Created attachment 289813 [details] Kernel config file [1.] [2.] Full description of the problem/report: After an iwlwifi "crash" (I'm not sure of the proper vocabulary for driver errors like those) (reported in bug 207409 ) a kworker process start taking 100% (or close to 100%) on a CPU. The kworker process is always named "kworker/u8:x+phy0" where x is an number < 100 (so far). Here is a the information from `top` on that process : PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 48162 root 20 0 0 0 0 R 99.3 0.0 30:55.78 kworker/u8:68+phy0 Once this has happened, all network related process (whether they were already running or launched after the hangs and are unkillable, including sudo (I believe it needs to query the hostname ?). That prevented me to examine the stack in /proc/KWORKER/stack. The kernel logs contains messages about blocked tasks (both userspace progams and kworker blocking for more than 122/245 seconds) [ 4671.902363] ol-mgautier kernel: INFO: task kworker/0:2:28277 blocked for more than 122 seconds. [ 4671.902364] ol-mgautier kernel: Tainted: G W 5.7.4-arch1-1 #1 [ 4671.902365] ol-mgautier kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 4671.902366] ol-mgautier kernel: kworker/0:2 D 0 28277 2 0x80004080 [ 4671.902370] ol-mgautier kernel: Workqueue: ipv6_addrconf addrconf_verify_work [ 4671.902371] ol-mgautier kernel: Call Trace: [ 4671.902373] ol-mgautier kernel: __schedule+0x2a5/0x8c0 [ 4671.902375] ol-mgautier kernel: schedule+0x46/0xf0 [ 4671.902377] ol-mgautier kernel: schedule_preempt_disabled+0x14/0x20 [ 4671.902379] ol-mgautier kernel: __mutex_lock.constprop.0+0x180/0x510 The call trace for each of this message has the same first 4 lines (exactly identical except for timestamp) for every hanged task, so I suppose the problem is related to preemption and a mutex not released (wild guessing). The solution to get back to a working system is to hard reboot the computer. Soft reboot does not work network related services do not stop and can't be killed. [3.] Keywords (i.e., modules, networking, kernel): network, firmware crash, deadlock, kworker [4.] Kernel information [4.1.] Kernel version (from /proc/version): Linux version 5.7.4-arch1-1 (linux@archlinux) (gcc version 10.1.0 (GCC), GNU ld (GNU Binutils) 2.34.0) #1 SMP PREEMPT Thu, 18 Jun 2020 16:01:07 +0000 [4.2.] Kernel .config file: As attachment [5.] Most recent kernel version which did not have the bug: Not sure. I see this for several months, but due to the erratic nature the first few times I just rebooted and call it a day. I think it has happened at least since 5.5, and probably earlier. [6.] Output of Oops.. message (if applicable) with symbolic information resolved (see Documentation/admin-guide/bug-hunting.rst) Not applicable [7.] A small shell script or example program which triggers the problem (if possible) Can't reliably reproduce. However, maybe I could if I had a way to reliably reproduce bug 207409 . Or is anyone aware of a way to purposely trigger this Microcode SW error ? [8.] Environment All the following info are from after I rebooted. I'll try to get them when the bug is happening next time. [8.1.] Software (add the output of the ver_linux script here) If some fields are empty or look unusual you may have an old version. Compare to the current minimal requirements in Documentation/Changes. Linux ol-mgautier 5.7.4-arch1-1 #1 SMP PREEMPT Thu, 18 Jun 2020 16:01:07 +0000 x86_64 GNU/Linux GNU C 10.1.0 GNU Make 4.3 Binutils 2.34.0 Util-linux 2.35.2 Mount 2.35.2 Module-init-tools 27 E2fsprogs 1.45.6 Xfsprogs 5.6.0 Bison 3.6.4 Flex 2.6.4 Linux C++ Library 6.0.28 Linux C Library 2.31 Dynamic linker (ldd) 2.31 Procps 3.3.16 Kbd 2.2.0 Console-tools 2.2.0 Sh-utils 8.32 Udev 245 Modules Loaded 8021q ac acpi_thermal_rel aesni_intel agpgart atkbd battery ccm cec cfg80211 cmdlinepart coretemp cqhci crc16 crc32c_generic crc32c_intel crc32_pclmul crct10dif_pclmul cryptd crypto_simd dcdbas dell_laptop dell_rbtn dell_smbios dell_smm_hwmon dell_smo8800 dell_wmi dell_wmi_descriptor dm_crypt dm_mod drm drm_kms_helper e1000e ehci_hcd ehci_pci evdev ext4 fat fb_sys_fops garp ghash_clmulni_intel glue_helper i2c_algo_bit i2c_i801 i8042 i915 input_leds int3400_thermal int3402_thermal int3403_thermal int340x_thermal_zone intel_cstate intel_gtt intel_powerclamp intel_rapl_common intel_rapl_msr intel_rapl_perf intel_soc_dts_iosf intel_spi intel_spi_platform intel_uncore ip_tables irqbypass iTCO_vendor_support iTCO_wdt iwlmvm iwlwifi jbd2 joydev kvm kvm_intel ledtrig_audio libarc4 libps2 llc lpc_ich mac80211 mac_hid mbcache mc mei mei_hdcp mei_me mei_wdt mmc_core mousedev mrp mtd mxm_wmi nls_cp437 nls_iso8859_1 nouveau ofpart parport parport_pc pcspkr ppdev processor_thermal_device psmouse rc_core rfkill rng_core sdhci sdhci_pci serio serio_raw 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_intel_dspcfg snd_pcm snd_timer soundcore sparse_keymap spi_nor stp syscopyarea sysfillrect sysimgblt tpm tpm_tis tpm_tis_core ttm uvcvideo vfat videobuf2_common videobuf2_memops videobuf2_v4l2 videobuf2_vmalloc videodev wmi wmi_bmof x86_pkg_temp_thermal xhci_hcd xhci_pci x_tables [8.2.] Processor information (from /proc/cpuinfo): processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 61 model name : Intel(R) Core(TM) i5-5300U CPU @ 2.30GHz stepping : 4 microcode : 0x2f cpu MHz : 802.696 cache size : 3072 KB physical id : 0 siblings : 4 core id : 0 cpu cores : 2 apicid : 0 initial apicid : 0 fpu : yes fpu_exception : yes cpuid level : 20 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 smx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm 3dnowprefetch cpuid_fault epb invpcid_single pti ssbd ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid ept_ad