src/os_cpu/linux_x86/vm/linux_x86_64.s

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@@ -62,11 +62,11 @@
 
         .globl SpinPause
         .align 16
         .type  SpinPause,@function
 SpinPause:
-        rep
+        nop
         nop
         movq   $1, %rax
         ret
 
         # Support for void Copy::arrayof_conjoint_bytes(void* from,