Bug 81377

Summary: [IVB/BDW Bisected]igt/kms_mmio_vs_cs_flip/setcrtc_vs_cs_flip fails
Product: DRI Reporter: Guo Jinxian <jinxianx.guo>
Component: DRM/IntelAssignee: Paulo Zanoni <przanoni>
Status: CLOSED FIXED QA Contact: Intel GFX Bugs mailing list <intel-gfx-bugs>
Severity: normal    
Priority: highest CC: intel-gfx-bugs, przanoni
Version: unspecified   
Hardware: Other   
OS: All   
Whiteboard:
i915 platform: i915 features:
Attachments:
Description Flags
dmesg none

Description Guo Jinxian 2014-07-15 08:50:44 UTC 
Created attachment 102844 [details]
dmesg

==System Environment==
--------------------------
Regression: Yes
Here has a bug 79290 on -next-queued(d3b448d9917a3d6531e499d88bfb13ea5e31e4ad)

Non-working platforms: BSW

==kernel==
--------------------------
origin/drm-intel-nightly: 2a38e1bcd4dc9523cd723291340226d139bece1b(fails)
    drm-intel-nightly: 2014y-07m-14d-23h-18m-30s integration manifest
origin/drm-intel-next-queued: ebcdf5276e6e2ddef6a4fd7716684030301a6fed(fails)
    drm/i915: Handle failure to kick out a conflicting fb driver
origin/drm-intel-fixes: c6930992948adf0f8fc1f6ff1da51c5002a2cf95(fails)
    Revert "drm/i915: reverse dp link param selection, prefer fast over wide again"

==Bug detailed description==
igt/kms_mmio_vs_cs_flip/setcrtc_vs_cs_flip fails

Output:
[root@x-ivb9 tests]# ./kms_mmio_vs_cs_flip --run-subtest setcrtc_vs_cs_flip
IGT-Version: 1.7-g3f50598 (x86_64) (Linux: 3.16.0-rc4_drm-intel-next-queued_ebcdf5_20140715+ x86_64)
Test assertion failure function igt_wait_for_vblank, file igt_kms.c:1475:
Failed assertion: drmWaitVBlank(drm_fd, &wait_vbl) == 0
Last errno: 16, Device or resource busy
Subtest setcrtc_vs_cs_flip: FAIL

==Reproduce steps==
---------------------------- 
1. ./kms_mmio_vs_cs_flip --run-subtest setcrtc_vs_cs_flip
Comment 1 Guo Jinxian 2014-07-15 08:51:51 UTC 
igt/kms_plane/plane-position-covered-pipe-C-plane-1 has the same issue

[root@x-ivb9 tests]# ./kms_plane --run-subtest plane-position-covered-pipe-C-plane-1
IGT-Version: 1.7-g3f50598 (x86_64) (Linux: 3.16.0-rc4_drm-intel-next-queued_ebcdf5_20140715+ x86_64)
Testing connector VGA-1 using pipe C plane 1
Testing connector DP-2 using pipe C plane 1
Test assertion failure function igt_wait_for_vblank, file igt_kms.c:1475:
Failed assertion: drmWaitVBlank(drm_fd, &wait_vbl) == 0
Last errno: 16, Device or resource busy
Subtest plane-position-covered-pipe-C-plane-1: FAIL
Comment 2 Guo Jinxian 2014-07-25 02:27:20 UTC 
This bug still able to reproduce on BDW while running subcase of igt/kms_plane

root@x-bdw05:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# ./kms_plane --run-subtest plane-position-covered-pipe-B-plane-1
IGT-Version: 1.7-gbffef22 (x86_64) (Linux: 3.16.0-rc6_drm-intel-nightly_af1aab_20140724+ x86_64)
Testing connector eDP-1 using pipe B plane 1
Test assertion failure function igt_wait_for_vblank, file igt_kms.c:1475:
Failed assertion: drmWaitVBlank(drm_fd, &wait_vbl) == 0
Last errno: 16, Device or resource busy
Subtest plane-position-covered-pipe-B-plane-1: FAIL

