Problems with hostap-driver 0.1.2 and Linux 2.4.22

Andre Berger uzscd5
Fri Nov 21 10:45:44 PST 2003

* Jouni Malinen <jkmaline at>, 2003-11-21 12:42 -0500:
> On Thu, Nov 20, 2003 at 11:37:01AM -0500, Andre Berger wrote:
> > Unable to handle kernel NULL pointer dereference at virtual address 00000004
> >  printing eip:
> > c0113001

The problem is solved. The stock Debian woody kernel is compiled with
gcc-2.95, and this was also the default compiler on my system. The
2.4.22 from a third-party source is compiled with gcc-3.3, and the
compilation of hostap-driver using gcc-2.95 against it caused the
panic. Using gcc-3.3, everything is fine, in fact, I'm using
hostap-driver right now.  

> Could you please pipe that oops message through ksymoops and send the
> output (i.e., resolve these addresses into symbols)? Without this, the
> oops message is unfortunately quite useless. You can get more
> information of how to do this from Documentation/oops-tracing.txt of the
> Linux kernel tree.

I could still do this if desired. 

> > EIP:    0010:[<c0113001>]    Tainted: PF
> Could you please also describe which modules were loaded? I would
> appreciate it if you could reproduce this problem without having first
> tainted the kernel with proprietary modules and/or using forced insmod..

There were no proprietary modules loaded, to my bestknowledge. 


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