Re: Handle kernel page faults using task gate

[Ingo Molnar]

* eliad lubovsky <eliadl@xxxxxxx> wrote:

> I am trying to handle page faults exceptions in the kernel using the 
> task gate mechanism. I succeeded to transfer the execution to my page 
> fault handler using a new TSS and updates to the GDT and IDT tables 
> (similar to the double fault mechanism in 2.6). After handling the 
> fault and allocating the physical page I use the iret instruction to 
> switch back to the previous task. The problem is that I got a double 
> fault with the same address that cause the fault (although the 
> physical page is allocated and mapped). Any clues?

are you clearing the 'nested task' (NT) flag of the new TSS once you 
have switched to it?

	Ingo
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