root@x-bdw05:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# ./kms_pipe_crc_basic --run-subtest read-crc-pipe-B
IGT-Version: 1.7-gbffef22 (x86_64) (Linux: 3.16.0-rc6_drm-intel-nightly_af1aab_20140724+ x86_64)
read-crc-pipe-B: Testing connector eDP-1 using pipe B
Test assertion failure function igt_wait_for_vblank, file igt_kms.c:1475:
Failed assertion: drmWaitVBlank(drm_fd, &wait_vbl) == 0
Last errno: 16, Device or resource busy
Subtest read-crc-pipe-B: FAIL
Comment 3 liulei 2014-07-29 06:45:38 UTC 
==Bisect results==
----------------------------
Bisect shows: d49bdb0e1054d022cc6f88fcecf9c79bae66eab0 is the first bad commit
commit d49bdb0e1054d022cc6f88fcecf9c79bae66eab0
Author:     Paulo Zanoni <paulo.r.zanoni@intel.com>
AuthorDate: Fri Jul 4 11:50:31 2014 -0300
Commit:     Daniel Vetter <daniel.vetter@ffwll.ch>
CommitDate: Wed Jul 23 07:05:32 2014 +0200

    drm/i915: extract and improve gen8_irq_power_well_post_enable

    Move it from hsw_power_well_post_enable() (intel_pm.c) to i915_irq.c
    so we can reuse the nice IRQ macros we have there. The main difference
    is that now we're going to check if the IIR register is non-zero when
    we try to re-enable the interrupts.
Comment 4 Guo Jinxian 2014-08-08 05:33:57 UTC 
This fail still able to reproduce while running test igt/kms_rotation_crc/sprite-rotation

[root@x-bdw01 tests]# ./kms_rotation_crc --run-subtest sprite-rotation
IGT-Version: 1.7-g17d63e4 (x86_64) (Linux: 3.16.0_drm-intel-nightly_79e44b_20140806+ x86_64)
Test assertion failure function igt_wait_for_vblank, file igt_kms.c:1480:
Failed assertion: drmWaitVBlank(drm_fd, &wait_vbl) == 0
Last errno: 16, Device or resource busy
Subtest sprite-rotation: FAIL
Comment 5 Guo Jinxian 2014-08-15 06:00:36 UTC 
This bug still able to reproduce on BDW on latest -nightly(2b6e6b9c29dbdaf596cad99877384af8b406d103) while running tests below

igt/kms_pipe_crc_basic/read-crc-pipe-B
igt/kms_pipe_crc_basic/read-crc-pipe-B-frame-sequence
igt/kms_pipe_crc_basic/read-crc-pipe-C
igt/kms_pipe_crc_basic/read-crc-pipe-C-frame-sequence
igt/kms_plane/plane-panning-bottom-right-pipe-B-plane-1
igt/kms_plane/plane-panning-bottom-right-pipe-B-plane-2
igt/kms_plane/plane-panning-bottom-right-pipe-C-plane-1
igt/kms_plane/plane-panning-bottom-right-pipe-C-plane-2
igt/kms_plane/plane-panning-top-left-pipe-B-plane-1
igt/kms_plane/plane-panning-top-left-pipe-B-plane-2
igt/kms_plane/plane-panning-top-left-pipe-C-plane-1
igt/kms_plane/plane-panning-top-left-pipe-C-plane-2
igt/kms_plane/plane-position-covered-pipe-B-plane-1
igt/kms_plane/plane-position-covered-pipe-B-plane-2
igt/kms_plane/plane-position-covered-pipe-C-plane-1
igt/kms_plane/plane-position-covered-pipe-C-plane-2
igt/kms_plane/plane-position-hole-pipe-B-plane-1
igt/kms_plane/plane-position-hole-pipe-B-plane-2
igt/kms_plane/plane-position-hole-pipe-C-plane-1
igt/kms_plane/plane-position-hole-pipe-C-plane-2
igt/kms_universal_plane/disable-primary-vs-flip-pipe-B
igt/kms_universal_plane/disable-primary-vs-flip-pipe-C
igt/kms_universal_plane/universal-plane-pipe-B-functional
igt/kms_universal_plane/universal-plane-pipe-B-sanity
igt/kms_universal_plane/universal-plane-pipe-C-functional
igt/kms_universal_plane/universal-plane-pipe-C-sanity

