From 7dea6dfa66678a7be4b51083c0ffde40b2e63604 Mon Sep 17 00:00:00 2001
From: Dmitry Kovba <dkovba@apple.com>
Date: Thu, 19 Feb 2026 19:43:37 -0800
Subject: [PATCH] Downgrade a relay error to a warning (#545)

- This PR downgrades a relay error that might be
  logged when a connection is closed to a warning.
- Related PR in apple/container#1238.
---
 .../ContainerizationOS/Socket/BidirectionalRelay.swift   | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/Sources/ContainerizationOS/Socket/BidirectionalRelay.swift b/Sources/ContainerizationOS/Socket/BidirectionalRelay.swift
index 52d5d6ee..728a9937 100644
--- a/Sources/ContainerizationOS/Socket/BidirectionalRelay.swift
+++ b/Sources/ContainerizationOS/Socket/BidirectionalRelay.swift
@@ -211,7 +211,14 @@ public final class BidirectionalRelay: Sendable {
                 to: destinationFd
             )
         } catch {
-            log?.error("file descriptor copy failed \(error)")
+            log?.warning(
+                "file descriptor copy failed",
+                metadata: [
+                    "error": "\(error)",
+                    "sourceFd": "\(sourceFd)",
+                    "destinationFd": "\(destinationFd)",
+                ]
+            )
             if !source.isCancelled {
                 source.cancel()
                 if shutdown(destinationFd, Int32(SHUT_RDWR)) != 0 {