cowtest passed

2025-07-01 20:31:29 +08:00
parent bc8921a77f
commit bef91a3bf0
8 changed files with 161 additions and 47 deletions
--- a/kernel/trap.c
+++ b/kernel/trap.c
@@ -67,6 +67,8 @@ usertrap(void)
    syscall();
  } else if((which_dev = devintr()) != 0){
    // ok
+  } else if((r_scause() == 15 || r_scause() == 13) && iscowpage(r_stval())){
+    startcowcopy(r_stval());
  } else {
    printf("usertrap(): unexpected scause 0x%lx pid=%d\n", r_scause(), p->pid);
    printf("            sepc=0x%lx stval=0x%lx\n", r_sepc(), r_stval());