I'm forwarding to this list hoping that it's closer to the cause of the
issue. I've included the previous discussion with the RTC maintainers
for reference (see the end of this message).
I have confirmed that the issue still exists in the 4.16 rc1 kernel, and
I can provide any updated details that might be required.
Thanks in advance. Please feel free to contact me if there are any
other questions.
-Peter Milley
-------- Forwarded Message --------
Subject: [BUG]: Error accessing realtime clock
Date: Tue, 13 Feb 2018 10:56:32 -0500
From: Peter Milley <pbmilley@xxxxxxxxx>
Reply-To: pbmilley@xxxxxxxxx
To: Alessandro Zummo <a.zummo@xxxxxxxxxxxx>, Alexandre Belloni
<alexandre.belloni@xxxxxxxxxxxxxxxxxx>
CC: linux-rtc@xxxxxxxxxxxxxxx
I just verified that this problem is still present in the latest RC
kernel - 4.16.0-041600rc1-generic.
On Wed, 2018-01-24 at 19:12 -0500, Peter Milley wrote:
> [1.] One line summary of the problem:
> Error accessing realtime clock
>
> [2.] Full description of the problem/report:
> I was running a script previously that uses rtcwake which has since
> stopped working. The script automatically hibernates my laptop after
> a
> set period of time in sleep mode, and was working perfectly in kernel
> 4.10.0-37.
>
> In the process of troubleshooting, I discovered that the problem was
> with rtcwake which is complaining about /dev/rtc0 missing.
>
> Here is output from a sample rtcwake command:
>
> peter@haven:~$ rtcwake -m no -s 1300
> rtcwake: assuming RTC uses UTC ...
> rtcwake: /dev/rtc0: unable to find device: No such file or directory
>
> I verified that in fact, that directory is missing.
>
> I get the following RTC messages in dmesg when I boot the current
> kernel:
>
> peter@haven:~$ dmesg | grep -i rtc
> [ 0.089393] RTC time: 17:03:55, date: 11/01/17
> [ 1.238784] rtc_cmos 00:01: RTC can wake from S4
> [ 1.238794] rtc_cmos: probe of 00:01 failed with error -16
> [ 1.295459] hctosys: unable to open rtc device (rtc0)
>
> In researching the error, I found some suggestions to get further
> information with timedatectl and hwclock, so here are the results
> from
> those commands as well.
>
> Output of timedatectl:
>
> peter@haven:~$ timedatectl
> Local time: Fri 2017-10-27 19:06:26 EDT
> Universal time: Fri 2017-10-27 23:06:26 UTC
> RTC time: n/a
> Time zone: America/New_York (EDT, -0400)
> Network time on: yes
> NTP synchronized: yes
> RTC in local TZ: no
>
> Output of hwclock --debug:
>
> peter@haven:~$ sudo hwclock --debug
> [sudo] password for peter:
> hwclock from util-linux 2.30.1
> Trying to open: /dev/rtc0
> Trying to open: /dev/rtc
> Trying to open: /dev/misc/rtc
> No usable clock interface found.
> hwclock: Cannot access the Hardware Clock via any known method.
>
> More evidence to suggest this is a kernel bug: I live-booted a copy
> of
> Antergos Linux, which was using the Arch kernel 4.14.12-1-ARCH and it
> exhibited the same problem with the real time clock as Ubuntu 17.10.
>
> [3.] Keywords (i.e., modules, networking, kernel):
>
> [4.] Kernel version (from /proc/version):
> Linux version 4.15.0-041500rc9-generic (kernel@tangerine) (gcc
> version
> 7.2.0 (Ubuntu 7.2.0-8ubuntu3)) #201801212130 SMP Mon Jan 22 02:31:37
> UTC 2018
>
> [5.] Output of Oops.. message:
> No OOPs message.
>
> [6.] A small shell script or example program:
>
> [7.] Environment:
> Description: Ubuntu 17.10
> Release: 17.10
>
> [7.1.] Software (add the output of the ver_linux script here):
> Linux haven 4.15.0-041500rc9-generic #201801212130 SMP Mon Jan 22
> 02:31:37 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
>
> GNU Make 4.1
> Binutils 2.29.1
> Util-linux 2.30.1
> Mount 2.30.1
> Module-init-tools 24
> E2fsprogs 1.43.5
> Pcmciautils 018
> PPP 2.4.7
> Linux C Library 2.26
> Dynamic linker (ldd) 2.26
> Linux C++ Library 6.0.24
> Procps 3.3.12
> Net-tools 2.10
> Kbd 2.0.3
> Console-tools 2.0.3
> Sh-utils 8.26
> Udev 234
> Wireless-tools 30
> Modules Loaded aesni_intel aes_x86_64 ahci arc4 autofs4
> binfmt_misc bluetooth bnep btbcm btintel btrtl btusb ccm cfg80211
> cifs
> coretemp crc32_pclmul crct10dif_pclmul cryptd crypto_simd drm
> drm_kms_helper ecdh_generic fb_sys_fops fscache ghash_clmulni_intel
> glue_helper i2c_algo_bit i915 ideapad_laptop input_leds intel_cstate
> intel_powerclamp intel_rapl intel_rapl_perf ip6table_filter
> ip6_tables
> ip6t_REJECT ip6t_rt iptable_filter ip_tables ipt_REJECT irqbypass
> iwlmvm iwlwifi joydev kvm kvm_intel libahci libcrc32c lp lpc_ich
> mac80211 mac_hid md4 media mei mei_me memstick mii nf_conntrack
> nf_conntrack_broadcast nf_conntrack_ftp nf_conntrack_ipv4
> nf_conntrack_ipv6 nf_conntrack_netbios_ns nf_defrag_ipv4
> nf_defrag_ipv6
> nf_log_common nf_log_ipv4 nf_log_ipv6 nf_nat nf_nat_ftp
> nf_reject_ipv4
> nf_reject_ipv6 nls_iso8859_1 nls_utf8 parport parport_pc pcbc ppdev
> psmouse r8169 rfcomm rtsx_usb rtsx_usb_ms rtsx_usb_sdmmc serio_raw
> shpchp snd snd_hda_codec snd_hda_codec_conexant snd_hda_codec_generic
> snd_hda_codec_hdmi snd_hda_core snd_hda_intel snd_hwdep snd_pcm
> snd_rawmidi snd_seq snd_seq_device snd_seq_midi snd_seq_midi_event
> snd_timer soundcore sparse_keymap syscopyarea sysfillrect sysimgblt
> uvcvideo video videobuf2_core videobuf2_memops videobuf2_v4l2
> videobuf2_vmalloc videodev vmw_vmci vmw_vsock_vmci_transport vsock
> wmi
> x86_pkg_temp_thermal x_tables xt_addrtype xt_conntrack xt_hl xt_limit
> xt_LOG xt_tcpudp
>
> [7.2.] Processor information (from /proc/cpuinfo):
> processor : 0
> vendor_id : GenuineIntel
> cpu family : 6
> model : 69
> model name : Intel(R) Core(TM) i7-4510U CPU @ 2.00GHz
> stepping : 1
> microcode : 0x20
> cpu MHz : 798.226
> cache size : 4096 KB
> physical id : 0
> siblings : 4
> core id : 0
> cpu cores : 2
> apicid : 0
> initial apicid : 0
> fpu : yes
> fpu_exception : yes
> cpuid level : 13
> wp : yes
> flags : fpu vme de pse tsc msr pae mce cx8 apic sep
> mtrr
> pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm
> pbe
> syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts
> rep_good nopl xtopology nonstop_tsc cpuid aperfmperf pni pclmulqdq
> dtes64 monitor ds_cpl vmx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid
> sse4_1 sse4_2 movbe popcnt tsc_deadline_timer aes xsave avx f16c
> rdrand
> lahf_lm abm cpuid_fault epb invpcid_single pti retpoline tpr_shadow
> vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2
> erms
> invpcid xsaveopt dtherm ida arat pln pts
> bugs : cpu_meltdown spectre_v1 spectre_v2
> bogomips : 5188.44
> clflush size : 64
> cache_alignment : 64
> address sizes : 39 bits physical, 48 bits virtual
> power management:
>
> processor : 1
> vendor_id : GenuineIntel
> cpu family : 6
> model : 69
> model name : Intel(R) Core(TM) i7-4510U CPU @ 2.00GHz
> stepping : 1
> microcode : 0x20
> cpu MHz : 798.571
> cache size : 4096 KB
> physical id : 0
> siblings : 4
> core id : 0
> cpu cores : 2
> apicid : 1
> initial apicid : 1
> fpu : yes
> fpu_exception : yes
> cpuid level : 13
> wp : yes
> flags : fpu vme de pse tsc msr pae mce cx8 apic sep
> mtrr
> pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm
> pbe
> syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts
> rep_good nopl xtopology nonstop_tsc cpuid aperfmperf pni pclmulqdq
> dtes64 monitor ds_cpl vmx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid
> sse4_1 sse4_2 movbe popcnt tsc_deadline_timer aes xsave avx f16c
> rdrand
> lahf_lm abm cpuid_fault epb invpcid_single pti retpoline tpr_shadow
> vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2
> erms
> invpcid xsaveopt dtherm ida arat pln pts
> bugs : cpu_meltdown spectre_v1 spectre_v2
> bogomips : 5188.44
> clflush size : 64
> cache_alignment : 64
> address sizes : 39 bits physical, 48 bits virtual
> power management:
>
> processor : 2
> vendor_id : GenuineIntel
> cpu family : 6
> model : 69
> model name : Intel(R) Core(TM) i7-4510U CPU @ 2.00GHz
> stepping : 1
> microcode : 0x20
> cpu MHz : 798.247
> cache size : 4096 KB
> physical id : 0
> siblings : 4
> core id : 1
> cpu cores : 2
> apicid : 2
> initial apicid : 2
> fpu : yes
> fpu_exception : yes
> cpuid level : 13
> wp : yes
> flags : fpu vme de pse tsc msr pae mce cx8 apic sep
> mtrr
> pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm
> pbe
> syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts
> rep_good nopl xtopology nonstop_tsc cpuid aperfmperf pni pclmulqdq
> dtes64 monitor ds_cpl vmx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid
> sse4_1 sse4_2 movbe popcnt tsc_deadline_timer aes xsave avx f16c
> rdrand
> lahf_lm abm cpuid_fault epb invpcid_single pti retpoline tpr_shadow
> vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2
> erms
> invpcid xsaveopt dtherm ida arat pln pts
> bugs : cpu_meltdown spectre_v1 spectre_v2
> bogomips : 5188.44
> clflush size : 64
> cache_alignment : 64
> address sizes : 39 bits physical, 48 bits virtual
> power management:
>
> processor : 3
> vendor_id : GenuineIntel
> cpu family : 6
> model : 69
> model name : Intel(R) Core(TM) i7-4510U CPU @ 2.00GHz
> stepping : 1
> microcode : 0x20
> cpu MHz : 798.326
> cache size : 4096 KB
> physical id : 0
> siblings : 4
> core id : 1
> cpu cores : 2
> apicid : 3
> initial apicid : 3
> fpu : yes
> fpu_exception : yes
> cpuid level : 13
> wp : yes
> flags : fpu vme de pse tsc msr pae mce cx8 apic sep
> mtrr
> pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm
> pbe
> syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts
> rep_good nopl xtopology nonstop_tsc cpuid aperfmperf pni pclmulqdq
> dtes64 monitor ds_cpl vmx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid
> sse4_1 sse4_2 movbe popcnt tsc_deadline_timer aes xsave avx f16c
> rdrand
> lahf_lm abm cpuid_fault epb invpcid_single pti retpoline tpr_shadow
> vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2
> erms
> invpcid xsaveopt dtherm ida arat pln pts
> bugs : cpu_meltdown spectre_v1 spectre_v2
> bogomips : 5188.44
> clflush size : 64
> cache_alignment : 64
> address sizes : 39 bits physical, 48 bits virtual
> power management:
>
> [7.3.] Module information (from /proc/modules):
> rfcomm 77824 2 - Live 0xffffffffc0f26000
> vmw_vsock_vmci_transport 28672 0 - Live 0xffffffffc0ef0000
> vsock 36864 1 vmw_vsock_vmci_transport,[permanent], Live
> 0xffffffffc0ee1000
> vmw_vmci 69632 1 vmw_vsock_vmci_transport, Live 0xffffffffc0ec8000
> md4 16384 0 - Live 0xffffffffc0ec0000
> nls_utf8 16384 1 - Live 0xffffffffc0e07000
> cifs 720896 2 - Live 0xffffffffc0e0f000
> fscache 61440 1 cifs, Live 0xffffffffc0df7000
> ccm 20480 6 - Live 0xffffffffc0deb000
> bnep 20480 2 - Live 0xffffffffc0d06000
> binfmt_misc 20480 1 - Live 0xffffffffc0cf3000
> nls_iso8859_1 16384 1 - Live 0xffffffffc0a89000
> intel_rapl 20480 0 - Live 0xffffffffc0d2a000
> x86_pkg_temp_thermal 16384 0 - Live 0xffffffffc0d1a000
> intel_powerclamp 16384 0 - Live 0xffffffffc0a84000
> snd_hda_codec_conexant 24576 1 - Live 0xffffffffc0be2000
> snd_hda_codec_hdmi 49152 1 - Live 0xffffffffc0cf9000
> snd_hda_codec_generic 73728 1 snd_hda_codec_conexant, Live
> 0xffffffffc0ce0000
> coretemp 16384 0 - Live 0xffffffffc0af9000
> snd_hda_intel 40960 8 - Live 0xffffffffc0dba000
> kvm_intel 204800 0 - Live 0xffffffffc0d42000
> snd_hda_codec 126976 4
> snd_hda_codec_conexant,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_h
> da
> _intel, Live 0xffffffffc0f4f000
> kvm 589824 1 kvm_intel, Live 0xffffffffc0c4b000
> irqbypass 16384 1 kvm, Live 0xffffffffc0bdd000
> crct10dif_pclmul 16384 0 - Live 0xffffffffc0bd8000
> crc32_pclmul 16384 0 - Live 0xffffffffc0a7f000
> uvcvideo 86016 0 - Live 0xffffffffc0ae3000
> videobuf2_vmalloc 16384 1 uvcvideo, Live 0xffffffffc0ade000
> videobuf2_memops 16384 1 videobuf2_vmalloc, Live 0xffffffffc0a2f000
> videobuf2_v4l2 24576 1 uvcvideo, Live 0xffffffffc0a9b000
> videobuf2_core 40960 2 uvcvideo,videobuf2_v4l2, Live
> 0xffffffffc0a90000
> videodev 176128 3 uvcvideo,videobuf2_v4l2,videobuf2_core, Live
> 0xffffffffc0ab2000
> rtsx_usb_ms 20480 0 - Live 0xffffffffc0a34000
> media 40960 2 uvcvideo,videodev, Live 0xffffffffc0a24000
> memstick 16384 1 rtsx_usb_ms, Live 0xffffffffc0a1b000
> snd_hda_core 81920 5
> snd_hda_codec_conexant,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_h
> da
> _intel,snd_hda_codec, Live 0xffffffffc0a6a000
> ghash_clmulni_intel 16384 0 - Live 0xffffffffc0a16000
> arc4 16384 2 - Live 0xffffffffc0a11000
> ip6t_REJECT 16384 1 - Live 0xffffffffc0a0c000
> nf_reject_ipv6 16384 1 ip6t_REJECT, Live 0xffffffffc0bc3000
> pcbc 16384 0 - Live 0xffffffffc0bbe000
> btusb 45056 0 - Live 0xffffffffc0bcc000
> snd_hwdep 20480 1 snd_hda_codec, Live 0xffffffffc0aa3000
> iwlmvm 364544 0 - Live 0xffffffffc0bec000
> mac80211 778240 1 iwlmvm, Live 0xffffffffc0aff000
> btrtl 16384 1 btusb, Live 0xffffffffc0a02000
> aesni_intel 188416 4 - Live 0xffffffffc0a3b000
> btbcm 16384 1 btusb, Live 0xffffffffc0a07000
> btintel 16384 1 btusb, Live 0xffffffffc09fd000
> nf_log_ipv6 16384 10 - Live 0xffffffffc0944000
> snd_pcm 98304 4
> snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hda_core, Live
> 0xffffffffc09e4000
> aes_x86_64 20480 1 aesni_intel, Live 0xffffffffc0aac000
> bluetooth 544768 31 rfcomm,bnep,btusb,btrtl,btbcm,btintel, Live
> 0xffffffffc095e000
> crypto_simd 16384 1 aesni_intel, Live 0xffffffffc0959000
> glue_helper 16384 1 aesni_intel, Live 0xffffffffc0954000
> cryptd 24576 3 ghash_clmulni_intel,aesni_intel,crypto_simd, Live
> 0xffffffffc0949000
> intel_cstate 20480 0 - Live 0xffffffffc08e7000
> ecdh_generic 24576 1 bluetooth, Live 0xffffffffc08e0000
> intel_rapl_perf 16384 0 - Live 0xffffffffc08b8000
> ideapad_laptop 32768 0 - Live 0xffffffffc093b000
> joydev 20480 0 - Live 0xffffffffc08da000
> input_leds 16384 0 - Live 0xffffffffc08c2000
> snd_seq_midi 16384 0 - Live 0xffffffffc07e1000
> snd_seq_midi_event 16384 1 snd_seq_midi, Live 0xffffffffc0804000
> sparse_keymap 16384 1 ideapad_laptop, Live 0xffffffffc07e6000
> iwlwifi 278528 1 iwlmvm, Live 0xffffffffc08f6000
> xt_hl 16384 22 - Live 0xffffffffc08bd000
> snd_rawmidi 32768 1 snd_seq_midi, Live 0xffffffffc08ed000
> wmi 24576 1 ideapad_laptop, Live 0xffffffffc07f5000
> snd_seq 65536 2 snd_seq_midi,snd_seq_midi_event, Live
> 0xffffffffc08c9000
> snd_seq_device 16384 3 snd_seq_midi,snd_rawmidi,snd_seq, Live
> 0xffffffffc07ff000
> snd_timer 32768 2 snd_pcm,snd_seq, Live 0xffffffffc07d8000
> ip6t_rt 16384 3 - Live 0xffffffffc07c2000
> cfg80211 622592 3 iwlmvm,mac80211,iwlwifi, Live 0xffffffffc081f000
> snd 81920 27
> snd_hda_codec_conexant,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_h
> da
> _intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_rawmidi,snd_seq,snd_seq_de
> vi
> ce,snd_timer, Live 0xffffffffc080a000
> serio_raw 16384 0 - Live 0xffffffffc07b2000
> shpchp 36864 0 - Live 0xffffffffc07eb000
> soundcore 16384 1 snd, Live 0xffffffffc07d3000
> mei_me 40960 0 - Live 0xffffffffc07c8000
> lpc_ich 24576 0 - Live 0xffffffffc07bb000
> mei 90112 1 mei_me, Live 0xffffffffc079b000
> mac_hid 16384 0 - Live 0xffffffffc0796000
> nf_conntrack_ipv6 20480 11 - Live 0xffffffffc0790000
> nf_defrag_ipv6 36864 1 nf_conntrack_ipv6, Live 0xffffffffc0782000
> ipt_REJECT 16384 1 - Live 0xffffffffc077a000
> nf_reject_ipv4 16384 1 ipt_REJECT, Live 0xffffffffc0775000
> nf_log_ipv4 16384 10 - Live 0xffffffffc0770000
> nf_log_common 16384 2 nf_log_ipv6,nf_log_ipv4, Live
> 0xffffffffc076b000
> xt_LOG 16384 20 - Live 0xffffffffc0766000
> xt_limit 16384 21 - Live 0xffffffffc0761000
> xt_tcpudp 16384 18 - Live 0xffffffffc075c000
> xt_addrtype 16384 4 - Live 0xffffffffc0754000
> nf_conntrack_ipv4 16384 11 - Live 0xffffffffc074b000
> nf_defrag_ipv4 16384 1 nf_conntrack_ipv4, Live 0xffffffffc0743000
> xt_conntrack 16384 22 - Live 0xffffffffc073b000
> ip6table_filter 16384 1 - Live 0xffffffffc06e6000
> ip6_tables 28672 1 ip6table_filter, Live 0xffffffffc0722000
> nf_conntrack_netbios_ns 16384 0 - Live 0xffffffffc071d000
> nf_conntrack_broadcast 16384 1 nf_conntrack_netbios_ns, Live
> 0xffffffffc06e1000
> nf_nat_ftp 16384 0 - Live 0xffffffffc06d3000
> nf_nat 32768 1 nf_nat_ftp, Live 0xffffffffc06ec000
> nf_conntrack_ftp 20480 1 nf_nat_ftp, Live 0xffffffffc06be000
> nf_conntrack 131072 8
> nf_conntrack_ipv6,nf_conntrack_ipv4,xt_conntrack,nf_conntrack_netbios
> _n
> s,nf_conntrack_broadcast,nf_nat_ftp,nf_nat,nf_conntrack_ftp, Live
> 0xffffffffc06fc000
> libcrc32c 16384 2 nf_nat,nf_conntrack, Live 0xffffffffc06d9000
> parport_pc 32768 0 - Live 0xffffffffc06ca000
> ppdev 20480 0 - Live 0xffffffffc06c4000
> iptable_filter 16384 1 - Live 0xffffffffc0523000
> lp 20480 0 - Live 0xffffffffc0528000
> parport 49152 3 parport_pc,ppdev,lp, Live 0xffffffffc06b1000
> ip_tables 28672 1 iptable_filter, Live 0xffffffffc04f5000
> x_tables 40960 13
> ip6t_REJECT,xt_hl,ip6t_rt,ipt_REJECT,xt_LOG,xt_limit,xt_tcpudp,xt_add
> rt
> ype,xt_conntrack,ip6table_filter,ip6_tables,iptable_filter,ip_tables,
> Live 0xffffffffc04e5000
> autofs4 40960 2 - Live 0xffffffffc0457000
> rtsx_usb_sdmmc 28672 0 - Live 0xffffffffc03e9000
> rtsx_usb 20480 2 rtsx_usb_ms,rtsx_usb_sdmmc, Live 0xffffffffc06f6000
> i915 1581056 30 - Live 0xffffffffc052e000
> i2c_algo_bit 16384 1 i915, Live 0xffffffffc0466000
> drm_kms_helper 167936 1 i915, Live 0xffffffffc042d000
> syscopyarea 16384 1 drm_kms_helper, Live 0xffffffffc0426000
> sysfillrect 16384 1 drm_kms_helper, Live 0xffffffffc041f000
> sysimgblt 16384 1 drm_kms_helper, Live 0xffffffffc0418000
> fb_sys_fops 16384 1 drm_kms_helper, Live 0xffffffffc0413000
> r8169 81920 0 - Live 0xffffffffc03fe000
> ahci 36864 3 - Live 0xffffffffc03d8000
> psmouse 143360 0 - Live 0xffffffffc04ff000
> drm 397312 30 i915,drm_kms_helper, Live 0xffffffffc0483000
> mii 16384 1 r8169, Live 0xffffffffc047c000
> libahci 32768 1 ahci, Live 0xffffffffc046f000
> video 40960 2 ideapad_laptop,i915, Live 0xffffffffc03f3000
>
> [7.4.] Loaded driver and hardware information (/proc/ioports):
> 0000-0cf7 : PCI Bus 0000:00
> 0000-001f : dma1
> 0020-0021 : pic1
> 0040-0043 : timer0
> 0050-0053 : timer1
> 0060-0060 : keyboard
> 0062-0062 : PNP0C09:00
> 0062-0062 : EC data
> 0064-0064 : keyboard
> 0066-0066 : PNP0C09:00
> 0066-0066 : EC cmd
> 0070-0072 : wdat_wdt
> 0080-008f : dma page reg
> 00a0-00a1 : pic2
> 00c0-00df : dma2
> 00f0-00ff : fpu
> 0680-069f : pnp 00:00
> 0cf8-0cff : PCI conf1
> 0d00-ffff : PCI Bus 0000:00
> 164e-164f : pnp 00:00
> 1800-1803 : ACPI PM1a_EVT_BLK
> 1804-1805 : ACPI PM1a_CNT_BLK
> 1808-180b : ACPI PM_TMR
> 1810-1815 : ACPI CPU throttle
> 1850-1850 : ACPI PM2_CNT_BLK
> 1854-1857 : pnp 00:02
> 1860-1862 : wdat_wdt
> 1868-186c : wdat_wdt
> 1872-1874 : wdat_wdt
> 1880-189f : ACPI GPE0_BLK
> 3000-3fff : PCI Bus 0000:01
> 3000-30ff : 0000:01:00.0
> 3000-30ff : r8169
> 4000-403f : 0000:00:02.0
> 4040-405f : 0000:00:1f.3
> 4060-407f : 0000:00:1f.2
> 4060-407f : ahci
> 4080-4087 : 0000:00:1f.2
> 4080-4087 : ahci
> 4088-408f : 0000:00:1f.2
> 4088-408f : ahci
> 4090-4093 : 0000:00:1f.2
> 4090-4093 : ahci
> 4094-4097 : 0000:00:1f.2
> 4094-4097 : ahci
> ffff-ffff : pnp 00:00
> ffff-ffff : pnp 00:00
> ffff-ffff : pnp 00:00
>
> (/proc/iomem):
> 00000000-00000fff : Reserved
> 00001000-0006efff : System RAM
> 0006f000-0006ffff : Reserved
> 00070000-00087fff : System RAM
> 00088000-000bffff : Reserved
> 000a0000-000bffff : PCI Bus 0000:00
> 000c0000-000c3fff : PCI Bus 0000:00
> 000c4000-000c7fff : PCI Bus 0000:00
> 000c8000-000cbfff : PCI Bus 0000:00
> 000cc000-000cffff : PCI Bus 0000:00
> 000d0000-000d3fff : PCI Bus 0000:00
> 000d4000-000d7fff : PCI Bus 0000:00
> 000d8000-000dbfff : PCI Bus 0000:00
> 000dc000-000dffff : PCI Bus 0000:00
> 000e0000-000e3fff : PCI Bus 0000:00
> 000e4000-000e7fff : PCI Bus 0000:00
> 000e8000-000ebfff : PCI Bus 0000:00
> 000ec000-000effff : PCI Bus 0000:00
> 000f0000-000fffff : System ROM
> 00100000-a56affff : System RAM
> a56b0000-a5eaffff : Reserved
> a5eb0000-aa6befff : System RAM
> aa6bf000-aa8befff : Unknown E820 type
> aa8bf000-aaebefff : Reserved
> aaebf000-aafbefff : ACPI Non-volatile Storage
> aafbf000-aaffefff : ACPI Tables
> aafff000-aaffffff : System RAM
> ab000000-af9fffff : Reserved
> aba00000-af9fffff : Graphics Stolen Memory
> afa00000-feafffff : PCI Bus 0000:00
> afa10000-afa1ffff : pnp 00:05
> afa20000-afa20fff : pnp 00:05
> b0000000-bfffffff : 0000:00:02.0
> c0000000-c03fffff : 0000:00:02.0
> c0400000-c04fffff : PCI Bus 0000:02
> c0400000-c0401fff : 0000:02:00.0
> c0400000-c0401fff : iwlwifi
> c0500000-c05fffff : PCI Bus 0000:01
> c0500000-c0503fff : 0000:01:00.0
> c0500000-c0503fff : r8169
> c0504000-c0504fff : 0000:01:00.0
> c0504000-c0504fff : r8169
> c0600000-c060ffff : 0000:00:14.0
> c0600000-c060ffff : xhci-hcd
> c0610000-c0613fff : 0000:00:03.0
> c0610000-c0613fff : ICH HD audio
> c0614000-c0617fff : 0000:00:1b.0
> c0614000-c0617fff : ICH HD audio
> c0618000-c061801f : 0000:00:16.0
> c0618000-c061801f : mei_me
> c0619000-c06190ff : 0000:00:1f.3
> c061b000-c061b7ff : 0000:00:1f.2
> c061b000-c061b7ff : ahci
> c061c000-c061c3ff : 0000:00:1d.0
> c061c000-c061c3ff : ehci_hcd
> e0000000-efffffff : PCI MMCONFIG 0000 [bus 00-ff]
> e0000000-efffffff : Reserved
> e0000000-efffffff : pnp 00:05
> fe101000-fe112fff : Reserved
> feb00000-feb0ffff : Reserved
> fec00000-fec00fff : Reserved
> fec00000-fec003ff : IOAPIC 0
> fed00000-fee00fff : Reserved
> fed00000-fed003ff : HPET 0
> fed00000-fed003ff : PNP0103:00
> fed10000-fed17fff : pnp 00:05
> fed18000-fed18fff : pnp 00:05
> fed19000-fed19fff : pnp 00:05
> fed1c000-fed1ffff : pnp 00:05
> fed1f800-fed1f9ff : intel-spi
> fed20000-fed3ffff : pnp 00:05
> fed90000-fed93fff : pnp 00:05
> fee00000-fee00fff : Local APIC
> ff000000-ffffffff : INT0800:00
> ffc00000-ffffffff : Reserved
> 100000000-44f5fffff : System RAM
> 2b4800000-2b54031f0 : Kernel code
> 2b54031f1-2b5e695ff : Kernel data
> 2b60dd000-2b6338fff : Kernel bss
> 44f600000-44fffffff : RAM buffer
>
> [7.5.] PCI information ('lspci -vvv' as root):
> 00:00.0 Host bridge: Intel Corporation Haswell-ULT DRAM Controller
> (rev
> 0b)
> Subsystem: Lenovo Haswell-ULT DRAM Controller
> Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
> ParErr- Stepping- SERR- FastB2B- DisINTx-
> Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort-
> <TAbort- <MAbort+ >SERR- <PERR- INTx-
> Latency: 0
> Capabilities: [e0] Vendor Specific Information: Len=0c <?>
> Kernel driver in use: hsw_uncore
>
> 00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT
> Integrated Graphics Controller (rev 0b) (prog-if 00 [VGA controller])
> Subsystem: Lenovo Haswell-ULT Integrated Graphics Controller
> Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
> ParErr- Stepping- SERR- FastB2B- DisINTx+
> Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort-
> <TAbort- <MAbort- >SERR- <PERR- INTx-
> Latency: 0
> Interrupt: pin A routed to IRQ 45
> Region 0: Memory at c0000000 (64-bit, non-prefetchable)
> [size=4M]
> Region 2: Memory at b0000000 (64-bit, prefetchable) [size=256M]
> Region 4: I/O ports at 4000 [size=64]
> [virtual] Expansion ROM at 000c0000 [disabled] [size=128K]
> Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-
> Address: fee04004 Data: 4023
> Capabilities: [d0] Power Management version 2
> Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0-,D1-
> ,D2-,D3hot-,D3cold-)
> Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
> Capabilities: [a4] PCI Advanced Features
> AFCap: TP+ FLR+
> AFCtrl: FLR-
> AFStatus: TP-
> Kernel driver in use: i915
> Kernel modules: i915
>
> 00:03.0 Audio device: Intel Corporation Haswell-ULT HD Audio
> Controller
> (rev 0b)
> Subsystem: Lenovo Haswell-ULT HD Audio Controller
> Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
> ParErr- Stepping- SERR- FastB2B- DisINTx+
> Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
> <TAbort- <MAbort- >SERR- <PERR- INTx-
> Latency: 0, Cache Line Size: 64 bytes
> Interrupt: pin A routed to IRQ 49
> Region 0: Memory at c0610000 (64-bit, non-prefetchable)
> [size=16K]
> Capabilities: [50] Power Management version 2
> Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-
> ,D2-,D3hot-,D3cold-)
> Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
> Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit-
> Address: fee04004 Data: 4024
> Capabilities: [70] Express (v1) Root Complex Integrated
> Endpoint, MSI 00
> DevCap: MaxPayload 128 bytes, PhantFunc 0
> ExtTag- RBE-
> DevCtl: Report errors: Correctable- Non-Fatal-
> Fatal- Unsupported-
> RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
> MaxPayload 128 bytes, MaxReadReq 128 bytes
> DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq-
> AuxPwr- TransPend-
> Kernel driver in use: snd_hda_intel
> Kernel modules: snd_hda_intel
>
> 00:14.0 USB controller: Intel Corporation 8 Series USB xHCI HC (rev
> 04)
> (prog-if 30 [XHCI])
> Subsystem: Lenovo 8 Series USB xHCI HC
> Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
> ParErr- Stepping- SERR- FastB2B- DisINTx+
> Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium
> > TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
>
> Latency: 0
> Interrupt: pin A routed to IRQ 42
> Region 0: Memory at c0600000 (64-bit, non-prefetchable)
> [size=64K]
> Capabilities: [70] Power Management version 2
> Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA PME(D0-
> ,D1-,D2-,D3hot+,D3cold+)
> Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
> Capabilities: [80] MSI: Enable+ Count=1/8 Maskable- 64bit+
> Address: 00000000fee02004 Data: 4022
> Kernel driver in use: xhci_hcd
>
> 00:16.0 Communication controller: Intel Corporation 8 Series HECI #0
> (rev 04)
> Subsystem: Lenovo 8 Series HECI
> Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
> ParErr- Stepping- SERR- FastB2B- DisINTx+
> Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
> <TAbort- <MAbort- >SERR- <PERR- INTx-
> Latency: 0
> Interrupt: pin A routed to IRQ 46
> Region 0: Memory at c0618000 (64-bit, non-prefetchable)
> [size=32]
> Capabilities: [50] Power Management version 3
> Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1-
> ,D2-,D3hot+,D3cold+)
> Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
> Capabilities: [8c] MSI: Enable+ Count=1/1 Maskable- 64bit+
> Address: 00000000fee08004 Data: 4023
> Kernel driver in use: mei_me
> Kernel modules: mei_me
>
> 00:1b.0 Audio device: Intel Corporation 8 Series HD Audio Controller
> (rev 04)
> Subsystem: Lenovo 8 Series HD Audio Controller
> Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
> ParErr- Stepping- SERR- FastB2B- DisINTx+
> Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
> <TAbort- <MAbort- >SERR- <PERR- INTx-
> Latency: 0, Cache Line Size: 64 bytes
> Interrupt: pin A routed to IRQ 48
> Region 0: Memory at c0614000 (64-bit, non-prefetchable)
> [size=16K]
> Capabilities: [50] Power Management version 3
> Flags: PMEClk- DSI- D1- D2- AuxCurrent=55mA PME(D0+,D1-
> ,D2-,D3hot+,D3cold+)
> Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
> Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit+
> Address: 00000000fee02004 Data: 4024
> Capabilities: [70] Express (v1) Root Complex Integrated
> Endpoint, MSI 00
> DevCap: MaxPayload 128 bytes, PhantFunc 0
> ExtTag- RBE-
> DevCtl: Report errors: Correctable- Non-Fatal-
> Fatal- Unsupported-
> RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
> MaxPayload 128 bytes, MaxReadReq 128 bytes
> DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq-
> AuxPwr+ TransPend-
> Capabilities: [100 v1] Virtual Channel
> Caps: LPEVC=0 RefClk=100ns PATEntryBits=1
> Arb: Fixed- WRR32- WRR64- WRR128-
> Ctrl: ArbSelect=Fixed
> Status: InProgress-
> VC0: Caps: PATOffset=00 MaxTimeSlots=1
> RejSnoopTrans-
> Arb: Fixed- WRR32- WRR64- WRR128-
> TWRR128- WRR256-
> Ctrl: Enable+ ID=0 ArbSelect=Fixed
> TC/VC=ff
> Status: NegoPending- InProgress-
> VC1: Caps: PATOffset=00 MaxTimeSlots=1
> RejSnoopTrans-
> Arb: Fixed- WRR32- WRR64- WRR128-
> TWRR128- WRR256-
> Ctrl: Enable- ID=0 ArbSelect=Fixed
> TC/VC=00
> Status: NegoPending- InProgress-
> Kernel driver in use: snd_hda_intel
> Kernel modules: snd_hda_intel
>
> 00:1c.0 PCI bridge: Intel Corporation 8 Series PCI Express Root Port
> 3
> (rev e4) (prog-if 00 [Normal decode])
> Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
> ParErr- Stepping- SERR- FastB2B- DisINTx+
> Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
> <TAbort- <MAbort- >SERR- <PERR- INTx-
> Latency: 0, Cache Line Size: 64 bytes
> Interrupt: pin C routed to IRQ 40
> Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
> I/O behind bridge: 00003000-00003fff
> Memory behind bridge: c0500000-c05fffff
> Prefetchable memory behind bridge: 00000000fff00000-
> 00000000000fffff
> Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort-
> <TAbort- <MAbort- <SERR- <PERR-
> BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
> PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
> Capabilities: [40] Express (v2) Root Port (Slot+), MSI 00
> DevCap: MaxPayload 128 bytes, PhantFunc 0
> ExtTag- RBE+
> DevCtl: Report errors: Correctable- Non-Fatal-
> Fatal- Unsupported-
> RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
> MaxPayload 128 bytes, MaxReadReq 128 bytes
> DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq-
> AuxPwr+ TransPend-
> LnkCap: Port #3, Speed 5GT/s, Width x1, ASPM L0s
> L1, Exit Latency L0s <512ns, L1 <16us
> ClockPM- Surprise- LLActRep+ BwNot+
> ASPMOptComp-
> LnkCtl: ASPM L1 Enabled; RCB 64 bytes Disabled-
> CommClk+
> ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
> LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train-
> SlotClk+ DLActive+ BWMgmt+ ABWMgmt-
> SltCap: AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd-
> HotPlug- Surprise-
> Slot #2, PowerLimit 10.000W; Interlock-
> NoCompl+
> SltCtl: Enable: AttnBtn- PwrFlt- MRL- PresDet-
