Re: [Xen-devel] [PATCH 00/17] blktap2 related bugfix patches

[George Dunlap <George.Dunlap@xxxxxxxxxxxxx>]

On Tue, Oct 21, 2014 at 3:56 AM, Wen Congyang <wency@xxxxxxxxxxxxxx> wrote:

>> Congyang, were you aware that XenServer has a fork of blktap is
>> actually still under active development and maintainership outside of
>> the main Xen tree?
>>
>> git://github.com/xen-org/blktap.git
>>
>> Both CentOS and Fedora are actually using snapshots of the "blktap2"
>> branch in that tree for their Xen RPMs.  (I'm sure CentOS is, I
>> believe Fedora is.)  It's not unlikely that the bugs you're fixing
>> here have already been fixed in the XenServer fork.
>
> How to build upstream xen with this blktap2? Copy the codes to overwrite
> blktap2 in xen.git?

Well what CentOS does at the moment is rm -rf tools/blktap2, then copy
the above repo into tools/blktap2.  It requires a couple of patches to
make things build / work (attached).

CentOS is using a snapshot from 2012 -- I haven't tried a more recent
version; but I *think* Fedora may be using a more recent one.  I think
Bob Ball might know more about the best way to link in this branch.

 -George

Attachment: xen-centos-blktap25-ctl-ipc-restart.patch
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Attachment: xen-centos-disableWerror-blktap25.patch
Description: Binary data

Attachment: xen-centos-libxl-with-blktap25.patch
Description: Binary data

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