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Re: ioemu: Re-enable guest boot with blktap devices ([Xen-devel] Weekly

To: Yosuke Iwamatsu <y-iwamatsu@xxxxxxxxxxxxx>, <haicheng.li@xxxxxxxxx>, Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>
Subject: Re: ioemu: Re-enable guest boot with blktap devices ([Xen-devel] Weekly VMX status report. Xen: #18577 & Xen0: #696)
From: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
Date: Tue, 14 Oct 2008 08:13:21 +0100
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On 14/10/08 05:04, "Yosuke Iwamatsu" <y-iwamatsu@xxxxxxxxxxxxx> wrote:

> Bug #1367 looks caused by the xenstore path checking code recently added
> to ioemu-remote. I saw the same problem and found that the code didn't
> consider the case blktap devices were attached to the guest. The patch
> below should avoid the problem.

Alternatively could just check a shorter path prefix (just /local/domain/0/
would be sufficient I think). Full path checking is obviously inherently a
bit more fragile.

 -- Keir



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