Messages in this thread | | | Date | Tue, 30 Nov 2010 09:59:44 +0100 | From | Michael Leun <> | Subject | Re: 2.6.35 -> 2.6.36 panic when vlan and promisc with tg3 |
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On Mon, 29 Nov 2010 16:19:06 -0800 Ben Greear <greearb@candelatech.com> wrote:
> On 11/29/2010 11:17 AM, Michael Leun wrote: > > UG: unable to handle kernel paging request at 01cc921c > > IP: [<c034bfce>] 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), > > Try this patch: > > http://permalink.gmane.org/gmane.linux.network/176566 > > It looks like this hasn't made it into stable yet?
> > To reproduce: > > > > ip link set eth0 up > > vconfig add eth0 2 > > ip link set eth0 promisc on
It makes it better - it does not crash anymore on this commands - but if you add an "tcpdump -i eth0 -n" at the end it does. So, unfortunately no real solution.
I guess, "dropping packet no one is interested in" (as noted in the patch) does not work very well if tcpdump is actually interested?
-- MfG,
Michael Leun
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