(I posted at http://permalink.gmane.org/gmane.linux.kernel/2219523 but received no reply, so as per instructions from https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1574178/comments/23 I'm opening a bug report here. I do not know what Component this bug belongs in, so I took a wild guess, sorry if it's completely wrong.) [2.] Full description of the problem/report: I have a Lenovo A740 (running Xubuntu 16.04) which, with kernel versions >= 4.3, gives this on trying to boot: Begin: Waiting for root file system ... Begin: Running /scripts/local-block ... done. Begin: Running /scripts/local-block ... done. Begin: Running /scripts/local-block ... done. […] done. Gave up waiting for root device. and drops me into an (initramfs) shell, where my keyboard is unresponsive. Images of the screen are at: https://launchpadlibrarian.net/255781725/dropping.jpg https://launchpadlibrarian.net/255781692/drop.jpg It boots fine with earlier kernels, e.g. 4.2.0. After trying various packages from http://kernel.ubuntu.com/~kernel-ppa/mainline/ it seems anything 4.3 or higher gives the issue, while linux-image-4.2.8-040208-generic_4.2.8-040208.201512150620_amd64.deb is the highest version that I can get to boot. I've filed an Ubuntu bug report at https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1574178 and was asked to move the issue upstream. [3.] Keywords (i.e., modules, networking, kernel): filesystem maybe? [4.] Kernel version (from /proc/version): linux-image-4.3.0-040300-generic_4.3.0-040300.201511020949_amd64.deb or higher [5.] Output of Oops.. message (if applicable) with symbolic information resolved (see Documentation/oops-tracing.txt) [6.] A small shell script or example program which triggers the problem (if possible) [7.] Environment [7.1.] Software (add the output of the ver_linux script here) I guess scripts/ver_linux isn't of much use since I can't boot 4.3 or higher anyway, but here it is just in case: $ sh scripts/ver_linux If some fields are empty or look unusual you may have an old version. Compare to the current minimal requirements in Documentation/Changes. Linux storepadda 4.2.0-35-generic #40-Ubuntu SMP Tue Mar 15 22:15:45 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux GNU C 5.3.1 GNU Make 4.1 Binutils 2.26 Util-linux 2.27.1 Mount 2.27.1 Module-init-tools 22 E2fsprogs 1.42.13 Pcmciautils 018 PPP 2.4.7 Linux C Library 2.23 Dynamic linker (ldd) 2.23 Linux C++ Library 6.0.21 Procps 3.3.10 Net-tools 1.60 Kbd 1.15.5 Console-tools 1.15.5 Sh-utils 8.25 Udev 229 Wireless-tools 30 Modules Loaded 8723au ablk_helper aesni_intel aes_x86_64 ahci autofs4 binfmt_misc btrfs cfg80211 coretemp crc32_pclmul crct10dif_pclmul cryptd drm drm_kms_helper gf128mul glue_helper hid hid_generic hid_logitech_dj hid_logitech_hidpp hid_multitouch i2c_algo_bit i915 input_leds intel_powerclamp intel_rapl joydev kvm libahci lp lpc_ich lrw mac_hid media mei mei_me memstick mii nls_iso8859_1 parport parport_pc ppdev psmouse r8169 raid6_pq rtsx_pci rtsx_pci_ms rtsx_pci_sdmmc serio_raw shpchp snd snd_hda_codec snd_hda_codec_generic snd_hda_codec_hdmi snd_hda_codec_realtek 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 ttm uas usbhid usb_storage uvcvideo v4l2_common video videobuf2_core videobuf2_memops videobuf2_vmalloc videodev x86_pkg_temp_thermal xor [7.2.] Processor information (from /proc/cpuinfo): (from running 4.2) processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 69 model name : Intel(R) Core(TM) i7-4558U CPU @ 2.80GHz stepping : 1 microcode : 0x17 cpu MHz : 1189.453 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 aperfmperf eagerfpu pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 fma cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm ida arat epb pln pts dtherm tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid xsaveopt bugs : bogomips : 5586.93 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) i7-4558U CPU @ 2.80GHz stepping : 1 microcode : 0x17 cpu MHz : 1154.234 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 aperfmperf eagerfpu pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 fma cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm ida arat epb pln pts dtherm tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid xsaveopt bugs : bogomips : 5586.93 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) i7-4558U CPU @ 2.80GHz stepping : 1 microcode : 0x17 cpu MHz : 860.562 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 aperfmperf eagerfpu pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 fma cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm ida arat epb pln pts dtherm tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid xsaveopt bugs : bogomips : 5586.93 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) i7-4558U CPU @ 2.80GHz stepping : 1 microcode : 0x17 cpu MHz : 1000.015 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 aperfmperf eagerfpu pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 fma cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm ida arat epb pln pts dtherm tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid xsaveopt bugs : bogomips : 5586.93 clflush size : 64 cache_alignment : 64 address sizes : 39 bits physical, 48 bits virtual power management: [7.3.] Module information (from /proc/modules): (from running 4.2) uas 24576 0 - Live 0x0000000000000000 usb_storage 69632 1 uas, Live 0x0000000000000000 cfg80211 557056 0 - Live 0x0000000000000000 binfmt_misc 20480 1 - Live 0x0000000000000000 nls_iso8859_1 16384 1 - Live 0x0000000000000000 snd_hda_codec_realtek 86016 1 - Live 0x0000000000000000 snd_hda_codec_generic 77824 1 snd_hda_codec_realtek, Live 0x0000000000000000 snd_hda_codec_hdmi 49152 1 - Live 0x0000000000000000 uvcvideo 90112 0 - Live 0x0000000000000000 videobuf2_vmalloc 16384 1 uvcvideo, Live 0x0000000000000000 videobuf2_memops 16384 1 videobuf2_vmalloc, Live 0x0000000000000000 snd_hda_intel 36864 5 - Live 0x0000000000000000 snd_hda_codec 135168 4 snd_hda_codec_realtek,snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel, Live 0x0000000000000000 videobuf2_core 49152 1 uvcvideo, Live 0x0000000000000000 snd_hda_core 65536 5 snd_hda_codec_realtek,snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec, Live 0x0000000000000000 intel_rapl 20480 0 - Live 0x0000000000000000 x86_pkg_temp_thermal 16384 0 - Live 0x0000000000000000 intel_powerclamp 16384 0 - Live 0x0000000000000000 coretemp 16384 0 - Live 0x0000000000000000 snd_hwdep 16384 1 snd_hda_codec, Live 0x0000000000000000 v4l2_common 16384 1 videobuf2_core, Live 0x0000000000000000 videodev 172032 3 uvcvideo,videobuf2_core,v4l2_common, Live 0x0000000000000000 snd_pcm 106496 4 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hda_core, Live 0x0000000000000000 media 24576 2 uvcvideo,videodev, Live 0x0000000000000000 8723au 897024 0 - Live 0x0000000000000000 (OE) snd_seq_midi 16384 0 - Live 0x0000000000000000 snd_seq_midi_event 16384 1 snd_seq_midi, Live 0x0000000000000000 hid_multitouch 20480 0 - Live 0x0000000000000000 joydev 20480 0 - Live 0x0000000000000000 snd_rawmidi 32768 1 snd_seq_midi, Live 0x0000000000000000 kvm 516096 0 - Live 0x0000000000000000 snd_seq 69632 2 snd_seq_midi,snd_seq_midi_event, Live 0x0000000000000000 crct10dif_pclmul 16384 0 - Live 0x0000000000000000 snd_seq_device 16384 3 snd_seq_midi,snd_rawmidi,snd_seq, Live 0x0000000000000000 crc32_pclmul 16384 0 - Live 0x0000000000000000 snd_timer 32768 2 snd_pcm,snd_seq, Live 0x0000000000000000 mei_me 36864 0 - Live 0x0000000000000000 input_leds 16384 0 - Live 0x0000000000000000 rtsx_pci_ms 20480 0 - Live 0x0000000000000000 mac_hid 16384 0 - Live 0x0000000000000000 memstick 20480 1 rtsx_pci_ms, Live 0x0000000000000000 aesni_intel 167936 0 - Live 0x0000000000000000 mei 98304 1 mei_me, Live 0x0000000000000000 snd 81920 21 snd_hda_codec_realtek,snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_rawmidi,snd_seq,snd_seq_device,snd_timer, Live 0x0000000000000000 shpchp 36864 0 - Live 0x0000000000000000 serio_raw 16384 0 - Live 0x0000000000000000 aes_x86_64 20480 1 aesni_intel, Live 0x0000000000000000 lrw 16384 1 aesni_intel, Live 0x0000000000000000 gf128mul 16384 1 lrw, Live 0x0000000000000000 glue_helper 16384 1 aesni_intel, Live 0x0000000000000000 ablk_helper 16384 1 aesni_intel, Live 0x0000000000000000 soundcore 16384 1 snd, Live 0x0000000000000000 lpc_ich 24576 0 - Live 0x0000000000000000 cryptd 20480 2 aesni_intel,ablk_helper, Live 0x0000000000000000 parport_pc 32768 0 - Live 0x0000000000000000 ppdev 20480 0 - Live 0x0000000000000000 lp 20480 0 - Live 0x0000000000000000 parport 49152 3 parport_pc,ppdev,lp, Live 0x0000000000000000 autofs4 40960 2 - Live 0x0000000000000000 btrfs 978944 0 - Live 0x0000000000000000 xor 24576 1 btrfs, Live 0x0000000000000000 raid6_pq 102400 1 btrfs, Live 0x0000000000000000 hid_generic 16384 0 - Live 0x0000000000000000 hid_logitech_hidpp 20480 0 - Live 0x0000000000000000 hid_logitech_dj 20480 0 - Live 0x0000000000000000 usbhid 49152 0 - Live 0x0000000000000000 hid 118784 6 hid_multitouch,hid_generic,hid_logitech_hidpp,hid_logitech_dj,usbhid, Live 0x0000000000000000 rtsx_pci_sdmmc 24576 0 - Live 0x0000000000000000 i915 1134592 5 - Live 0x0000000000000000 video 40960 1 i915, Live 0x0000000000000000 ttm 94208 0 - Live 0x0000000000000000 rtsx_pci 53248 2 rtsx_pci_ms,rtsx_pci_sdmmc, Live 0x0000000000000000 psmouse 126976 0 - Live 0x0000000000000000 i2c_algo_bit 16384 1 i915, Live 0x0000000000000000 drm_kms_helper 131072 1 i915, Live 0x0000000000000000 r8169 81920 0 - Live 0x0000000000000000 mii 16384 1 r8169, Live 0x0000000000000000 drm 356352 7 i915,ttm,drm_kms_helper, Live 0x0000000000000000 ahci 36864 3 - Live 0x0000000000000000 libahci 32768 1 ahci, Live 0x0000000000000000 [7.4.] Loaded driver and hardware information (/proc/ioports, /proc/iomem) (from running 4.2) /proc/ioports: 0000-001f : dma1 0020-0021 : pic1 0040-0043 : timer0 0050-0053 : timer1 0060-0060 : keyboard 0064-0064 : keyboard 0070-0071 : rtc_cmos 0070-0071 : rtc0 0080-008f : dma page reg 00a0-00a1 : pic2 00c0-00df : dma2 00f0-00ff : fpu 0cf8-0cff : PCI conf1 1800-1803 : ACPI PM1a_EVT_BLK 1804-1805 : ACPI PM1a_CNT_BLK 1808-180b : ACPI PM_TMR 1830-1833 : iTCO_wdt.0.auto 1850-1850 : ACPI PM2_CNT_BLK 1860-187f : iTCO_wdt.0.auto 1880-189f : ACPI GPE0_BLK 3000-3fff : PCI Bus 0000:08 3000-307f : 0000:08:00.0 4000-4fff : PCI Bus 0000:02 5000-5fff : PCI Bus 0000:01 5000-50ff : 0000:01:00.0 5000-50ff : r8169 6000-603f : 0000:00:02.0 6040-605f : 0000:00:1f.3 6060-607f : 0000:00:1f.2 6060-607f : ahci 6080-6087 : 0000:00:1f.2 6080-6087 : ahci 6088-608f : 0000:00:1f.2 6088-608f : ahci 6090-6093 : 0000:00:1f.2 6090-6093 : ahci 6094-6097 : 0000:00:1f.2 6094-6097 : ahci /proc/iomem: 00000000-00000fff : reserved 00001000-00057fff : System RAM 00058000-00058fff : reserved 00059000-00085fff : System RAM 00086000-0009ffff : reserved 000f0000-000fffff : System ROM 00100000-9a4cefff : System RAM 02000000-027fdddc : Kernel code 027fdddd-02f35d3f : Kernel data 030ad000-031effff : Kernel bss 9a4cf000-9a6cefff : reserved 9a6cf000-9aebefff : reserved 9aebf000-9afbefff : ACPI Non-volatile Storage 9afbf000-9affefff : ACPI Tables 9afff000-9affffff : System RAM 9b000000-9b9fffff : RAM buffer 9ba00000-9f9fffff : reserved 9ba00000-9f9fffff : Graphics Stolen Memory a0000000-b1ffffff : PCI Bus 0000:08 a0000000-afffffff : 0000:08:00.0 b0000000-b1ffffff : 0000:08:00.0 b2000000-b2ffffff : PCI Bus 0000:02 b3000000-b3ffffff : PCI Bus 0000:08 b3000000-b3ffffff : 0000:08:00.0 b4000000-b4ffffff : PCI Bus 0000:02 b4000000-b4000fff : 0000:02:00.0 b4000000-b4000fff : rtsx_pci b5000000-b53fffff : 0000:00:02.0 b5400000-b54fffff : PCI Bus 0000:01 b5400000-b5403fff : 0000:01:00.0 b5400000-b5403fff : r8169 b5500000-b55fffff : PCI Bus 0000:01 b5500000-b5500fff : 0000:01:00.0 b5500000-b5500fff : r8169 b5600000-b560ffff : 0000:00:14.0 b5600000-b560ffff : xhci-hcd b5610000-b5613fff : 0000:00:03.0 b5610000-b5613fff : ICH HD audio b5614000-b5617fff : 0000:00:1b.0 b5614000-b5617fff : ICH HD audio b5618000-b56187ff : 0000:00:1f.2 b5618000-b56187ff : ahci b5619000-b56193ff : 0000:00:1d.0 b561a000-b561a0ff : 0000:00:1f.3 b561b000-b561b01f : 0000:00:16.0 b561b000-b561b01f : mei_me c0000000-cfffffff : 0000:00:02.0 e00f8000-e00f8fff : reserved fec00000-fec003ff : IOAPIC 0 fed00000-fed003ff : HPET 0 fed1c000-fed1ffff : reserved fed1f410-fed1f414 : iTCO_wdt.0.auto fee00000-fee00fff : Local APIC ffb00000-ffffffff : reserved 100000000-25f5fffff : System RAM 25f600000-25fffffff : RAM buffer [7.5.] PCI information ('lspci -vvv' as root) (from running 4.2) 00:00.0 Host bridge: Intel Corporation Haswell-ULT DRAM Controller (rev 09) 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 09) (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 47 Region 0: Memory at b5000000 (64-bit, non-prefetchable) [size=4M] Region 2: Memory at c0000000 (64-bit, prefetchable) [size=256M] Region 4: I/O ports at 6000 [size=64] Expansion ROM at <unassigned> [disabled] Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit- Address: fee0200c Data: 41b1 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 09) 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 50 Region 0: Memory at b5610000 (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: fee0e00c Data: 41e1 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 43 Region 0: Memory at b5600000 (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: 00000000fee0c00c Data: 4171 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 48 Region 0: Memory at b561b000 (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: 00000000fee0f00c Data: 41c1 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: 32, Cache Line Size: 64 bytes Interrupt: pin A routed to IRQ 49 Region 0: Memory at b5614000 (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: 00000000fee0e00c Data: 41d1 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: 00005000-00005fff Memory behind bridge: b5500000-b55fffff Prefetchable memory behind bridge: 00000000b5400000-00000000b54fffff 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 Disabled; 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: fee0f00c Data: 4141 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- 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=07, sec-latency=0 I/O behind bridge: 00004000-00004fff Memory behind bridge: b4000000-b4ffffff Prefetchable memory behind bridge: 00000000b2000000-00000000b2ffffff 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 Disabled; 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: fee0f00c Data: 4151 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- Kernel driver in use: pcieport Kernel modules: shpchp 00:1c.4 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 5 (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 A routed to IRQ 42 Bus: primary=00, secondary=08, subordinate=08, sec-latency=0 I/O behind bridge: 00003000-00003fff Memory behind bridge: b3000000-b3ffffff Prefetchable memory behind bridge: 00000000a0000000-00000000b1ffffff 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 #5, Speed 5GT/s, Width x4, ASPM L0s L1, Exit Latency L0s <512ns, L1 <16us ClockPM- Surprise- LLActRep+ BwNot+ ASPMOptComp- LnkCtl: ASPM L0s L1 Enabled; RCB 64 bytes Disabled- CommClk+ ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt- LnkSta: Speed 5GT/s, Width x4, TrErr- Train- SlotClk+ DLActive+ BWMgmt+ ABWMgmt- SltCap: AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug- Surprise- Slot #4, PowerLimit 25.000W; 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: -6dB, EqualizationComplete-, EqualizationPhase1- EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest- Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit- Address: fee0f00c Data: 4161 Capabilities: [90] Subsystem: Lenovo 8 Series PCI Express Root Port 5 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- 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- Interrupt: pin A routed to IRQ 0 Region 0: Memory at b5619000 (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- 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 44 Region 0: I/O ports at 6088 [size=8] Region 1: I/O ports at 6094 [size=4] Region 2: I/O ports at 6080 [size=8] Region 3: I/O ports at 6090 [size=4] Region 4: I/O ports at 6060 [size=32] Region 5: Memory at b5618000 (32-bit, non-prefetchable) [size=2K] Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit- Address: fee0400c Data: 4181 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 b561a000 (64-bit, non-prefetchable) [size=256] Region 4: I/O ports at 6040 [size=32] Kernel modules: i2c_i801 01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 0c) 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 46 Region 0: I/O ports at 5000 [size=256] Region 2: Memory at b5500000 (64-bit, non-prefetchable) [size=4K] Region 4: Memory at b5400000 (64-bit, 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: 00000000fee0f00c Data: 41a1 Capabilities: [70] Express (v2) Endpoint, MSI 01 DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <512ns, L1 <64us ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset- 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 Disabled; 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 Unknown small resource type 00, will not decode more. Kernel driver in use: r8169 Kernel modules: r8169 02:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5229 PCI Express Card Reader (rev 01) Subsystem: Lenovo RTS5229 PCI Express Card Reader Physical Slot: 3 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 45 Region 0: Memory at b4000000 (32-bit, non-prefetchable) [size=4K] 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: 00000000fee0f00c Data: 4191 Capabilities: [70] Express (v2) Endpoint, MSI 00 DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s unlimited, L1 unlimited ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset- DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported- RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop- MaxPayload 128 bytes, MaxReadReq 512 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 Disabled; 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: Not Supported, TimeoutDis+, LTR-, OBFF Not Supported 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- Kernel driver in use: rtsx_pci Kernel modules: rtsx_pci 08:00.0 3D controller: NVIDIA Corporation GM107M [GeForce GTX 850M] (rev a2) Subsystem: Lenovo GeForce GTX 850A 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- Interrupt: pin A routed to IRQ 0 Region 0: Memory at b3000000 (32-bit, non-prefetchable) [disabled] [size=16M] Region 1: Memory at a0000000 (64-bit, prefetchable) [disabled] [size=256M] Region 3: Memory at b0000000 (64-bit, prefetchable) [disabled] [size=32M] Region 5: I/O ports at 3000 [disabled] [size=128] Expansion ROM at <ignored> [disabled] Capabilities: [60] 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: [68] MSI: Enable- Count=1/1 Maskable- 64bit+ Address: 0000000000000000 Data: 0000 Capabilities: [78] Express (v2) Endpoint, MSI 00 DevCap: MaxPayload 256 bytes, PhantFunc 0, Latency L0s unlimited, L1 <64us ExtTag+ AttnBtn- AttnInd- PwrInd- RBE+ FLReset- DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported- RlxdOrd+ ExtTag+ PhantFunc- AuxPwr- NoSnoop+ MaxPayload 128 bytes, MaxReadReq 512 bytes DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr- TransPend- LnkCap: Port #0, Speed 8GT/s, Width x16, ASPM L0s L1, Exit Latency L0s <512ns, L1 <4us ClockPM+ Surprise- LLActRep- BwNot- ASPMOptComp+ LnkCtl: ASPM L0s L1 Enabled; RCB 64 bytes Disabled- CommClk+ ExtSynch- ClockPM+ AutWidDis- BWInt- AutBWInt- LnkSta: Speed 5GT/s, Width x4, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt- DevCap2: Completion Timeout: Range AB, TimeoutDis+, LTR+, OBFF Via message DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR+, OBFF Disabled LnkCtl2: Target Link Speed: 8GT/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- Kernel modules: nvidiafb, nouveau [7.6.] SCSI information (from /proc/scsi/scsi) (from running 4.2) Attached devices: Host: scsi0 Channel: 00 Id: 00 Lun: 00 Vendor: ATA Model: ST1000LM014-1EJ1 Rev: LIV6 Type: Direct-Access 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): Might not be relevant, but: The system also does not power off (nor restart) on shutdown, I need to physically press the power key, and it never has done with any of the kernels I've tried. It does restart with ctrl+alt+delete from grub though. Reported at https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1463422 Lenovo's site has a BIOS update for Broadwell systems, but there is nothing listed for Haswell. [X.] Other notes, patches, fixes, workarounds: I unfortunately know of no workarounds other than sticking with 4.2. Please let me know if there's any more information I should upload.
