[Bug 102707] New: [CI][HSW, SNB] igt at drv_module_reload@basic-reload-inject dmesg-warn in drm_mode_config_cleanup

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=102707

            Bug ID: 102707
           Summary: [CI][HSW, SNB]
                    igt at drv_module_reload@basic-reload-inject dmesg-warn
                    in drm_mode_config_cleanup
           Product: DRI
           Version: DRI git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: marta.lofstedt at intel.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

CI_DRM_3082 HSW- and SNB-shards

[   60.712670] ------------[ cut here ]------------
[   60.712677] WARNING: CPU: 0 PID: 1597 at
drivers/gpu/drm/drm_mode_config.c:465 drm_mode_config_cleanup+0x250/0x270
[   60.712679] Modules linked in: vgem snd_hda_codec_hdmi snd_hda_codec_realtek
snd_hda_codec_generic i915(-) x86_pkg_temp_thermal intel_powerclamp coretemp
broadcom crct10dif_pclmul bcm_phy_lib snd_hda_codec crc32_pclmul snd_hwdep
snd_hda_core ghash_clmulni_intel tg3 ptp snd_pcm pps_core mei_me lpc_ich
prime_numbers mei [last unloaded: snd_hda_intel]
[   60.712727] CPU: 0 PID: 1597 Comm: drv_module_relo Tainted: G     U         
4.13.0-CI-CI_DRM_3082+ #1
[   60.712729] Hardware name: Dell Inc. XPS 8300  /0Y2MRG, BIOS A06 10/17/2011
[   60.712731] task: ffff88021ff8a800 task.stack: ffffc90000a94000
[   60.712734] RIP: 0010:drm_mode_config_cleanup+0x250/0x270
[   60.712736] RSP: 0018:ffffc90000a97d80 EFLAGS: 00010283
[   60.712740] RAX: ffff88021f50f0b0 RBX: ffff880212440890 RCX:
0000000000000001
[   60.712742] RDX: ffff8802124408b8 RSI: 0000000000000000 RDI:
ffff880212440890
[   60.712744] RBP: ffffc90000a97da8 R08: 0000000000000000 R09:
0000000000000000
[   60.712746] R10: ffffc90000a97d00 R11: 0000000000000000 R12:
ffff880212440000
[   60.712748] R13: ffff8802124406a8 R14: ffffffffa02d3d88 R15:
ffff88022585b848
[   60.712750] FS:  00007f6ed98888c0(0000) GS:ffff88022fa00000(0000)
knlGS:0000000000000000
[   60.712752] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   60.712755] CR2: 000055c9bd6a2ec0 CR3: 0000000219a1d000 CR4:
00000000000406f0
[   60.712756] Call Trace:
[   60.712786]  intel_modeset_cleanup+0x66/0xa0 [i915]
[   60.712804]  i915_driver_unload+0x92/0x180 [i915]
[   60.712822]  i915_pci_remove+0x19/0x30 [i915]
[   60.712826]  pci_device_remove+0x39/0xb0
[   60.712831]  device_release_driver_internal+0x15d/0x220
[   60.712835]  driver_detach+0x40/0x80
[   60.712839]  bus_remove_driver+0x58/0xd0
[   60.712842]  driver_unregister+0x2c/0x40
[   60.712845]  pci_unregister_driver+0x36/0xb0
[   60.712872]  i915_exit+0x1a/0x8b [i915]
[   60.712876]  SyS_delete_module+0x18c/0x1e0
[   60.712882]  entry_SYSCALL_64_fastpath+0x1c/0xb1
[   60.712884] RIP: 0033:0x7f6ed7da2287
[   60.712886] RSP: 002b:00007ffeb58e4858 EFLAGS: 00000246 ORIG_RAX:
00000000000000b0
[   60.712890] RAX: ffffffffffffffda RBX: ffffffff8148a713 RCX:
00007f6ed7da2287
[   60.712892] RDX: 0000000000000001 RSI: 0000000000000800 RDI:
0000563e66b4c9e8
[   60.712894] RBP: ffffc90000a97f88 R08: 0000000000000000 R09:
0000000000000080
[   60.712896] R10: 00007f6ed98888c0 R11: 0000000000000246 R12:
0000000000000000
[   60.712898] R13: 00007ffeb58e4a40 R14: 0000000000000000 R15:
0000000000000000
[   60.712903]  ? __this_cpu_preempt_check+0x13/0x20
[   60.712908] Code: da 31 f6 48 c7 c7 e3 d9 c7 81 e8 5c 61 fe ff 48 8d 7d d8
e8 03 a0 ff ff 48 85 c0 75 dd 48 8d 7d d8 e8 a5 a0 ff ff e9 45 fe ff ff <0f> ff
e9 3a ff ff ff 0f ff 48 83 c4 10 5b 41 5c 41 5d 5d c3 66 
[   60.713037] ---[ end trace 8f77174a31f4f41e ]---

See comment in driver/gpu/drm/drm_mode_config.c  
* Also, if there are any framebuffers left, that's a driver leak now,
* so politely WARN about this.
*/
WARN_ON(!list_empty(&dev->mode_config.fb_list));


Full data:
https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3082/shard-snb5/igt@drv_module_reload@basic-reload-inject.html
https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3082/shard-hsw2/igt@drv_module_reload@basic-reload-inject.html

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