[Qemu-devel] [Bug 1518969] [NEW] Instance of QEMU doesn't unplug virtio scsi disk after device_del and drive_del commands

[Qemu-devel] [Bug 1518969] [NEW] Instance of QEMU doesn't unplug virtio scsi disk after device_del and drive_del commands

[Marian Horban]

Public bug reported:

device_del and drive_del commands don't cause virtio disk detaching

Steps to reproduce:
1. Run instance

2. Attach virtio scsi disk

3. Reboot instance

4. Immediately after reboot detach disk with QEMU commands:
device_del
drive_del

Expected result:
Disk should be detached anyway

Actual:
Domain info contains attached disk even after waiting long period of time(5 min in my case).

Additional info:
QEMU process:
root     29010 42.6  1.9 562036 61272 ?        Rl   03:42   0:01 /usr/bin/qemu-system-x86_64 -name instance-00000069 -S -machine pc-i440fx-trusty,accel=tcg,usb=off -m 64 -realtime mlock=off -smp 1,sockets=1,cores=1,threads=1 -uuid d2418536-2547-4740-96b5-0d4f1d74b9f3 -smbios type=1,manufacturer=OpenStack Foundation,product=OpenStack Nova,version=13.0.0,serial=1fd8f69a-909b-4ed1-aae9-4fc9318fc622,uuid=d2418536-2547-4740-96b5-0d4f1d74b9f3,family=Virtual Machine -no-user-config -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/instance-00000069.monitor,server,nowait -mon chardev=charmonitor,id=monitor,mode=control -rtc base=utc -no-shutdown -boot strict=on -kernel /opt/stack/data/nova/instances/d2418536-2547-4740-96b5-0d4f1d74b9f3/kernel -initrd /opt/stack/data/nova/instances/d2418536-2547-4740-96b5-0d4f1d74b9f3/ramdisk -append root=/dev/vda console=tty0 console=ttyS0 no_timer_check -device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 -drive file=/opt/stack/data/nova/instances/d2418536-2547-4740-96b5-0d4f1d74b9f3/disk,if=none,id=drive-virtio-disk0,format=qcow2,cache=none -device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x4,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1 -drive file=/opt/stack/data/nova/instances/d2418536-2547-4740-96b5-0d4f1d74b9f3/disk.config,if=none,id=drive-ide0-1-1,readonly=on,format=raw,cache=none -device ide-cd,bus=ide.1,unit=1,drive=drive-ide0-1-1,id=ide0-1-1 -netdev tap,fd=18,id=hostnet0 -device virtio-net-pci,netdev=hostnet0,id=net0,mac=fa:16:3e:1a:10:3d,bus=pci.0,addr=0x3 -chardev file,id=charserial0,path=/opt/stack/data/nova/instances/d2418536-2547-4740-96b5-0d4f1d74b9f3/console.log -device isa-serial,chardev=charserial0,id=serial0 -chardev pty,id=charserial1 -device isa-serial,chardev=charserial1,id=serial1 -vnc 127.0.0.1:1 -k en-us -device cirrus-vga,id=video0,bus=pci.0,addr=0x2 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x5

QEMU version:
qemu-system-x86_64 --version
QEMU emulator version 2.0.0 (Debian 2.0.0+dfsg-2ubuntu1.19), Copyright (c) 2003-2008 Fabrice Bellard

** Affects: qemu
     Importance: Undecided
         Status: New

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Title:
  Instance of QEMU doesn't unplug virtio scsi disk after device_del and
  drive_del commands

Status in QEMU:
  New

Bug description:
  device_del and drive_del commands don't cause virtio disk detaching

  Steps to reproduce:
  1. Run instance

  2. Attach virtio scsi disk

  3. Reboot instance

  4. Immediately after reboot detach disk with QEMU commands:
  device_del
  drive_del

  Expected result:
  Disk should be detached anyway

  Actual:
  Domain info contains attached disk even after waiting long period of time(5 min in my case).

