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[Xen-devel] [PATCH RFC OSSTEST v1 12/12] make-flight: Use older Debian for host and guest OS with older Xen

Sometimes when updating osstest to use a newer version of Debian as a
baseline we find that the new compiler or other tools pickup latent
errors in older code bases for which the fixes are invasive or
otherwise inappropriate for a stable branch.

This is the case with Debian Jessie and Xen 4.3 and earlier, so
restrict those branches to keep using Wheezy.

This only applies to xen-X.Y-testing branches and
qemu-upstream-X.Y-testing branches since other branch all use
xen-unstable as their Xen.

Signed-off-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
Runvar differences are of the form:
-xen-4.3-testing            build-amd64                               
all_host_diversion           2015-09-18
-xen-4.3-testing            build-amd64                               
all_host_suite               jessie
+xen-4.3-testing            build-amd64                               
all_host_diversion           2015-09-07
+xen-4.3-testing            build-amd64                               
all_host_suite               wheezy
 xen-4.3-testing            build-amd64                               arch      
-xen-4.3-testing            build-amd64                               
+xen-4.3-testing            build-amd64                               
 make-flight | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/make-flight b/make-flight
index 3b3950a..87070f2 100755
--- a/make-flight
+++ b/make-flight
@@ -40,6 +40,18 @@ xen-unstable-smoke)
+# Older versions of Xen may not build with the current default.  Note
+# that branches older than 4.3 might need something even older than
+# Wheezy, but we have not done the archaeology to figure out what they
+# require.
+case "$xenbranch" in
+  xen-3.*-testing) suite="wheezy"; guestsuite="wheezy";;
+  xen-4.0-testing) suite="wheezy"; guestsuite="wheezy";;
+  xen-4.1-testing) suite="wheezy"; guestsuite="wheezy";;
+  xen-4.2-testing) suite="wheezy"; guestsuite="wheezy";;
+  xen-4.3-testing) suite="wheezy"; guestsuite="wheezy";;
 job_create_build_filter_callback () {
   local job=$1; shift
   case "$branch" in

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