Celina's Git — CeDOS: 1563a589a98e25b84131adab9b3a60e8f49c7c00

sched: hotfix kill not working Due to the new sleep function, the process state "terminated" can get overridden. To avoid this, only unblock a process if its pstate is "blocked".

Celina Sophie Kalus

hello@celinakalus.de

Sat, 09 Dec 2023 21:13:58 +0100

commit 1563a589a98e25b84131adab9b3a60e8f49c7c00

parent dd95d2cfe40e8da02d8605a29de6e81f8a20c7bd

1 files changed, 5 insertions(+), 1 deletions(-)

jump to

kernel/sched/sched.c

M kernel/sched/sched.c → kernel/sched/sched.c

@@ -250,7 +250,11 @@ }
 
 void sched_unblock(int pid) {
     PROCESS *process = get_process(pid);
-    process->state = PSTATE_READY;
+    
+    // only unblock previously blocked processes
+    if (process->state == PSTATE_BLOCKED) {
+        process->state = PSTATE_READY;
+    }
 }
 
 int sched_kill(PROCESS_ID pid) {