Re: How to debug kernel Oops

["Bin Zhang" <yangtze31@gmail.com>]

On 3/26/06, Michael Schmitz <schmitz@zirkon.biophys.uni-duesseldorf.de> wrote:
> > Unable to handele kernel paging request for data at address 0x00000008
> > Faulting instruction address:0xe2709440
> > Oops : kernel acces of bad area, sig 11 [#1]
> > ...
> > ...
> > NIP [E2709440] ieee80211_master_star_xmit+0x6c/0x4bc [80211]
> > LR [E2709400] ieee80211_master_star_xmit+0x2c/0x4bc [80211]
> > Call Trace : ...
> > ...
> > -------------------------------
> >
> > How to find the problem and solve it ?
>
> Part 1:
>
> Disassemble the ieee80211_master_star_xmit function (locate the start
> address in the module from the symbol table, and use objdump -d), and
> compare with the C code. That should tell you what NULL pointer you need
> to deal with here.
>
> Part 2: figure out how a NULL pointer got passed in the first place.
>

Thank you very much.  This exceeds my competences.  I do not know
programming, I give up.

Best regards,
Bin

>         Michael
>
>