Date: Thu, 22 Aug 2013 16:50:01 GMT From: tin <tin@tin.org.ua> To: freebsd-amd64@FreeBSD.org Subject: Re: amd64/179376: xhci ehci irq storm Message-ID: <201308221650.r7MGo1sf095369@freefall.freebsd.org>
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The following reply was made to PR amd64/179376; it has been noted by GNATS.
From: tin <tin@tin.org.ua>
To: bug-followup@FreeBSD.org,michal@sviba.cz
Cc:
Subject: Re: amd64/179376: xhci ehci irq storm
Date: Thu, 22 Aug 2013 19:33:30 +0300
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The same issue on FreeBSD 9.1-RELEASE GENERIC amd64:
# uname -rsmi
FreeBSD 9.1-RELEASE amd64 GENERIC
#sysctl hw.usb.xhci.debug=3D16 ; sleep 1; sysctl hw.usb.xhci.debug=3D0
Aug 22 19:00:00 pedpresa-NEW kernel: interrupt storm detected on "irq16:"; =
throttling interrupt source
Aug 22 19:00:31 pedpresa-NEW last message repeated 31 times
Aug 22 19:02:32 pedpresa-NEW last message repeated 121 times
Aug 22 19:12:33 pedpresa-NEW last message repeated 601 times
Aug 22 19:16:53 pedpresa-NEW last message repeated 260 times
Aug 22 19:16:54 pedpresa-NEW kernel: xhci_interrupt: real interrupt (sts=3D=
0x00000000, iman=3D0x00000002)
Aug 22 19:16:54 pedpresa-NEW last message repeated 279 times
Aug 22 19:16:54 pedpresa-NEW kernel: interrupt storm detected on "irq16:"; =
throttling interrupt source
Aug 22 19:16:54 pedpresa-NEW kernel: xhci_interrupt: real interrupt (sts=3D=
0x00000000, iman=3D0x00000002)
Aug 22 19:16:55 pedpresa-NEW last message repeated 311 times
Aug 22 19:16:55 pedpresa-NEW kernel: interrupt storm detected on "irq16:"; =
throttling interrupt source
# vmstat -i
interrupt total rate
irq16: xhci0 ehci0 5588674976 53577
irq17: re0 1247393 11
irq23: ehci1 157524 1
cpu0:timer 15492154 148
irq264: hdac0 93 0
irq266: ahci1 903811 8
cpu1:timer 10026802 96
cpu7:timer 9218769 88
cpu4:timer 9207822 88
cpu2:timer 10149700 97
cpu6:timer 47883543 459
cpu5:timer 8447886 80
cpu3:timer 10476273 100
Total 5711886746 54758
# top -SHb 1000 | grep "intr{irq"
12 root -88 - 0K 368K istorm 3 363:26 0.88% intr{irq16: x=
hci0 ehc}
12 root -92 - 0K 368K WAIT 5 0:06 0.00% intr{irq17: r=
e0}
12 root -88 - 0K 368K WAIT 3 0:05 0.00% intr{irq266: =
ahci1}
12 root -88 - 0K 368K WAIT 0 0:00 0.00% intr{irq23: e=
hci1}
12 root -96 - 0K 368K WAIT 1 0:00 0.00% intr{irq264: =
hdac0}
12 root -84 - 0K 368K WAIT 0 0:00 0.00% intr{irq1: at=
kbd0}
12 root -84 - 0K 368K WAIT 0 0:00 0.00% intr{irq5: pp=
c1}
12 root -88 - 0K 368K WAIT 0 0:00 0.00% intr{irq265: =
ahci0}
#pciconf -lvc
xhci0@pci0:0:20:0: class=3D0x0c0330 card=3D0x50071458 chip=3D0x1e318086 rev=
=3D0x04 hdr=3D0x00
vendor =3D 'Intel Corporation'
device =3D 'Panther Point USB xHCI Host Controller'
class =3D serial bus
subclass =3D USB
cap 01[70] =3D powerspec 2 supports D0 D3 current D0
cap 05[80] =3D MSI supports 8 messages, 64 bit=20
---
ehci0@pci0:0:26:0: class=3D0x0c0320 card=3D0x50061458 chip=3D0x1e2d8086 rev=
=3D0x04 hdr=3D0x00
vendor =3D 'Intel Corporation'
device =3D 'Panther Point USB Enhanced Host Controller'
class =3D serial bus
subclass =3D USB
cap 01[50] =3D powerspec 2 supports D0 D3 current D0
cap 0a[58] =3D EHCI Debug Port at offset 0xa0 in map 0x14
cap 13[98] =3D PCI Advanced Features: FLR TP
--=20
#include <regards.h>
/* Pavel Shanaiev */
/* Mob. +38(050)7777850 */
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