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On 2015-02-25T14:06:57+00:00 SakariK wrote:

Created attachment 113816
dmesg.log which shows the warnings

This has been discussed in http://lists.freedesktop.org/archives/intel-
gfx/2015-February/059291.html , filing it here so it can be better
tracked.

Beginning with kernel 3.19-rc1, there are warnings generated by the i915
from the function intel_check_page_flip. A dmesg log from boot to the
problem with `drm.debug=13` is attached. This only happens when booting
with threaded IRQs enabled by the `threadirqs` kernel flag.

As pointed out on the mailing lists, this is probably caused because
in_irq() only tests for real hardware interrupts, not threaded ones.
Further information here: http://lists.freedesktop.org/archives/intel-
gfx/2015-February/059623.html

Kernel: 3.19-rc1
Distro: Arch Linux
Machine: Asus Zenbook UX32VD (Intel HD4000 graphics)

Reply at: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-
intel/+bug/1430230/comments/0

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On 2015-03-10T17:04:36+00:00 Jani-nikula wrote:

Fixed by

commit 6c51d46f135b00c00373fcd029786ccef2b02b5b
Author: Dave Gordon <[email protected]>
Date:   Fri Mar 6 15:34:26 2015 +0000

    drm/i915: use in_interrupt() not in_irq() to check context

in drm-intel-fixes. Thanks for the report.

Reply at: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-
intel/+bug/1430230/comments/3


** Changed in: xserver-xorg-video-intel
       Status: Unknown => Fix Released

** Changed in: xserver-xorg-video-intel
   Importance: Unknown => Low

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Title:
  Log flooding with warning message when using linux-lowlatency kernel

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