fsgsbase tsc_adjust bmi1 hle avx2 smep bmi2 erms invpcid rtm rdseed adx smap intel_pt xsaveopt dtherm ida arat pln pts md_clear flush_l1d vmx flags : vnmi preemption_timer invvpid ept_x_only ept_ad ept_1gb flexpriority tsc_offset vtpr mtf vapic ept vpid unrestricted_guest ple shadow_vmcs bugs : cpu_meltdown spectre_v1 spectre_v2 spec_store_bypass l1tf mds swapgs taa itlb_multihit srbds bogomips : 4591.54 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 : 61 model name : Intel(R) Core(TM) i5-5300U CPU @ 2.30GHz stepping : 4 microcode : 0x2f cpu MHz : 833.578 cache size : 3072 KB physical id : 0 siblings : 4 core id : 1 cpu cores : 2 apicid : 2 initial apicid : 2 fpu : yes fpu_exception : yes cpuid level : 20 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 smx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm 3dnowprefetch cpuid_fault epb invpcid_single pti ssbd ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid ept_ad fsgsbase tsc_adjust bmi1 hle avx2 smep bmi2 erms invpcid rtm rdseed adx smap intel_pt xsaveopt dtherm ida arat pln pts md_clear flush_l1d vmx flags : vnmi preemption_timer invvpid ept_x_only ept_ad ept_1gb flexpriority tsc_offset vtpr mtf vapic ept vpid unrestricted_guest ple shadow_vmcs bugs : cpu_meltdown spectre_v1 spectre_v2 spec_store_bypass l1tf mds swapgs taa itlb_multihit srbds bogomips : 4591.54 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 : 61 model name : Intel(R) Core(TM) i5-5300U CPU @ 2.30GHz stepping : 4 microcode : 0x2f cpu MHz : 812.599 cache size : 3072 KB physical id : 0 siblings : 4 core id : 0 cpu cores : 2 apicid : 1 initial apicid : 1 fpu : yes fpu_exception : yes cpuid level : 20 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 smx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm 3dnowprefetch cpuid_fault epb invpcid_single pti ssbd ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid ept_ad fsgsbase tsc_adjust bmi1 hle avx2 smep bmi2 erms invpcid rtm rdseed adx smap intel_pt xsaveopt dtherm ida arat pln pts md_clear flush_l1d vmx flags : vnmi preemption_timer invvpid ept_x_only ept_ad ept_1gb flexpriority tsc_offset vtpr mtf vapic ept vpid unrestricted_guest ple shadow_vmcs bugs : cpu_meltdown spectre_v1 spectre_v2 spec_store_bypass l1tf mds swapgs taa itlb_multihit srbds bogomips : 4591.54 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 : 61 model name : Intel(R) Core(TM) i5-5300U CPU @ 2.30GHz stepping : 4 microcode : 0x2f cpu MHz : 855.175 cache size : 3072 KB physical id : 0 siblings : 4 core id : 1 cpu cores : 2 apicid : 3 initial apicid : 3 fpu : yes fpu_exception : yes cpuid level : 20 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 smx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm 3dnowprefetch cpuid_fault epb invpcid_single pti ssbd ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid ept_ad fsgsbase tsc_adjust bmi1 hle avx2 smep bmi2 erms invpcid rtm rdseed adx smap intel_pt xsaveopt dtherm ida arat pln pts md_clear flush_l1d vmx flags : vnmi preemption_timer invvpid ept_x_only ept_ad ept_1gb flexpriority tsc_offset vtpr mtf vapic ept vpid unrestricted_guest ple shadow_vmcs bugs : cpu_meltdown spectre_v1 spectre_v2 spec_store_bypass l1tf mds swapgs taa itlb_multihit srbds bogomips : 4591.54 clflush size : 64 cache_alignment : 64 address sizes : 39 bits physical, 48 bits virtual power management: [8.3.] Module information (from /proc/modules): 8021q 40960 0 - Live 0x0000000000000000 garp 16384 1 8021q, Live 0x0000000000000000 mrp 20480 1 8021q, Live 0x0000000000000000 stp 16384 1 garp, Live 0x0000000000000000 llc 16384 2 garp,stp, Live 0x0000000000000000 ccm 20480 3 - Live 0x0000000000000000 snd_hda_codec_hdmi 73728 1 - Live 0x0000000000000000 nouveau 2375680 0 - Live 0x0000000000000000 joydev 28672 0 - Live 0x0000000000000000 mousedev 24576 0 - Live 0x0000000000000000 i915 2617344 8 - Live 0x0000000000000000 x86_pkg_temp_thermal 20480 0 - Live 0x0000000000000000 intel_powerclamp 20480 0 - Live 0x0000000000000000 ofpart 20480 0 - Live 0x0000000000000000 coretemp 20480 0 - Live 0x0000000000000000 snd_hda_codec_realtek 135168 1 - Live 0x0000000000000000 cmdlinepart 16384 0 - Live 0x0000000000000000 intel_spi_platform 16384 0 - Live 0x0000000000000000 kvm_intel 327680 0 - Live 0x0000000000000000 uvcvideo 114688 0 - Live 0x0000000000000000 iwlmvm 462848 0 - Live 0x0000000000000000 snd_hda_codec_generic 98304 1 snd_hda_codec_realtek, Live 0x0000000000000000 videobuf2_vmalloc 20480 1 uvcvideo, Live 0x0000000000000000 videobuf2_memops 20480 1 videobuf2_vmalloc, Live 0x0000000000000000 snd_hda_intel 53248 4 - Live 0x0000000000000000 iTCO_wdt 16384 0 - Live 0x0000000000000000 ttm 118784 1 nouveau, Live 0x0000000000000000 intel_spi 24576 1 intel_spi_platform, Live 0x0000000000000000 dell_laptop 28672 0 - Live 0x0000000000000000 spi_nor 73728 1 intel_spi, Live 0x0000000000000000 mac80211 1040384 1 iwlmvm, Live 0x0000000000000000 ledtrig_audio 16384 3 snd_hda_codec_realtek,snd_hda_codec_generic,dell_laptop, Live 0x0000000000000000 mei_hdcp 24576 0 - Live 0x0000000000000000 videobuf2_v4l2 28672 1 uvcvideo, Live 0x0000000000000000 mei_wdt 16384 0 - Live 0x0000000000000000 intel_rapl_msr 20480 0 - Live 0x0000000000000000 snd_intel_dspcfg 28672 1 snd_hda_intel, Live 0x0000000000000000 iTCO_vendor_support 16384 1 iTCO_wdt, Live 0x0000000000000000 dell_wmi 20480 0 - Live 0x0000000000000000 i2c_algo_bit 16384 2 nouveau,i915, Live 0x0000000000000000 mtd 77824 6 ofpart,cmdlinepart,intel_spi,spi_nor, Live 0x0000000000000000 ppdev 24576 0 - Live 0x0000000000000000 dell_smbios 32768 2 dell_laptop,dell_wmi, Live 0x0000000000000000 libarc4 16384 1 mac80211, Live 0x0000000000000000 snd_hda_codec 167936 4 snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_codec_generic,snd_hda_intel, Live 