date:20160717

[Intel-gfx] [Regression report] Weekly regression report WW29

2016-07-17 Thread Jairo Miramontes


This week's regressions
+---+---+++
| BugId | Summary   | Created on | 
Bisect |

+---+---+++
| 96938 | [HSW modeset regression] i915/drm locks up wh | 2016-07-15 | 
No |
| 96916 | Regression: screen flashes with PSR enabled   | 2016-07-13 | 
No |

+---+---+++


Previous Regressions
+---+---+++
| BugId | Summary   | Created on | 
Bisect |

+---+---+++
| 90112 | [BSW bisected] OglGSCloth/Lightsmark/CS/ Port | 2015-04-20 | 
Yes|
| 94590 | [KBL/BXT] igt/kms_fbcon_fbt/psr-suspend regre | 2016-03-17 | 
No |
| 93263 | 945GM regression since 4.3| 2015-12-05 | 
No |
| 72782 | [945GM bisected] screen blank on S3 resume on | 2013-12-17 | 
Yes|
| 92414 | [Intel-gfx] As of kernel 4.3-rc1 system will  | 2015-10-10 | 
Yes|
| 92050 | [regression]/bug introduced by commit [0e572f | 2015-09-19 | 
No |
| 93393 | Regression for Skylake modesetting in kernel  | 2015-12-16 | 
No |
| 93802 | [IVB bisected] switching to tty1 causes fifo  | 2016-01-20 | 
Yes|
| 95197 | [i915] regression in 4.6-rc5: GPU HANG: ecode | 2016-04-28 | 
No |
| 94587 | [KBL] igt/kms_plane/plane-panning-bottom-righ | 2016-03-17 | 
No |
| 96800 | [regression] The drm-intel-nightly branch no  | 2016-07-04 | 
No |
| 95736 | [IVB bisected] *ERROR* uncleared fifo underru | 2016-05-24 | 
Yes|
| 89728 | [HSW/BDW/BYT bisected] igt / pm_rps / reset f | 2015-03-23 | 
Yes|
| 89629 | [i965 regression]igt/kms_rotation_crc/sprite- | 2015-03-18 | 
No |
| 92502 | [SKL] [Regression] igt/kms_flip/2x-flip-vs-ex | 2015-10-16 | 
No |
| 84855 | [ILK regression]igt kms_rotation_crc/sprite-r | 2014-10-10 | 
No |
| 87131 | [PNV regression] igt/gem_exec_lut_handle take | 2014-12-09 | 
No |
| 87726 | [BDW Bisected] OglDrvCtx performance reduced  | 2014-12-26 | 
Yes|
| 91974 | [bisected] unrecoverable black screen after k | 2015-09-11 | 
Yes|
| 96645 | [regression 4.7] [BISECT]Low package c-states | 2016-06-22 | 
Yes|
| 94430 | [HSW+nvidia] regression: display becomes "dis | 2016-03-07 | 
No |
| 93971 | video framerate performance regression with U | 2016-02-02 | 
No |
| 89872 | [ HSW Bisected ] VGA was white screen when re | 2015-04-02 | 
Yes|
| 96428 | [IVB bisected] [drm:intel_dp_aux_ch] *ERROR*  | 2016-06-07 | 
Yes|
| 91959 | [865g Linux regression] GPU hang and disabled | 2015-09-10 | 
No |
| 95097 | [hdmi regression ilk] no signal to TV | 2016-04-24 | 
No |
| 89334 | [945 regression] 4.0-rc1 kernel GPU hang:  ec | 2015-02-26 | 
No |
| 94748 | Black screen on Skylake (mouse position relat | 2016-03-29 | 
No |
| 92972 | Black screen on Intel NUC hardware (i915) pos | 2015-11-16 | 
No |
| 87725 | [BDW Bisected] OglBatch7 performance reduced  | 2014-12-26 | 
Yes|
| 94676 | Possible kernel regression for gen3 and earli | 2016-03-23 | 
No |
| 94337 | Linux 4.5 regression: FIFO underruns on Skyla | 2016-02-29 | 
No |
| 90368 | [SNB BSW SKL BXT KBL] bisected igt/kms_3d has | 2015-05-08 | 
Yes|
| 94588 | [KBL/BSW/BXT] igt/gem_reloc_overflow regressi | 2016-03-17 | 
No |
| 96736 | kernel 4.6 regression: PSR causes screen to f | 2016-06-29 | 
No |
| 90732 | [BDW/BSW Bisected]igt/gem_reloc_vs_gpu/forked | 2015-05-29 | 
Yes|
| 90134 | [BSW Bisected]GFXBench3_gl_driver/GFXBench3_g | 2015-04-22 | 
Yes|
| 96704 | kernel 4.6 regression: PSR on Haswell causes  | 2016-06-28 | 
No |
| 93782 | [i9xx TV][BISECT] vblank wait timeout on crtc | 2016-01-19 | 
Yes|
| 89632 | [i965 regression]igt/kms_universal_plane/univ | 2015-03-18 | 
No |
| 88439 | [BDW Bisected]igt/gem_reloc_vs_gpu/forked-fau | 2015-01-15 | 
Yes|
| 92237 | [SNB]Horrible noise (audio) via DisplayPort [ | 2015-10-02 | 
No |
| 93122 | [SNB BAT IGT regression] pm_rpm started skipp | 2015-11-26 | 
No |

