On 03/18/2012 02:29 AM, 林守磊 wrote: > Hi~ > > I drive my bcm4312 by module b43 and firmware , learned from > http://linuxwireless.org/en/users/Drivers/b43 It is drive > successfully, but when I start my openvpn , it looks like that the > kernel is crashed. > The kernel log : > > [13446.745188] sched: RT throttling activated > [15653.842657] tun: Universal TUN/TAP device driver, 1.6 > [15653.842661] tun: (C) 1999-2004 Max Krasnyansky <[email protected] > <mailto:[email protected]>> > [15653.843275] BUG: unable to handle kernel NULL pointer dereference at > (null)
That's a bug in the kernel, so my first step would be to try the most recent kernel, hoping that the bug has already been fixed upstream. If the most recent kernel crashes the same way, then I would try older kernels, hoping to find where the bug first appeared. > [15653.843314] Pid: 9677, comm: openvpn Tainted: P O > 3.2.9-gentoo-Shelley #1 LENOVO IdeaPad Y450 > /KL1 The word "Tainted" refers to your nvidia driver (see below). Some kernel developers may refuse to accept a bug report if they see the word "Tainted", but I've never had a bug report refused for that reason. You can get rid of the "Tainted" by using an open-source driver like nouveau or the old 'nv' if you have trouble getting a bug report accepted by a kernel developer. > # lsmod > Module Size Used by > nvidia 12229445 43