0x0000000000000000 videobuf2_common 57344 2 uvcvideo,videobuf2_v4l2, Live 0x0000000000000000 mxm_wmi 16384 1 nouveau, Live 0x0000000000000000 wmi_bmof 16384 0 - Live 0x0000000000000000 kvm 835584 1 kvm_intel, Live 0x0000000000000000 nls_iso8859_1 16384 1 - Live 0x0000000000000000 nls_cp437 20480 1 - Live 0x0000000000000000 dell_wmi_descriptor 20480 2 dell_wmi,dell_smbios, Live 0x0000000000000000 sparse_keymap 16384 1 dell_wmi, Live 0x0000000000000000 drm_kms_helper 258048 2 nouveau,i915, Live 0x0000000000000000 irqbypass 16384 1 kvm, Live 0x0000000000000000 intel_cstate 16384 0 - Live 0x0000000000000000 dcdbas 20480 1 dell_smbios, Live 0x0000000000000000 vfat 24576 1 - Live 0x0000000000000000 iwlwifi 393216 1 iwlmvm, Live 0x0000000000000000 intel_uncore 159744 0 - Live 0x0000000000000000 fat 86016 1 vfat, Live 0x0000000000000000 snd_hda_core 106496 5 snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_codec_generic,snd_hda_intel,snd_hda_codec, Live 0x0000000000000000 dell_smm_hwmon 24576 0 - Live 0x0000000000000000 cec 65536 2 i915,drm_kms_helper, Live 0x0000000000000000 videodev 274432 3 uvcvideo,videobuf2_v4l2,videobuf2_common, Live 0x0000000000000000 intel_rapl_perf 16384 0 - Live 0x0000000000000000 snd_hwdep 16384 1 snd_hda_codec, Live 0x0000000000000000 rc_core 61440 1 cec, Live 0x0000000000000000 snd_pcm 147456 4 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hda_core, Live 0x0000000000000000 intel_gtt 24576 1 i915, Live 0x0000000000000000 psmouse 184320 0 - Live 0x0000000000000000 cfg80211 897024 3 iwlmvm,mac80211,iwlwifi, Live 0x0000000000000000 snd_timer 45056 1 snd_pcm, Live 0x0000000000000000 pcspkr 16384 0 - Live 0x0000000000000000 mei_me 49152 2 - Live 0x0000000000000000 input_leds 16384 0 - Live 0x0000000000000000 syscopyarea 16384 1 drm_kms_helper, Live 0x0000000000000000 mc 61440 4 uvcvideo,videobuf2_v4l2,videobuf2_common,videodev, Live 0x0000000000000000 tpm_tis 16384 0 - Live 0x0000000000000000 sysfillrect 16384 1 drm_kms_helper, Live 0x0000000000000000 processor_thermal_device 24576 0 - Live 0x0000000000000000 tpm_tis_core 32768 1 tpm_tis, Live 0x0000000000000000 mei 126976 5 mei_hdcp,mei_wdt,mei_me, Live 0x0000000000000000 i2c_i801 36864 0 - Live 0x0000000000000000 snd 114688 16 snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_codec_generic,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_timer, Live 0x0000000000000000 e1000e 299008 0 - Live 0x0000000000000000 sysimgblt 16384 1 drm_kms_helper, Live 0x0000000000000000 lpc_ich 28672 0 - Live 0x0000000000000000 intel_rapl_common 32768 2 intel_rapl_msr,processor_thermal_device, Live 0x0000000000000000 tpm 77824 2 tpm_tis,tpm_tis_core, Live 0x0000000000000000 fb_sys_fops 16384 1 drm_kms_helper, Live 0x0000000000000000 soundcore 16384 1 snd, Live 0x0000000000000000 intel_soc_dts_iosf 20480 1 processor_thermal_device, Live 0x0000000000000000 rng_core 16384 1 tpm, Live 0x0000000000000000 battery 20480 0 - Live 0x0000000000000000 int3403_thermal 16384 0 - Live 0x0000000000000000 parport_pc 53248 0 - Live 0x0000000000000000 dell_rbtn 20480 0 - Live 0x0000000000000000 int3402_thermal 16384 0 - Live 0x0000000000000000 parport 61440 2 ppdev,parport_pc, Live 0x0000000000000000 dell_smo8800 20480 0 - Live 0x0000000000000000 wmi 36864 6 nouveau,dell_wmi,dell_smbios,mxm_wmi,wmi_bmof,dell_wmi_descriptor, Live 0x0000000000000000 int340x_thermal_zone 16384 3 processor_thermal_device,int3403_thermal,int3402_thermal, Live 0x0000000000000000 evdev 28672 41 - Live 0x0000000000000000 rfkill 28672 5 dell_laptop,cfg80211,dell_rbtn, Live 0x0000000000000000 int3400_thermal 20480 0 - Live 0x0000000000000000 acpi_thermal_rel 16384 1 int3400_thermal, Live 0x0000000000000000 ac 16384 0 - Live 0x0000000000000000 mac_hid 16384 0 - Live 0x0000000000000000 drm 581632 8 nouveau,i915,ttm,drm_kms_helper, Live 0x0000000000000000 agpgart 53248 4 nouveau,ttm,intel_gtt,drm, Live 0x0000000000000000 ip_tables 36864 0 - Live 0x0000000000000000 x_tables 53248 1 ip_tables, Live 0x0000000000000000 ext4 798720 2 - Live 0x0000000000000000 crc32c_generic 16384 0 - Live 0x0000000000000000 crc16 16384 1 ext4, Live 0x0000000000000000 mbcache 16384 1 ext4, Live 0x0000000000000000 jbd2 139264 1 ext4, Live 0x0000000000000000 dm_crypt 53248 1 - Live 0x0000000000000000 dm_mod 163840 12 dm_crypt, Live 0x0000000000000000 serio_raw 20480 0 - Live 0x0000000000000000 atkbd 36864 0 - Live 0x0000000000000000 libps2 20480 2 psmouse,atkbd, Live 0x0000000000000000 crct10dif_pclmul 16384 1 - Live 0x0000000000000000 crc32_pclmul 16384 0 - Live 0x0000000000000000 crc32c_intel 24576 4 - Live 0x0000000000000000 ghash_clmulni_intel 16384 0 - Live 0x0000000000000000 aesni_intel 368640 4 - Live 0x0000000000000000 crypto_simd 16384 1 aesni_intel, Live 0x0000000000000000 cryptd 24576 3 ghash_clmulni_intel,crypto_simd, Live 0x0000000000000000 glue_helper 16384 1 aesni_intel, Live 0x0000000000000000 ehci_pci 20480 0 - Live 0x0000000000000000 sdhci_pci 61440 0 - Live 0x0000000000000000 ehci_hcd 98304 1 ehci_pci, Live 0x0000000000000000 cqhci 32768 1 sdhci_pci, Live 0x0000000000000000 xhci_pci 20480 0 - Live 0x0000000000000000 sdhci 77824 1 sdhci_pci, Live 0x0000000000000000 xhci_hcd 286720 1 xhci_pci, Live 0x0000000000000000 mmc_core 188416 3 sdhci_pci,cqhci,sdhci, Live 0x0000000000000000 i8042 32768 1 dell_laptop, Live 0x0000000000000000 serio 28672 6 psmouse,serio_raw,atkbd,i8042, Live 0x0000000000000000 [8.4.] Loaded driver and hardware information (/proc/ioports, /proc/iomem) /proc/ioports 0000-0000 : PCI Bus 0000:00 0000-0000 : dma1 0000-0000 : pic1 0000-0000 : timer0 0000-0000 : timer1 0000-0000 : keyboard 0000-0000 : keyboard 0000-0000 : rtc0 0000-0000 : dma page reg 0000-0000 : pic2 