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<base href="https://bugs.freedesktop.org/">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - System stall on Supermicro SKL boards on drm-tip"
href="https://bugs.freedesktop.org/show_bug.cgi?id=105949">105949</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>System stall on Supermicro SKL boards on drm-tip
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Other
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux (All)
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Component</th>
<td>DRM/Intel
</td>
</tr>
<tr>
<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>dmitry.ermilov@intel.com
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>CC</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr></table>
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<div>
<pre>Created <span class=""><a href="attachment.cgi?id=138696" name="attach_138696" title="dmesg_drm-tip_4.16.0-rc7+">attachment 138696</a> <a href="attachment.cgi?id=138696&action=edit" title="dmesg_drm-tip_4.16.0-rc7+">[details]</a></span>
dmesg_drm-tip_4.16.0-rc7+
It occurs that Supermicro boards can't be booted using drm-tip.
We see the issue on specifically this hardware:
* Supermicro SYS-5019S-ML/X11SSH-F, BIOS 2.0c 10/06/2017
* video card device ID 0x191d
OS:
CentOS 7 (7.4), kernel updated to drm-tip taken last week @ this revision:
commit 29940f138482ff38047287ad288cea1fcf1f73b4
Author: Oleksandr Andrushchenko <<a href="mailto:oleksandr_andrushchenko@epam.com">oleksandr_andrushchenko@epam.com</a>>
Date: Tue Apr 3 16:24:20 2018 +0300
drm-tip: 2018y-04m-03d-13h-23m-36s UTC integration manifest
An important note:
The systems can be loaded with additional parameters:
"intel_pstate=disable intel_idle.max_cstate=1"
however we see warnings from i915:
[ 2.978031] [drm:skl_set_cdclk [i915]] *ERROR* DPLL0 not locked
[ 2.991381] WARNING: CPU: 7 PID: 312 at
drivers/gpu/drm/i915/intel_cdclk.c:826 skl_get_cdclk+0x228/0x260 [i915]
[ 3.004969] Modules linked in: i915(+) uas usb_storage sd_mod drm_kms_helper
syscopyarea sysfillrect sysimgblt fb_sys_fops drm igb ahci libahci libata dca
crc32c_intel i2c_algo_bit i2c_core video
[ 3.034581] RIP: 0010:skl_get_cdclk+0x228/0x260 [i915]
[ 3.131641] intel_update_cdclk+0x1c/0x60 [i915]
[ 3.139084] skl_init_cdclk+0xe2/0x1c0 [i915]
[ 3.146531] intel_power_domains_init_hw+0x70c/0x9a0 [i915]
[ 3.153976] i915_driver_load+0x455/0xf20 [i915]
[ 3.374369] WARNING: CPU: 7 PID: 312 at
drivers/gpu/drm/i915/intel_cdclk.c:826 skl_get_cdclk+0x228/0x260 [i915]
[ 3.399330] WARNING: CPU: 7 PID: 312 at
drivers/gpu/drm/i915/intel_cdclk.c:826 skl_get_cdclk+0x228/0x260 [i915]
[ 3.411999] Modules linked in: i915(+) uas usb_storage sd_mod drm_kms_helper
syscopyarea sysfillrect sysimgblt fb_sys_fops drm igb ahci libahci libata dca
crc32c_intel i2c_algo_bit i2c_core video
[ 3.439025] RIP: 0010:skl_get_cdclk+0x228/0x260 [i915]
[ 3.531009] gen9_dc_off_power_well_enable+0x52/0x210 [i915]
[ 3.538334] intel_power_well_enable+0x36/0x40 [i915]
[ 3.545707] __intel_display_power_get_domain+0x7c/0x90 [i915]
[ 3.553179] intel_display_power_get+0x2e/0x40 [i915]
[ 3.560683] intel_display_set_init_power+0x33/0x40 [i915]
[ 3.568215] intel_power_domains_init_hw+0x6e/0x9a0 [i915]
[ 3.575766] i915_driver_load+0x455/0xf20 [i915]
[ 3.799758] WARNING: CPU: 7 PID: 312 at
drivers/gpu/drm/i915/intel_cdclk.c:826 skl_get_cdclk+0x228/0x260 [i915]
[ 3.818843] [drm] Finished loading DMC firmware i915/skl_dmc_ver1_27.bin
(v1.27)
[ 4.122568] [drm] Initialized i915 1.6.0 20180308 for 0000:00:02.0 on minor
0</pre>
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