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<body><span class="vcard"><a class="email" href="mailto:martin.peres@free.fr" title="Martin Peres <martin.peres@free.fr>"> <span class="fn">Martin Peres</span></a>
</span> changed
<a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - [CI] igt@kms_* - dmesg-warn - unknown DP link BW code .., using 162000"
href="https://bugs.freedesktop.org/show_bug.cgi?id=106207">bug 106207</a>
<br>
<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>CLOSED
</td>
<td>REOPENED
</td>
</tr>
<tr>
<td style="text-align:right;">Priority</td>
<td>medium
</td>
<td>high
</td>
</tr>
<tr>
<td style="text-align:right;">Resolution</td>
<td>WORKSFORME
</td>
<td>---
</td>
</tr></table>
<p>
<div>
<b><a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - [CI] igt@kms_* - dmesg-warn - unknown DP link BW code .., using 162000"
href="https://bugs.freedesktop.org/show_bug.cgi?id=106207#c3">Comment # 3</a>
on <a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - [CI] igt@kms_* - dmesg-warn - unknown DP link BW code .., using 162000"
href="https://bugs.freedesktop.org/show_bug.cgi?id=106207">bug 106207</a>
from <span class="vcard"><a class="email" href="mailto:martin.peres@free.fr" title="Martin Peres <martin.peres@free.fr>"> <span class="fn">Martin Peres</span></a>
</span></b>
<pre>It's back, and it spammed one fast feedback run (tens of tests):
<a href="https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_4451_74/fi-bsw-n3050/igt@gem_exec_suspend@basic-s3.html">https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_4451_74/fi-bsw-n3050/igt@gem_exec_suspend@basic-s3.html</a>
<a href="https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_4451_74/fi-bsw-n3050/igt@kms_cursor_legacy@basic-flip-before-cursor-varying-size.html">https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_4451_74/fi-bsw-n3050/igt@kms_cursor_legacy@basic-flip-before-cursor-varying-size.html</a>
...
[ 449.449754] WARNING: CPU: 0 PID: 25 at drivers/gpu/drm/drm_dp_helper.c:173
drm_dp_bw_code_to_link_rate+0x3b/0x50
[ 449.449764] ---[ end trace 6bd9f326a24d40c7 ]---
[ 449.672376] ------------[ cut here ]------------
[ 449.672389] unknown DP link BW code 11, using 162000
[ 449.672442] WARNING: CPU: 0 PID: 25 at drivers/gpu/drm/drm_dp_helper.c:173
drm_dp_bw_code_to_link_rate+0x3b/0x50
[ 449.672454] Modules linked in: vgem btusb btrtl btbcm btintel bluetooth
snd_hda_codec_hdmi ecdh_generic snd_hda_codec_realtek snd_hda_codec_generic
i915 intel_powerclamp coretemp snd_hda_intel crct10dif_pclmul crc32_pclmul
ghash_clmulni_intel snd_hda_codec snd_hwdep snd_hda_core snd_pcm r8169 mii
lpc_ich prime_numbers pinctrl_cherryview
[ 449.672758] CPU: 0 PID: 25 Comm: kworker/0:1 Tainted: G U W
4.18.0-rc3-g7ae7763aa2be-repeat_6+ #1
[ 449.672770] Hardware name: /NUC5CPYB, BIOS PYBSWCEL.86A.0058.2016.1102.1842
11/02/2016
[ 449.672927] Workqueue: events i915_hpd_poll_init_work [i915]
[ 449.672954] RIP: 0010:drm_dp_bw_code_to_link_rate+0x3b/0x50
[ 449.672965] Code: 74 0b 40 80 ff 1e b8 10 5c 0c 00 75 0d f3 c3 40 80 ff 06
b8 d0 78 02 00 74 f3 40 0f b6 f7 48 c7 c7 30 a1 0c 98 e8 15 52 aa ff <0f> 0b b8
d0 78 02 00 c3 b8 b0 1e 04 00 c3 0f 1f 80 00 00 00 00 48
[ 449.673575] RSP: 0018:ffffb219c00ebc98 EFLAGS: 00010282
[ 449.673597] RAX: 0000000000000000 RBX: ffff920c250c8110 RCX:
0000000000000001
[ 449.673608] RDX: 0000000080000001 RSI: ffffffff98085066 RDI:
00000000ffffffff
[ 449.673618] RBP: ffff920c250c8110 R08: 00000000a8b3493f R09:
0000000000000000
[ 449.673630] R10: 0000000000000000 R11: 0000000000000000 R12:
ffff920c24200000
[ 449.673641] R13: ffff920c24486678 R14: 0000000000000001 R15:
0000000000000000
[ 449.673652] FS: 0000000000000000(0000) GS:ffff920c3fc00000(0000)
knlGS:0000000000000000
[ 449.673664] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 449.673675] CR2: 00007f3878168000 CR3: 0000000163c80000 CR4:
00000000001006f0
[ 449.673685] Call Trace:
[ 449.673838] intel_dp_set_sink_rates+0xd/0x70 [i915]
[ 449.673990] intel_dp_get_dpcd.part.33+0x27/0xd0 [i915]
[ 449.674148] intel_dp_detect+0x1af/0x4d0 [i915]
[ 449.674184] drm_helper_probe_detect_ctx+0x67/0xd0
[ 449.674238] drm_helper_hpd_irq_event+0xa5/0x120
[ 449.674408] i915_hpd_poll_init_work+0xc6/0x100 [i915]
[ 449.674443] process_one_work+0x248/0x6c0
[ 449.674486] worker_thread+0x1fb/0x380
[ 449.674512] ? process_one_work+0x6c0/0x6c0
[ 449.674527] kthread+0x119/0x130
[ 449.674543] ? kthread_flush_work_fn+0x10/0x10
[ 449.674571] ret_from_fork+0x3a/0x50
[ 449.674630] irq event stamp: 591836
[ 449.674646] hardirqs last enabled at (591835): [<ffffffff970fc74c>]
console_unlock+0x3fc/0x600
[ 449.674659] hardirqs last disabled at (591836): [<ffffffff97a0111c>]
error_entry+0x7c/0x100
[ 449.674672] softirqs last enabled at (591704): [<ffffffff97c0034f>]
__do_softirq+0x34f/0x505
[ 449.674687] softirqs last disabled at (591695): [<ffffffff970904d9>]
irq_exit+0xa9/0xc0
[ 449.674703] WARNING: CPU: 0 PID: 25 at drivers/gpu/drm/drm_dp_helper.c:173
drm_dp_bw_code_to_link_rate+0x3b/0x50
[ 449.674715] ---[ end trace 6bd9f326a24d40c8 ]---</pre>
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