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authorChristian Krinitsin <mail@krinitsin.com>2025-06-16 16:59:00 +0000
committerChristian Krinitsin <mail@krinitsin.com>2025-06-16 16:59:33 +0000
commit9aba81d8eb048db908c94a3c40c25a5fde0caee6 (patch)
treeb765e7fb5e9a3c2143c68b0414e0055adb70e785 /results/classifier/118/all/1629282
parentb89a938452613061c0f1f23e710281cf5c83cb29 (diff)
downloadqemu-analysis-9aba81d8eb048db908c94a3c40c25a5fde0caee6.tar.gz
qemu-analysis-9aba81d8eb048db908c94a3c40c25a5fde0caee6.zip
add 18th iteration of classifier
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+user-level: 0.951
+graphic: 0.946
+permissions: 0.921
+performance: 0.921
+debug: 0.919
+risc-v: 0.916
+semantic: 0.912
+virtual: 0.910
+register: 0.909
+device: 0.907
+assembly: 0.906
+vnc: 0.896
+architecture: 0.890
+ppc: 0.886
+arm: 0.886
+mistranslation: 0.882
+peripherals: 0.879
+TCG: 0.875
+VMM: 0.870
+i386: 0.865
+KVM: 0.861
+boot: 0.849
+kernel: 0.839
+hypervisor: 0.837
+PID: 0.834
+files: 0.832
+x86: 0.831
+socket: 0.830
+network: 0.798
+
+QEMU (still) hangs on Windows 7 install
+
+I'm trying to install Windows 7 as guest, but the machine still hangs (more precisely, the windows icon keeps flashing, but never goes past this stage).
+
+I think this is a different bug from https://bugs.launchpad.net/qemu/+bug/1581936.
+
+Specifically, its happens when the OVMF BIOS is used, and I can't find any workaround (in the above bug, by changing the display, the installation doesn't hang).
+
+The most minimal commandline that reproduces the issue is (generic format):
+
+$QEMU_BINARY \
+  -drive if=pflash,format=raw,readonly,file=$QEMU_BIOS \
+  -drive if=pflash,format=raw,file=$QEMU_BIOS_TMP \
+  -enable-kvm \
+  -m $QEMU_MEMORY \
+  -display std \
+  -cpu host,kvm=off -smp 4,sockets=1,cores=4 \
+  -cdrom $QEMU_WINDOWS_7_CD \
+;
+
+I'm using `OVMF_15214.fd` as BIOS.
+
+I'll assume "OVMF_15214.fd" is from <http://www.tianocore.org/ovmf/>. It's an ancient build of OVMF (older than two and half years). The binary packaged in that ZIP file isn't even a split one, it's a unified binary that is unsuitable for the command line that you've given above.
+
+Please either grab the most recent OVMF build from your distribution, or a bleeding edge build from <https://www.kraxel.org/repos/> (recommended). Then create a copy of the varstore template, to be used as the VM's own private variable store. Also, fix the "-display std" command line option, as in "-vga std". It will just work then.
+
+Below I'll specify the commands that I just re-tested. Note that I'm also renaming the QEMU_BIOS and QEMU_BIOS_TMP variables (whose names are quite inappropriate) to FIRMWARE_BINARY and VARIABLE_STORE.
+
+    # this binary corresponds to upstream git cc9a366d3b16,
+    # dated "Thu Sep 29 00:34:20 2016 +0100"
+    QEMU_BINARY=/opt/qemu-installed/bin/qemu-system-x86_64
+
+    # these files are from package
+    # "edk2.git-ovmf-x64-0-20160929.b2144.g84bc72f.noarch", installed
+    # from kraxel.org
+    FIRMWARE_BINARY=/usr/share/edk2.git/ovmf-x64/OVMF_CODE-pure-efi.fd
+    VARIABLE_STORE_TEMPLATE=/usr/share/edk2.git/ovmf-x64/OVMF_VARS-pure-efi.fd
+    VARIABLE_STORE=/tmp/guest1-vars.fd
+
+    # Windows 7 installer disk
+    QEMU_WINDOWS_7_CD=en_windows_7_enterprise_n_with_sp1_x64_dvd_u_677704.iso
+
+    # other settings
+    QEMU_MEMORY=2048
+
+    # create empty variable store from pristine template if the varstore doesn't
+    # exist yet, or has been lost for some reason
+    if ! [ -e "$VARIABLE_STORE" ]; then
+      cp -v -- "$VARIABLE_STORE_TEMPLATE" "$VARIABLE_STORE"
+    fi
+
+    $QEMU_BINARY \
+        -drive if=pflash,format=raw,readonly,file="$FIRMWARE_BINARY" \
+        -drive if=pflash,format=raw,file="$VARIABLE_STORE" \
+        -enable-kvm \
+        -m $QEMU_MEMORY \
+        -vga std \
+        -cpu host,kvm=off -smp 4,sockets=1,cores=4 \
+        -cdrom $QEMU_WINDOWS_7_CD
+
+
+
+Thanks! Using the OVMF provided with the Ubuntu 16.04 packages solved the issue.
+