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<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 --- - [SNB/HSW Regression]igt/drv_module_reload causes "WARNING: CPU: 5 PID: 3993 at drivers/gpu/drm/i915/i915_irq.c:154 ironlake_disable_vblank+0x40/0x52 [i915]()""
href="https://bugs.freedesktop.org/show_bug.cgi?id=83868">83868</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>[SNB/HSW Regression]igt/drv_module_reload causes "WARNING: CPU: 5 PID: 3993 at drivers/gpu/drm/i915/i915_irq.c:154 ironlake_disable_vblank+0x40/0x52 [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=106296" name="attach_106296" title="dmesg">attachment 106296</a> <a href="attachment.cgi?id=106296&action=edit" title="dmesg">[details]</a></span>
dmesg
==System Environment==
--------------------------
Regression: Yes.
Good commit on drm-next: 58b21c22c66dd223d27405d54b47102a27bda0b7
Non-working platforms: SNB HSW
==kernel==
--------------------------
origin/drm-intel-nightly:43df30da20447e2856b2761215ff274886a9f931(fails)
drm-intel-nightly: 2014y-09m-12d-15h-35m-20s UTC integration manifest
origin/drm-intel-next-queued:648fb42d1e77cf90cddea2b1cf1f4ac4453e65e6(works)
drm/i915: Extend BIOS stolen mem handling to all platform
origin/drm-intel-fixes: e76c8c5979021483a3a6b480cfe360c644a403c0(works)
drm/i915: Fix SRC_COPY width on 830/845g
origin/drm-fixes: 83502a5d34386f7c6973bc70e1c423f55f5a2e3a(works)
drm/ast: AST2000 cannot be detected correctly
origin/drm-next: edbaae5a5cab89de0e64b8c03ebd9a8d5d266550(fails)
Merge tag 'topic/vblank-rework-2014-09-12' of
git://anongit.freedesktop.org/drm-intel into drm-next
==Bug detailed description==
-----------------------------
igt/drv_module_reload causes "WARNING: CPU: 5 PID: 3993 at
drivers/gpu/drm/i915/i915_irq.c:154 ironlake_disable_vblank+0x40/0x52 [i915]()"
Output:
[root@x-hsw24 tests]# ./drv_module_reload
unbinding /sys/class/vtconsole/vtcon0/: (M) frame buffer device
module successfully unloaded
[root@x-hsw24 tests]# echo $?
0
[root@x-hsw24 tests]# dmesg -r|egrep ""<[1-4]>""|grep drm
<4>[ 65.503283] WARNING: CPU: 5 PID: 3993 at
drivers/gpu/drm/i915/i915_irq.c:154 ironlake_disable_vblank+0x40/0x52 [i915]()
<4>[ 65.503285] Modules linked in: dm_mod snd_hda_codec_realtek
snd_hda_codec_generic iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi dcdbas
serio_raw pcspkr i2c_i801 snd_hda_controller lpc_ich snd_hda_codec mfd_core
snd_hwdep shpchp snd_pcm snd_timer snd soundcore battery acpi_cpufreq i915(-)
button video drm_kms_helper drm cfbfillrect cfbimgblt cfbcopyarea [last
unloaded: snd_hda_intel]
<4>[ 65.503301] CPU: 5 PID: 3993 Comm: rmmod Not tainted
3.17.0-rc4_drm-intel-nightly_43df30_20140915+ #2476
<4>[ 65.503339] [<ffffffffa0010fa4>] ? vblank_disable_and_save+0x74/0x17f
[drm]
<4>[ 65.503347] [<ffffffffa00121f3>] ? drm_vblank_cleanup+0x48/0x7c [drm]
<4>[ 65.503359] [<ffffffffa0013117>] ? drm_dev_unregister+0x1e/0x8b [drm]
<4>[ 65.503363] [<ffffffffa00139a3>] ? drm_put_dev+0x45/0x4e [drm]
<4>[ 65.503381] [<ffffffffa0015221>] ? drm_pci_exit+0x39/0x9c [drm]
<4>[ 65.503403] WARNING: CPU: 5 PID: 3993 at
drivers/gpu/drm/i915/i915_irq.c:154 ironlake_disable_vblank+0x40/0x52 [i915]()
<4>[ 65.503404] Modules linked in: dm_mod snd_hda_codec_realtek
snd_hda_codec_generic iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi dcdbas
serio_raw pcspkr i2c_i801 snd_hda_controller lpc_ich snd_hda_codec mfd_core
snd_hwdep shpchp snd_pcm snd_timer snd soundcore battery acpi_cpufreq i915(-)
button video drm_kms_helper drm cfbfillrect cfbimgblt cfbcopyarea [last
unloaded: snd_hda_intel]
<4>[ 65.503418] CPU: 5 PID: 3993 Comm: rmmod Tainted: G W
3.17.0-rc4_drm-intel-nightly_43df30_20140915+ #2476
<4>[ 65.503449] [<ffffffffa0010fa4>] ? vblank_disable_and_save+0x74/0x17f
[drm]
<4>[ 65.503455] [<ffffffffa00121f3>] ? drm_vblank_cleanup+0x48/0x7c [drm]
<4>[ 65.503466] [<ffffffffa0013117>] ? drm_dev_unregister+0x1e/0x8b [drm]
<4>[ 65.503470] [<ffffffffa00139a3>] ? drm_put_dev+0x45/0x4e [drm]
