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Hello all, East here.   I wanted to give you a hint on how to use a RHS dump to find what thread was part of the Windows Server 2008 R2 cluster RHS recovery deadlock.   First let me start off with letting you know that Windows Server 2008 R2 will create two types of user-mode dumps: 1 - A heap...

My name is Nischay Anikar from the Escalation Engineer team in Global Escalation Services. In today’s post I’ll present a weird problem I worked through with a client. When we started to work on the problem, we found the following: Ping to the box worked. Keyboard was responding. Shares on...

Hi Everyone - My name is Aman. I'm an Escalation Engineer on the Microsoft GES (Global Escalation Services) team. We recently came across a critical situation where-in the following issues were reported by the customer: 1. DC login hangs at “applying computer settings” regardless of RDP or local...

So you have a dump from a hung server and you’re the first person on the scene. Your IT Manager is jumping up and down, the phone is ringing off the hook and people are hovering outside your cube. It’s game time and the pressure is on!!! Now what do you do? Well take a deep breath, get a cup of...

Written by Jeff Dailey: Hello NTDebuggers, one of the most important things to understand in kernel debugging hung servers is the output of !locks. There can be a lot of data and it’s not always clear what is going on. One of the things I like to do in order to better understand the output is to...

We recently dealt with an interesting issue that I would like to share, hope you enjoy. - Jason Issue Summary Customer reports that within their Citrix server farm (running on Windows Server 2003), when a user logs into or out of a session (seems more pronounced on logoff), ALL users connected...

Hello, this is Roy again. In this case we will discuss a scenario where tracing a hung client thread is not possible through LPC data structures and extensions. We would rather use hints from the LPC message sent about the operation that was taking place and other heuristics to arrive at possible reason...

Hello my name is Roy, I’m an EE on the Microsoft global escalation services / CPR team. This blog is a follow on to my first LPC blog. We will be discussing debugger extensions that allow you to look at LPC related issues. Disclaimer: The purpose of this blog is to illustrate debugging techniques...

Hello, my name is Roy. I’m an Escalation Engineer in the CPR platforms team. I’ll be doing a four part series on LPC over the coming month. You’re sure to find this interesting. That being said let’s get started. Disclaimer: The purpose of this blog is to illustrate debugging techniques with LPC...

Hi my name is Bob, I’m an Escalation engineer with the Microsoft critical problem resolution team. We had one of our readers ask how much we deal with hardware. Well in response we recently worked on an interesting problem I thought I would share with you. In this case it was interesting because it demonstrated...

Hi folks, my name is David and I’m an Escalation Engineer for Microsoft. Since Bryan wrote about How Windows Shuts Down , I thought it would be a good idea to cover How Windows Starts Up. This information applies specifically to Windows 2000, Windows XP, and Windows Server 2003. I will blog separately...

Hi again! This is Tate from the CPR team and I’m going to show you how to debug a Server Service hang and the sometimes dreaded Event ID: 2021 and Event ID: 2022. There is much Voodoo about troubleshooting these two events but never fear, it’s possible to debug quickly given the right approach. ...

Hello - Matthew here again. Today I'll be discussing in detail hang scenario #1 that Tate first mentioned a few blogs posts ago . From a debugging perspective, in an ideal world an application would always provide some kind of feedback when a failure occurs. The reality is that sometimes an application...

Written by Jeff Dailey Hello, my name is Jeff, I’m a escalation engineer on the Microsoft CPR (critical problem resolution) platforms team. This blog entry is part 2 of my Hung Window?, No source?, No problem!! Part 1 blog . In this lab we will be debugging a problem involving multi threaded applications...

Written by Jeff Dailey Hello, my name is Jeff, I’m a escalation engineer on the Microsoft CPR Platforms team. This blog entry is a follow on for how to detect a hung window . This process and training lab is right out of our CPR Training curriculum. In order to do the lab I have prepared for you...

Hi my name is Bryan, I'm a escalation engineer on the Microsoft CPR platforms team. A common problem scenario involves shutting down Windows. When troubleshooting problems during shut down we have to look at the Winlogon.exe process which can be tricky and must be done correctly. Troubleshooting...

Written by Jeff Dailey My name is Jeff, I’m an Escalation Engineer on CPR Platforms team. Following Tate’s blog on scoping hangs I’d like discus a common category of hangs and some creative ways to track them down. I will be providing a couple of labs to go with this post that you can run and debug...

Hi again! Today I want to bring to your attention an upcoming series of posts on troubleshooting hangs and this post as a primer for understanding hangs and how we scope these scenarios. Scoping is a practice we use in troubleshooting that helps us to quickly narrow down the domain or scope...