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* [Bug 1923648] [NEW] macOS App Nap feature gradually freezes QEMU process
@ 2021-04-13 17:47 Vasiliy Nikonov
  2021-05-15 10:22 ` [Bug 1923648] " Thomas Huth
                   ` (2 more replies)
  0 siblings, 3 replies; 4+ messages in thread
From: Vasiliy Nikonov @ 2021-04-13 17:47 UTC (permalink / raw)
  To: qemu-devel

Public bug reported:

macOS version: 10.15.2
QEMU versions: 5.2.0 (from MacPorts)
               5.2.92 (v6.0.0-rc2-23-g9692c7b037)

If the QEMU window is not visible (hidden, minimized or another
application is in full screen mode), the QEMU process gradually freezes:
it still runs, but the VM does not respond to external requests such as
Telnet or SSH until the QEMU window is visible on the desktop.

This behavior is due to the work of the macOS App Nap function:
https://developer.apple.com/library/archive/documentation/Performance/Conceptual/power_efficiency_guidelines_osx/AppNap.html#//apple_ref/doc/uid/TP40013929-CH2-SW1

It doesn't matter how the process is started -- as a background job or
as a foreground shell process in case QEMU has a desktop window.

My VM does not have a display output, only a serial line, most likely if
the VM was using OpenGL, or playing sound (or any other App Nap
triggers), then the problem would never have been detected.

In my case only one starting way without this problem:
sudo qemu-system-x86_64 -nodefaults \
-cpu host -accel hvf -smp 1 -m 384 \
-device virtio-blk-pci,drive=flash0 \
-drive file=/vios-adventerprisek9-m.vmdk.SPA.156-1.T.vmdk,if=none,format=vmdk,id=flash0 \
-device e1000,netdev=local -netdev tap,id=local,ifname=tap0,script=no,downscript=no \
-serial stdio -display none

The typical way from the internet to disable App Nap doesn't work:
defaults write NSGlobalDomain NSAppSleepDisabled -bool YES

** Affects: qemu
     Importance: Undecided
         Status: New


** Tags: app-nap freezes macos

** Tags removed: appnap
** Tags added: app-nap

-- 
You received this bug notification because you are a member of qemu-
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https://bugs.launchpad.net/bugs/1923648

Title:
  macOS App Nap feature gradually freezes QEMU process

Status in QEMU:
  New

Bug description:
  macOS version: 10.15.2
  QEMU versions: 5.2.0 (from MacPorts)
                 5.2.92 (v6.0.0-rc2-23-g9692c7b037)

  If the QEMU window is not visible (hidden, minimized or another
  application is in full screen mode), the QEMU process gradually
  freezes: it still runs, but the VM does not respond to external
  requests such as Telnet or SSH until the QEMU window is visible on the
  desktop.

  This behavior is due to the work of the macOS App Nap function:
  https://developer.apple.com/library/archive/documentation/Performance/Conceptual/power_efficiency_guidelines_osx/AppNap.html#//apple_ref/doc/uid/TP40013929-CH2-SW1

  It doesn't matter how the process is started -- as a background job or
  as a foreground shell process in case QEMU has a desktop window.

  My VM does not have a display output, only a serial line, most likely
  if the VM was using OpenGL, or playing sound (or any other App Nap
  triggers), then the problem would never have been detected.

  In my case only one starting way without this problem:
  sudo qemu-system-x86_64 -nodefaults \
  -cpu host -accel hvf -smp 1 -m 384 \
  -device virtio-blk-pci,drive=flash0 \
  -drive file=/vios-adventerprisek9-m.vmdk.SPA.156-1.T.vmdk,if=none,format=vmdk,id=flash0 \
  -device e1000,netdev=local -netdev tap,id=local,ifname=tap0,script=no,downscript=no \
  -serial stdio -display none

  The typical way from the internet to disable App Nap doesn't work:
  defaults write NSGlobalDomain NSAppSleepDisabled -bool YES

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1923648/+subscriptions


^ permalink raw reply	[flat|nested] 4+ messages in thread

* [Bug 1923648] Re: macOS App Nap feature gradually freezes QEMU process
  2021-04-13 17:47 [Bug 1923648] [NEW] macOS App Nap feature gradually freezes QEMU process Vasiliy Nikonov
@ 2021-05-15 10:22 ` Thomas Huth
  2021-05-17 17:38 ` Vasiliy Nikonov
  2021-05-17 18:39 ` Thomas Huth
  2 siblings, 0 replies; 4+ messages in thread
From: Thomas Huth @ 2021-05-15 10:22 UTC (permalink / raw)
  To: qemu-devel

The QEMU project is currently moving 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 the bug state to "Incomplete" now.

