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<base href="https://bugs.freedesktop.org/">
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<body><table border="1" cellspacing="0" cellpadding="8">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [BAT] igt@vgem_basic@dmabuf-export - incomplete - BUG: unable to handle kernel NULL pointer dereference at 0000000000000010"
href="https://bugs.freedesktop.org/show_bug.cgi?id=103714">103714</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>[BAT] igt@vgem_basic@dmabuf-export - incomplete - BUG: unable to handle kernel NULL pointer dereference at 0000000000000010
</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>marta.lofstedt@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/CI_DRM_3338/fi-byt-n2820/igt@vgem_basic@dmabuf-export.html">https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3338/fi-byt-n2820/igt@vgem_basic@dmabuf-export.html</a>
<14>[ 454.749693] [IGT] vgem_basic: starting subtest debugfs
<4>[ 454.750315] INFO: trying to register non-static key.
<4>[ 454.750330] the code is fine but needs lockdep annotation.
<4>[ 454.750338] turning off the locking correctness validator.
<4>[ 454.750350] CPU: 1 PID: 3939 Comm: vgem_basic Tainted: G U
4.14.0-rc8-CI-CI_DRM_3338+ #1
<4>[ 454.750365] Hardware name:
ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ
ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ/DN2820FYK,
BIOS FYBYT10H.86A.0059.2017.0607.2130 06/07/2017
<4>[ 454.750380] Call Trace:
<4>[ 454.750393] dump_stack+0x68/0x9f
<4>[ 454.750405] register_lock_class+0x3fd/0x580
<4>[ 454.750418] ? _raw_spin_unlock+0x31/0x50
<4>[ 454.750428] ? deactivate_slab.isra.22+0x85b/0x880
<4>[ 454.750439] __lock_acquire+0xa4/0x1b00
<4>[ 454.750449] ? drm_framebuffer_info+0x48/0xc0
<4>[ 454.750462] ? kvmalloc_node+0x6f/0x80
<4>[ 454.750470] ? kvmalloc_node+0x6f/0x80
<4>[ 454.750480] ? debug_smp_processor_id+0x17/0x20
<4>[ 454.750491] lock_acquire+0xb0/0x200
<4>[ 454.750499] ? lock_acquire+0xb0/0x200
<4>[ 454.750509] ? drm_framebuffer_info+0x48/0xc0
<4>[ 454.750520] __mutex_lock+0x86/0x9b0
<4>[ 454.750529] ? drm_framebuffer_info+0x48/0xc0
<4>[ 454.750539] ? drm_framebuffer_info+0x48/0xc0
<4>[ 454.750549] ? __slab_alloc.isra.23.constprop.28+0x59/0x80
<4>[ 454.750560] ? __this_cpu_preempt_check+0x13/0x20
<4>[ 454.750585] ? kvmalloc_node+0x6f/0x80
<4>[ 454.750596] mutex_lock_nested+0x1b/0x20
<4>[ 454.750606] ? mutex_lock_nested+0x1b/0x20
<4>[ 454.750615] drm_framebuffer_info+0x48/0xc0
<4>[ 454.750625] ? drm_mode_gamma_get_ioctl+0xf0/0xf0
<4>[ 454.750636] seq_read+0xe1/0x3a0
<4>[ 454.750647] full_proxy_read+0x54/0x80
<4>[ 454.750658] __vfs_read+0x28/0x120
<4>[ 454.750667] ? putname+0x54/0x60
<4>[ 454.750677] ? rcu_read_lock_sched_held+0x7a/0x90
<4>[ 454.750690] ? entry_SYSCALL_64_fastpath+0x5/0xb1
<4>[ 454.750700] vfs_read+0xa8/0x150
<4>[ 454.750709] SyS_read+0x49/0xb0
<4>[ 454.750719] entry_SYSCALL_64_fastpath+0x1c/0xb1
<4>[ 454.750731] RIP: 0033:0x7fd4633ee500
<4>[ 454.750739] RSP: 002b:00007ffd6e308ab8 EFLAGS: 00000246 ORIG_RAX:
0000000000000000
<4>[ 454.750753] RAX: ffffffffffffffda RBX: ffffffff81492083 RCX:
00007fd4633ee500
<4>[ 454.750766] RDX: 000000000000003f RSI: 000055cc92edbc40 RDI:
0000000000000005
<4>[ 454.750776] RBP: ffffc900007a7f88 R08: 0000000000000000 R09:
0000000000000000
<4>[ 454.750786] R10: 0000000000000000 R11: 0000000000000246 R12:
