Intel Pro 1000 (em0) - sched_ithd: stray interrupt 22 on cpuX

Jacek 'Szumak' Kotlarski szumak at virthost.pl
Tue Oct 30 04:46:42 PDT 2018


Hello, I create a small host to monitor the network. Asrock J3455B-ITX 
motherboard, Intel Pro 1000 PT Dual Port PCI-E network card. After 
starting the system, I receive messages on the console:

sched_ithd: 10 stray interrupts 22 on cpuXX

What can be a problem in this case and is it possible to solve it?
In the case when I turn on the polling mode for em0, the system stops responding for several dozen seconds in the loop.

Earlier I set options:
hw.tsc_cputimer_force="-1" <- hangs on boot in default configuration

dmesg:
Copyright (c) 2003-2018 The DragonFly Project.
Copyright (c) 1992-2003 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
     The Regents of the University of California. All rights reserved.
DragonFly v5.2.2-RELEASE #5: Sun Jun 17 19:38:07 EDT 2018
     root at www.shiningsilence.com:/usr/obj/home/justin/release/5_2/sys/X86_64_GENERIC
acpi_hpet: frequency 19200000
Using cputimer HPET for TSC calibration
Timer latency (in TSC ticks): 7020 min=6932 max=7158
TSC invariant clock: 1497599881 Hz
CPU: Intel(R) Celeron(R) CPU J3455 @ 1.50GHz (1497.60-MHz K8-class CPU)
   Origin = "GenuineIntel"  Id = 0x506c9  Stepping = 9
   Features=0xbfebfbff<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,HTT,TM,PBE>
   Features2=0x47f8ebbf<SSE3,PCLMULQDQ,DTES64,MON,DS_CPL,VMX,EST,TM2,SSSE3,SDBG,CX16,xTPR,PDCM,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,TSCDLT,AESNI,XSAVE,RDRND>
   AMD Features=0x2c100800<SYSCALL,NX,Page1GB,RDTSCP,LM>
   AMD Features2=0x101<LAHF,Prefetch>
   Structured Extended Features=0x2294e283<GSFSBASE,TSCADJ,SMEP,ENHMOVSB,RDSEED,SMAP>
   Thermal and PM Features=0x57<SENSOR,TURBO,ARAT,PLN,PTM>
   MONITOR/MWAIT Features=0x3<CST,INTBRK>
real memory  = 3931019264 (3748 MB)
avail memory = 3521867776 (3358 MB)
lapic: TSC Deadline Mode: shift 0, frequency 1497599881 Hz
srat_probe: can't locate SRAT
Initialize MI interrupts
TSC MP synchronization test is disabled
machdep.spectre_mitigation=-1: IBRS=NOSUPPORT, IBPB=NOSUPPORT
VMM: available, disabled by default
machdep.meltdown_mitigation enabled to protect against (mostly Intel) meltdown bug
system call performance will be impacted
wdog: In-kernel automatic watchdog reset enabled
kbd1 at kbdmux0
md0: Malloc disk
interrupt uses mplock: swi_taskq
ACPI: RSDP 0x00000000000F05B0 000024 (v02 ALASKA)
ACPI: XSDT 0x000000006D99F0C0 0000DC (v01 ALASKA A M I    01072009 AMI  00010013)
ACPI: FACP 0x000000006D9A8460 000114 (v06 ALASKA A M I    01072009 AMI  00010013)
ACPI: DSDT 0x000000006D99F240 00921E (v02 ALASKA A M I    01072009 INTL 20120913)
ACPI: FACS 0x000000006D9BB080 000040
ACPI: FPDT 0x000000006D9A8580 000044 (v01 ALASKA A M I    01072009 AMI  00010013)
ACPI: FIDT 0x000000006D9A85D0 00009C (v01 ALASKA A M I    01072009 AMI  00010013)
ACPI: MCFG 0x000000006D9A8670 00003C (v01 ALASKA A M I    01072009 MSFT 00000097)