  Additional info:
  QEMU process:
  root     29010 42.6  1.9 562036 61272 ?        Rl   03:42   0:01 /usr/bin/qemu-system-x86_64 -name instance-00000069 -S -machine pc-i440fx-trusty,accel=tcg,usb=off -m 64 -realtime mlock=off -smp 1,sockets=1,cores=1,threads=1 -uuid d2418536-2547-4740-96b5-0d4f1d74b9f3 -smbios type=1,manufacturer=OpenStack Foundation,product=OpenStack Nova,version=13.0.0,serial=1fd8f69a-909b-4ed1-aae9-4fc9318fc622,uuid=d2418536-2547-4740-96b5-0d4f1d74b9f3,family=Virtual Machine -no-user-config -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/instance-00000069.monitor,server,nowait -mon chardev=charmonitor,id=monitor,mode=control -rtc base=utc -no-shutdown -boot strict=on -kernel /opt/stack/data/nova/instances/d2418536-2547-4740-96b5-0d4f1d74b9f3/kernel -initrd /opt/stack/data/nova/instances/d2418536-2547-4740-96b5-0d4f1d74b9f3/ramdisk -append root=/dev/vda console=tty0 console=ttyS0 no_timer_check -device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 -drive file=/opt/stack/data/nova/instances/d2418536-2547-4740-96b5-0d4f1d74b9f3/disk,if=none,id=drive-virtio-disk0,format=qcow2,cache=none -device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x4,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1 -drive file=/opt/stack/data/nova/instances/d2418536-2547-4740-96b5-0d4f1d74b9f3/disk.config,if=none,id=drive-ide0-1-1,readonly=on,format=raw,cache=none -device ide-cd,bus=ide.1,unit=1,drive=drive-ide0-1-1,id=ide0-1-1 -netdev tap,fd=18,id=hostnet0 -device virtio-net-pci,netdev=hostnet0,id=net0,mac=fa:16:3e:1a:10:3d,bus=pci.0,addr=0x3 -chardev file,id=charserial0,path=/opt/stack/data/nova/instances/d2418536-2547-4740-96b5-0d4f1d74b9f3/console.log -device isa-serial,chardev=charserial0,id=serial0 -chardev pty,id=charserial1 -device isa-serial,chardev=charserial1,id=serial1 -vnc 127.0.0.1:1 -k en-us -device cirrus-vga,id=video0,bus=pci.0,addr=0x2 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x5

  QEMU version:
  qemu-system-x86_64 --version
  QEMU emulator version 2.0.0 (Debian 2.0.0+dfsg-2ubuntu1.19), Copyright (c) 2003-2008 Fabrice Bellard

To manage notifications about this bug go to:
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Re: [Qemu-devel] [Bug 1518969] [NEW] Instance of QEMU doesn't unplug virtio scsi disk after device_del and drive_del commands

[Markus Armbruster]

Marian Horban <mhorban@mirantis.com> writes:

> Public bug reported:
>
> device_del and drive_del commands don't cause virtio disk detaching
>
> Steps to reproduce:
> 1. Run instance
>
> 2. Attach virtio scsi disk
>
> 3. Reboot instance
>
> 4. Immediately after reboot detach disk with QEMU commands:
> device_del
> drive_del

Exact commands, please, for steps 2..4 (step 1 is covered below).

> Expected result:
> Disk should be detached anyway
>
> Actual:
> Domain info contains attached disk even after waiting long period of time(5 min in my case).

What do you mean by "domain info"?