Output:
root@x-bdw05:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# ./kms_universal_plane --run-subtest disable-primary-vs-flip-pipe-B
IGT-Version: 1.7-g5c7bcb1 (x86_64) (Linux: 3.16.0_drm-intel-nightly_2b6e6b_20140815+ x86_64)
Test assertion failure function igt_wait_for_vblank, file igt_kms.c:1582:
Failed assertion: drmWaitVBlank(drm_fd, &wait_vbl) == 0
Last errno: 16, Device or resource busy
Subtest disable-primary-vs-flip-pipe-B: FAIL
Comment 6 Guo Jinxian 2014-08-28 06:38:28 UTC 
Test failed while running test igt/kms_flip_event_leak on BDW

root@x-bdw05:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# ./kms_flip_event_leak
IGT-Version: 1.7-g50166d2 (x86_64) (Linux: 3.17.0-rc2_drm-intel-nightly_e91331_20140828+ x86_64)
Test assertion failure function igt_wait_for_vblank, file igt_kms.c:1597:
Failed assertion: drmWaitVBlank(drm_fd, &wait_vbl) == 0
Last errno: 16, Device or resource busy
Comment 7 Imre Deak 2014-09-19 15:35:29 UTC 
Could you retest with latest -nightly? The following could fix this:

commit d6bbafa183793537d8dca4d4c2e448805e59448a
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date:   Fri Sep 5 07:13:24 2014 +0100

    drm/i915: Check for a stalled page flip after each vblank
    

and

commit 9c787942907face82da505c2c5493998b56cfc5a
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date:   Fri Sep 5 07:13:25 2014 +0100

    drm/i915: Decouple the stuck pageflip on modeset
Comment 8 Guo Jinxian 2014-09-25 07:07:01 UTC 
(In reply to comment #7)
> Could you retest with latest -nightly? The following could fix this:
> 
> commit d6bbafa183793537d8dca4d4c2e448805e59448a
> Author: Chris Wilson <chris@chris-wilson.co.uk>
> Date:   Fri Sep 5 07:13:24 2014 +0100
> 
>     drm/i915: Check for a stalled page flip after each vblank
>     
> 
> and
> 
> commit 9c787942907face82da505c2c5493998b56cfc5a
> Author: Chris Wilson <chris@chris-wilson.co.uk>
> Date:   Fri Sep 5 07:13:25 2014 +0100
> 
>     drm/i915: Decouple the stuck pageflip on modeset


The failure unable to reproduce on IVB

[root@x-ivb9 tests]# ./kms_mmio_vs_cs_flip --run-subtest setcrtc_vs_cs_flip
IGT-Version: 1.8-g4b81e9c (x86_64) (Linux: 3.17.0-rc6_drm-intel-nightly_1c38db_20140924_debug+ x86_64)
Subtest setcrtc_vs_cs_flip: SUCCESS (2.606s)

 
But still able to reproduce on BDW

root@x-bdw05:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# ./kms_mmio_vs_cs_flip --run-subtest setcrtc_vs_cs_flip
IGT-Version: 1.7-g5f16ef6 (x86_64) (Linux: 3.17.0-rc6_drm-intel-nightly_0f7cc1_20140925+ x86_64)
Test assertion failure function igt_wait_for_vblank, file igt_kms.c:1597:
Failed assertion: drmWaitVBlank(drm_fd, &wait_vbl) == 0
Last errno: 16, Device or resource busy
Subtest setcrtc_vs_cs_flip: FAIL
Comment 9 Chris Wilson 2014-09-25 07:13:23 UTC 
The pipe's dead, it will flip no more until we reset it with a modeset:

