[Bug 96214] [BAT SKL] WARN Unclaimed register detected (0x65f10) / gem_exec_suspend at basic-s4

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=96214

--- Comment #5 from Andrzej Pronobis <a.pronobis at gmail.com> ---
I'm seeing the same thing on Dell Precision 5510 with kernels 4.6.3 and 4.7rc6.


[  +0.178272] ------------[ cut here ]------------
[  +0.000019] WARNING: CPU: 2 PID: 13812 at
drivers/gpu/drm/i915/intel_uncore.c:804 __unclaimed_reg_debug+0x63/0x70 [i915]
[  +0.000001] Unclaimed register detected after reading register 0x65f10
[  +0.000000] Modules linked in: ctr ccm cpufreq_stats uhid rfcomm
vmw_vsock_vmci_transport vsock vmw_vmci uvcvideo videobuf2_vmalloc
videobuf2_memops videobuf2_v4l2 videobuf2_core videodev media bnep bbswitch(OE)
btusb btrtl binfmt_misc nls_utf8 nls_cp437 arc4 vfat fuse nvram msr intel_rapl
x86_pkg_temp_thermal intel_powerclamp fat snd_hda_codec_hdmi
snd_hda_codec_realtek snd_hda_codec_generic mxm_wmi dell_wmi sparse_keymap
iwlmvm mac80211 kvm_intel kvm snd_hda_intel iwlwifi snd_hda_codec dell_laptop
dell_smbios snd_hda_core dcdbas cfg80211 dell_smm_hwmon irqbypass snd_hwdep
crct10dif_pclmul rtsx_pci_ms snd_pcm memstick crc32_pclmul ghash_clmulni_intel
snd_seq_midi snd_seq_midi_event hmac snd_rawmidi drbg ansi_cprng snd_seq
snd_seq_device snd_timer aesni_intel aes_x86_64 lrw snd gf128mul efi_pstore
[  +0.000023]  glue_helper hci_uart ablk_helper idma64 btbcm virt_dma
ie31200_edac cryptd btqca mei_me joydev btintel intel_cstate
processor_thermal_device soundcore efivars serio_raw intel_rapl_perf shpchp mei
edac_core intel_soc_dts_iosf intel_lpss_pci bluetooth rfkill acpi_als
int3403_thermal dell_smo8800 wmi kfifo_buf int3402_thermal intel_lpss_acpi
int3400_thermal intel_lpss industrialio int340x_thermal_zone acpi_thermal_rel
acpi_pad tpm_tis evdev battery ac tpm coretemp parport_pc ppdev lp parport
efivarfs autofs4 ext4 crc16 jbd2 mbcache rtsx_pci_sdmmc mmc_core i915
crc32c_intel psmouse ahci libahci i2c_algo_bit xhci_pci drm_kms_helper nvme
libata xhci_hcd rtsx_pci nvme_core drm usbcore scsi_mod mfd_core usb_common fan
thermal i2c_hid hid video button fjes
[  +0.000023] CPU: 2 PID: 13812 Comm: tlp Tainted: G     U     OE  
4.7.0-rc6-custom+ #1
[  +0.000001] Hardware name: Dell Inc. Precision 5510/08R8KJ, BIOS 01.02.10
06/30/2016
[  +0.000001]  0000000000000086 0000000084b0eaf7 ffffffff81320f35
ffff8807add67b20
[  +0.000001]  0000000000000000 ffffffff810788ae 0000000000065f10
ffff8807add67b78
[  +0.000001]  0000000000000001 0000000000000001 0000000000000000
ffff8808926c0000
[  +0.000002] Call Trace:
[  +0.000003]  [<ffffffff81320f35>] ? dump_stack+0x5c/0x77
[  +0.000002]  [<ffffffff810788ae>] ? __warn+0xbe/0xe0
[  +0.000001]  [<ffffffff8107892f>] ? warn_slowpath_fmt+0x5f/0x80
[  +0.000011]  [<ffffffffc038bd73>] ? __unclaimed_reg_debug+0x63/0x70 [i915]
[  +0.000010]  [<ffffffffc0391d56>] ? gen9_read32+0x346/0x380 [i915]
[  +0.000011]  [<ffffffffc0398163>] ?
i915_audio_component_codec_wake_override+0x33/0xa0 [i915]
[  +0.000004]  [<ffffffffc0548869>] ? snd_hdac_set_codec_wakeup+0x39/0x90
[snd_hda_core]
[  +0.000002]  [<ffffffffc0658a02>] ? azx_runtime_resume+0x172/0x190
[snd_hda_intel]
[  +0.000002]  [<ffffffff8136f8a8>] ? pci_pm_runtime_resume+0x78/0xa0
[  +0.000001]  [<ffffffff814611de>] ? __rpm_callback+0x2e/0x70
[  +0.000002]  [<ffffffff8136f830>] ? pci_restore_standard_config+0x40/0x40
[  +0.000001]  [<ffffffff8146123f>] ? rpm_callback+0x1f/0x70
[  +0.000001]  [<ffffffff8136f830>] ? pci_restore_standard_config+0x40/0x40
[  +0.000001]  [<ffffffff81461c6e>] ? rpm_resume+0x48e/0x690
[  +0.000002]  [<ffffffff8120d6ea>] ? dput+0x2a/0x240
[  +0.000001]  [<ffffffff81461ac0>] ? rpm_resume+0x2e0/0x690
[  +0.000001]  [<ffffffff8146102a>] ? rpm_check_suspend_allowed+0x6a/0xb0
[  +0.000001]  [<ffffffff8146270e>] ? pm_runtime_forbid+0x3e/0x60
[  +0.000004]  [<ffffffffc084457f>] ? snd_hda_set_power_save+0x4f/0xc0
[snd_hda_codec]
[  +0.000001]  [<ffffffffc0658fab>] ? param_set_xint+0x7b/0x90 [snd_hda_intel]
[  +0.000002]  [<ffffffff8109632c>] ? param_attr_store+0x5c/0xc0
[  +0.000001]  [<ffffffff81095b2a>] ? module_attr_store+0x1a/0x30
[  +0.000002]  [<ffffffff8127178a>] ? kernfs_fop_write+0x10a/0x190
[  +0.000001]  [<ffffffff811f5a13>] ? __vfs_write+0x33/0x160
[  +0.000002]  [<ffffffff8121471e>] ? __fd_install+0x2e/0xe0
[  +0.000000]  [<ffffffff81214583>] ? __alloc_fd+0x43/0x180
[  +0.000002]  [<ffffffff81291b08>] ? security_file_permission+0x38/0xb0
[  +0.000001]  [<ffffffff811f6003>] ? vfs_write+0xb3/0x1a0
[  +0.000001]  [<ffffffff811f72c2>] ? SyS_write+0x52/0xc0
[  +0.000003]  [<ffffffff815eb976>] ? entry_SYSCALL_64_fastpath+0x1e/0xa8
[  +0.000001] ---[ end trace d51d4cafcb2f68de ]---

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