Date: Mon, 1 Oct 2012 08:15:48 GMT From: Aleksei Reytsman <reytsman@solvex.travel> To: freebsd-gnats-submit@FreeBSD.org Subject: usb/172199: high interrupts load xhci Message-ID: <201210010815.q918FmWZ088496@red.freebsd.org> Resent-Message-ID: <201210010820.q918K3mT067576@freefall.freebsd.org>
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>Number: 172199
>Category: usb
>Synopsis: high interrupts load xhci
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: freebsd-usb
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Mon Oct 01 08:20:03 UTC 2012
>Closed-Date:
>Last-Modified:
>Originator: Aleksei Reytsman
>Release: 9.0
>Organization:
Solvex-Tourne ltd
>Environment:
# uname -a
FreeBSD servergate 9.0-RELEASE FreeBSD 9.0-RELEASE #0: Wed Mar 28 15:00:36 MSK 2012 root@servergate:/usr/src/sys/amd64/compile/MYKERNEL amd64
>Description:
Hello.
I have a very high interrupts load on my FreeBSD machine. It happens when i plug any USB device (like a keyboard), and the load is still high after disconnecting the device. It becomes normal after reboot.
My system based on ASUS P8Z68-V Pro/Gen3 motherboard.
MYKERNEL is the GENERIC kernel with ipfw support.
Sorry for bad English.
Some debug information below:
# vmstat -i
interrupt total rate
irq16: xhci1 10760525071 17776
irq23: ehci0 ehci1 1826517 3
cpu0:timer 619928626 1024
irq256: em0:rx 0 54277776 89
irq257: em0:tx 0 42013316 69
irq258: em0:link 2 0
irq262: em2:rx 0 541775211 895
irq263: em2:tx 0 498677204 823
irq264: em2:link 1 0
irq265: em3:rx 0 300580772 496
irq266: em3:tx 0 593156009 979
irq268: ahci0 5757554 9
cpu1:timer 123236782 203
cpu3:timer 100504666 166
cpu2:timer 58767827 97
Total 13701027334 22634
# systat -vmstat
1 users Load 0.32 0.51 0.50 Oct 1 11:52
Mem:KB REAL VIRTUAL VN PAGER SWAP PAGER
Tot Share Tot Share Free in out in out
Act 1481080 158408 5595688 175752 2913052 count
All 1581028 164260 1079516k 209568 pages
Proc: Interrupts
r p d s w Csw Trp Sys Int Sof Flt cow 173k total
137 349k 24 122 171k 1055 3 zfod 166k xhci1 16
ozfod 3 ehci0 ehci
0.1%Sys 18.0%Intr 0.0%User 0.0%Nice 81.9%Idle %ozfod 1128 cpu0:timer
| | | | | | | | | | | daefr 76 em0:rx 0
+++++++++ prcfr 72 em0:tx 0
17 dtbuf 3 totfr em0:link
Namei Name-cache Dir-cache 204931 desvn react 1216 em2:rx 0
Calls hits % hits % 179871 numvn pdwak 1146 em2:tx 0
353 353 100 49693 frevn pdpgs em2:link
intrn 933 em3:rx 0
Disks ada0 ada1 pass0 pass1 731484 wire 1312 em3:tx 0
KB/t 30.98 30.98 0.00 0.00 1123916 act 24 ahci0 268
tps 12 12 0 0 3233464 inact 914 cpu1:timer
MB/s 0.35 0.35 0.00 0.00 276 cache 139 cpu3:timer
%busy 0 0 0 0 2912776 free 72 cpu2:timer
837152 buf
# pciconf -lv
hostb0@pci0:0:0:0: class=0x060000 card=0x844d1043 chip=0x01008086 rev=0x09 hdr=0x00
vendor = 'Intel Corporation'
device = '2nd Generation Core Processor Family DRAM Controller'
class = bridge
subclass = HOST-PCI
- - - - -
xhci0@pci0:4:0:0: class=0x0c0330 card=0x84881043 chip=0x10421b21 rev=0x00 hdr=0x00
vendor = 'ASMedia Technology Inc.'
device = 'ASM1042 SuperSpeed USB Host Controller'
class = serial bus
subclass = USB
- - - - -
xhci1@pci0:7:0:0: class=0x0c0330 card=0x84881043 chip=0x10421b21 rev=0x00 hdr=0x00
vendor = 'ASMedia Technology Inc.'
device = 'ASM1042 SuperSpeed USB Host Controller'
class = serial bus
subclass = USB
>How-To-Repeat:
Plug any USB device.
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
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