Closing as issue fixed
** Changed in: hundredpapercuts
Status: Confirmed => Fix Released
** Changed in: hundredpapercuts
Status: Fix Released => Invalid
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Franck, this bug report is being closed due to your last comment
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-
intel/+bug/1430230/comments/10 regarding this being fixed with an
update. For future reference you can manage the status of your own bugs
by clicking on the current status
It seems to be fixed as of version 2:2.99.917-1~exp1ubuntu2.1 of
xserver-xorg-vieo-intel. I don't get the warnings anymore, be it with
threadirqs parameter and generic kernel, or with lowlatency kernel.
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Bugs, which is
Hope this can land in Vivid.
Not using thread irqs certainly works this bug around, but then playing audio
on bluetooth is at best flaky !
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https://bugs.launchpad.net/bugs/1430230
This is a kernel bug, rather than anything else. See
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6c51d46f135b00c00373fcd029786ccef2b02b5b
A workaround is to boot with ‘nothreadirqs’ in the kernel command line.
** Also affects: linux-meta-lowlatency (Ubuntu)
Yes, it isn’t ideal and sort of defeats the ‘low latency’ object, but
it’s better than having your SSD thwacked (one of these writes to the
log per second also adds up in terms of CPU activity).
As the patch is just a one-liner, which allows execution in both soft
and hard interrupt contexts
I'm not really entitled to make any suggestion, but One hundred
papercuts / importance low seems a little bit understated to me: this is
literally flooding the log, resulting in system slowdown, unusable logs
and intense disk activity (bye SSDs).
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I have this exact same problem. My computer logs :
WARNING: CPU: 3 PID: 659 at
/build/buildd/linux-3.19.0/drivers/gpu/drm/i915/intel_display.c:9705
intel_check_page_flip+0xa2/0xf0 [i915]()
WARN_ON(!in_irq())
continually with the 3.19.0-7 and 3.19.0-8 kernels in the -lowlatency kind.
It
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: xserver-xorg-video-intel (Ubuntu)
Status: New = Confirmed
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** Also affects: xserver-xorg-video-intel via
https://bugs.freedesktop.org/show_bug.cgi?id=89321
Importance: Unknown
Status: Unknown
** Changed in: xserver-xorg-video-intel (Ubuntu)
Importance: Undecided = Low
** Also affects: hundredpapercuts
Importance: Undecided
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