Finally, i got it. https://launchpadlibrarian.net/71622307/buildlog_ubuntu-natty-amd64 .qemu-kvm_0.14.0%2Bspicev35-0ubuntu1_BUILDING.txt.gz
Log is clean https://launchpadlibrarian.net/71622306/buildlog_ubuntu-natty-i386.qemu- kvm_0.14.0%2Bspicev35-0ubuntu1_BUILDING.txt.gz qemu-common_0.14.0+spicev35-0ubuntu1_all.deb has nothing to do with "-Werror" chroot-autobuild/build/buildd/qemu-common_0.14.0+spicev35-0ubuntu1_all.deb: drwxr-xr-x root/root 0 2011-05-13 09:45 ./ drwxr-xr-x root/root 0 2011-05-13 09:45 ./usr/ drwxr-xr-x root/root 0 2011-05-13 09:45 ./usr/share/ drwxr-xr-x root/root 0 2011-05-13 09:45 ./usr/share/apport/ drwxr-xr-x root/root 0 2011-05-13 09:45 ./usr/share/apport/package-hooks/ -rw-r--r-- root/root 350 2011-05-13 09:15 ./usr/share/apport/package-hooks/source_qemu-kvm.py drwxr-xr-x root/root 0 2011-05-13 09:45 ./usr/share/qemu/ -rwxr-xr-x root/root 1024 2011-05-13 09:44 ./usr/share/qemu/multiboot.bin drwxr-xr-x root/root 0 2011-05-13 09:14 ./usr/share/qemu/keymaps/ -rw-r--r-- root/root 2587 2011-05-13 09:14 ./usr/share/qemu/keymaps/fr -rw-r--r-- root/root 2576 2011-05-13 09:14 ./usr/share/qemu/keymaps/no -rw-r--r-- root/root 1354 2011-05-13 09:14 ./usr/share/qemu/keymaps/pt-br -rw-r--r-- root/root 2699 2011-05-13 09:14 ./usr/share/qemu/keymaps/hr -rw-r--r-- root/root 934 2011-05-13 09:14 ./usr/share/qemu/keymaps/fr-ca -rw-r--r-- root/root 11421 2011-05-13 09:14 ./usr/share/qemu/keymaps/bepo -rw-r--r-- root/root 1866 2011-05-13 09:14 ./usr/share/qemu/keymaps/hu -rw-r--r-- root/root 2672 2011-05-13 09:14 ./usr/share/qemu/keymaps/pl -rw-r--r-- root/root 3064 2011-05-13 09:14 ./usr/share/qemu/keymaps/is -rw-r--r-- root/root 1105 2011-05-13 09:14 ./usr/share/qemu/keymaps/nl -rw-r--r-- root/root 3123 2011-05-13 09:14 ./usr/share/qemu/keymaps/th -rw-r--r-- root/root 609 2011-05-13 09:14 ./usr/share/qemu/keymaps/en-us -rw-r--r-- root/root 2735 2011-05-13 09:14 ./usr/share/qemu/keymaps/fr-be -rw-r--r-- root/root 2649 2011-05-13 09:14 ./usr/share/qemu/keymaps/tr -rw-r--r-- root/root 1096 2011-05-13 09:14 ./usr/share/qemu/keymaps/lt -rw-r--r-- root/root 906 2011-05-13 09:14 ./usr/share/qemu/keymaps/fo -rw-r--r-- root/root 293 2011-05-13 09:14 ./usr/share/qemu/keymaps/modifiers -rw-r--r-- root/root 2450 2011-05-13 09:14 ./usr/share/qemu/keymaps/pt -rw-r--r-- root/root 2462 2011-05-13 09:14 ./usr/share/qemu/keymaps/it -rw-r--r-- root/root 2366 2011-05-13 09:14 ./usr/share/qemu/keymaps/mk -rw-r--r-- root/root 2293 2011-05-13 09:14 ./usr/share/qemu/keymaps/sl -rw-r--r-- root/root 1115 2011-05-13 09:14 ./usr/share/qemu/keymaps/et -rw-r--r-- root/root 43 2011-05-13 09:14 ./usr/share/qemu/keymaps/nl-be -rw-r--r-- root/root 2467 2011-05-13 09:14 ./usr/share/qemu/keymaps/de -rw-r--r-- root/root 1008 2011-05-13 09:14 ./usr/share/qemu/keymaps/sv -rw-r--r-- root/root 2581 2011-05-13 09:14 ./usr/share/qemu/keymaps/en-gb -rw-r--r-- root/root 2239 2011-05-13 09:14 ./usr/share/qemu/keymaps/ar -rw-r--r-- root/root 2576 2011-05-13 09:14 ./usr/share/qemu/keymaps/da -rw-r--r-- root/root 2236 2011-05-13 09:14 ./usr/share/qemu/keymaps/es -rw-r--r-- root/root 2685 2011-05-13 09:14 ./usr/share/qemu/keymaps/fi -rw-r--r-- root/root 2554 2011-05-13 09:14 ./usr/share/qemu/keymaps/ru -rw-r--r-- root/root 2140 2011-05-13 09:14 ./usr/share/qemu/keymaps/ja -rw-r--r-- root/root 2077 2011-05-13 09:14 ./usr/share/qemu/keymaps/common -rw-r--r-- root/root 2840 2011-05-13 09:14 ./usr/share/qemu/keymaps/lv -rw-r--r-- root/root 2471 2011-05-13 09:14 ./usr/share/qemu/keymaps/fr-ch -rw-r--r-- root/root 2533 2011-05-13 09:14 ./usr/share/qemu/keymaps/de-ch -rwxr-xr-x root/root 1024 2011-05-13 09:45 ./usr/share/qemu/linuxboot.bin drwxr-xr-x root/root 0 2011-05-13 09:45 ./usr/share/doc/ drwxr-xr-x root/root 0 2011-05-13 09:45 ./usr/share/doc/qemu-common/ -rw-r--r-- root/root 15720 2011-05-13 09:20 ./usr/share/doc/qemu-common/changelog.Debian.gz -rw-r--r-- root/root 4079 2011-05-13 09:15 ./usr/share/doc/qemu-common/copyright drwxr-xr-x root/root 0 2011-05-13 09:45 ./usr/bin/ -rwxr-xr-x root/root 270 2011-05-13 09:15 ./usr/bin/qemu-ifdown -rwxr-xr-x root/root 138 2011-05-13 09:15 ./usr/bin/qemu-ifup drwxr-xr-x root/root 0 2011-05-13 09:45 ./etc/ lrwxrwxrwx root/root 0 2011-05-13 09:45 ./usr/share/qemu/vgabios.bin -> ../vgabios/vgabios.bin lrwxrwxrwx root/root 0 2011-05-13 09:45 ./usr/share/qemu/vgabios-qxl.bin -> ../vgabios/vgabios.qxl.bin lrwxrwxrwx root/root 0 2011-05-13 09:45 ./usr/share/qemu/vgabios-vmware.bin -> ../vgabios/vgabios.vmware.bin lrwxrwxrwx root/root 0 2011-05-13 09:45 ./usr/share/qemu/vgabios-stdvga.bin -> ../vgabios/vgabios.stdvga.bin lrwxrwxrwx root/root 0 2011-05-13 09:45 ./usr/share/qemu/vgabios-cirrus.bin -> ../vgabios/vgabios.cirrus.bin lrwxrwxrwx root/root 0 2011-05-13 09:45 ./usr/share/qemu/bios.bin -> ../seabios/bios.bin lrwxrwxrwx root/root 0 2011-05-13 09:45 ./etc/qemu-ifdown -> /usr/bin/qemu-ifdown lrwxrwxrwx root/root 0 2011-05-13 09:45 ./etc/qemu-ifup -> /usr/bin/qemu-ifup -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/723871 Title: qemu-kvm-0.14.0 Aborts with -vga qxl Status in QEMU: Confirmed Status in “libvirt” package in Ubuntu: Triaged Status in “qemu-kvm” package in Ubuntu: Fix Released Bug description: Host CPU is Core i7 Q820. KVM is from 2.6.35-gentoo-r5 kernel (x86_64). Host has spice-0.7.2 and spice-protocol-0.7.0. Guest is Windows XP SP3 with qxl driver 0.6.1, virtio-serial 1.1.6 and vdagent 0.6.3. qemu-kvm is started like so: qemu-system-x86_64 -cpu host -enable-kvm -pidfile /home/rick/qemu/hds/wxp.pid -drive file=/home/rick/qemu/hds/wxp.raw,if=virtio,media=disk,aio=native,snapshot=on -m 768 -name WinXP -net nic,model=virtio -net user -localtime -usb -vga qxl -device virtio-serial -chardev spicevmc,name=vdagent,id=vdagent -device virtserialport,chardev=vdagent,name=com.redhat.spice.0 -spice port=1234,disable-ticketing -monitor stdio and crashes with: qemu-system-x86_64: /home/rick/qemu/src/qemu-kvm-0.14.0/qemu-kvm.c:1724: kvm_mutex_unlock: Assertion `!cpu_single_env' failed. Aborted If I use -no-kvm, it works fine. If I use -vga std, it works fine. -enable-kvm and -vga qxl crashes.