Re: Why system call is returning -1 ??????

[Bernd Petrovitsch <bernd@xxxxxxxxx>]

On Thu, 2007-09-06 at 11:42 +0530, Harshal Sarode wrote:
[...] 
>  4) after compiling kernel , when i tried to call that system call , it returned me -1.

- What contains "errno" since it "errno" set in userspace if a sys-call returns -1?
- And what ist the value in the kernel you are returning (read: add a printk() in the
  sys-call to print it)?
- How many bits has the "long" there?

	Bernd 
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