[  133.193563] [drm:intel_dp_set_signal_levels] Using signal levels 00000000
[  133.200190] [drm:drm_dp_dpcd_access] too many retries, giving up
[  133.200191] [drm:intel_dp_start_link_train] *ERROR* failed to enable link training
[  133.206824] [drm:drm_dp_dpcd_access] too many retries, giving up
[  133.206825] [drm:intel_dp_complete_link_train] *ERROR* failed to start channel equalization
[  133.222769] [drm:cpt_verify_modeset] *ERROR* mode set failed: pipe B stuck
[  133.222772] [drm:intel_update_fbc] more than one pipe active, disabling compression
[  133.222778] [drm:intel_connector_check_state] [CONNECTOR:16:VGA-1]
[  133.222783] [drm:check_encoder_state] [ENCODER:17:DAC-17]
[  133.222786] [drm:check_encoder_state] [ENCODER:18:TMDS-18]
[  133.222787] [drm:check_encoder_state] [ENCODER:22:TMDS-22]
[  133.222789] [drm:check_encoder_state] [ENCODER:24:TMDS-24]
[  133.222790] [drm:check_encoder_state] [ENCODER:26:TMDS-26]
[  133.222792] ------------[ cut here ]------------
[  133.222801] WARNING: CPU: 0 PID: 3822 at drivers/gpu/drm/i915/intel_display.c:10529 intel_modeset_check_state+0x2fa/0x5eb [i915]()
[  133.222801] encoder's hw state doesn't match sw tracking (expected 1, found 0)
[  133.222807] Modules linked in: dm_mod snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic iTCO_wdt iTCO_vendor_support dcdbas pcspkr serio_raw i2c_i801 snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm lpc_ich mfd_core snd_timer snd soundcore battery tpm_tis tpm acpi_cpufreq i915 video button drm_kms_helper drm
[  133.222809] CPU: 0 PID: 3822 Comm: kms_mmio_vs_cs_ Tainted: G        W     3.16.0-rc4_drm-intel-next-queued_ebcdf5_20140715+ #522
[  133.222810] Hardware name: Dell Inc. OptiPlex 9010/03JR84, BIOS A01 05/04/2012
[  133.222811]  0000000000000000 0000000000000009 ffffffff817803ed ffff880002e0b928
[  133.222812]  ffffffff8103986c ffff880002e0b920 ffffffffa00b15d0 0000000000000297
[  133.222812]  ffff880114203800 ffff88011850f000 0000000000000000 ffff88011850f308
[  133.222813] Call Trace:
[  133.222815]  [<ffffffff817803ed>] ? dump_stack+0x41/0x51
[  133.222816]  [<ffffffff8103986c>] ? warn_slowpath_common+0x78/0x90
[  133.222822]  [<ffffffffa00b15d0>] ? intel_modeset_check_state+0x2fa/0x5eb [i915]
[  133.222824]  [<ffffffff8103991c>] ? warn_slowpath_fmt+0x45/0x4a
[  133.222831]  [<ffffffffa00ab800>] ? __intel_set_mode+0x10e5/0x127b [i915]
[  133.222836]  [<ffffffffa00b15d0>] ? intel_modeset_check_state+0x2fa/0x5eb [i915]
[  133.222841]  [<ffffffffa00b18de>] ? intel_set_mode+0x1d/0x27 [i915]
[  133.222847]  [<ffffffffa00b24ab>] ? intel_crtc_set_config+0x705/0xa5b [i915]
[  133.222852]  [<ffffffffa000bf3b>] ? drm_mode_set_config_internal+0x4b/0xb3 [drm]
[  133.222854]  [<ffffffffa004bf94>] ? restore_fbdev_mode+0x8f/0xa8 [drm_kms_helper]
[  133.222855]  [<ffffffffa004bfca>] ? drm_fb_helper_restore_fbdev_mode_unlocked+0x1d/0x34 [drm_kms_helper]
[  133.222857]  [<ffffffffa004d1e2>] ? drm_fb_helper_set_par+0x39/0x58 [drm_kms_helper]
[  133.222863]  [<ffffffffa00bb400>] ? intel_fbdev_set_par+0x11/0x55 [i915]
[  133.222865]  [<ffffffff8136d4e5>] ? fb_set_var+0x246/0x32c
[  133.222866]  [<ffffffff81105579>] ? kmem_cache_alloc_trace+0x2a/0xfc
[  133.222867]  [<ffffffff813a8b2e>] ? check_tty_count+0x1c/0x93
[  133.222868]  [<ffffffff813658ac>] ? fbcon_blank+0x71/0x230
[  133.222870]  [<ffffffff813bb360>] ? do_unblank_screen+0xef/0x169
[  133.222871]  [<ffffffff813b39b7>] ? vt_ioctl+0x4b0/0xf7f
[  133.222874]  [<ffffffffa0002f8c>] ? drm_ioctl+0x27a/0x3c0 [drm]
[  133.222875]  [<ffffffff813ac101>] ? tty_ioctl+0x8bc/0x92b
[  133.222877]  [<ffffffff81117c59>] ? do_filp_open+0x2d/0x75
