https://bugs.freedesktop.org/show_bug.cgi?id=83769
Priority: medium
Bug ID: 83769
CC: intel-gfx-bugs at lists.freedesktop.org
Assignee: intel-gfx-bugs at lists.freedesktop.org
Summary: [HSW-ULT] "SPLL enabled": WARNING: CPU: 3 PID: 168 at
drivers/gpu/drm/i915/intel_display.c:7366
hsw_enable_pc8+0x5b8/0x660
QA Contact: intel-gfx-bugs at lists.freedesktop.org
Severity: normal
Classification: Unclassified
OS: Linux (All)
Reporter: imre.deak at gmail.com
Hardware: All
Status: NEW
Version: unspecified
Component: DRM/Intel
Product: DRI
After a couple of S3 suspend/resume cycles there is the following warning:
[ 95.314519] WARNING: CPU: 3 PID: 168 at
drivers/gpu/drm/i915/intel_display.c:7366 hsw_enable_pc8+0x5b8/0x660 [i915]()
[ 95.314520] SPLL enabled
[ 95.314540] Modules linked in: ctr(E) ccm(E) arc4(E) iwlmvm(E) mac80211(E)
intel_rapl(E) x86_pkg_temp_thermal(E) intel_powerclamp(E) coretemp(E)
kvm_intel(E) kvm(E) joydev(E) serio_raw(E) snd_hda_codec_realtek(E)
snd_hda_codec_hdmi(E) snd_hda_codec_generic(E) iwlwifi(E) btusb(E)
snd_hda_intel(E) snd_hda_controller(E) snd_hda_codec(E) rtsx_pci_ms(E)
snd_hwdep(E) memstick(E) cfg80211(E) snd_pcm(E) snd_seq_midi(E)
snd_seq_midi_event(E) snd_rawmidi(E) snd_seq(E) thinkpad_acpi(E) nvram(E)
snd_seq_device(E) snd_timer(E) intel_smartconnect(E) mac_hid(E) snd(E)
lpc_ich(E) soundcore(E) rfcomm(E) bnep(E) bluetooth(E) binfmt_misc(E)
parport_pc(E) ppdev(E) lp(E) parport(E) nls_iso8859_1(E) sch_fq(E) dm_crypt(E)
rtsx_pci_sdmmc(E) crct10dif_pclmul(E) crc32_pclmul(E) ghash_clmulni_intel(E)
aesni_intel(E) aes_x86_64(E)
[ 95.314547] lrw(E) gf128mul(E) glue_helper(E) ablk_helper(E) cryptd(E)
psmouse(E) ahci(E) libahci(E) rtsx_pci(E) i915(E) i2c_algo_bit(E)
drm_kms_helper(E) e1000e(E) ptp(E) pps_core(E) drm(E) wmi(E) video(E) [last
unloaded: ipmi_msghandler]
[ 95.314550] CPU: 3 PID: 168 Comm: kworker/u16:2 Tainted: G W E
3.17.0-rc4-custom+ #3
[ 95.314551] Hardware name: LENOVO 20AM009DMS/20AM009DMS, BIOS GIET75WW (2.25
) 06/24/2014
[ 95.314555] Workqueue: events_unbound async_run_entry_fn
[ 95.314557] 0000000000000009 ffff8800b6363c88 ffffffff82778f98
ffff8800b6363cd0
[ 95.314559] ffff8800b6363cc0 ffffffff8207132d ffff88022aa30000
ffff88022eaf2b60
[ 95.314560] ffff88022eaf2b70 ffff88022eaf2800 ffffffff82ae514b
ffff8800b6363d20
[ 95.314561] Call Trace:
[ 95.314564] [<ffffffff82778f98>] dump_stack+0x45/0x56
[ 95.314567] [<ffffffff8207132d>] warn_slowpath_common+0x7d/0xa0
[ 95.314570] [<ffffffff8207139c>] warn_slowpath_fmt+0x4c/0x50
[ 95.314591] [<ffffffffc0187fe8>] hsw_enable_pc8+0x5b8/0x660 [i915]
[ 95.314600] [<ffffffffc012d1d0>] ? __i915_drm_thaw+0x1d0/0x1d0 [i915]
[ 95.314609] [<ffffffffc012d22b>] i915_pm_suspend_late+0x5b/0x60 [i915]
[ 95.314611] [<ffffffff824d17fc>] dpm_run_callback+0x4c/0x100
[ 95.314613] [<ffffffff824d1fc0>] __device_suspend_late+0xb0/0x1a0
[ 95.314615] [<ffffffff824d20cf>] async_suspend_late+0x1f/0xa0
[ 95.314617] [<ffffffff820930c7>] async_run_entry_fn+0x37/0x130
[ 95.314620] [<ffffffff8208a53a>] process_one_work+0x18a/0x4a0
[ 95.314622] [<ffffffff8208b22b>] worker_thread+0x6b/0x5d0
[ 95.314625] [<ffffffff8208b1c0>] ? pool_mayday_timeout+0x1b0/0x1b0
[ 95.314627] [<ffffffff820905ab>] kthread+0xdb/0x100
[ 95.314629] [<ffffffff820904d0>] ? kthread_create_on_node+0x180/0x180
[ 95.314632] [<ffffffff82780ebc>] ret_from_fork+0x7c/0xb0
[ 95.314634] [<ffffffff820904d0>] ? kthread_create_on_node+0x180/0x180
[ 95.314635] ---[ end trace 706b297cf8724d66 ]---
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