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x86_64: fix segfault not being delivered due to cow regression

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This commit is contained in:
K. Lange 2022-02-06 15:04:21 +09:00
parent af77c89c81
commit 097662ef3d
1 changed files with 2 additions and 3 deletions
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5
kernel/arch/x86_64/idt.c
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@ -516,9 +516,8 @@ static void _page_fault(struct regs * r) {
if ((r->err_code & 3) == 3) {
/* This is probably a COW page? */
extern void mmu_copy_on_write(uintptr_t address);
mmu_copy_on_write(faulting_address);
return;
extern int mmu_copy_on_write(uintptr_t address);
if (!mmu_copy_on_write(faulting_address)) return;
}
/* Was this a kernel page fault? Those are always a panic. */