0000-0000 : dma2 0000-0000 : fpu 0000-0000 : pnp 00:00 0000-0000 : PNP0C09:00 0000-0000 : EC data 0000-0000 : PNP0C09:00 0000-0000 : EC cmd 0000-0000 : PCI conf1 0000-0000 : PCI Bus 0000:00 0000-0000 : pnp 00:00 0000-0000 : pnp 00:00 0000-0000 : ACPI PM1a_EVT_BLK 0000-0000 : ACPI PM1a_CNT_BLK 0000-0000 : ACPI PM_TMR 0000-0000 : iTCO_wdt.1.auto 0000-0000 : iTCO_wdt 0000-0000 : ACPI PM2_CNT_BLK 0000-0000 : pnp 00:02 0000-0000 : iTCO_wdt.1.auto 0000-0000 : iTCO_wdt 0000-0000 : ACPI GPE0_BLK 0000-0000 : PCI Bus 0000:03 0000-0000 : 0000:03:00.0 0000-0000 : 0000:00:02.0 0000-0000 : 0000:00:1f.3 0000-0000 : 0000:00:1f.2 0000-0000 : ahci 0000-0000 : 0000:00:19.0 0000-0000 : 0000:00:1f.2 0000-0000 : ahci 0000-0000 : 0000:00:1f.2 0000-0000 : ahci 0000-0000 : 0000:00:1f.2 0000-0000 : ahci 0000-0000 : 0000:00:1f.2 0000-0000 : ahci 0000-0000 : pnp 00:00 0000-0000 : pnp 00:00 0000-0000 : pnp 00:00 /proc/iomem 00000000-00000000 : Reserved 00000000-00000000 : System RAM 00000000-00000000 : Reserved 00000000-00000000 : System RAM 00000000-00000000 : Reserved 00000000-00000000 : PCI Bus 0000:00 00000000-00000000 : Video ROM 00000000-00000000 : Adapter ROM 00000000-00000000 : Adapter ROM 00000000-00000000 : System ROM 00000000-00000000 : System RAM 00000000-00000000 : Kernel code 00000000-00000000 : Kernel rodata 00000000-00000000 : Kernel data 00000000-00000000 : Kernel bss 00000000-00000000 : System RAM 00000000-00000000 : System RAM 00000000-00000000 : System RAM 00000000-00000000 : System RAM 00000000-00000000 : System RAM 00000000-00000000 : System RAM 00000000-00000000 : System RAM 00000000-00000000 : System RAM 00000000-00000000 : Reserved 00000000-00000000 : System RAM 00000000-00000000 : Reserved 00000000-00000000 : System RAM 00000000-00000000 : Reserved 00000000-00000000 : ACPI Tables 00000000-00000000 : System RAM 00000000-00000000 : ACPI Non-volatile Storage 00000000-00000000 : Reserved 00000000-00000000 : System RAM 00000000-00000000 : RAM buffer 00000000-00000000 : Reserved 00000000-00000000 : Graphics Stolen Memory 00000000-00000000 : PCI Bus 0000:00 00000000-00000000 : 0000:00:02.0 00000000-00000000 : PCI Bus 0000:03 00000000-00000000 : 0000:03:00.0 00000000-00000000 : 0000:03:00.0 00000000-00000000 : 0000:00:02.0 00000000-00000000 : PCI Bus 0000:03 00000000-00000000 : 0000:03:00.0 00000000-00000000 : 0000:03:00.0 00000000-00000000 : PCI Bus 0000:02 00000000-00000000 : 0000:02:00.0 00000000-00000000 : iwlwifi 00000000-00000000 : PCI Bus 0000:01 00000000-00000000 : 0000:01:00.0 00000000-00000000 : 0000:01:00.0 00000000-00000000 : mmc0 00000000-00000000 : 0000:00:19.0 00000000-00000000 : e1000e 00000000-00000000 : 0000:00:14.0 00000000-00000000 : xhci-hcd 00000000-00000000 : 0000:00:04.0 00000000-00000000 : 0000:00:1b.0 00000000-00000000 : ICH HD audio 00000000-00000000 : 0000:00:03.0 00000000-00000000 : ICH HD audio 00000000-00000000 : 0000:00:1f.3 00000000-00000000 : 0000:00:1f.2 00000000-00000000 : ahci 00000000-00000000 : 0000:00:1d.0 00000000-00000000 : ehci_hcd 00000000-00000000 : 0000:00:19.0 00000000-00000000 : e1000e 00000000-00000000 : 0000:00:16.0 00000000-00000000 : mei_me 00000000-00000000 : pnp 00:06 00000000-00000000 : pnp 00:06 00000000-00000000 : PCI MMCONFIG 0000 [bus 00-3f] 00000000-00000000 : Reserved 00000000-00000000 : pnp 00:06 00000000-00000000 : Reserved 00000000-00000000 : IOAPIC 0 00000000-00000000 : Reserved 00000000-00000000 : HPET 0 00000000-00000000 : PNP0103:00 00000000-00000000 : pnp 00:06 00000000-00000000 : pnp 00:06 00000000-00000000 : pnp 00:06 00000000-00000000 : Reserved 00000000-00000000 : pnp 00:06 00000000-00000000 : iTCO_wdt.1.auto 00000000-00000000 : iTCO_wdt.1.auto 00000000-00000000 : intel-spi 00000000-00000000 : intel-spi 00000000-00000000 : pnp 00:06 00000000-00000000 : 00:08 00000000-00000000 : pnp 00:06 00000000-00000000 : dmar0 00000000-00000000 : dmar1 00000000-00000000 : Local APIC 00000000-00000000 : Reserved 00000000-00000000 : Reserved 00000000-00000000 : INT0800:00 00000000-00000000 : pnp 00:06 00000000-00000000 : System RAM 00000000-00000000 : RAM buffer [8.5.] PCI information ('lspci -vvv' as root) 00:00.0 Host bridge: Intel Corporation Broadwell-U Host Bridge -OPI (rev 09) Subsystem: Dell Device 062b 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: bdw_uncore 00:02.0 VGA compatible controller: Intel Corporation HD Graphics 5500 (rev 09) (prog-if 00 [VGA controller]) DeviceName: Onboard IGD Subsystem: Dell Device 062b 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 52 Region 0: Memory at f5000000 (64-bit, non-prefetchable) [size=16M] Region 2: Memory at d0000000 (64-bit, prefetchable) [size=256M] Region 4: I/O ports at f000 [size=64] Expansion ROM at 000c0000 [virtual] [disabled] [size=128K] Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit- Address: fee00018 Data: 0000 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 Broadwell-U Audio Controller (rev 09) Subsystem: Dell Device 062b 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 54 Region 0: Memory at f733c000 (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: D3 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME- Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit- Address: fee00418 Data: 0000 Capabilities: [70] Express (v1) Root Complex Integrated Endpoint, MSI 00 DevCap: MaxPayload 128 bytes, PhantFunc 0 ExtTag- RBE- FLReset+ DevCtl: CorrErr- NonFatalErr- FatalErr- UnsupReq- RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop- FLReset- MaxPayload 128 bytes, MaxReadReq 128 bytes DevSta: CorrErr- NonFatalErr- FatalErr- UnsupReq- AuxPwr- TransPend- Kernel driver in use: snd_hda_intel Kernel modules: snd_hda_intel 00:04.0 Signal processing controller: Intel Corporation Broadwell-U Processor Thermal Subsystem (rev 09) Subsystem: Dell Device 062b 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 16 Region 0: Memory at f7330000 (64-bit, non-prefetchable) [size=32K] Capabilities: [90] MSI: Enable- Count=1/1 Maskable- 64bit- Address: 00000000 Data: 0000 Capabilities: [d0] 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: [e0] Vendor Specific Information: Len=0c <?