From owner-freebsd-stable  Fri Sep 21 17:59: 1 2001
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From: "Juha Saarinen" <juha@saarinen.org>
To: "'Lamont Granquist'" <lamont@scriptkiddie.org>,
	<stable@FreeBSD.ORG>
Subject: RE: xl0 tx underrun / watchdog errors
Date: Sat, 22 Sep 2001 12:58:33 +1200
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:: Sep 21 17:28:00 segflt /kernel: xl0: transmission error: 90
:: Sep 21 17:28:00 segflt /kernel: xl0: tx underrun, increasing 
:: tx start threshold to 900 bytes
:: Sep 21 17:28:01 segflt /kernel: xl0: transmission error: 90
:: Sep 21 17:28:01 segflt /kernel: xl0: tx underrun, increasing 
:: tx start threshold to 960 bytes
:: Sep 21 17:28:05 segflt /kernel: xl0: transmission error: 90
:: Sep 21 17:28:05 segflt /kernel: xl0: tx underrun, increasing 
:: tx start threshold to 1020 bytes
:: Sep 21 17:28:10 segflt /kernel: xl0: watchdog timeout
:: Sep 21 17:28:13 segflt /kernel: xl0: transmission error: 90
:: Sep 21 17:28:13 segflt /kernel: xl0: tx underrun, increasing 
:: tx start threshold to 120 bytes
:: Sep 21 17:28:18 segflt /kernel: xl0: watchdog timeout
:: Sep 21 17:28:20 segflt /kernel: xl0: transmission error: 90
:: Sep 21 17:28:20 segflt /kernel: xl0: tx underrun, increasing 
:: tx start threshold to 120 bytes

:: xl0: <3Com 3c556 Fast Etherlink XL> port 0xd400-0xd4ff mem 
:: 0xfbffd800-0xfbffd87f,0xfbffdc00-0xfbffdc7f irq 11 at device 
:: 16.0 on pci0
:: xl0: Ethernet address: 00:01:03:82:df:00
:: miibus0: <MII bus> on xl0

I believe this is the 3Com Fast Etherlink hardware bug manifesting
itself. I saw it with 4.3-RELEASE | -STABLE. It's in the archives, and
Donald Becker's mentioned it too.

-- 
Juha


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