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fixed a bug where uninitialized memory was used

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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
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5
kernel/arch/x86_64/interrupt.cpp
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@ -26,14 +26,17 @@ extern "C" cpu_state *handleINT(cpu_state *state) {
*out << "Interrupt ";
out->puti(state->intr);
*out << " occurred!\n";
cpu_state *new_cpu=state;
if (state->intr < 32) {
out->setColor(Color::RED);
print_regdump(state);
*out << "KERNEL PANIC: Unhandled CPU exception\n";
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) {
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 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() {
for(phys_t i=lowest_page; i<highest_page+1; i+=page_size) {
if(isFree(i))