This is not an ext4 issue. It could be a problem with how the kernel was configured. It could be a hardware issue; it could be many things. But the problem seems to be that the root device is not getting detected, so this is before the file system gets involved. Part of the problem is that hardware support issues are one of the things that take a quite a lot of time to try to resolve remotely, especially if the user doesn't know how to get the necessary debugging information, and upstream developers are all volunteers when it comes to giving support to random end users. Normally this is work that gets done by distributions, especially if they are getting paid support $$$. But they don't want to support anything other than their standard kernel. You can find kernel folks who also have a particular hardware, or something similar, and they will help on a volunteer basis. The problem is while many of us will have Thinkpads (for example), many fewer kernel developers are likely to have come across an All-in-one Lenovo A740 desktop. This sort of problem is much better handled by someone who knows how to get the necessary debugging information (the kernel configuration used to build the kernel image you are trying to use, and the kernel dmesg messages during the boot process, etc.). So if you are near a local Linux User's Group, that might be a good place to try to ask for help. I will say that my Haswell-based Lenovo Thinkpad T540p works just fine with upstream kernels, so my guess is that it's mostly a kernel configuration issue, possibly combined with needing to make changes in the BIOS settings. So there's a good chance this isn't a kernel bug at all.
Created attachment 216681 [details] kernel config 4.3.0-040300-generic config of lowest tested not-booting kernel version
Created attachment 216691 [details] kernel config 4.6.0-040600rc6-generic kernel config of highest tested (not-booting) kernel version
Created attachment 216701 [details] kernel config 4.2.8-040208-generic kernel config of highest tested *booting* kernel
Thanks for taking the time to comment :) https://help.ubuntu.com/community/Kernel/Compile says /boot/config* are the kernel configurations used to create the .deb's of the kernel's (which I got from http://kernel.ubuntu.com/~kernel-ppa/mainline/), so I attached those at least. Maybe there's something relevant in the change from 4.2.8 to 4.3 (that didn't change back in 4.6)? I did find some tips on https://wiki.archlinux.org/index.php/Boot_debugging and http://elinux.org/Kernel_Debugging_Tips – I'll try to figure out how to get a detailed log of the failing boot, and see if there are other kernel images that might work.
https://ext4.wiki.kernel.org/index.php/UpgradeToExt4 says in section "Converting an ext3 filesystem to ext4" Note: The ext3 driver will be removed from the kernel in 4.3. Your root filesystem is ext3 . Maybe your second image drop is says root image is not found due to the above. Your options are like 1) Convert your data to ext4 2) Enable the ext3 filesystem driver explicitly in your menuconfig /xconfig After saving your .config diff with the older non-working configuration should look like ie added EXT3_FS and build a kernel -# CONFIG_EXT3_FS is not set +CONFIG_EXT3_FS=y +CONFIG_EXT3_FS_POSIX_ACL=y +CONFIG_EXT3_FS_SECURITY=y 3) Convert your data to ext2 and then try with the current non-working kernels. The first file in diff is working (4.2) and the second file is non working . # CONFIG_EXT2_FS is not set # CONFIG_EXT3_FS is not set CONFIG_EXT4_FS=y -CONFIG_EXT4_USE_FOR_EXT23=y +CONFIG_EXT4_USE_FOR_EXT2=y CONFIG_EXT4_FS_POSIX_ACL=y CONFIG_EXT4_FS_SECURITY=y CONFIG_EXT4_ENCRYPTION=m # CONFIG_DEBUG_BLOCK_EXT_DEVT is not set Looks like you have removed in EXT23 in your config and used it as EXT2 . This is for first file as (4.2.) and 4.6 as the second file (.config). # CONFIG_EXT2_FS is not set # CONFIG_EXT3_FS is not set CONFIG_EXT4_FS=y -CONFIG_EXT4_USE_FOR_EXT23=y +CONFIG_EXT4_USE_FOR_EXT2=y CONFIG_EXT4_FS_POSIX_ACL=y CONFIG_EXT4_FS_SECURITY=y CONFIG_EXT4_ENCRYPTION=m
The ext4 file system will happily mount file systems that are intended for ext2 and ext3. That is, ext4 supports a superset of the features supported by the ext2 and ext3 file system implementations. The CONFIG_EXT4_USE_FOR_EXT23 (before ext3 dropped was dropped) and CONFIG_EXT4_USE_FOR_EXT2 (after the ext3 driver was dropped) merely determines whether or not ext4 claims to be the ext2 or ext3 drivers. This matters only if the file system type is explicitly used in the mount command (e.g., "mount -t ext3 ...") or if you are mounting a non-root file system in /etc/fstab. Now, the distribution is doing something wierd with initramfs, so it's possible this is the cause of the issue, but when the kernel is mounting the root file system it will try using all of the file systems available to it to try to mount it. Furthermore the error message of not being able to find the file system with the specific UUID isn't the error message in the boot logs that would indicate that the problem was that the initramfs was trying to mount with ext3 and failed to find it. Still, if you want to try compiling with CONFIG_EXT4_USE_FOR_EXT2, that certainly wouldn't hurt and would probably help once you get the system working.
