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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 - wayland desktop crash from i915 driver bug: gen8_ppgtt_alloc_page_directories"
href="https://bugs.freedesktop.org/show_bug.cgi?id=100516">100516</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>wayland desktop crash from i915 driver bug: gen8_ppgtt_alloc_page_directories
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</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>major
</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>aappddeevv@gmail.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>I'm using 4.11rc4 with Fedora 25 on an XPS 9350 hooked up to a TP15 dock with 2
external monitors. I've seen this error on 4.10 as well.
Occassionally, about once or twice a day, I get the following bug. It crashes
my wayland session and I have to reboot. The underlying OS is still running as
I can login from another machine.
Mar 31 10:47:03 nc6910p kernel: ---[ end trace 7191751e8c8925ea ]---
Mar 31 10:47:03 nc6910p kernel: CR2: 0000000000000018
Mar 31 10:47:03 nc6910p kernel: RIP:
gen8_ppgtt_alloc_page_directories.isra.38+0x115/0x250 [i915] RSP:
ffffbf0085d8b878
Mar 31 10:47:03 nc6910p kernel: Code: e6 48 8b 90 28 03 00 00 48 8b b8 e0 02 00
00 48 8b 52 08 48 83 ca 03 e8 4a d0 ff ff 48 8b 45 b0 48 8b 4d c8 48 8b 10 48
8b 45 d0 <4c> 89 24 ca 48 0f ab 08 0f 1f 44 00 00 e9 53 ff ff ff 65 8b 0
Mar 31 10:47:03 nc6910p kernel: R13: 0000000000000010 R14: 0000000000000000
R15: 0000000000000000
Mar 31 10:47:03 nc6910p kernel: R10: 0000000000000050 R11: 0000000000000246
R12: 00000000c0406469
Mar 31 10:47:03 nc6910p kernel: RBP: 00007ffc29523620 R08: 0000000000000000
R09: 0000000000000000
Mar 31 10:47:03 nc6910p kernel: RDX: 00007ffc29523620 RSI: 00000000c0406469
RDI: 0000000000000010
Mar 31 10:47:03 nc6910p kernel: RAX: ffffffffffffffda RBX: 00001e30454f3000
RCX: 00007fa9fd3ed787
Mar 31 10:47:03 nc6910p kernel: RSP: 002b:00007ffc295235d8 EFLAGS: 00000246
ORIG_RAX: 0000000000000010
Mar 31 10:47:03 nc6910p kernel: RIP: 0033:0x7fa9fd3ed787
Mar 31 10:47:03 nc6910p kernel: entry_SYSCALL64_slow_path+0x25/0x25
Mar 31 10:47:03 nc6910p kernel: do_syscall_64+0x67/0x180
Mar 31 10:47:03 nc6910p kernel: SyS_ioctl+0x79/0x90
Mar 31 10:47:03 nc6910p kernel: do_vfs_ioctl+0xa3/0x5f0
Mar 31 10:47:03 nc6910p kernel: ? i915_gem_execbuffer+0x310/0x310 [i915]
Mar 31 10:47:03 nc6910p kernel: ? seccomp_run_filters+0x52/0xc0
Mar 31 10:47:03 nc6910p kernel: drm_ioctl+0x209/0x4c0 [drm]
Mar 31 10:47:03 nc6910p kernel: i915_gem_execbuffer2+0xc5/0x240 [i915]
Mar 31 10:47:03 nc6910p kernel: i915_gem_do_execbuffer.isra.36+0x4ec/0x1650
[i915]
Mar 31 10:47:03 nc6910p kernel:
i915_gem_execbuffer_reserve.isra.30+0x457/0x490 [i915]
Mar 31 10:47:03 nc6910p kernel:
i915_gem_execbuffer_reserve_vma.isra.29+0x14d/0x1b0 [i915]