> Additional info:
> QEMU process:
> root     29010 42.6  1.9 562036 61272 ?        Rl   03:42   0:01 /usr/bin/qemu-system-x86_64 -name instance-00000069 -S -machine pc-i440fx-trusty,accel=tcg,usb=off -m 64 -realtime mlock=off -smp 1,sockets=1,cores=1,threads=1 -uuid d2418536-2547-4740-96b5-0d4f1d74b9f3 -smbios type=1,manufacturer=OpenStack Foundation,product=OpenStack Nova,version=13.0.0,serial=1fd8f69a-909b-4ed1-aae9-4fc9318fc622,uuid=d2418536-2547-4740-96b5-0d4f1d74b9f3,family=Virtual Machine -no-user-config -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/instance-00000069.monitor,server,nowait -mon chardev=charmonitor,id=monitor,mode=control -rtc base=utc -no-shutdown -boot strict=on -kernel /opt/stack/data/nova/instances/d2418536-2547-4740-96b5-0d4f1d74b9f3/kernel -initrd /opt/stack/data/nova/instances/d2418536-2547-4740-96b5-0d4f1d74b9f3/ramdisk -append root=/dev/vda console=tty0 console=ttyS0 no_timer_check -device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 -drive file=/opt/stack/data/nova/instances/d2418536-2547-4740-96b5-0d4f1d74b9f3/disk,if=none,id=drive-virtio-disk0,format=qcow2,cache=none -device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x4,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1 -drive file=/opt/stack/data/nova/instances/d2418536-2547-4740-96b5-0d4f1d74b9f3/disk.config,if=none,id=drive-ide0-1-1,readonly=on,format=raw,cache=none -device ide-cd,bus=ide.1,unit=1,drive=drive-ide0-1-1,id=ide0-1-1 -netdev tap,fd=18,id=hostnet0 -device virtio-net-pci,netdev=hostnet0,id=net0,mac=fa:16:3e:1a:10:3d,bus=pci.0,addr=0x3 -chardev file,id=charserial0,path=/opt/stack/data/nova/instances/d2418536-2547-4740-96b5-0d4f1d74b9f3/console.log -device isa-serial,chardev=charserial0,id=serial0 -chardev pty,id=charserial1 -device isa-serial,chardev=charserial1,id=serial1 -vnc 127.0.0.1:1 -k en-us -device cirrus-vga,id=video0,bus=pci.0,addr=0x2 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x5
>
> QEMU version:
> qemu-system-x86_64 --version
> QEMU emulator version 2.0.0 (Debian 2.0.0+dfsg-2ubuntu1.19), Copyright (c) 2003-2008 Fabrice Bellard
>
> ** Affects: qemu
>      Importance: Undecided
>          Status: New

[Qemu-devel] [Bug 1518969] Re: Instance of QEMU doesn't unplug virtio scsi disk after device_del and drive_del commands

[Michael liu]

Maybe  you detach disk too fast.When you detach disk,the guest os maybe
has not loaded the hotplug modules.So it can not detect your detach
event.Can you test the situation when detaching  disk after guest os
starting up ?

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You received this bug notification because you are a member of qemu-
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https://bugs.launchpad.net/bugs/1518969

Title:
  Instance of QEMU doesn't unplug virtio scsi disk after device_del and
  drive_del commands

Status in QEMU:
  New

Bug description:
  device_del and drive_del commands don't cause virtio disk detaching

  Steps to reproduce:
  1. Run instance

  2. Attach virtio scsi disk

  3. Reboot instance

  4. Immediately after reboot detach disk with QEMU commands:
  device_del
  drive_del

  Expected result:
  Disk should be detached anyway

  Actual:
  Domain info contains attached disk even after waiting long period of time(5 min in my case).

  Additional info:
  QEMU process:
  root     29010 42.6  1.9 562036 61272 ?        Rl   03:42   0:01 /usr/bin/qemu-system-x86_64 -name instance-00000069 -S -machine pc-i440fx-trusty,accel=tcg,usb=off -m 64 -realtime mlock=off -smp 1,sockets=1,cores=1,threads=1 -uuid d2418536-2547-4740-96b5-0d4f1d74b9f3 -smbios type=1,manufacturer=OpenStack Foundation,product=OpenStack Nova,version=13.0.0,serial=1fd8f69a-909b-4ed1-aae9-4fc9318fc622,uuid=d2418536-2547-4740-96b5-0d4f1d74b9f3,family=Virtual Machine -no-user-config -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/instance-00000069.monitor,server,nowait -mon chardev=charmonitor,id=monitor,mode=control -rtc base=utc -no-shutdown -boot strict=on -kernel /opt/stack/data/nova/instances/d2418536-2547-4740-96b5-0d4f1d74b9f3/kernel -initrd /opt/stack/data/nova/instances/d2418536-2547-4740-96b5-0d4f1d74b9f3/ramdisk -append root=/dev/vda console=tty0 console=ttyS0 no_timer_check -device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 -drive file=/opt/stack/data/nova/instances/d2418536-2547-4740-96b5-0d4f1d74b9f3/disk,if=none,id=drive-virtio-disk0,format=qcow2,cache=none -device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x4,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1 -drive file=/opt/stack/data/nova/instances/d2418536-2547-4740-96b5-0d4f1d74b9f3/disk.config,if=none,id=drive-ide0-1-1,readonly=on,format=raw,cache=none -device ide-cd,bus=ide.1,unit=1,drive=drive-ide0-1-1,id=ide0-1-1 -netdev tap,fd=18,id=hostnet0 -device virtio-net-pci,netdev=hostnet0,id=net0,mac=fa:16:3e:1a:10:3d,bus=pci.0,addr=0x3 -chardev file,id=charserial0,path=/opt/stack/data/nova/instances/d2418536-2547-4740-96b5-0d4f1d74b9f3/console.log -device isa-serial,chardev=charserial0,id=serial0 -chardev pty,id=charserial1 -device isa-serial,chardev=charserial1,id=serial1 -vnc 127.0.0.1:1 -k en-us -device cirrus-vga,id=video0,bus=pci.0,addr=0x2 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x5

