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<base href="https://bugs.freedesktop.org/">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [CI][SHARDS] igt@drv_selftest@live_gtt - dmesg-fail - list_add corruption. prev->next should be next (ffff88026a788a90), but was 6b6b6b6b6b6b6b6b."
href="https://bugs.freedesktop.org/show_bug.cgi?id=107203">107203</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>[CI][SHARDS] igt@drv_selftest@live_gtt - dmesg-fail - list_add corruption. prev->next should be next (ffff88026a788a90), but was 6b6b6b6b6b6b6b6b.
</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>martin.peres@free.fr
</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><a href="https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_4428/shard-kbl3/igt@drv_selftest@live_gtt.html">https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_4428/shard-kbl3/igt@drv_selftest@live_gtt.html</a>
[ 168.572853] ------------[ cut here ]------------
[ 168.572858] list_add corruption. prev->next should be next
(ffff88026a788a90), but was 6b6b6b6b6b6b6b6b. (prev=ffff88023fc18108).
[ 168.572878] WARNING: CPU: 3 PID: 5641 at lib/list_debug.c:28
__list_add_valid+0x4d/0x70
[ 168.572885] Modules linked in: i915(+) snd_hda_codec_hdmi
snd_hda_codec_realtek snd_hda_codec_generic x86_pkg_temp_thermal
intel_powerclamp coretemp crct10dif_pclmul crc32_pclmul snd_hda_codec snd_hwdep
ghash_clmulni_intel snd_hda_core btusb btrtl btbcm btintel snd_pcm bluetooth
e1000e mei_me ecdh_generic mei prime_numbers [last unloaded: i915]
[ 168.572924] CPU: 3 PID: 5641 Comm: drv_selftest Tainted: G U
4.18.0-rc3-CI-CI_DRM_4428+ #1
[ 168.572932] Hardware name: /NUC7i5BNB, BIOS
BNKBL357.86A.0054.2017.1025.1822 10/25/2017
[ 168.572939] RIP: 0010:__list_add_valid+0x4d/0x70
[ 168.572943] Code: c3 48 89 d1 48 c7 c7 90 6d 0d 82 48 89 c2 e8 3a b2 be ff
0f 0b 31 c0 c3 48 89 c1 4c 89 c6 48 c7 c7 e0 6d 0d 82 e8 23 b2 be ff <0f> 0b 31
c0 c3 48 89 f2 4c 89 c1 48 89 fe 48 c7 c7 30 6e 0d 82 e8
[ 168.572991] RSP: 0000:ffffc900002d7958 EFLAGS: 00010286
[ 168.572997] RAX: 0000000000000000 RBX: ffff880064a12158 RCX:
0000000000000001
[ 168.573003] RDX: 0000000080000001 RSI: ffffffff820c638c RDI:
00000000ffffffff
[ 168.573008] RBP: ffff88026a780000 R08: 0000000000000000 R09:
0000000000000000
[ 168.573014] R10: ffffc900002d7920 R11: ffffffff82244838 R12:
ffff88023fc18108
[ 168.573020] R13: ffff880064a12258 R14: ffff88026a788a90 R15:
0000000000000000
[ 168.573026] FS: 00007f5882afd980(0000) GS:ffff88027ed80000(0000)
knlGS:0000000000000000
[ 168.573033] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 168.573038] CR2: 00007f1dac191187 CR3: 00000002614de003 CR4:
00000000003606e0
[ 168.573044] Call Trace:
[ 168.573096] i915_address_space_init+0xb7/0x130 [i915]
[ 168.573134] gen8_ppgtt_create+0x91/0x580 [i915]
[ 168.573169] i915_ppgtt_create+0x17/0x170 [i915]
[ 168.573202] i915_gem_create_context+0x125/0x2a0 [i915]
[ 168.573234] i915_gem_context_open+0x64/0xe0 [i915]
[ 168.573270] i915_gem_open+0x91/0xc0 [i915]
[ 168.573276] drm_file_alloc+0x163/0x240
[ 168.573281] drm_open+0xa2/0x210
[ 168.573286] ? kmem_cache_alloc_trace+0x209/0x2e0
[ 168.573318] mock_file+0x5f/0xc0 [i915]
[ 168.573351] ? igt_ggtt_lowlevel+0x10/0x10 [i915]
[ 168.573384] exercise_ppgtt+0x34/0x1b0 [i915]
[ 168.573416] ? igt_ppgtt_alloc+0xfb/0x1c0 [i915]
[ 168.573457] __i915_subtests+0x44/0xd0 [i915]
[ 168.573497] __run_selftests+0x10b/0x190 [i915]
[ 168.573535] i915_live_selftests+0x2c/0x60 [i915]
[ 168.573567] i915_pci_probe+0x3b/0x90 [i915]
[ 168.573574] pci_device_probe+0xa1/0x130
[ 168.573580] driver_probe_device+0x306/0x480
[ 168.573585] __driver_attach+0xdb/0x100
[ 168.573589] ? driver_probe_device+0x480/0x480
[ 168.573594] ? driver_probe_device+0x480/0x480
[ 168.573599] bus_for_each_dev+0x74/0xc0
[ 168.573605] bus_add_driver+0x15f/0x250
[ 168.573609] ? 0xffffffffa01a9000
[ 168.573614] driver_register+0x56/0xe0
[ 168.573618] ? 0xffffffffa01a9000
[ 168.573622] do_one_initcall+0x58/0x370
[ 168.573627] ? kmem_cache_alloc_trace+0x209/0x2e0
[ 168.573634] do_init_module+0x56/0x1ea
[ 168.573640] load_module+0x2435/0x2b20
[ 168.573649] ? __se_sys_finit_module+0xd3/0xf0
[ 168.573654] __se_sys_finit_module+0xd3/0xf0
[ 168.573661] do_syscall_64+0x55/0x190
[ 168.573666] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 168.573671] RIP: 0033:0x7f58823c9839
[ 168.573675] Code: Bad RIP value.
[ 168.573682] RSP: 002b:00007ffc49817c78 EFLAGS: 00000246 ORIG_RAX:
0000000000000139
[ 168.573689] RAX: ffffffffffffffda RBX: 00005620ade10ea0 RCX:
00007f58823c9839
[ 168.573695] RDX: 0000000000000000 RSI: 00005620ade11c60 RDI:
0000000000000004
[ 168.573701] RBP: 00005620ade11c60 R08: 0000000000000004 R09:
0000000000000000
[ 168.573707] R10: 00007ffc49817de0 R11: 0000000000000246 R12:
0000000000000000
[ 168.573712] R13: 00005620ade07c00 R14: 0000000000000000 R15:
0000000000000037
[ 168.573721] irq event stamp: 0
[ 168.573725] hardirqs last enabled at (0): [<0000000000000000>]
(null)
[ 168.573732] hardirqs last disabled at (0): [<ffffffff81082192>]
copy_process.part.7+0x322/0x1db0
[ 168.573739] softirqs last enabled at (0): [<ffffffff81082192>]
copy_process.part.7+0x322/0x1db0
[ 168.573746] softirqs last disabled at (0): [<0000000000000000>]
(null)
[ 168.573754] WARNING: CPU: 3 PID: 5641 at lib/list_debug.c:28
__list_add_valid+0x4d/0x70
[ 168.573760] ---[ end trace 892b2e8fb1ba868e ]---</pre>
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