Date: Fri, 23 Mar 2018 19:48:15 +0000
From: Johannes Lundberg <johalun0@gmail.com>
To: AN <andy@neu.net>
Cc: freebsd-current@freebsd.org
Subject: Re: problem with [intr{swi4: clock (0)}]
Message-ID: <CAECmPwv%2BUDabW2%2B2rwPyDG0W_eqVuyqgTkLayi5xE-W6_3BdXA@mail.gmail.com>
In-Reply-To: <alpine.BSF.2.21.1803211112520.46515@mail.neu.net>
References: <alpine.BSF.2.21.1803211112520.46515@mail.neu.net>
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On Wed, Mar 21, 2018 at 15:38 AN <andy@neu.net> wrote:
> Hi:
>
> I would appreciate any help with this issue, this is a new machine built
> in the last week and if it is a hardware issue I want to return it. The
> problem seems to have started in the last 24 hours or so. I am seeing a
> really high cpu utilization for [intr{swi4: clock (0)}]. I have tried a
> couple things to troubleshoot:
>
> rebuilt world and kernel
> turned off Virtualbox ( did not load kernel module)
> turned off in BIOS network, audio
> installed disk from another similar machine, booted and it shows the exac=
t
> same problem.
>
> Here is what I see in top:
> last pid: 56553; load averages: 0.09, 0.44, 0.26
> up 0+00:04:38 11:25:24
> 472 processes: 14 running, 418 sleeping, 40 waiting
> CPU 0: 0.0% user, 0.0% nice, 0.0% system, 27.5% interrupt, 72.5% idle
> CPU 1: 0.7% user, 0.0% nice, 0.0% system, 0.0% interrupt, 99.3% idle
> CPU 2: 0.0% user, 0.0% nice, 0.0% system, 0.0% interrupt, 100% idle
> CPU 3: 0.0% user, 0.0% nice, 0.0% system, 0.0% interrupt, 100% idle
> CPU 4: 0.0% user, 0.0% nice, 0.0% system, 0.0% interrupt, 100% idle
> CPU 5: 0.0% user, 0.0% nice, 0.7% system, 0.0% interrupt, 99.3% idle
> CPU 6: 0.8% user, 0.0% nice, 0.8% system, 0.0% interrupt, 98.5% idle
> CPU 7: 0.0% user, 0.0% nice, 0.0% system, 0.0% interrupt, 100% idle
> CPU 8: 0.0% user, 0.0% nice, 0.0% system, 0.0% interrupt, 100% idle
> CPU 9: 0.0% user, 0.0% nice, 0.0% system, 0.0% interrupt, 100% idle
> CPU 10: 0.0% user, 0.0% nice, 0.0% system, 0.0% interrupt, 100% idle
> CPU 11: 0.0% user, 0.0% nice, 0.0% system, 0.0% interrupt, 100% idle
> Mem: 1096M Active, 53M Inact, 300K Laundry, 568M Wired, 290M Buf, 14G Fre=
e
> Swap: 21G Total, 21G Free
>
> PID USERNAME PRI NICE SIZE RES STATE C TIME WCPU COMMAND
> 11 root 155 ki31 0K 192K CPU1 1 4:32 100.00%
> [idle{idle: cpu1}]
> 11 root 155 ki31 0K 192K CPU8 8 4:31 100.00%
> [idle{idle: cpu8}]
> 11 root 155 ki31 0K 192K CPU9 9 4:30 100.00%
> [idle{idle: cpu9}]
> 11 root 155 ki31 0K 192K CPU2 2 4:30 100.00%
> [idle{idle: cpu2}]
> 11 root 155 ki31 0K 192K CPU10 10 4:30 100.00%
> [idle{idle: cpu10}]
> 11 root 155 ki31 0K 192K CPU5 5 4:27 100.00%
> [idle{idle: cpu5}]
> 11 root 155 ki31 0K 192K RUN 11 4:25 99.82%
> [idle{idle: cpu11}]
> 11 root 155 ki31 0K 192K CPU6 6 4:30 98.93%
> [idle{idle: cpu6}]
> 11 root 155 ki31 0K 192K CPU7 7 4:31 96.83%
> [idle{idle: cpu7}]
> 11 root 155 ki31 0K 192K CPU3 3 4:27 94.94%
> [idle{idle: cpu3}]
> 11 root 155 ki31 0K 192K CPU4 4 4:29 94.11%
> [idle{idle: cpu4}]
> 11 root 155 ki31 0K 192K RUN 0 3:45 71.60%
> [idle{idle: cpu0}]
> 12 root -60 - 0K 656K CPU0 0 0:53 28.43%
> [intr{swi4: clock (0)}]
>
>
> 28.20% [intr{swi4: clock (0)}] - the process is using close to 30% cpu
> time.
>
> I have no idea what could be causing this, any advice would be
> appreciated. Thanks in advance.
