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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>high
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [HSW Regression]igt/pm_rpm/system-suspend cause " WARNING: CPU: 7 PID: 786 at drivers/gpu/drm/i915/i915_gem.c:1644 i915_gem_release_all_mmaps+0x28/0x7e [i915]()""
href="https://bugs.freedesktop.org/show_bug.cgi?id=80081">80081</a>
</td>
</tr>
<tr>
<th>Keywords</th>
<td>bisect_pending
</td>
</tr>
<tr>
<th>CC</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>[HSW Regression]igt/pm_rpm/system-suspend cause " WARNING: CPU: 7 PID: 786 at drivers/gpu/drm/i915/i915_gem.c:1644 i915_gem_release_all_mmaps+0x28/0x7e [i915]()"
</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>jinxianx.guo@intel.com
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Other
</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=101147" name="attach_101147" title="dmesg">attachment 101147</a> <a href="attachment.cgi?id=101147&action=edit" title="dmesg">[details]</a></span>
dmesg
==System Environment==
--------------------------
Regression: Yes.
Good commit on -next-queued: e6a7e5d0fd778bc6cf295414b9937723091c9bb6
Non-working platforms: HSW
==kernel==
--------------------------
origin/drm-intel-nightly: b438e8793c6d18b0998d75cdf8115a5898ed21d1(fails)
drm-intel-nightly: 2014y-06m-13d-22h-09m-12s integration manifest
origin/drm-intel-next-queued: 868d665b43473e230d560d5186535270a3d57a19(fails)
drm/i915: Fix memory leak in intel_dsi_init() error path
origin/drm-intel-fixes: 223a6f2b975ab35d93270ea1d4fb6e0ac6b27fe6(fails)
drm/i915/bdw: remove erroneous chv specific workarounds from bdw code
==Bug detailed description==
-----------------------------
igt/pm_rpm/system-suspend cause " WARNING: CPU: 7 PID: 786 at
drivers/gpu/drm/i915/i915_gem.c:1644 i915_gem_release_all_mmaps+0x28/0x7e
[i915]()"
Dmesg shows:
[ 834.731242] WARNING: CPU: 7 PID: 786 at drivers/gpu/drm/i915/i915_gem.c:1644
i915_gem_release_all_mmaps+0x28/0x7e [i915]()
[ 834.731243] Modules linked in: ip6table_filter ip6_tables ebtable_nat
ebtables nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ipt_REJECT
iptable_mangle xt_tcpudp iptable_filter ip_tables x_tables bridge stp llc ipv6
dm_mod snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec_hdmi iTCO_wdt
iTCO_vendor_support firewire_ohci pcspkr serio_raw i2c_i801 firewire_core
crc_itu_t lpc_ich snd_hda_intel mfd_core snd_hda_controller snd_hda_codec
snd_hwdep snd_pcm snd_timer snd soundcore battery wmi acpi_cpufreq i915 video
button drm_kms_helper drm
[ 834.731259] CPU: 7 PID: 786 Comm: kworker/7:1 Not tainted
3.15.0-rc8_drm-intel-next-queued_868d66_20140616+ #3606
[ 834.731260] Hardware name: /DZ87KLT75K, BIOS
KLZ8711D.86A.0336.2013.0516.1957 05/16/2013
[ 834.731263] Workqueue: pm pm_runtime_work
[ 834.731264] 0000000000000000 0000000000000009 ffffffff817722c4
0000000000000000
[ 834.731266] ffffffff81036e54 ffff880255affca0 ffffffffa007f3ab
ffff880255affcf8
[ 834.731267] ffff880250dd0000 ffff880256268898 ffff880250dd7908
ffff88025175a060
[ 834.731269] Call Trace:
[ 834.731273] [<ffffffff817722c4>] ? dump_stack+0x41/0x51
[ 834.731276] [<ffffffff81036e54>] ? warn_slowpath_common+0x78/0x90
[ 834.731281] [<ffffffffa007f3ab>] ? i915_gem_release_all_mmaps+0x28/0x7e
[i915]
[ 834.731287] [<ffffffffa007f3ab>] ? i915_gem_release_all_mmaps+0x28/0x7e
[i915]
[ 834.731291] [<ffffffffa0065458>] ? intel_runtime_suspend+0xe2/0x812 [i915]
[ 834.731295] [<ffffffff81342af8>] ? pci_pm_runtime_suspend+0x60/0x119
[ 834.731296] [<ffffffff813cf058>] ? __rpm_callback+0x28/0x4c
[ 834.731298] [<ffffffff813cf0c7>] ? rpm_callback+0x4b/0x69
[ 834.731299] [<ffffffff813cf62c>] ? rpm_suspend+0x262/0x417
[ 834.731304] [<ffffffffa0070cf3>] ? intel_gen6_powersave_work+0xf0f/0xf1e
[i915]
[ 834.731306] [<ffffffff813d03e3>] ? pm_runtime_work+0x65/0x7b
[ 834.731308] [<ffffffff8104aade>] ? process_one_work+0x1e2/0x363
[ 834.731310] [<ffffffff8104b385>] ? worker_thread+0x1c7/0x2bc
[ 834.731312] [<ffffffff8104b1be>] ? manage_workers.isra.23+0x1b5/0x1b5
[ 834.731314] [<ffffffff8104fb32>] ? kthread+0xc5/0xcd
[ 834.731315] [<ffffffff8104fa6d>] ? kthread_freezable_should_stop+0x40/0x40
[ 834.731318] [<ffffffff8177e0bc>] ? ret_from_fork+0x7c/0xb0
[ 834.731319] [<ffffffff8104fa6d>] ? kthread_freezable_should_stop+0x40/0x40
==Reproduce steps==
----------------------------
1. ./pm_rpm --run-subtest system-suspend</pre>
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