[Qemu-devel] [Bug 1318746] [NEW] qemu Windows 7 BSOD when using hv-time

[Maik Broemme]

Public bug reported:

When I use hv-time sub option and run CPU-Z or 3DMark (Physics Test) the
Windows 7 guest stops with BSOD (SYSTEM_SERVICE_EXCEPTION). It can be
easily reproduced by running CPU-Z. It will fail every second or third
time you execute CPU-Z and fail during "PCI detection". If I disable hv-
time I can run CPU-Z and 3DMark (Physics Test) without any problems.
QEMU was called with the following options:

/usr/bin/taskset -c 4,5,6,7 /usr/bin/qemu-system-x86_64 \
 -machine q35,accel=kvm,kernel_irqchip=on \
 -enable-kvm \
 -serial none \
 -parallel none \
 -monitor none \
 -vga std \
 -boot order=dc \
 -cpu host,hv-time \
 -smp cores=4,threads=1,sockets=1 \
 -m 8192 \
 -k de \
 -rtc base=localtime \
 -drive 
file=/srv/kvm/maggie-drive0.img,id=drive0,if=none,cache=none,aio=threads \
 -mon chardev=monitor0 \
 -chardev socket,id=monitor0,path=/tmp/maggie.monitor,nowait,server \
 -netdev tap,id=net0,vhost=on,helper=/usr/lib/qemu/qemu-bridge-helper \
 -device virtio-net-pci,netdev=net0,mac=00:00:00:02:01:01 \
 -device virtio-blk-pci,drive=drive0,ioeventfd=on \
 -device ioh3420,bus=pcie.0,id=pcie0,port=1,chassis=1,multifunction=on

I've removed the VFIO PCI passthrough line of my GPU to make
reproduction easier. In any case it happens in both scenarios so VGA
passthrough is not the root cause. It happens with linux-3.15-rc5 and
linux-3.14.3 with patch from commit mentioned at
https://bugzilla.kernel.org/show_bug.cgi?id=73721#c3

** Affects: qemu
     Importance: Undecided
         Status: New

** Description changed:

  When I use hv-time sub option and run CPU-Z or 3DMark (Physics Test) the
- Windiws 7 guest stops with BSOD (SYSTEM_SERVICE_EXCEPTION). It can be
+ Windows 7 guest stops with BSOD (SYSTEM_SERVICE_EXCEPTION). It can be
  easily reproduced by running CPU-Z. It will fail every second or third
  time you execute CPU-Z and fail during "PCI detection". If I disable hv-
  time I can run CPU-Z and 3DMark (Physics Test) without any problems.
  QEMU was called with the following options:
  
  /usr/bin/taskset -c 4,5,6,7 /usr/bin/qemu-system-x86_64 \
-       -machine q35,accel=kvm,kernel_irqchip=on \
-       -enable-kvm \
-       -serial none \
-       -parallel none \
-       -monitor none \
-       -vga std \
-       -boot order=dc \
-       -cpu host,hv-time \
-       -smp cores=4,threads=1,sockets=1 \
-       -m 8192 \
-       -k de \
-       -rtc base=localtime \
-       -drive 
file=/srv/kvm/maggie-drive0.img,id=drive0,if=none,cache=none,aio=threads \
-       -mon chardev=monitor0 \
-       -chardev socket,id=monitor0,path=/tmp/maggie.monitor,nowait,server \
-       -netdev tap,id=net0,vhost=on,helper=/usr/lib/qemu/qemu-bridge-helper \
-       -device virtio-net-pci,netdev=net0,mac=00:00:00:02:01:01 \
-       -device virtio-blk-pci,drive=drive0,ioeventfd=on \
-       -device ioh3420,bus=pcie.0,id=pcie0,port=1,chassis=1,multifunction=on
+  -machine q35,accel=kvm,kernel_irqchip=on \
+  -enable-kvm \
+  -serial none \
+  -parallel none \
+  -monitor none \
+  -vga std \
+  -boot order=dc \
+  -cpu host,hv-time \
+  -smp cores=4,threads=1,sockets=1 \
+  -m 8192 \
+  -k de \
+  -rtc base=localtime \
+  -drive 
file=/srv/kvm/maggie-drive0.img,id=drive0,if=none,cache=none,aio=threads \
+  -mon chardev=monitor0 \
+  -chardev socket,id=monitor0,path=/tmp/maggie.monitor,nowait,server \
+  -netdev tap,id=net0,vhost=on,helper=/usr/lib/qemu/qemu-bridge-helper \
+  -device virtio-net-pci,netdev=net0,mac=00:00:00:02:01:01 \
+  -device virtio-blk-pci,drive=drive0,ioeventfd=on \
+  -device ioh3420,bus=pcie.0,id=pcie0,port=1,chassis=1,multifunction=on
  
  I've removed the VFIO PCI passthrough line of my GPU to make
  reproduction easier. In any case it happens in both scenarios so VGA
  passthrough is not the root cause. It happens with linux-3.15-rc5 and
  linux-3.14.3 with patch from commit mentioned at
  https://bugzilla.kernel.org/show_bug.cgi?id=73721#c3

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https://bugs.launchpad.net/bugs/1318746

Title:
  qemu Windows 7 BSOD when using hv-time

Status in QEMU:
  New

Bug description:
  When I use hv-time sub option and run CPU-Z or 3DMark (Physics Test)
  the Windows 7 guest stops with BSOD (SYSTEM_SERVICE_EXCEPTION). It can
  be easily reproduced by running CPU-Z. It will fail every second or
  third time you execute CPU-Z and fail during "PCI detection". If I
  disable hv-time I can run CPU-Z and 3DMark (Physics Test) without any
  problems. QEMU was called with the following options:

  /usr/bin/taskset -c 4,5,6,7 /usr/bin/qemu-system-x86_64 \
   -machine q35,accel=kvm,kernel_irqchip=on \
   -enable-kvm \
   -serial none \
   -parallel none \
   -monitor none \
   -vga std \
   -boot order=dc \
   -cpu host,hv-time \
   -smp cores=4,threads=1,sockets=1 \
   -m 8192 \
   -k de \
   -rtc base=localtime \
   -drive 
file=/srv/kvm/maggie-drive0.img,id=drive0,if=none,cache=none,aio=threads \
   -mon chardev=monitor0 \
   -chardev socket,id=monitor0,path=/tmp/maggie.monitor,nowait,server \
   -netdev tap,id=net0,vhost=on,helper=/usr/lib/qemu/qemu-bridge-helper \
   -device virtio-net-pci,netdev=net0,mac=00:00:00:02:01:01 \
   -device virtio-blk-pci,drive=drive0,ioeventfd=on \
   -device ioh3420,bus=pcie.0,id=pcie0,port=1,chassis=1,multifunction=on

  I've removed the VFIO PCI passthrough line of my GPU to make
  reproduction easier. In any case it happens in both scenarios so VGA
  passthrough is not the root cause. It happens with linux-3.15-rc5 and
  linux-3.14.3 with patch from commit mentioned at
  https://bugzilla.kernel.org/show_bug.cgi?id=73721#c3

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