Dominique Martinet c3dfb1663d page_fault_handler: do not try to fault addresses < 4k
There is no good reason to map these low addresses (userspace could with
mmap fixed, but that is grounds for many exploits...);

the main advantage however is if we do a null deref or close to (0->foo)
within a pagefault we will get a panic stack instead of getting a hang
because we cannot get some locks.
2017-10-13 10:02:11 +09:00
2017-10-13 10:02:11 +09:00
2014-09-17 19:59:37 +09:00
2017-09-20 16:37:05 +09:00
2017-09-20 16:37:05 +09:00
2017-10-13 10:02:11 +09:00
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