Marcel Moolenaar 6e1f209af1 Don't use VM_MIN_KERNEL_ADDRESS to check if the faulting address is
in user space or kernel space. VM_MIN_KERNEL_ADDRESS starts after the
gateway page, which means that improper memory accesses to the gateway
page while in user mode would panic the kernel. Use VM_MAX_ADDRESS
instead. It ends before the gateway page. The difference between
VM_MIN_KERNEL_ADDRESS and VM_MAX_ADDRESS is exactly the gateway page.
2003-08-13 03:20:10 +00:00
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2003-07-01 15:52:06 +00:00