[Qemu-devel] [Bug 1307473] Re: guest hang due to missing clock interrupt

[urusha]

I have the same symptoms with two trusty-amd64 virtual hosts:
 * win2003, linux guests hang for a period of time (~5 seconds, half of a 
minute and more)
 * win2008 blue screen with the same message

This happens with kernels (host):
Linux vsrv7 3.13.0-27-generic #50-Ubuntu SMP Thu May 15 18:06:16 UTC 2014 
x86_64 x86_64 x86_64 GNU/Linux
Linux vsrv9 3.13.0-29-generic #53-Ubuntu SMP Wed Jun 4 21:00:20 UTC 2014 x86_64 
x86_64 x86_64 GNU/Linux
Qemu version: 2.0.0+dfsg-2ubuntu1.1

Here are qemu params of guests that definately hang:
* precise with 3.11:
qemu-system-x86_64 -enable-kvm -name m -S -machine 
pc-i440fx-trusty,accel=kvm,usb=off -m 4096 -realtime mlock=off -smp 
2,sockets=2,cores=1,threads=1 -uuid ab7f1e0b-e82e-ddb7-b743-903b8732e333 
-no-user-config -nodefaults -chardev 
socket,id=charmonitor,path=/var/lib/libvirt/qemu/m.monitor,server,nowait -mon 
chardev=charmonitor,id=monitor,mode=control -rtc base=utc -no-shutdown -boot 
order=c,menu=on,strict=on -device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 
-device virtio-scsi-pci,id=scsi0,bus=pci.0,addr=0x4 -drive 
file=/dev/vg00/kvm_m_1,if=none,id=drive-scsi0-0-0-0,format=raw,cache=none,aio=native
 -device 
scsi-hd,bus=scsi0.0,channel=0,scsi-id=0,lun=0,drive=drive-scsi0-0-0-0,id=scsi0-0-0-0
 -netdev tap,fd=26,id=hostnet0,vhost=on,vhostfd=29 -device 
virtio-net-pci,netdev=hostnet0,id=net0,mac=52:54:00:3a:76:ad,bus=pci.0,addr=0x3 
-chardev pty,id=charserial0 -device isa-serial,chardev=charserial0,id=serial0 
-vnc 127.0.0.1:3 -device VGA,id=video0,bus=pci.0,addr=0x2 -device 
virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x5
* win 2008 r2:
qemu-system-x86_64 -enable-kvm -name ts2 -S -machine pc-1.0,accel=kvm,usb=off 
-m 10000 -realtime mlock=off -smp 16,sockets=16,cores=1,threads=1 -uuid 
4df29f97-7e47-8af3-0009-a5395c28e3c5 -no-user-config -nodefaults -chardev 
socket,id=charmonitor,path=/var/lib/libvirt/qemu/ts2.monitor,server,nowait -mon 
chardev=charmonitor,id=monitor,mode=control -rtc base=localtime -no-shutdown 
-boot order=c,menu=on,strict=on -device 
piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 -device 
virtio-scsi-pci,id=scsi0,bus=pci.0,addr=0x8 -drive 
file=/dev/vg00/kvm_ts2_1,if=none,id=drive-scsi0-0-0-0,format=raw,cache=none,aio=native
 -device 
scsi-hd,bus=scsi0.0,channel=0,scsi-id=0,lun=0,drive=drive-scsi0-0-0-0,id=scsi0-0-0-0
 -drive 
file=/dev/vg00/kvm_ts2_2,if=none,id=drive-scsi0-0-0-1,format=raw,cache=none,aio=native
 -device 
scsi-hd,bus=scsi0.0,channel=0,scsi-id=0,lun=1,drive=drive-scsi0-0-0-1,id=scsi0-0-0-1
 -drive 
file=/dev/vg00/kvm_ts2_3,if=none,id=drive-scsi0-0-0-2,format=raw,cache=none,aio=native
 -device 
scsi-hd,bus=scsi0.0,channel=0,scsi-id=0,lun=2,drive=drive-scsi0-0-0-2,id=scsi0-0-0-2
 -netdev tap,fd=26,id=hostnet0,vhost=on,vhostfd=30 -device 
virtio-net-pci,netdev=hostnet0,id=net0,mac=52:54:00:ac:28:3a,bus=pci.0,addr=0x3 
-chardev pty,id=charserial0 -device isa-serial,chardev=charserial0,id=serial0 
-device usb-tablet,id=input0 -vnc 127.0.0.1:0 -device 
VGA,id=video0,bus=pci.0,addr=0x2 -device 
virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x4
* win 2003:
qemu-system-x86_64 -enable-kvm -name ts4 -S -machine 
pc-i440fx-trusty,accel=kvm,usb=off -m 8192 -realtime mlock=off -smp 
4,sockets=4,cores=1,threads=1 -uuid d9f9b238-5cb6-59a8-f3aa-ccfc6656040a 
-no-user-config -nodefaults -chardev 
socket,id=charmonitor,path=/var/lib/libvirt/qemu/ts4.monitor,server,nowait -mon 
chardev=charmonitor,id=monitor,mode=control -rtc base=localtime -no-shutdown 
-boot order=c,menu=on,strict=on -device 
piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 -drive 
file=/dev/vg00/kvm_ts4_1,if=none,id=drive-virtio-disk0,format=raw,cache=none,aio=native
 -device 
virtio-blk-pci,scsi=off,bus=pci.0,addr=0x4,drive=drive-virtio-disk0,id=virtio-disk0
 -netdev tap,fd=26,id=hostnet0,vhost=on,vhostfd=27 -device 
virtio-net-pci,netdev=hostnet0,id=net0,mac=52:54:00:37:6b:8d,bus=pci.0,addr=0x3 
-chardev pty,id=charserial0 -device isa-serial,chardev=charserial0,id=serial0 
-device usb-tablet,id=input0 -vnc 127.0.0.1:2 -device 
VGA,id=video0,bus=pci.0,addr=0x2 -device 
virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x5

