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fix: kernel and desktop bug fixes

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This commit is contained in:
Daniel Hammer
2026-05-14 11:31:14 +02:00
parent a7ff1f0a72
commit bb12aeb9b9
11 changed files with 507 additions and 106 deletions
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kernel/src/Sched/Scheduler.cpp
+7 -13
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@@ -243,21 +243,14 @@ namespace Sched {
return -1;
}
// Allocate kernel stack (used during syscalls and interrupts)
void* firstPage = Memory::g_pfa->AllocateZeroed();
if (firstPage == nullptr) {
Kt::KernelLogStream(Kt::ERROR, "Sched") << "Out of memory for kernel stack";
Memory::VMM::Paging::FreeUserHalf(pml4Phys);
Memory::g_pfa->Free((void*)Memory::HHDM(pml4Phys));
schedLock.Acquire();
processTable[slot].state = ProcessState::Free;
schedLock.Release();
return -1;
}
void* stackMem = Memory::g_pfa->ReallocConsecutive(firstPage, StackPages);
// Allocate kernel stack (used during syscalls and interrupts).
// ReallocConsecutive(nullptr, n) returns an n-page contiguous span;
// the previous code allocated a throwaway page first and asked
// ReallocConsecutive to migrate from it, which copied + freed the
// throwaway for no benefit and double-counted failure paths.
void* stackMem = Memory::g_pfa->ReallocConsecutive(nullptr, StackPages);
if (stackMem == nullptr) {
Kt::KernelLogStream(Kt::ERROR, "Sched") << "Failed to allocate contiguous kernel stack";
Memory::g_pfa->Free(firstPage);
Memory::VMM::Paging::FreeUserHalf(pml4Phys);
Memory::g_pfa->Free((void*)Memory::HHDM(pml4Phys));
schedLock.Acquire();
@@ -265,6 +258,7 @@ namespace Sched {
schedLock.Release();
return -1;
}
memset(stackMem, 0, StackPages * 0x1000);
uint8_t* kernelStackBase = (uint8_t*)stackMem;
uint64_t kernelStackTop = (uint64_t)kernelStackBase + StackSize;