August 2005 - Posts

• Trivial debugging note - using WeakReference in finalizer

  Some time ago I saw a problem from a partner team in Microsoft that an InvalidOperationException is thrown from WeakReference.IsAlive . WeakReference wraps weak GC handle implemented in CLR's Execution Engine ( GC handle is also exposed by System.Runtime.InteropServices.GCHandle Read More... Posted Wednesday, August 31, 2005 9:42 AM by yunjin | 2 Comments Filed under: .NET programming gotcha and debugging tips

• Thread, System.Threading.Thread, and !Threads (III)

  I got email asking me to explain !Threads output in details. I think this is a good question and a good topic for another installment to the series. Here is an example I'll use for this post: 0:055> !threads ThreadCount: 202 UnstartedThread: 95 BackgroundThread: Read More... Posted Tuesday, August 30, 2005 9:55 AM by yunjin | 5 Comments Filed under: Rotor code explanation, .NET programming gotcha and debugging tips, CLR internal and Misc

• Thread, System.Threading.Thread, and !Threads (II)

  With knowledge in my previous blog , we could avoid some mistakes in .NET programming. A C++ Thread is very resource heavy. It is associated with a lot of dynamically allocated memory and some OS handles. So it had better to be cleaned up ASAP after its Read More... Posted Monday, August 29, 2005 9:30 AM by yunjin | 2 Comments Filed under: Rotor code explanation, .NET programming gotcha and debugging tips, CLR internal and Misc

• Thread, System.Threading.Thread, and !Threads (I)

  If you use SOS’s !Threads command during debugging a lot, you should be familiar with such output: 0:003> !threads PDB symbol for mscorwks.dll not loaded Loaded Son of Strike data table version 5 from "C:\WINDOWS\Microsoft.NET\Framework\v1.1.4322\mscorwks.dll" Read More... Posted Thursday, August 25, 2005 10:26 AM by yunjin | 4 Comments Filed under: Rotor code explanation, .NET programming gotcha and debugging tips, CLR internal and Misc