ACPI: DBG2 0x000000006D9A86B0 000072 (v00 INTEL  EDK2     00000003 BRXT 0100000D)
ACPI: DBGP 0x000000006D9A8730 000034 (v01 INTEL  EDK2     00000003 BRXT 0100000D)
ACPI: HPET 0x000000006D9A8770 000038 (v01 INTEL  EDK2     00000003 BRXT 0100000D)
ACPI: LPIT 0x000000006D9A87B0 00005C (v01 INTEL  EDK2     00000003 BRXT 0100000D)
ACPI: APIC 0x000000006D9A8810 000084 (v03 INTEL  EDK2     00000003 BRXT 0100000D)
ACPI: NPKT 0x000000006D9A88A0 000065 (v01 INTEL  EDK2     00000003 BRXT 0100000D)
ACPI: PRAM 0x000000006D9A8910 000030 (v01 INTEL  EDK2     00000003 BRXT 0100000D)
ACPI: WSMT 0x000000006D9A8940 000028 (v00 INTEL  EDK2     00000003 BRXT 0100000D)
ACPI: SSDT 0x000000006D9A8970 000B53 (v02 INTEL  UsbCTabl 00000003 BRXT 0100000D)
ACPI: SSDT 0x000000006D9A94D0 0016E9 (v01 Intel_ Platform 00001000 INTL 20120913)
ACPI: AAFT 0x000000006D9AABC0 0002AE (v01 ALASKA OEMAAFT  01072009 MSFT 00000097)
ACPI: SSDT 0x000000006D9AAE70 000442 (v02 PmRef  Cpu0Ist  00003000 INTL 20120913)
ACPI: SSDT 0x000000006D9AB2C0 00072B (v02 CpuRef CpuSsdt  00003000 INTL 20120913)
ACPI: SSDT 0x000000006D9AB9F0 00032D (v02 PmRef  Cpu0Tst  00003000 INTL 20120913)
ACPI: SSDT 0x000000006D9ABD20 00017C (v02 PmRef  ApTst    00003000 INTL 20120913)
ACPI: SSDT 0x000000006D9ABEA0 002760 (v02 SaSsdt SaSsdt   00003000 INTL 20120913)
ACPI: UEFI 0x000000006D9AE600 000042 (v01 ALASKA A M I    00000000      00000000)
ACPI: TPM2 0x000000006D9AE650 000034 (v03        Tpm2Tabl 00000001 AMI  00000000)
ACPI: WDAT 0x000000006D9AE690 000104 (v01                 00000000      00000000)
sc0: <System console> on motherboard
sc0: VGA <16 virtual consoles, flags=0x300>
cryptosoft0: <software crypto> on motherboard
acpi0: <ALASKA A M I > on motherboard
ACPI: Executed 2 blocks of module-level executable AML code
ACPI: Executed 1 blocks of module-level executable AML code
ACPI: 8 ACPI AML tables successfully acquired and loaded
ACPI FADT: SCI testing interrupt mode ...
ACPI FADT: SCI select level/low
can't fetch resources for \\_SB_.PCI0.SDIO.BRC2 - AE_AML_INVALID_RESOURCE_TYPE
acpi_hpet0: <High Precision Event Timer> iomem 0xfed00000-0xfed003ff on acpi0
acpi_timer0 on acpi0
cpu0: <ACPI CPU> on acpi0
ACPI: Dynamic OEM Table Load:
ACPI: SSDT 0xFFFFF80053AB7F40 000102 (v02 PmRef  Cpu0Cst  00003001 INTL 20120913)
cpu_cst0: <ACPI CPU C-State> on cpu0
cpu_pst0: <ACPI CPU P-State> on cpu0
clockmod0: <CPU clock modulation> on cpu0
coretemp0: <CPU On-Die Thermal Sensors> on cpu0
cpu1: <ACPI CPU> on acpi0
ACPI: Dynamic OEM Table Load:
ACPI: SSDT 0xFFFFF80053AE0E60 00015F (v02 PmRef  ApIst    00003000 INTL 20120913)
ACPI: Dynamic OEM Table Load:
ACPI: SSDT 0xFFFFF80053A08BE0 00008D (v02 PmRef  ApCst    00003000 INTL 20120913)
cpu_cst1: <ACPI CPU C-State> on cpu1
cpu_pst1: <ACPI CPU P-State> on cpu1
clockmod1: <CPU clock modulation> on cpu1
coretemp1: <CPU On-Die Thermal Sensors> on cpu1
cpu2: <ACPI CPU> on acpi0
cpu_cst2: <ACPI CPU C-State> on cpu2
cpu_pst2: <ACPI CPU P-State> on cpu2
clockmod2: <CPU clock modulation> on cpu2
