From 5e88dab0eaef19c12f87986bcb8339c641fcbfa5 Mon Sep 17 00:00:00 2001
From: rudolfkoenig <rudolfkoenig@2b470e98-0d58-463d-a4d8-8e2adae1ed80>
Date: Wed, 23 Sep 2020 14:56:24 +0000
Subject: [PATCH] fhem.pl: more debug info for addToWritebuffer on closed FD
 (Forum #114425)

git-svn-id: https://svn.fhem.de/fhem/trunk@22831 2b470e98-0d58-463d-a4d8-8e2adae1ed80
---
 fhem/fhem.pl | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fhem/fhem.pl b/fhem/fhem.pl
index 2baaaca2a..b792c4f92 100755
--- a/fhem/fhem.pl
+++ b/fhem/fhem.pl
@@ -5368,7 +5368,8 @@ addToWritebuffer($$@)
   if(!defined($hash->{FD})) {
     my $n = $hash->{NAME};
     Log 1, "ERROR: addToWritebuffer for $n without FD";
-    Log 1, "probably caused at ".$hash->{stacktrace} if($hash->{stacktrace});
+    Log 1, "callstack:".stacktraceAsString(1);
+    Log 1, "FD closed in ".$hash->{stacktrace} if($hash->{stacktrace});
     delete($defs{$n});
     delete($attr{$n});
     return;