Thanks for the information and looks like it has nothing to do with code, atleast i could simulate the ALERT UUID= with a wrong hex char in kernel command line root=UUID and i get the same error. Also OP already tried with CONFIG_EXT4_USE_FOR_EXT2 and it doesn't work for him as per the diff in this .configs. output of command blkid from the initramfs shell would definitely help in figuring out more about this problem.
Hi Kevin, Can you please get the required output or close the bug so that we can either fix it if required or it is an issue that is considered to be resolved by you.
Sorry for the late reply – I still haven't been able to get keyboard working in initramfs, so not much more useful information :( I did try running blkid from an initramfs script: $ cat /etc/initramfs-tools/scripts/init-premount/kbu-blkid #!/bin/sh PREREQ="" prereqs() { echo "$PREREQ" } case $1 in prereqs) prereqs exit 0 ;; esac echo "KBU" blkid echo "/KBU" $ sudo update-initramfs -u update-initramfs: Generating /boot/initrd.img-4.6.0-040600rc6-generic but that just shows running /scripts/init-premount ... KBU /KBU as if the "blkid" command had no output. Is there something more useful I could put in there? Would it be useful at all to compile a kernel with debug symbols as in https://wiki.ubuntu.com/Kernel/BuildYourOwnKernel#Debug_Symbols or if I change some other configuration options? (I don't really know what I should change though, since CONFIG_EXT4_USE_FOR_EXT2 is already tested as per the config diff).
There are 2 things. 1) You don't need to compile a kernel with debug symbols as of now or change any configuration. This doesn't seem something related to kernel configuration. 2) The images you posted in the bug report like drop.jpg Begin: Waiting for root file system ... Begin: Running /scripts/local-block ... done. Begin: Running /scripts/local-block ... done. Begin: Running /scripts/local-block ... done. […] done. Gave up waiting for root device. and drops me into an (initramfs) shell When you drop into (initramfs) shell, if you could get the /sbin/blkid output it would be great. It is strange that the keyboard doesn't work . I hope you have compiled the kernel after make config/menuconfig . a) make b) make modules_install c) make install Step (b) is missed sometimes by many. It installs the necessary drivers in /lib/modules/`uname -r` and them puts them in initramfs. So one possible reason is missing make modules_install. The size of initrd.x.y.img should easily tell you that. lsinitramfs /boot/initrd.img-4.6.0 should have the necessary modules like usbkbd.ko. In my case. lsinitramfs /boot/initrd.img-4.6.0+ | grep usbkbd lib/modules/4.6.0+/kernel/drivers/hid/usbhid/usbkbd.ko I guess it would be helpful to have these as well . I'm guess blkid is not returning anything could also mean your block layer disk is not being detected or something wrong. echo "KBU" cat /proc/partitions /sbin/blkid cat /proc/cmdline dmesg | grep -i blocks echo "/KBU"
Created attachment 218671 [details] phone-image of output from initramfs-script This is the updated script that lead to the output in the attachment: $ cat /etc/initramfs-tools/scripts/init-premount/kbu-blkid #!/bin/sh PREREQ="" prereqs() { echo "$PREREQ" } case $1 in prereqs) prereqs exit 0 ;; esac echo "KBU" echo 'cat /proc/partitions' cat /proc/partitions echo '/sbin/blkid' /sbin/blkid echo 'cat /proc/cmdline' cat /proc/cmdline echo 'dmesg | grep -i blocks' dmesg | grep -i blocks echo "/KBU"
Your block devices are not being detected due to some problem. Maybe the driver for it is not getting loaded. Can you post the complete dmesg from 4.2 working ? In the initramfs pre mount scripts Instead of dmesg | grep -i blocks you can add dmesg | grep -i achi dmesg | grep -i scsi dmesg | grep -i sata dmesg | grep -i ata[0-4] cat /proc/scsi/scsi The below device is missing in your 4.6 . Below is your 4.2 [7.6.] SCSI information (from /proc/scsi/scsi) (from running 4.2) Attached devices: Host: scsi0 Channel: 00 Id: 00 Lun: 00 Vendor: ATA Model: ST1000LM014-1EJ1 Rev: LIV6 Type: Direct-Access ANSI SCSI revision: 05
Created attachment 218791 [details] dmesg from 4.2.0-35-generic Here's the complete dmesg from 4.2.0 (am ssh-ing now; will get the initramfs dmesg's when I get back to the physical machine …)
Your 4.2 is a signed kernel where as the other two aren't (4.6 and 4.4). I hope secureboot is disabled in bios already. If not please try that also.
