[Bug 98618] New: [skl] WARN_ON(!intel_pstate->base.fb) spam

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=98618

            Bug ID: 98618
           Summary: [skl] WARN_ON(!intel_pstate->base.fb) spam
           Product: DRI
           Version: XOrg git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: chris at chris-wilson.co.uk
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Nov  6 17:28:53 skylake kernel: [ 2330.654222] WARNING: CPU: 3 PID: 1212 at
drivers/gpu/drm/i915/intel_pm.c:3743 skl_compute_wm+0xbc0/0x1370
Nov  6 17:28:53 skylake kernel: [ 2330.654222] WARN_ON(!intel_pstate->base.fb)
Nov  6 17:28:53 skylake kernel: [ 2330.654223] Modules linked in:
Nov  6 17:28:53 skylake kernel: [ 2330.654224]  hid_generic hidp rfcomm bnep
binfmt_misc nls_iso8859_1 snd_hda_codec_hdmi input_leds snd_hda_codec_realtek
snd_hda_codec_generic snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep
snd_pcm btusb btrtl 8250_dw snd_seq_midi snd_seq_midi_event iwlwifi snd_rawmidi
hid_lenovo snd_seq idma64 x86_pkg_temp_thermal virt_dma coretemp snd_seq_device
cfg80211 hci_uart snd_timer crct10dif_pclmul crc32_pclmul ghash_clmulni_intel
btbcm btqca aesni_intel btintel aes_x86_64 bluetooth snd lrw gf128mul
glue_helper ablk_helper cryptd soundcore intel_lpss_pci intel_pch_thermal
intel_lpss_acpi acpi_als intel_lpss kfifo_buf mfd_core industrialio acpi_pad
autofs4 hid_plantronics dm_mirror usbhid dm_region_hash dm_log sdhci_pci ahci
sdhci libahci i2c_hid hid
Nov  6 17:28:53 skylake kernel: [ 2330.654255] CPU: 3 PID: 1212 Comm: Xorg Not
tainted 4.9.0-rc3+ #216
Nov  6 17:28:53 skylake kernel: [ 2330.654256] Hardware name:                 
/NUC6i3SYB, BIOS SYSKLi35.86A.0024.2015.1027.2142 10/27/2015
Nov  6 17:28:53 skylake kernel: [ 2330.654257]  ffffc900007af9f8
ffffffff812bb1a8 ffffc900007afa48 0000000000000000
Nov  6 17:28:53 skylake kernel: [ 2330.654259]  ffffc900007afa38
ffffffff8104f5f1 00000e9f00000000 0000000000000000
Nov  6 17:28:53 skylake kernel: [ 2330.654260]  ffff88084bcb4800
ffff8808441be0c0 ffff880845760800 0000000000000000
Nov  6 17:28:53 skylake kernel: [ 2330.654262] Call Trace:
Nov  6 17:28:53 skylake kernel: [ 2330.654266]  [<ffffffff812bb1a8>]
dump_stack+0x4d/0x65
Nov  6 17:28:53 skylake kernel: [ 2330.654268]  [<ffffffff8104f5f1>]
__warn+0xc1/0xe0
Nov  6 17:28:53 skylake kernel: [ 2330.654269]  [<ffffffff8104f66a>]
warn_slowpath_fmt+0x5a/0x80
Nov  6 17:28:53 skylake kernel: [ 2330.654271]  [<ffffffff81402dc0>]
skl_compute_wm+0xbc0/0x1370
Nov  6 17:28:53 skylake kernel: [ 2330.654274]  [<ffffffff81460b11>]
intel_atomic_check+0x471/0x1100
Nov  6 17:28:53 skylake kernel: [ 2330.654275]  [<ffffffff813e0bac>]
drm_atomic_check_only+0x45c/0x580
Nov  6 17:28:53 skylake kernel: [ 2330.654277]  [<ffffffff813e0d33>]
drm_atomic_nonblocking_commit+0x13/0x50
Nov  6 17:28:53 skylake kernel: [ 2330.654279]  [<ffffffff813c3138>]
drm_atomic_helper_page_flip+0x118/0x150
Nov  6 17:28:53 skylake kernel: [ 2330.654281]  [<ffffffff813e7a1c>]
drm_mode_page_flip_ioctl+0x38c/0x430
Nov  6 17:28:53 skylake kernel: [ 2330.654283]  [<ffffffff813cd7f1>]
drm_ioctl+0x1f1/0x4a0
Nov  6 17:28:53 skylake kernel: [ 2330.654285]  [<ffffffff813e7690>] ?
drm_mode_cursor2_ioctl+0x10/0x10
Nov  6 17:28:53 skylake kernel: [ 2330.654288]  [<ffffffff812c4269>] ?
timerqueue_add+0x59/0xb0
Nov  6 17:28:53 skylake kernel: [ 2330.654290]  [<ffffffff810a1dc8>] ?
hrtimer_start_range_ns+0x1c8/0x350
Nov  6 17:28:53 skylake kernel: [ 2330.654292]  [<ffffffff811876ac>]
do_vfs_ioctl+0x9c/0x5c0
Nov  6 17:28:53 skylake kernel: [ 2330.654294]  [<ffffffff8105a8d5>] ?
recalc_sigpending+0x15/0x40
Nov  6 17:28:53 skylake kernel: [ 2330.654295]  [<ffffffff8105b547>] ?
__set_task_blocked+0x37/0x90
Nov  6 17:28:53 skylake kernel: [ 2330.654298]  [<ffffffff8161319b>] ?
__sys_recvmsg+0x7b/0x90
Nov  6 17:28:53 skylake kernel: [ 2330.654299]  [<ffffffff81187c0c>]
SyS_ioctl+0x3c/0x70
Nov  6 17:28:53 skylake kernel: [ 2330.654301]  [<ffffffff81713024>]
entry_SYSCALL_64_fastpath+0x17/0x98

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