BSW: igt@i915_selftest@live@hugepages|igt@i915_selftest@live@requests - dmesg-warn - Memory manager not clean during takedown.WARNING: CPU: \d PID: \d+ at drivers/gpu/drm/drm_mm.c:\d+ drm_mm_takedown
https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5906/fi-bsw-kefka/igt@i915_selftest@live@hugepages.html
<4> [514.248334] i915: probe of 0000:00:02.0 failed with error -25
<4> [514.286450] ------------[ cut here ]------------
<4> [514.286495] Memory manager not clean during takedown.
<4> [514.286614] WARNING: CPU: 0 PID: 5094 at drivers/gpu/drm/drm_mm.c:999 drm_mm_takedown+0x51/0x100
<4> [514.286623] Modules linked in: i915 vgem snd_hda_codec_hdmi coretemp btusb asix btrtl btbcm crct10dif_pclmul btintel crc32_pclmul ghash_clmulni_intel usbnet mii bluetooth ecdh_generic ecc snd_intel_dspcfg snd_hda_codec snd_hwdep snd_hda_core snd_pcm pinctrl_cherryview prime_numbers lpc_ich [last unloaded: i915]
<4> [514.286832] CPU: 0 PID: 5094 Comm: kworker/u4:4 Tainted: G U 5.10.0-CI-CI_DRM_9496+ #1
<4> [514.286840] Hardware name: GOOGLE Kefka/Kefka, BIOS MrChromebox 02/04/2018
<4> [514.287030] Workqueue: i915 __i915_gem_free_work [i915]
<4> [514.287060] RIP: 0010:drm_mm_takedown+0x51/0x100
<4> [514.287073] Code: 44 24 08 65 48 33 04 25 28 00 00 00 0f 85 b6 00 00 00 48 83 c4 10 5b 5d 41 5c c3 48 89 fb 48 c7 c7 a8 6f 38 82 e8 35 97 37 00 <0f> 0b 48 8b 3d 96 16 d2 00 ba 00 10 00 00 be c0 0c 00 00 e8 47 8d
<4> [514.287083] RSP: 0018:ffffc900003abdc0 EFLAGS: 00010282
<4> [514.287098] RAX: 0000000000000000 RBX: ffff88812ad6a278 RCX: 0000000000000001
<4> [514.287106] RDX: 0000000080000001 RSI: ffffffff8234a8b7 RDI: 00000000ffffffff
<4> [514.287114] RBP: ffff88812ad6a2b0 R08: 0000000000000001 R09: 0000000000000001
<4> [514.287122] R10: 0000000008b49b2d R11: 0000000068517bf2 R12: ffff888104fac7c0
<4> [514.287130] R13: 00000000ffffffff R14: ffffffff828606b0 R15: ffff888121690af8
<4> [514.287139] FS: 0000000000000000(0000) GS:ffff88817b800000(0000) knlGS:0000000000000000
<4> [514.287147] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
<4> [514.287155] CR2: 00007fff1e18afe8 CR3: 0000000104ba0000 CR4: 00000000001006f0
<4> [514.287162] Call Trace:
<4> [514.287290] __intel_memory_region_destroy+0x24/0x50 [i915]
<4> [514.287428] i915_gem_object_release_stolen+0x26/0x40 [i915]
<4> [514.287562] __i915_gem_free_objects.isra.21+0x1ef/0x3b0 [i915]
<4> [514.287684] process_one_work+0x270/0x5c0
<4> [514.287719] worker_thread+0x37/0x380
<4> [514.287738] ? process_one_work+0x5c0/0x5c0
<4> [514.287750] kthread+0x146/0x170
<4> [514.287761] ? kthread_park+0x80/0x80
<4> [514.287780] ret_from_fork+0x22/0x30
<4> [514.287824] irq event stamp: 1068709
<4> [514.287835] hardirqs last enabled at (1068715): [<ffffffff81128eea>] console_unlock+0x49a/0x580
<4> [514.287844] hardirqs last disabled at (1068720): [<ffffffff81128e56>] console_unlock+0x406/0x580
<4> [514.287855] softirqs last enabled at (1068668): [<ffffffff81e00342>] __do_softirq+0x342/0x48e
<4> [514.287864] softirqs last disabled at (1068661): [<ffffffff81c00f52>] asm_call_irq_on_stack+0x12/0x20
<4> [514.287873] ---[ end trace b016daa1a4b647fb ]---
<3> [514.292867] [drm:drm_mm_takedown] *ERROR* node [00025000 + 00004000]: inserted at
drm_mm_insert_node_in_range+0x34a/0x5b0
i915_gem_stolen_insert_node_in_range+0x7b/0xa0 [i915]
_i915_gem_object_create_stolen+0x83/0xd0 [i915]
i915_gem_object_create_region+0x61/0x140 [i915]
intel_engine_create_ring+0x176/0x230 [i915]
__execlists_context_alloc+0xdf/0x290 [i915]
intel_context_alloc_state+0x4b/0x70 [i915]
__intel_context_do_pin_ww+0x524/0x700 [i915]
intel_context_create_request+0x124/0x150 [i915]
igt_gpu_fill_dw+0x97/0x2f0 [i915]
__igt_write_huge+0xae/0x120 [i915]
igt_write_huge+0x2e9/0x410 [i915]
igt_ppgtt_smoke_huge+0x30d/0x530 [i915]
__i915_subtests.cold.7+0x42/0x92 [i915]
i915_gem_huge_page_live_selftests+0x106/0x150 [i915]
__run_selftests.part.3+0xf7/0x14c [i915]
i915_live_selftests.cold.5+0x1f/0x47 [i915]
i915_pci_probe+0x93/0x1d0 [i915]
pci_device_probe+0x9e/0x110
really_probe+0x1c4/0x430
driver_probe_device+0xd9/0x140
device_driver_attach+0x4a/0x50
__driver_atta