On Thu, Jul 25, 2019 at 07:35:13PM +0530, Naresh Kamboju wrote: > Paolo, > > On Thu, 25 Jul 2019 at 19:17, Paolo Bonzini <pbonzini@xxxxxxxxxx> wrote: > > > > On 25/07/19 13:34, Greg Kroah-Hartman wrote: > > > Any chance you can run 'git bisect' to find the offending patch? Or > > > just try reverting a few, you can ignore the ppc ones, so that only > > > leaves you 7 different commits. > > > > > > Does this same test pass in 5.3-rc1? > > Yes. same test pass on 5.3-rc1 > kvm unit test always fetching master branch and at tip > runs the latest test code on all branches > mainline 5.3-rc1 and stable-rc-5.2 branch > > > > > Anders, are you running the same kvm-unit-tests commit that passed for > > 5.2.2? My suspicion is that your previous test didn't have this commit > > No. > I see two extra test code commits for 5.2.3 > Re-tested 5.2.2 with tip of kvm unit tests sources and vmx test FAILED [1]. > > Greg, > This investigation confirms it is a new test code failure on stable-rc 5.2.3 No, it only confirms that kvm-unit-tests/master fails on 5.2.*. To confirm a new failure in 5.2.3 you would need to show a test that passes on 5.2.2 and fails on 5.2.3. As Paolo suspected, kvm-unit-tests/master fails on 5.2.* and passes if commit 95d6d2c ("nVMX: Test Host Segment Registers and Descriptor Tables on vmentry of nested guests") is reverted (from kvm-unit-tests). The failures are quite clearly in the new test(s). PASS: HOST_SEL_CS 8: vmlaunch succeeds FAIL: HOST_SEL_CS 9: vmlaunch fails FAIL: HOST_SEL_CS c: vmlaunch fails PASS: HOST_SEL_SS 10: vmlaunch succeeds FAIL: HOST_SEL_SS 11: vmlaunch fails FAIL: HOST_SEL_SS 14: vmlaunch fails PASS: HOST_SEL_DS 10: vmlaunch succeeds FAIL: HOST_SEL_DS 11: vmlaunch fails FAIL: HOST_SEL_DS 14: vmlaunch fails PASS: HOST_SEL_ES 10: vmlaunch succeeds FAIL: HOST_SEL_ES 11: vmlaunch fails FAIL: HOST_SEL_ES 14: vmlaunch fails PASS: HOST_SEL_FS 10: vmlaunch succeeds FAIL: HOST_SEL_FS 11: vmlaunch fails FAIL: HOST_SEL_FS 14: vmlaunch fails PASS: HOST_SEL_GS 10: vmlaunch succeeds FAIL: HOST_SEL_GS 11: vmlaunch fails FAIL: HOST_SEL_GS 14: vmlaunch fails PASS: HOST_SEL_TR 80: vmlaunch succeeds FAIL: HOST_SEL_TR 81: vmlaunch fails KVM: entry failed, hardware error 0x80000021