[Bug 84902] New: [BSW] System fail to enter hibernation with error message after load i915 driver

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=84902

            Bug ID: 84902
           Summary: [BSW] System fail to enter hibernation with error
                    message after load i915 driver
           Product: DRI
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: critical
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: wendy.wang at intel.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 107702
  --> https://bugs.freedesktop.org/attachment.cgi?id=107702&action=edit
dmesg log file

==System Environment==
--------------------------
Regression: No. 
It's first run tests on BSW

Non-working platforms: BSW

==kernel==
--------------------------
origin/drm-intel-nightly:
BOOT_IMAGE=kernels//nightly_parents/2014_10_11/drm-intel-nightly/ea4bec8e96ea8b33b49a7892c1c7f20041a56da6/bzImage_x86_64
root=/dev/sda4 drm.debug=0xe
modules_path=kernels//nightly_parents/2014_10_11/drm-intel-nightly/ea4bec8e96ea8b33b49a7892c1c7f20041a56da6/modules_x86_64/lib/modules/3.17.0_drm-intel-nightly_ea4bec_20141011+
acpi_rsdp=0x7b729014 kexec_jump_back_entry=0x5434a8e8

==Bug detailed description==
-----------------------------
With i915 driver loaded the fail symptom as below:
1. 1st cycle to execute "echo disk > /sys/power/state"
2. test machine will enter S4 successfully, then automatically resume back from
S4.
3. Second time to try "echo disk > /sys/power/state", system will fail to enter
into S4 with dmesge error:"
[   90.753796] [drm] stuck on blitter ring
[   90.776392] [drm] GPU HANG: ecode 2:0xfffffffe, reason: Ring hung, action:
reset
[   90.780688] [drm] GPU hangs can indicate a bug anywhere in the entire gfx
stack, including userspace.
[   90.785052] [drm] Please file a _new_ bug report on bugs.freedesktop.org
against DRI -> DRM/Intel
[   90.789480] [drm] drm/i915 developers can then reassign to the right
component if it's not a kernel issue.
[   90.793974] [drm] The gpu crash dump is required to analyze gpu hangs, so
please always attach it.
[   90.798527] [drm] GPU crash dump saved to /sys/class/drm/card0/error
[   90.803502] i915 0000:00:02.0: GEM idle failed, resume might fail
[   90.805296] drm/i915: Resetting chip after gpu hang
[   90.812746] pci_pm_freeze(): i915_pm_freeze+0x0/0x34 [i915] returns -11
[   90.817418] dpm_run_callback(): pci_pm_freeze+0x0/0xb5 returns -11
[   90.822089] call 0000:00:02.0+ returned -11 after 5851154 usecs
[   90.826773] PM: Device 0000:00:02.0 failed to freeze async: error -11
"

4. Disable i915 driver and system can enter S4 successfully both at the 1st or
2nd cycle.

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