[Bug 82751] New: [PNV Regression]igt/kms_flip some subcases cause "WARNING: CPU: 1 PID: 5455 at drivers/gpu/drm/i915/i915_drv.c:1487 intel_suspend_complete+0x54a/0x58d [i915]()"

Mon Aug 18 00:58:37 PDT 2014

https://bugs.freedesktop.org/show_bug.cgi?id=82751

          Priority: high
            Bug ID: 82751
          Keywords: bisect_pending
                CC: intel-gfx-bugs at lists.freedesktop.org
          Assignee: intel-gfx-bugs at lists.freedesktop.org
           Summary: [PNV Regression]igt/kms_flip some subcases cause
                    "WARNING: CPU: 1 PID: 5455 at
                    drivers/gpu/drm/i915/i915_drv.c:1487
                    intel_suspend_complete+0x54a/0x58d [i915]()"
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
          Severity: normal
    Classification: Unclassified
                OS: All
          Reporter: jinxianx.guo at intel.com
          Hardware: Other
            Status: NEW
           Version: unspecified
         Component: DRM/Intel
           Product: DRI

Created attachment 104801
  --> https://bugs.freedesktop.org/attachment.cgi?id=104801&action=edit
dmesg

==System Environment==
--------------------------
Regression: Yes.
Good commit on -next-queued: c0ee2e894256703265604a7455d614409c010ce8

Non-working platforms: PNV

==kernel==
--------------------------
origin/drm-intel-nightly: 186631131a9289dad22f51315d78b9b6ac5b425f(fails)
    drm-intel-nightly: 2014y-08m-15d-14h-55m-27s integration manifest
origin/drm-intel-next-queued: ecca3fd0ea82c45b558f68b1ff3bf6685b443ab1(fails)
    drm/i915/bdw: Enable Logical Ring Contexts (hence, Execlists)
origin/drm-intel-fixes: 103ae732ad26141515f109c80b5c1ced16e457c3(works)
    drm/i915: Don't try to enable cursor from setplane when crtc is disabled

==Bug detailed description==
-----------------------------
igt/kms_flip some subcases cause "WARNING: CPU: 1 PID: 5455 at
drivers/gpu/drm/i915/i915_drv.c:1487 intel_suspend_complete+0x54a/0x58d
[i915]()"

Case list:
igt/kms_flip/vblank-vs-dpms-suspend
igt/kms_flip/vblank-vs-dpms-suspend-interruptible
igt/kms_flip/vblank-vs-modeset-suspend
igt/kms_flip/vblank-vs-modeset-suspend-interruptible
igt/kms_flip/vblank-vs-suspend
igt/kms_flip/vblank-vs-suspend-interruptible

Output:
[root at x-pnv2 tests]# ./kms_flip --run-subtest vblank-vs-dpms-suspend
IGT-Version: 1.7-g1bec6cb (i686) (Linux:
3.16.0_drm-intel-nightly_186631_20140818+ i686)
Using monotonic timestamps
Beginning vblank-vs-dpms-suspend on crtc 10, connector 11
  1024x600 60 1024 1072 1104 1200 600 603 609 625 0xa 0x48 45000
.rtcwake: wakeup from ""mem"" using /dev/rtc0 at Mon Aug 18 19:28:27 2014
.rtcwake: wakeup from ""mem"" using /dev/rtc0 at Mon Aug 18 19:29:00 2014
Test assertion failure function check_state, file kms_flip.c:557:
Failed assertion: timercmp(&es->last_received_ts, &es->current_ts, <)
vblank ts before the vblank was issued!
timerdiff -1s, 990844us
Subtest vblank-vs-dpms-suspend: FAIL
[root at x-pnv2 tests]# dmesg -r|egrep ""<[1-4]>""|grep drm
<4>[  668.924655] WARNING: CPU: 1 PID: 5455 at
drivers/gpu/drm/i915/i915_drv.c:1487 intel_suspend_complete+0x54a/0x58d
[i915]()
<4>[  668.924712] Modules linked in: ip6table_filter ip6_tables ebtable_nat
ebtables nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ipt_REJECT
iptable_mangle xt_tcpudp iptable_filter ip_tables x_tables bridge stp llc ipv6
dm_mod iTCO_wdt iTCO_vendor_support msi_laptop sparse_keymap rfkill pcspkr
i2c_i801 snd_hda_codec_realtek snd_hda_codec_generic lpc_ich mfd_core
snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm r8169
snd_timer snd soundcore wmi battery ac acpi_cpufreq joydev i915 button video
drm_kms_helper drm cfbfillrect cfbimgblt cfbcopyarea
<4>[  668.924718] CPU: 1 PID: 5455 Comm: kworker/u4:15 Not tainted
3.16.0_drm-intel-nightly_186631_20140818+ #1538
<3>[  668.924964] [drm:i915_pm_suspend_late] *ERROR* Suspend complete failed:
-19
<4>[  672.470656] WARNING: CPU: 1 PID: 5477 at
drivers/gpu/drm/i915/i915_drv.c:1487 intel_suspend_complete+0x54a/0x58d
[i915]()
<4>[  672.470713] Modules linked in: ip6table_filter ip6_tables ebtable_nat
ebtables nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ipt_REJECT
iptable_mangle xt_tcpudp iptable_filter ip_tables x_tables bridge stp llc ipv6
dm_mod iTCO_wdt iTCO_vendor_support msi_laptop sparse_keymap rfkill pcspkr
i2c_i801 snd_hda_codec_realtek snd_hda_codec_generic lpc_ich mfd_core
snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm r8169
snd_timer snd soundcore wmi battery ac acpi_cpufreq joydev i915 button video
drm_kms_helper drm cfbfillrect cfbimgblt cfbcopyarea
<4>[  672.470719] CPU: 1 PID: 5477 Comm: kworker/u4:37 Tainted: G        W     
3.16.0_drm-intel-nightly_186631_20140818+ #1538
<3>[  672.470974] [drm:i915_pm_suspend_late] *ERROR* Suspend complete failed:
-19

Reproduce steps:
-------------------------
1. ./kms_flip --run-subtest vblank-vs-dpms-suspend

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