> CmdCplt- HPIrq- LinkChg-
> Control: AttnInd Unknown, PwrInd Unknown,
> Power- Interlock-
> SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt-
> PresDet+ Interlock-
> Changed: MRL- PresDet- LinkState+
> RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal-
> PMEIntEna+ CRSVisible-
> RootCap: CRSVisible-
> RootSta: PME ReqID 0000, PMEStatus- PMEPending-
> DevCap2: Completion Timeout: Range ABC, TimeoutDis+,
> LTR-, OBFF Not Supported ARIFwd-
> DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-
> ,
> LTR-, OBFF Disabled ARIFwd-
> LnkCtl2: Target Link Speed: 5GT/s, EnterCompliance-
> SpeedDis-
> Transmit Margin: Normal Operating Range,
> EnterModifiedCompliance- ComplianceSOS-
> Compliance De-emphasis: -6dB
> LnkSta2: Current De-emphasis Level: -3.5dB,
> EqualizationComplete-, EqualizationPhase1-
> EqualizationPhase2-, EqualizationPhase3-,
> LinkEqualizationRequest-
> Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit-
> Address: fee04004 Data: 4021
> Capabilities: [90] Subsystem: Lenovo 8 Series PCI Express Root
> Port 3
> Capabilities: [a0] Power Management version 3
> Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1-
> ,D2-,D3hot+,D3cold+)
> Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
> Capabilities: [100 v0] #00
> Capabilities: [200 v1] L1 PM Substates
> L1SubCap: PCI-PM_L1.2+ PCI-PM_L1.1+ ASPM_L1.2+
> ASPM_L1.1+ L1_PM_Substates+
> PortCommonModeRestoreTime=40us
> PortTPowerOnTime=10us
> L1SubCtl1: PCI-PM_L1.2- PCI-PM_L1.1- ASPM_L1.2-
> ASPM_L1.1-
> T_CommonMode=150us LTR1.2_Threshold=163840ns
> L1SubCtl2: T_PwrOn=150us
> Kernel driver in use: pcieport
> Kernel modules: shpchp
>
> 00:1c.3 PCI bridge: Intel Corporation 8 Series PCI Express Root Port
> 4
> (rev e4) (prog-if 00 [Normal decode])
> Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
> ParErr- Stepping- SERR- FastB2B- DisINTx+
> Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
> <TAbort- <MAbort- >SERR- <PERR- INTx-
> Latency: 0, Cache Line Size: 64 bytes
> Interrupt: pin D routed to IRQ 41
> Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
> I/O behind bridge: 0000f000-00000fff
> Memory behind bridge: c0400000-c04fffff
> Prefetchable memory behind bridge: 00000000fff00000-
> 00000000000fffff
> Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort-
> <TAbort- <MAbort- <SERR- <PERR-
> BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
> PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
> Capabilities: [40] Express (v2) Root Port (Slot+), MSI 00
> DevCap: MaxPayload 128 bytes, PhantFunc 0
> ExtTag- RBE+
> DevCtl: Report errors: Correctable- Non-Fatal-
> Fatal- Unsupported-
> RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
> MaxPayload 128 bytes, MaxReadReq 128 bytes
> DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq-
> AuxPwr+ TransPend-
> LnkCap: Port #4, Speed 5GT/s, Width x1, ASPM L0s
> L1, Exit Latency L0s <512ns, L1 <16us
> ClockPM- Surprise- LLActRep+ BwNot+
> ASPMOptComp-
> LnkCtl: ASPM L1 Enabled; RCB 64 bytes Disabled-
> CommClk+
> ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
> LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train-
> SlotClk+ DLActive+ BWMgmt+ ABWMgmt-
> SltCap: AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd-
> HotPlug- Surprise-
> Slot #3, PowerLimit 10.000W; Interlock-
> NoCompl+
> SltCtl: Enable: AttnBtn- PwrFlt- MRL- PresDet-
> CmdCplt- HPIrq- LinkChg-
> Control: AttnInd Unknown, PwrInd Unknown,
> Power- Interlock-
> SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt-
> PresDet+ Interlock-
> Changed: MRL- PresDet- LinkState+
> RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal-
> PMEIntEna+ CRSVisible-
> RootCap: CRSVisible-
> RootSta: PME ReqID 0000, PMEStatus- PMEPending-
> DevCap2: Completion Timeout: Range ABC, TimeoutDis+,
> LTR-, OBFF Not Supported ARIFwd-
> DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-
> ,
> LTR-, OBFF Disabled ARIFwd-
> LnkCtl2: Target Link Speed: 5GT/s, EnterCompliance-
> SpeedDis-
> Transmit Margin: Normal Operating Range,
> EnterModifiedCompliance- ComplianceSOS-
> Compliance De-emphasis: -6dB
> LnkSta2: Current De-emphasis Level: -3.5dB,
> EqualizationComplete-, EqualizationPhase1-
> EqualizationPhase2-, EqualizationPhase3-,
> LinkEqualizationRequest-
> Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit-
> Address: fee08004 Data: 4021
> Capabilities: [90] Subsystem: Lenovo 8 Series PCI Express Root
> Port 4
> Capabilities: [a0] Power Management version 3
> Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1-
> ,D2-,D3hot+,D3cold+)
> Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
> Capabilities: [100 v0] #00
> Capabilities: [200 v1] L1 PM Substates
> L1SubCap: PCI-PM_L1.2+ PCI-PM_L1.1+ ASPM_L1.2+
> ASPM_L1.1+ L1_PM_Substates+
> PortCommonModeRestoreTime=40us
> PortTPowerOnTime=10us
> L1SubCtl1: PCI-PM_L1.2+ PCI-PM_L1.1+ ASPM_L1.2+
> ASPM_L1.1+
> T_CommonMode=40us LTR1.2_Threshold=163840ns
> L1SubCtl2: T_PwrOn=60us
> Kernel driver in use: pcieport
> Kernel modules: shpchp
>
> 00:1d.0 USB controller: Intel Corporation 8 Series USB EHCI #1 (rev
> 04)
> (prog-if 20 [EHCI])
> Subsystem: Lenovo 8 Series USB EHCI
> Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
> ParErr- Stepping- SERR- FastB2B- DisINTx-
> Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium
> > TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
>
> Latency: 0
> Interrupt: pin A routed to IRQ 23
> Region 0: Memory at c061c000 (32-bit, non-prefetchable)
> [size=1K]
> Capabilities: [50] Power Management version 3
> Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA
> PME(D0+,D1-,D2-,D3hot+,D3cold+)
> Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
> Capabilities: [58] Debug port: BAR=1 offset=00a0
> Capabilities: [98] PCI Advanced Features
> AFCap: TP+ FLR+
> AFCtrl: FLR-
> AFStatus: TP-
> Kernel driver in use: ehci-pci
>
> 00:1f.0 ISA bridge: Intel Corporation 8 Series LPC Controller (rev
> 04)
