Re: [Xen-devel] reference counting complaints

[Ian Pratt <Ian.Pratt@xxxxxxxxxxxx>]

> Are these anything to worry about?

Assuming the domain disappeared after it exited, no, there's
nothing to worry about.

In debug builds we run the audit code before destroying the
domain. In the case you posted, the audit code finds a recursive
PGD mapping, and prints some information about it. It's quite
chatty because such mappings aren't created by Linux, so its
deemed to be noteworthy. For FreeBSD and NetBSD this is normal
behaviour, so nothing to worry about.

We could quieten the debug build message down, but since both
recursive and external PGD mappings are tricky to deal with I
actually find it quite reassuring to have the debug message
coming out to announce that everything is actually working
just fine...

Ian


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