acpi interrupt storm on HP EliteBook 840 G1

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acpi interrupt storm on HP EliteBook 840 G1

Greg Steuck
I have a Hewlett-Packard HP EliteBook 840 G1 amd64 machine exhibiting
strange bouts of acpi0 interrupt storms. Depending on some
undetermined factor after a reboot the machine may come up with acpi0
interrupts firing 5k times per second. This boggles the machine
down. There's a sure fire way to avoid the problem by disabling acpi
in UKC. Naturally this makes the machine unable to sleep. I tried to
collect some obvious things, but happy to produce more upon request.

The contents of
   cp -R /var/db/acpi /tmp && iasl -d /tmp/acpi/*
are here: https://blackgnezdo.github.io/hp-elitebook-840.tgz

systat views:

2 users Load 1.31 1.49 1.40                           hippy.nest.cx 10:13:13

            memory totals (in KB)            PAGING   SWAPPING     Interrupts
           real   virtual     free           in  out   in  out     5128 total
Active   426904    426904 14395076   ops                            100 clock
All     1751896   1751896 31016684   pages                              ipi
                                                                   5016 acpi0
Proc:r  d  s  w    Csw   Trp   Sys   Int   Sof  Flt       forks         inteldrm
     2   152     10051  1103   142  5027  1051   79       fkppw         xhci0
                                                          fksvm       1 em0
  18.6%Int   0.3%Spn   3.6%Sys   0.1%Usr  77.3%Idle       pwait         azalia1
|    |    |    |    |    |    |    |    |    |    |       relck      11 iwm0
|||||||||==                                               rlkok         ehci0
                                                          noram         ahci0
Namei         Sys-cache    Proc-cache    No-cache      19 ndcpy         pckbc0
    Calls     hits    %    hits     %    miss   %       2 fltcp         pckbc0
      101      101  100                                11 zfod
                                                        1 cow
Disks   sd0                                        134558 fmin
seeks                                              179410 ftarg
xfers     1                                               itarg
speed   13K                                         12145 wired
  sec   0.0                                               pdfre
                                                          pdscn       1 IPKTS
                                                          pzidl       1 OPKTS

   2 users Load 1.38 1.48 1.40                           hippy.nest.cx 10:14:29

     PID USER            NAME                     CPU      20\     40\
    60\     80\   100\
                         <idle>                 74.80
############################
   20461 root            acpi0                  14.79 #####
   56548 _x11            Xorg                   12.55 ####
   58356 greg            chrome                  3.27 #
   11548 greg            emacs-26.3              2.64
   59152 greg            xmobar                  2.10
   48669 greg            xmonad-x86_64-op        2.05
   92413 greg            xterm                   1.42

dmesg:

