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Re: [Xen-devel] Bug in Xen 4.1.0: Xen leaks tapdisk2 processes

To: Nathan March <nathan@xxxxxx>
Subject: Re: [Xen-devel] Bug in Xen 4.1.0: Xen leaks tapdisk2 processes
From: Ian Campbell <Ian.Campbell@xxxxxxxxxxxxx>
Date: Thu, 5 May 2011 10:45:10 +0100
Cc: Jim Fehlig <jfehlig@xxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>, Andreas Kinzler <ml-xen-devel@xxxxxx>, Daniel Stodden <Daniel.Stodden@xxxxxxxxxx>
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On Tue, 2011-05-03 at 18:18 +0100, Nathan March wrote:
> On 5/3/2011 8:56 AM, Ian Campbell wrote:
> > On Fri, 2011-04-29 at 20:39 +0100, Nathan March wrote:
> >>> > > in Xen 4.1.0 using "tap2:aio:/dev/sdaX" Xen leaks tapdisk2 processes.
> >>> > > After running some VMs and terminating them, only dom0 running, "ps
> >>> > > aux" shows:
> >> > 
> >> > I can definitely confirm this, on a machine with 2 active VMs:
> > I'm assuming this is xl specific and that xend isn't behaving this way
> > too, is that correct?
> That's a good question, I'm not really sure. I'm doing all the vm
> creation/migration/shutdown using libvirt 0.9.0 rc1 and just connecting
> with xen:/// to the local xend.  I thought xl was just a userspace
> replacement for xm and the backend functionality was the same?

xl is a complete standalone toolstack, including the backend

> I don't have a spare server to test the patch with at the moment, but I
> can try this out later this week.

If you are running xm/xend rather than xl then it won't help.

But I'm not sure how one tells with libvrit which you are running, I'd
expect that if xend were running it would be used by default. Jim?


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