Re: "flip_done timed out" messages causing huge increase in boot time
I submitted the bug report at
https://bugs.freedesktop.org/show_bug.cgi?id=109245 . The dmesg log is
attached to the bug report.
Daniel
On Mon, 7 Jan 2019 at 14:34, Ville Syrjälä
wrote:
>
> On Sat, Jan 05, 2019 at 12:47:12AM +0100, Daniel Kamil Kozar wrote:
> > Hello.
> > After upgrading the kernel to 4.20, I noticed that the boot time
> > increased from about 5 seconds to 25 seconds. My machine is an Asus
> > K53SV with an Intel i7-2630QM, i.e. Sandy Bridge. I have an external
> > display connected to it via HDMI. If the display is unplugged when
> > booting the machine, the boot time stays at its old value.
> > The kernel log shows two messages like this :
> >
> > [ 15.747206] [drm:drm_atomic_helper_wait_for_flip_done
> > [drm_kms_helper]] *ERROR* [CRTC:39:pipe A] flip_done timed out
> > [ 26.198968] [drm:drm_atomic_helper_wait_for_dependencies
> > [drm_kms_helper]] *ERROR* [CRTC:39:pipe A] flip_done timed out
>
> Hrm. With SNB I would be tempted to blame the LP3 watermarks, but
> 4.20 already has commit 21556350ade3 ("drm/i915: Disable LP3 watermarks
> on all SNB machines").
>
> Can you file a bug at
> https://bugs.freedesktop.org/enter_bug.cgi?product=DRI=DRM/Intel
> and attach the full dmesg from the boot with drm.debug=0xe passed to the
> kernel cmdline?
>
> --
> Ville Syrjälä
> Intel
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Re: "flip_done timed out" messages causing huge increase in boot time
On Sat, Jan 05, 2019 at 12:47:12AM +0100, Daniel Kamil Kozar wrote:
> Hello.
> After upgrading the kernel to 4.20, I noticed that the boot time
> increased from about 5 seconds to 25 seconds. My machine is an Asus
> K53SV with an Intel i7-2630QM, i.e. Sandy Bridge. I have an external
> display connected to it via HDMI. If the display is unplugged when
> booting the machine, the boot time stays at its old value.
> The kernel log shows two messages like this :
>
> [ 15.747206] [drm:drm_atomic_helper_wait_for_flip_done
> [drm_kms_helper]] *ERROR* [CRTC:39:pipe A] flip_done timed out
> [ 26.198968] [drm:drm_atomic_helper_wait_for_dependencies
> [drm_kms_helper]] *ERROR* [CRTC:39:pipe A] flip_done timed out
Hrm. With SNB I would be tempted to blame the LP3 watermarks, but
4.20 already has commit 21556350ade3 ("drm/i915: Disable LP3 watermarks
on all SNB machines").
Can you file a bug at
https://bugs.freedesktop.org/enter_bug.cgi?product=DRI=DRM/Intel
and attach the full dmesg from the boot with drm.debug=0xe passed to the
kernel cmdline?
--
Ville Syrjälä
Intel
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Re: "flip_done timed out" messages causing huge increase in boot time
Small omission on my part : I meant 4.19.12, not 4.19.2 as the last working version. Also, I can confirm that reverting 13947d150bae871bd880565ada318b0bcd0e690e from the current HEAD of linux-stable fixes the issue. On Sat, 5 Jan 2019 at 00:47, Daniel Kamil Kozar wrote: > > Hello. > After upgrading the kernel to 4.20, I noticed that the boot time > increased from about 5 seconds to 25 seconds. My machine is an Asus > K53SV with an Intel i7-2630QM, i.e. Sandy Bridge. I have an external > display connected to it via HDMI. If the display is unplugged when > booting the machine, the boot time stays at its old value. > The kernel log shows two messages like this : > > [ 15.747206] [drm:drm_atomic_helper_wait_for_flip_done > [drm_kms_helper]] *ERROR* [CRTC:39:pipe A] flip_done timed out > [ 26.198968] [drm:drm_atomic_helper_wait_for_dependencies > [drm_kms_helper]] *ERROR* [CRTC:39:pipe A] flip_done timed out > > Which are the only ones that don't appear in 4.19.2, where the boot > time was smaller. Bisecting the commits between these two versions > leads to commit 516a49cc19467e298d08a404f73a6e311f4548d1. > > Let me know if you need more information. > > Kind regards, > Daniel ___ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel
Re: "flip_done timed out" messages causing huge increase in boot time
I should really get to bed ... of course, I meant 516a49cc19467e298d08a404f73a6e311f4548d1 ;-) On Sat, 5 Jan 2019 at 01:16, Daniel Kamil Kozar wrote: > > Small omission on my part : I meant 4.19.12, not 4.19.2 as the last > working version. > Also, I can confirm that reverting > 13947d150bae871bd880565ada318b0bcd0e690e from the current HEAD of > linux-stable fixes the issue. > > On Sat, 5 Jan 2019 at 00:47, Daniel Kamil Kozar wrote: > > > > Hello. > > After upgrading the kernel to 4.20, I noticed that the boot time > > increased from about 5 seconds to 25 seconds. My machine is an Asus > > K53SV with an Intel i7-2630QM, i.e. Sandy Bridge. I have an external > > display connected to it via HDMI. If the display is unplugged when > > booting the machine, the boot time stays at its old value. > > The kernel log shows two messages like this : > > > > [ 15.747206] [drm:drm_atomic_helper_wait_for_flip_done > > [drm_kms_helper]] *ERROR* [CRTC:39:pipe A] flip_done timed out > > [ 26.198968] [drm:drm_atomic_helper_wait_for_dependencies > > [drm_kms_helper]] *ERROR* [CRTC:39:pipe A] flip_done timed out > > > > Which are the only ones that don't appear in 4.19.2, where the boot > > time was smaller. Bisecting the commits between these two versions > > leads to commit 516a49cc19467e298d08a404f73a6e311f4548d1. > > > > Let me know if you need more information. > > > > Kind regards, > > Daniel ___ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel
