FYI, we noticed the below changes on
git://people.freedesktop.org/~mlankhorst/linux rework-page-flip
commit e1eaca94bb1677ae1687589371da6557ac75ca35 ("drm/i915: Power refcount checking.")
<5>[ 21.459466] Key type id_legacy registered
<5>[ 30.011756] random: nonblocking pool is initialized
<4>[ 49.945197] ------------[ cut here ]------------
<4>[ 49.952010] WARNING: CPU: 0 PID: 583 at drivers/gpu/drm/i915/intel_display.c:13185 check_power_refcount+0x20e/0x340 [i915]()
<4>[ 49.967414] Refcount on domain TRANSCODER_EDP is 1, should be 0
<4>[ 49.974149] Modules linked in: rpcsec_gss_krb5 auth_rpcgss nfsv4 dns_resolver btrfs xor raid6_pq sg sd_mod snd_hda_codec_hdmi x86_pkg_temp_thermal coretemp kvm_intel kvm irqbypass crct10dif_pclmul snd_hda_intel crc32_pclmul crc32c_intel snd_hda_codec ppdev snd_hda_core snd_hwdep snd_pcm aesni_intel lrw gf128mul glue_helper snd_timer ablk_helper cryptd serio_raw pcspkr ahci libahci i915 drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops libata shpchp snd soundcore drm winbond_cir rc_core i2c_hid parport_pc sdhci_acpi video sdhci dw_dmac dw_dmac_core mmc_core parport i2c_designware_platform i2c_designware_core spi_pxa2xx_platform acpi_pad
<4>[ 50.039801] CPU: 0 PID: 583 Comm: kms_flip Not tainted 4.4.0-rc6-00750-ge1eaca9 #1
<4>[ 50.048391] Hardware name: Intel Corporation Broadwell Client platform/WhiteTip Mountain 1, BIOS BDW-E1R1.86C.0120.R00.1504020241 04/02/2015
<47>
[ 50.048800] systemd-journald[123]: Compressed data object 650 -> 484
<4>[ 50.069910] ffffffffa03078c8 ffff88007a723a90 ffffffff81410e22 ffff88007a723ad8
<4>[ 50.078345] ffff88007a723ac8 ffffffff81078cc6 ffff88007a723b58 ffff880136c00000
<4>[ 50.086778] 0000000000000009 0000000008000209 0000000000000001 ffff88007a723b28
<4>[ 50.095215] Call Trace:
<4>[ 50.097994] [<ffffffff81410e22>] dump_stack+0x4b/0x69
<4>[ 50.103832] [<ffffffff81078cc6>] warn_slowpath_common+0x86/0xc0
<4>[ 50.110649] [<ffffffff81078d4c>] warn_slowpath_fmt+0x4c/0x50
<4>[ 50.117190] [<ffffffffa02a1c9e>] check_power_refcount+0x20e/0x340 [i915]
<4>[ 50.124912] [<ffffffffa02a29e7>] intel_atomic_commit+0xc17/0x1420 [i915]
<4>[ 50.132621] [<ffffffff810bc1c0>] ? wait_woken+0xb0/0xb0
<4>[ 50.138666] [<ffffffffa01b3c27>] drm_atomic_commit+0x37/0x60 [drm]
<4>[ 50.145787] [<ffffffffa0148147>] drm_atomic_helper_set_config+0x77/0xb0 [drm_kms_helper]
<4>[ 50.155068] [<ffffffffa01a38f2>] drm_mode_set_config_internal+0x62/0x100 [drm]
<4>[ 50.163374] [<ffffffffa01a7b69>] drm_mode_setcrtc+0x189/0x4f0 [drm]
<4>[ 50.170591] [<ffffffffa0199862>] drm_ioctl+0x142/0x590 [drm]
<4>[ 50.177112] [<ffffffff81202f05>] ? file_update_time+0xa5/0xf0
<4>[ 50.183743] [<ffffffffa01a79e0>] ? drm_mode_setplane+0x1b0/0x1b0 [drm]
<4>[ 50.191252] [<ffffffff813a85dc>] ? selinux_file_ioctl+0xfc/0x1c0
<4>[ 50.198169] [<ffffffff811fbe61>] do_vfs_ioctl+0x301/0x560
<4>[ 50.204393] [<ffffffff813a1203>] ? security_file_ioctl+0x43/0x60
<4>[ 50.211310] [<ffffffff811fc139>] SyS_ioctl+0x79/0x90
<4>[ 50.217046] [<ffffffff81003c15>] ? syscall_return_slowpath+0xf5/0x160
<4>[ 50.224454] [<ffffffff818c732e>] entry_SYSCALL_64_fastpath+0x12/0x71
<4>[ 50.231763] ---[ end trace d1359a8bc09246d7 ]---
<4>[ 75.526359] ------------[ cut here ]------------
To reproduce:
git clone git://git.kernel.org/pub/scm/linux/kernel/git/wfg/lkp-tests.git
cd lkp-tests
bin/lkp install job.yaml # job file is attached in this email
bin/lkp run job.yaml
Thanks,
Kernel Test Robot