OT: looking for resources

[Don Raikes]

Wow,  this group is great!

I got my kmalloc to work, figured out I had the test for success backward :-(

Now that I have memory allocated, I am trying to copy a character array from userspace into kernel space with the command:

If (copy_from_user(&tbuf, buf, count))

Which according to my printk statements succeeds. However, I then get a kernel page fault and the whole thing comes crashing down.
Any suggestions on how to debug this?
The only thing I can see in the dump is that it looks like it is in kfree.
-----Original Message-----
From: Jason White [mailto:jason at jasonjgw.net] 
Sent: Wednesday, July 17, 2013 9:15 PM
To: speakup at linux-speakup.org
Subject: Re: OT: looking for resources

Chris Brannon <chris at the-brannons.com> wrote:
 
> The Linux Device Drivers book is on Bookshare as well.
> If I remember correctly, Understanding the Linux Kernel explains 
> kernel internals, rather than the procedures involved in kernel programming.

It has been used by the authors to teach an operating system course, if I remember rightly.
> In other words, Understanding the Linux Kernel deals with theory, and 
> Linux Device Drivers deals with practice.
> That's how it looked to me, at least.
> I suspect that the two texts complement each other very well.

There is also, from the same source, Christian Benvenuti, Understanding Linux Network Internals (O'Reilly).

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