darkkirb/mtgos-mtgos-3ds9
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

fixed a bug where uninitialized memory was used

Browse source
This commit is contained in:
Morten Delenk 2017-07-24 12:36:45 +01:00
parent cf16b1c37c
commit 7d6c2a0dd1
2 changed files with 5 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

5
kernel/arch/x86_64/interrupt.cpp
View file

@ -26,14 +26,17 @@ extern "C" cpu_state *handleINT(cpu_state *state) {
*out << "Interrupt "; *out << "Interrupt ";
out->puti(state->intr); out->puti(state->intr);
*out << " occurred!\n"; *out << " occurred!\n";
cpu_state *new_cpu=state;
if (state->intr < 32) { if (state->intr < 32) {
out->setColor(Color::RED); out->setColor(Color::RED);
print_regdump(state); print_regdump(state);
*out << "KERNEL PANIC: Unhandled CPU exception\n"; *out << "KERNEL PANIC: Unhandled CPU exception\n";
for (;;) for (;;)
; ;
} else if(state->intr < 48) {
new_cpu=(cpu_state*)irqs->handleIRQ(new_cpu);
} }
return state; return new_cpu;
} }
extern "C" void panic2(cpu_state *state) { extern "C" void panic2(cpu_state *state) {
state->rsp = (uintptr_t)state; state->rsp = (uintptr_t)state;

2
kernel/src/pmm.cpp
View file

@ -11,7 +11,7 @@ auto PMM::isFree(phys_t addr) -> bool {
return false; return false;
return true; return true;
} }
PMM::PMM(phys_t page_size): page_size(page_size), head(nullptr) {} PMM::PMM(phys_t page_size): page_size(page_size), head(nullptr), lowest_page(~0), highest_page(0) {}
void PMM::fill() { void PMM::fill() {
for(phys_t i=lowest_page; i<highest_page+1; i+=page_size) { for(phys_t i=lowest_page; i<highest_page+1; i+=page_size) {
if(isFree(i)) if(isFree(i))