[Bug 67337] [SNB IVB HSW]S4 fails to resume sporadically

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=67337

shui yangwei <yangweix.shui at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEEDINFO                    |NEW
           Assignee|intel-gfx-bugs at lists.freede |yangweix.shui at intel.com
                   |sktop.org                   |

--- Comment #2 from shui yangwei <yangweix.shui at intel.com> ---
Created attachment 83876
  --> https://bugs.freedesktop.org/attachment.cgi?id=83876&action=edit
without i915: screen output

(In reply to comment #1)
> Please try this without i915 loaded so we can see if this is related to our
> driver in the first place.
> 
> If that works, please try with i915 again, using drm.debug=0xe module
> parameter.

(In reply to comment #1)
> Please try this without i915 loaded so we can see if this is related to our
> driver in the first place.
> 
> If that works, please try with i915 again, using drm.debug=0xe module
> parameter.

S4 also failed to resume after removing i915, I noticed that the screen is not
black, and the machine is reachable. I said it failed, because my script
stopped, and the screen output is strange. I loop running S4 test for two
times, the first time it failed at 9th round, the second time it failed at 6th
round. 

There's quite a little things in dmesg, I pasted it here:
---------------------------------
[83963.438834] cl-api-create-p[6317]: segfault at 0 ip 0000003cd355f791 sp
00007ffff7d5ccf8 error 4 in libc-2.15.so[3cd3400000+1ac000]
[2642043.120562] e1000e: eth1 NIC Link is Down
[2642044.724906] e1000e: eth1 NIC Link is Up 100 Mbps Full Duplex, Flow
Control: Rx/Tx
[2642044.724909] e1000e 0000:02:00.0: eth1: 10/100 speed: disabling TSO
[5931798.505398] libcl.so[32650]: segfault at 18bf4 ip 00000000f7797bfb sp
00000000ffa05414 error 6 in libcl.so[f7787000+18000]

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