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[Qemu-devel] [Bug 1635339] Re: qxl_pre_save assertion failure on vm "sav


From: DocMAX
Subject: [Qemu-devel] [Bug 1635339] Re: qxl_pre_save assertion failure on vm "save"
Date: Thu, 20 Oct 2016 23:22:17 -0000

QXL driver version is 17.54.59.923

Commandline (git compiled today) is:

/usr/sbin/qemu-system-x86_64 -name guest=dc,debug-threads=on -S -object
secret,id=masterKey0,format=raw,file=/var/lib/libvirt/qemu/domain-1-dc
/master-key.aes -machine pc-i440fx-2.7,accel=kvm,usb=off,vmport=off
,dump-guest-core=off -cpu Haswell-
noTSX,+vme,+ds,+acpi,+ss,+ht,+tm,+pbe,+dtes64,+monitor,+ds_cpl,+vmx,+est,+tm2,+xtpr,+pdcm,+osxsave,+f16c,+rdrand,+arat,+tsc_adjust,+xsaveopt,+pdpe1gb,+abm
-drive
file=/usr/share/ovmf/x64/ovmf_code_x64.bin,if=pflash,format=raw,unit=0,readonly=on
-drive
file=/var/lib/libvirt/qemu/nvram/dc_VARS.fd,if=pflash,format=raw,unit=1
-m 2048 -realtime mlock=off -smp 4,sockets=1,cores=4,threads=1 -uuid
647fd6b2-9a88-4219-af46-052f68a539a5 -no-user-config -nodefaults
-chardev
socket,id=charmonitor,path=/var/lib/libvirt/qemu/domain-1-dc/monitor.sock,server,nowait
-mon chardev=charmonitor,id=monitor,mode=control -rtc
base=utc,driftfix=slew -global kvm-pit.lost_tick_policy=discard -no-hpet
-no-shutdown -global PIIX4_PM.disable_s3=1 -global PIIX4_PM.disable_s4=1
-boot strict=on -device ich9-usb-ehci1,id=usb,bus=pci.0,addr=0x6.0x7
-device ich9-usb-
uhci1,masterbus=usb.0,firstport=0,bus=pci.0,multifunction=on,addr=0x6
-device ich9-usb-
uhci2,masterbus=usb.0,firstport=2,bus=pci.0,addr=0x6.0x1 -device ich9
-usb-uhci3,masterbus=usb.0,firstport=4,bus=pci.0,addr=0x6.0x2 -device
virtio-serial-pci,id=virtio-serial0,bus=pci.0,addr=0x5 -drive
file=/mnt/shared/server/root/var/lib/libvirt/images/hdd/dc.qcow2,format=qcow2,if=none,id
=drive-virtio-disk0 -device virtio-blk-
pci,scsi=off,bus=pci.0,addr=0x7,drive=drive-virtio-disk0,id=virtio-
disk0,bootindex=1 -netdev tap,fd=27,id=hostnet0,vhost=on,vhostfd=29
-device virtio-net-
pci,netdev=hostnet0,id=net0,mac=52:54:00:58:ce:4e,bus=pci.0,addr=0x3
-chardev pty,id=charserial0 -device isa-
serial,chardev=charserial0,id=serial0 -chardev
spicevmc,id=charchannel0,name=vdagent -device virtserialport,bus=virtio-
serial0.0,nr=1,chardev=charchannel0,id=channel0,name=com.redhat.spice.0
-spice port=5900,addr=127.0.0.1,disable-ticketing,image-compression=off
,seamless-migration=on -device qxl-
vga,id=video0,ram_size=67108864,vram_size=67108864,vram64_size_mb=0,vgamem_mb=16,max_outputs=1,bus=pci.0,addr=0x2
-device intel-hda,id=sound0,bus=pci.0,addr=0x4 -device hda-
duplex,id=sound0-codec0,bus=sound0.0,cad=0 -chardev
spicevmc,id=charredir0,name=usbredir -device usb-
redir,chardev=charredir0,id=redir0,bus=usb.0,port=1 -chardev
spicevmc,id=charredir1,name=usbredir -device usb-
redir,chardev=charredir1,id=redir1,bus=usb.0,port=2 -device virtio-
balloon-pci,id=balloon0,bus=pci.0,addr=0x8 -msg timestamp=on

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https://bugs.launchpad.net/bugs/1635339

Title:
  qxl_pre_save assertion failure on vm "save"

Status in QEMU:
  New

Bug description:
  When I try and save my Windows 10 VM, I see an assertion failure, and
  the machine is shut down.

  I see the following in the log:

  main_channel_handle_parsed: agent start
  qemu-system-x86_64: /build/qemu-Zwynhi/qemu-2.5+dfsg/hw/display/qxl.c:2101: 
qxl_pre_save: Assertion `d->last_release_offset < d->vga.vram_size' failed.
  2016-10-20 11:52:42.713+0000: shutting down

  Please let me know what other information would be relevant!

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