<4>[ 65.503486] [<ffffffffa0015221>] ? drm_pci_exit+0x39/0x9c [drm]
<4>[ 65.503505] WARNING: CPU: 5 PID: 3993 at
drivers/gpu/drm/i915/i915_irq.c:154 ironlake_disable_vblank+0x40/0x52 [i915]()
<4>[ 65.503506] Modules linked in: dm_mod snd_hda_codec_realtek
snd_hda_codec_generic iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi dcdbas
serio_raw pcspkr i2c_i801 snd_hda_controller lpc_ich snd_hda_codec mfd_core
snd_hwdep shpchp snd_pcm snd_timer snd soundcore battery acpi_cpufreq i915(-)
button video drm_kms_helper drm cfbfillrect cfbimgblt cfbcopyarea [last
unloaded: snd_hda_intel]
<4>[ 65.503520] CPU: 5 PID: 3993 Comm: rmmod Tainted: G W
3.17.0-rc4_drm-intel-nightly_43df30_20140915+ #2476
<4>[ 65.503550] [<ffffffffa0010fa4>] ? vblank_disable_and_save+0x74/0x17f
[drm]
<4>[ 65.503556] [<ffffffffa00121f3>] ? drm_vblank_cleanup+0x48/0x7c [drm]
<4>[ 65.503567] [<ffffffffa0013117>] ? drm_dev_unregister+0x1e/0x8b [drm]
<4>[ 65.503571] [<ffffffffa00139a3>] ? drm_put_dev+0x45/0x4e [drm]
<4>[ 65.503586] [<ffffffffa0015221>] ? drm_pci_exit+0x39/0x9c [drm]
Here has another warnings below on drm-intel-fixes and drm-fixes:
[root@x-hsw24 tests]# dmesg -r|egrep ""<[1-4]>""|grep drm
<4>[ 90.242620] WARNING: CPU: 0 PID: 3998 at drivers/gpu/drm/drm_crtc.c:5113
drm_mode_config_cleanup+0x165/0x23f [drm]()
<4>[ 90.242623] Modules linked in: dm_mod snd_hda_codec_realtek
snd_hda_codec_generic iTCO_wdt snd_hda_codec_hdmi iTCO_vendor_support dcdbas
serio_raw pcspkr i2c_i801 snd_hda_controller snd_hda_codec lpc_ich snd_hwdep
mfd_core snd_pcm shpchp snd_timer snd soundcore battery acpi_cpufreq i915(-)
button video drm_kms_helper drm cfbfillrect cfbimgblt cfbcopyarea [last
unloaded: snd_hda_intel]
<4>[ 90.242648] CPU: 0 PID: 3998 Comm: rmmod Not tainted
3.17.0-rc4_drm-intel-fixes_e76c8c_20140915+ #2484
<4>[ 90.242682] [<ffffffffa001a78f>] ? drm_mode_config_cleanup+0x165/0x23f
[drm]
<4>[ 90.242688] [<ffffffffa001a78f>] ? drm_mode_config_cleanup+0x165/0x23f
[drm]
<4>[ 90.242718] [<ffffffffa00130d7>] ? drm_dev_unregister+0x1e/0x8b [drm]
<4>[ 90.242724] [<ffffffffa00139bb>] ? drm_put_dev+0x45/0x4e [drm]
<4>[ 90.242751] [<ffffffffa0015061>] ? drm_pci_exit+0x39/0x9c [drm]
<4>[ 90.244256] WARNING: CPU: 0 PID: 3998 at
drivers/gpu/drm/i915/i915_dma.c:1905 i915_driver_unload+0x1a0/0x276 [i915]()
<4>[ 90.244258] Modules linked in: dm_mod snd_hda_codec_realtek
snd_hda_codec_generic iTCO_wdt snd_hda_codec_hdmi iTCO_vendor_support dcdbas
serio_raw pcspkr i2c_i801 snd_hda_controller snd_hda_codec lpc_ich snd_hwdep
mfd_core snd_pcm shpchp snd_timer snd soundcore battery acpi_cpufreq i915(-)
button video drm_kms_helper drm cfbfillrect cfbimgblt cfbcopyarea [last
unloaded: snd_hda_intel]
<4>[ 90.244273] CPU: 0 PID: 3998 Comm: rmmod Tainted: G W
3.17.0-rc4_drm-intel-fixes_e76c8c_20140915+ #2484
<4>[ 90.244305] [<ffffffffa00130d7>] ? drm_dev_unregister+0x1e/0x8b [drm]
<4>[ 90.244309] [<ffffffffa00139bb>] ? drm_put_dev+0x45/0x4e [drm]
<4>[ 90.244325] [<ffffffffa0015061>] ? drm_pci_exit+0x39/0x9c [drm]
<4>[ 90.244341] WARNING: CPU: 0 PID: 3998 at
drivers/gpu/drm/i915/i915_dma.c:1913 i915_driver_unload+0x1e3/0x276 [i915]()
<4>[ 90.244343] Modules linked in: dm_mod snd_hda_codec_realtek
snd_hda_codec_generic iTCO_wdt snd_hda_codec_hdmi iTCO_vendor_support dcdbas
serio_raw pcspkr i2c_i801 snd_hda_controller snd_hda_codec lpc_ich snd_hwdep
mfd_core snd_pcm shpchp snd_timer snd soundcore battery acpi_cpufreq i915(-)
button video drm_kms_helper drm cfbfillrect cfbimgblt cfbcopyarea [last
unloaded: snd_hda_intel]
<4>[ 90.244356] CPU: 0 PID: 3998 Comm: rmmod Tainted: G W
3.17.0-rc4_drm-intel-fixes_e76c8c_20140915+ #2484
<4>[ 90.244387] [<ffffffffa00130d7>] ? drm_dev_unregister+0x1e/0x8b [drm]
<4>[ 90.244391] [<ffffffffa00139bb>] ? drm_put_dev+0x45/0x4e [drm]
<4>[ 90.244406] [<ffffffffa0015061>] ? drm_pci_exit+0x39/0x9c [drm]
==Reproduce steps==
----------------------------
1. ./drv_module_reload</pre>
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