If the ahci part fails ie dmesg | grep -i ahci produces no output, then you need to include in /etc/initramfs-tools/modules ahci libahci and then run update-initramfs -u
Created attachment 218851 [details] phone-image of initramfs-script w/ahci, scsi dmesg's, 4.6 $ cat /etc/initramfs-tools/scripts/init-premount/kbu-blkid #!/bin/sh PREREQ="" prereqs() { echo "$PREREQ" } case $1 in prereqs) prereqs exit 0 ;; esac echo "KBU" echo 'cat /proc/partitions # gives:' cat /proc/partitions echo '/sbin/blkid # gives:' /sbin/blkid echo 'cat /proc/cmdline # gives:' cat /proc/cmdline echo 'dmesg | grep -i blocks # gives:' dmesg | grep -i blocks echo 'dmesg | grep -i ahci # gives:' dmesg | grep -i ahci echo 'dmesg | grep -i scsi # gives:' dmesg | grep -i scsi echo 'dmesg | grep -i sata # gives:' dmesg | grep -i sata echo 'dmesg | grep -i ata[0-4] # gives:' dmesg | grep -i ata[0-4] echo 'cat /proc/scsi/scsi # gives:' cat /proc/scsi/scsi echo "/KBU" $ cat /etc/initramfs-tools/modules # List of modules that you want to include in your initramfs. # They will be loaded at boot time in the order below. # # Syntax: module_name [args ...] # # You must run update-initramfs(8) to effect this change. # # Examples: # # raid1 # sd_mod ahci libahci
Created attachment 218861 [details] phone-image of initramfs-script w/ahci, scsi dmesg's, 4.4 signed Same script/modules as attachment 218851 [details], on linux-signed-image-4.4.0-22-generic from Ubuntu repos (so signing/secureboot seems irrelevant?)
Created attachment 218871 [details] phone-image of initramfs-script w/ahci, scsi dmesg's, 4.2.8 (the working one) Snatched an image as the text flew by in one of the working kernels, just for comparison. (The 4.2.0 I got through regular Ubuntu signed repos, but this 4.2.8 was from http://kernel.ubuntu.com/~kernel-ppa/mainline/ and has no corresponding "linux-signed-image".)
(In reply to Navin from comment #13) > Instead of dmesg | grep -i blocks > > you can add > > dmesg | grep -i achi I changed this to "ahci" – was that right?
Can youou have ahci modules present in your initramfs ? Mine returns like 1) lsinitramfs /boot/initrd.img-4.7.0-rc1+ | grep -i ahci lib/modules/4.7.0-rc1+/kernel/drivers/ata/ahci_platform.ko lib/modules/4.7.0-rc1+/kernel/drivers/ata/ahci.ko lib/modules/4.7.0-rc1+/kernel/drivers/ata/libahci.ko lib/modules/4.7.0-rc1+/kernel/drivers/ata/libahci_platform.ko lib/modules/4.7.0-rc1+/kernel/drivers/ata/acard-ahci.ko 2) If the above returns that it is present and loaded confirmed by grep -i ahci /proc/modules from your initramfs grep -i ahci /proc/modules ahci 36864 2 - Live 0xffffffffc0044000 libahci 32768 1 ahci, Live 0xffffffffc0015000 If (1) and (2) work as expected like described ie they are loaded and present. Please post the output of (1) and (2) what it returns in your case. 3) Then maybe something related to irq like described in https://bugzilla.kernel.org/show_bug.cgi?id=111211 where comment 7 says "It works with 'pci=routeirq' parameter" in kernel command line. I asked for this because your 4.2 dmesg showed something like [ 0.716610] ahci 0000:00:1f.2: version 3.0 [ 0.716620] ahci 0000:00:1f.2: can't find IRQ for PCI INT B; probably buggy MP table
re: 1) $ lsinitramfs /boot/initrd.img-4.4.0-22-generic |grep -i ahci lib/modules/4.4.0-22-generic/kernel/drivers/ata/ahci.ko lib/modules/4.4.0-22-generic/kernel/drivers/ata/libahci.ko lib/modules/4.4.0-22-generic/kernel/drivers/ata/acard-ahci.ko lib/modules/4.4.0-22-generic/kernel/drivers/ata/libahci_platform.ko lib/modules/4.4.0-22-generic/kernel/drivers/ata/ahci_platform.ko $ lsinitramfs /boot/initrd.img-4.6.0-040600rc6-generic |grep -i ahci lib/modules/4.6.0-040600rc6-generic/kernel/drivers/ata/ahci.ko lib/modules/4.6.0-040600rc6-generic/kernel/drivers/ata/libahci.ko lib/modules/4.6.0-040600rc6-generic/kernel/drivers/ata/acard-ahci.ko lib/modules/4.6.0-040600rc6-generic/kernel/drivers/ata/libahci_platform.ko lib/modules/4.6.0-040600rc6-generic/kernel/drivers/ata/ahci_platform.ko $ lsinitramfs /boot/initrd.img-4.2.8-040208-generic |grep -i ahci lib/modules/4.2.8-040208-generic/kernel/drivers/ata/ahci.ko lib/modules/4.2.8-040208-generic/kernel/drivers/ata/libahci.ko lib/modules/4.2.8-040208-generic/kernel/drivers/ata/acard-ahci.ko lib/modules/4.2.8-040208-generic/kernel/drivers/ata/libahci_platform.ko lib/modules/4.2.8-040208-generic/kernel/drivers/ata/ahci_platform.ko