If the bug has already been fixed in the latest upstream version of QEMU,
then please close this ticket as "Fix released".

If it is not fixed yet and you think that this bug report here is still
valid, then you have two options:

1) If you already have an account on gitlab.com, please open a new ticket
for this problem in our new tracker here:

    https://gitlab.com/qemu-project/qemu/-/issues

and then close this ticket here on Launchpad (or let it expire auto-
matically after 60 days). Please mention the URL of this bug ticket on
Launchpad in the new ticket on GitLab.

2) If you don't have an account on gitlab.com and don't intend to get
one, but still would like to keep this ticket opened, then please switch
the state back to "New" or "Confirmed" within the next 60 days (other-
wise it will get closed as "Expired"). We will then eventually migrate
the ticket automatically to the new system (but you won't be the reporter
of the bug in the new system and thus you won't get notified on changes
anymore).

Thank you and sorry for the inconvenience.


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

-- 
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1923648

Title:
  macOS App Nap feature gradually freezes QEMU process

Status in QEMU:
  Incomplete

Bug description:
  macOS version: 10.15.2
  QEMU versions: 5.2.0 (from MacPorts)
                 5.2.92 (v6.0.0-rc2-23-g9692c7b037)

  If the QEMU window is not visible (hidden, minimized or another
  application is in full screen mode), the QEMU process gradually
  freezes: it still runs, but the VM does not respond to external
  requests such as Telnet or SSH until the QEMU window is visible on the
  desktop.

  This behavior is due to the work of the macOS App Nap function:
  https://developer.apple.com/library/archive/documentation/Performance/Conceptual/power_efficiency_guidelines_osx/AppNap.html#//apple_ref/doc/uid/TP40013929-CH2-SW1

  It doesn't matter how the process is started -- as a background job or
  as a foreground shell process in case QEMU has a desktop window.

  My VM does not have a display output, only a serial line, most likely
  if the VM was using OpenGL, or playing sound (or any other App Nap
  triggers), then the problem would never have been detected.

  In my case only one starting way without this problem:
  sudo qemu-system-x86_64 -nodefaults \
  -cpu host -accel hvf -smp 1 -m 384 \
  -device virtio-blk-pci,drive=flash0 \
  -drive file=/vios-adventerprisek9-m.vmdk.SPA.156-1.T.vmdk,if=none,format=vmdk,id=flash0 \
  -device e1000,netdev=local -netdev tap,id=local,ifname=tap0,script=no,downscript=no \
  -serial stdio -display none

  The typical way from the internet to disable App Nap doesn't work:
  defaults write NSGlobalDomain NSAppSleepDisabled -bool YES

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1923648/+subscriptions


^ permalink raw reply	[flat|nested] 4+ messages in thread

* [Bug 1923648] Re: macOS App Nap feature gradually freezes QEMU process
  2021-04-13 17:47 [Bug 1923648] [NEW] macOS App Nap feature gradually freezes QEMU process Vasiliy Nikonov
  2021-05-15 10:22 ` [Bug 1923648] " Thomas Huth
@ 2021-05-17 17:38 ` Vasiliy Nikonov
  2021-05-17 18:39 ` Thomas Huth
  2 siblings, 0 replies; 4+ messages in thread
From: Vasiliy Nikonov @ 2021-05-17 17:38 UTC (permalink / raw)
  To: qemu-devel

** Changed in: qemu
       Status: Incomplete => Fix Released

-- 
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1923648

Title:
  macOS App Nap feature gradually freezes QEMU process

Status in QEMU:
  Fix Released

Bug description:
  macOS version: 10.15.2
  QEMU versions: 5.2.0 (from MacPorts)
                 5.2.92 (v6.0.0-rc2-23-g9692c7b037)

  If the QEMU window is not visible (hidden, minimized or another
  application is in full screen mode), the QEMU process gradually
  freezes: it still runs, but the VM does not respond to external
  requests such as Telnet or SSH until the QEMU window is visible on the
  desktop.

