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

To: Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>
Subject: Re: [Xen-devel] Re: [Regression] Changeset #17532 breaks xenner
From: Gerd Hoffmann <kraxel@xxxxxxxxxx>
Date: Fri, 18 Jul 2008 17:06:37 +0200
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx, Ian Campbell <Ian.Campbell@xxxxxxxxxx>, kwolf@xxxxxxx, Alexander Graf <agraf@xxxxxxx>
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Ian Jackson wrote:
> 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 ?

Both ;)

Guests talks to xenstored via shared page, and xenner itself via socket
(like xend, for device setup etc).  backend daemons talk via socket too.

cheers,
  Gerd

-- 
http://kraxel.fedorapeople.org/xenner/

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