[Bug 90232] New: [BSW]S3 sporadically cause Call Trace

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=90232

            Bug ID: 90232
           Summary: [BSW]S3  sporadically cause Call Trace
           Product: DRI
           Version: unspecified
          Hardware: Other
                OS: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: lei.a.liu at intel.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 115435
  --> https://bugs.freedesktop.org/attachment.cgi?id=115435&action=edit
dmesg

==System Environment==
--------------------------
Regression: Not sure.

==kernel==
--------------------------
-testing: git tag:drm-intel-testing-2015-04-23 drm-intel-nightly:
2015y-04m-23d-19h-58m-37s UTC integration manifest (fails)

==Bug detailed description==
-----------------------------
Call Trace:
[11337.102092] ------------[ cut here ]------------
[11337.102139] WARNING: CPU: 0 PID: 13131 at
drivers/gpu/drm/i915/i915_gem.c:4648 i915_gem_suspend+0xbb/0xd3 [i915]()
[11337.102149] call usb2+ returned 0 after 2463 usecs
[11337.102182] calling  0000:00:14.0+ @ 20599, parent: pci0000:00
[11337.102185] WARN_ON(dev_priv->mm.busy)
[11337.102351] Modules linked in: dm_mod snd_hda_codec_hdmi
snd_hda_codec_realtek snd_hda_codec_generic iTCO_wdt iTCO_vendor_support pcspkr
serio_raw snd_hda_intel snd_hda_controller i2c_i801 snd_hda_codec snd_hda_core
lpc_ich snd_hwdep mfd_core snd_pcm snd_timer snd soundcore battery ac
acpi_cpufreq i915 option
[11337.102352] call 0000:00:14.0+ returned 0 after 152 usecs
[11337.102401]  usb_wwan usbserial button video drm_kms_helper drm
[11337.102406] CPU: 0 PID: 13131 Comm: kworker/u8:41 Tainted: G        W      
4.0.0_drm-intel-testing-2015-04-23+ #412
[11337.102454] Workqueue: events_unbound async_run_entry_fn
[11337.102460]  0000000000000000 0000000000000009 ffffffff81795847
ffff88017626fc78
[11337.102463]  ffffffff8103bd5a 0000000000000086 ffffffffa00e8d31
00000000000000bc
[11337.102505]  0000000000000000 ffff88007bbb0000 ffff880175ba9060
ffff88007bbb0000
[11337.102506] Call Trace:
[11337.102516]  [<ffffffff81795847>] ? dump_stack+0x40/0x50
[11337.102562]  [<ffffffff8103bd5a>] ? warn_slowpath_common+0x98/0xb0
[11337.102594]  [<ffffffffa00e8d31>] ? i915_gem_suspend+0xbb/0xd3 [i915]
[11337.102637]  [<ffffffff8103bdb7>] ? warn_slowpath_fmt+0x45/0x4a
[11337.102669]  [<ffffffffa00e8d31>] ? i915_gem_suspend+0xbb/0xd3 [i915]
[11337.102755]  [<ffffffffa00c5789>] ? i915_drm_suspend+0x59/0x1a1 [i915]
[11337.102802]  [<ffffffff8135fa1e>] ? pci_pm_suspend+0x79/0xf6
[11337.102806]  [<ffffffff8135f9a5>] ? pci_pm_freeze+0xa4/0xa4
[11337.102850]  [<ffffffff813f21a9>] ? dpm_run_callback+0x3a/0xc5
[11337.102854]  [<ffffffff813f2b17>] ? __device_suspend+0x1d1/0x25d
[11337.102894]  [<ffffffff813f2bb9>] ? async_suspend+0x16/0x7d
[11337.102898]  [<ffffffff81052783>] ? async_run_entry_fn+0x2d/0xbf
[11337.102905]  [<ffffffff8104ca7f>] ? process_one_work+0x1b2/0x31d
[11337.102948]  [<ffffffff8104d278>] ? worker_thread+0x24d/0x339
[11337.102953]  [<ffffffff8104d02b>] ? cancel_delayed_work_sync+0xa/0xa
[11337.102958]  [<ffffffff81050b25>] ? kthread+0xce/0xd6
[11337.103000]  [<ffffffff81050a57>] ? kthread_create_on_node+0x162/0x162
[11337.103005]  [<ffffffff8179b048>] ? ret_from_fork+0x58/0x90
[11337.103008]  [<ffffffff81050a57>] ? kthread_create_on_node+0x162/0x162
[11337.103049] ---[ end trace a727ae3112bed330 ]---

==Reproduce steps==
---------------------------- 
1. do s3
2. check dmesg.

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