[Bug 78763] New: [ILK Regression]igt/testdisplay causes "WARNING: CPU: 3 PID: 4013 at drivers/gpu/drm/i915/intel_display.c:944 intel_wait_for_pipe_off+0x12e/0x135 [i915]()"

Thu May 15 20:01:38 PDT 2014

https://bugs.freedesktop.org/show_bug.cgi?id=78763

          Priority: high
            Bug ID: 78763
                CC: intel-gfx-bugs at lists.freedesktop.org
          Assignee: intel-gfx-bugs at lists.freedesktop.org
           Summary: [ILK Regression]igt/testdisplay causes "WARNING: CPU:
                    3 PID: 4013 at
                    drivers/gpu/drm/i915/intel_display.c:944
                    intel_wait_for_pipe_off+0x12e/0x135 [i915]()"
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
          Severity: normal
    Classification: Unclassified
                OS: All
          Reporter: jinxianx.guo at intel.com
          Hardware: Other
            Status: NEW
           Version: unspecified
         Component: DRM/Intel
           Product: DRI

Created attachment 99130
  --> https://bugs.freedesktop.org/attachment.cgi?id=99130&action=edit
dmesg

==System Environment==
--------------------------
Regression: Yes. 


Non-working platforms: ILK

==kernel==
--------------------------
-nightly: c74cad3c2599b47438b168ca5629fbb00ab63f95 (fails)
-queued: 229b0489aa75a8c51d2f2e124329d3ac326f326d (fails)
    Author: Mika Kuoppala <mika.kuoppala at linux.intel.com>
    Date:   Wed May 14 17:02:17 2014 +0300

    drm/i915: add null render states for gen6, gen7 and gen8

    These are generated with intel-gpu-tools/tools/null_state_gen

    v2: Don't use header file for states (Daniel Vetter)

    v3: Proper URB state size for gen8/GT3 (Damien Lespiau)

    Tested-by: Kristen Carlson Accardi <kristen at linux.intel.com> (v1)
    Tested-by: Oscar Mateo <oscar.mateo at intel.com> (v2)
    Acked-by: Damien Lespiau <damien.lespiau at intel.com>
    Signed-off-by: Mika Kuoppala <mika.kuoppala at intel.com>
    Signed-off-by: Daniel Vetter <daniel.vetter at ffwll.ch>


-fixes: 05adaf1f101f25f40f12c29403e6488f0e45f6b6 (fails)
    Author: Jani Nikula <jani.nikula at intel.com>
    Date:   Fri May 9 14:52:34 2014 +0300

    drm/i915/vlv: reset VLV media force wake request register

    Media force wake get hangs the machine when the system is booted without
    displays attached. The assumption is that (at least some versions of)
    the firmware has skipped some initialization in that case.

    Empirical evidence suggests we need to reset the media force wake
    request register in addition to the render one to avoid hangs.

    Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=75895
    Reported-by: Imre Deak <imre.deak at intel.com>
    Reported-by: Darren Hart <dvhart at linux.intel.com>
    Tested-by: Darren Hart <dvhart at linux.intel.com>
    Reviewed-by: Mika Kuoppala <mika.kuoppala at intel.com>
    Cc: stable at vger.kernel.org
    Signed-off-by: Jani Nikula <jani.nikula at intel.com>

==Bug detailed description==
-----------------------------
igt/testdisplay causes "WARNING: CPU: 3 PID: 4013 at
drivers/gpu/drm/i915/intel_display.c:944 intel_wait_for_pipe_off+0x12e/0x135
[i915]()"

