As discussed in the thread at
http://lists.xen.org/archives/html/xen-devel/2015-09/msg01067.html some
older versions of Linux lack drivers for hardware in some of our test
hosts, meaning in particular that the linux-3.4 branch is now stuck trying
to run all of its jobs on hosts which linux-3.4.y cannot possibly work on
and for which a backported driver is thought unlikely right now.
Fix this by introducing support to the resource allocator for filtering
candidates based on resource properties, which will be used specifically to
filter hosts by their LinuxKernelMin property.
Before applying this the following new host properties should be added:
./mg-hosts setprops chardonnay\* -- LinuxKernelMin 3.8
./mg-hosts setprops huxelrebe\* -- LinuxKernelMin 3.5
(strictly speaking chardonnay is actually fixed by 3.7-rc1).
The first patch was just for debugging, via the script attached to v1 and
some spurious host properties added in Cambridge. This could be dropped...
The full diff of ./standalone-generate-dump-flight-runvars is huge, a
representative hunk after sorting both files is:
@@ -501,7 +501,7 @@
linux-3.0 build-i386-xsm
tree_qemuu
git://xenbits.xen.org/staging/qemu-upstream-unstable.git
linux-3.0 build-i386-xsm
tree_seabios
linux-3.0 build-i386-xsm
tree_xen git://xenbits.xen.org/xen.git
-linux-3.0 test-amd64-amd64-amd64-pvgrub
all_hostflags
arch-amd64,arch-xen-amd64,suite-jessie,purpose-test
+linux-3.0 test-amd64-amd64-amd64-pvgrub
all_hostflags
arch-amd64,arch-xen-amd64,suite-jessie,purpose-test,PropMinVer:LinuxKernelMin:3.0
linux-3.0 test-amd64-amd64-amd64-pvgrub
arch amd64
linux-3.0 test-amd64-amd64-amd64-pvgrub
buildjob build-amd64
linux-3.0 test-amd64-amd64-amd64-pvgrub
debian_arch amd64
This only occurs for linux-X.Y and not for other branches (including not
for non-numeric linux-FOO):
$ diff -u before-min-linux after-min-linux | grep ^[+-][^+-]| cut -f1 -d\ |
sort | uniq
-linux-3.0
+linux-3.0
-linux-3.10
+linux-3.10
-linux-3.14
+linux-3.14
-linux-3.16
+linux-3.16
-linux-3.18
+linux-3.18
-linux-3.4
+linux-3.4
-linux-4.1
+linux-4.1
Ian.
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