  This behavior is due to the work of the macOS App Nap function:
  https://developer.apple.com/library/archive/documentation/Performance/Conceptual/power_efficiency_guidelines_osx/AppNap.html#//apple_ref/doc/uid/TP40013929-CH2-SW1

  It doesn't matter how the process is started -- as a background job or
  as a foreground shell process in case QEMU has a desktop window.

  My VM does not have a display output, only a serial line, most likely
  if the VM was using OpenGL, or playing sound (or any other App Nap
  triggers), then the problem would never have been detected.

  In my case only one starting way without this problem:
  sudo qemu-system-x86_64 -nodefaults \
  -cpu host -accel hvf -smp 1 -m 384 \
  -device virtio-blk-pci,drive=flash0 \
  -drive file=/vios-adventerprisek9-m.vmdk.SPA.156-1.T.vmdk,if=none,format=vmdk,id=flash0 \
  -device e1000,netdev=local -netdev tap,id=local,ifname=tap0,script=no,downscript=no \
  -serial stdio -display none

  The typical way from the internet to disable App Nap doesn't work:
  defaults write NSGlobalDomain NSAppSleepDisabled -bool YES

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1923648/+subscriptions


^ permalink raw reply	[flat|nested] 4+ messages in thread

* [Bug 1923648] Re: macOS App Nap feature gradually freezes QEMU process
  2021-04-13 17:47 [Bug 1923648] [NEW] macOS App Nap feature gradually freezes QEMU process Vasiliy Nikonov
  2021-05-15 10:22 ` [Bug 1923648] " Thomas Huth
  2021-05-17 17:38 ` Vasiliy Nikonov
@ 2021-05-17 18:39 ` Thomas Huth
  2 siblings, 0 replies; 4+ messages in thread
From: Thomas Huth @ 2021-05-17 18:39 UTC (permalink / raw)
  To: qemu-devel

Moved here:
https://gitlab.com/qemu-project/qemu/-/issues/334

** Bug watch added: gitlab.com/qemu-project/qemu/-/issues #334
   https://gitlab.com/qemu-project/qemu/-/issues/334

-- 
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1923648

Title:
  macOS App Nap feature gradually freezes QEMU process

Status in QEMU:
  Fix Released

Bug description:
  macOS version: 10.15.2
  QEMU versions: 5.2.0 (from MacPorts)
                 5.2.92 (v6.0.0-rc2-23-g9692c7b037)

  If the QEMU window is not visible (hidden, minimized or another
  application is in full screen mode), the QEMU process gradually
  freezes: it still runs, but the VM does not respond to external
  requests such as Telnet or SSH until the QEMU window is visible on the
  desktop.

  This behavior is due to the work of the macOS App Nap function:
  https://developer.apple.com/library/archive/documentation/Performance/Conceptual/power_efficiency_guidelines_osx/AppNap.html#//apple_ref/doc/uid/TP40013929-CH2-SW1

  It doesn't matter how the process is started -- as a background job or
  as a foreground shell process in case QEMU has a desktop window.

  My VM does not have a display output, only a serial line, most likely
  if the VM was using OpenGL, or playing sound (or any other App Nap
  triggers), then the problem would never have been detected.

  In my case only one starting way without this problem:
  sudo qemu-system-x86_64 -nodefaults \
  -cpu host -accel hvf -smp 1 -m 384 \
  -device virtio-blk-pci,drive=flash0 \
  -drive file=/vios-adventerprisek9-m.vmdk.SPA.156-1.T.vmdk,if=none,format=vmdk,id=flash0 \
  -device e1000,netdev=local -netdev tap,id=local,ifname=tap0,script=no,downscript=no \
  -serial stdio -display none

  The typical way from the internet to disable App Nap doesn't work:
  defaults write NSGlobalDomain NSAppSleepDisabled -bool YES

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1923648/+subscriptions


^ permalink raw reply	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2021-05-17 19:24 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-04-13 17:47 [Bug 1923648] [NEW] macOS App Nap feature gradually freezes QEMU process Vasiliy Nikonov
2021-05-15 10:22 ` [Bug 1923648] " Thomas Huth
2021-05-17 17:38 ` Vasiliy Nikonov
2021-05-17 18:39 ` Thomas Huth

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