(), using the length of the changed node as maximum length to be
compared.
I think the idea is that any sub-node should be matched also, like: if
"backend/1/status" changed we have to call backend_changed to "backend/1"
device, and that is ok. But with that code If we delete device "backend/1"
all devices matching "backend/1*" are being deleted also.
Suggestions on the best/prettier way to handle that?
--
Murillo Fernandes Bernardes
IBM Linux Technology Center
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