[Bug 77297] [ILK/SNB/IVB/BYT/HSW/BDW bisected]CallTrace: WARNING: CPU: 0 PID: 1335 at drivers/gpu/drm/i915/intel_display.c:768 intel_wait_for_vblank+0x159/0x17c [i915]() while running kms_flip_absolute-wf_vblank

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=77297

--- Comment #19 from Guo Jinxian <jinxianx.guo at intel.com> ---
Created attachment 101151
  --> https://bugs.freedesktop.org/attachment.cgi?id=101151&action=edit
dmesg

This bug still able to reproduce on latest -nightly() on ILK while run cases
below:
igt/kms_flip/absolute-wf_vblank
igt/kms_flip/absolute-wf_vblank-interruptible


Dmesg shows:
[  141.708735] WARNING: CPU: 0 PID: 3985 at
drivers/gpu/drm/i915/intel_display.c:893 intel_wait_for_vblank+0x156/0x179
[i915]()
[  141.708738] vblank wait timed out
[  141.708740] Modules linked in: dm_mod snd_hda_codec_hdmi snd_hda_codec_idt
snd_hda_codec_generic iTCO_wdt iTCO_vendor_support ppdev dcdbas pcspkr
firewire_ohci i2c_i801 snd_hda_intel lpc_ich snd_hda_controller mfd_core
snd_hda_codec snd_hwdep firewire_core crc_itu_t snd_pcm snd_timer snd soundcore
wmi battery parport_pc parport tpm_tis tpm ac acpi_cpufreq joydev i915 video
button drm_kms_helper drm
[  141.708776] CPU: 0 PID: 3985 Comm: kms_flip Not tainted
3.15.0-rc8_drm-intel-nightly_b438e8_20140616+ #3594
[  141.708778] Hardware name: Dell Inc. Latitude E6510/0JKDHD, BIOS A05
08/10/2010
[  141.708781]  00000000 c16e77a2 f4ebbc90 c102e6c8 f858528f c24d0000 00071040
000003a2
[  141.708788]  fffd94ec c102e743 00000009 f4ebbc90 f85cb42d f4ebbca8 f858528f
f85c9ae4
[  141.708794]  0000037d f85cb42d c24d0000 f596bc80 8004400c c2429400 f859c6e2
c2487000
[  141.708801] Call Trace:
[  141.708810]  [<c16e77a2>] ? dump_stack+0x3e/0x4e
[  141.708815]  [<c102e6c8>] ? warn_slowpath_common+0x65/0x78
[  141.708843]  [<f858528f>] ? intel_wait_for_vblank+0x156/0x179 [i915]
[  141.708847]  [<c102e743>] ? warn_slowpath_fmt+0x29/0x2d
[  141.708866]  [<f858528f>] ? intel_wait_for_vblank+0x156/0x179 [i915]
[  141.708882]  [<f859c6e2>] ? intel_dp_link_down+0x167/0x169 [i915]
[  141.708897]  [<f859c77c>] ? g4x_post_disable_dp+0x19/0xa5 [i915]
[  141.708912]  [<f858a385>] ? ironlake_crtc_disable+0xaa/0x6f8 [i915]
[  141.708920]  [<f804c33d>] ? drm_ut_debug_printk+0x2c/0x30 [drm]
[  141.708936]  [<f858b78d>] ? __intel_set_mode+0x1a8/0x1024 [i915]
[  141.708953]  [<f858c0dc>] ? __intel_set_mode+0xaf7/0x1024 [i915]
[  141.708956]  [<c10593ff>] ? up+0x9/0x2a
[  141.708959]  [<c10621f9>] ? console_unlock+0x309/0x33d
[  141.708962]  [<c16e4ca8>] ? printk+0x16/0x1a
[  141.708976]  [<f858e0a8>] ? intel_set_mode+0x11/0x25 [i915]
[  141.708990]  [<f858eb37>] ? intel_crtc_set_config+0x62f/0x92c [i915]
[  141.708993]  [<c16eb129>] ? __ww_mutex_lock+0xe/0x6d
[  141.709000]  [<f8050267>] ? drm_mode_set_config_internal+0x39/0x8a [drm]
[  141.709007]  [<f805047b>] ? drm_framebuffer_remove+0x70/0xd6 [drm]
[  141.709014]  [<f8053528>] ? drm_mode_rmfb+0xa7/0xcd [drm]
[  141.709021]  [<f8053481>] ? drm_mode_addfb2+0x27/0x27 [drm]
[  141.709026]  [<f80488cf>] ? drm_ioctl+0x22e/0x35f [drm]
[  141.709033]  [<f8053481>] ? drm_mode_addfb2+0x27/0x27 [drm]
[  141.709036]  [<c10b2a4e>] ? release_pages+0x13d/0x153
[  141.709039]  [<c10cd1f8>] ? free_pages_and_swap_cache+0x5e/0x6c
[  141.709042]  [<c10c0923>] ? tlb_flush_mmu_free+0x17/0x2b
[  141.709044]  [<c10c0b0e>] ? tlb_finish_mmu+0x9/0x27
[  141.709046]  [<c10c5152>] ? unmap_region+0x99/0xa1
[  141.709051]  [<f80486a1>] ? drm_copy_field+0x47/0x47 [drm]
[  141.709056]  [<c10e5431>] ? do_vfs_ioctl+0x3fa/0x444
[  141.709062]  [<f804994c>] ? drm_gem_vm_close+0x1f/0x3c [drm]
[  141.709064]  [<c10c5190>] ? remove_vma+0x36/0x3b
[  141.709066]  [<c10c6693>] ? do_munmap+0x1eb/0x206
[  141.709068]  [<c10e54bd>] ? SyS_ioctl+0x42/0x6d
[  141.709072]  [<c16f1dac>] ? sysenter_do_call+0x12/0x22

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