Date: Fri, 9 Feb 2001 17:46:14 -0700 (MST) From: howard@elen.utah.edu To: FreeBSD-gnats-submit@freebsd.org Subject: kern/24978: Intermittent driver problem Message-ID: <20010210004614.EE2F049@ee.elen.utah.edu>
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>Number: 24978
>Category: kern
>Synopsis: "dc" network interface goes into continuous reset
>Confidential: no
>Severity: serious
>Priority: low
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Fri Feb 09 16:50:02 PST 2001
>Closed-Date:
>Last-Modified:
>Originator: Walt Howard
>Release: FreeBSD 4.1.1-RELEASE i386
>Organization:
University of Utah Electrical Engineering Dept
>Environment:
Dual-Pentium motherboard, both (450 MHz) Pentiums installed
PCI bus
two installed Ethernet/Fast-Ethernet interface cards, using the
Intel 21143 chip, and controlled by the dc driver. I have not
observed this problem on our smaller 1-cpu boxes that have only
one such network interface card.
>Description:
After some period of time (90 days in the latest case, but
sometimes less than one day), one of the interface cards begins
reporting "watchdog timeout" at roughly one-second intervals.
The driver code suggests that this message is associated with
resetting the entire interface, and it cannot be pinged from
other computers while in this state. The problem seemed worse
with earlier releases of FreeBSD. This does not panic the
kernel or have a noticeable effect on other processes.
>How-To-Repeat:
Boot up computer. Watch system log.
>Fix:
Replace network interface with a different kind that takes a
different driver? I like the Tulip interfaces; they and their
driver provide more interesting information in my system logs
when anything odd is on my network, than do other interfaces.
>Release-Note:
>Audit-Trail:
>Unformatted:
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