Hi Pino, On 04/02/2015 09:51 AM, Pino Toscano wrote:
Hi Daniel,
On Thursday 02 April 2015 09:34:17 Daniel Henrique Barboza wrote:
On 04/02/2015 05:23 AM, Pino Toscano wrote:
Hi Daniel,
The one that got upstream does not work in ibm-powerkvm due to the rpm_is_avaiable verification in the detection (I've attached the wrong version in bugzilla).
On Wednesday 01 April 2015 16:37:26 Daniel Henrique Barboza wrote: the new version of the patch is somehow confusing. supermin >= 5.1.12 uses librpm to query for rpm dependencies, file listing, provides, etc. If rpm_is_available returns false, that means you built without librpm, and that supermin will not really work. Did you tried running the test suite (`make check`)?
These are the results of make check in the system I've used to test the patch. The system is in an internal isolated network, thus I believe some failures were expected to happen.
PASS: test-basic.sh PASS: test-execstack.sh FAIL: test-build-bash.sh FAIL: test-binaries-exist.sh SKIP: test-harder.sh FAIL: test-build-bash-network.sh FAIL: test-binaries-exist-network.sh SKIP: test-harder-network.sh make[4]: Entering directory `/root/supermin/tests' make[4]: Nothing to be done for `all'. make[4]: Leaving directory `/root/supermin/tests' ============================================================================ Testsuite summary for supermin 5.1.12 ============================================================================ # TOTAL: 8 # PASS: 2 # SKIP: 2 # XFAIL: 0 # FAIL: 4 # XPASS: 0 # ERROR: 0
I've run the non-related network tests to see the failure cause. It is worth saying that supermin upstream code builds and runs fine as far as I can tell, thus I couldn't figure it out much reading these errors:
# ./test-build-bash.sh ./test-build-bash.sh: line 34: 83872 Aborted ../src/supermin -v --prepare $USE_INSTALLED bash -o $d1 # ./test-binaries-exist.sh ./test-binaries-exist.sh: line 29: 83886 Aborted ../src/supermin -v --prepare $USE_INSTALLED bash coreutils -o $d1 These errors tells me exactly what I was talking about: you are building supermin on a rpm-based distribution without librpm support, meaning that supermin is basically non-functional.
The abort() come from src/librpm-c.c, in the else part of the #ifdef HAVE_LIBRPM.
I will be honest and say that I didn't dig further understanding why the rpm_is_available check fails in ibm-powerkvm. The patch I sent is similar to an internal patch we used to add temporary support to the distro on a older version of supermin (the version shipped with RHEL 7.1 GA).
I assumed that rpm_is_available failed because ibm-powerkvm does not have all the rpm features fedora and rhel have, although it uses rpm/yum. Perhaps in a later release of the OS, using a newer version of supermin, we should review this code and enhance it. As I said, I'm pretty sure it's because you are building without librpm, and you should have got in configure's output something like:
checking for LIBRPM... no
Please try the following: - install rpm-devel (being a Fedora-based distro, you should have it) - get supermin 5.1.12 - apply your ibm-powerkvm patch - readd the rpm_is_available check (basically reverting [1]) - run ./configure and check that you have "LIBRPM... yes" - build and run the test suite
If things work, you should get 6 tests passing and 2 skipped (we can make these 2 working as well later).
[1] https://github.com/libguestfs/supermin/commit/b2b0f29efb537161df0286f4a9d5cf...
You are right. I've executed all the steps you mentioned and make check now passes (6 pass 2 skipped) and the original patch now detects ibm-powerkvm as well. Trying to find out how I managed to not do something simple as intalling rpm-devel, the reasoning is that I've run yum-builddep with an older supermin.spec file prior to building supermin upstream code. This spec file I've used didn't include librpm as a build dependency and the project compiled without errors.