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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 - [BDW] igt_ppgtt_shrink, OOPS gen8_ppgtt_insert_4lvl"
href="https://bugs.freedesktop.org/show_bug.cgi?id=99948">99948</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>[BDW] igt_ppgtt_shrink, OOPS gen8_ppgtt_insert_4lvl
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr>
<tr>
<th>Version</th>
<td>DRI git
</td>
</tr>
<tr>
<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux (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>matthew.auld@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>Created <span class=""><a href="attachment.cgi?id=129903" name="attach_129903" title="dmesg">attachment 129903</a> <a href="attachment.cgi?id=129903&action=edit" title="dmesg">[details]</a></span>
dmesg
[ 82.606518] BUG: unable to handle kernel NULL pointer dereference at
0000000000000010
[ 82.606612] IP: gen8_ppgtt_insert_4lvl+0xc0/0x2e0 [i915]
[ 82.606639] PGD 22f436067
[ 82.606640] PUD 22b54f067
[ 82.606655] PMD 0
[ 82.606691] Oops: 0000 [#1] SMP
[ 82.606709] Modules linked in: i915(+) drm_kms_helper drm rfcomm fuse
xt_CHECKSUM ipt_MASQUERADE nf_nat_masquerade_ipv4 tun nf_conntrack_netbios_ns
nf_conntrack_broadcast xt_CT ip6t_rpfilter ip6t_REJECT nf_reject_ipv6
xt_conntrack ip_set nfnetlink ebtable_nat ebtable_broute bridge stp llc
ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_raw
ip6table_mangle ip6table_security iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4
nf_nat_ipv4 nf_nat libcrc32c nf_conntrack iptable_raw iptable_mangle
iptable_security ebtable_filter ebtables ip6table_filter ip6_tables cmac bnep
arc4 iwlmvm mac80211 intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp
kvm_intel kvm snd_hda_codec_realtek snd_hda_codec_generic iwlwifi
snd_hda_codec_hdmi iTCO_wdt iTCO_vendor_support mei_wdt snd_hda_codec irqbypass
[ 82.607030] intel_cstate snd_hwdep intel_uncore snd_hda_core
intel_rapl_perf cfg80211 btusb snd_seq btrtl intel_pch_thermal btbcm
rtsx_pci_ms btintel i2c_i801 bluetooth memstick lpc_ich snd_seq_device mei_me
snd_pcm joydev mei shpchp snd_timer thinkpad_acpi snd nfsd wmi soundcore
tpm_tis rfkill tpm_tis_core tpm intel_rst auth_rpcgss nfs_acl lockd grace
sunrpc binfmt_misc dm_crypt hid_logitech_hidpp hid_logitech_dj hid_microsoft
prime_numbers i2c_algo_bit rtsx_pci_sdmmc mmc_core e1000e crct10dif_pclmul
crc32_pclmul crc32c_intel ghash_clmulni_intel ptp rtsx_pci serio_raw pps_core
fjes video [last unloaded: drm]
[ 82.607282] CPU: 0 PID: 2983 Comm: drv_selftest Tainted: G U
4.10.0-debug+ #251
[ 82.607321] Hardware name: LENOVO 20BW000FUK/20BW000FUK, BIOS JBET54WW (1.19
) 11/06/2015
[ 82.607358] task: ffff8d44f3fd8000 task.stack: ffff9e2ec1ba8000
[ 82.607422] RIP: 0010:gen8_ppgtt_insert_4lvl+0xc0/0x2e0 [i915]
[ 82.607451] RSP: 0018:ffff9e2ec1bab7d0 EFLAGS: 00010246
[ 82.607476] RAX: 0000000000000000 RBX: 0000000001200000 RCX:
ffff8d4477fda5a0
[ 82.607509] RDX: 00000000000001ff RSI: 00000000011ff01b RDI:
ffff8d449d83b000
