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Re: [Xen-devel] Re: [Regression] Changeset #17532 breaks xenner

To: Ian Campbell <Ian.Campbell@xxxxxxxxxx>
Subject: Re: [Xen-devel] Re: [Regression] Changeset #17532 breaks xenner
From: Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>
Date: Fri, 18 Jul 2008 15:21:02 +0100
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx, Alexander Graf <agraf@xxxxxxx>, kwolf@xxxxxxx, kraxel@xxxxxxxxxx
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Ian Campbell writes ("[Xen-devel] Re: [Regression] Changeset #17532 breaks 
xenner"):
> On Tue, 2008-07-15 at 18:28 +0200, Alexander Graf wrote:
> > To easily reproduce the issue, run xenstored with that patch applied and 
> > start xenner. As soon as xenner quits (I usually killed it because my 
> > guest hung), xenstored abort()ed on me.
> 
> I'm afraid I don't have a xenner setup. Please could you collect a
> backtrace of the crash. Also perhaps it would be worth instrumenting up
> the ref counting functions to log incr/decr to spot where the count goes
> wrong.

Does xenner connect to xenstored via an AF_UNIX socket or via a shared
memory ring ?  If the former I would suggest that attaching to
xenstored with strace, and watching it die, would be one good thing to
do.

Ian.

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