Fw: [Xen-devel] [PATCH] blktap2: blktap2 and pygrub (xen-unstable)

[Boris Derzhavets <bderzhavets@xxxxxxxxx>]

Forwarding to you original patch requested.
It works for me.

Boris

--- On Sun, 7/11/10, eXeC001er <execooler@xxxxxxxxx> wrote:

From: eXeC001er <execooler@xxxxxxxxx>
Subject: [Xen-devel] [PATCH] blktap2: blktap2 and pygrub (xen-unstable)
To: "Xen-devel" <xen-devel@xxxxxxxxxxxxxxxxxxx>
Date: Sunday, July 11, 2010, 9:18 AM

1. Bug fix for error: "Error: Device /dev/xvdp (51952, tap2) is already connected."

2. Bug fix for error: "Error: Device 51952 not connected" 

process of booting DomU with 'mounted-blktap2' (VHD for example) and 'pygrub' as bootloader:

1. Connect boot-device to Dom0 as '/dev/xpvd'

2. Pygrub get info for load DomU

3. Disconnect boot-device from Dom0

4. Boot DomU

During step 3 created device disconnecting from Dom0, but xenstore does not scrape away after device disconnected from Dom0 => result: 

    "Error: Device /dev/xvdp (51952, tap2) is already connected."

During step 3 created device disconnecting from Dom0, but 'destroyDevice' method is passed 'tap' always => result:

    "Error: Device 51952 not connected"

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