[Mono-bugs] [Bug 72240][Wis] New - Incorrect behaviour when the network is overloaded.
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Sat, 5 Feb 2005 06:35:35 -0500 (EST)
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Changed by vguzev@yandex.ru.
http://bugzilla.ximian.com/show_bug.cgi?id=72240
--- shadow/72240 2005-02-05 06:35:35.000000000 -0500
+++ shadow/72240.tmp.8475 2005-02-05 06:35:35.000000000 -0500
@@ -0,0 +1,80 @@
+Bug#: 72240
+Product: Mono: Runtime
+Version: unspecified
+OS:
+OS Details:
+Status: NEW
+Resolution:
+Severity:
+Priority: Wishlist
+Component: misc
+AssignedTo: mono-bugs@ximian.com
+ReportedBy: vguzev@yandex.ru
+QAContact: mono-bugs@ximian.com
+TargetMilestone: ---
+URL:
+Cc:
+Summary: Incorrect behaviour when the network is overloaded.
+
+Description of Problem:
+Incorrect behaviour when the network is overloaded.
+In attachment you can see 4 files: client.cs, server.cs, Serialization.cs
+and TCP.cs.
+Serialization.cs - is just a wrapper for BinarySerializer.
+TCP.cs contains the methods for sending and receiving data using TCP
+sockets.
+What does this program do: client generates (in parallel, in different
+threads) arrays of System.Drawing.Color, then client assigns to all items
+Color.White color, then serializes these arrays and send to server.
+Server should accept these arrays and print the first item of each array
+(Color.White).
+
+Steps to reproduce the problem:
+1. mcs /r:System.Drawing.dll client.cs Serialization.cs TCP.cs
+2. mcs /r:System.Drawing.dll server.cs Serialization.cs TCP.cs
+3. On node 1: mono server.exe
+4. On node 2: mono client.exe <name_or_ip_of_node1> 10000
+
+Actual Results:
+On server side I get a lot of exceptions like this:
+Unhandled Exception: System.Runtime.Serialization.SerializationException:
+serializationStream supports seeking, but its length is 0
+in <0x000be>
+System.Runtime.Serialization.Formatters.Binary.BinaryFormatter:Deserialize
+ (System.IO.Stream,System.Runtime.Remoting.Messaging.HeaderHandler)
+in <0x00017>
+System.Runtime.Serialization.Formatters.Binary.BinaryFormatter:Deserialize
+ (System.IO.Stream)
+in <0x0002d> MCSharp.Serialization:Deserialize (System.IO.Stream)
+in <0x0006e> Servant:ServeConnection ()
+in <0x00053> (wrapper delegate-invoke)
+System.MulticastDelegate:invoke_void ()
+
+On client side sometimes it hangs on, and sometimes it halts on
+Segmentation fault
+
+Expected Results:
+On MS.Net it works perfectly even on slow machines.
+
+How often does this happen?
+Almost always
+
+Additional Information:
+[vadim@skif testload]$ uname -a
+Linux skif 2.4.25 #2 SMP Fri Apr 23 14:03:00 MSD 2004 i686 athlon i386
+GNU/Linux
+[vadim@node-11 testload]$ uname -a
+Linux node-11 2.4.25 #2 SMP Fri Apr 23 15:33:54 MSD 2004 i686 athlon i386
+GNU/Linux
+[vadim@skif testload]$ mono --version
+Mono JIT compiler version 1.0.5, (C) 2002-2004 Novell, Inc and
+Contributors. www.go-mono.com
+ TLS: __thread
+ GC: Included Boehm (with typed GC)
+ SIGSEGV : normal
+ Globalization: ICU
+
+
+Best regards,
+Vadim B. Guzev
+http://u.pereslavl.ru/~vadim/MCSharp/