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<body><span class="vcard"><a class="email" href="mailto:jwrdegoede@fedoraproject.org" title="Hans de Goede <jwrdegoede@fedoraproject.org>"> <span class="fn">Hans de Goede</span></a>
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<a class="bz_bug_link
bz_status_NEW "
title="NEW - [BAT][BYT] WARN intel_uncore.c:792 __unclaimed_reg_debug (reg 0x1f0034)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=101705">bug 101705</a>
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<td>jwrdegoede@fedoraproject.org
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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [BAT][BYT] WARN intel_uncore.c:792 __unclaimed_reg_debug (reg 0x1f0034)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=101705#c1">Comment # 1</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [BAT][BYT] WARN intel_uncore.c:792 __unclaimed_reg_debug (reg 0x1f0034)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=101705">bug 101705</a>
from <span class="vcard"><a class="email" href="mailto:jwrdegoede@fedoraproject.org" title="Hans de Goede <jwrdegoede@fedoraproject.org>"> <span class="fn">Hans de Goede</span></a>
</span></b>
<pre>Just adding a me too comment here. FWIW here is my almost identical backtrace:
[ 56.955016] PM: early resume of devices complete after 1068.631 msecs
[ 56.956396] pcieport 0000:00:1c.0: System wakeup disabled by ACPI
[ 56.957697] rtc_cmos 00:04: System wakeup disabled by ACPI
[ 56.958261] Suspended for 0.888 seconds
[ 56.964250] Unclaimed read from register 0x1f0034
[ 56.964347] ------------[ cut here ]------------
[ 56.964428] WARNING: CPU: 2 PID: 1799 at
drivers/gpu/drm/i915/intel_uncore.c:801 __unclaimed_reg_debug+0x4e/0x60 [i915]
...
[ 56.964590] Workqueue: events_unbound async_run_entry_fn
[ 56.964594] task: ffff89ad698b0000 task.stack: ffff9ba401454000
[ 56.964662] RIP: 0010:__unclaimed_reg_debug+0x4e/0x60 [i915]
...
[ 56.964688] Call Trace:
[ 56.964758] fwtable_read32+0x17a/0x1d0 [i915]
[ 56.964818] vlv_program_watermarks+0x3c4/0x610 [i915]
[ 56.964883] ? intel_hdmi_get_hw_state+0x27/0xd0 [i915]
[ 56.964941] vlv_optimize_watermarks+0x95/0xb0 [i915]
[ 56.965008] intel_atomic_commit_tail+0x2e2/0x1030 [i915]
[ 56.965016] ? tracing_record_cmdline+0x32/0x120
[ 56.965022] ? __schedule+0x23e/0x860
[ 56.965090] intel_atomic_commit+0x399/0x4b0 [i915]
[ 56.965125] ? drm_atomic_check_only+0x37f/0x540 [drm]
[ 56.965155] drm_atomic_commit+0x4b/0x50 [drm]
[ 56.965174] drm_atomic_helper_commit_duplicated_state+0xc2/0xd0
[drm_kms_helper]
[ 56.965245] __intel_display_resume+0x85/0xc0 [i915]
[ 56.965312] intel_display_resume+0xf7/0x120 [i915]
[ 56.965370] i915_drm_resume+0xe1/0x180 [i915]
[ 56.965427] i915_pm_resume+0x1e/0x30 [i915]
[ 56.965434] pci_pm_resume+0x65/0xa0
[ 56.965440] dpm_run_callback+0x57/0x140
[ 56.965444] ? pci_pm_thaw+0x90/0x90
[ 56.965447] device_resume+0xe1/0x200
[ 56.965450] async_resume+0x1d/0x50
[ 56.965455] async_run_entry_fn+0x39/0x170
[ 56.965460] process_one_work+0x193/0x3c0
...
[ 57.062736] PM: resume of devices complete after 107.709 msecs
[ 57.063468] PM: resume devices took 0.108 seconds
[ 57.063478] PM: Finishing wakeup.
Regards,
Hans</pre>
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