> Kernel driver in use: proc_thermal Kernel modules: processor_thermal_device 00:14.0 USB controller: Intel Corporation Wildcat Point-LP USB xHCI Controller (rev 03) (prog-if 30 [XHCI]) Subsystem: Dell Device 062b 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 46 Region 0: Memory at f7320000 (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: 00000000fee002f8 Data: 0000 Kernel driver in use: xhci_hcd Kernel modules: xhci_pci 00:16.0 Communication controller: Intel Corporation Wildcat Point-LP MEI Controller #1 (rev 03) Subsystem: Dell Device 062b 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 49 Region 0: Memory at f7346000 (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: 00000000fee00378 Data: 0000 Kernel driver in use: mei_me Kernel modules: mei_me 00:19.0 Ethernet controller: Intel Corporation Ethernet Connection (3) I218-LM (rev 03) DeviceName: Onboard LAN Subsystem: Dell Device 062b 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 f7300000 (32-bit, non-prefetchable) [size=128K] Region 1: Memory at f7343000 (32-bit, non-prefetchable) [size=4K] Region 2: I/O ports at f080 [size=32] Capabilities: [c8] 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=1 PME- Capabilities: [d0] MSI: Enable+ Count=1/1 Maskable- 64bit+ Address: 00000000fee00358 Data: 0000 Capabilities: [e0] PCI Advanced Features AFCap: TP+ FLR+ AFCtrl: FLR- AFStatus: TP- Kernel driver in use: e1000e Kernel modules: e1000e 00:1b.0 Audio device: Intel Corporation Wildcat Point-LP High Definition Audio Controller (rev 03) Subsystem: Dell Device 062b 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 51 Region 0: Memory at f7338000 (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: 00000000fee003d8 Data: 0000 Kernel driver in use: snd_hda_intel Kernel modules: snd_hda_intel 00:1c.0 PCI bridge: Intel Corporation Wildcat Point-LP PCI Express Root Port #1 (rev e3) (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=01, subordinate=01, sec-latency=0 I/O behind bridge: 0000f000-00000fff [disabled] Memory behind bridge: f7200000-f72fffff [size=1M] Prefetchable memory behind bridge: 00000000fff00000-00000000000fffff [disabled] Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR- BridgeCtl: Parity- SERR+ NoISA- VGA- VGA16+ 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: CorrErr- NonFatalErr- FatalErr- UnsupReq- RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop- MaxPayload 128 bytes, MaxReadReq 128 bytes DevSta: CorrErr- NonFatalErr- FatalErr- UnsupReq- AuxPwr+ TransPend- LnkCap: Port #1, Speed 5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s <1us, L1 <16us 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 (downgraded), Width x1 (ok) TrErr- Train- SlotClk+ DLActive+ BWMgmt+ ABWMgmt- SltCap: AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug- Surprise- Slot #0, 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+ RootCap: CRSVisible- RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna+ CRSVisible- RootSta: PME ReqID 0000, PMEStatus- PMEPending- DevCap2: Completion Timeout: Range ABC, TimeoutDis+ NROPrPrP- LTR+ 10BitTagComp- 10BitTagReq- OBFF Not Supported, ExtFmt- EETLPPrefix- EmergencyPowerReduction Not Supported, EmergencyPowerReductionInit- FRS- LN System CLS Not Supported, TPHComp- ExtTPHComp- ARIFwd- AtomicOpsCap: Routing- 32bit- 64bit- 128bitCAS- DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis- LTR+ OBFF Disabled, ARIFwd- AtomicOpsCtl: ReqEn- EgressBlck- 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- Retimer- 2Retimers- CrosslinkRes: unsupported Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit- Address: fee00238 Data: 0000 Capabilities: [90] Subsystem: Dell Device 062b 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] Null 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=120us LTR1.2_Threshold=163840ns L1SubCtl2: T_PwrOn=10us Kernel driver in use: pcieport 00:1c.3 PCI bridge: Intel Corporation Wildcat Point-LP PCI Express Root Port #4 (rev e3) (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 43 Bus: primary=00, secondary=02, subordinate=02, sec-latency=0 I/O behind bridge: 0000f000-00000fff [disabled] Memory behind bridge: f7100000-f71fffff [size=1M] Prefetchable memory behind bridge: 00000000fff00000-00000000000fffff [disabled] Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR- BridgeCtl: Parity- SERR+ NoISA- VGA- VGA16+ 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: CorrErr- NonFatalErr- FatalErr- UnsupReq- RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop- MaxPayload 128 bytes, MaxReadReq 128 bytes DevSta: CorrErr- NonFatalErr- FatalErr- UnsupReq- 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 (downgraded), Width x1 (ok) 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+ RootCap: CRSVisible- RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna+ CRSVisible- RootSta: PME ReqID 0000, PMEStatus- PMEPending- DevCap2: Completion Timeout: Range ABC, TimeoutDis+ NROPrPrP- LTR+ 10BitTagComp- 10BitTagReq- OBFF Not Supported, ExtFmt- EETLPPrefix- EmergencyPowerReduction Not Supported, EmergencyPowerReductionInit- FRS- LN System CLS Not Supported, TPHComp- ExtTPHComp- ARIFwd- AtomicOpsCap: Routing- 32bit- 64bit- 128bitCAS- DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis- LTR+ OBFF Disabled, ARIFwd- AtomicOpsCtl: ReqEn- EgressBlck- 