Mar 31 10:47:03 nc6910p kernel: __i915_vma_do_pin+0x3a3/0x460 [i915]
Mar 31 10:47:03 nc6910p kernel: i915_vma_bind+0x81/0x170 [i915]
Mar 31 10:47:03 nc6910p kernel: gen8_alloc_va_range+0x25b/0x410 [i915]
Mar 31 10:47:03 nc6910p kernel: ? add_hole+0xf0/0x110 [drm]
Mar 31 10:47:03 nc6910p kernel: ? pick_next_task_fair+0x398/0x550
Mar 31 10:47:03 nc6910p kernel: ? sched_clock+0x9/0x10
Mar 31 10:47:03 nc6910p kernel: gen8_alloc_va_range_3lvl+0xd4/0x920 [i915]
Mar 31 10:47:03 nc6910p kernel: Call Trace:
Mar 31 10:47:03 nc6910p kernel: CR2: 0000000000000018 CR3: 0000000220044000
CR4: 00000000003406e0
Mar 31 10:47:03 nc6910p kernel: CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
Mar 31 10:47:03 nc6910p kernel: FS: 00007faa03d64f80(0000)
GS:ffff9ee4bed00000(0000) knlGS:0000000000000000
Mar 31 10:47:03 nc6910p kernel: R13: ffff9ee1637a4d10 R14: 00000000fffef000
R15: 0000000000008000
Mar 31 10:47:03 nc6910p kernel: R10: 0000000000000000 R11: 0000000000000001
R12: ffff9ee390806000
Mar 31 10:47:03 nc6910p kernel: RBP: ffffbf0085d8b8d0 R08: 0000000000000000
R09: 0000000000000000
Mar 31 10:47:03 nc6910p kernel: RDX: 0000000000000000 RSI: ffff9ee1d1a74000
RDI: ffff9ee4a73b8000
Mar 31 10:47:03 nc6910p kernel: RAX: ffff9ee43fc76dc0 RBX: 0000000000000003
RCX: 0000000000000003
Mar 31 10:47:03 nc6910p kernel: RSP: 0018:ffffbf0085d8b878 EFLAGS: 00010246
Mar 31 10:47:03 nc6910p kernel: RIP:
0010:gen8_ppgtt_alloc_page_directories.isra.38+0x115/0x250 [i915]
Mar 31 10:47:03 nc6910p kernel: task: ffff9ee26905cc00 task.stack:
ffffbf0085d88000
Mar 31 10:47:03 nc6910p kernel: Hardware name: Dell Inc. XPS 13 9350/0H67KH,
BIOS 1.4.14 02/08/2017
Mar 31 10:47:03 nc6910p kernel: CPU: 2 PID: 24710 Comm: chrome Tainted: G U
OE 4.11.0-0.rc4.git0.2.local.fc27.x86_64 #1
Mar 31 10:47:03 nc6910p kernel: int3403_thermal intel_hid intel_lpss
int340x_thermal_zone sparse_keymap int3400_thermal acpi_pad acpi_thermal_rel
acpi_als kfifo_buf industrialio tpm_tis tpm_tis_core tpm nfsd auth_rpcgss
nfs_acl l
Mar 31 10:47:03 nc6910p kernel: vfat fat dell_led snd_soc_skl snd_soc_skl_ipc
snd_soc_sst_ipc snd_soc_sst_dsp snd_hda_ext_core snd_soc_sst_match snd_soc_core
snd_hda_codec_realtek snd_hda_codec_generic snd_compress snd_pcm_dmaeng
Mar 31 10:47:03 nc6910p kernel: Modules linked in: ccm arc4 mac80211 cfg80211
cdc_ether usbnet snd_usb_audio snd_usbmidi_lib snd_rawmidi r8152 mii rfcomm
nf_conntrack_netbios_ns nf_conntrack_broadcast xt_CT ip6t_rpfilter ip6t_REJE
Mar 31 10:47:03 nc6910p kernel: Oops: 0002 [#1] SMP
Mar 31 10:47:03 nc6910p kernel:
Mar 31 10:47:03 nc6910p kernel: PGD 0
Mar 31 10:47:03 nc6910p kernel: IP:
gen8_ppgtt_alloc_page_directories.isra.38+0x115/0x250 [i915]
Mar 31 10:47:03 nc6910p kernel: BUG: unable to handle kernel NULL pointer
dereference at 0000000000000018</pre>
</div>
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