Welcome to MSFN

Register now to gain access to all of our features. Once registered and logged in, you will be able to contribute to this site by submitting your own content or replying to existing content. You'll be able to customize your profile, receive reputation points as a reward for submitting content, while also communicating with other members via your own private inbox, plus much more! This message will be removed once you have signed in.


cluberti

Creating memory dumps

1 post in this topic

If you have an application that is hanging or crashing, or a system that is misbehaving due to hangs, high CPU, severe slowness, etc, you may be asked to create a memory dump - perhaps of the application that is believed to be having issues, or of the entire system if the computer is misbehaving (or of both an application and the whole system!). This post is meant as an instruction manual on how to gather data if you are going to post for help on resolving one of these types of problems. Here are instructions on how to create the appropriate dump if you are so asked:

Memory dump of the entire system:

1. Create or set the following registry value by running regedit.exe:

Key: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\i8042prt\Parameters

Value: CrashOnCtrlScroll

Type: REG_DWORD

Data: 1

2. Click Start, type sysdm.cpl (and press ENTER to launch), and then click the "Advanced tab. On the "Advanced" tab, click "Settings" under the "Performance" header. Click the "Advanced" tab, then click "Change" under "Virtual Memory". Click the top box, labeled "Automatically manage....", and click the "OK" button.(twice).

3. Also in the "System Properties" window on the "Advanced" tab, click the "Settings" buttun under the "Startup and Recovery" header. Make sure "Complete Memory Dump" is selected (see 3a if this is not in the list). You can change the location of the memory dump file to a different local partition if you do not have enough room on the partition where the OS is installed.

3a. If the "Complete Memory Dump" option in step 3 is not available, you will need to manually set this registry value by running regedit.exe:

Key: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\CrashControl

Value: CrashDumpEnabled

Type: REG_DWORD

Value: 1

4. You will need to reboot for these changes to take effect.

5. The next time that the system is exhibiting the problem you were asked to dump the machine for, hold down the RIGHT CTRL key and press the SCROLL LOCK key twice to cause the machine to bugcheck and create a memory dump. After the box comes back up, you'll find the resulting memory dump file in %systemroot%\memory.dmp that can be analyzed.

Memory dump from an application/process that is HANGING (not crashing):

1. Create a directory called c:\adplus

2. Open a command prompt and change to the directory where you installed the debugging tools. By default, this is "C:\Program Files\Debugging Tools for Windows"

3. Type the following command in the command prompt:

cscript adplus.vbs -hang -pn appname -quiet -o c:\adplus (where "appname" is the .exe name of the application that is hanging)

4. Once the debugger has finished (this can take some time), the command prompt window(s) will close, and you will have data in your C:\adplus folder that can be analyzed.

Memory dump from an application/process that is CRASHING (not hanging):

1. Create a directory called c:\adplus

2. Open a command prompt and change to the directory where you installed the debugging tools. By default, this is "C:\Program Files\Debugging Tools for Windows"

3. Type the following command in the command prompt:

cscript adplus.vbs -crash -pn appname -quiet -o c:\adplus (where "appname" is the .exe name of the application that is crashing)

4. Once the application you have attached to in step 3 eventually crashes, the debugger will create a .dmp file (or files) of the process. Once the debugger has finished (this can take some time), the command prompt window(s) will close, and you will have data in your C:\adplus folder that can be analyzed.

1

Share this post


Link to post
Share on other sites
Guest
This topic is now closed to further replies.

  • Recently Browsing   0 members

    No registered users viewing this page.