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<body><span class="vcard"><a class="email" href="mailto:sverd.johnsen@googlemail.com" title="Sverd Johnsen <sverd.johnsen@googlemail.com>"> <span class="fn">Sverd Johnsen</span></a>
</span> changed
<a class="bz_bug_link
bz_status_NEW "
title="NEW - [SKL ] WARN_ON(!wm_changed) hit in the WM code with multiple pipes enabled"
href="https://bugs.freedesktop.org/show_bug.cgi?id=89055">bug 89055</a>
<br>
<table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
</tr>
<tr>
<td style="text-align:right;">CC</td>
<td>
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<td>sverd.johnsen@googlemail.com
</td>
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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [SKL ] WARN_ON(!wm_changed) hit in the WM code with multiple pipes enabled"
href="https://bugs.freedesktop.org/show_bug.cgi?id=89055#c15">Comment # 15</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [SKL ] WARN_ON(!wm_changed) hit in the WM code with multiple pipes enabled"
href="https://bugs.freedesktop.org/show_bug.cgi?id=89055">bug 89055</a>
from <span class="vcard"><a class="email" href="mailto:sverd.johnsen@googlemail.com" title="Sverd Johnsen <sverd.johnsen@googlemail.com>"> <span class="fn">Sverd Johnsen</span></a>
</span></b>
<pre>Looks like same thing here.
Intel(R) Core(TM) i5-6600K CPU @ 3.50GHz
Linux foobar 4.3.0-1-ARCH #1 SMP PREEMPT Mon Nov 2 16:52:35 CET 2015 x86_64
GNU/Linux
[ 4087.204525] ------------[ cut here ]------------
[ 4087.204554] WARNING: CPU: 0 PID: 414 at drivers/gpu/drm/i915/intel_pm.c:3668
skl_update_other_pipe_wm+0x1e7/0x1f0 [i915]()
[ 4087.204558] WARN_ON(!wm_changed)
[ 4087.204561] Modules linked in:
[ 4087.204565] nf_log_ipv6 nf_log_ipv4 nf_log_common nf_conntrack_ipv6
nf_defrag_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4 nft_ct nf_conntrack nft_log
nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_counter nft_meta
nft_hash nft_rbtree nf_tables_inet nf_tables_ipv6 nf_tables_ipv4 nf_tables
nfnetlink dm_crypt sha256_ssse3 sha256_generic hmac drbg ansi_cprng
algif_skcipher af_alg intel_rapl snd_hda_codec_hdmi dm_mod
snd_hda_codec_realtek snd_hda_codec_generic iosf_mbi x86_pkg_temp_thermal
intel_powerclamp coretemp kvm_intel kvm crct10dif_pclmul crc32_pclmul
crc32c_intel aesni_intel aes_x86_64 lrw gf128mul snd_hda_intel glue_helper
ablk_helper snd_hda_codec cryptd hci_uart snd_hda_core btbcm mousedev joydev
btqca snd_hwdep btintel snd_pcm bluetooth mxm_wmi input_leds led_class psmouse
pcspkr
[ 4087.204642] e1000e serio_raw snd_timer snd wmi ptp evdev pps_core rfkill
mac_hid thermal fan pinctrl_sunrisepoint pinctrl_intel tpm_infineon battery
tpm_tis mei_me mei intel_lpss_acpi intel_lpss acpi_pad tpm i2c_hid soundcore
shpchp i2c_i801 processor fjes acpi_als kfifo_buf industrialio sch_fq_codel
ip_tables x_tables ext4 crc16 mbcache jbd2 hid_generic usbhid hid sd_mod atkbd
libps2 ahci libahci libata xhci_pci xhci_hcd scsi_mod usbcore usb_common i8042
serio i915 video button intel_gtt i2c_algo_bit drm_kms_helper syscopyarea
sysfillrect sysimgblt fb_sys_fops drm
[ 4087.204718] CPU: 0 PID: 414 Comm: Xorg Tainted: G W
4.3.0-1-ARCH #1
[ 4087.204721] Hardware name: Gigabyte Technology Co., Ltd.
Z170X-UD3/Z170X-UD3-CF, BIOS F4 10/20/2015
[ 4087.204725] 0000000000000000 00000000ce8e1234 ffff88045e77f5f8
ffffffff812bbc59
[ 4087.204731] ffff88045e77f640 ffff88045e77f630 ffffffff81074f42
ffff88045db6b000
[ 4087.204737] ffff88045e77f784 ffff88045db68000 0000000000000000
ffff88045e77f6d0
[ 4087.204743] Call Trace:
[ 4087.204755] [<ffffffff812bbc59>] dump_stack+0x4b/0x72
[ 4087.204762] [<ffffffff81074f42>] warn_slowpath_common+0x82/0xc0
[ 4087.204768] [<ffffffff81074fdc>] warn_slowpath_fmt+0x5c/0x80
[ 4087.204786] [<ffffffffa00e5b37>] skl_update_other_pipe_wm+0x1e7/0x1f0
[i915]
[ 4087.204804] [<ffffffffa00e5d03>] skl_update_wm+0x1c3/0x740 [i915]
[ 4087.204830] [<ffffffffa012aa1b>] ? gen9_read32+0xfb/0x2e0 [i915]
[ 4087.204844] [<ffffffffa00db6dc>] ? i915_get_vblank_timestamp+0x5c/0x90
[i915]
[ 4087.204863] [<ffffffffa00ea1ce>] intel_update_watermarks+0x1e/0x30 [i915]
[ 4087.204888] [<ffffffffa0146fbd>] intel_atomic_commit+0x40d/0x13d0 [i915]
[ 4087.204901] [<ffffffffa00207a5>] ? drm_atomic_check_only+0x215/0x540 [drm]
[ 4087.204912] [<ffffffffa001fb12>] ? drm_atomic_get_crtc_state+0x32/0xd0
[drm]
[ 4087.204921] [<ffffffffa0020b07>] drm_atomic_commit+0x37/0x60 [drm]
[ 4087.204931] [<ffffffffa008f60f>] drm_atomic_helper_disable_plane+0xef/0x130
[drm_kms_helper]
[ 4087.204947] [<ffffffffa00106da>] __setplane_internal+0x23a/0x2f0 [drm]
[ 4087.204962] [<ffffffffa00108bb>] drm_mode_cursor_universal+0x12b/0x210
[drm]
[ 4087.204976] [<ffffffffa0010a21>] drm_mode_cursor_common+0x81/0x180 [drm]
[ 4087.204991] [<ffffffffa0014470>] drm_mode_cursor_ioctl+0x50/0x70 [drm]
[ 4087.205002] [<ffffffffa00055c8>] drm_ioctl+0x138/0x500 [drm]
[ 4087.205016] [<ffffffffa0014420>] ? drm_mode_setcrtc+0x4f0/0x4f0 [drm]
[ 4087.205023] [<ffffffff811d3f17>] ? __vfs_read+0x37/0x100
[ 4087.205031] [<ffffffff811e64d5>] do_vfs_ioctl+0x295/0x480
[ 4087.205038] [<ffffffff81081091>] ? __set_task_blocked+0x41/0xa0
[ 4087.205044] [<ffffffff811f0487>] ? __fget+0x77/0xb0
[ 4087.205050] [<ffffffff811e6739>] SyS_ioctl+0x79/0x90
[ 4087.205058] [<ffffffff8157db2e>] entry_SYSCALL_64_fastpath+0x12/0x71
[ 4087.205063] ---[ end trace a9564ae414c7316e ]---
# dmesg | grep -P -c '.*:3668 skl_update_other_pipe_wm'
25</pre>
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