+---+---+++
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[Intel-gfx] [Regression report] Weekly regression report WW29

2016-07-17 Thread Jairo Miramontes



This week's new regressions

+---+---+++
| BugId | Summary   | Created on | 
Bisect |

+---+---+++
| 96938 | [HSW modeset regression] i915/drm locks up wh | 2016-07-15 | 
No |
| 96916 | Regression: screen flashes with PSR enabled   | 2016-07-13 | 
No |

+---+---+++

Previous regressions
+---+---+++
| BugId | Summary   | Created on | 
Bisect |

+---+---+++
| 90112 | [BSW bisected] OglGSCloth/Lightsmark/CS/ Port | 2015-04-20 | 
Yes|
| 94590 | [KBL/BXT] igt/kms_fbcon_fbt/psr-suspend regre | 2016-03-17 | 
No |
| 93263 | 945GM regression since 4.3| 2015-12-05 | 
No |
| 72782 | [945GM bisected] screen blank on S3 resume on | 2013-12-17 | 
Yes|
| 92414 | [Intel-gfx] As of kernel 4.3-rc1 system will  | 2015-10-10 | 
Yes|
| 92050 | [regression]/bug introduced by commit [0e572f | 2015-09-19 | 
No |
| 93393 | Regression for Skylake modesetting in kernel  | 2015-12-16 | 
No |
| 93802 | [IVB bisected] switching to tty1 causes fifo  | 2016-01-20 | 
Yes|
| 95197 | [i915] regression in 4.6-rc5: GPU HANG: ecode | 2016-04-28 | 
No |
| 94587 | [KBL] igt/kms_plane/plane-panning-bottom-righ | 2016-03-17 | 
No |
| 96800 | [regression] The drm-intel-nightly branch no  | 2016-07-04 | 
No |
| 95736 | [IVB bisected] *ERROR* uncleared fifo underru | 2016-05-24 | 
Yes|
| 89728 | [HSW/BDW/BYT bisected] igt / pm_rps / reset f | 2015-03-23 | 
Yes|
| 89629 | [i965 regression]igt/kms_rotation_crc/sprite- | 2015-03-18 | 
No |
| 92502 | [SKL] [Regression] igt/kms_flip/2x-flip-vs-ex | 2015-10-16 | 
No |
| 84855 | [ILK regression]igt kms_rotation_crc/sprite-r | 2014-10-10 | 
No |
| 87131 | [PNV regression] igt/gem_exec_lut_handle take | 2014-12-09 | 
No |
| 87726 | [BDW Bisected] OglDrvCtx performance reduced  | 2014-12-26 | 
Yes|
| 91974 | [bisected] unrecoverable black screen after k | 2015-09-11 | 
Yes|
| 96645 | [regression 4.7] [BISECT]Low package c-states | 2016-06-22 | 
Yes|
| 94430 | [HSW+nvidia] regression: display becomes "dis | 2016-03-07 | 
No |
| 93971 | video framerate performance regression with U | 2016-02-02 | 
No |
| 89872 | [ HSW Bisected ] VGA was white screen when re | 2015-04-02 | 
Yes|
| 96428 | [IVB bisected] [drm:intel_dp_aux_ch] *ERROR*  | 2016-06-07 | 
Yes|
| 91959 | [865g Linux regression] GPU hang and disabled | 2015-09-10 | 
No |
| 95097 | [hdmi regression ilk] no signal to TV | 2016-04-24 | 
No |
| 89334 | [945 regression] 4.0-rc1 kernel GPU hang:  ec | 2015-02-26 | 
No |
| 94748 | Black screen on Skylake (mouse position relat | 2016-03-29 | 
No |
| 92972 | Black screen on Intel NUC hardware (i915) pos | 2015-11-16 | 
No |
| 87725 | [BDW Bisected] OglBatch7 performance reduced  | 2014-12-26 | 
Yes|
| 94676 | Possible kernel regression for gen3 and earli | 2016-03-23 | 
No |
| 94337 | Linux 4.5 regression: FIFO underruns on Skyla | 2016-02-29 | 
No |
| 90368 | [SNB BSW SKL BXT KBL] bisected igt/kms_3d has | 2015-05-08 | 
Yes|
| 94588 | [KBL/BSW/BXT] igt/gem_reloc_overflow regressi | 2016-03-17 | 
No |
| 96736 | kernel 4.6 regression: PSR causes screen to f | 2016-06-29 | 
No |
| 90732 | [BDW/BSW Bisected]igt/gem_reloc_vs_gpu/forked | 2015-05-29 | 
Yes|
| 90134 | [BSW Bisected]GFXBench3_gl_driver/GFXBench3_g | 2015-04-22 | 
Yes|
| 96704 | kernel 4.6 regression: PSR on Haswell causes  | 2016-06-28 | 
No |
| 93782 | [i9xx TV][BISECT] vblank wait timeout on crtc | 2016-01-19 | 
Yes|
| 89632 | [i965 regression]igt/kms_universal_plane/univ | 2015-03-18 | 
No |
| 88439 | [BDW Bisected]igt/gem_reloc_vs_gpu/forked-fau | 2015-01-15 | 
Yes|
| 92237 | [SNB]Horrible noise (audio) via DisplayPort [ | 2015-10-02 | 
No |
| 93122 | [SNB BAT IGT regression] pm_rpm started skipp | 2015-11-26 | 
No |

