[Bug 92718] New: [REGRESSION] 4.3.0-rc7 - Multiple identical kernel warnings from drm_atomic.c:491 drm_atomic_check_only

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=92718

            Bug ID: 92718
           Summary: [REGRESSION] 4.3.0-rc7 - Multiple identical kernel
                    warnings from drm_atomic.c:491 drm_atomic_check_only
           Product: DRI
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: dri at kiffy.de
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Hello,

Tested latest kernel RCs (rc6 and rc7) from kernel.org.
Getting multiple identical kernel warnings during boot (both RCs). It is ugly
but the system seems fine otherwise.

Notebook has Intel GME965/GLE960 mobile graphics.
Please notify if further info is needed.

Best Regards

Karsten Hohmeier

[drm] initialized overlay support
------------[ cut here ]------------
WARNING: CPU: 1 PID: 88 at drivers/gpu/drm/drm_atomic.c:491
drm_atomic_check_only+0x4e9/0x580 [drm]()
Modules linked in: iTCO_wdt iTCO_vendor_support hp_wmi(+) sparse_keymap
snd_hda_codec_hdmi arc4 iwl3945 snd_hda_codec_analog iwlegacy
snd_hda_codec_generic i915(+) coretemp snd_hda_intel drm_kms_helper mac80211
snd_hda_codec psmouse evdev snd_hwdep drm serio_raw snd_hda_core pcspkr lpc_ich
mfd_core i2c_algo_bit cfg80211 i2c_core snd_pcm rfkill snd_timer snd soundcore
shpchp battery wmi tpm_infineon tpm_tis tpm video hp_accel acpi_cpufreq
lis3lv02d input_polldev ac processor button loop fuse parport_pc ppdev lp
parport autofs4 ext4 crc16 mbcache jbd2 dm_mod sg sr_mod cdrom sd_mod
ata_generic ahci ata_piix libahci libata scsi_mod fan thermal ehci_pci uhci_hcd
ehci_hcd usbcore e1000e usb_common ptp pps_core
CPU: 1 PID: 88 Comm: kworker/u4:2 Not tainted 4.3.0-rc7+ #2
Hardware name: Hewlett-Packard HP Compaq 6720s/30D8, BIOS 68MDU Ver. F.0D
11/04/2008
Workqueue: events_unbound async_run_entry_fn
 ffffffffa04124ee ffffffff812bb9c3 0000000000000000 ffffffff8106c541
 ffff88007b03f000 0000000000000000 ffff88007b401600 0000000000000001
 0000000000000000 ffffffffa03fd859 ffff88007b03f000 ffff88007a0ec000
Call Trace:
 [<ffffffff812bb9c3>] ? dump_stack+0x40/0x5d
 [<ffffffff8106c541>] ? warn_slowpath_common+0x81/0xb0
 [<ffffffffa03fd859>] ? drm_atomic_check_only+0x4e9/0x580 [drm]
 [<ffffffffa03fcbb2>] ? drm_atomic_set_crtc_for_plane+0x72/0xf0 [drm]
 [<ffffffffa03fd902>] ? drm_atomic_commit+0x12/0x60 [drm]
 [<ffffffffa063346d>] ? intel_get_load_detect_pipe+0x3dd/0x540 [i915]
 [<ffffffffa066944d>] ? intel_tv_detect+0x13d/0x570 [i915]
 [<ffffffffa03f0a47>] ? drm_property_replace_global_blob+0xc7/0x120 [drm]
 [<ffffffffa05a9a4b>] ?
drm_helper_probe_single_connector_modes_merge_bits+0x28b/0x4a0 [drm_kms_helper]
 [<ffffffffa05b3aa5>] ? drm_fb_helper_probe_connector_modes.isra.3+0x45/0x60
[drm_kms_helper]
 [<ffffffffa05b4cb1>] ? drm_fb_helper_initial_config+0x41/0x3b0
[drm_kms_helper]
 [<ffffffff8108b033>] ? async_run_entry_fn+0x43/0x150
 [<ffffffff81082fcc>] ? process_one_work+0x14c/0x3d0
 [<ffffffff81083965>] ? worker_thread+0x65/0x460
 [<ffffffff81083900>] ? rescuer_thread+0x2f0/0x2f0
 [<ffffffff8108892f>] ? kthread+0xcf/0xf0
 [<ffffffff81088860>] ? kthread_park+0x50/0x50
 [<ffffffff8153338f>] ? ret_from_fork+0x3f/0x70
 [<ffffffff81088860>] ? kthread_park+0x50/0x50
---[ end trace 226220945234194c ]---
fbcon: inteldrmfb (fb0) is primary device
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