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-rw-r--r--src/sys/arch/amd64/cpu/cpu_mp.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/sys/arch/amd64/cpu/cpu_mp.c b/src/sys/arch/amd64/cpu/cpu_mp.c
index 293e449..8d84b1f 100644
--- a/src/sys/arch/amd64/cpu/cpu_mp.c
+++ b/src/sys/arch/amd64/cpu/cpu_mp.c
@@ -31,6 +31,7 @@
#include <sys/param.h>
#include <sys/syslog.h>
#include <sys/panic.h>
+#include <sys/atomic.h>
#include <sys/cpuvar.h>
#include <sys/limits.h>
#include <os/kalloc.h>
@@ -72,7 +73,8 @@ ap_entry(struct limine_smp_info *)
cpu_conf(pcore);
cpu_init(pcore);
- corelist[ncores_up++] = pcore;
+ corelist[ncores_up - 1] = pcore;
+ atomic_inc_64(&ncores_up);
spinlock_release(&lock);
for (;;);
}