[  133.222878]  [<ffffffff81119973>] ? do_vfs_ioctl+0x3ec/0x435
[  133.222879]  [<ffffffff8112145c>] ? __fd_install+0x15/0x43
[  133.222880]  [<ffffffff81119a05>] ? SyS_ioctl+0x49/0x78
[  133.222881]  [<ffffffff8109f1b0>] ? __audit_syscall_exit+0x209/0x225
[  133.222882]  [<ffffffff81785f92>] ? system_call_fastpath+0x16/0x1b
[  133.222883] ---[ end trace 1f369a48870428f8 ]---
[  133.222884] [drm:check_crtc_state] [CRTC:6]
[  133.222897] [drm:check_crtc_state] [CRTC:10]
[  133.222907] [drm:intel_pipe_config_compare] *ERROR* mismatch in has_dp_encoder (expected 1, found 0)
[  133.222907] ------------[ cut here ]------------
[  133.222914] WARNING: CPU: 0 PID: 3822 at drivers/gpu/drm/i915/intel_display.c:10601 check_crtc_state+0x8a5/0x8dd [i915]()
[  133.222914] pipe state doesn't match!
[  133.222920] Modules linked in: dm_mod snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic iTCO_wdt iTCO_vendor_support dcdbas pcspkr serio_raw i2c_i801 snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm lpc_ich mfd_core snd_timer snd soundcore battery tpm_tis tpm acpi_cpufreq i915 video button drm_kms_helper drm
[  133.222921] CPU: 0 PID: 3822 Comm: kms_mmio_vs_cs_ Tainted: G        W     3.16.0-rc4_drm-intel-next-queued_ebcdf5_20140715+ #522
[  133.222921] Hardware name: Dell Inc. OptiPlex 9010/03JR84, BIOS A01 05/04/2012
[  133.222922]  0000000000000000 0000000000000009 ffffffff817803ed ffff880002e0b658
[  133.222923]  ffffffff8103986c ffff880002e0b650 ffffffffa00a4e2a 0000000000000002
[  133.222924]  ffff880002db3000 ffff88011850f000 ffff880002e0b6e0 ffff880002db3700
[  133.222924] Call Trace:
[  133.222925]  [<ffffffff817803ed>] ? dump_stack+0x41/0x51
[  133.222927]  [<ffffffff8103986c>] ? warn_slowpath_common+0x78/0x90
[  133.222932]  [<ffffffffa00a4e2a>] ? check_crtc_state+0x8a5/0x8dd [i915]
[  133.222934]  [<ffffffff8103991c>] ? warn_slowpath_fmt+0x45/0x4a
[  133.222939]  [<ffffffffa00a4e2a>] ? check_crtc_state+0x8a5/0x8dd [i915]
[  133.222946]  [<ffffffffa00ab800>] ? __intel_set_mode+0x10e5/0x127b [i915]
[  133.222951]  [<ffffffffa00b1619>] ? intel_modeset_check_state+0x343/0x5eb [i915]
[  133.222957]  [<ffffffffa00b18de>] ? intel_set_mode+0x1d/0x27 [i915]
[  133.222962]  [<ffffffffa00b24ab>] ? intel_crtc_set_config+0x705/0xa5b [i915]
[  133.222966]  [<ffffffffa000bf3b>] ? drm_mode_set_config_internal+0x4b/0xb3 [drm]
[  133.222968]  [<ffffffffa004bf94>] ? restore_fbdev_mode+0x8f/0xa8 [drm_kms_helper]
[  133.222970]  [<ffffffffa004bfca>] ? drm_fb_helper_restore_fbdev_mode_unlocked+0x1d/0x34 [drm_kms_helper]
[  133.222972]  [<ffffffffa004d1e2>] ? drm_fb_helper_set_par+0x39/0x58 [drm_kms_helper]
[  133.222978]  [<ffffffffa00bb400>] ? intel_fbdev_set_par+0x11/0x55 [i915]
[  133.222979]  [<ffffffff8136d4e5>] ? fb_set_var+0x246/0x32c
[  133.222980]  [<ffffffff81105579>] ? kmem_cache_alloc_trace+0x2a/0xfc
[  133.222981]  [<ffffffff813a8b2e>] ? check_tty_count+0x1c/0x93
[  133.222983]  [<ffffffff813658ac>] ? fbcon_blank+0x71/0x230
[  133.222984]  [<ffffffff813bb360>] ? do_unblank_screen+0xef/0x169
[  133.222985]  [<ffffffff813b39b7>] ? vt_ioctl+0x4b0/0xf7f
[  133.222989]  [<ffffffffa0002f8c>] ? drm_ioctl+0x27a/0x3c0 [drm]
[  133.222990]  [<ffffffff813ac101>] ? tty_ioctl+0x8bc/0x92b
[  133.222991]  [<ffffffff81117c59>] ? do_filp_open+0x2d/0x75
[  133.222992]  [<ffffffff81119973>] ? do_vfs_ioctl+0x3ec/0x435
[  133.222993]  [<ffffffff8112145c>] ? __fd_install+0x15/0x43
[  133.222994]  [<ffffffff81119a05>] ? SyS_ioctl+0x49/0x78
[  133.222996]  [<ffffffff8109f1b0>] ? __audit_syscall_exit+0x209/0x225
[  133.222997]  [<ffffffff81785f92>] ? system_call_fastpath+0x16/0x1b
[  133.222997] ---[ end trace 1f369a48870428f9 ]---