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https://bugs.launchpad.net/bugs/1307473

Title:
  guest hang due to missing clock interrupt

Status in QEMU:
  New
Status in “qemu” package in Ubuntu:
  Confirmed

Bug description:
  
  I noticed on 2 different systems that after upgrade from precise to latest 
trusty VMs are crashing:

  - in case of Windows VMs I'm getting BSOD with error message: "A clock 
interrupt was not received on a secondary processor within the allocated time 
interval."
  - On linux VMs I'm noticing "hrtimer: interrupt took 2992229 ns" messages 
  - On some proprietary virtual appliances I'm noticing crashes an due to 
missing timer interrupts

  QEMU version is:
  QEMU emulator version 1.7.91 (Debian 2.0.0~rc1+dfsg-0ubuntu3)

  Full command line:

  qemu-system-x86_64 -enable-kvm -name win7eval -S -machine pc-
  i440fx-1.7,accel=kvm,usb=off -cpu host -m 4096 -realtime mlock=off
  -smp 4,sockets=1,cores=4,threads=1 -uuid 05e5089a-
  4aa1-6bb2-ef06-a6666b4d020a -no-user-config -nodefaults -chardev
  
socket,id=charmonitor,path=/var/lib/libvirt/qemu/win7eval.monitor,server,nowait
  -mon chardev=charmonitor,id=monitor,mode=control -rtc base=localtime
  -no-shutdown -boot strict=on -device piix3-usb-
  uhci,id=usb,bus=pci.0,addr=0x1.0x2 -drive
  file=/var/vm/win7eval.qcow2,if=none,id=drive-virtio-disk0,format=qcow2
  -device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x4,drive=drive-virtio-
  disk0,id=virtio-disk0,bootindex=1 -drive
  file=/home/damarion/iso/7600.16385.090713-1255_x86fre_enterprise_en-
  us_EVAL_Eval_Enterprise-GRMCENEVAL_EN_DVD.iso,if=none,id=drive-
  ide0-0-0,readonly=on,format=raw -device ide-cd,bus=ide.0,unit=0,drive
  =drive-ide0-0-0,id=ide0-0-0 -drive file=/home/damarion/iso/virtio-
  win-0.1-74.iso,if=none,id=drive-ide0-1-0,readonly=on,format=raw
  -device ide-cd,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0
  -netdev tap,fd=24,id=hostnet0 -device
  e1000,netdev=hostnet0,id=net0,mac=52:54:00:38:31:0a,bus=pci.0,addr=0x3
  -chardev pty,id=charserial0 -device isa-
  serial,chardev=charserial0,id=serial0 -device usb-tablet,id=input0
  -vnc 127.0.0.1:1 -device VGA,id=video0,bus=pci.0,addr=0x2 -device
  virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x5

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