topic Re: Memory Leak - AutoCAD LT 2019 88GB (!) Virtual Memory Used in Installation & Licensing Forum

Memory Leak - AutoCAD LT 2019 88GB (!) Virtual Memory Used

info4LFFZ — Fri, 12 Jun 2020 14:48:13 GMT

Hi,

I am experiencing a repeated issue where AutoCAD LT 2019 will crash and I will lose two of my three displays. When I check the event viewer, I see the following type of event around the time of the crashes:

Event ID: 2004
Task Category: Resource Exhaustion Diagnosis Events

Windows successfully diagnosed a low virtual memory condition. The following programs consumed the most virtual memory: acadlt.exe (2228) consumed xxx-xxxxxxxx bytes, sqlservr.exe (8720) consumed 458178560 bytes, and Revu.exe (1248) consumed 362725376 bytes.

So, AutoCAD LT is using 88GB (!) of virtual memory.

I am on Windows 10 Pro 1909. Intel Core i7 8700, Nvdia Quadro P4000, 32GB DDR4.

The drawings are 2D and not very large at all.

Does anyone have any idea what could be causing this issue and how to troubleshoot and fix? I have already updated the GPU driver and installed all program updates for AutoCAD.

Re: Memory Leak - AutoCAD LT 2019 88GB (!) Virtual Memory Used

pendean — Fri, 12 Jun 2020 20:39:35 GMT

LT2019 is 3-years old, not new, so what is new or different when all of this started? Could be a new version anti-virus, could some other non-related software add or removal, new setup with three monitors, something else you might not think was too important to mention yet?

Does ABOUT command list your version to be the current 2019.1.2, or an earlier version? If earlier, you have updates to install.

Re: Memory Leak - AutoCAD LT 2019 88GB (!) Virtual Memory Used

natasha.l — Wed, 17 Jun 2020 16:14:15 GMT

Hello @info4LFFZ,

This may happen while opening or saving a file, or while working in one or more open drawings. It could also happen only on specific files or on any file.

If the excessive memory usage happens when saving, it may occur after one save or it may be progressive with each save using more and more RAM.

Type SAVEFIDELITY on the command line in AutoCAD and change the value to 0 (zero).
Update to the latest certified video driver, you mentioned you did this so continue on
If your graphics card supports DirectX or OpenGL switch to it instead by going to CPU settings on your operating system & set the supported display type & update DirectX End-User Runtime Web Installer.
Reinstall Visual C++, How to remove and reinstall Microsoft Visual C++ Runtime Libraries
Reset your user settings to AutoCAD defaults).
Check for file corruption by repairing corrupt AutoCAD files. Test saving a brand new drawing created from the acad.dwt (or acadlt.dwt) template file versus existing drawings. If the memory usage does not increase, the original drawing most likely needs cleaning and/or repairing.
Temporarily disable or uninstall security settings like Antivirus, Firewall & UAC on your Windows operating system

Please "Accept Solution" if a reply or replies have helped resolve the issue or answered your question, to help others in the community.

Re: Memory Leak - AutoCAD LT 2019 88GB (!) Virtual Memory Used

natasha.l — Wed, 17 Jun 2020 16:16:16 GMT

Hello @info4LFFZ,

Were you able to figure this out & resolve the problem? Please let us know & remember to "Accept Solution" if a reply or replies have helped resolve the issue or answered your question, to help others in the community.

Re: Memory Leak - AutoCAD LT 2019 88GB (!) Virtual Memory Used

info4LFFZ — Wed, 17 Jun 2020 19:57:39 GMT

Seemingly, the issue was related to the particular files at hand. I was able to resolve the issue by running PURGE and AUDIT on them. Thank you for your help.