Where is the error propagation!
Comment 10 Paulo Zanoni 2014-10-09 13:23:06 UTC 
Hi

Can you please retest this against drm-intel-nightly on BDW? We recently merged "drm/i915: properly reenable gen8 pipe IRQs", which could have fixed this bug.

Also, which platforms exactly are affected by this? I see this bug report mentioning IVB, BDW and BSW. I can't reproduce the problem on BDW.

Thanks,
Paulo
Comment 11 Guo Jinxian 2014-10-13 03:04:24 UTC 
(In reply to Paulo Zanoni from comment #10)
> Hi
> 
> Can you please retest this against drm-intel-nightly on BDW? We recently
> merged "drm/i915: properly reenable gen8 pipe IRQs", which could have fixed
> this bug.
> 
> Also, which platforms exactly are affected by this? I see this bug report
> mentioning IVB, BDW and BSW. I can't reproduce the problem on BDW.
> 
> Thanks,
> Paulo

On latest -nightly(ead7d71357628dc1231535886ec09853e9164d6d), test passed on BDW, and skips on IVB and BSW. I am not sure if is it expected on IVB and BSW.


root@x-bdw05:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# ./kms_mmio_vs_cs_flip --run-subtest setcrtc_vs_cs_flip
IGT-Version: 1.8-gb7d80d1 (x86_64) (Linux: 3.17.0_drm-intel-nightly_ead7d7_20141013+ x86_64)
Subtest setcrtc_vs_cs_flip: SUCCESS (4.839s)


[root@x-ivb9 tests]# ./kms_mmio_vs_cs_flip --run-subtest setcrtc_vs_cs_flip
IGT-Version: 1.8-gca6b63f (x86_64) (Linux: 3.17.0_drm-intel-nightly_ea4bec_20141012_debug+ x86_64)
Test requirement not met in function drm_open_any_master, file drmtest.c:341:
Test requirement: drmSetMaster(fd) == 0
Can't become DRM master, please check if no other DRM client is running.
Last errno: 22, Invalid argument
Subtest setcrtc_vs_cs_flip: SKIP

[root@x-bsw01 tests]# ./kms_mmio_vs_cs_flip --run-subtest setcrtc_vs_cs_flip
IGT-Version: 1.8-gb7d80d1 (x86_64) (Linux: 3.17.0_drm-intel-nightly_ea4bec_20141012+ x86_64)
Test requirement not met in function run_crtc_test_for_pipe, file kms_mmio_vs_cs_flip.c:533:
Test requirement: valid_tests
no valid crtc/connector combinations found
Subtest setcrtc_vs_cs_flip: SKIP (11.013s)
Comment 12 Paulo Zanoni 2014-10-13 11:36:33 UTC 
(In reply to Guo Jinxian from comment #11)
> (In reply to Paulo Zanoni from comment #10)
> > Hi
> > 
> > Can you please retest this against drm-intel-nightly on BDW? We recently
> > merged "drm/i915: properly reenable gen8 pipe IRQs", which could have fixed
> > this bug.
> > 
> > Also, which platforms exactly are affected by this? I see this bug report
> > mentioning IVB, BDW and BSW. I can't reproduce the problem on BDW.
> > 
> > Thanks,
> > Paulo
> 
> On latest -nightly(ead7d71357628dc1231535886ec09853e9164d6d), test passed on
> BDW, and skips on IVB and BSW. I am not sure if is it expected on IVB and
> BSW.
> 
> 
> root@x-bdw05:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests#
> ./kms_mmio_vs_cs_flip --run-subtest setcrtc_vs_cs_flip
> IGT-Version: 1.8-gb7d80d1 (x86_64) (Linux:
> 3.17.0_drm-intel-nightly_ead7d7_20141013+ x86_64)
> Subtest setcrtc_vs_cs_flip: SUCCESS (4.839s)
> 
> 
> [root@x-ivb9 tests]# ./kms_mmio_vs_cs_flip --run-subtest setcrtc_vs_cs_flip
> IGT-Version: 1.8-gca6b63f (x86_64) (Linux:
> 3.17.0_drm-intel-nightly_ea4bec_20141012_debug+ x86_64)
> Test requirement not met in function drm_open_any_master, file drmtest.c:341:
> Test requirement: drmSetMaster(fd) == 0
> Can't become DRM master, please check if no other DRM client is running.
> Last errno: 22, Invalid argument
> Subtest setcrtc_vs_cs_flip: SKIP

