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7 commits

Author SHA1 Message Date
Jonas 'Sortie' Termansen
93a9ee334d Removed a debug ifdef that isn't used. 2012-03-02 14:25:48 +01:00
Jonas 'Sortie' Termansen
5e5991ce19 Fixed x86 addrspace destroy code calling Page::Put with garbage. 2012-03-02 13:45:33 +01:00
Jonas 'Sortie' Termansen
0515111314 The initial ramdisk is now mapped onto a special location.
This fixes issues where it did not fit into the first few MiB,
or that GRUB loaded it someplace weird.

The kernel heap is now also protected against growing into the
ramdisk and the kernel stack.
2011-12-22 14:13:18 +01:00
Jonas 'Sortie' Termansen
0b1c2a77c9 x64 now compiles again and runs on real hardware.
A nasty bug was fixed that caused triple faults on systems with > 1 GiB RAM.
2011-11-29 01:31:54 +01:00
Jonas 'Sortie' Termansen
4f3a7230b0 Destroying the addressspace after exit prevents leak of at least 16 KiB. 2011-11-27 12:02:34 +01:00
Jonas 'Sortie' Termansen
b0df5186e6 Fixed two very nasty bugs in the x86 memory management code.
1) The PML2 was not initialized to zeroes, thus leaving some bits behind that
caused the fork code to go crazy, forking the unforkable, and mapping addresses
that never, ever, should have been mapped, leaving behind a trail of page faults
and general protection faults on some computers, while other computers worked
because the uninitalized memory just wasn't uninitialized enough. Yep, this was
a schrödinbug!

2) Fixed a time bomb. The kernel heap was accidentally put such that whenever a
few megabytes were allocated, it would begin overwriting the physical page stack
causing unthinkable events to unfold and would probably be even more obscure to
debug than 1).

Oh, and some string errors fixed and removed RunApplication from kernel.cpp,
funny thing that even linked in the first place. Guess, the optimizer actually
did work for once. :)
2011-10-20 03:52:08 +02:00
Jonas 'Sortie' Termansen
66192d1e86 Rewrote memory management again and added support for x64 and forking. 2011-10-10 01:02:57 +02:00