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-rw-r--r--sys/kern/uipc_usrreq.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/sys/kern/uipc_usrreq.c b/sys/kern/uipc_usrreq.c
index 286f07c..439cd7d 100644
--- a/sys/kern/uipc_usrreq.c
+++ b/sys/kern/uipc_usrreq.c
@@ -1614,6 +1614,7 @@ unp_gc(void)
LIST_FOREACH(fp, &filehead, f_list)
fp->f_gcflag &= ~(FMARK|FDEFER);
do {
+ KASSERT(unp_defer >= 0, ("unp_gc: unp_defer %d", unp_defer));
LIST_FOREACH(fp, &filehead, f_list) {
FILE_LOCK(fp);
/*
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