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-rw-r--r--linux-user/mmap.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/linux-user/mmap.c b/linux-user/mmap.c
index aa5813f148..aa22006ff3 100644
--- a/linux-user/mmap.c
+++ b/linux-user/mmap.c
@@ -36,7 +36,7 @@
//#define DEBUG_MMAP
#if defined(USE_NPTL)
-pthread_mutex_t mmap_mutex;
+pthread_mutex_t mmap_mutex = PTHREAD_MUTEX_INITIALIZER;
static int __thread mmap_lock_count;
void mmap_lock(void)