coretemp2: <CPU On-Die Thermal Sensors> on cpu2
cpu3: <ACPI CPU> on acpi0
cpu_cst3: <ACPI CPU C-State> on cpu3
cpu_pst3: <ACPI CPU P-State> on cpu3
clockmod3: <CPU clock modulation> on cpu3
coretemp3: <CPU On-Die Thermal Sensors> on cpu3
acpi_button0: <Power Button> on acpi0
acpi_tz0: <Thermal Zone> on acpi0
pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff,0x70-0x77 on acpi0
pci0: <ACPI PCI bus> on pcib0
vgapci0: <VGA-compatible display> port 0xf000-0xf03f mem 0x80000000-0x8fffffff,0x90000000-0x90ffffff irq 19 at device 2.0 on pci0
vgapci0: Boot video device
pci0: <simple comms> (vendor 0x8086, dev 0x5a9a) at device 15.0 irq 20
ahci0: <AHCI-PCI-SATA> port 0xf060-0xf07f,0xf080-0xf083,0xf090-0xf097 mem 0x91113000-0x911137ff,0x91114000-0x911140ff,0x91110000-0x91111fff irq 19 at device 18.0 on pci0
ahci0: AE did not auto-clear!
ahci0: Intel hocus pocus
ahci0: AHCI 1.3.1 cap 0xe136ff01<S64A,NCQ,SSNTF,SCLO,SAM,SPM,PMD,SSC,PSC> cap2 0x3c<DESO,SADM,SDS,APST>, 2 ports, 32 tags/port, gen 3 (6Gbps)
ahci0.1: PMPROBE(1) No Port Multiplier was found.
ahci0.1: PMPROBE(1) No Port Multiplier was found.
ahci0.0: PMPROBE(2) No Port Multiplier was found.
ahci0.0: PMPROBE(2) No Port Multiplier was found.
ahci0.0: Found DISK "WDC WD5000AAKX-08ERMA0 19.01H19" serial="WD-WCC2ECK79356"
ahci0.0: tags=32/32 satacap=1d0e satacap2=0006 satafea=0044 NCQ=YES capacity=476940.02MB
ahci0.0: f85=3469 f86=bc01 f87=6123 WC=enabled RA=enabled SEC=frozen
ahci0.1: PHY offline
pcib1: <ACPI PCI-PCI bridge> at device 19.0 on pci0
pci1: <ACPI PCI bus> on pcib1
em0: <Intel(R) PRO/1000 Network Connection 82571EB_COPPER 7.6.2> port 0xe020-0xe03f mem 0x91080000-0x9109ffff,0x910a0000-0x910bffff irq 22 at device 0.0 on pci1
em0: MAC address: 68:05:ca:08:75:74
em1: <Intel(R) PRO/1000 Network Connection 82571EB_COPPER 7.6.2> port 0xe000-0xe01f mem 0x91020000-0x9103ffff,0x91040000-0x9105ffff irq 23 at device 0.1 on pci1
em1: MAC address: 68:05:ca:08:75:75
xhci0: <XHCI (generic) USB 3.0 controller> mem 0x91100000-0x9110ffff irq 17 at device 21.0 on pci0
xhci0: 32 bytes context size, 64-bit DMA
usbus0 on xhci0
usbus0: 5.0Gbps Super Speed USB v3.0
isab0: <PCI-ISA bridge> at device 31.0 on pci0
isa0: <ISA bus> on isab0
pci0: <serial bus, SMBus> (vendor 0x8086, dev 0x5ad4) at device 31.1
atkbdc0: <Keyboard controller (i8042)> port 0x64,0x60 irq 1 on acpi0
atkbd0: <AT Keyboard> irq 1 on atkbdc0
kbd0 at atkbd0
ugen0.1: <0x8086> at usbus0
uhub0: <0x8086 XHCI root HUB, class 9/0, rev 3.00/1.00, addr 1> on usbus0
ACPI: Enabled 7 GPEs in block 00 to 7F
aesni0: <AES-CBC,AES-XTS> on motherboard
padlock0: No ACE support.
rdrand0: <RdRand RNG> on motherboard
Freeing low dma reserve @ 0xfffff80109840000
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
lm0: <Winbond W83627DHG Hardware Monitor> at port 0x290-0x297 on isa0
sio0: can't drain, serial port might not exist, disabling
sio1: can't drain, serial port might not exist, disabling
hpt27xx: no controller detected.
CAM: Configuring 2 busses
