netdev - Fw: [Bugme-new] [Bug 7696] New: b44 driver doesn't work under heavy load

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Message-Id: <20061217025028.0ca34e78.akpm@osdl.org>
Date:	Sun, 17 Dec 2006 02:50:28 -0800
From:	Andrew Morton <akpm@...l.org>
To:	netdev@...r.kernel.org
Cc:	zambrano@...adcom.com
Subject: Fw: [Bugme-new] [Bug 7696] New: b44 driver doesn't work under heavy
 load



Begin forwarded message:

Date: Sun, 17 Dec 2006 02:20:59 -0800
From: bugme-daemon@...zilla.kernel.org
To: bugme-new@...ts.osdl.org
Subject: [Bugme-new] [Bug 7696] New: b44 driver doesn't work under heavy load


http://bugzilla.kernel.org/show_bug.cgi?id=7696

           Summary: b44 driver doesn't work under heavy load
    Kernel Version: 2.6.20_rc1
            Status: NEW
          Severity: normal
             Owner: jgarzik@...ox.com
         Submitter: masterdriverz@...too.org
                CC: kernel@...too.org


First reported as a Gentoo bug[1] I also experience this problem. Under heavy
load (ie, downloading tarballs etc as opposed to browsing or irc) dmesg fills up
with these messages:

b44: eth0: Link is down.
b44: eth0: Link is up at 100 Mbps, full duplex.
b44: eth0: Flow control is off for TX and off for RX.

Also, ssh sessions cut out with 'Connection reset by peer' error, and downloads
often fail at this point.

lspci -v output:01:09.0 Ethernet controller: Broadcom Corporation BCM4401
100Base-T (rev 01)
        Subsystem: Dell Unknown device 8127
        Flags: bus master, fast devsel, latency 64, IRQ 18
        Memory at fe9fe000 (32-bit, non-prefetchable) [size=8K]
        Expansion ROM at 20080000 [disabled] [size=16K]
        Capabilities: [40] Power Management version 2

I currently have the b44 driver compiled into my kernel. The earliest kernel
I've reproduce this with is 2.6.15, though I can go back further if necessary.
This is still reproducible with 2.6.20_rc1.

[1] http://bugs.gentoo.org/show_bug.cgi?id=147722

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