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Re: [Xen-devel] Xenstore remove problem - causes bug #473

To: Murillo Bernardes <mfb@xxxxxxxxxx>
Subject: Re: [Xen-devel] Xenstore remove problem - causes bug #473
From: Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>
Date: Tue, 10 Jan 2006 14:19:27 +0000
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On 10 Jan 2006, at 13:01, Murillo Bernardes wrote:

Xenstore remove is removing more than it is supposed to. Like:

xenstore-rm /local/domain/0/backend/vif/1

removes /local/domain/0/backend/vif/1*

That causes bug #473

I tried to find the problem in xenstore_client.c, but it seems to be ok.
Probably the problem in xenstored, but I could not find where exactly.

Any clue?

I'm not sure it's that simple. Try:

xenstore-write /foo/1/bar 0
xenstore-write /foo/11/bar 0
xenstore-rm /foo/1

I find that /foo/11 is not deleted.

Perhaps something is watching vif/1 and, when the watch fires, erroneously causing all vif/1* to get deleted?

The xenstored code of interest, by the way, is in xenstored_core.c:do_rm()

 -- Keir

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