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<base href="https://bugs.freedesktop.org/">
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<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - intel_dp.c:4631 intel_dp_long_pulse WARN_ON(!drm_modeset_is_locked(&connector->dev->mode_config.connection_mutex))"
href="https://bugs.freedesktop.org/show_bug.cgi?id=100754">100754</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>intel_dp.c:4631 intel_dp_long_pulse WARN_ON(!drm_modeset_is_locked(&connector->dev->mode_config.connection_mutex))
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr>
<tr>
<th>Version</th>
<td>XOrg git
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Other
</td>
</tr>
<tr>
<th>OS</th>
<td>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>chris@chris-wilson.co.uk
</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>[ 2.817126] ------------[ cut here ]------------
[ 2.817183] WARNING: CPU: 3 PID: 247 at drivers/gpu/drm/i915/intel_dp.c:4631
intel_dp_long_pulse+0x449/0x600 [i915]
[ 2.817187]
WARN_ON(!drm_modeset_is_locked(&connector->dev->mode_config.connection_mutex))
[ 2.817188] Modules linked in: binfmt_misc i915(+) amdgpu
x86_pkg_temp_thermal intel_powerclamp coretemp crct10dif_pclmul crc32_pclmul
crc32c_intel ghash_clmulni_intel aesni_intel aes_x86_64 crypto_simd cryptd
glue_helper intel_gtt i2c_algo_bit drm_kms_helper ttm intel_cstate intel_uncore
drm intel_rapl_perf lpc_ich mfd_core battery video button ac loop autofs4
sd_mod ahci libahci libata scsi_mod e1000e i2c_i801 fan thermal
i2c_designware_platform i2c_designware_core
[ 2.817217] CPU: 3 PID: 247 Comm: systemd-udevd Tainted: G I
4.11.0-rc7+ #3
[ 2.817220] Hardware name: Intel Corporation Shark Bay Client
platform/Flathead Creek Crb, BIOS HSWLPTU1.86C.0109.R03.1301282055 01/28/2013
[ 2.817224] Call Trace:
[ 2.817230] ? dump_stack+0x46/0x5e
[ 2.817233] ? __warn+0xbe/0xe0
[ 2.817236] ? warn_slowpath_fmt+0x4b/0x60
[ 2.817239] ? i2c_do_add_adapter+0x2f0/0x2f0
[ 2.817263] ? intel_dp_long_pulse+0x449/0x600 [i915]
[ 2.817285] ? intel_dp_connector_register+0xd3/0x110 [i915]
[ 2.817296] ? drm_connector_register.part.8+0x6c/0xa0 [drm]
[ 2.817304] ? drm_connector_register_all+0x3b/0xa0 [drm]
[ 2.817312] ? drm_crtc_register_all+0x57/0x80 [drm]
[ 2.817319] ? drm_modeset_register_all+0x3c/0x80 [drm]
[ 2.817326] ? drm_dev_register+0x159/0x1c0 [drm]
[ 2.817347] ? i915_driver_load+0xa70/0x1410 [i915]
[ 2.817351] ? pci_device_probe+0x86/0xf0
[ 2.817355] ? driver_probe_device+0x2b2/0x450
[ 2.817359] ? __driver_attach+0xda/0xe0
[ 2.817363] ? driver_probe_device+0x450/0x450
[ 2.817366] ? driver_probe_device+0x450/0x450
[ 2.817370] ? bus_for_each_dev+0x5a/0x90
[ 2.817373] ? bus_add_driver+0x16a/0x260
[ 2.817376] ? driver_register+0x57/0xc0
[ 2.817379] ? 0xffffffffa055a000
[ 2.817383] ? do_one_initcall+0x3e/0x160
[ 2.817387] ? __vunmap+0x6d/0xc0
[ 2.817391] ? do_init_module+0x5b/0x1f6
[ 2.817395] ? load_module+0x295e/0x2c50
[ 2.817400] ? kernel_read_file+0x102/0x190
[ 2.817404] ? SYSC_finit_module+0xa4/0xe0
[ 2.817407] ? SYSC_finit_module+0xa4/0xe0
[ 2.817411] ? entry_SYSCALL_64_fastpath+0x17/0x98
[ 2.817414] ---[ end trace ddb1e1c22bedfedc ]---
[ 2.818548] ------------[ cut here ]------------
[ 2.818578] WARNING: CPU: 1 PID: 247 at drivers/gpu/drm/i915/intel_dp.c:4262
intel_dp_check_link_status+0x17d/0x1a0 [i915]
[ 2.818582]
WARN_ON(!drm_modeset_is_locked(&dev->mode_config.connection_mutex))
[ 2.818582] Modules linked in: binfmt_misc i915(+) amdgpu
x86_pkg_temp_thermal intel_powerclamp coretemp crct10dif_pclmul crc32_pclmul
crc32c_intel ghash_clmulni_intel aesni_intel aes_x86_64 crypto_simd cryptd
glue_helper intel_gtt i2c_algo_bit drm_kms_helper ttm intel_cstate intel_uncore
drm intel_rapl_perf lpc_ich mfd_core battery video button ac loop autofs4
sd_mod ahci libahci libata scsi_mod e1000e i2c_i801 fan thermal
i2c_designware_platform i2c_designware_core
[ 2.818619] CPU: 1 PID: 247 Comm: systemd-udevd Tainted: G W I
