Re: Unable to handle kernel paging request at virtual address....

Erik Mouw (J.A.K.Mouw@its.tudelft.nl)
Sun, 11 Nov 2001 22:47:18 +0100


On Sat, Nov 10, 2001 at 04:23:03AM +0000, Femitha Majeed wrote:
> I am trying to write a kernel module which reads the files in the /proc
> directory.

The idea behind /proc is that it allows userland to read or write
certain kernel variables. You shouldn't read a /proc file from within
the kernel.

> When I do an insmod filename.o, I get the following error:
> Unable to handle kernel paging request at virtual address....
>
> In the module, I use kmalloc to allocate memory. Is that the reason I am
> getting this error?

Without having your source it's impossible to tell. Please read the
procfs guide in your kernel tree or at
http://www.kernelnewbies.org/documents/ .

> I am very new to writing kernel modules, I would really appreciate a reply.

Go to the www.kernelnewbies.org website and subscribe to the
kernelnewbies mailing list. The #kernelnewbies IRC channel is also
quite helpful.

Erik

-- 
J.A.K. (Erik) Mouw, Information and Communication Theory Group, Faculty
of Information Technology and Systems, Delft University of Technology,
PO BOX 5031, 2600 GA Delft, The Netherlands  Phone: +31-15-2783635
Fax: +31-15-2781843  Email: J.A.K.Mouw@its.tudelft.nl
WWW: http://www-ict.its.tudelft.nl/~erik/
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