On Aug 15, 2013, at 2:33 PM, Chris Wright <chr...@sous-sol.org> wrote: > Andrei Andone reported an oops on CentOS 6.4 when adding a device to an > ovs instance. The problem is easy to reproduce and generates the > following stack trace: > > kernel tried to execute NX-protected page - exploit attempt? (uid: 0) > BUG: unable to handle kernel paging request at ffff88033afa49c0 > IP: [<ffff88033afa49c0>] 0xffff88033afa49c0 > ... > Call Trace: > <IRQ> > [<ffffffff814487ba>] ? __netif_receive_skb+0x60a/0x750 > [<ffffffff81055f96>] ? enqueue_task+0x66/0x80 > [<ffffffff8144aa38>] netif_receive_skb+0x58/0x60 > [<ffffffff8144ab40>] napi_skb_finish+0x50/0x70 > [<ffffffff8144d0e9>] napi_gro_receive+0x39/0x50 > [<ffffffffa025f46c>] igb_poll+0x7ec/0xc70 [igb] > [<ffffffff810e6881>] ? cpu_quiet_msk+0xc1/0x130 > ... > > As you can see, we jumped to data rather than code. This is caused by > a mistake in the compat code for netdev_rx_handler_register which sets > the handler to rx_handler_data rather than rx_handler. This was > introduced by commit "3e35fe3 datapath: rhel: Move RHEL OVS hook > registration to netdev_rx_handler_register() backport". > > Reported-by: Andrei Andone <andrei.and...@softvision.ro> > Signed-off-by: Chris Wright <chr...@sous-sol.org> > Cc: Thomas Graf <tg...@redhat.com> > Cc: Pravin Shelar <pshe...@nicira.com>
Looks good to me Chris. Acked-by: Kyle Mestery <kmest...@cisco.com> _______________________________________________ dev mailing list dev@openvswitch.org http://openvswitch.org/mailman/listinfo/dev