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- Retimer- 2Retimers- CrosslinkRes: unsupported Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit- Address: fee00278 Data: 0000 Capabilities: [90] Subsystem: Dell Device 062b 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] Null 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 00:1c.4 PCI bridge: Intel Corporation Wildcat Point-LP PCI Express Root Port #5 (rev e3) (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 44 Bus: primary=00, secondary=03, subordinate=03, sec-latency=0 I/O behind bridge: 0000e000-0000efff [size=4K] Memory behind bridge: f6000000-f70fffff [size=17M] Prefetchable memory behind bridge: 00000000e0000000-00000000f1ffffff [size=288M] Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR- BridgeCtl: Parity- SERR+ NoISA- VGA- VGA16+ 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: CorrErr- NonFatalErr- FatalErr- UnsupReq- RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop- MaxPayload 128 bytes, MaxReadReq 128 bytes DevSta: CorrErr- NonFatalErr- FatalErr- UnsupReq- 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 2.5GT/s (downgraded), Width x4 (ok) 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+ RootCap: CRSVisible- RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna+ CRSVisible- RootSta: PME ReqID 0000, PMEStatus- PMEPending- DevCap2: Completion Timeout: Range ABC, TimeoutDis+ NROPrPrP- LTR+ 10BitTagComp- 10BitTagReq- OBFF Not Supported, ExtFmt- EETLPPrefix- EmergencyPowerReduction Not Supported, EmergencyPowerReductionInit- FRS- LN System CLS Not Supported, TPHComp- ExtTPHComp- ARIFwd- AtomicOpsCap: Routing- 32bit- 64bit- 128bitCAS- DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis- LTR+ OBFF Disabled, ARIFwd- AtomicOpsCtl: ReqEn- EgressBlck- 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- Retimer- 2Retimers- CrosslinkRes: unsupported Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit- Address: fee00298 Data: 0000 Capabilities: [90] Subsystem: Dell Device 062b 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] Null 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=255us LTR1.2_Threshold=163840ns L1SubCtl2: T_PwrOn=10us Kernel driver in use: pcieport 00:1d.0 USB controller: Intel Corporation Wildcat Point-LP USB EHCI Controller (rev 03) (prog-if 20 [EHCI]) Subsystem: Dell Device 062b 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 21 Region 0: Memory at f7342000 (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 Kernel modules: ehci_pci 00:1f.0 ISA bridge: Intel Corporation Wildcat Point-LP LPC Controller (rev 03) Subsystem: Dell Device 062b 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 RAID bus controller: Intel Corporation 82801 Mobile SATA Controller [RAID mode] (rev 03) Subsystem: Dell Device 062b 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 45 Region 0: I/O ports at f0d0 [size=8] Region 1: I/O ports at f0c0 [size=4] Region 2: I/O ports at f0b0 [size=8] Region 3: I/O ports at f0a0 [size=4] Region 4: I/O ports at f060 [size=32] Region 5: Memory at f7341000 (32-bit, non-prefetchable) [size=2K] Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit- Address: fee002b8 Data: 0000 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 00:1f.3 SMBus: Intel Corporation Wildcat Point-LP SMBus Controller (rev 03) Subsystem: Dell Device 062b 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 255 Region 0: Memory at f7340000 (64-bit, non-prefetchable) [size=256] Region 4: I/O ports at f040 [size=32] Kernel modules: i2c_i801 01:00.0 SD Host controller: O2 Micro, Inc. SD/MMC Card Reader Controller (rev 01) (prog-if 01) Subsystem: Dell Device 062b 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 f7201000 (32-bit, non-prefetchable) [size=4K] Region 1: Memory at f7200000 (32-bit, non-prefetchable) [size=2K] Capabilities: [6c] 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: [48] MSI: Enable+ Count=1/1 Maskable+ 64bit+ Address: 00000000fee00318 Data: 0000 Masking: 00000000 Pending: 00000000 Capabilities: [80] Express (v2) Endpoint, MSI 00 DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <4us, L1 unlimited ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset- SlotPowerLimit 10.000W DevCtl: CorrErr- NonFatalErr- FatalErr- UnsupReq- RlxdOrd+ ExtTag- PhantFunc- AuxPwr+ NoSnoop+ MaxPayload 128 bytes, MaxReadReq 128 bytes DevSta: CorrErr- NonFatalErr+ FatalErr- UnsupReq- AuxPwr- TransPend- LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s <512ns, L1 unlimited 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 (ok), Width x1 (ok) TrErr- Train- SlotClk- DLActive- BWMgmt- ABWMgmt- DevCap2: Completion Timeout: Not Supported, TimeoutDis- NROPrPrP- LTR+ 10BitTagComp- 10BitTagReq- OBFF Not Supported, ExtFmt- EETLPPrefix- EmergencyPowerReduction Not Supported, EmergencyPowerReductionInit- FRS- TPHComp- ExtTPHComp- AtomicOpsCap: 32bit- 64bit- 128bitCAS- DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis- LTR+ OBFF Disabled, AtomicOpsCtl: ReqEn- 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- Retimer- 2Retimers- CrosslinkRes: unsupported 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- Capabilities: [230 v1] Latency Tolerance Reporting Max snoop latency: 3145728ns Max no snoop latency: 3145728ns Capabilities: [240 v1] L1 PM Substates L1SubCap: PCI-PM_L1.2+ PCI-PM_L1.1+ ASPM_L1.2+ ASPM_L1.1+ L1_PM_Substates+ PortCommonModeRestoreTime=120us PortTPowerOnTime=10us L1SubCtl1: PCI-PM_L1.2+ PCI-PM_L1.1+ ASPM_L1.2+ ASPM_L1.1+ T_CommonMode=0us LTR1.2_Threshold=163840ns L1SubCtl2: T_PwrOn=10us Kernel driver in use: sdhci-pci Kernel modules: sdhci_pci 02:00.0 Network controller: Intel Corporation Wireless 7265 (rev 59) Subsystem: Intel Corporation Dual Band Wireless-AC 7265 