Dmesg shows:
[  921.209309] ------------[ cut here ]------------
[  921.209342] WARNING: CPU: 3 PID: 4013 at
drivers/gpu/drm/i915/intel_display.c:944 intel_wait_for_pipe_off+0x12e/0x135
[i915]()
[  921.209344] pipe_off wait timed out
[  921.209346] Modules linked in: dm_mod snd_hda_codec_hdmi snd_hda_codec_idt
snd_hda_codec_generic iTCO_wdt iTCO_vendor_support ppdev dcdbas snd_hda_intel
snd_hda_controller pcspkr snd_hda_codec i2c_i801 snd_hwdep snd_pcm lpc_ich
mfd_core snd_timer firewire_ohci snd firewire_core crc_itu_t soundcore wmi
battery tpm_tis tpm parport_pc parport ac acpi_cpufreq joydev i915 video button
drm_kms_helper drm
[  921.209380] CPU: 3 PID: 4013 Comm: testdisplay Tainted: G        W    
3.15.0-rc3_drm-intel-nightly_2be456_20140514+ #2598
[  921.209383] Hardware name: Dell Inc. Latitude E6510/0JKDHD, BIOS A05
08/10/2010
[  921.209385]  00000000 c16a5021 f4993cc0 c102cf1b f8569f80 c2858000 00070008
000977f7
[  921.209392]  f6175db4 c102cf96 00000009 f4993cc0 f85acdb9 f4993cd8 f8569f80
f85ab5ab
[  921.209398]  000003b0 f85acdb9 c2858000 f6175db8 f5bfc000 f856f6da f4993cf4
f804c166
[  921.209405] Call Trace:
[  921.209410]  [<c16a5021>] ? dump_stack+0x3e/0x4e
[  921.209416]  [<c102cf1b>] ? warn_slowpath_common+0x61/0x74
[  921.209443]  [<f8569f80>] ? intel_wait_for_pipe_off+0x12e/0x135 [i915]
[  921.209448]  [<c102cf96>] ? warn_slowpath_fmt+0x29/0x2d
[  921.209474]  [<f8569f80>] ? intel_wait_for_pipe_off+0x12e/0x135 [i915]
[  921.209501]  [<f856f6da>] ? ironlake_crtc_disable+0x85/0x713 [i915]
[  921.209514]  [<f804c166>] ? drm_ut_debug_printk+0x2c/0x30 [drm]
[  921.209540]  [<f8570ab6>] ? __intel_set_mode+0x1a3/0xffd [i915]
[  921.209565]  [<f8571401>] ? __intel_set_mode+0xaee/0xffd [i915]
[  921.209570]  [<c105401b>] ? up+0x9/0x2a
[  921.209574]  [<c105c80d>] ? console_unlock+0x309/0x33d
[  921.209600]  [<f85731e2>] ? intel_set_mode+0x11/0x25 [i915]
[  921.209625]  [<f8573c39>] ? intel_crtc_set_config+0x646/0x8f1 [i915]
[  921.209630]  [<c104e7c9>] ? load_balance+0x106/0x61f
[  921.209644]  [<f80500e0>] ? drm_mode_set_config_internal+0x39/0x8a [drm]
[  921.209657]  [<f80502f4>] ? drm_framebuffer_remove+0x70/0xd6 [drm]
[  921.209670]  [<f8052ecf>] ? drm_mode_rmfb+0xa7/0xcd [drm]
[  921.209683]  [<f8052e28>] ? drm_mode_addfb2+0x5c2/0x5c2 [drm]
[  921.209693]  [<f80488b3>] ? drm_ioctl+0x22e/0x35f [drm]
[  921.209706]  [<f8052e28>] ? drm_mode_addfb2+0x5c2/0x5c2 [drm]
[  921.209710]  [<c16a7ae6>] ? __schedule+0x597/0x6bb
[  921.209715]  [<c10415f2>] ? enqueue_hrtimer+0x10/0x2e
[  921.209719]  [<c1041d5d>] ? __hrtimer_start_range_ns+0x15b/0x259
[  921.209722]  [<c1041e44>] ? __hrtimer_start_range_ns+0x242/0x259
[  921.209727]  [<c1041940>] ? lock_hrtimer_base.isra.26+0x14/0x2d
[  921.209730]  [<c10419e3>] ? hrtimer_try_to_cancel+0x54/0x5a
[  921.209741]  [<f8048685>] ? drm_copy_field+0x47/0x47 [drm]
[  921.209745]  [<c10c92f9>] ? do_vfs_ioctl+0x3fa/0x444
[  921.209750]  [<c1042506>] ? hrtimer_nanosleep+0x73/0xf3
[  921.209753]  [<c104169b>] ? update_rmtp+0x5e/0x5e
[  921.209757]  [<c10c9385>] ? SyS_ioctl+0x42/0x6d
[  921.209762]  [<c16adeac>] ? sysenter_do_call+0x12/0x22
[  921.209765] ---[ end trace 705caa71d149a4fd ]---


==Reproduce steps==
---------------------------- 
1. ./testdisplay -a

-- 
You are receiving this mail because:
You are the QA Contact for the bug.
You are on the CC list for the bug.
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.freedesktop.org/archives/intel-gfx-bugs/attachments/20140516/0a51ab25/attachment-0001.html>