[Bug 104512] [i915]Failed to release pages: bind_count=1, pages_pin_count=1, pin_display=0

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=104512

--- Comment #10 from Laurent Bonnaud <L.Bonnaud at laposte.net> ---
This bug is still there in Linux 4.15.1:

[63888.246282] ------------[ cut here ]------------
[63888.246287] Failed to release pages: bind_count=1, pages_pin_count=1,
pin_global=0
[63888.246412] WARNING: CPU: 1 PID: 21997 at
/home/kernel/COD/linux/drivers/gpu/drm/i915/i915_gem_userptr.c:89
cancel_userptr+0xe8/0xf0 [i915]
[63888.246414] Modules linked in: ipt_REJECT nf_reject_ipv4 rfcomm bnep
xt_multiport iptable_filter binfmt_misc snd_hda_codec_hdmi snd_soc_skl
snd_soc_skl_ipc intel_rapl x86_pkg_temp_thermal intel_powerclamp
snd_hda_ext_core kvm_intel snd_soc_sst_dsp snd_soc_sst_ipc
snd_hda_codec_realtek snd_soc_acpi snd_hda_codec_generic snd_soc_core kvm
snd_compress ac97_bus snd_pcm_dmaengine irqbypass snd_hda_intel
crct10dif_pclmul snd_hda_codec crc32_pclmul snd_hda_core snd_hwdep
ghash_clmulni_intel dm_crypt pcbc snd_pcm aesni_intel aes_x86_64 crypto_simd
glue_helper cryptd intel_cstate intel_rapl_perf snd_seq_midi snd_seq_midi_event
snd_rawmidi snd_seq snd_seq_device snd_timer snd wmi_bmof intel_wmi_thunderbolt
soundcore rtsx_pci_ms memstick shpchp btusb btrtl btbcm ir_rc6_decoder btintel
bluetooth joydev input_leds
[63888.246499]  ecdh_generic intel_pch_thermal mei_me mei rc_rc6_mce
ir_lirc_codec lirc_dev ite_cir rc_core tpm_crb acpi_pad mac_hid hwmon_vid
coretemp ip_tables x_tables autofs4 btrfs zstd_compress raid10 raid456
async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq
libcrc32c raid1 raid0 multipath linear uas usb_storage hid_logitech_hidpp
hid_logitech_dj usbhid hid rtsx_pci_sdmmc i915 i2c_algo_bit drm_kms_helper
e1000e ptp pps_core syscopyarea sysfillrect sysimgblt fb_sys_fops rtsx_pci ahci
drm libahci wmi video
[63888.246577] CPU: 1 PID: 21997 Comm: kworker/u4:7 Not tainted
4.15.1-041501-generic #201802031831
[63888.246580] Hardware name:                  /NUC7i5BNB, BIOS
BNKBL357.86A.0061.2017.1221.1952 12/21/2017
[63888.246636] Workqueue: i915-userptr-release cancel_userptr [i915]
[63888.246683] RIP: 0010:cancel_userptr+0xe8/0xf0 [i915]
[63888.246686] RSP: 0018:ffffb8ea83efbe60 EFLAGS: 00010282
[63888.246691] RAX: 0000000000000000 RBX: ffff95e2cd8e9800 RCX:
0000000000000006
[63888.246693] RDX: 0000000000000007 RSI: 0000000000000082 RDI:
ffff95e57ed16450
[63888.246696] RBP: ffffb8ea83efbe78 R08: 0000000000000001 R09:
00000000000003cd
[63888.246698] R10: 0000000000000000 R11: 0000000000000000 R12:
ffff95e2cd8e99a8
[63888.246700] R13: 0000000000000000 R14: ffff95e55e010800 R15:
ffff95e2e4c33180
[63888.246704] FS:  0000000000000000(0000) GS:ffff95e57ed00000(0000)
knlGS:0000000000000000
[63888.246707] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[63888.246710] CR2: 00007ffd1c908d80 CR3: 0000000692a0a001 CR4:
00000000003606e0
[63888.246712] Call Trace:
[63888.246724]  process_one_work+0x1ef/0x410
[63888.246729]  worker_thread+0x32/0x410
[63888.246735]  kthread+0x121/0x140
[63888.246739]  ? process_one_work+0x410/0x410
[63888.246745]  ? kthread_create_worker_on_cpu+0x70/0x70
[63888.246751]  ret_from_fork+0x35/0x40
[63888.246754] Code: bf 46 ff ff eb c9 8b 93 c8 01 00 00 8b 8b a4 01 00 00 48
c7 c7 f0 e7 34 c0 8b b3 9c 01 00 00 c6 05 25 37 10 00 01 e8 e8 3f 61 ec <0f> ff
eb bc 0f 1f 40 00 0f 1f 44 00 00 55 ba 08 00 00 00 48 89
[63888.246841] ---[ end trace 152f51efba506b0d ]---

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