[Bug 105873] New: [i915]Failed to release pages: bind_count=1, pages_pin_count=1, pin_display=0 on kernel 4.14.20

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=105873

            Bug ID: 105873
           Summary: [i915]Failed to release pages: bind_count=1,
                    pages_pin_count=1, pin_display=0 on kernel 4.14.20
           Product: DRI
           Version: unspecified
          Hardware: Other
                OS: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: owen.zhang at intel.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 138562
  --> https://bugs.freedesktop.org/attachment.cgi?id=138562&action=edit
dmesg_and_i915_error_states_dump

#: dmesg dump: 
kern  :warn  : [30996.849134] Failed to release pages: bind_count=1,
pages_pin_count=1, pin_display=0
kern  :warn  : [30996.849443] ------------[ cut here ]------------
kern  :warn  : [30996.849761] WARNING: CPU: 2 PID: 13057 at
drivers/gpu/drm/i915/i915_gem_userptr.c:89 cancel_userptr+0xdc/0xe0 [i915]
kern  :warn  : [30996.850091] Modules linked in: cmac arc4 md4 nls_utf8 cifs
ccm dns_resolver vfat fat intel_rapl x86_pkg_temp_thermal intel_powerclamp
coretemp kvm irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc
iTCO_wdt ipmi_si aesni_intel iTCO_vendor_support crypto_simd ipmi_devintf
glue_helper ppdev cryptd i2c_i801 ipmi_msghandler pcspkr sg lpc_ich parport_pc
parport shpchp acpi_cpufreq ip_tables ext4 mbcache jbd2 sr_mod cdrom sd_mod igb
ahci ptp libahci i915(OE) drm_kms_helper(OE) syscopyarea pps_core sysfillrect
libata sysimgblt fb_sys_fops dca i2c_algo_bit drm(OE) crc32c_intel i2c_core
video
kern  :warn  : [30996.852075] CPU: 2 PID: 13057 Comm: kworker/u32:4 Tainted: G 
   U     OE   4.14.20-dcg20180302-gcc4.8.5 #1
kern  :warn  : [30996.852530] Hardware name: Intel Corporation S1200RP/S1200RP,
BIOS S1200RP.86B.03.00.0x43.122320141434 12/23/2014
kern  :warn  : [30996.853018] Workqueue: i915-userptr-release cancel_userptr
[i915]
kern  :warn  : [30996.853499] task: ffff942edbd60000 task.stack:
ffffa673d183c000
kern  :warn  : [30996.854002] RIP: 0010:cancel_userptr+0xdc/0xe0 [i915]
kern  :warn  : [30996.854500] RSP: 0018:ffffa673d183fe60 EFLAGS: 00010246
kern  :warn  : [30996.855000] RAX: 0000000000000047 RBX: ffff942eda2bc200 RCX:
0000000000000000
kern  :warn  : [30996.855516] RDX: 0000000000000000 RSI: ffff942ee0896978 RDI:
ffff942ee0896978
kern  :warn  : [30996.856038] RBP: ffff942eda2bc3b0 R08: 0000000000000000 R09:
000000000000043d
kern  :warn  : [30996.856570] R10: 0000000000000001 R11: 0000000000aaaaaa R12:
0000000000000000
kern  :warn  : [30996.857104] R13: ffff942eddd3a400 R14: 0000000000000000 R15:
ffff942dd7b853d8
kern  :warn  : [30996.857643] FS:  0000000000000000(0000)
GS:ffff942ee0880000(0000) knlGS:0000000000000000
kern  :warn  : [30996.858202] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
kern  :warn  : [30996.858764] CR2: 00007f735000f000 CR3: 000000035700a005 CR4:
00000000003606e0
kern  :warn  : [30996.859338] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
kern  :warn  : [30996.859922] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7:
0000000000000400
kern  :warn  : [30996.860501] Call Trace:
kern  :warn  : [30996.861083]  process_one_work+0x141/0x340
kern  :warn  : [30996.861672]  worker_thread+0x47/0x3e0
kern  :warn  : [30996.862259]  kthread+0xfc/0x130
kern  :warn  : [30996.862849]  ? rescuer_thread+0x380/0x380
kern  :warn  : [30996.863425]  ? kthread_park+0x60/0x60
kern  :warn  : [30996.863986]  ret_from_fork+0x35/0x40
kern  :warn  : [30996.864554] Code: 05 11 00 00 75 dc 8b 93 d0 01 00 00 8b 8b
ac 01 00 00 48 c7 c7 c8 97 61 c0 8b b3 a4 01 00 00 c6 05 e7 04 11 00 01 e8 71
a6 b7 dc <0f> ff eb b3 0f 1f 44 00 00 41 57 41 56 41 55 41 54 55 53 48 89 
kern  :warn  : [30996.865776] ---[ end trace 478aed6f3aca9d7a ]---

System: CentOS7.4
the kernel version: 4.14.20(from kernel org)

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