CAM: finished configuring all busses
da0 at ahci0 bus 0 target 0 lun 0
da0: <SATA WDC WD5000AAKX-0 19.0> Fixed Direct Access SCSI-4 device
da0: Serial Number WD-WCC2ECK79356
da0: 600.000MB/s transfers
da0: 476940MB (976773168 512 byte sectors: 255H 63S/T 60801C)
uhub0: 15 ports with 15 removable, self powered
Mounting root from hammer:serno/WD-WCC2ECK79356.s1d
HAMMER(ROOT) recovery check seqno=002825d3
HAMMER(ROOT) recovery range 300000000c072758-300000000c072758
HAMMER(ROOT) recovery nexto 300000000c072758 endseqno=002825d4
HAMMER(ROOT) mounted clean, no recovery needed
DMA space used: 5152k, remaining available: 131072k
Mounting devfs
HAMMER(BUILD) recovery check seqno=0010eb1d
HAMMER(BUILD) recovery range 30000000019c1e78-30000000019c1e78
HAMMER(BUILD) recovery nexto 30000000019c1e78 endseqno=0010eb1e
HAMMER(BUILD) mounted clean, no recovery needed
swap low/high-water marks set to 41940/62910
sched_ithd: stray interrupt 22 on cpu1
sched_ithd: stray interrupt 22 on cpu3
sched_ithd: stray interrupt 22 on cpu0
sched_ithd: stray interrupt 22 on cpu3
sched_ithd: stray interrupt 22 on cpu1
sched_ithd: stray interrupt 22 on cpu0
sched_ithd: stray interrupt 22 on cpu0
sched_ithd: stray interrupt 22 on cpu3
sched_ithd: stray interrupt 22 on cpu1
sched_ithd: stray interrupt 22 on cpu0
sched_ithd: stray interrupt 22 on cpu3
sched_ithd: stray interrupt 22 on cpu1
sched_ithd: stray interrupt 22 on cpu0
sched_ithd: stray interrupt 22 on cpu3
sched_ithd: stray interrupt 22 on cpu1
sched_ithd: stray interrupt 22 on cpu0
sched_ithd: stray interrupt 22 on cpu3
sched_ithd: stray interrupt 22 on cpu1
sched_ithd: stray interrupt 22 on cpu3
sched_ithd: stray interrupt 22 on cpu0
sched_ithd: stray interrupt 22 on cpu1
sched_ithd: stray interrupt 22 on cpu1
sched_ithd: stray interrupt 22 on cpu3
sched_ithd: stray interrupt 22 on cpu0
sched_ithd: 10 stray interrupts 22 on cpu0 - there will be no further reports
sched_ithd: 10 stray interrupts 22 on cpu3 - there will be no further reports
sched_ithd: 10 stray interrupts 22 on cpu1 - there will be no further reports

% vmstat -vi
interrupt                                total       rate
irq9     0: acpi0                            0          0
irq17    0: ahci0                         7574          1
irq22    0:                               5736          1
irq196   0: swi_vm                           0          0
irq1     1: atkbd0                           0          0
irq16    1: xhci0                            0          0
irq22    1:                               5741          1
irq197   1: swi_mp_taskq/swi_taskq         425          0
irq22    2: em0                           5741          1
irq22    3:                               5741          1
irq23    3: em1                              0          0
irq195   3: swi_cambio                    7651          2
Total                                    38609         10

greetings,
-- 
Jacek Kotlarski



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