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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [HSW-ULT] "SPLL enabled": WARNING: CPU: 3 PID: 168 at drivers/gpu/drm/i915/intel_display.c:7366 hsw_enable_pc8+0x5b8/0x660"
href="https://bugs.freedesktop.org/show_bug.cgi?id=83769#c5">Comment # 5</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [HSW-ULT] "SPLL enabled": WARNING: CPU: 3 PID: 168 at drivers/gpu/drm/i915/intel_display.c:7366 hsw_enable_pc8+0x5b8/0x660"
href="https://bugs.freedesktop.org/show_bug.cgi?id=83769">bug 83769</a>
from <span class="vcard"><a class="email" href="mailto:andreas.reis@gmail.com" title="Andreas Reis <andreas.reis@gmail.com>"> <span class="fn">Andreas Reis</span></a>
</span></b>
<pre>Created <span class=""><a href="attachment.cgi?id=118823" name="attach_118823" title="HSW 4770 snd_hda* warnings">attachment 118823</a> <a href="attachment.cgi?id=118823&action=edit" title="HSW 4770 snd_hda* warnings">[details]</a></span>
HSW 4770 snd_hda* warnings
Latest drm-intel-nightly. Noticed I also get this on every suspend with my
4200U (HM87):
[ 4847.185742] PM: suspend of devices complete after 947.984 msecs
[ 4847.190187] ------------[ cut here ]------------
[ 4847.190203] WARNING: CPU: 3 PID: 10228 at
drivers/gpu/drm/i915/intel_display.c:9297 hsw_enable_pc8+0x5f0/0x710()
[ 4847.190204] CPU PWM1 enabled
[ 4847.190223] Modules linked in: f2fs uas usb_storage iwlmvm iwlwifi elan_i2c
nfsd nfs auth_rpcgss oid_registry nfs_acl lockd grace sunrpc ip_tables x_tables
[ 4847.190229] CPU: 3 PID: 10228 Comm: kworker/u8:9 Tainted: G I
4.3.0-1-ck #1
[ 4847.190231] Hardware name: Notebook W840SU Series
/W840SU Series , BIOS 4.6.5 11/26/2013
[ 4847.190239] Workqueue: events_unbound async_run_entry_fn
[ 4847.190245] 0000000000000000 0000000016f72b4a ffff8800a0077c28
ffffffff813fdb09
[ 4847.190249] ffff8800a0077c70 ffff8800a0077c60 ffffffff810eacc2
ffff8800d8e10000
[ 4847.190252] ffff88021513a370 ffff88021513a380 ffff88021513a000
ffffffff81c3b1c3
[ 4847.190253] Call Trace:
[ 4847.190264] [<ffffffff813fdb09>] dump_stack+0x4b/0x72
[ 4847.190270] [<ffffffff810eacc2>] warn_slowpath_common+0x82/0xc0
[ 4847.190273] [<ffffffff810ead5c>] warn_slowpath_fmt+0x5c/0x80
[ 4847.190279] [<ffffffff815d32c0>] hsw_enable_pc8+0x5f0/0x710
[ 4847.190286] [<ffffffff815567d3>] intel_suspend_complete+0x653/0x6e0
[ 4847.190290] [<ffffffff81556882>] i915_drm_suspend_late+0x22/0x80
[ 4847.190294] [<ffffffff815569c0>] ? i915_pm_poweroff_late+0x30/0x30
[ 4847.190297] [<ffffffff815569e7>] i915_pm_suspend_late+0x27/0x30
[ 4847.190306] [<ffffffff81626bae>] dpm_run_callback+0x4e/0x130
[ 4847.190312] [<ffffffff8162764d>] __device_suspend_late+0xfd/0x210
[ 4847.190317] [<ffffffff8162777f>] async_suspend_late+0x1f/0xa0
[ 4847.190320] [<ffffffff8110abd8>] async_run_entry_fn+0x48/0x150
[ 4847.190326] [<ffffffff8110297e>] process_one_work+0x14e/0x440
[ 4847.190330] [<ffffffff81102cb8>] worker_thread+0x48/0x4a0
[ 4847.190336] [<ffffffff819accdd>] ? __schedule+0x33d/0xa40
[ 4847.190339] [<ffffffff81102c70>] ? process_one_work+0x440/0x440
[ 4847.190342] [<ffffffff81102c70>] ? process_one_work+0x440/0x440
[ 4847.190348] [<ffffffff81108508>] kthread+0xd8/0xf0
[ 4847.190354] [<ffffffff81108430>] ? kthread_worker_fn+0x170/0x170
[ 4847.190359] [<ffffffff819b121f>] ret_from_fork+0x3f/0x70
[ 4847.190364] [<ffffffff81108430>] ? kthread_worker_fn+0x170/0x170
[ 4847.190367] ---[ end trace 188d5de2e2080113 ]---
[ 4847.201171] PM: late suspend of devices complete after 15.428 msecs
On my 4770 (Z87, one HDMI monitor) I get no such message, but instead the
attached snd messages.</pre>
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