From mboxrd@z Thu Jan 1 00:00:00 1970 From: Michael Leun Subject: 2.6.35 -> 2.6.36 panic when vlan and promisc with tg3 Date: Mon, 29 Nov 2010 20:17:16 +0100 Message-ID: <20101129201716.1d0257c4@xenia.leun.net> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit To: linux-kernel@vger.kernel.org, netdev@vger.kernel.org Return-path: Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org Hi, only kernel message I was able to capture on serial were: UG: unable to handle kernel paging request at 01cc921c IP: [] vlan_hwaccel_do_receive+0x59/0xd0 *pdpt = 0000000036a2a001 *pde = 0000000000000000 Oops: 0002 [#1] SMP last sysfs Then machine dead. In 2.6.35.x this did not happen (but vlans broken - cannot see vlan tags with tcpdump), To reproduce: ip link set eth0 up vconfig add eth0 2 ip link set eth0 promisc on Machines with these ethernet cards I've seen to be affected: Ethernet controller: Broadcom Corporation NetXtreme BCM5714 Gigabit Ethernet (rev a3) Ethernet controller: Broadcom Corporation NetXtreme BCM5752M Gigabit Ethernet PCI Express (rev 02) Machine with this card is NOT affected (no vlan hw accel?): Ethernet controller: Broadcom Corporation NetLink BCM5906M Fast Ethernet PCI Express (rev 02) -- MfG, Michael Leun