[Xen-devel] HEADS UP: Imported Xen 4.7: no blkback
wei.liu2 at citrix.com
Thu Jun 9 09:08:32 UTC 2016
On Thu, Jun 09, 2016 at 10:03:43AM +0200, Roger Pau Monné wrote:
> On Thu, Jun 09, 2016 at 12:16:59AM +0000, Marcin Cieslak wrote:
> > On Fri, 3 Jun 2016, Roger Pau Monné wrote:
> > > One of the more relevant changes in 4.7 regarding FreeBSD is the support for
> > > block hotplug scripts. This means that we now have the option to use
> > > backends different than simple block or regular files, provided that someone
> > > writes the proper hotplug scripts to attach them (I've heard there are some
> > > iSCSI hotplug scripts around). This however requires changes in blkback, so
> > > if you plan to use the Xen 4.7 port, please make sure that you are running a
> > > kernel that contains revision r301269 (or any later version). The same also
> > I am running it with r301685 and the HVM guests have some trouble with
> > block devices.
> > SeaBIOS does not find /dev/zvol/zroot/freebsd1,raw,xvda,w to boot FreeBSD
> > from, after chaging to "hda" I get up to the kernel mountroot prompt
> > (Xen block devices seem to be detected in dmesg).
> Yes, this is intentional, see:
Note that I reverted that change yesterday. 4.7 will behave as before.
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