I installed the xen development packages on my non-Xen F16 machine
in order to compile-test xen code and ensure we don't break things
on that front, but being a non-xen machine, /usr/sbin/xend is
obviously not running. Unfortunately, xen-4.1.2-1.fc16 has a bug
where merely trying to probe xend status on a non-xen kernel causes
xend to issue an ABRT crash report:
https://bugzilla.redhat.com/show_bug.cgi?id=728696
Even though libvirt (correctly) skips the test, the xend crash report
is unnecessary noise. Fix this by first filtering out non-xen
kernels even before attempting to probe xend. The test still runs
and passes on a RHEL 5 xen kernel after this patch.
* tests/reconnect.c (mymain): Skip xend probe on non-xen kernel.
* tests/statstest.c (mymain): Likewise.
Currently, the xen statstest and reconnect tests are only compiled
if xend is running. Compile them unconditionally if xen headers
are present, but skip the tests at runtime if xend is not running.
This is in response to Eric's suggestion here
https://www.redhat.com/archives/libvir-list/2011-July/msg00367.html
A few of the tests were missing basic sanity checks, while most
of them were doing copy-and-paste initialization (in fact, some
of them pasted the argc > 1 check more than once!). It's much
nicer to do things in one common place, and minimizes the size of
the next patch that fixes getcwd usage.
* tests/testutils.h (EXIT_AM_HARDFAIL): New define.
(progname, abs_srcdir): Define for all tests.
(VIRT_TEST_MAIN): Change callback signature.
* tests/testutils.c (virtTestMain): Do more common init.
* tests/commandtest.c (mymain): Simplify.
* tests/cputest.c (mymain): Likewise.
* tests/esxutilstest.c (mymain): Likewise.
* tests/eventtest.c (mymain): Likewise.
* tests/hashtest.c (mymain): Likewise.
* tests/networkxml2xmltest.c (mymain): Likewise.
* tests/nodedevxml2xmltest.c (myname): Likewise.
* tests/nodeinfotest.c (mymain): Likewise.
* tests/nwfilterxml2xmltest.c (mymain): Likewise.
* tests/qemuargv2xmltest.c (mymain): Likewise.
* tests/qemuhelptest.c (mymain): Likewise.
* tests/qemuxml2argvtest.c (mymain): Likewise.
* tests/qemuxml2xmltest.c (mymain): Likewise.
* tests/qparamtest.c (mymain): Likewise.
* tests/sexpr2xmltest.c (mymain): Likewise.
* tests/sockettest.c (mymain): Likewise.
* tests/statstest.c (mymain): Likewise.
* tests/storagepoolxml2xmltest.c (mymain): Likewise.
* tests/storagevolxml2xmltest.c (mymain): Likewise.
* tests/virbuftest.c (mymain): Likewise.
* tests/virshtest.c (mymain): Likewise.
* tests/vmx2xmltest.c (mymain): Likewise.
* tests/xencapstest.c (mymain): Likewise.
* tests/xmconfigtest.c (mymain): Likewise.
* tests/xml2sexprtest.c (mymain): Likewise.
* tests/xml2vmxtest.c (mymain): Likewise.
The statstest is xen specific. Instead of filling the code with
a huge number of #ifdef WITH_XEN, just make its entire compilation
conditional in the Makefile.am. Also ensure it links to the Xen
driver so that it builds when driver modules are enabled
* tests/Makefile.am: Make statstest xen conditional. Link to
xen driver
* tests/Makefile.am: Remove all conditionals
Only print out '.' for each test case, full test output can be
re-enabled with VIR_TEST_VERBOSE=1, or VIR_TEST_DEBUG=XXXX
Sample output now looks like
TEST: statstest
........................................ 40
................................... 75 OK
PASS: statstest
TEST: qparamtest
................................ 32 OK
PASS: qparamtest
TEST:
............ 12 OK
Provide a simple interface for other tests to lookup the testDebug variable.
Also remove a redundant error message in interface tests.
If anyone feels inclined to change this env variable to match the existing
LIBVIRT_* format, it should now be easier to do so.
part, this doesn't really concern libvirt, since for things like attach and
detach we just pass it through and let xend worry about whether it is supported
or not. The one place this breaks down is in the stats collecting code, where
we need to figure out the device number so we can go digging in /sys for the
statistics.
To remedy this, I've re-written xenLinuxDomainDeviceID() to use regular
expressions to figure out the device number from the name. The major advantage
is that now xenLinuxDomainDeviceID() looks fairly identical to
tools/python/xen/util/blkif.py (in the Xen sources), so that adding additional
devices in the future should be much easier. It also reduces the size of the
code, and, in my opinion, the code complexity.
With this patch in place, I was able to get block statistics both on older style
devices (/dev/xvda) and on the new, expanded devices (/dev/xvdaa).
Signed-off-by: Chris Lalancette <clalance@redhat.com>
