[Bug 104221] New: igt at kms_*@*[suspend|dpms]* - dmesg-warn - Display power well on | fail - Failed assertion: igt_wait_for_pm_status(IGT_RUNTIME_PM_STATUS_SUSPENDED)

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Tue Dec 12 10:58:07 UTC 2017


https://bugs.freedesktop.org/show_bug.cgi?id=104221

            Bug ID: 104221
           Summary: igt at kms_*@*[suspend|dpms]* - dmesg-warn - Display
                    power well on | fail - Failed assertion:
                    igt_wait_for_pm_status(IGT_RUNTIME_PM_STATUS_SUSPENDED
                    )
           Product: DRI
           Version: DRI git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: marta.lofstedt at intel.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

While running kms-all on my BDW NUCi5 there is a regression probably started on
4.15.0-rc1, where basically all suspend and dpms related test either dmesg-warn
or fail.

Suspend test dmesg-warn with:
[  143.054004] Display power well on
[  143.054032] WARNING: CPU: 3 PID: 3692 at
drivers/gpu/drm/i915/intel_display.c:8673 hsw_enable_pc8+0x5e2/0x6b0
[  143.054034] Modules linked in: x86_pkg_temp_thermal
[  143.054042] CPU: 3 PID: 3692 Comm: kworker/u8:60 Tainted: G        W       
4.15.0-rc2+ #6
[  143.054044] Hardware name:                  /NUC5i5RYB, BIOS
RYBDWi35.86A.0365.2017.0704.1050 07/04/2017
[  143.054048] Workqueue: events_unbound async_run_entry_fn
[  143.054052] task: 00000000aa49c0e9 task.stack: 00000000edfdaa51
[  143.054058] RIP: 0010:hsw_enable_pc8+0x5e2/0x6b0
[  143.054060] RSP: 0018:ffff949f01b97d88 EFLAGS: 00010296
[  143.054064] RAX: 0000000000000015 RBX: ffff8fc8cadf0000 RCX:
ffffffff85844c98
[  143.054066] RDX: ffffffff85844c98 RSI: 0000000000000086 RDI:
ffffffff85844c90
[  143.054068] RBP: ffff8fc8cadf0330 R08: 0000000000000000 R09:
0000000000000015
[  143.054071] R10: 0000000000000600 R11: 000000000002dd38 R12:
ffff8fc8cadf0340
[  143.054073] R13: ffffffff85634cc3 R14: 0000000000000000 R15:
ffffffff856416b5
[  143.054076] FS:  0000000000000000(0000) GS:ffff8fc8d6d80000(0000)
knlGS:0000000000000000
[  143.054078] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  143.054081] CR2: 000055667e012d80 CR3: 000000011620a006 CR4:
00000000003606e0
[  143.054082] Call Trace:
[  143.054091]  i915_drm_suspend_late+0xea/0x160
[  143.054097]  ? pci_pm_poweroff_late+0x30/0x30
[  143.054101]  dpm_run_callback+0x3a/0x130
[  143.054105]  __device_suspend_late+0xb4/0x1c0
[  143.054109]  async_suspend_late+0x15/0x90
[  143.054112]  async_run_entry_fn+0x2c/0xd0
[  143.054119]  process_one_work+0x1d2/0x3c0
[  143.054125]  worker_thread+0x42/0x3e0
[  143.054130]  kthread+0xf0/0x130
[  143.054136]  ? trace_event_raw_event_workqueue_work+0x80/0x80
[  143.054140]  ? _kthread_create_worker_on_cpu+0x40/0x40
[  143.054155]  ret_from_fork+0x1f/0x30
[  143.054158] Code: a4 00 00 75 1a 48 c7 c2 dd 4c 63 85 31 f6 48 c7 c7 33 e8
5c 85 e8 4f 68 f7 ff e9 16 fb ff ff 48 c7 c7 dd 4c 63 85 e8 8e ed b6 ff <0f> ff
e9 03 fb ff ff 48 c7 c7 8e 4d 63 85 e8 7b ed b6 ff 0f ff 
[  143.054211] ---[ end trace a3d782cbd2ed00b0 ]---

dpms tests:

(kms_flip:8266) CRITICAL: Test assertion failure function run_test_step, file
kms_flip.c:851:
(kms_flip:8266) CRITICAL: Failed assertion:
igt_wait_for_pm_status(IGT_RUNTIME_PM_STATUS_SUSPENDED)
(kms_flip:8266) CRITICAL: Last errno: 4, Interrupted system call
Subtest vblank-vs-dpms-rpm-interruptible failed.

Note this has not been reproduced on BAT/CI

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