OpenBSD 6.6 (GENERIC.MP) #370: Fri Oct 11 13:32:44 MDT 2019
    [hidden email]:/usr/src/sys/arch/amd64/compile/GENERIC.MP
real mem = 17055608832 (16265MB)
avail mem = 16526012416 (15760MB)
mpath0 at root
scsibus0 at mpath0: 256 targets
mainbus0 at root
bios0 at mainbus0: SMBIOS rev. 2.7 @ 0xbbe3f000 (33 entries)
bios0: vendor Hewlett-Packard version "L71 Ver. 01.20" date 07/28/2014
bios0: Hewlett-Packard HP EliteBook 840 G1
acpi0 at bios0: ACPI 5.0
acpi0: sleep states S0 S3 S4 S5
acpi0: tables DSDT FACP HPET APIC MCFG TCPA SSDT SSDT FPDT BGRT SSDT
SSDT SSDT SSDT SSDT ASF! DMAR
acpi0: wakeup devices LANC(S5) EHC1(S3) XHC_(S3) PCIB(S5) NIC_(S5)
RP04(S5) WNIC(S5)
acpitimer0 at acpi0: 3579545 Hz, 24 bits
acpihpet0 at acpi0: 14318179 Hz
acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat
cpu0 at mainbus0: apid 0 (boot processor)
cpu0: Intel(R) Core(TM) i7-4600U CPU @ 2.10GHz, 1995.71 MHz, 06-45-01
cpu0: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,SMX,EST,TM2,SSSE3,SDBG,FMA3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,PAGE1GB,RDTSCP,LONG,LAHF,ABM,PERF,ITSC,FSGSBASE,TSC_ADJUST,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID,MD_CLEAR,IBRS,IBPB,STIBP,L1DF,SSBD,SENSOR,ARAT,XSAVEOPT,MELTDOWN
cpu0: 256KB 64b/line 8-way L2 cache
tsc_timecounter_init: TSC skew=0 observed drift=0
cpu0: smt 0, core 0, package 0
mtrr: Pentium Pro MTRR support, 10 var ranges, 88 fixed ranges
cpu0: apic clock running at 99MHz
cpu0: mwait min=64, max=64, C-substates=0.2.1.2.4.1.1.1, IBE
cpu1 at mainbus0: apid 1 (application processor)
TSC skew=-41
cpu1: Intel(R) Core(TM) i7-4600U CPU @ 2.10GHz, 1995.38 MHz, 06-45-01
cpu1: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,SMX,EST,TM2,SSSE3,SDBG,FMA3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,PAGE1GB,RDTSCP,LONG,LAHF,ABM,PERF,ITSC,FSGSBASE,TSC_ADJUST,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID,MD_CLEAR,IBRS,IBPB,STIBP,L1DF,SSBD,SENSOR,ARAT,XSAVEOPT,MELTDOWN
cpu1: 256KB 64b/line 8-way L2 cache
tsc_timecounter_init: TSC skew=-41 observed drift=0
cpu1: smt 1, core 0, package 0
cpu2 at mainbus0: apid 2 (application processor)
TSC skew=0
cpu2: Intel(R) Core(TM) i7-4600U CPU @ 2.10GHz, 1995.39 MHz, 06-45-01
cpu2: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,SMX,EST,TM2,SSSE3,SDBG,FMA3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,PAGE1GB,RDTSCP,LONG,LAHF,ABM,PERF,ITSC,FSGSBASE,TSC_ADJUST,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID,MD_CLEAR,IBRS,IBPB,STIBP,L1DF,SSBD,SENSOR,ARAT,XSAVEOPT,MELTDOWN
cpu2: 256KB 64b/line 8-way L2 cache
tsc_timecounter_init: TSC skew=0 observed drift=0
cpu2: smt 0, core 1, package 0
cpu3 at mainbus0: apid 3 (application processor)
TSC skew=-8
cpu3: Intel(R) Core(TM) i7-4600U CPU @ 2.10GHz, 1995.38 MHz, 06-45-01
cpu3: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,SMX,EST,TM2,SSSE3,SDBG,FMA3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,PAGE1GB,RDTSCP,LONG,LAHF,ABM,PERF,ITSC,FSGSBASE,TSC_ADJUST,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID,MD_CLEAR,IBRS,IBPB,STIBP,L1DF,SSBD,SENSOR,ARAT,XSAVEOPT,MELTDOWN
cpu3: 256KB 64b/line 8-way L2 cache
tsc_timecounter_init: TSC skew=-8 observed drift=0
cpu3: smt 1, core 1, package 0
ioapic0 at mainbus0: apid 0 pa 0xfec00000, version 20, 40 pins
acpimcfg0 at acpi0
acpimcfg0: addr 0xe0000000, bus 0-255
acpiprt0 at acpi0: bus 0 (PCI0)
acpiprt1 at acpi0: bus -1 (PEGP)
acpiprt2 at acpi0: bus 1 (RP01)
acpiprt3 at acpi0: bus 2 (RP04)
acpiprt4 at acpi0: bus 3 (RP06)
acpiprt5 at acpi0: bus -1 (RP07)
acpiprt6 at acpi0: bus -1 (RP08)
acpiec0 at acpi0
acpicpu0 at acpi0: C3(200@506 mwait.1@0x60), C2(200@148 mwait.1@0x33),
C1(1000@1 mwait.1), PSS
acpicpu1 at acpi0: C3(200@506 mwait.1@0x60), C2(200@148 mwait.1@0x33),
C1(1000@1 mwait.1), PSS
acpicpu2 at acpi0: C3(200@506 mwait.1@0x60), C2(200@148 mwait.1@0x33),
C1(1000@1 mwait.1), PSS
acpicpu3 at acpi0: C3(200@506 mwait.1@0x60), C2(200@148 mwait.1@0x33),
C1(1000@1 mwait.1), PSS
acpipwrres0 at acpi0: APPR, resource for HDEF
acpipwrres1 at acpi0: COMP, resource for COM1
acpipwrres2 at acpi0: LPP_, resource for LPT0
acpipwrres3 at acpi0: PXP6, resource for RP06
acpitz0 at acpi0: critical temperature is 128 degC
acpitz1 at acpi0: critical temperature is 128 degC
acpitz2 at acpi0: critical temperature is 128 degC
acpitz3 at acpi0: critical temperature is 128 degC
acpitz4 at acpi0: critical temperature is 128 degC
acpitz5 at acpi0: critical temperature is 128 degC
acpitz6 at acpi0: critical temperature is 128 degC
acpitz7 at acpi0: critical temperature is 128 degC
"HPQ6001" at acpi0 not configured
acpipci0 at acpi0 PCI0: 0x00000010 0x00000011 0x00000000
acpicmos0 at acpi0