> Subsystem: Lenovo 8 Series LPC Controller
> Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
> ParErr- Stepping- SERR- FastB2B- DisINTx-
> Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium
> > TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
>
> Latency: 0
> Capabilities: [e0] Vendor Specific Information: Len=0c <?>
> Kernel driver in use: lpc_ich
> Kernel modules: lpc_ich
>
> 00:1f.2 SATA controller: Intel Corporation 8 Series SATA Controller 1
> [AHCI mode] (rev 04) (prog-if 01 [AHCI 1.0])
> Subsystem: Lenovo 8 Series SATA Controller 1 [AHCI mode]
> Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
> ParErr- Stepping- SERR- FastB2B- DisINTx+
> Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium
> > TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
>
> Latency: 0
> Interrupt: pin B routed to IRQ 43
> Region 0: I/O ports at 4088 [size=8]
> Region 1: I/O ports at 4094 [size=4]
> Region 2: I/O ports at 4080 [size=8]
> Region 3: I/O ports at 4090 [size=4]
> Region 4: I/O ports at 4060 [size=32]
> Region 5: Memory at c061b000 (32-bit, non-prefetchable)
> [size=2K]
> Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit-
> Address: fee02004 Data: 4025
> Capabilities: [70] Power Management version 3
> Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-
> ,D2-,D3hot+,D3cold-)
> Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
> Capabilities: [a8] SATA HBA v1.0 BAR4 Offset=00000004
> Kernel driver in use: ahci
> Kernel modules: ahci
>
> 00:1f.3 SMBus: Intel Corporation 8 Series SMBus Controller (rev 04)
> Subsystem: Lenovo 8 Series SMBus Controller
> Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop-
> ParErr- Stepping- SERR- FastB2B- DisINTx-
> Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium
> > TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
>
> Interrupt: pin C routed to IRQ 0
> Region 0: Memory at c0619000 (64-bit, non-prefetchable)
> [size=256]
> Region 4: I/O ports at 4040 [size=32]
> Kernel modules: i2c_i801
>
> 01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
> RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 10)
> Subsystem: Lenovo RTL8111/8168/8411 PCI Express Gigabit
> Ethernet Controller
> Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
> ParErr- Stepping- SERR- FastB2B- DisINTx+
> Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
> <TAbort- <MAbort- >SERR- <PERR- INTx-
> Latency: 0, Cache Line Size: 64 bytes
> Interrupt: pin A routed to IRQ 44
> Region 0: I/O ports at 3000 [size=256]
> Region 2: Memory at c0504000 (64-bit, non-prefetchable)
> [size=4K]
> Region 4: Memory at c0500000 (64-bit, non-prefetchable)
> [size=16K]
> Capabilities: [40] Power Management version 3
> Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=375mA
> PME(D0+,D1+,D2+,D3hot+,D3cold+)
> Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
> Capabilities: [50] MSI: Enable+ Count=1/1 Maskable- 64bit+
> Address: 00000000fee02004 Data: 4023
> Capabilities: [70] Express (v2) Endpoint, MSI 01
> DevCap: MaxPayload 128 bytes, PhantFunc 0,
> Latency L0s <512ns, L1 <64us
> ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset-
> SlotPowerLimit 10.000W
> DevCtl: Report errors: Correctable- Non-Fatal-
> Fatal- Unsupported-
> RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop-
> MaxPayload 128 bytes, MaxReadReq 4096 bytes
> DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq-
> AuxPwr+ TransPend-
> LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM
> L0s L1, Exit Latency L0s unlimited, L1 <64us
> ClockPM+ Surprise- LLActRep- BwNot-
> ASPMOptComp+
> LnkCtl: ASPM L1 Enabled; RCB 64 bytes Disabled-
> CommClk+
> ExtSynch- ClockPM+ AutWidDis- BWInt- AutBWInt-
> LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train-
> SlotClk+ DLActive- BWMgmt- ABWMgmt-
> DevCap2: Completion Timeout: Range ABCD, TimeoutDis+,
> LTR+, OBFF Via message/WAKE#
> DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-
> ,
> LTR-, OBFF Disabled
> LnkCtl2: Target Link Speed: 2.5GT/s, EnterCompliance-
> SpeedDis-
> Transmit Margin: Normal Operating Range,
> EnterModifiedCompliance- ComplianceSOS-
> Compliance De-emphasis: -6dB
> LnkSta2: Current De-emphasis Level: -6dB,
> EqualizationComplete-, EqualizationPhase1-
> EqualizationPhase2-, EqualizationPhase3-,
> LinkEqualizationRequest-
> Capabilities: [b0] MSI-X: Enable- Count=4 Masked-
> Vector table: BAR=4 offset=00000000
> PBA: BAR=4 offset=00000800
> Capabilities: [d0] Vital Product Data
> pcilib: sysfs_read_vpd: read failed: Input/output error
> Not readable
> Capabilities: [100 v15] #ffff
> Capabilities: [ffc v15] #ffff
> Capabilities: [ffc v15] <chain looped>
> Kernel driver in use: r8169
> Kernel modules: r8169
>
> 02:00.0 Network controller: Intel Corporation Wireless 3160 (rev 93)
> Subsystem: Intel Corporation Dual Band Wireless AC 3160
> Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
> ParErr- Stepping- SERR- FastB2B- DisINTx+
> Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
> <TAbort- <MAbort- >SERR- <PERR- INTx-
> Latency: 0, Cache Line Size: 64 bytes
> Interrupt: pin A routed to IRQ 47
> Region 0: Memory at c0400000 (64-bit, non-prefetchable)
> [size=8K]
> Capabilities: [c8] Power Management version 3
> Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0+,D1-
> ,D2-,D3hot+,D3cold+)
> Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
> Capabilities: [d0] MSI: Enable+ Count=1/1 Maskable- 64bit+
> Address: 00000000fee08004 Data: 4024
> Capabilities: [40] Express (v2) Endpoint, MSI 00
> DevCap: MaxPayload 128 bytes, PhantFunc 0,
> Latency L0s <512ns, L1 unlimited
> ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset+
> SlotPowerLimit 0.000W
> DevCtl: Report errors: Correctable- Non-Fatal-
> Fatal- Unsupported-
> RlxdOrd+ ExtTag- PhantFunc- AuxPwr+ NoSnoop+
> FLReset-
> MaxPayload 128 bytes, MaxReadReq 128 bytes
> DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq-
> AuxPwr+ TransPend-
> LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM
> L0s L1, Exit Latency L0s <4us, L1 <32us
> ClockPM+ Surprise- LLActRep- BwNot-
> ASPMOptComp-
> LnkCtl: ASPM L0s L1 Enabled; RCB 64 bytes
> Disabled- CommClk+
> ExtSynch- ClockPM+ AutWidDis- BWInt- AutBWInt-
> LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train-
> SlotClk+ DLActive- BWMgmt- ABWMgmt-
> DevCap2: Completion Timeout: Range B, TimeoutDis+,
> LTR+, OBFF Via WAKE#
> DevCtl2: Completion Timeout: 16ms to 55ms, TimeoutDis-
> ,
> LTR-, OBFF Disabled
> LnkCtl2: Target Link Speed: 2.5GT/s, EnterCompliance-
> SpeedDis-
> Transmit Margin: Normal Operating Range,
> EnterModifiedCompliance- ComplianceSOS-
> Compliance De-emphasis: -6dB
> LnkSta2: Current De-emphasis Level: -3.5dB,
> EqualizationComplete-, EqualizationPhase1-
> EqualizationPhase2-, EqualizationPhase3-,
> LinkEqualizationRequest-
> Capabilities: [100 v1] Advanced Error Reporting
> UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt-
> UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
> UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt-
> UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
> UESvrt: DLP+ SDES+ TLP- FCP+ CmpltTO- CmpltAbrt-
> UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol-
> CESta: RxErr- BadTLP- BadDLLP- Rollover-
> Timeout- NonFatalErr-
> CEMsk: RxErr- BadTLP- BadDLLP- Rollover-
> Timeout- NonFatalErr+
> AERCap: First Error Pointer: 00, GenCap- CGenEn-
> ChkCap- ChkEn-
> Capabilities: [140 v1] Device Serial Number d0-7e-35-ff-ff-2f-
> 3a-d2
> Capabilities: [14c v1] Latency Tolerance Reporting
> Max snoop latency: 3145728ns
> Max no snoop latency: 3145728ns
> Capabilities: [154 v1] Vendor Specific Information: ID=cafe
> Rev=1 Len=014 <?>
> Kernel driver in use: iwlwifi
> Kernel modules: iwlwifi
>
> [7.6.] SCSI information (from /proc/scsi/scsi):
> Attached devices:
> Host: scsi0 Channel: 00 Id: 00 Lun: 00
> Vendor: ATA Model: ST1000LM024 HN-M Rev: 0001
> Type: Direct-Access ANSI SCSI revision: 05
> Host: scsi1 Channel: 00 Id: 00 Lun: 00
> Vendor: HL-DT-ST Model: DVDRAM GUA0N Rev: AL00
> Type: CD-ROM ANSI SCSI revision: 05
>
> [7.7.] Other information that might be relevant to the problem
> (please look in /proc and include all information that you
> think to be relevant):
> 1 1484 1649 191 2005 2363 3047 47 998 mdstat
> 10 1489 1685 1913 201 2367 306 48 acpi meminfo
> 100 15 1742 1918 202 237 307 49 asound misc
> 1000 1511 1746 1922 2030 2389 31 50 buddyinfo modules
> 1001 1561 1747 1925 2034 2392 32 530 bus mounts
> 1035 1566 1754 1929 2046 24 3247 55 cgroups mtrr
> 105 1568 1758 1931 2054 240 33 56 cmdline net
> 11 1572 1760 1943 2089 241 3312 570 consoles pagetypei
> nf
> o
> 1124 1573 1762 1945 2098 2491 3342 571 cpuinfo partition
> s
> 114 1586 18 1952 21 25 3350 6 crypto sched_deb
> ug
> 1163 1591 1826 1961 2102 2552 3352 7 devices schedstat
> 1169 1594 1831 1962 2103 26 3390 759 diskstats scsi
> 1172 1597 184 1965 2106 2628 34 8 dma self
> 12 16 1846 1968 2111 2678 3485 9 driver slabinfo
> 1220 1608 185 1969 2114 268 3500 911 execdomains softirqs
> 1242 1609 1852 1979 2117 27 3620 958 fb stat
> 1296 1611 1859 198 212 2706 3621 959 filesystems swaps
> 1297 1612 186 1980 2126 272 3641 960 fs sys
> 13 1613 1864 1981 2129 2728 37 961 interrupts sysrq-
> trigger
> 131 1614 1866 1984 214 2763 38 962 iomem sysvipc
> 1325 1615 187 199 2156 279 39 966 ioports thread-
> self
> 14 1618 1872 1991 2165 28 397 967 irq timer_lis
> t
> 1415 1622 1876 1992 2175 2805 4 976 kallsyms tty
> 1426 1623 188 1993 2177 2837 40 98 kcore uptime
> 1432 1625 1888 1994 22 2839 41 980 keys version
> 1446 1630 189 1999 2216 2865 42 987 key-
> users vmallocinfo
> 1459 1631 1893 2 2233 2880 422 988 kmsg vmstat
> 1463 1634 1894 20 2297 2895 43 99 kpagecgroup zoneinfo
> 1464 1635 1898 200 2317 2904 44 990 kpagecount
> 1469 1636 19 2001 2319 2914 444 992 kpageflags
> 1471 1637 190 2002 2335 30 45 994 loadavg
> 1473 1645 1900 2003 2356 3003 46 997 locks
>
> [X.] Other notes, patches, fixes, workarounds:
> A bug has been filed with the Ubuntu kernel team as well.
> Link: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1743027
Email thread with RTC maintainer for additional background:
On 02/13/2018 08:45 PM, Alexandre Belloni wrote:
> On 13/02/2018 at 18:56:34 -0500, Peter Milley wrote:
>> Okay, I've booted the new kernel.
>>
>> peter@haven:~$ uname -a
>> Linux haven 4.16.0-rc1+ #32 SMP Tue Feb 13 22:11:39 CET 2018 x86_64
>> x86_64 x86_64 GNU/Linux
>> peter@haven:~$ dmesg | grep -i rtc
>> [ 0.045403] RTC time: 23:46:52, date: 02/13/18
>> [ 1.368198] rtc_cmos 00:01: RTC can wake from S4
>> [ 1.368205] rtc_cmos: drivers/rtc/rtc-cmos.c +679 cmos_do_probe
>> [ 1.368235] rtc_cmos: drivers/rtc/rtc-cmos.c +684 cmos_do_probe
>> [ 1.368260] rtc_cmos: drivers/rtc/rtc-cmos.c +688 cmos_do_probe
>> [ 1.368285] rtc_cmos: 1: 70 8
>> [ 1.368302] rtc_cmos: probe of 00:01 failed with error -16
>> [ 1.408861] hctosys: unable to open rtc device (rtc0)
>>
> [...]
>
>> And /proc/ioports:
>> peter@haven:~$ sudo cat /proc/ioports
>> 0000-0cf7 : PCI Bus 0000:00
>> 0000-001f : dma1
>> 0020-0021 : pic1
>> 0040-0043 : timer0
>> 0050-0053 : timer1
>> 0060-0060 : keyboard
>> 0062-0062 : PNP0C09:00
>> 0062-0062 : EC data
>> 0064-0064 : keyboard
>> 0066-0066 : PNP0C09:00
>> 0066-0066 : EC cmd
>> 0070-0072 : wdat_wdt
> So I can tell you what is happening but I can't tell you why. You have a
> watchdog at 0x70 (size 2) and the RTC at 0x70 (size 8).
>
> Because the watchdog driver is probed first and it requests the io
> region, when the RTC driver is probed, it fails to request the same
> region.
>
> Maybe your 4.10 kernel didn't have CONFIG_WDAT_WDT (this appeared in
> 4.9).
> I'm afraid, that is as far as I can help, you'd have to ask someone that
> is more knowledgeable about x86 to go further (I've added the wdat_wdt
> driver author in Cc).
>
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