[ 82.607541] RBP: ffff9e2ec1bab860 R08: ffff8d4477fdc000 R09:
ffff8d44f3fd8000
[ 82.607574] R10: 0000000000000000 R11: 0000000000000200 R12:
0000000081000000
[ 82.607607] R13: ffff8d44832f5000 R14: 000000000000001b R15:
0000000087654321
[ 82.607640] FS: 00007f59bd78cdc0(0000) GS:ffff8d44fd800000(0000)
knlGS:0000000000000000
[ 82.607677] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 82.607704] CR2: 0000000000000010 CR3: 00000001ddb88000 CR4:
00000000003406f0
[ 82.607738] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
[ 82.607770] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7:
0000000000000400
[ 82.607803] Call Trace:
[ 82.607854] ppgtt_bind_vma+0x71/0x80 [i915]
[ 82.607914] i915_vma_bind+0xb4/0x150 [i915]
[ 82.607973] __i915_vma_do_pin+0x2cc/0x500 [i915]
[ 82.608031] shrink_hole+0x28a/0x350 [i915]
[ 82.610086] exercise_ppgtt+0xac/0x110 [i915]
[ 82.612125] ? drunk_hole+0x400/0x400 [i915]
[ 82.614147] igt_ppgtt_shrink+0x15/0x20 [i915]
[ 82.616162] __i915_subtests+0x3c/0xc0 [i915]
[ 82.618150] i915_gem_gtt_live_selftests+0x2f/0x40 [i915]
[ 82.620139] __run_selftests+0x113/0x1c0 [i915]
[ 82.622113] i915_live_selftests+0x35/0x60 [i915]
[ 82.624069] i915_pci_probe+0x67/0xb0 [i915]
[ 82.625992] local_pci_probe+0x45/0xa0
[ 82.627894] pci_device_probe+0x103/0x150
[ 82.629783] driver_probe_device+0x2bb/0x460
[ 82.631664] __driver_attach+0xdf/0xf0
[ 82.633544] ? driver_probe_device+0x460/0x460
[ 82.635416] bus_for_each_dev+0x6c/0xc0
[ 82.637276] driver_attach+0x1e/0x20
[ 82.639120] bus_add_driver+0x170/0x270
[ 82.640954] driver_register+0x60/0xe0
[ 82.642775] __pci_register_driver+0x4c/0x50
[ 82.644609] i915_init+0x6f/0x78 [i915]
[ 82.646402] ? 0xffffffffc0324000
[ 82.648200] do_one_initcall+0x52/0x1a0
[ 82.649980] ? __vunmap+0x81/0xd0
[ 82.651748] ? kmem_cache_alloc_trace+0x167/0x1c0
[ 82.653498] ? do_init_module+0x27/0x1f8
[ 82.654940] do_init_module+0x5f/0x1f8
[ 82.656325] load_module+0x25d7/0x29b0
[ 82.657662] ? __symbol_put+0x70/0x70
[ 82.658966] ? vfs_read+0x11b/0x130
[ 82.660257] SYSC_finit_module+0xdf/0x110
[ 82.661541] SyS_finit_module+0xe/0x10
[ 82.662820] entry_SYSCALL_64_fastpath+0x1a/0xa9
[ 82.664100] RIP: 0033:0x7f59bbfc1bf9
[ 82.665371] RSP: 002b:00007ffcb9aeb148 EFLAGS: 00000246 ORIG_RAX:
0000000000000139
[ 82.666650] RAX: ffffffffffffffda RBX: 0000000000000008 RCX:
00007f59bbfc1bf9
[ 82.667926] RDX: 0000000000000000 RSI: 0000000001bcf200 RDI:
0000000000000008
[ 82.669203] RBP: 0000000000000005 R08: 0000000000000000 R09:
0000000000000000
[ 82.670484] R10: 0000000000000008 R11: 0000000000000246 R12:
00007ffcb9aea140
[ 82.671769] R13: 00007ffcb9aea120 R14: 0000000000000005 R15:
0000000001bcab20
[ 82.673066] Code: 01 41 be 1b 00 00 00 89 4d 9c 48 8b 4d c8 4c 8b 14 c1 8b
45 b0 85 c0 74 12 83 f8 03 41 be 13 00 00 00 b8 83 00 00 00 4c 0f 45 f0 <49> 8b
42 10 48 8b 4d c0 4c 8b 04 08 48 8b 45 a8 49 8b 44 c0 10
[ 82.674511] RIP: gen8_ppgtt_insert_4lvl+0xc0/0x2e0 [i915] RSP:
ffff9e2ec1bab7d0
[ 82.676197] CR2: 0000000000000010</pre>
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