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Message-Id: <14130884-5927-4B8D-A52E-56C245D8225B@virtualcomputer.com>
Date:	Fri, 6 May 2011 12:57:47 -0400
From:	Tom Goetz <tom.goetz@...tualcomputer.com>
To:	netdev@...r.kernel.org
Subject: For the netdev list

We recently obtained a new a Lenovo Edge 0578-CTO. The r8169 driver causes instability in the system on this machine. The problem is that in rtl8169_rx_interrupt (status & 0x00001FFF) returns values less than four on this machine. This results in this line:

int pkt_size = (status & 0x00001FFF) - 4;

giving a huge packet size which causes problem when the packet is copied. For a work around we've added a patch to drop packets when we see this condition. I have attached lspci -vvv for this device and a patch for the work around we're using.

-Tom Goetz

Download attachment "r8168_lspci.log" of type "application/octet-stream" (3293 bytes)

Download attachment "rtl8169.patch" of type "application/octet-stream" (653 bytes)