goofys.patch

diff --git a/internal/goofys.go b/internal/goofys.go
index 8ff0955..fb9cf20 100644
--- a/internal/goofys.go
+++ b/internal/goofys.go
@@ -683,7 +683,11 @@ func (fs *Goofys) insertInode(parent *Inode, inode *Inode) {
 		if inode.Id != 0 {
 			panic(fmt.Sprintf("inode id is set: %v %v", *inode.Name, inode.Id))
 		}
-		inode.Id = fs.allocateInodeId()
+		// inode.Id = fs.allocateInodeId()
+        inode.Id = fuseops.InodeID(makeInodeID(*inode.FullName()))
+        fuseLog.Debugf("new inode %d", inode.Id)
+
+
 		addInode = true
 	}
 	parent.insertChildUnlocked(inode)
diff --git a/internal/handles.go b/internal/handles.go
index cffa7de..a798d8a 100644
--- a/internal/handles.go
+++ b/internal/handles.go
@@ -15,7 +15,7 @@
 package internal
 
 import (
-	"fmt"
+	//"fmt"
 	"net/url"
 	"os"
 	"sort"
@@ -246,7 +246,11 @@ func (inode *Inode) DeRef(n uint64) (stale bool) {
 	inode.logFuse("DeRef", n, inode.refcnt)
 
 	if inode.refcnt < n {
-		panic(fmt.Sprintf("deref %v from %v", n, inode.refcnt))
+        inode.logFuse("Double DeRef race: (-%d from %d)", n, inode.refcnt)
+        inode.refcnt = 0
+        stale = true
+        return
+		// panic(fmt.Sprintf("deref %v from %v", n, inode.refcnt))
 	}
 
 	inode.refcnt -= n
diff --git a/internal/utils.go b/internal/utils.go
index 1a36b1d..fd8ace2 100644
--- a/internal/utils.go
+++ b/internal/utils.go
@@ -21,6 +21,7 @@ import (
 
 	"github.com/jacobsa/fuse"
 	"github.com/shirou/gopsutil/process"
+    "hash/fnv"
 )
 
 var TIME_MAX = time.Unix(1<<63-62135596801, 999999999)
@@ -176,3 +177,10 @@ func GetTgid(pid uint32) (tgid *int32, err error) {
 	}
 	return &tgidVal, nil
 }
+
+// use hash of name as inode modulo 2^63
+func makeInodeID(path string) uint64 {
+    hash := fnv.New64a()
+    hash.Write([]byte(path))
+    return hash.Sum64()
+}