[Bug 77717] [PNV/ILK bisected]igt/drv_suspend/debugfs-reader fails and cost long time to execute

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=77717

--- Comment #5 from Guo Jinxian <jinxianx.guo at intel.com> ---
(In reply to comment #2)
> There is also a backtrace at boot in dmesg:
> 
> [    1.575212] WARNING: CPU: 0 PID: 1256 at
> drivers/gpu/drm/i915/intel_display.c:1151 ironlake_fdi_link_train+0x5d/0x343
> [i915]()
> [    1.575213] plane A assertion failure (expected on, current off)
> [    1.575215] Modules linked in: i915(+) video button drm_kms_helper drm
> [    1.575217] CPU: 0 PID: 1256 Comm: udevd Not tainted
> 3.14.0_drm-intel-nightly_1e771b_20140421+ #1870
> [    1.575218] Hardware name: Gigabyte Technology Co., Ltd.
> H55M-UD2H/H55M-UD2H, BIOS F4 12/02/2009
> [    1.575220]  0000000000000000 0000000000000009 ffffffff81717233
> ffff880002ccf468
> [    1.575220]  ffffffff81035052 0000000000000003 ffffffffa0097758
> 0000000000000000
> [    1.575221]  ffff88010e530000 ffff880112f6b000 00000000000f0018
> 0000000000000000
> [    1.575222] Call Trace:
> 
> Where is the regression report for that?

This CallTrace unable to reproduce on latest
-fixes(7f1950fbb989e8fc5463b307e062b4529d51c862)

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