Bug 208285 - iwlwifi: 7265: BAD_COMMAND on CHANNEL_SWITCH_TIME_EVENT_CMD
Summary: iwlwifi: 7265: BAD_COMMAND on CHANNEL_SWITCH_TIME_EVENT_CMD
Status: ASSIGNED
Alias: None
Product: Drivers
Classification: Unclassified
Component: network-wireless-intel (show other bugs)
Hardware: x86-64 Linux
: P1 high
Assignee: DO NOT USE - assign "network-wireless-intel" component instead
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2020-06-22 15:13 UTC by Max Gautier
Modified: 2020-07-17 10:35 UTC (History)
4 users (show)

See Also:
Kernel Version: 5.7.4-arch1-1
Tree: Mainline
Regression: No


Attachments
Kernel config file (242.72 KB, text/plain)
2020-06-22 15:13 UTC, Max Gautier
Details
full kernel log (on 5.7.4) (226.58 KB, text/plain)
2020-06-22 15:21 UTC, Max Gautier
Details
full kernel log (on 5.7.2) (191.16 KB, text/plain)
2020-06-22 15:22 UTC, Max Gautier
Details
bugfix (5.11 KB, patch)
2020-06-23 11:46 UTC, Emmanuel Grumbach
Details | Diff

Description Max Gautier 2020-06-22 15:13:50 UTC
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.
Comment 1 Max Gautier 2020-06-22 15:21:27 UTC
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".
Comment 2 Max Gautier 2020-06-22 15:22:39 UTC
Created attachment 289819 [details]
full kernel log (on 5.7.2)

Idem
Comment 3 Emmanuel Grumbach 2020-06-23 11:46:27 UTC
Created attachment 289847 [details]
bugfix

Can you please test this patch?

Thanks.
Comment 4 Max Gautier 2020-06-23 12:33:15 UTC
I'll do that and report next time I hit the bug. Or if I don't encounter it for some time.
Comment 5 Max Gautier 2020-06-24 13:34:24 UTC
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) ?
Comment 6 Emmanuel Grumbach 2020-06-24 13:36:52 UTC
Yes
the CSA your AP sends seems bogus, so we decide to ignore it.
No FW crash anymore?
You reconnect afterwards?
Comment 7 Max Gautier 2020-06-24 15:35:49 UTC
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
Comment 8 Emmanuel Grumbach 2020-06-24 16:03:45 UTC
Ok thanks.
I'll let Luca drive the bug from here.
Patch is pending review internally.

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