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authorJakob Unterwurzacher2020-09-09 18:18:37 +0200
committerJakob Unterwurzacher2020-09-09 18:18:37 +0200
commitdb61ec5115f6d2ae0e9dfcf2b87163221a969f6b (patch)
treea95c5274ea0db1d638219a3956c308c980f1d364 /tests/matrix
parent6577f1b1463137e5c1912d1778b736ed4e64f89f (diff)
tests: add TestInoReuse
Diffstat (limited to 'tests/matrix')
-rw-r--r--tests/matrix/concurrency_test.go57
1 files changed, 57 insertions, 0 deletions
diff --git a/tests/matrix/concurrency_test.go b/tests/matrix/concurrency_test.go
index 205becb..24d4578 100644
--- a/tests/matrix/concurrency_test.go
+++ b/tests/matrix/concurrency_test.go
@@ -127,3 +127,60 @@ func TestConcurrentReadCreate(t *testing.T) {
}()
wg.Wait()
}
+
+// TestInoReuse tries to uncover problems when a file gets replaced by
+// a directory with the same inode number (and vice versa).
+//
+// So far, it only has triggered warnings like this
+//
+// go-fuse: warning: Inode.Path: inode i4201033 is orphaned, replacing segment with ".go-fuse.5577006791947779410/deleted"
+//
+// but none of the "blocked waiting for FORGET".
+func TestInoReuse(t *testing.T) {
+ var wg sync.WaitGroup
+ fn := test_helpers.DefaultPlainDir + "/" + t.Name()
+
+ wg.Add(1)
+ go func() {
+ for i := 0; i < 1000; i++ {
+ fd, err := syscall.Creat(fn, 0600)
+ if err == syscall.EISDIR {
+ continue
+ }
+ if err != nil {
+ t.Error(err)
+ break
+ }
+ var st syscall.Stat_t
+ syscall.Fstat(fd, &st)
+ if i%2 == 0 {
+ syscall.Close(fd)
+ syscall.Unlink(fn)
+ } else {
+ syscall.Unlink(fn)
+ syscall.Close(fd)
+
+ }
+ }
+ wg.Done()
+ }()
+
+ wg.Add(1)
+ go func() {
+ for i := 0; i < 1000; i++ {
+ err := syscall.Mkdir(fn, 0700)
+ if err == syscall.EEXIST {
+ continue
+ }
+ if err != nil {
+ t.Error(err)
+ break
+ }
+ var st syscall.Stat_t
+ syscall.Stat(fn, &st)
+ syscall.Rmdir(fn)
+ }
+ wg.Done()
+ }()
+ wg.Wait()
+}