"PNP0A06" at acpi0 not configured
"SYN3003" at acpi0 not configured
"HPQ6007" at acpi0 not configured
acpibat0 at acpi0: BAT0 model "Primary" serial 41076 2014/09/16 type
LIon oem "Hewlett-Packard"
acpibat1 at acpi0: BAT1 not present
acpiac0 at acpi0: AC unit online
acpibtn0 at acpi0: SLPB
acpibtn1 at acpi0: LID_
"PNP0C14" at acpi0 not configured
tpm0 at acpi0: GTPM, can't find address
"INT33A0" at acpi0 not configured
acpivideo0 at acpi0: GFX0
acpivout0 at acpivideo0: DD01
cpu0: using VERW MDS workaround (except on vmm entry)
cpu0: Enhanced SpeedStep 1995 MHz: speeds: 2701, 2700, 2600, 2400,
2300, 2100, 2000, 1800, 1700, 1600, 1400, 1300, 1100, 1000, 800, 756
MHz
pci0 at mainbus0 bus 0
pchb0 at pci0 dev 0 function 0 "Intel Core 4G Host" rev 0x0b
inteldrm0 at pci0 dev 2 function 0 "Intel HD Graphics" rev 0x0b
drm0 at inteldrm0
inteldrm0: msi
azalia0 at pci0 dev 3 function 0 "Intel Core 4G HD Audio" rev 0x0b: msi
azalia0: No codecs found
xhci0 at pci0 dev 20 function 0 "Intel 8 Series xHCI" rev 0x04: msi, xHCI 1.0
usb0 at xhci0: USB revision 3.0
uhub0 at usb0 configuration 1 interface 0 "Intel xHCI root hub" rev
3.00/1.00 addr 1
"Intel 8 Series MEI" rev 0x04 at pci0 dev 22 function 0 not configured
em0 at pci0 dev 25 function 0 "Intel I218-LM" rev 0x04: msi, address
34:64:a9:xx:xx:xx
azalia1 at pci0 dev 27 function 0 "Intel 8 Series HD Audio" rev 0x04: msi
azalia1: codecs: IDT/0x76e0
audio0 at azalia1
ppb0 at pci0 dev 28 function 0 "Intel 8 Series PCIE" rev 0xe4
pci1 at ppb0 bus 1
ppb1 at pci0 dev 28 function 3 "Intel 8 Series PCIE" rev 0xe4: msi
pci2 at ppb1 bus 2
iwm0 at pci2 dev 0 function 0 "Intel Dual Band Wireless AC 7260" rev 0x73, msi
ppb2 at pci0 dev 28 function 5 "Intel 8 Series PCIE" rev 0xe4: msi
pci3 at ppb2 bus 3
ehci0 at pci0 dev 29 function 0 "Intel 8 Series USB" rev 0x04: apic 0 int 17
usb1 at ehci0: USB revision 2.0
uhub1 at usb1 configuration 1 interface 0 "Intel EHCI root hub" rev
2.00/1.00 addr 1
pcib0 at pci0 dev 31 function 0 "Intel 8 Series LPC" rev 0x04
ahci0 at pci0 dev 31 function 2 "Intel 8 Series AHCI" rev 0x04: msi, AHCI 1.3
ahci0: port 0: 6.0Gb/s
scsibus1 at ahci0: 32 targets
sd0 at scsibus1 targ 0 lun 0: <ATA, INTEL SSDSC2BF18, LH6i> naa.xxxxxxxxx
sd0: 171705MB, 512 bytes/sector, 351651888 sectors, thin
ichiic0 at pci0 dev 31 function 3 "Intel 8 Series SMBus" rev 0x04: apic 0 int 18
iic0 at ichiic0
iic0: addr 0x2c 80=04 81=04 82=04 83=04 84=04 85=04 86=04 87=04 fd=01
words 00=ffff 01=ffff 02=ffff 03=ffff 04=ffff 05=ffff 06=ffff 07=ffff
spdmem0 at iic0 addr 0x50: 8GB DDR3 SDRAM PC3-12800 SO-DIMM
spdmem1 at iic0 addr 0x52: 8GB DDR3 SDRAM PC3-12800 SO-DIMM
isa0 at pcib0
isadma0 at isa0
pckbc0 at isa0 port 0x60/5 irq 1 irq 12
pckbd0 at pckbc0 (kbd slot)
wskbd0 at pckbd0: console keyboard
pms0 at pckbc0 (aux slot)
wsmouse0 at pms0 mux 0
pcppi0 at isa0 port 0x61
spkr0 at pcppi0
vmm0 at mainbus0: VMX/EPT
uhub2 at uhub0 port 3 configuration 1 interface 0 "SMSC USB2134B" rev
2.10/50.00 addr 2
ugen0 at uhub2 port 2 "Intel product 0x07dc" rev 2.00/0.01 addr 3
uhidev0 at uhub2 port 3 configuration 1 interface 0 "Microsoft
Microsoft 3-Button Mouse with IntelliEye(TM)" rev 1.10/3.00 addr 4
uhidev0: iclass 3/1
ums0 at uhidev0: 3 buttons, Z dir
wsmouse1 at ums0 mux 0
uhub3 at uhub2 port 4 configuration 1 interface 0 "PI Engineering
Kinesis Keyboard Hub" rev 1.10/3.20 addr 5
uhidev1 at uhub3 port 2 configuration 1 interface 0 "P.I. Engineering
product 0x0007" rev 1.10/3.20 addr 6
uhidev1: iclass 3/1
ukbd0 at uhidev1: 8 variable keys, 6 key codes, country code 33
wskbd1 at ukbd0 mux 1
uhidev2 at uhub3 port 2 configuration 1 interface 1 "P.I. Engineering
product 0x0007" rev 1.10/3.20 addr 6
uhidev2: iclass 3/0, 3 report ids
uhid0 at uhidev2 reportid 2: input=1, output=0, feature=0
uhid1 at uhidev2 reportid 3: input=3, output=0, feature=0
ugen1 at uhub0 port 5 "Validity Sensors product 0x003f" rev 1.10/1.04 addr 7
uvideo0 at uhub0 port 7 configuration 1 interface 0 "Chicony
Electronics Co.,Ltd. HP HD Webcam" rev 2.00/66.63 addr 8
video0 at uvideo0
uhub4 at uhub0 port 12 configuration 1 interface 0 "SMSC USB5534B" rev
3.00/50.00 addr 9
uhub5 at uhub1 port 1 configuration 1 interface 0 "Intel Rate Matching
Hub" rev 2.00/0.04 addr 2
vscsi0 at root
scsibus2 at vscsi0: 256 targets
softraid0 at root
scsibus3 at softraid0: 256 targets
root on sd0a (86a971afbc66ee3f.a) swap on sd0b dump on sd0b
WARNING: / was not properly unmounted
inteldrm0: 1920x1080, 32bpp
wsdisplay0 at inteldrm0 mux 1: console (std, vt100 emulation), using wskbd0
wskbd1: connecting to wsdisplay0
wsdisplay0: screen 1-5 added (std, vt100 emulation)
iwm0: hw rev 0x140, fw ver 16.242414.0, address 80:19:34:xx:xx:xx

