Patch wireguard-go for low memory pods

kisel · web-flow · commit 2e170aeaa184 · 2025-07-26T20:32:58.000+07:00
Patch wireguard-go to workaround ongoing issue related to pods with low memory limits OOMing due to wireguard-go buffer/gc issues. Related to WireGuard#69 Signed-off-by: Anton Kiselev <anton.kisel@gmail.com>
diff --git a/device/queueconstants_default.go b/device/queueconstants_default.go
@@ -15,5 +15,5 @@ const (
 	QueueInboundSize           = 1024
 	QueueHandshakeSize         = 1024
 	MaxSegmentSize             = (1 << 16) - 1 // largest possible UDP datagram
-	PreallocatedBuffersPerPool = 0             // Disable and allow for infinite memory growth
+	PreallocatedBuffersPerPool = 4096
 )

Original file line number	Diff line number	Diff line change
`@@ -15,5 +15,5 @@ const (`
`15`	`15`	`QueueInboundSize = 1024`
`16`	`16`	`QueueHandshakeSize = 1024`
`17`	`17`	`MaxSegmentSize = (1 << 16) - 1 // largest possible UDP datagram`
`18`		`- PreallocatedBuffersPerPool = 0 // Disable and allow for infinite memory growth`
	`18`	`+ PreallocatedBuffersPerPool = 4096`
`19`	`19`	`)`