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 f7100000 (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: 00000000fee00398 Data: 0000 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: CorrErr- NonFatalErr- FatalErr- UnsupReq- RlxdOrd+ ExtTag- PhantFunc- AuxPwr+ NoSnoop+ FLReset- MaxPayload 128 bytes, MaxReadReq 128 bytes DevSta: CorrErr+ NonFatalErr- FatalErr- UnsupReq+ AuxPwr+ TransPend- LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L1, Exit Latency L1 <32us ClockPM+ Surprise- LLActRep- BwNot- ASPMOptComp+ LnkCtl: ASPM L1 Enabled; RCB 64 bytes, Disabled- CommClk+ ExtSynch- ClockPM+ AutWidDis- BWInt- AutBWInt- LnkSta: Speed 2.5GT/s (ok), Width x1 (ok) TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt- DevCap2: Completion Timeout: Range B, TimeoutDis+ NROPrPrP- LTR+ 10BitTagComp- 10BitTagReq- OBFF Via WAKE#, ExtFmt- EETLPPrefix- EmergencyPowerReduction Not Supported, EmergencyPowerReductionInit- FRS- TPHComp- ExtTPHComp- AtomicOpsCap: 32bit- 64bit- 128bitCAS- DevCtl2: Completion Timeout: 16ms to 55ms, TimeoutDis- LTR+ OBFF Disabled, AtomicOpsCtl: ReqEn- 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- Retimer- 2Retimers- CrosslinkRes: unsupported 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- AdvNonFatalErr- CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- AdvNonFatalErr+ AERCap: First Error Pointer: 00, ECRCGenCap- ECRCGenEn- ECRCChkCap- ECRCChkEn- MultHdrRecCap- MultHdrRecEn- TLPPfxPres- HdrLogCap- HeaderLog: 00000000 00000000 00000000 00000000 Capabilities: [140 v1] Device Serial Number 10-02-b5-ff-ff-9a-ea-61 Capabilities: [14c v1] Latency Tolerance Reporting Max snoop latency: 3145728ns Max no snoop latency: 3145728ns Capabilities: [154 v1] L1 PM Substates L1SubCap: PCI-PM_L1.2+ PCI-PM_L1.1+ ASPM_L1.2+ ASPM_L1.1+ L1_PM_Substates+ PortCommonModeRestoreTime=30us PortTPowerOnTime=60us L1SubCtl1: PCI-PM_L1.2+ PCI-PM_L1.1+ ASPM_L1.2+ ASPM_L1.1+ T_CommonMode=0us LTR1.2_Threshold=163840ns L1SubCtl2: T_PwrOn=60us Kernel driver in use: iwlwifi Kernel modules: iwlwifi 03:00.0 3D controller: NVIDIA Corporation GM108M [GeForce 830M] (rev a2) Subsystem: Dell Device 062b 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 53 Region 0: Memory at f6000000 (32-bit, non-prefetchable) [size=16M] Region 1: Memory at e0000000 (64-bit, prefetchable) [size=256M] Region 3: Memory at f0000000 (64-bit, prefetchable) [size=32M] Region 5: I/O ports at e000 [size=128] Expansion ROM at f7000000 [disabled] [size=512K] 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: 00000000fee003f8 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- SlotPowerLimit 25.000W DevCtl: CorrErr- NonFatalErr- FatalErr- UnsupReq- RlxdOrd+ ExtTag+ PhantFunc- AuxPwr- NoSnoop+ MaxPayload 128 bytes, MaxReadReq 512 bytes DevSta: CorrErr- NonFatalErr- FatalErr- UnsupReq- AuxPwr- TransPend- LnkCap: Port #0, Speed 5GT/s, Width x4, 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 2.5GT/s (downgraded), Width x4 (ok) TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt- DevCap2: Completion Timeout: Range AB, TimeoutDis+ NROPrPrP- LTR+ 10BitTagComp- 10BitTagReq- OBFF Via message, ExtFmt- EETLPPrefix- EmergencyPowerReduction Not Supported, EmergencyPowerReductionInit- FRS- TPHComp- ExtTPHComp- AtomicOpsCap: 32bit- 64bit- 128bitCAS- DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis- LTR+ OBFF Disabled, AtomicOpsCtl: ReqEn- LnkCap2: Supported Link Speeds: 2.5-8GT/s, Crosslink- Retimer- 2Retimers- DRS- 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- Retimer- 2Retimers- CrosslinkRes: unsupported 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- Capabilities: [250 v1] Latency Tolerance Reporting Max snoop latency: 3145728ns Max no snoop latency: 3145728ns Capabilities: [258 v1] L1 PM Substates L1SubCap: PCI-PM_L1.2+ PCI-PM_L1.1+ ASPM_L1.2+ ASPM_L1.1+ L1_PM_Substates+ PortCommonModeRestoreTime=255us PortTPowerOnTime=10us L1SubCtl1: PCI-PM_L1.2- PCI-PM_L1.1- ASPM_L1.2- ASPM_L1.1- T_CommonMode=0us LTR1.2_Threshold=0ns L1SubCtl2: T_PwrOn=10us Capabilities: [128 v1] Power Budgeting <?> Capabilities: [600 v1] Vendor Specific Information: ID=0001 Rev=1 Len=024 <?> Capabilities: [900 v1] Secondary PCI Express LnkCtl3: LnkEquIntrruptEn- PerformEqu- LaneErrStat: 0 Kernel driver in use: nouveau Kernel modules: nouveau [8.6.] SCSI information (from /proc/scsi/scsi) Attached devices: Host: scsi1 Channel: 00 Id: 00 Lun: 00 Vendor: ATA Model: SK hynix SC300 2 Rev: 0P00 Type: Direct-Access ANSI SCSI revision: 05 [8.7.] Other information that might be relevant to the problem (please look in /proc and include all information that you think to be relevant): N/D [X.] Other notes, patches, fixes, workarounds: Related bug reports : - bug 207409 : is the trigger - bug 205155 : show similar symptoms and stack trace, but only appears when using docking stations according to the reporter. - possibly relevant treads on lkml : https://lkml.org/lkml/2020/2/11/904 Same 4 lines on the top of the stack trace and same workqueue on one of the blocked kworker Workqueue: ipv6_addrconf addrconf_verify_work I should be able to compile a custom kernel with more debug options if needed and run it (and wait for the bug to appear), but at the moment I'm not sure which options I should enable for that. If someone could provide pointers on that I'll be happy to oblige.
Created attachment 289817 [details] full kernel log (on 5.7.4) Problem is visible in the log after the "Microcode SW error" line. Grep for "blocked for more".
Created attachment 289819 [details] full kernel log (on 5.7.2) Idem
Created attachment 289847 [details] bugfix Can you please test this patch? Thanks.
I'll do that and report next time I hit the bug. Or if I don't encounter it for some time.
