1 files changed, 50 insertions, 0 deletions
diff --git a/results/classifier/118/graphic/1008 b/results/classifier/118/graphic/1008
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+++ b/results/classifier/118/graphic/1008
@@ -0,0 +1,50 @@
+graphic: 0.985
+x86: 0.963
+i386: 0.962
+architecture: 0.941
+kernel: 0.921
+hypervisor: 0.876
+virtual: 0.869
+device: 0.818
+semantic: 0.798
+debug: 0.796
+PID: 0.749
+performance: 0.747
+KVM: 0.715
+VMM: 0.690
+vnc: 0.683
+risc-v: 0.627
+ppc: 0.561
+register: 0.547
+permissions: 0.513
+TCG: 0.493
+files: 0.483
+user-level: 0.478
+socket: 0.464
+boot: 0.461
+mistranslation: 0.406
+network: 0.397
+arm: 0.325
+assembly: 0.283
+peripherals: 0.259
+
+nested virtualisation with old host kernel, qemu 7.0.0 broken
+Description of problem:
+```
+$ qemu-system-x86_64 -enable-kvm -nographic
+qemu-system-x86_64: error: failed to set MSR 0xc0000104 to 0x100000000
+qemu-system-x86_64: ../target/i386/kvm/kvm.c:2996: kvm_buf_set_msrs: Assertion `ret == cpu->kvm_msr_buf->nmsrs' failed.
+Aborted (core dumped)
+
+$
+```
+Steps to reproduce:
+1. (hardware) Host 1 running kernel 5.10 with nested kvm enabled
+2. (virtual) Host 2, with qemu 7.0.0 installed
+3. In the inner/virtual host, run: `qemu-system-x86 -enable-kvm -nographic`
+Additional information:
+It is fixed by using either a more up-to-date kernel version on the hardware/outer host (5.17.x for example), or by reverting to qemu 6.2.0 in the virtual/inner host.
+
+I have also reproduced this with latest qemu master, commit 731340813fdb4cb8339edb8630e3f923b7d987ec.
+
+**Reverting commit 3e4546d5bd38a1e98d4bd2de48631abf0398a3a2 also fixes the issue.**