[Bug 91960] [i915] kernel warning hsw_unclaimed_reg_debug intel_uncore.c:619

Sat Aug 13 11:14:51 UTC 2016

https://bugs.freedesktop.org/show_bug.cgi?id=91960

--- Comment #6 from Inalbyss <mito150 at gmail.com> ---
Another trace:

-Kernel: 4.6.0-1-amd64
-Linux Distro: Debian Sid
-Machine: Lenovo Thinkpad E460

-Trace:

[  669.371854] ------------[ cut here ]------------
[  669.371894] WARNING: CPU: 2 PID: 5543 at
/build/linux-aOJbQa/linux-4.6.4/drivers/gpu/drm/i915/intel_uncore.c:649
__unclaimed_reg_debug+0x77/0x80 [i915]
[  669.371896] Unclaimed register detected after reading register 0x65f10
[  669.371898] Modules linked in: fuse(E) hmac(E) drbg(E) ansi_cprng(E) ctr(E)
ccm(E) cpufreq_stats(E) cpufreq_conservative(E) cpufreq_powersave(E)
cpufreq_userspace(E) bnep(E) toshiba_acpi(E) sparse_keymap(E) toshiba_haps(E)
hp_accel(E) lis3lv02d(E) input_polldev(E) nls_utf8(E) nls_cp437(E) vfat(E)
fat(E) uvcvideo(E) videobuf2_vmalloc(E) videobuf2_memops(E) videobuf2_v4l2(E)
videobuf2_core(E) videodev(E) media(E) snd_hda_codec_hdmi(E)
snd_hda_codec_conexant(E) snd_hda_codec_generic(E) btusb(E) btrtl(E) btbcm(E)
btintel(E) joydev(E) bluetooth(E) intel_rapl(E) x86_pkg_temp_thermal(E)
intel_powerclamp(E) coretemp(E) kvm_intel(E) amdkfd(E) rtsx_pci_sdmmc(E)
rtsx_pci_ms(E) memstick(E) mmc_core(E) kvm(E) amdgpu(E) arc4(E) iTCO_wdt(E)
iwlmvm(E) iTCO_vendor_support(E) i915(E) irqbypass(E) mac80211(E) iwlwifi(E)
[  669.371937]  snd_soc_skl(E) snd_soc_skl_ipc(E) snd_soc_sst_ipc(E)
snd_soc_sst_dsp(E) crct10dif_pclmul(E) crc32_pclmul(E) snd_hda_ext_core(E)
cfg80211(E) snd_soc_sst_match(E) ghash_clmulni_intel(E) e1000e(E)
snd_soc_core(E) efi_pstore(E) rtsx_pci(E) ttm(E) psmouse(E) mei_me(E)
mfd_core(E) snd_compress(E) dw_dmac_core(E) pcspkr(E) efivars(E)
thinkpad_acpi(E) snd_hda_intel(E) nvram(E) sg(E) wmi(E) rfkill(E)
snd_hda_codec(E) drm_kms_helper(E) ptp(E) battery(E) ac(E) drm(E) fjes(E)
snd_hda_core(E) snd_hwdep(E) snd_pcm(E) video(E) xhci_pci(E) xhci_hcd(E)
usbcore(E) mei(E) pps_core(E) i2c_algo_bit(E) snd_timer(E) snd(E) soundcore(E)
usb_common(E) button(E) tpm_crb(E) intel_pch_thermal(E) i2c_i801(E) shpchp(E)
tpm_tis(E) processor(E) tpm(E) parport_pc(E) ppdev(E) lp(E) sunrpc(E)
parport(E) efivarfs(E) autofs4(E)
[  669.371979]  ext4(E) ecb(E) crc16(E) jbd2(E) crc32c_generic(E) mbcache(E)
sd_mod(E) crc32c_intel(E) aesni_intel(E) aes_x86_64(E) glue_helper(E) lrw(E)
gf128mul(E) ablk_helper(E) cryptd(E) evdev(E) serio_raw(E) ahci(E) libahci(E)
libata(E) scsi_mod(E) thermal(E)
[  669.371998] CPU: 2 PID: 5543 Comm: alsa-sink-CX207 Tainted: G           OE  
4.6.0-1-amd64 #1 Debian 4.6.4-1
[  669.371999] Hardware name: LENOVO 20ETCTO1WW/20ETCTO1WW, BIOS R00ET45W (1.20
) 06/12/2016
[  669.372001]  0000000000000086 0000000088537adf ffffffff81311505
