topic Re: TRIM periodically locks up AutoCAD in Civil 3D Forum

TRIM periodically locks up AutoCAD

hencoop — Mon, 22 Jan 2018 15:37:51 GMT

I've had a different problem with TRIM before. This problem is significantly different.

AutoCAD automatically initiates a REGEN and completely locks up while cranking the CPU heavily.

When this happens it is ALWAYS during a TRIM command.

The last visible messages at the command prompt are:

Updating Indexes for block *Model_Space

Done.

Updating Indexes for block FutureSchool-82

Done.

Regenerating model.

The screen blacks out because of the regen and the regen is NEVER completed.

Performance Graph at start of lock up:

Threads affecting CPU Usage (Multiple MSVCR110.dll instances):

Performance Graph much later after lock up began:

Re: TRIM periodically locks up AutoCAD

schroederC3D — Mon, 22 Jan 2018 20:24:06 GMT

Does this happen on relatively simple geometry? A line and a circle for example?

Re: TRIM periodically locks up AutoCAD

hencoop — Tue, 23 Jan 2018 15:11:49 GMT

It has been happening with lines and polylines with arcs.

The file is over 16MB and was received from another firm. It has been audited and even recover was run on an autosave file after one lock-up and forced crash. I've been trying to remember to use BREAK instead of TRIM. I have not had any problems with BREAK.

Re: TRIM periodically locks up AutoCAD

hencoop — Wed, 24 Jan 2018 15:27:43 GMT

UPDATE:

I was in a conference for awhile this AM while the problem drawing remained open. When I returned it had locked up as before. I had NOT used the TRIM command. It now appears that this problem happens when autosave is triggered.