0000000000000005
<4>[ 454.750797] R13: 000055cc92edbc40 R14: 0000000000000000 R15:
0000000000000000
<4>[ 454.750812] ? __this_cpu_preempt_check+0x13/0x20
<1>[ 454.750831] BUG: unable to handle kernel NULL pointer dereference at
0000000000000010
<1>[ 454.750869] IP: drm_framebuffer_info+0x77/0xc0
<6>[ 454.750887] PGD 0 P4D 0
<4>[ 454.750906] Oops: 0000 [#1] PREEMPT SMP
<0>[ 454.750925] Dumping ftrace buffer:
<0>[ 454.750944] (ftrace buffer empty)
<4>[ 454.750961] Modules linked in: vgem snd_hda_codec_hdmi
snd_hda_codec_realtek snd_hda_codec_generic i915 snd_hda_intel snd_hda_codec
intel_powerclamp coretemp crct10dif_pclmul snd_hwdep crc32_pclmul
ghash_clmulni_intel snd_hda_core snd_pcm r8169 mii lpc_ich prime_numbers
i2c_hid
<4>[ 454.751085] CPU: 1 PID: 3939 Comm: vgem_basic Tainted: G U
4.14.0-rc8-CI-CI_DRM_3338+ #1
<4>[ 454.751116] Hardware name:
ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ
ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ/DN2820FYK,
BIOS FYBYT10H.86A.0059.2017.0607.2130 06/07/2017
<4>[ 454.751159] task: ffff88012ee6cd40 task.stack: ffffc900007a4000
<4>[ 454.751182] RIP: 0010:drm_framebuffer_info+0x77/0xc0
<4>[ 454.751202] RSP: 0018:ffffc900007a7d68 EFLAGS: 00010286
<4>[ 454.751224] RAX: 0000000000000000 RBX: fffffffffffffff8 RCX:
0000000000000001
<4>[ 454.751249] RDX: 0000000080000001 RSI: 0000000000000000 RDI:
00000000ffffffff
<4>[ 454.751273] RBP: ffffc900007a7da0 R08: 0000000000000000 R09:
0000000000000000
<4>[ 454.751298] R10: ffffc900007a7d58 R11: ffffffff81607ef8 R12:
ffff88013076a950
<4>[ 454.751323] R13: ffff88013076a8c8 R14: ffffffff81ce969b R15:
ffff880131b8dbc8
<4>[ 454.751348] FS: 00007fd464c0b8c0(0000) GS:ffff88013fd00000(0000)
knlGS:0000000000000000
<4>[ 454.751378] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
<4>[ 454.751399] CR2: 0000000000000010 CR3: 000000011be83000 CR4:
00000000001006e0
<4>[ 454.751423] Call Trace:
<4>[ 454.751437] ? drm_mode_gamma_get_ioctl+0xf0/0xf0
<4>[ 454.751460] seq_read+0xe1/0x3a0
<4>[ 454.751483] full_proxy_read+0x54/0x80
<4>[ 454.751503] __vfs_read+0x28/0x120
<4>[ 454.751520] ? putname+0x54/0x60
<4>[ 454.751539] ? rcu_read_lock_sched_held+0x7a/0x90
<4>[ 454.751560] ? entry_SYSCALL_64_fastpath+0x5/0xb1
<4>[ 454.751581] vfs_read+0xa8/0x150
<4>[ 454.751598] SyS_read+0x49/0xb0
<4>[ 454.751617] entry_SYSCALL_64_fastpath+0x1c/0xb1
<4>[ 454.751635] RIP: 0033:0x7fd4633ee500
<4>[ 454.751653] RSP: 002b:00007ffd6e308ab8 EFLAGS: 00000246 ORIG_RAX:
0000000000000000
<4>[ 454.751683] RAX: ffffffffffffffda RBX: ffffffff81492083 RCX:
00007fd4633ee500
<4>[ 454.751708] RDX: 000000000000003f RSI: 000055cc92edbc40 RDI:
0000000000000005
<4>[ 454.751732] RBP: ffffc900007a7f88 R08: 0000000000000000 R09:
0000000000000000
<4>[ 454.751757] R10: 0000000000000000 R11: 0000000000000246 R12:
0000000000000005
<4>[ 454.751784] R13: 000055cc92edbc40 R14: 0000000000000000 R15:
0000000000000000
<4>[ 454.751811] ? __this_cpu_preempt_check+0x13/0x20
<4>[ 454.751833] Code: 20 06 00 00 48 a9 f8 ff ff ff 74 63 49 8b 84 24 a8 06
00 00 49 81 c4 a8 06 00 00 49 c7 c6 9b 96 ce 81 49 39 c4 48 8d 58 f8 74 2d <8b>
53 18 48 8d 7d c8 4c 89 f6 e8 4a 5c 00 00 48 8d 7d c8 48 89
<1>[ 454.752054] RIP: drm_framebuffer_info+0x77/0xc0 RSP: ffffc900007a7d68
<4>[ 454.752076] CR2: 0000000000000010
<4>[ 454.752129] ---[ end trace 756020764eb0e9d4 ]---</pre>
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