[Bug 92718] [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

--- Comment #3 from Karsten Hohmeier <dri at kiffy.de> ---
Tested with 4.4.1 from kernel.org, the error in drm_atomic.c is gone.

But a new one in drm_irq.c showed up. This one is seriously spamming my system
logs.

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WARNING: CPU: 1 PID: 1003 at drivers/gpu/drm/drm_irq.c:1268
drm_wait_one_vblank+0x13b/0x180 [drm]()
vblank wait timed out on crtc 0
Modules linked in: cpufreq_stats cpufreq_userspace pci_stub
cpufreq_conservative vboxpci(O) cpufreq_powersave vboxnetadp(O) vboxnetflt(O)
vboxdrv(O) nfsd auth_rpcgss oid_registry nfs_acl nfs lockd grace fscache sunrpc
joydev hid_generic usbhid hid iTCO_wdt iTCO_vendor_support hp_wmi sparse_keymap
arc4 coretemp evdev iwl3945 psmouse serio_raw pcspkr iwlegacy
snd_hda_codec_hdmi i915 mac80211 snd_hda_codec_analog snd_hda_codec_generic
snd_hda_intel snd_hda_codec snd_hwdep drm_kms_helper lpc_ich mfd_core cfg80211
snd_hda_core snd_pcm rfkill snd_timer drm snd soundcore shpchp i2c_algo_bit
i2c_core wmi battery tpm_infineon hp_accel acpi_cpufreq lis3lv02d video tpm_tis
input_polldev tpm ac button processor loop fuse parport_pc ppdev lp parport
autofs4 usb_storage ext4 crc16 mbcache jbd2 dm_mod sg sd_mod sr_mod cdrom
ata_generic ahci libahci ata_piix libata scsi_mod fan thermal ehci_pci uhci_hcd
ehci_hcd usbcore usb_common e1000e ptp pps_core
CPU: 1 PID: 1003 Comm: Xorg Tainted: G        W  O    4.4.1+ #5
Hardware name: Hewlett-Packard HP Compaq 6720s/30D8, BIOS 68MDU Ver. F.0D
11/04/2008
 ffffffffa036246d ffffffff812c23c3 ffff88007a74fa00 ffffffff8106db61
 0000000000000000 ffff88007a74fa50 0000000000000000 000000000b000006
 ffff88007b470c08 ffffffff8106dbdc ffffffffa0365198 0000000000000020
Call Trace:
 [<ffffffff812c23c3>] ? dump_stack+0x40/0x5d
 [<ffffffff8106db61>] ? warn_slowpath_common+0x81/0xb0
 [<ffffffff8106dbdc>] ? warn_slowpath_fmt+0x4c/0x50
 [<ffffffffa0336fbb>] ? drm_wait_one_vblank+0x13b/0x180 [drm]
 [<ffffffff810a8df0>] ? wait_woken+0x90/0x90
 [<ffffffffa05e7e87>] ? intel_get_load_detect_pipe+0x537/0x540 [i915]
 [<ffffffffa06200ad>] ? intel_tv_detect+0x13d/0x570 [i915]
 [<ffffffffa0473ab3>] ?
drm_helper_probe_single_connector_modes_merge_bits+0x293/0x4b0 [drm_kms_helper]
 [<ffffffff8153e15e>] ? mutex_lock+0xe/0x30
 [<ffffffffa03423cf>] ? drm_mode_getconnector+0x2df/0x330 [drm]
 [<ffffffffa0335346>] ? drm_ioctl+0x126/0x490 [drm]
 [<ffffffffa03420f0>] ? drm_mode_getcrtc+0x120/0x120 [drm]
 [<ffffffff811f79a9>] ? fsnotify_destroy_marks+0x59/0x70
 [<ffffffff811cc374>] ? do_vfs_ioctl+0x2c4/0x490
 [<ffffffff811cc5b6>] ? SyS_ioctl+0x76/0x90
 [<ffffffff81003310>] ? exit_to_usermode_loop+0xa0/0xc0
 [<ffffffff8153ff36>] ? entry_SYSCALL_64_fastpath+0x16/0x75
---[ end trace 06f1669746ac2817 ]---
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