4.11.0-rc7+ #3
[ 2.818623] Hardware name: Intel Corporation Shark Bay Client
platform/Flathead Creek Crb, BIOS HSWLPTU1.86C.0109.R03.1301282055 01/28/2013
[ 2.818627] Call Trace:
[ 2.818631] ? dump_stack+0x46/0x5e
[ 2.818634] ? __warn+0xbe/0xe0
[ 2.818636] ? warn_slowpath_fmt+0x4b/0x60
[ 2.818661] ? intel_dp_read_desc+0xdf/0x100 [i915]
[ 2.818682] ? intel_dp_check_link_status+0x17d/0x1a0 [i915]
[ 2.818704] ? intel_dp_long_pulse+0x251/0x600 [i915]
[ 2.818728] ? intel_dp_connector_register+0xd3/0x110 [i915]
[ 2.818739] ? drm_connector_register.part.8+0x6c/0xa0 [drm]
[ 2.818749] ? drm_connector_register_all+0x3b/0xa0 [drm]
[ 2.818758] ? drm_crtc_register_all+0x57/0x80 [drm]
[ 2.818767] ? drm_modeset_register_all+0x3c/0x80 [drm]
[ 2.818776] ? drm_dev_register+0x159/0x1c0 [drm]
[ 2.818798] ? i915_driver_load+0xa70/0x1410 [i915]
[ 2.818804] ? pci_device_probe+0x86/0xf0
[ 2.818809] ? driver_probe_device+0x2b2/0x450
[ 2.818813] ? __driver_attach+0xda/0xe0
[ 2.818817] ? driver_probe_device+0x450/0x450
[ 2.818820] ? driver_probe_device+0x450/0x450
[ 2.818824] ? bus_for_each_dev+0x5a/0x90
[ 2.818827] ? bus_add_driver+0x16a/0x260
[ 2.818830] ? driver_register+0x57/0xc0
[ 2.818833] ? 0xffffffffa055a000
[ 2.818837] ? do_one_initcall+0x3e/0x160
[ 2.818840] ? __vunmap+0x6d/0xc0
[ 2.818844] ? do_init_module+0x5b/0x1f6
[ 2.818847] ? load_module+0x295e/0x2c50
[ 2.818852] ? kernel_read_file+0x102/0x190
[ 2.818857] ? SYSC_finit_module+0xa4/0xe0
[ 2.818861] ? SYSC_finit_module+0xa4/0xe0
[ 2.818864] ? entry_SYSCALL_64_fastpath+0x17/0x98
[ 2.818868] ---[ end trace ddb1e1c22bedfedd ]---
[ 2.824835] ------------[ cut here ]------------
[ 2.824884] WARNING: CPU: 2 PID: 247 at drivers/gpu/drm/i915/intel_dp.c:4631
intel_dp_long_pulse+0x449/0x600 [i915]
[ 2.824888]
WARN_ON(!drm_modeset_is_locked(&connector->dev->mode_config.connection_mutex))
[ 2.824889] Modules linked in: binfmt_misc i915(+) amdgpu
x86_pkg_temp_thermal intel_powerclamp coretemp crct10dif_pclmul crc32_pclmul
crc32c_intel ghash_clmulni_intel aesni_intel aes_x86_64 crypto_simd cryptd
glue_helper intel_gtt i2c_algo_bit drm_kms_helper ttm intel_cstate intel_uncore
drm intel_rapl_perf lpc_ich mfd_core battery video button ac loop autofs4
sd_mod ahci libahci libata scsi_mod e1000e i2c_i801 fan thermal
i2c_designware_platform i2c_designware_core
[ 2.824919] CPU: 2 PID: 247 Comm: systemd-udevd Tainted: G W I
4.11.0-rc7+ #3
[ 2.824923] Hardware name: Intel Corporation Shark Bay Client
platform/Flathead Creek Crb, BIOS HSWLPTU1.86C.0109.R03.1301282055 01/28/2013
[ 2.824926] Call Trace:
[ 2.824932] ? dump_stack+0x46/0x5e
[ 2.824935] ? __warn+0xbe/0xe0
[ 2.824937] ? warn_slowpath_fmt+0x4b/0x60
[ 2.824940] ? i2c_do_add_adapter+0x2f0/0x2f0
[ 2.824965] ? intel_dp_long_pulse+0x449/0x600 [i915]
[ 2.824986] ? intel_dp_connector_register+0xd3/0x110 [i915]
[ 2.824997] ? drm_connector_register.part.8+0x6c/0xa0 [drm]
[ 2.825005] ? drm_connector_register_all+0x3b/0xa0 [drm]
[ 2.825013] ? drm_crtc_register_all+0x57/0x80 [drm]
[ 2.825020] ? drm_modeset_register_all+0x3c/0x80 [drm]
[ 2.825027] ? drm_dev_register+0x159/0x1c0 [drm]
[ 2.825047] ? i915_driver_load+0xa70/0x1410 [i915]
[ 2.825050] ? pci_device_probe+0x86/0xf0
[ 2.825054] ? driver_probe_device+0x2b2/0x450
[ 2.825057] ? __driver_attach+0xda/0xe0
[ 2.825060] ? driver_probe_device+0x450/0x450
[ 2.825063] ? driver_probe_device+0x450/0x450
[ 2.825065] ? bus_for_each_dev+0x5a/0x90
[ 2.825068] ? bus_add_driver+0x16a/0x260
[ 2.825071] ? driver_register+0x57/0xc0
[ 2.825073] ? 0xffffffffa055a000
[ 2.825076] ? do_one_initcall+0x3e/0x160
[ 2.825078] ? __vunmap+0x6d/0xc0
[ 2.825082] ? do_init_module+0x5b/0x1f6
[ 2.825085] ? load_module+0x295e/0x2c50
[ 2.825089] ? kernel_read_file+0x102/0x190
[ 2.825091] ? SYSC_finit_module+0xa4/0xe0
[ 2.825094] ? SYSC_finit_module+0xa4/0xe0
[ 2.825097] ? entry_SYSCALL_64_fastpath+0x17/0x98</pre>
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