1) First is Why does these lines get printed in 4.2 [ 0.716610] ahci 0000:00:1f.2: version 3.0 [ 0.716620] ahci 0000:00:1f.2: can't find IRQ for PCI INT B; probably buggy MP table where as in 4.4 and 4.6 you don't get to see even the "version 3.0". In your initramfs shell , you should try to see if ahci is actually loaded in /proc/modules 2) One more thing is i see in 4.2 you have this in dmesg libata version 3.00 loaded. I hope in 4.6 also you get that message. You can find it out in your initramfs scripts by doing dmesg | grep -i libata That should tell you that your modules are not loaded/good because of some changes or some other reason like corruption? At the end of initramfs you can do modprobe ahci and see that it prints lsmod | grep ahci That should tell you the reason why it is not printing those messages in dmesg.
Created attachment 219041 [details] phone-image of initramfs-script w/libata dmesg's, modprobe ahci, 4.6 It's the same for 4.4, and appending pci=routeirq had no effect :( What command can I use instead of lsmod after the modprobe? (is grep -i ahci /proc/modules equivalent? does initramfs modprobe accept --verbose?)
yes grep -i ahci /proc/modules would work . Running modprobe ahci should be fine . Then again grep -i ahci /proc/modules . dmesg | tail should show the last 10 lines and any error. If an error is thrown it should shown by the dmesg | tail. If it says successful and loaded.Atleast from your phone screenshots it appears that the failure is in this part.
Created attachment 219071 [details] phone-image initramfs "grep ahci /proc/modules" 4.6 where ahci in etc modules Here I had ahci and libahci in /etc/initramfs-tools/modules, and 4.6 prints the same from "grep ahci /proc/modules" before and after the modprobe (and still not booting). Nothing interesting I can see from dmesg|tail.
Created attachment 219081 [details] phone-image initramfs "grep ahci /proc/modules" 4.6 withOut ahci in etc modules As 219071, but without ahci\nlibahci in /etc/initramfs-tools/modules – here the first grep gives no ahci, but after a modprobe it is in /proc/modules. ("lsinitramfs /boot/initrd.img-4.6.0-040600rc6-generic |grep -i ahci" is identical whether ahci is in /etc/initramfs-tools/modules)
I get a similar error about ahci "used by field" as 0 only in Virtual Machines like qemu . I assume yours is on bare hardware. Maybe bios mode is set to IDE that is why AHCI is not detected. If you change from IDE to AHCI does it work ? If it still doesn't work Well can you take the latest 4.7 and if that also doesn't work you should contact ahci.c - AHCI SATA support Maintained by: Tejun Heo <tj@kernel.org> Please ALWAYS copy linux-ide@vger.kernel.org on emails. saying you have the latest 4.7 mainline . I guess the issue could be easily resolved by the authors.
Created attachment 219091 [details] BIOS showing AHCI mode and when 4.2.0 is booted I get $ lspci |grep -i sata 00:1f.2 SATA controller: Intel Corporation 8 Series SATA Controller 1 [AHCI mode] (rev 04) $ dmesg |grep ahci [ 0.719414] ahci 0000:00:1f.2: version 3.0 [ 0.719425] ahci 0000:00:1f.2: can't find IRQ for PCI INT B; probably buggy MP table [ 0.735712] ahci 0000:00:1f.2: AHCI 0001.0300 32 slots 4 ports 6 Gbps 0x1 impl SATA mode [ 0.737592] ahci 0000:00:1f.2: flags: 64bit ncq pm led clo only pio slum part deso sadm sds apst [ 0.739623] scsi host0: ahci [ 0.745463] scsi host1: ahci [ 0.747706] scsi host2: ahci [ 0.749662] scsi host3: ahci so I'll try 4.7
Created attachment 219181 [details] phone-image initramfs 4.7 This was without ahci/libahci in /etc/initramfs-tools/modules. Doesn't seem too different from attachemnt 219081 except that /proc/scsi/scsi doesn't exist (though maybe it's created after modprobing; haven't tried 4.7 with ahci/libahci in /etc/initramfs-tools/modules yet). Thanks so much for your help Navin; getting in touch with the ide/ahci list now.