[Bug 101791] New: [BAT][SKL][GVT-d] igt at drv_module_reload@basic-reload-inject produces a general protection fault

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=101791

            Bug ID: 101791
           Summary: [BAT][SKL][GVT-d]
                    igt at drv_module_reload@basic-reload-inject produces a
                    general protection fault
           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: martin.peres at free.fr
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

On CI_DRM_2826, the machine fi-skl-gvtdvm produced a general protection fault,
when running the test igt at drv_module_reload@basic-reload-inject.

Here is the fault:

[  492.780615] general protection fault: 0000 [#1] PREEMPT SMP
[  492.780622] Modules linked in: i915(-) snd_hda_codec snd_hwdep snd_hda_core
snd_pcm vgem crct10dif_pclmul crc32_pclmul ghash_clmulni_intel prime_numbers
e1000 i2c_piix4 [last unloaded: snd_hda_intel]
[  492.780650] CPU: 0 PID: 175 Comm: kworker/0:3 Tainted: G     U  W      
4.12.0-CI-CI_DRM_2826+ #1
[  492.780659] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
rel-1.10.1-0-g8891697-prebuilt.qemu-project.org 04/01/2014
[  492.780671] Workqueue: events output_poll_execute
[  492.780677] task: ffff88007aee4f40 task.stack: ffffc900001e0000
[  492.780684] RIP: 0010:drm_setup_crtcs+0x144/0xc00
[  492.780690] RSP: 0018:ffffc900001e3ce8 EFLAGS: 00010202
[  492.780697] RAX: 6b6b6b6b6b6b6b6b RBX: 000000000000002b RCX:
0000000000000001
[  492.780704] RDX: 0000000000000384 RSI: 0000000000000640 RDI:
00000000ffffffff
[  492.780711] RBP: ffffc900001e3d80 R08: 0000000000000001 R09:
0000000000000000
[  492.780718] R10: 00000000000002d0 R11: 0000000000000000 R12:
0000000000000002
[  492.780727] R13: 0000000000000640 R14: 0000000000000384 R15:
ffff88007571ddd8
[  492.780734] FS:  0000000000000000(0000) GS:ffff88007fc00000(0000)
knlGS:0000000000000000
[  492.780744] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  492.780750] CR2: 00007f4ddb07d000 CR3: 0000000074c50000 CR4:
00000000003406f0
[  492.780757] Call Trace:
[  492.780764]  drm_fb_helper_hotplug_event.part.15+0x6e/0x90
[  492.780771]  drm_fb_helper_hotplug_event+0x15/0x20
[  492.780802]  intel_fbdev_output_poll_changed+0x15/0x20 [i915]
[  492.780809]  drm_kms_helper_hotplug_event+0x22/0x30
[  492.780815]  output_poll_execute+0x94/0x190
[  492.780823]  process_one_work+0x1fe/0x670
[  492.780830]  worker_thread+0x201/0x3b0
[  492.780836]  kthread+0x10f/0x150
[  492.780841]  ? process_one_work+0x670/0x670
[  492.780847]  ? kthread_create_on_node+0x40/0x40
[  492.780854]  ret_from_fork+0x27/0x40
[  492.780859] Code: 20 31 db 45 31 e4 85 c0 0f 8e aa 06 00 00 44 8b 6d 94 44
8b 75 90 49 8b 47 28 49 63 d4 44 89 ee 41 83 c4 01 48 8b 04 d0 44 89 f2 <48> 8b
38 48 8b 87 60 01 00 00 ff 50 20 01 c3 45 3b 67 20 7c d6 
[  492.780915] RIP: drm_setup_crtcs+0x144/0xc00 RSP: ffffc900001e3ce8
[  492.781914] ---[ end trace 366146d5da34f1ad ]---

Full results:
https://intel-gfx-ci.01.org/CI/CI_DRM_2826/fi-skl-gvtdvm/igt@drv_module_reload@basic-reload-inject.html

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