Public bug reported: Hi,
Corporate environment, Windows XenU platforms, using QEMU HVM (qemu- system-x86) on multiple Ubuntu Xen0 platforms. Established stable production environment (for > 1-5 years), Ubuntu and Windows nodes getting latest patches etc. Dell R6XX series server hardware. After updates from mainline: 1:2.5+dfsg-5ubuntu10 to 1:2.5+dfsg- 5ubuntu10.22 a reboot of XenU VMs very slow and repeated BlueScreening. Windows Server 2012, does come up after 4+ minutes booting. Windows Server 2008R8, Windows 7 Pro, Windows 10 Pro VMs fail to boot with blue screen "framebuf" STOP. (PNG available). Boot to safe mode (very slow ~ 4mins to login screen) and remove video drivers, reboot succeeds, windows drivers auto updated, reboot fails. Testing completed on Windows Server 2008R8 images including migration of VM Disk devices to other Dell rack servers: o Xenial Xen0 server - Same issues o Trusty Xen0 server - Same issues o Precise Xen0 server - Fast boot / no issues On Xenial systems, downgrading qemu-system-x86 to version 1:2.5+dfsg- 5ubuntu10 reverts to previous performance / stability (~25 secs to loginscreen) = all good. Tested PPA versions of qemu-system-x86 with local dpkg installs, version ubuntu10.21 works fine, ubuntu10.22 fails. Proposed ubuntu10.23 also fails. QEMU Command line used (unchanged between good and back observations): /usr/bin/qemu-system-i386 -xen-domid 9 -chardev socket,id=libxl-cmd,path=/var/run/xen/qmp-libxl-9,server,nowait -no-shutdown -mon chardev=libxl-cmd,mode=control -chardev socket,id=libxenstat-cmd,path=/var/run/xen/qmp-libxenstat-9,server,nowait -mon chardev=libxenstat-cmd,mode=control -nodefaults -name HOSTNAME -vnc <IP ADDRESS>:<SCREEN>,to=99 -display none -serial pty -device cirrus-vga,vgamem_mb=8 -boot order=c -usb -usbdevice tablet -smp 2,maxcpus=2 -device rtl8139,id=nic0,netdev=net0,mac=XX:XX:XX:XX:XX:XX -netdev type=tap,id=net0,ifname=vif9.0-emu,script=no,downscript=no -machine xenfv -m 6992 -drive file=/dev/VG-xen/HOSTNAME-disk,if=ide,index=0,media=disk,format=raw,cache=writeback Xen CFG: name = '<HOSTNAME>' builder = 'hvm' memory = 7000 vcpus=2 shadow_memory = 8 acpi=1 vif = ['type=ioemu, bridge=xenbr0'] disk = [ 'phy:/dev/VG-xen/HOSTNMAE-disk,hda,w'] boot='c' usbdevice='tablet' vnc=1 vncdisplay=<DISPLAY> vnclisten='<IP ADDRESS>' vncconsole=1 serial='pty' on_poweroff = 'destroy' on_reboot = 'restart' on_crash = 'restart' Xen GPL gplpv_Vista2008x64_0.11.0.373.msi drivers being used ( https://wiki.univention.de/index.php/Installing-signed-GPLPV-drivers ) ** Affects: qemu (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1752761 Title: Regression in vga handling ubuntu10.21 to ubuntu10.22 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1752761/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
