[Bug 70270] [Baytrail-M Regression VGA] machine boot up with Call Trace

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=70270

--- Comment #1 from shui yangwei <yangweix.shui at intel.com> ---
Created attachment 87268
  --> https://bugs.freedesktop.org/attachment.cgi?id=87268&action=edit
dmesg: latest -next-queued kernel

Latest -next-queued kernel:
------------------------
Kernel: (drm-intel-nightly)7feaa977a8f76312e02d916a071b7a4c0140ffcd
Some additional commit info:
Author: Ville Syrjälä <ville.syrjala at linux.intel.com>
Date:   Tue Oct 1 18:02:21 2013 +0300

    drm/i915: Flush primary plane changes in sprite code


Description:
------------------------
On latest -next-queued, the call trace is not quite the same with first bad. I
have found some good commit, and the dmesg is clean, so I judge one commit is
bad if the dmesg is dirty. Anything needed, please comment.


Call Trace
------------------------
[    1.748887] [drm:i9xx_update_plane], Writing base 00073000 00000000 0 0 7680
[    1.748900] [drm:intel_edp_psr_match_conditions], PSR not supported on this
platform
[    1.748914] [drm:intel_crtc_mode_set], [ENCODER:10:DAC-10] set
[MODE:0:1024x768]
[    1.749578] [drm:valleyview_update_wm], Setting FIFO watermarks - A:
plane=61, cursor=6, B: plane=150, cursor=6, SR: plane=0, cursor=0
[    1.749585] ------------[ cut here ]------------
[    1.749623] WARNING: CPU: 1 PID: 1151 at
drivers/gpu/drm/i915/intel_display.c:1843 intel_enable_primary_plane+0x49/0xb5
[i915]()
[    1.749623] Primary plane already enabled
[    1.749629] Modules linked in: i915(+) video button drm_kms_helper drm
freq_table
[    1.749633] CPU: 1 PID: 1151 Comm: udevd Not tainted
3.12.0-rc3_drm-intel-next-queued_7feaa9_20131008_+ #610
[    1.749637]  0000000000000000 0000000000000009 ffffffff81704444
ffff88006fde7478
[    1.749639]  ffffffff8103319e 0000000200000007 ffffffffa00849e9
ffff880004ca4000
[    1.749642]  ffff880004ca4000 0000000000000001 0000000000000001
ffff880004c3b000
[    1.749643] Call Trace:
[    1.749651]  [<ffffffff81704444>] ? dump_stack+0x41/0x51
[    1.749656]  [<ffffffff8103319e>] ? warn_slowpath_common+0x73/0x8b
[    1.749686]  [<ffffffffa00849e9>] ? intel_enable_primary_plane+0x49/0xb5
[i915]
[    1.749690]  [<ffffffff8103324e>] ? warn_slowpath_fmt+0x45/0x4a
[    1.749720]  [<ffffffffa00843fc>] ? assert_pipe+0x61/0xc0 [i915]
[    1.749750]  [<ffffffffa00849e9>] ? intel_enable_primary_plane+0x49/0xb5
[i915]
[    1.749780]  [<ffffffffa0088825>] ? valleyview_crtc_enable+0x308/0x395
[i915]
[    1.749811]  [<ffffffffa008b01e>] ? __intel_set_mode+0xfd4/0x10df [i915]

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