Package: qemu-system-x86 Version: 1:3.1+dfsg-8~deb10u1 Severity: normal Dear Maintainer,
I have an old Win XP Pro SP3 VM that used to work with kvm in stretch and earlier. Since the upgrade to buster the VM no longer boots with "qemu-system-x86_64 --enable-kvm ...". Trying "safe mode" on the Windows rescue screen shows that the VM boots until to the line multi(0)disk(0)rdisk(0)partition(1)\Windows\System32\Drivers\Mup.sys and then reboots into the Windows rescue screen. It still boots successfully when qemu is called without --enable-kvm. Assuming that the properties of the virtual CPU had changed I tried -cpu host|max|kvm64|qemu64|athlon|phenom but it made no difference. Assuming that the image was damaged I tried different images from backups of the last 5 years. They all used to work and no longer do. I also tried to boot the VM from a Windows XP pro CD in order to repair the Windows installation if necessary. But the CD does not boot either (reboots after "Setup is starting Windows"). Note that only XP is affected. All other VMs I use work fine with --enable-kvm. My CPU: $ lscpu Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian Address sizes: 48 bits physical, 48 bits virtual CPU(s): 3 On-line CPU(s) list: 0-2 Thread(s) per core: 1 Core(s) per socket: 3 Socket(s): 1 NUMA node(s): 1 Vendor ID: AuthenticAMD CPU family: 16 Model: 4 Model name: AMD Phenom(tm) II X3 720 Processor Stepping: 2 CPU MHz: 800.000 CPU max MHz: 2800,0000 CPU min MHz: 800,0000 BogoMIPS: 5587.84 Virtualization: AMD-V L1d cache: 64K L1i cache: 64K L2 cache: 512K L3 cache: 6144K NUMA node0 CPU(s): 0-2 Flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm 3dnowext 3dnow constant_tsc rep_good nopl nonstop_tsc cpuid extd_apicid pni monitor cx16 popcnt lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs skinit wdt hw_pstate vmmcall npt lbrv svm_lock nrip_save $ lsmod | grep kvm kvm_amd 106496 0 ccp 98304 1 kvm_amd kvm 724992 1 kvm_amd irqbypass 16384 1 kvm -- System Information: Debian Release: 10.0 APT prefers stable APT policy: (500, 'stable') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 4.19.0-5-amd64 (SMP w/3 CPU cores) Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8), LANGUAGE=de_DE:de (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages qemu-system-x86 depends on: ii ipxe-qemu 1.0.0+git-20190125.36a4c85-1 ii libaio1 0.3.112-3 ii libasound2 1.1.8-1 ii libbluetooth3 5.50-1 ii libbrlapi0.6 5.6-10 ii libc6 2.28-10 ii libcacard0 1:2.6.1-1 ii libcapstone3 4.0.1+really+3.0.5-1 ii libepoxy0 1.5.3-0.1 ii libfdt1 1.4.7-3 ii libgbm1 18.3.6-2 ii libgcc1 1:8.3.0-6 ii libglib2.0-0 2.58.3-2 ii libgnutls30 3.6.7-4 ii libibverbs1 22.1-1 ii libjpeg62-turbo 1:1.5.2-2+b1 ii libncursesw6 6.1+20181013-2 ii libnettle6 3.4.1-1 ii libnuma1 2.0.12-1 ii libpixman-1-0 0.36.0-1 ii libpng16-16 1.6.36-6 ii librdmacm1 22.1-1 ii libsasl2-2 2.1.27+dfsg-1 ii libseccomp2 2.3.3-4 ii libspice-server1 0.14.0-1.3 ii libtinfo6 6.1+20181013-2 ii libusb-1.0-0 2:1.0.22-2 ii libusbredirparser1 0.8.0-1 ii libvdeplug2 2.3.2+r586-2.2 ii libvirglrenderer0 0.7.0-2 ii libxendevicemodel1 4.11.1+92-g6c33308a8d-2 ii libxenevtchn1 4.11.1+92-g6c33308a8d-2 ii libxenforeignmemory1 4.11.1+92-g6c33308a8d-2 ii libxengnttab1 4.11.1+92-g6c33308a8d-2 ii libxenmisc4.11 4.11.1+92-g6c33308a8d-2 ii libxenstore3.0 4.11.1+92-g6c33308a8d-2 ii libxentoolcore1 4.11.1+92-g6c33308a8d-2 ii qemu-system-common 1:3.1+dfsg-8~deb10u1 ii qemu-system-data 1:3.1+dfsg-8~deb10u1 ii seabios 1.12.0-1 ii zlib1g 1:1.2.11.dfsg-1 Versions of packages qemu-system-x86 recommends: pn ovmf <none> ii qemu-system-gui 1:3.1+dfsg-8~deb10u1 ii qemu-utils 1:3.1+dfsg-8~deb10u1 Versions of packages qemu-system-x86 suggests: pn qemu-block-extra <none> ii samba 2:4.9.5+dfsg-5 ii sgabios 0.0~svn8-4 ii vde2 2.3.2+r586-2.2 -- no debconf information
