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<body><span class="vcard"><a class="email" href="mailto:hengx.ding@intel.com" title="Ding Heng <hengx.ding@intel.com>"> <span class="fn">Ding Heng</span></a>
</span> changed
<a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - [ILK]igt/drv_suspend/sysfs-reader cause dmesg warn."
href="https://bugs.freedesktop.org/show_bug.cgi?id=88911">bug 88911</a>
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<table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
</tr>
<tr>
<td style="text-align:right;">Status</td>
<td>VERIFIED
</td>
<td>REOPENED
</td>
</tr>
<tr>
<td style="text-align:right;">Resolution</td>
<td>FIXED
</td>
<td>---
</td>
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<b><a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - [ILK]igt/drv_suspend/sysfs-reader cause dmesg warn."
href="https://bugs.freedesktop.org/show_bug.cgi?id=88911#c8">Comment # 8</a>
on <a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - [ILK]igt/drv_suspend/sysfs-reader cause dmesg warn."
href="https://bugs.freedesktop.org/show_bug.cgi?id=88911">bug 88911</a>
from <span class="vcard"><a class="email" href="mailto:hengx.ding@intel.com" title="Ding Heng <hengx.ding@intel.com>"> <span class="fn">Ding Heng</span></a>
</span></b>
<pre>When test with DP monitor, I will get following dmesg every time.
dmesg -r|egrep "<[1-4]>"|grep drm
<4>[ 42.560904] WARNING: CPU: 3 PID: 4124 at drivers/gpu/drm/drm_irq.c:1129
drm_wait_one_vblank+0x2c/0x131 [drm]()
<4>[ 42.560928] Modules linked in: snd_hda_codec_hdmi snd_hda_codec_idt
snd_hda_codec_generic iTCO_wdt iTCO_vendor_support dm_mod ppdev dcdbas i8k
pcspkr i2c_i801 lpc_ich mfd_core firewire_ohci snd_hda_intel snd_hda_controller
snd_hda_codec bcma snd_hwdep snd_pcm firewire_core snd_timer crc_itu_t snd
soundcore wmi battery parport_pc parport tpm_tis tpm ac acpi_cpufreq joydev
i915 button video drm_kms_helper drm
<4>[ 42.560978] [<f804d313>] ? drm_wait_one_vblank+0x2c/0x131 [drm]
<4>[ 42.560993] [<f804d313>] ? drm_wait_one_vblank+0x2c/0x131 [drm]
<4>[ 42.561218] [<f856f751>] ? i915_drm_suspend+0xb5/0x188 [i915]
<4>[ 97.100640] WARNING: CPU: 0 PID: 6 at drivers/gpu/drm/drm_irq.c:1129
drm_wait_one_vblank+0x2c/0x131 [drm]()
<4>[ 97.100666] Modules linked in: snd_hda_codec_hdmi snd_hda_codec_idt
snd_hda_codec_generic iTCO_wdt iTCO_vendor_support dm_mod ppdev dcdbas i8k
pcspkr i2c_i801 lpc_ich mfd_core firewire_ohci snd_hda_intel snd_hda_controller
snd_hda_codec bcma snd_hwdep snd_pcm firewire_core snd_timer crc_itu_t snd
soundcore wmi battery parport_pc parport tpm_tis tpm ac acpi_cpufreq joydev
i915 button video drm_kms_helper drm
<4>[ 97.100700] [<f804d313>] ? drm_wait_one_vblank+0x2c/0x131 [drm]
<4>[ 97.100709] [<f804d313>] ? drm_wait_one_vblank+0x2c/0x131 [drm]
<4>[ 97.100850] [<f856f751>] ? i915_drm_suspend+0xb5/0x188 [i915]</pre>
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