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-rw-r--r--sys/kern/kern_fork.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/sys/kern/kern_fork.c b/sys/kern/kern_fork.c
index 723fd62..db4a459 100644
--- a/sys/kern/kern_fork.c
+++ b/sys/kern/kern_fork.c
@@ -463,7 +463,7 @@ again:
*/
proc_linkup(p2, kg2, ke2, td2);
- mtx_init(&p2->p_mtx, "process lock", MTX_DEF);
+ mtx_init(&p2->p_mtx, "process lock", MTX_DEF|MTX_DUPOK);
PROC_LOCK(p2);
/* note.. XXXKSE no pcb or u-area yet */
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