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path: root/src/runtime/lfstack.go
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Diffstat (limited to 'src/runtime/lfstack.go')
-rw-r--r--src/runtime/lfstack.go4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/runtime/lfstack.go b/src/runtime/lfstack.go
index 4a20fff9d8..8a36a67b35 100644
--- a/src/runtime/lfstack.go
+++ b/src/runtime/lfstack.go
@@ -12,6 +12,10 @@ import "unsafe"
func lfstackpush(head *uint64, node *lfnode) {
node.pushcnt++
new := lfstackPack(node, node.pushcnt)
+ if node1, _ := lfstackUnpack(new); node1 != node {
+ println("runtime: lfstackpush invalid packing: node=", node, " cnt=", hex(node.pushcnt), " packed=", hex(new), " -> node=", node1, "\n")
+ gothrow("lfstackpush")
+ }
for {
old := atomicload64(head)
node.next, _ = lfstackUnpack(old)