  QEMU version:
  qemu-system-x86_64 --version
  QEMU emulator version 2.0.0 (Debian 2.0.0+dfsg-2ubuntu1.19), Copyright (c) 2003-2008 Fabrice Bellard

To manage notifications about this bug go to:
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[Bug 1518969] Re: Instance of QEMU doesn't unplug virtio scsi disk after device_del and drive_del commands

[Thomas Huth]

The QEMU project is currently considering to move its bug tracking to another system. For this we need to know which bugs are still valid and which could be closed already. Thus we are setting older bugs to "Incomplete" now.
If you still think this bug report here is valid, then please switch the state back to "New" within the next 60 days, otherwise this report will be marked as "Expired". Or mark it as "Fix Released" if the problem has been solved with a newer version of QEMU already. Thank you and sorry for the inconvenience.

** Changed in: qemu
       Status: New => Incomplete

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You received this bug notification because you are a member of qemu-
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https://bugs.launchpad.net/bugs/1518969

Title:
  Instance of QEMU doesn't unplug virtio scsi disk after device_del and
  drive_del commands

Status in QEMU:
  Incomplete

Bug description:
  device_del and drive_del commands don't cause virtio disk detaching

  Steps to reproduce:
  1. Run instance

  2. Attach virtio scsi disk

  3. Reboot instance

  4. Immediately after reboot detach disk with QEMU commands:
  device_del
  drive_del

  Expected result:
  Disk should be detached anyway

  Actual:
  Domain info contains attached disk even after waiting long period of time(5 min in my case).

  Additional info:
  QEMU process:
  root     29010 42.6  1.9 562036 61272 ?        Rl   03:42   0:01 /usr/bin/qemu-system-x86_64 -name instance-00000069 -S -machine pc-i440fx-trusty,accel=tcg,usb=off -m 64 -realtime mlock=off -smp 1,sockets=1,cores=1,threads=1 -uuid d2418536-2547-4740-96b5-0d4f1d74b9f3 -smbios type=1,manufacturer=OpenStack Foundation,product=OpenStack Nova,version=13.0.0,serial=1fd8f69a-909b-4ed1-aae9-4fc9318fc622,uuid=d2418536-2547-4740-96b5-0d4f1d74b9f3,family=Virtual Machine -no-user-config -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/instance-00000069.monitor,server,nowait -mon chardev=charmonitor,id=monitor,mode=control -rtc base=utc -no-shutdown -boot strict=on -kernel /opt/stack/data/nova/instances/d2418536-2547-4740-96b5-0d4f1d74b9f3/kernel -initrd /opt/stack/data/nova/instances/d2418536-2547-4740-96b5-0d4f1d74b9f3/ramdisk -append root=/dev/vda console=tty0 console=ttyS0 no_timer_check -device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 -drive file=/opt/stack/data/nova/instances/d2418536-2547-4740-96b5-0d4f1d74b9f3/disk,if=none,id=drive-virtio-disk0,format=qcow2,cache=none -device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x4,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1 -drive file=/opt/stack/data/nova/instances/d2418536-2547-4740-96b5-0d4f1d74b9f3/disk.config,if=none,id=drive-ide0-1-1,readonly=on,format=raw,cache=none -device ide-cd,bus=ide.1,unit=1,drive=drive-ide0-1-1,id=ide0-1-1 -netdev tap,fd=18,id=hostnet0 -device virtio-net-pci,netdev=hostnet0,id=net0,mac=fa:16:3e:1a:10:3d,bus=pci.0,addr=0x3 -chardev file,id=charserial0,path=/opt/stack/data/nova/instances/d2418536-2547-4740-96b5-0d4f1d74b9f3/console.log -device isa-serial,chardev=charserial0,id=serial0 -chardev pty,id=charserial1 -device isa-serial,chardev=charserial1,id=serial1 -vnc 127.0.0.1:1 -k en-us -device cirrus-vga,id=video0,bus=pci.0,addr=0x2 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x5