I recently sent an email to Gordon containing instructions of what QA should do once they find this error message. There's a BKM written just for that message. Please make sure you follow those steps.

> 
> [root@x-bsw01 tests]# ./kms_mmio_vs_cs_flip --run-subtest setcrtc_vs_cs_flip
> IGT-Version: 1.8-gb7d80d1 (x86_64) (Linux:
> 3.17.0_drm-intel-nightly_ea4bec_20141012+ x86_64)
> Test requirement not met in function run_crtc_test_for_pipe, file
> kms_mmio_vs_cs_flip.c:533:
> Test requirement: valid_tests
> no valid crtc/connector combinations found
> Subtest setcrtc_vs_cs_flip: SKIP (11.013s)

Do you have any outputs attached to the machine?
Comment 13 Guo Jinxian 2014-10-14 07:54:38 UTC 
(In reply to Paulo Zanoni from comment #12)
> (In reply to Guo Jinxian from comment #11)
> > [root@x-bsw01 tests]# ./kms_mmio_vs_cs_flip --run-subtest setcrtc_vs_cs_flip
> > IGT-Version: 1.8-gb7d80d1 (x86_64) (Linux:
> > 3.17.0_drm-intel-nightly_ea4bec_20141012+ x86_64)
> > Test requirement not met in function run_crtc_test_for_pipe, file
> > kms_mmio_vs_cs_flip.c:533:
> > Test requirement: valid_tests
> > no valid crtc/connector combinations found
> > Subtest setcrtc_vs_cs_flip: SKIP (11.013s)
> 
> Do you have any outputs attached to the machine?

Test passed on IVB.
[root@x-ivb9 tests]# ./kms_mmio_vs_cs_flip --run-subtest setcrtc_vs_cs_flip
IGT-Version: 1.8-gca6b63f (x86_64) (Linux: 3.17.0_drm-intel-nightly_2ea23c_20141014_debug+ x86_64)
Subtest setcrtc_vs_cs_flip: SUCCESS (2.556s)

On BSW, Red,blue and green screens display alternately while running the test. Test result still skips.


[root@x-bsw01 tests]# ./kms_mmio_vs_cs_flip --run-subtest setcrtc_vs_cs_flip
IGT-Version: 1.8-gb7d80d1 (x86_64) (Linux: 3.17.0_drm-intel-nightly_2ea23c_20141014+ x86_64)
Test requirement not met in function run_crtc_test_for_pipe, file kms_mmio_vs_cs_flip.c:533:
Test requirement: valid_tests
no valid crtc/connector combinations found
Subtest setcrtc_vs_cs_flip: SKIP (11.121s)
Comment 14 Paulo Zanoni 2014-10-17 19:29:47 UTC 
The BDW regression, reported in the original bug report and bisected in comment #3 was fixed, so I'm closing the bug. If the problem still happens on BDW, please reopen.

If you see similar problems on other platforms - or the same problem -, please open another bug report and to a new git bisect on that specific problem.
Comment 15 Guo Jinxian 2014-10-24 07:15:14 UTC 
Verified on latest -nightly(6f628cbf2f18ac47e8afad50e3c328bbc33754d2)

About BSW, the result is failed now. which tracked by bug 79291

[root@x-bsw01 tests]# ./kms_mmio_vs_cs_flip --run-subtest setcrtc_vs_cs_flip
IGT-Version: 1.8-ge497600 (x86_64) (Linux: 3.18.0-rc1_drm-intel-nightly_6f628c_20141024+ x86_64)
Test assertion failure function test_crtc, file kms_mmio_vs_cs_flip.c:500:
Failed assertion: igt_crc_equal(&ref_crc, &crc)
Subtest setcrtc_vs_cs_flip: FAIL (5.199s)
Comment 16 Jari Tahvanainen 2016-09-28 13:29:21 UTC 
Closing verified+fixed.

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