<html>
<head>
<base href="https://bugs.freedesktop.org/" />
</head>
<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - wakeup after STR causes drivers/gpu/drm/i915/intel_uncore.c:528 hsw_unclaimed_reg_debug.isra.11+0x78/0x90()"
href="https://bugs.freedesktop.org/show_bug.cgi?id=89878">89878</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>wakeup after STR causes drivers/gpu/drm/i915/intel_uncore.c:528 hsw_unclaimed_reg_debug.isra.11+0x78/0x90()
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr>
<tr>
<th>Version</th>
<td>XOrg git
</td>
</tr>
<tr>
<th>Hardware</th>
<td>x86-64 (AMD64)
</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>kaergel@b1-systems.de
</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>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=114833" name="attach_114833" title="complete /var/log/messages">attachment 114833</a> <a href="attachment.cgi?id=114833&action=edit" title="complete /var/log/messages">[details]</a></span>
complete /var/log/messages
Hi,
i recognized the following issue on Lenovo t450s with intel hd550 graphics. OS
is gentoo, kernel version is 3.18.9-gentoo.
Everytime i put the machine in STR (SuspendToRam) this issue occurs after
wakeup:
Apr 2 18:13:31 t450s kernel: ------------[ cut here ]------------
Apr 2 18:13:31 t450s kernel: WARNING: CPU: 0 PID: 3256 at
drivers/gpu/drm/i915/intel_uncore.c:528
hsw_unclaimed_reg_debug.isra.11+0x78/0x90()
Apr 2 18:13:31 t450s kernel: Unclaimed register detected before reading
register 0x130040
Apr 2 18:13:31 t450s kernel: Modules linked in: ipt_MASQUERADE
nf_nat_masquerade_ipv4 iptable_nat nf_nat_ipv4 nf_nat vboxnetadp(O)
vboxnetflt(O) vboxdrv(O) x86_pkg_temp_thermal
Apr 2 18:13:31 t450s kernel: CPU: 0 PID: 3256 Comm: kworker/u16:14 Tainted: G
O 3.18.9-gentoo #13
Apr 2 18:13:31 t450s kernel: Hardware name: LENOVO 20BX000TGE/20BX000TGE, BIOS
JBET39WW (1.04 ) 12/09/2014
Apr 2 18:13:31 t450s kernel: Workqueue: events_unbound async_run_entry_fn
Apr 2 18:13:31 t450s kernel: 0000000000000009 ffff880087507b08
ffffffff819f49b9 ffffffff82042fb8
Apr 2 18:13:31 t450s kernel: ffff880087507b58 ffff880087507b48
ffffffff81090b7c ffff880087507b38
Apr 2 18:13:31 t450s kernel: ffff88034c360060 0000000000130040
0000000000000000 0000000000130040
Apr 2 18:13:31 t450s kernel: Call Trace:
Apr 2 18:13:31 t450s kernel: [<ffffffff819f49b9>] dump_stack+0x46/0x58
Apr 2 18:13:31 t450s kernel: [<ffffffff81090b7c>]
warn_slowpath_common+0x7c/0xa0
Apr 2 18:13:31 t450s kernel: [<ffffffff81090be1>] warn_slowpath_fmt+0x41/0x50
Apr 2 18:13:31 t450s kernel: [<ffffffff81556ee8>]
hsw_unclaimed_reg_debug.isra.11+0x78/0x90
Apr 2 18:13:31 t450s kernel: [<ffffffff81512070>] ?
i915_resume_early+0x50/0x50
Apr 2 18:13:31 t450s kernel: [<ffffffff81559849>] gen6_read32+0x59/0x130
Apr 2 18:13:31 t450s kernel: [<ffffffff8156e377>] hsw_disable_pc8+0x37/0x360
Apr 2 18:13:31 t450s kernel: [<ffffffff81511e4b>]
intel_resume_prepare+0x5bb/0x5e0
Apr 2 18:13:31 t450s kernel: [<ffffffff81512070>] ?
i915_resume_early+0x50/0x50
Apr 2 18:13:31 t450s kernel: [<ffffffff81512070>] ?
i915_resume_early+0x50/0x50
Apr 2 18:13:31 t450s kernel: [<ffffffff81511fae>]
i915_drm_thaw_early+0x1e/0x70
Apr 2 18:13:31 t450s kernel: [<ffffffff81512062>] i915_resume_early+0x42/0x50
Apr 2 18:13:31 t450s kernel: [<ffffffff81512080>]
i915_pm_resume_early+0x10/0x20
Apr 2 18:13:31 t450s kernel: [<ffffffff815ba4c0>] dpm_run_callback+0x40/0x100
Apr 2 18:13:31 t450s kernel: [<ffffffff815ba823>]
device_resume_early+0xb3/0x1a0
Apr 2 18:13:31 t450s kernel: [<ffffffff815ba92c>]
async_resume_early+0x1c/0x50
Apr 2 18:13:31 t450s kernel: [<ffffffff810ae0c6>]
async_run_entry_fn+0x36/0xf0
Apr 2 18:13:31 t450s kernel: [<ffffffff810a6cd8>]
process_one_work+0x148/0x3d0
Apr 2 18:13:31 t450s kernel: [<ffffffff810a7079>] worker_thread+0x119/0x440
Apr 2 18:13:31 t450s kernel: [<ffffffff810a6f60>] ?
process_one_work+0x3d0/0x3d0
Apr 2 18:13:31 t450s kernel: [<ffffffff810ab9c4>] kthread+0xc4/0xe0
Apr 2 18:13:31 t450s kernel: [<ffffffff810ab900>] ?
kthread_create_on_node+0x180/0x180
Apr 2 18:13:31 t450s kernel: [<ffffffff819fdcac>] ret_from_fork+0x7c/0xb0
Apr 2 18:13:31 t450s kernel: [<ffffffff810ab900>] ?
kthread_create_on_node+0x180/0x180
Apr 2 18:13:31 t450s kernel: ---[ end trace 54c0203525a243f6 ]---</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are the QA Contact for the bug.</li>
<li>You are on the CC list for the bug.</li>
<li>You are the assignee for the bug.</li>
</ul>
</body>
</html>