0.pre8.75

[sbcl.git] / src / runtime / x86-arch.c

diff --git a/src/runtime/x86-arch.c b/src/runtime/x86-arch.c
index 2b03d7a..e080615 100644 (file)
--- a/src/runtime/x86-arch.c
+++ b/src/runtime/x86-arch.c
@@ -146,7 +146,7 @@ get_spinlock(lispobj *word,int value)
 {
     u32 eax=0;
     do {
-       asm ("xor %0,%0;cmpxchg %1,%2" 
+       asm ("xor %0,%0;lock cmpxchg %1,%2" 
             : "=a" (eax)
             : "r" (value), "m" (*word)
             : "memory", "cc");