  QEMU version:
  qemu-system-x86_64 --version
  QEMU emulator version 2.0.0 (Debian 2.0.0+dfsg-2ubuntu1.19), Copyright (c) 2003-2008 Fabrice Bellard

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1518969/+subscriptions

[Bug 1518969] Re: Instance of QEMU doesn't unplug virtio scsi disk after device_del and drive_del commands

[Launchpad Bug Tracker]

[Expired for QEMU because there has been no activity for 60 days.]

** Changed in: qemu
       Status: Incomplete => Expired

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You received this bug notification because you are a member of qemu-
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https://bugs.launchpad.net/bugs/1518969

Title:
  Instance of QEMU doesn't unplug virtio scsi disk after device_del and
  drive_del commands

Status in QEMU:
  Expired

Bug description:
  device_del and drive_del commands don't cause virtio disk detaching

  Steps to reproduce:
  1. Run instance

  2. Attach virtio scsi disk

  3. Reboot instance

  4. Immediately after reboot detach disk with QEMU commands:
  device_del
  drive_del

  Expected result:
  Disk should be detached anyway

  Actual:
  Domain info contains attached disk even after waiting long period of time(5 min in my case).

  Additional info:
  QEMU process:
  root     29010 42.6  1.9 562036 61272 ?        Rl   03:42   0:01 /usr/bin/qemu-system-x86_64 -name instance-00000069 -S -machine pc-i440fx-trusty,accel=tcg,usb=off -m 64 -realtime mlock=off -smp 1,sockets=1,cores=1,threads=1 -uuid d2418536-2547-4740-96b5-0d4f1d74b9f3 -smbios type=1,manufacturer=OpenStack Foundation,product=OpenStack Nova,version=13.0.0,serial=1fd8f69a-909b-4ed1-aae9-4fc9318fc622,uuid=d2418536-2547-4740-96b5-0d4f1d74b9f3,family=Virtual Machine -no-user-config -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/instance-00000069.monitor,server,nowait -mon chardev=charmonitor,id=monitor,mode=control -rtc base=utc -no-shutdown -boot strict=on -kernel /opt/stack/data/nova/instances/d2418536-2547-4740-96b5-0d4f1d74b9f3/kernel -initrd /opt/stack/data/nova/instances/d2418536-2547-4740-96b5-0d4f1d74b9f3/ramdisk -append root=/dev/vda console=tty0 console=ttyS0 no_timer_check -device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 -drive file=/opt/stack/data/nova/instances/d2418536-2547-4740-96b5-0d4f1d74b9f3/disk,if=none,id=drive-virtio-disk0,format=qcow2,cache=none -device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x4,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1 -drive file=/opt/stack/data/nova/instances/d2418536-2547-4740-96b5-0d4f1d74b9f3/disk.config,if=none,id=drive-ide0-1-1,readonly=on,format=raw,cache=none -device ide-cd,bus=ide.1,unit=1,drive=drive-ide0-1-1,id=ide0-1-1 -netdev tap,fd=18,id=hostnet0 -device virtio-net-pci,netdev=hostnet0,id=net0,mac=fa:16:3e:1a:10:3d,bus=pci.0,addr=0x3 -chardev file,id=charserial0,path=/opt/stack/data/nova/instances/d2418536-2547-4740-96b5-0d4f1d74b9f3/console.log -device isa-serial,chardev=charserial0,id=serial0 -chardev pty,id=charserial1 -device isa-serial,chardev=charserial1,id=serial1 -vnc 127.0.0.1:1 -k en-us -device cirrus-vga,id=video0,bus=pci.0,addr=0x2 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x5

  QEMU version:
  qemu-system-x86_64 --version
  QEMU emulator version 2.0.0 (Debian 2.0.0+dfsg-2ubuntu1.19), Copyright (c) 2003-2008 Fabrice Bellard

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1518969/+subscriptions