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<head>
<base href="https://bugs.freedesktop.org/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [BayTrail-M] [drm:intel_pipe_config_compare] *ERROR* mismatch in clock (expected 146250, found 0)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=67345">67345</a>
</td>
</tr>
<tr>
<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>[BayTrail-M] [drm:intel_pipe_config_compare] *ERROR* mismatch in clock (expected 146250, found 0)
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</td>
</tr>
<tr>
<th>Reporter</th>
<td>guang.a.yang@intel.com
</td>
</tr>
<tr>
<th>Hardware</th>
<td>All
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Component</th>
<td>DRM/Intel
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=83027" name="attach_83027" title="dmesg after booting">attachment 83027</a> <a href="attachment.cgi?id=83027&action=edit" title="dmesg after booting">[details]</a></span>
dmesg after booting
System Environment:
--------------------------------------------
Kernel: (drm-intel-nightly)d861e3387650296f1fca2a4dd0dcd380c8fdddad
Some additional commit info:
Author: Daniel Vetter <<a href="mailto:daniel.vetter@ffwll.ch">daniel.vetter@ffwll.ch</a>>
Date: Wed Jul 24 23:25:03 2013 +0200
drm/i915: fix reference counting in i915_gem_create
Bug detail Description:
--------------------------------------------
On our BayTrail platform has *ERROR* mismatch in clock (expected 146250, found
0) and Call Trace in dmesg after booting just like this:
[ 1.881475] [drm:intel_pipe_config_compare] *ERROR* mismatch in clock
(expected 146250, found 0)
[ 1.881478] ------------[ cut here ]------------
[ 1.881605] WARNING: at drivers/gpu/drm/i915/intel_display.c:8570
check_crtc_state+0x6ba/0x701 [i915]()
[ 1.881606] pipe state doesn't match!
[ 1.881612] Modules linked in: i915(+) drm_kms_helper drm video button
[ 1.881616] CPU: 2 PID: 1164 Comm: systemd-udevd Not tainted
3.10.0-rc7_drm-intel-next-queued_d861e3_20130725_+ #6160
[ 1.881618] Hardware name: Intel Corp. VALLEYVIEW B0 PLATFORM/NOTEBOOK, BIOS
BBAYCRB1.X64.0047.R21.1306111752 BBAY_X64_R_v47_21 06/11/2013
[ 1.881622] ffffffff816e7c25 0000000000000000 ffffffff8102c53d
ffff88003f9e1320
[ 1.881625] ffff88003f9e1328 0000000000000000 ffff8800753ba000
ffff88003f99d800
[ 1.881628] ffff88003f9e1398 ffff88006e0bc000 ffffffff8102c5ed
ffffffffa00bfad2
[ 1.881629] Call Trace:
[ 1.881637] [<ffffffff816e7c25>] ? dump_stack+0xd/0x17
[ 1.881643] [<ffffffff8102c53d>] ? warn_slowpath_common+0x5f/0x77
[ 1.881647] [<ffffffff8102c5ed>] ? warn_slowpath_fmt+0x45/0x4a
[ 1.881680] [<ffffffffa007c495>] ? check_crtc_state+0x6ba/0x701 [i915]
[ 1.881720] [<ffffffffa0085b58>] ? intel_modeset_check_state+0x36f/0x5e8
[i915]
[ 1.881753] [<ffffffffa0085e41>] ? intel_set_mode+0x1d/0x27 [i915]
[ 1.881787] [<ffffffffa0086441>] ? intel_crtc_set_config+0x5f6/0x7e5 [i915]
[ 1.881799] [<ffffffffa001ad86>] ? drm_mode_set_config_internal+0x44/0xac
[drm]
[ 1.881805] [<ffffffffa0052c6e>] ? drm_fb_helper_set_par+0x55/0x9a
[drm_kms_helper]
[ 1.881810] [<ffffffff812eec02>] ? fbcon_init+0x2ff/0x408
[ 1.881815] [<ffffffff8133aed8>] ? visual_init+0xaf/0x102
[ 1.881818] [<ffffffff8133c77f>] ? do_bind_con_driver+0x1a1/0x2ca
[ 1.881822] [<ffffffff8133c920>] ? do_take_over_console+0x33/0x3e
[ 1.881826] [<ffffffff812ee2ef>] ? do_fbcon_takeover+0x53/0x96
[ 1.881830] [<ffffffff816efcac>] ? notifier_call_chain+0x2e/0x59
[ 1.881835] [<ffffffff81048e1b>] ? __blocking_notifier_call_chain+0x43/0x5d
[ 1.881838] [<ffffffff812e6231>] ? register_framebuffer+0x21d/0x284
[ 1.881843] [<ffffffffa0052b6a>] ? drm_fb_helper_initial_config+0x3aa/0x459
[drm_kms_helper]
[ 1.881854] [<ffffffffa0019455>] ? drm_mode_config_reset+0xad/0xcc [drm]
[ 1.881858] [<ffffffff810c9ab7>] ? __kmalloc+0x63/0xf3
[ 1.881885] [<ffffffffa005cd6f>] ? i915_write32+0x6d/0x94 [i915]
[ 1.881913] [<ffffffffa006009e>] ? i915_driver_load+0xc37/0xe1f [i915]
[ 1.881917] [<ffffffff81624753>] ? pcibios_allocate_resources+0x1d9/0x1d9
[ 1.881923] [<ffffffff81354818>] ? get_device+0x10/0x1c
[ 1.881935] [<ffffffffa0016ca5>] ? drm_get_pci_dev+0x14d/0x254 [drm]
[ 1.881939] [<ffffffff81357f4a>] ? driver_probe_device+0x19e/0x19e
[ 1.881944] [<ffffffff812d6a61>] ? local_pci_probe+0x16/0x26
[ 1.881947] [<ffffffff812d731f>] ? pci_device_probe+0xbc/0xe0
[ 1.881951] [<ffffffff81357e36>] ? driver_probe_device+0x8a/0x19e
[ 1.881954] [<ffffffff81357f9d>] ? __driver_attach+0x53/0x73
[ 1.881957] [<ffffffff813566f8>] ? bus_for_each_dev+0x4b/0x7c
[ 1.881961] [<ffffffff8135766f>] ? bus_add_driver+0xdc/0x1fb
[ 1.881964] [<ffffffff813584bc>] ? driver_register+0x89/0x101
[ 1.881967] [<ffffffffa00d8000>] ? 0xffffffffa00d7fff
[ 1.881971] [<ffffffff81000257>] ? do_one_initcall+0x75/0x102
[ 1.881977] [<ffffffff8106c9ad>] ? load_module+0x17b2/0x1a8a
[ 1.881980] [<ffffffff81069b4c>] ? sys_getegid16+0x40/0x40
[ 1.881985] [<ffffffff8106a1f9>] ? copy_module_from_fd+0xcc/0xe2
[ 1.881989] [<ffffffff8106cd7e>] ? SyS_finit_module+0x4e/0x62
[ 1.881994] [<ffffffff816f1fd2>] ? system_call_fastpath+0x16/0x1b
[ 1.881996] ---[ end trace 3e81be0dc5f9fb94 ]---
our platform is :
00:00.0 Host bridge [0600]: Intel Corporation ValleyView SSA-CUnit [8086:0f00]
00:02.0 VGA compatible controller [0300]: Intel Corporation ValleyView Gen7
[8086:0f31]
I attach the dmesg after booting.
Reproduce Steps:
---------------------------------------------
1.booting up machine
2.dmesg | grep "ERROR"</pre>
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