tasking: fix stack corruption on the scheduler trigger

2025-08-20 20:59:08 +03:00
parent 9fdc551308
commit 92511dbcd7
2 changed files with 6 additions and 1 deletions
@@ -32,6 +32,9 @@ Process* task_create(uint32_t func, uint32_t user_esp, uint32_t ring, uint32_t*
    p->kstack = (char*)((uint32_t)kstack_physical+0xC0000000);
    map_page(kstack_physical, p->kstack, PAGE_PRESENT | PAGE_RW);
    debug_log("kstack: %X!!!!!!!!!!!!\n", p->kstack);
+
+    p->kstack_top = (uint32_t)p->kstack + KSTACKSIZE;
+
    uint8_t* sp = (uint8_t*)(p->kstack + KSTACKSIZE);

    sp -= sizeof(TrapFrame);
@@ -146,7 +149,7 @@ void schedule() {
    }

    if (next && next != current) {
-        tss.esp0 = next->kesp;
+        tss.esp0 = next->kstack_top;
        switchProcess(next);
    }