Re: [Users] about live snapshot and qemu-kvm

On 01/01/2014 06:24 AM, Gianluca Cecchi wrote: > On Wed, Jan 1, 2014 at 4:38 AM, R P Herrold wrote: > >> >> Out of curiousity, _what_ build environment 'flags' do you >> all, participating in this thread, refer to? -- the thread >> does not enumerate them explicitly, and one cannot expect to >> hit by 'indirect fire', a target not exposed >> >> With best regards, this New Year's eve > > I'm far from being a programmer, but as I went to compare build > environments, between > qemu-kvm-rhev-0.12.1.2-2.415.el6_5.3.src.rpm > and > qemu-kvm-0.12.1.2-2.415.el6_5.3.src.rpm > in related spec file I see > [g.cecchi@tekkaman SPECS]$ diff qemu-kvm.spec.upstream qemu-kvm.spec.rhev > 3c3 > < %define rhev 0 > --- >> %define rhev 1 > 12928a12929 >>>>>>>>> rhel-6.5 > > and apart other probably not trivial implications, such as guest agent > part, I see that the "configure" command takes one extra argument in > base RH EL 6.5, that is > > --disable-rhev-features > > The only patch file containing this keyword is > > kvm-Block-streaming-disable-for-RHEL.patch > > and inside it there are these lines that impacts configure options and > related built qemu-kvm: > > --- a/configure > +++ b/configure > @@ -286,6 +286,7 @@ spice="" > smartcard="" > smartcard_nss="" > live_snapshots="yes" > +block_stream="yes" > usb_redir="" > > # OS specific > @@ -686,10 +687,22 @@ for opt do > ;; > --enable-live-snapshots) live_snapshots="yes" > ;; > + --disable-block-stream) block_stream="no" > + ;; > + --enable-block-stream) block_stream="yes" > + ;; > --disable-usb-redir) usb_redir="no" > ;; > --enable-usb-redir) usb_redir="yes" > ;; > + --disable-rhev-features) > + live_snapshots="no"; > + block_stream="no"; > + ;; > + --enable-rhev-features) > + live_snapshots="yes"; > + block_stream="yes"; > + ;; > *) echo "ERROR: unknown option $opt"; show_help="yes" > ;; > esac > @@ -863,8 +876,12 @@ echo " --disable-smartcard-nss disable > smartcard nss support" > echo " --enable-smartcard-nss enable smartcard nss support" > echo " --disable-live-snapshots disable live block device snapshot support" > echo " --enable-live-snapshots enable live block device snapshot support" > +echo " --disable-block-stream disable block streaming support" > +echo " --enable-block-stream enable block streaming support" > echo " --disable-usb-redir disable usb network redirection support" > echo " --enable-usb-redir enable usb network redirection support" > +echo " --disable-rhev-features disable RHEV-only features" > +echo " --enable-rhev-features enable RHEV-only features" > echo "" > echo "NOTE: The object files are built at the place where configure > is launched" > exit 1 > @@ -2271,6 +2288,7 @@ echo "Trace backend $trace_backend" > echo "spice support $spice" > echo "nss used $smartcard_nss" > echo "Live snapshots $live_snapshots" > +echo "Block streaming $block_stream" > echo "xfsctl support $xfs" > echo "usb net redir $usb_redir" > > @@ -2526,6 +2544,10 @@ if test "$live_snapshots" = "yes" ; then > echo "CONFIG_LIVE_SNAPSHOTS=y" >> $config_host_mak > fi > > +if test "$block_stream" = "yes" ; then > + echo "CONFIG_BLOCK_STREAM=y" >> $config_host_mak > +fi > + > if test "$usb_redir" = "yes" ; then > echo "CONFIG_USB_REDIR=y" >> $config_host_mak > fi > > I don't think the rhev argument has instead implications in upstream > source qemu-kvm-0.12.1.2.tar.gz > So I think that if you want to dig more and if you have more > competences, you have to see the full spec file and the full patch > above. > > Files downloaded here: > > upstream > http://ftp.redhat.com/redhat/linux/enterprise/6Server/en/os/SRPMS/qemu-kv... > > rhev > http://ftp.redhat.com/redhat/linux/enterprise/6Server/en/RHEV/SRPMS/qemu-... > Just for the record, we have setup a jenkins job to rebuild qemu-kvm for el6 until we get it officially from centos: http://jenkins.ovirt.org/view/Packaging/job/qemu-kvm-rhev_create_rpms_el6/ -- Cheers Douglas _______________________________________________ Users mailing list Users(a)ovirt.org http://lists.ovirt.org/mailman/listinfo/users