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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][DRMTIP] igt@gem_exec_await@wide-contexts - dmesg-warn - BUG active_node (Tainted:.*): Object padding overwritten"
href="https://bugs.freedesktop.org/show_bug.cgi?id=111183">111183</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>[CI][DRMTIP] igt@gem_exec_await@wide-contexts - dmesg-warn - BUG active_node (Tainted:.*): Object padding overwritten
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr>
<tr>
<th>Version</th>
<td>DRI 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>lakshminarayana.vudum@intel.com
</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/drmtip_327/fi-icl-dsi/igt@gem_exec_await@wide-contexts.html">https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_327/fi-icl-dsi/igt@gem_exec_await@wide-contexts.html</a>
<6> [55.564103] Console: switching to colour dummy device 80x25
<6> [55.564154] [IGT] gem_exec_await: executing
<6> [55.596692] [drm] Initialized vgem 1.0.0 20120112 for vgem on minor 1
<5> [55.729357] Setting dangerous option reset - tainting kernel
<6> [55.737303] [IGT] gem_exec_await: starting subtest wide-contexts
<6> [55.738845] gem_exec_await (1112): drop_caches: 4
<3> [66.140734]
=============================================================================
<3> [66.141073] BUG active_node (Tainted: G U ): Object padding
overwritten
<3> [66.141112]
-----------------------------------------------------------------------------
<4> [66.141159] Disabling lock debugging due to kernel taint
<3> [66.141163] INFO: 0x00000000d4b35f55-0x00000000abf6671d. First byte 0x58
instead of 0x5a
<3> [66.141256] INFO: Allocated in i915_active_ref+0x59/0x200 [i915] age=3493
cpu=5 pid=1112
<3> [66.141275] __slab_alloc.isra.28.constprop.34+0x3d/0x70
<3> [66.141286] kmem_cache_alloc+0x21c/0x280
<3> [66.141358] i915_active_ref+0x59/0x200 [i915]
<3> [66.141433] i915_vma_move_to_active+0x4c/0x350 [i915]
<3> [66.141502] i915_gem_do_execbuffer+0x12cc/0x20f0 [i915]
<3> [66.141567] i915_gem_execbuffer2_ioctl+0x11b/0x430 [i915]
<3> [66.141580] drm_ioctl_kernel+0x83/0xf0
<3> [66.141589] drm_ioctl+0x2f3/0x3b0
<3> [66.141598] do_vfs_ioctl+0xa0/0x6e0
<3> [66.141606] ksys_ioctl+0x35/0x60
<3> [66.141614] __x64_sys_ioctl+0x11/0x20
<3> [66.141624] do_syscall_64+0x55/0x1c0
<3> [66.141636] entry_SYSCALL_64_after_hwframe+0x49/0xbe
<3> [66.141646] INFO: Slab 0x00000000f7fe5a99 objects=32 used=21
fp=0x0000000004782f4f flags=0x8000000000010201
<3> [66.141663] INFO: Object 0x000000001f6cc2f9 @offset=13376
fp=0x000000002383d773
<3> [66.141680] Redzone 00000000: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc
cc ................
<3> [66.141695] Redzone 00000010: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc
cc ................
<3> [66.141710] Redzone 00000020: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc
cc ................
<3> [66.141725] Redzone 00000030: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc
cc ................
<3> [66.141740] Object 00000000: 00 00 00 00 00 00 00 00 48 74 e9 08 f3 95 ff
ff ........Ht......
<3> [66.141755] Object 00000010: 48 74 e9 08 f3 95 ff ff b0 f8 58 c0 ff ff ff
ff Ht........X.....
<3> [66.141770] Object 00000020: d0 de e8 08 f3 95 ff ff 01 00 00 00 00 00 00
00 ................
<3> [66.141785] Object 00000030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 ................
<3> [66.141800] Object 00000040: a3 02 00 00 00 00 00 00
........
<3> [66.141814] Redzone 00000000: cc cc cc cc cc cc cc cc
........
<3> [66.141828] Padding 00000000: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a
5a ZZZZZZZZZZZZZZZZ
<3> [66.141843] Padding 00000010: 5a 5a 58 5a 5a 5a 5a 5a 5a 5a 58 5a 5a 5a 5a
5a ZZXZZZZZZZXZZZZZ
<3> [66.141858] Padding 00000020: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a
5a ZZZZZZZZZZZZZZZZ
<3> [66.141873] Padding 00000030: 5a 5a 5a 5a 5a 5a 5a 5a
ZZZZZZZZ
<4> [66.141889] CPU: 5 PID: 191 Comm: kworker/u16:2 Tainted: G BU
5.2.0-ga9fbb0055257-drmtip_327+ #1
<4> [66.141891] Hardware name: Intel Corporation Ice Lake Client
Platform/IceLake Y LPDDR4x T4 RVP TLC, BIOS ICLSFWR1.R00.3102.A00.1903052247
03/05/2019
<4> [66.141951] Workqueue: i915 retire_work_handler [i915]
<4> [66.141953] Call Trace:
<4> [66.141959] dump_stack+0x67/0x9b
<4> [66.141964] check_bytes_and_report+0xbd/0x100
<4> [66.141968] check_object+0x14e/0x270
<4> [66.141973] free_debug_processing+0x137/0x370
<4> [66.142031] ? __active_retire+0x10a/0x190 [i915]
<4> [66.142036] __slab_free+0x337/0x4f0
<4> [66.142041] ? mark_held_locks+0x49/0x70
<4> [66.142044] ? _raw_spin_unlock_irqrestore+0x4c/0x60
<4> [66.142047] ? _raw_spin_unlock_irqrestore+0x4c/0x60
<4> [66.142050] ? lockdep_hardirqs_on+0xe3/0x1b0
<4> [66.142053] ? _raw_spin_unlock_irqrestore+0x39/0x60
<4> [66.142057] ? debug_check_no_obj_freed+0x132/0x210
<4> [66.142114] ? __active_retire+0x10a/0x190 [i915]
<4> [66.142118] ? kmem_cache_free+0x275/0x2e0
<4> [66.142121] kmem_cache_free+0x275/0x2e0
<4> [66.142175] __active_retire+0x10a/0x190 [i915]
<4> [66.142237] i915_request_retire+0x22b/0x840 [i915]
<4> [66.142297] ring_retire_requests+0x47/0x50 [i915]
<4> [66.142357] i915_retire_requests+0x57/0xc0 [i915]
<4> [66.142414] retire_work_handler+0x27/0x60 [i915]
<4> [66.142418] process_one_work+0x245/0x610
<4> [66.142424] worker_thread+0x37/0x380
<4> [66.142428] ? process_one_work+0x610/0x610
<4> [66.142432] kthread+0x119/0x130
<4> [66.142435] ? kthread_park+0x80/0x80
<4> [66.142440] ret_from_fork+0x3a/0x50
<3> [66.142447] FIX active_node: Restoring
0x00000000d4b35f55-0x00000000abf6671d=0x5a
<6> [79.191111] [IGT] gem_exec_await: exiting, ret=0
<5> [79.191471] Setting dangerous option reset - tainting kernel
<6> [79.256757] Console: switching to colour frame buffer device 180x160</pre>
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