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Analyzing BSOD Minidump Files Using Windbg 4 Jun 2013 | 03:34 pm

Unfortunately, once in a while, computers fail. If you’re running Windows you’ve probably witnessed the dreaded Blue Screen of Death, commonly referred to as a BSOD. Once the BSOD occurs, some machine...

Speaking at SQL PASS Summit 2013 28 May 2013 | 03:25 pm

I’m delighted to announce that I’ll be speaking at this years SQL PASS Summit in Charlotte, North Carolina. Having submitted several times before, unsuccessfully, I’m really happy to have made the cut...

Could Not Load Type ‘NewRelic.Agent.Core.AgentApi’ 23 May 2013 | 02:00 pm

Recently I’ve begun using New Relic, and so far it’s been an excellent experience. About two weeks ago I started using their .NET Agent API to customize some of the data reported by our application to...

Partial DNS Forwarding Using Individual Windows DNS Zones 21 May 2013 | 06:52 pm

At our office, all machines are using a local Windows DNS server for their outgoing DNS queries. This allows us to make internal zones like .ipaperlan that points to all of our internal systems, while...

OrcaMDF Is Now Available on NuGet 13 May 2013 | 03:55 pm

Thanks to Justin Dearing (b|t), OrcaMDF is now available on NuGet! OrcaMDF being on NuGet means the bar just got lowered even more if you want to try it out. Let me show you how easy it is to read the...

How to Identify Which Request Caused a Runaway Thread, Using Windbg 7 May 2013 | 02:26 pm

When your w3wp process is stuck at 100% like, like when I used a non-thread-safe Dictionary concurrently, you may want to identify what request the runaway thread is actually serving. Let me show you ...

Debugging in Production Part 3 – Thread-Safe Dictionaries 30 Apr 2013 | 04:13 pm

In part 2 we found out that the concurrent access to a generic dictionary triggered a race condition bug that caused threads to get stuck at 100% CPU usage. In this part, I’ll show how easy it is to r...

Debugging in Production Part 2 – Latent Race Condition Bugs 15 Apr 2013 | 02:31 pm

Having analyzed the process dump in part 1, let’s take a look at the code we suspect of causing the issue, in particular how race condition bugs can be avoided. Looking at the User Code There were thr...

Last Chance to Register for SQLSaturday #196 in Copenhagen 9 Apr 2013 | 12:33 pm

In just a couple of weeks SQLSaturday #196 will be happening on April 20th in Copenhagen, Denmark. This is a free day smack-filled with great speakers, many of them international! Just check out the s...

Debugging in Production Part 1 – Analyzing 100% CPU Usage Using Windbg 8 Apr 2013 | 02:24 pm

This is the story of how a simple oversight resulted in a tough to catch bug. As is often the case, it worked on my machine and only manifested itself in production on a live site. In this series we w...

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