diff --git a/test/known_failures_Linux.json b/test/known_failures_Linux.json
index b05f61c..2293c5c 100644
--- a/test/known_failures_Linux.json
+++ b/test/known_failures_Linux.json
@@ -1,14 +1,12 @@
 [
-  "c_glib-rb_binary-accel_buffered-ip",
-  "c_glib-rb_binary-accel_framed-ip",
-  "c_glib-rb_binary_buffered-ip",
-  "c_glib-rb_binary_framed-ip",
   "cpp-cpp_binary_http-domain",
   "cpp-cpp_binary_http-ip",
   "cpp-cpp_compact_http-domain",
   "cpp-cpp_header_http-domain",
   "cpp-cpp_header_http-ip",
   "cpp-cpp_json_http-ip",
+  "cpp-dart_binary_http-ip",
+  "cpp-dart_json_http-ip",
   "cpp-hs_json_buffered-ip",
   "cpp-hs_json_framed-ip",
   "cpp-hs_json_http-ip",
@@ -18,8 +16,8 @@
   "cpp-java_compact_http-ip-ssl",
   "cpp-java_json_http-ip",
   "cpp-java_json_http-ip-ssl",
-  "cpp-nodejs_json_buffered-ip-ssl",
-  "cpp-rb_json_buffered-ip",
+  "cpp-perl_binary_buffered-ip-ssl",
+  "cpp-perl_binary_framed-ip-ssl",
   "csharp-cpp_binary_buffered-ip-ssl",
   "csharp-cpp_binary_framed-ip-ssl",
   "csharp-cpp_compact_buffered-ip-ssl",
@@ -42,19 +40,18 @@
   "csharp-nodejs_binary_framed-ip-ssl",
   "csharp-nodejs_compact_buffered-ip-ssl",
   "csharp-nodejs_compact_framed-ip-ssl",
-  "csharp-nodejs_json_buffered-ip",
   "csharp-nodejs_json_buffered-ip-ssl",
   "csharp-nodejs_json_framed-ip-ssl",
+  "csharp-perl_binary_buffered-ip-ssl",
+  "csharp-perl_binary_framed-ip-ssl",
   "erl-cpp_compact_buffered-ip",
   "erl-cpp_compact_buffered-ip-ssl",
   "erl-cpp_compact_framed-ip",
   "erl-cpp_compact_framed-ip-ssl",
-  "erl-go_binary_buffered-ip-ssl",
-  "erl-go_binary_framed-ip-ssl",
-  "erl-go_compact_buffered-ip-ssl",
-  "erl-go_compact_framed-ip-ssl",
   "erl-nodejs_binary_buffered-ip",
   "erl-nodejs_compact_buffered-ip",
+  "erl-perl_binary_buffered-ip-ssl",
+  "erl-perl_binary_framed-ip-ssl",
   "erl-rb_binary-accel_buffered-ip",
   "erl-rb_binary-accel_framed-ip",
   "erl-rb_binary_buffered-ip",
@@ -92,24 +89,30 @@
   "java-hs_json_buffered-ip",
   "java-hs_json_fastframed-framed-ip",
   "java-hs_json_framed-ip",
-  "nodejs-csharp_compact_buffered-ip-ssl",
-  "nodejs-csharp_compact_framed-ip-ssl",
-  "nodejs-csharp_json_buffered-ip",
-  "nodejs-csharp_json_buffered-ip-ssl",
-  "nodejs-csharp_json_framed-ip",
-  "nodejs-csharp_json_framed-ip-ssl",
+  "java-perl_binary_buffered-ip-ssl",
+  "java-perl_binary_fastframed-framed-ip-ssl",
+  "java-perl_binary_framed-ip-ssl",
   "nodejs-hs_binary_buffered-ip",
   "nodejs-hs_binary_framed-ip",
   "nodejs-hs_compact_buffered-ip",
   "nodejs-hs_compact_framed-ip",
   "nodejs-hs_json_buffered-ip",
   "nodejs-hs_json_framed-ip",
-  "nodejs-rb_json_buffered-ip",
+  "nodejs-perl_binary_buffered-ip-ssl",
+  "nodejs-perl_binary_framed-ip-ssl",
+  "perl-perl_binary_buffered-ip-ssl",
+  "perl-perl_binary_framed-ip-ssl",
   "perl-php_binary_framed-ip",
   "py-hs_json_buffered-ip",
   "py-hs_json_framed-ip",
+  "py-perl_accel-binary_buffered-ip-ssl",
+  "py-perl_accel-binary_framed-ip-ssl",
+  "py-perl_binary_buffered-ip-ssl",
+  "py-perl_binary_framed-ip-ssl",
   "py3-hs_json_buffered-ip",
   "py3-hs_json_framed-ip",
+  "py3-perl_binary_buffered-ip-ssl",
+  "py3-perl_binary_framed-ip-ssl",
   "rb-hs_json_buffered-ip",
   "rb-hs_json_framed-ip"
-]
\ No newline at end of file
+]