Re: Re: unhandled page fault

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Hi...

Before going further, I believe this is on ARM architecture, right? OK, 
not much I can suggest...however...

> Ok so what functions should i use to synchronise my application with
> the kernel module?
> And when i call copy_to_user() and the user space pointer is invalid,
> it should return a
> negative value right (-EFAULT) and shouldnt give an unhandled page
> fault.

Perhaps what Arjan suggest is, try to check whether it is awaken because 
other code path wakes it or it is awaken by pending signal. In that 
case, try non-interruptible variant.

regards,

Mulyadi


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