https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_175/fi-bsw-kefka/igt@gem_bad_reloc@negative-reloc-lut-vebox.html

<6> [56.601114] [IGT] gem_bad_reloc: executing
<6> [56.642902] [IGT] gem_bad_reloc: starting subtest negative-reloc-lut-vebox
<6> [56.646906] [IGT] gem_bad_reloc: exiting, ret=0
<3> [56.648569] reset_all_global_seqno:152 GEM_BUG_ON(!intel_engine_is_idle(engine))
<4> [56.649114] ------------[ cut here ]------------
<2> [56.649120] kernel BUG at drivers/gpu/drm/i915/i915_request.c:152!
<4> [56.649175] invalid opcode: 0000 [#1] PREEMPT SMP PTI
<4> [56.649194] CPU: 0 PID: 1003 Comm: gem_bad_reloc Tainted: G     U            4.20.0-rc7-g9373de80d37b-drmtip_175+ #1
<4> [56.649219] Hardware name: GOOGLE Kefka/Kefka, BIOS MrChromebox 02/04/2018
<4> [56.649334] RIP: 0010:reset_all_global_seqno.part.5+0x1d9/0x230 [i915]
<4> [56.649352] Code: 26 77 c6 f2 48 8b 35 be ce 1c 00 49 c7 c0 6b bb 5a c0 b9 98 00 00 00 48 c7 c2 a0 17 59 c0 48 c7 c7 54 a1 49 c0 e8 97 fd cc f2 <0f> 0b 48 c7 c1 e8 65 5c c0 ba 99 00 00 00 48 c7 c6 a0 17 59 c0 48
<4> [56.649393] RSP: 0018:ffffabecc01d7d70 EFLAGS: 00010282
<4> [56.649408] RAX: 000000000000000f RBX: ffff8dc6a9c10008 RCX: 0000000000000000
<4> [56.649426] RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffff8dc6bb02ba78
<4> [56.649444] RBP: ffff8dc6a21877e8 R08: 00000000000231ca R09: ffff8dc6bb02f000
<4> [56.649462] R10: 0000000000000000 R11: ffff8dc6bb02ba78 R12: 0000000000000000
<4> [56.649480] R13: ffff8dc6a2180000 R14: ffff8dc6a21877f8 R15: ffffffffc0499fee
<4> [56.649498] FS:  00007f94c35fe980(0000) GS:ffff8dc6bba00000(0000) knlGS:0000000000000000
<4> [56.649518] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
<4> [56.649533] CR2: 000055869711f910 CR3: 0000000176cd8000 CR4: 00000000001006f0
<4> [56.649551] Call Trace:
<4> [56.649626]  i915_drop_caches_set+0x261/0x270 [i915]
<4> [56.649648]  simple_attr_write+0xb0/0xd0
<4> [56.649666]  full_proxy_write+0x52/0x90
<4> [56.649683]  __vfs_write+0x31/0x180
<4> [56.649698]  ? rcu_read_lock_sched_held+0x6f/0x80
<4> [56.649713]  ? rcu_sync_lockdep_assert+0x29/0x50
<4> [56.649728]  ? __sb_start_write+0x152/0x1f0
<4> [56.649741]  ? __sb_start_write+0x163/0x1f0
<4> [56.649757]  vfs_write+0xbd/0x1b0
<4> [56.649770]  ksys_write+0x50/0xc0
<4> [56.649786]  do_syscall_64+0x55/0x190
<4> [56.649801]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
<4> [56.649816] RIP: 0033:0x7f94c2f8e281
<4> [56.649829] Code: c3 0f 1f 84 00 00 00 00 00 48 8b 05 59 8d 20 00 c3 0f 1f 84 00 00 00 00 00 8b 05 8a d1 20 00 85 c0 75 16 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 57 f3 c3 0f 1f 44 00 00 41 54 55 49 89 d4 53
<4> [56.649870] RSP: 002b:00007ffd0cdef988 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
<4> [56.649891] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f94c2f8e281
<4> [56.649908] RDX: 0000000000000005 RSI: 00007ffd0cdefa10 RDI: 0000000000000007
<4> [56.649926] RBP: 00007ffd0cdef9b0 R08: 0000000000000000 R09: 0000000000000000
<4> [56.649944] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f94c2f77718
<4> [56.649962] R13: 0000000000000003 R14: 00007f94c2f7c628 R15: 00007f94c2f78d80
<4> [56.649987] Modules linked in: vgem snd_hda_codec_hdmi coretemp crct10dif_pclmul crc32_pclmul asix ghash_clmulni_intel i915 usbnet mii btusb btrtl btbcm btintel snd_hda_intel snd_hda_codec bluetooth snd_hwdep snd_hda_core ecdh_generic snd_pcm lpc_ich pinctrl_cherryview prime_numbers