ffff880222b878e0
[  669.372005]  0000000000000000 ffffffff8107a50e 0000000000065f10
ffff880222b87938
[  669.372008]  0000000000000001 0000000000000000 0000000000000001
0000000000000202
[  669.372011] Call Trace:
[  669.372019]  [<ffffffff81311505>] ? dump_stack+0x5c/0x77
[  669.372024]  [<ffffffff8107a50e>] ? __warn+0xbe/0xe0
[  669.372028]  [<ffffffff8107a58f>] ? warn_slowpath_fmt+0x5f/0x80
[  669.372033]  [<ffffffff81353925>] ?
pci_bus_write_config_word.part.7+0x55/0x60
[  669.372064]  [<ffffffffc0795427>] ? __unclaimed_reg_debug+0x77/0x80 [i915]
[  669.372094]  [<ffffffffc079b086>] ? gen9_read32+0x316/0x340 [i915]
[  669.372098]  [<ffffffff81353925>] ?
pci_bus_write_config_word.part.7+0x55/0x60
[  669.372131]  [<ffffffffc07a0bc3>] ?
i915_audio_component_codec_wake_override+0x33/0xa0 [i915]
[  669.372141]  [<ffffffffc0383759>] ? snd_hdac_set_codec_wakeup+0x39/0x90
[snd_hda_core]
[  669.372146]  [<ffffffffc0479a02>] ? azx_runtime_resume+0x172/0x190
[snd_hda_intel]
[  669.372152]  [<ffffffff8135e048>] ? pci_pm_runtime_resume+0x78/0xa0
[  669.372157]  [<ffffffff8144999e>] ? __rpm_callback+0x2e/0x70
[  669.372161]  [<ffffffff8135dfd0>] ? pci_restore_standard_config+0x40/0x40
[  669.372164]  [<ffffffff814499ff>] ? rpm_callback+0x1f/0x70
[  669.372168]  [<ffffffff8135dfd0>] ? pci_restore_standard_config+0x40/0x40
[  669.372171]  [<ffffffff8144a17e>] ? rpm_resume+0x48e/0x690
[  669.372175]  [<ffffffff811d254a>] ? __kmalloc+0xda/0x4b0
[  669.372178]  [<ffffffff81449fd0>] ? rpm_resume+0x2e0/0x690
[  669.372189]  [<ffffffffc02f7055>] ? snd_pcm_hw_rule_add+0x175/0x1d0
[snd_pcm]
[  669.372192]  [<ffffffff8144abb7>] ? __pm_runtime_resume+0x47/0x70
[  669.372207]  [<ffffffffc046169b>] ? azx_pcm_open+0x1cb/0x360 [snd_hda_codec]
[  669.372216]  [<ffffffffc02f6369>] ? snd_pcm_open_substream+0x79/0x130
[snd_pcm]
[  669.372224]  [<ffffffffc02f64de>] ? snd_pcm_open+0xbe/0x250 [snd_pcm]
[  669.372227]  [<ffffffff811fc522>] ? lookup_fast+0x52/0x2f0
[  669.372232]  [<ffffffff810a3790>] ? wake_up_q+0x60/0x60
[  669.372241]  [<ffffffffc02f671d>] ? snd_pcm_playback_open+0x3d/0x70
[snd_pcm]
[  669.372247]  [<ffffffff811f5b6e>] ? chrdev_open+0xbe/0x190
[  669.372250]  [<ffffffff811f5ab0>] ? cdev_put+0x20/0x20
[  669.372255]  [<ffffffff811ee9d0>] ? do_dentry_open+0x1f0/0x2d0
[  669.372259]  [<ffffffff811ff5e7>] ? path_openat+0x1b7/0x1400
[  669.372264]  [<ffffffff81233f15>] ? inotify_handle_event+0xb5/0x150
[  669.372270]  [<ffffffff812019e1>] ? do_filp_open+0x91/0x100
[  669.372275]  [<ffffffff811efe56>] ? do_sys_open+0x126/0x210
[  669.372282]  [<ffffffff815c6776>] ? system_call_fast_compare_end+0xc/0x96
[  669.372287] ---[ end trace 5756447a097ea66f ]---

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