Messages in this thread | | | Date | Tue, 3 Jul 2001 16:45:32 +0200 (CEST) | From | Guillaume Lancelin <> | Subject | Memory access |
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Writing a device driver for a IO card, I have the following message from the kernel: Unable to handle kernel paging request at virtual address 000d0804. [then it gives the register values] Segmentation fault."
This address (0xd0804) is the location of a "mailbox" reserved by the IO card, and from which commands are passed to the card.
My question: is the kernel using or protecting this area of the memory, and is there a way to deprotect it??? (how dangerous!)
Thanks Guillaume
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