+---+---+++

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Re: [Intel-gfx] [rfc PATCH] drm/i915: Simplify shrinker_lock

2016-07-17 Thread Chris Wilson

On Sun, Jul 17, 2016 at 11:45:44AM -0700, Davidlohr Bueso wrote:
> In addition, we can simplify the overall function wrt (2), by first
> checking if we are the lock owner, then address the trylock and
> deal with (2) if locked/contended by a traditional mutex_lock().
> This should be safe considering that if current is the lock owner,
> then we are guaranteed not to race with the counter->owner updates
> (the counter is updated first which sets the mutex to be visibly locked).

However, that is then subject to an indirect ABBA deadlock, between the
shrinker lock and the struct mutex (or at least that used to be the case
where the kswapd reclaim would be blocked on the mutex and an alloc
blocked on kswapd).

Unravelling the gross locking is an ongoing task, with one of the chief
goals being able to reclaim memory whenever required. It is not pretty
and often fails under pressure.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre
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Re: [Intel-gfx] [PATCH v5] drm/i915: Use SSE4.1 movntdqa to accelerate reads from WC memory

2016-07-17 Thread Chris Wilson

On Sat, Jul 16, 2016 at 08:21:59PM -0700, Matt Turner wrote:
> On Sat, Jul 16, 2016 at 8:44 AM, Chris Wilson  
> wrote:
> > +#ifdef CONFIG_AS_MOVNTDQA
> > +static void __movntqda(void *dst, const void *src, unsigned long len)
> 
> Many times, you've spelled this movntqda but the instruction mnemonic
> is movntdqa (as seen below). I'm not sure if I'm missing something, or
> if this typo has somehow slipped in so many times, including in the
> commit message.

I know, my fingers just do not accept that it should be ntdqa. And
because the beginning/end of the word is correct, the transposition in
the middle is invisible when skimming over it.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre
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[Intel-gfx] [Regression report] Weekly regression report WW29

[Intel-gfx] [Regression report] Weekly regression report WW29

Re: [Intel-gfx] [rfc PATCH] drm/i915: Simplify shrinker_lock

Re: [Intel-gfx] [PATCH v5] drm/i915: Use SSE4.1 movntdqa to accelerate reads from WC memory

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