On 2/16/06, Matthew Dillon <[EMAIL PROTECTED]> wrote: > Device drivers need a stable KVA-mapped memory. It only seems > to work with the pointer to user memory because the user memory > happened to be faulted in for the duration of the I/O and > because the I/O happened to occur in the context of the user process. > This isn't always going to be the case with a device write.
ok, that makes sense. thanks!
