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-rw-r--r--userfs.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/userfs.c b/userfs.c
index 25dfaf5..d1cd49e 100644
--- a/userfs.c
+++ b/userfs.c
@@ -20,6 +20,10 @@ main(void)
printf(stdout, "userfs is running\n");
+ if (sbrk(4096) < 0) {
+ printf(stdout, "sbrk failed\n");
+ }
+
fd = open("echo", 0);
if(fd >= 0){
printf(stdout, "open echo ok\n");