First observations : Without the patch I had : [ 4949.427785] ol-mgautier kernel: wlp2s0: cannot understand ECSA IE operating class, 6, ignoring [ 4949.734984] ol-mgautier kernel: wlp2s0: cannot understand ECSA IE operating class, 6, ignoring [ 4949.837423] ol-mgautier kernel: wlp2s0: cannot understand ECSA IE operating class, 6, ignoring [ 4949.939766] ol-mgautier kernel: wlp2s0: cannot understand ECSA IE operating class, 6, ignoring [ 4950.042180] ol-mgautier kernel: wlp2s0: cannot understand ECSA IE operating class, 6, ignoring [ 4950.144818] ol-mgautier kernel: wlp2s0: cannot understand ECSA IE operating class, 6, ignoring [ 4950.247028] ol-mgautier kernel: wlp2s0: cannot understand ECSA IE operating class, 6, ignoring [ 4950.349444] ol-mgautier kernel: wlp2s0: cannot understand ECSA IE operating class, 6, ignoring [ 4950.451871] ol-mgautier kernel: wlp2s0: cannot understand ECSA IE operating class, 6, ignoring [ 4950.554169] ol-mgautier kernel: wlp2s0: cannot understand ECSA IE operating class, 6, ignoring [ 4950.656542] ol-mgautier kernel: wlp2s0: cannot understand ECSA IE operating class, 6, ignoring [ 4950.759173] ol-mgautier kernel: wlp2s0: cannot understand ECSA IE operating class, 6, ignoring [ 4950.861461] ol-mgautier kernel: wlp2s0: cannot understand ECSA IE operating class, 6, ignoring [ 4950.951656] ol-mgautier kernel: iwlwifi 0000:02:00.0: Microcode SW error detected. Restarting 0x2000000. With the patch I get : [ 2463.416871] ol-mgautier kernel: wlp2s0: cannot understand ECSA IE operating class, 5, ignoring [ 2463.479693] ol-mgautier kernel: wlp2s0: cannot understand ECSA IE operating class, 5, ignoring [ 2463.582114] ol-mgautier kernel: wlp2s0: cannot understand ECSA IE operating class, 5, ignoring [ 2463.684513] ol-mgautier kernel: wlp2s0: cannot understand ECSA IE operating class, 5, ignoring [ 2463.786857] ol-mgautier kernel: wlp2s0: cannot understand ECSA IE operating class, 5, ignoring [ 2463.889291] ol-mgautier kernel: wlp2s0: cannot understand ECSA IE operating class, 5, ignoring [ 2463.991695] ol-mgautier kernel: wlp2s0: cannot understand ECSA IE operating class, 5, ignoring [ 2464.094091] ol-mgautier kernel: wlp2s0: cannot understand ECSA IE operating class, 5, ignoring [ 2464.196514] ol-mgautier kernel: wlp2s0: cannot understand ECSA IE operating class, 5, ignoring [ 2464.298861] ol-mgautier kernel: wlp2s0: cannot understand ECSA IE operating class, 5, ignoring [ 2464.401293] ol-mgautier kernel: wlp2s0: cannot understand ECSA IE operating class, 5, ignoring [ 2464.503692] ol-mgautier kernel: wlp2s0: cannot understand ECSA IE operating class, 5, ignoring [ 2464.606061] ol-mgautier kernel: wlp2s0: cannot understand ECSA IE operating class, 5, ignoring [ 2464.708495] ol-mgautier kernel: wlp2s0: cannot understand ECSA IE operating class, 5, ignoring [ 2464.810896] ol-mgautier kernel: wlp2s0: cannot understand ECSA IE operating class, 5, ignoring [ 2464.913264] ol-mgautier kernel: wlp2s0: cannot understand ECSA IE operating class, 5, ignoring [ 2464.926904] ol-mgautier kernel: wlp2s0: driver channel switch failed, disconnecting [ 2466.330146] ol-mgautier kernel: wlp2s0: authenticate with 60:35:c0:22:08:36 So the ECSA stuff seems to not trigger the bug anymore. Is that relevant (since you changed the driver channel switch makes me thinks so) ?
Yes the CSA your AP sends seems bogus, so we decide to ignore it. No FW crash anymore? You reconnect afterwards?
Yep, no firmware crash. And yes, I reconnect (I didn't notice it right away but I was working online and did not noticed any disruption afterwards; and my imap synchronizer logs do not show any signs of not working 1 minutes after that log item ; so I think it's safe to suppose the wifi was correctly up (the rest of the log - with the patch) Jun 23 18:02:58 ol-mgautier kernel: wlp2s0: cannot understand ECSA IE operating class, 5, ignoring Jun 23 18:02:58 ol-mgautier kernel: wlp2s0: cannot understand ECSA IE operating class, 5, ignoring Jun 23 18:02:58 ol-mgautier kernel: wlp2s0: cannot understand ECSA IE operating class, 5, ignoring Jun 23 18:02:58 ol-mgautier kernel: wlp2s0: cannot understand ECSA IE operating class, 5, ignoring Jun 23 18:02:58 ol-mgautier kernel: wlp2s0: driver channel switch failed, disconnecting Jun 23 18:03:00 ol-mgautier kernel: wlp2s0: authenticate with 60:35:c0:22:08:36 Jun 23 18:03:00 ol-mgautier kernel: wlp2s0: send auth to 60:35:c0:22:08:36 (try 1/3) Jun 23 18:03:00 ol-mgautier kernel: wlp2s0: 60:35:c0:22:08:36 denied authentication (status 1) Jun 23 18:03:01 ol-mgautier kernel: wlp2s0: authenticate with 60:35:c0:22:08:36 Jun 23 18:03:01 ol-mgautier kernel: wlp2s0: send auth to 60:35:c0:22:08:36 (try 1/3) Jun 23 18:03:01 ol-mgautier kernel: wlp2s0: 60:35:c0:22:08:36 denied authentication (status 1) Jun 23 18:03:03 ol-mgautier kernel: wlp2s0: authenticate with 60:35:c0:22:08:35 Jun 23 18:03:03 ol-mgautier kernel: wlp2s0: send auth to 60:35:c0:22:08:35 (try 1/3) Jun 23 18:03:03 ol-mgautier kernel: wlp2s0: authenticated Jun 23 18:03:03 ol-mgautier kernel: wlp2s0: associate with 60:35:c0:22:08:35 (try 1/3) Jun 23 18:03:03 ol-mgautier kernel: wlp2s0: RX AssocResp from 60:35:c0:22:08:35 (capab=0x11 status=0 aid=2) Jun 23 18:03:03 ol-mgautier kernel: wlp2s0: associated Jun 23 18:03:03 ol-mgautier kernel: wlp2s0: Limiting TX power to 23 (23 - 0) dBm as advertised by 60:35:c0:22:08:35
Ok thanks. I'll let Luca drive the bug from here. Patch is pending review internally.