>
> 12 root -60 - 0K 656K WAIT 0 1:27 28.80% [intr{swi4:
> clock (0)}]
>
> systat shows:
>
> 1 users Load 0.20 0.16 0.18 Mar 21 11:35
> Mem usage: 11%Phy 1%Kmem
> Mem: KB REAL VIRTUAL VN PAGER SWAP
> PAGER
> Tot Share Tot Share Free in out in
> out
> Act 1357104 111928 4267688 193328 14176K count
> All 1357984 112656 4285556 211028 pages
> Proc:
> Interrupts
> r p d s w Csw Trp Sys Int Sof Flt 8 ioflt 996k
> total
> 1 314 2.0 296 2213 133 1.0 155 cow
> atkbd0 1
> 8 zfod 996k
> cpu0:timer
> 0.1%Sys 1.9%Intr 0.1%User 0.0%Nice 98.0%Idle ozfod 68
> xhci0 259
> | | | | | | | | | | %ozfod
> ahci0 260
> + daefr 5 re0
> 261
> 4 dtbuf prcfr
> hdac0 262
> Namei Name-cache Dir-cache 349771 desvn 21 totfr
> hdac1 280
> Calls hits % hits % 3740 numvn react 4
> cpu6:timer
> 474 474 100 958 frevn pdwak 5
> cpu10:time
> 456 pdpgs 11
> cpu7:timer
> Disks ada0 pass0 intrn 10
> cpu11:time
> KB/t 0.00 0.00 469596 wire 3
> cpu1:timer
> tps 0 0 1121780 act 2
> cpu8:timer
> MB/s 0.00 0.00 170492 inact 8
> cpu9:timer
> %busy 0 0 300 laund 5
> cpu4:timer
> 14516016 free 2
> cpu2:timer
> 183472 buf 7
> cpu5:timer
> 7
> cpu3:timer
>
> FreeBSD BSD_12 12.0-CURRENT FreeBSD 12.0-CURRENT #18 r331138: Sun Mar 18
> 16:08:31 EDT 2018
> root@BSD_12:/usr/obj/usr/src/amd64.amd64/sys/MYKERNEL amd64 1200060
>
> FreeBSD 12.0-CURRENT #18 r331138: Sun Mar 18 16:08:31 EDT 2018
> root@BSD_12:/usr/obj/usr/src/amd64.amd64/sys/MYKERNEL amd64
> FreeBSD clang version 6.0.0 (tags/RELEASE_600/final 326565) (based on LLV=
M
> 6.0.0)
> VT(vga): resolution 640x480
> CPU: AMD Ryzen 5 1600X Six-Core Processor (3600.10-MHz K8-clas=
s
> CPU)
> Origin=3D"AuthenticAMD" Id=3D0x800f11 Family=3D0x17 Model=3D0x1 St=
epping=3D1
>
>
> Features=3D0x178bfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PG=
E,MCA,CMOV,PAT,PSE36,CLFLUSH,MMX,FXSR,SSE,SSE2,HTT>
>
>
> Features2=3D0x7ed8320b<SSE3,PCLMULQDQ,MON,SSSE3,FMA,CX16,SSE4.1,SSE4.2,MO=
VBE,POPCNT,AESNI,XSAVE,OSXSAVE,AVX,F16C,RDRAND>
> AMD Features=3D0x2e500800<SYSCALL,NX,MMX+,FFXSR,Page1GB,RDTSCP,LM>
> AMD
>
> Features2=3D0x35c233ff<LAHF,CMP,SVM,ExtAPIC,CR8,ABM,SSE4A,MAS,Prefetch,OS=
VW,SKINIT,WDT,TCE,Topology,PCXC,PNXC,DBE,PL2I,MWAITX>
> Structured Extended
>
> Features=3D0x209c01a9<FSGSBASE,BMI1,AVX2,SMEP,BMI2,RDSEED,ADX,SMAP,CLFLUS=
HOPT,SHA>
> XSAVE Features=3D0xf<XSAVEOPT,XSAVEC,XINUSE,XSAVES>
> AMD Extended Feature Extensions ID EBX=3D0x7<CLZERO,IRPerf,XSaveErPtr>
> SVM: NP,NRIP,VClean,AFlush,DAssist,NAsids=3D32768
> TSC: P-state invariant, performance statistics
> real memory =3D 17179869184 (16384 MB)
> avail memory =3D 16596353024 (15827 MB)
> Event timer "LAPIC" quality 600
> ACPI APIC Table: <ALASKA A M I >
> FreeBSD/SMP: Multiprocessor System Detected: 12 CPUs
> FreeBSD/SMP: 1 package(s) x 2 cache groups x 3 core(s) x 2 hardware
> threads
> random: unblocking device.
> Firmware Warning (ACPI): Optional FADT field Pm2ControlBlock has valid
> Length but zero Address: 0x0000000000000000/0x1 (20180313/tbfadt-796)
> ioapic0 <Version 2.1> irqs 0-23 on motherboard
> ioapic1 <Version 2.1> irqs 24-55 on motherboard
> random: entropy device external interface
> kbd1 at kbdmux0
> netmap: loaded module
> module_register_init: MOD_LOAD (vesa, 0xffffffff809e79e0, 0) error 19
> random: registering fast source Intel Secure Key RNG
> random: fast provider: "Intel Secure Key RNG"
> nexus0
> vtvga0: <VT VGA driver> on motherboard
> cryptosoft0: <software crypto> on motherboard
> acpi0: <ALASKA A M I > on motherboard
>
Hi!
I had a similar problem caused by interrupt storm from the GPU on a
MacBook.
The problem is described here:
https://bugs.freedesktop.org/show_bug.cgi?id=3D98501
I disabled that IRQ by using a custom acpi config. I know it=E2=80=99s not =
the same
hardware but might give
I can share more details tomorrow when I=E2=80=99m at my computer if you th=
ink this
might be related.
>
>
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