Subject: kern/18820: ohci0: scheduling overruns
To: None <gnats-bugs@gnats.netbsd.org>
From: Christian Biere <christianbiere@gmx.de>
List: netbsd-bugs
Date: 10/26/2002 22:26:37
>Number:         18820
>Category:       kern
>Synopsis:       ohci0: scheduling overruns
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sat Oct 26 13:27:00 PDT 2002
>Closed-Date:
>Last-Modified:
>Originator:     Christian Biere
>Release:        NetBSD 1.6J
>Organization:
       
>Environment:
NetBSD localhost 1.6J NetBSD 1.6J (GENERIC) #1: Sat Oct 26
07:22:10 CEST 2002   root@localhost:/usr/src/sys/arch/i386/compile/GENERIC

>Description:
I own a K7S5a mainboard and I get such a message about once per 10
minutes on the console:

ohci1: 3 scheduling overruns
ohci0: 1 scheduling overruns
ohci1: 1 scheduling overruns
ohci0: 1 scheduling overruns
ohci1: 1 scheduling overruns
[...]
etc.

I don't have anything attached to the USB ports. So I don't even know if
they work. Should I worry about this message? If not, shouldn't the
message be suppressed?

Here are some lines from /var/run/dmesg.boot:

pci0 at mainbus0 bus 0: configuration mode 1
pci0: i/o space, memory space enabled, rd/line, rd/mult, wr/inv ok
pchb0 at pci0 dev 0 function 0
pchb0: Silicon Integrated System SiS 735 Host Bridge (rev. 0x01)
pci1: memory space enabled
pcib0 at pci0 dev 2 function 0
pcib0: Silicon Integrated System 85C503 or 5597/5598 ISA bridge (rev.
0x00) ohci0 at pci0 dev 2 function 2: Silicon Integrated System 5597/5598
USB host controller (rev. 0x07)
ohci0: interrupting at irq 5
ohci0: OHCI version 1.0, legacy support
usb0 at ohci0: USB revision 1.0
uhub0 at usb0
uhub0: Silicon Integra OHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 3 ports with 3 removable, self powered
ohci1 at pci0 dev 2 function 3: Silicon Integrated System 5597/5598 USB
host controller (rev. 0x07)
ohci1: interrupting at irq 11
ohci1: OHCI version 1.0, legacy support
usb1 at ohci1: USB revision 1.0
uhub1 at usb1
uhub1: Silicon Integra OHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub1: 3 ports with 3 removable, self powered

>How-To-Repeat:

>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted: