[Bug 101937] New: [945GSE] warning in drm_atomic_commit on boot

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=101937

            Bug ID: 101937
           Summary: [945GSE] warning in drm_atomic_commit on boot
           Product: DRI
           Version: unspecified
          Hardware: x86 (IA32)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: jano.vesely at gmail.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 133002
  --> https://bugs.freedesktop.org/attachment.cgi?id=133002&action=edit
dmesg

I see this warning when booting 4.12.3. No warning on 4.11.1.
[    0.563509] ------------[ cut here ]------------
[    0.563526] WARNING: CPU: 0 PID: 27 at
/usr/src/linux-4.12.3-gentoo/drivers/gpu/drm/drm_atomic_helper.c:842
drm_atomic_helper_update_legacy_modeset_state+0x1f8/0x210
[    0.563528] Modules linked in:
[    0.563536] CPU: 0 PID: 27 Comm: kworker/u4:2 Not tainted 4.12.3-gentoo #2
[    0.563539] Hardware name: Acer AOA110/        , BIOS v0.3310 10/06/2008
[    0.563562] Workqueue: events_unbound async_run_entry_fn
[    0.563567] task: f69f2100 task.stack: f6a92000
[    0.563574] EIP: drm_atomic_helper_update_legacy_modeset_state+0x1f8/0x210
[    0.563576] EFLAGS: 00210246 CPU: 0
[    0.563580] EAX: f6037800 EBX: f611dd20 ECX: f60996c0 EDX: f6a34a00
[    0.563583] ESI: 00000000 EDI: 00000000 EBP: f612a400 ESP: f6a93bac
[    0.563587]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
[    0.563591] CR0: 80050033 CR2: ffd8d000 CR3: 01b4e000 CR4: 000006c0
[    0.563593] Call Trace:
[    0.563615]  ? intel_atomic_commit_tail+0xb12/0x1090
[    0.563621]  ? check_preempt_curr+0x6b/0x80
[    0.563626]  ? ttwu_do_wakeup.isra.84+0x10/0x160
[    0.563630]  ? ttwu_do_activate.isra.85+0x4c/0x60
[    0.563634]  ? try_to_wake_up+0x37/0x410
[    0.563640]  ? __queue_work+0x102/0x3c0
[    0.563646]  ? __i915_sw_fence_complete+0x10d/0x1b0
[    0.563663]  ? ___preempt_schedule+0x8/0xc
[    0.563669]  ? intel_atomic_commit+0x375/0x460
[    0.563675]  ? drm_mode_object_get+0x37/0x50
[    0.563681]  ? refcount_inc+0x9/0x40
[    0.563687]  ? drm_atomic_commit+0x44/0x50
[    0.563693]  ? restore_fbdev_mode+0x14b/0x280
[    0.563713]  ? drm_fb_helper_restore_fbdev_mode_unlocked+0x1f/0x60
[    0.563719]  ? drm_fb_helper_set_par+0x26/0x60
[    0.563725]  ? intel_fbdev_set_par+0xd/0x50
[    0.563730]  ? fbcon_init+0x57d/0x5d0
[    0.563734]  ? con_release_unimap+0x9c/0xc0
[    0.563741]  ? visual_init+0xb0/0x110
[    0.563746]  ? do_bind_con_driver+0x166/0x350
[    0.563765]  ? do_take_over_console+0x126/0x190
[    0.563769]  ? do_fbcon_takeover+0x4f/0xc0
[    0.563775]  ? notifier_call_chain+0x43/0x60
[    0.563781]  ? __blocking_notifier_call_chain+0x36/0x60
[    0.563786]  ? blocking_notifier_call_chain+0x18/0x20
[    0.563791]  ? register_framebuffer+0x1e3/0x320
[    0.563798]  ? drm_fb_helper_initial_config+0x23d/0x3f0
[    0.563805]  ? intel_fbdev_initial_config+0xe/0x30
[    0.563822]  ? async_run_entry_fn+0x32/0xf0
[    0.563827]  ? process_one_work+0x108/0x340
[    0.563832]  ? worker_thread+0x31/0x3a0
[    0.563836]  ? kthread+0xd3/0x100
[    0.563841]  ? process_one_work+0x340/0x340
[    0.563844]  ? kthread_create_on_node+0x30/0x30
[    0.563850]  ? call_usermodehelper_exec_work+0x50/0xb0
[    0.563856]  ? ret_from_fork+0x19/0x24
[    0.563858] Code: 74 26 00 0f b7 4a 22 89 88 f0 01 00 00 0f b7 52 26 89 90
f4 01 00 00 eb d5 66 90 8d 64 24 10 5b 5e 5f 5d c3 8d b4 26 00 00 00 00 <0f> ff
e9 79 fe ff ff 90 0f ff e9 28 ff ff ff 89 f6 8d bc 27 00
[    0.563939] ---[ end trace b679e49ee454f6d0 ]---

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