[Bug 104945] [CI] igt at gem_* - incomplete - GEM_BUG_ON(buf[2 * head + 1] != port->context_id) - kernel BUG at drivers/gpu/drm/i915/intel_lrc.c:869!

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=104945

--- Comment #5 from Marta Löfstedt <marta.lofstedt at intel.com> ---
https://intel-gfx-ci.01.org/tree/drm-tip/IGT_4284/shard-kbl7/igt@gem_eio@in-flight-external.html

Although pstore backtrace is partially overwritten by ftrace I believe this is
the same issue.

<4>[   78.803859] Modules linked in: vgem snd_hda_codec_hdmi
snd_hda_codec_realtek snd_hda_codec_generic i915 snd_hda_intel snd_hda_codec
x86_pkg_temp_thermal intel_powerclamp coretemp snd_hwdep crct10dif_pclmul
snd_hda_core crc32_pclmul ghash_clmulni_intel snd_pcm e1000e mei_me mei
prime_numbers
<4>[   78.803910] CPU: 0 PID: 3 Comm: kworker/0:0 Tainted: G     U          
4.16.0-rc2-CI-CI_DRM_3821+ #1
<4>[   78.803922] Hardware name: Intel Corporation NUC7i5BNH/NUC7i5BNB, BIOS
BNKBL357.86A.0060.2017.1214.2013 12/14/2017
<4>[   78.803955] Workqueue: events_long i915_hangcheck_elapsed [i915]
<4>[   78.803989] RIP: 0010:execlists_submission_tasklet+0x4a2/0xe30 [i915]
<4>[   78.803999] RSP: 0018:ffff88027ec03ea8 EFLAGS: 00010296
<4>[   78.804007] RAX: 0000000000000031 RBX: 0000000000000018 RCX:
0000000000000102
<4>[   78.804017] RDX: 0000000080000102 RSI: ffffffff8211c1af RDI:
00000000ffffffff
<4>[   78.804026] RBP: ffff88027ec03f20 R08: ffff8802751b3140 R09:
00000000beeb13b4
<4>[   78.804036] R10: 0000000000000000 R11: 0000000000000000 R12:
ffff88025d32205c
<4>[   78.804045] R13: ffff88025d322040 R14: ffff880269100010 R15:
ffff880269100008
<4>[   78.804055] FS:  0000000000000000(0000) GS:ffff88027ec00000(0000)
knlGS:0000000000000000
<4>[   78.804065] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
<4>[   78.804074] CR2: 000055b5d01b9dd0 CR3: 0000000005210005 CR4:
00000000003606f0
<4>[   78.804083] Call Trace:
<4>[   78.804089]  <IRQ>
<4>[   78.804098]  tasklet_hi_action+0x89/0x110
<4>[   78.804106]  __do_softirq+0xc1/0x4aa
<4>[   78.804116]  irq_exit+0xa4/0xb0
<4>[   78.804122]  do_IRQ+0x67/0x120
<4>[   78.804129]  common_interrupt+0x84/0x84
<4>[   78.804135]  </IRQ>
<4>[   78.804141] RIP: 0010:_raw_spin_unlock_irqrestore+0x4e/0x60
<4>[   78.804149] RSP: 0018:ffffc90000037ac8 EFLAGS: 00000246 ORIG_RAX:
ffffffffffffffdb
<4>[   78.804160] RAX: ffff8802751b2840 RBX: 0000000000000246 RCX:
0000000000000006
<4>[   78.804170] RDX: 000000000000128e RSI: ffffffff8210fb59 RDI:
ffffffff820c02e7
<4>[   78.804179] RBP: ffff8802744d35d0 R08: ffff8802751b3140 R09:
00000000beeb13b4
<4>[   78.804189] R10: 0000000000000000 R11: 0000000000000000 R12:
ffffffffa0287f2a
<4>[   78.804198] R13: ffff88026955a298 R14: ffff880268a28968 R15:
ffff88026955a298
<4>[   78.804214]  __irq_put_desc_unlock+0x13/0x40
<4>[   78.804222]  enable_irq+0x42/0x60
<4>[   78.804252]  i915_reset+0xcd/0x270 [i915]
<4>[   78.804283]  i915_reset_device+0x1cb/0x230 [i915]
<4>[   78.804313]  ? __intel_get_crtc_scanline+0x1f0/0x1f0 [i915]
<4>[   78.804324]  ? work_on_cpu_safe+0x50/0x50
<4>[   78.804356]  i915_handle_error+0x2d3/0x430 [i915]
<4>[   78.804369]  ? scnprintf+0x3a/0x70
<4>[   78.804402]  hangcheck_declare_hang+0xc0/0xd0 [i915]
<4>[   78.804439]  ? fwtable_read32+0x21e/0x290 [i915]
<4>[   78.804476]  i915_hangcheck_elapsed+0x232/0x310 [i915]
<4>[   78.804488]  process_one_work+0x215/0x620
<4>[   78.804498]  worker_thread+0x48/0x3a0
<4>[   78.804506]  kthread+0xfb/0x130
<4>[   78.804513]  ? process_one_work+0x620/0x620
<4>[   78.804520]  ? _kthread_create_on_node+0x30/0x30
<4>[   78.804529]  ret_from_fork+0x3a/0x50
<4>[   78.804539] Code: fd ff ff 48 c7 c6 48 a1 2a a0 48 c7 c7 9b e4 28 a0 e8
08 a4 f2 e0 0f 0b 48 c7 c6 70 a1 2a a0 48 c7 c7 9b e4 28 a0 e8 f3 a3 f2 e0 <0f>
0b 49 8d 9c 24 c0 14 00 00 4c 89 55 b0 48 89 df e8 58 23 71 
<1>[   78.804642] RIP: execlists_submission_tasklet+0x4a2/0xe30 [i915] RSP:
ffff88027ec03ea8
<4>[   78.804677] ---[ end trace 7b2c642a76185f25 ]---

-- 
You are receiving this mail because:
You are on the CC list for the bug.
You are the assignee for the bug.
You are the QA Contact for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/intel-gfx-bugs/attachments/20180223/b37e591c/attachment.html>