I compared dmesg between the two "modes" (storm/quiet) and they didn't
seem to differ in any substantial way.

diff acpi-interrupts-dmesg no-acpi-storm.dmesg:
4c4
< avail mem = 16526012416 (15760MB)
---
> avail mem = 16526000128 (15760MB)
19c19
< cpu0: Intel(R) Core(TM) i7-4600U CPU @ 2.10GHz, 1995.71 MHz, 06-45-01
---
> cpu0: Intel(R) Core(TM) i7-4600U CPU @ 2.10GHz, 1995.67 MHz, 06-45-01
28,29c28,29
< TSC skew=-41
< cpu1: Intel(R) Core(TM) i7-4600U CPU @ 2.10GHz, 1995.38 MHz, 06-45-01
---
> TSC skew=-33
> cpu1: Intel(R) Core(TM) i7-4600U CPU @ 2.10GHz, 1995.39 MHz, 06-45-01
32c32
< tsc_timecounter_init: TSC skew=-41 observed drift=0
---
> tsc_timecounter_init: TSC skew=-33 observed drift=0
35,36c35,36
< TSC skew=0
< cpu2: Intel(R) Core(TM) i7-4600U CPU @ 2.10GHz, 1995.39 MHz, 06-45-01
---
> TSC skew=-2
> cpu2: Intel(R) Core(TM) i7-4600U CPU @ 2.10GHz, 1995.40 MHz, 06-45-01
39c39
< tsc_timecounter_init: TSC skew=0 observed drift=0
---
> tsc_timecounter_init: TSC skew=-2 observed drift=0
42,43c42,43
< TSC skew=-8
< cpu3: Intel(R) Core(TM) i7-4600U CPU @ 2.10GHz, 1995.38 MHz, 06-45-01
---
> TSC skew=2
> cpu3: Intel(R) Core(TM) i7-4600U CPU @ 2.10GHz, 1995.39 MHz, 06-45-01
46c46
< tsc_timecounter_init: TSC skew=-8 observed drift=0
---
> tsc_timecounter_init: TSC skew=2 observed drift=0


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