dooots

I just want to say thank you for spending the time to find a way to make ksp crash for you. Even with ksp crashing at a decent rate for me it still took several hours to find a fast crash, I can only imagine how many hours it took you to find that crash.

Just tried the plugin and it drops the cpu usage to 15-20% in the vab. I repeated the drag test I was doing earlier and ksp crashed in less then a minute again. Also tried the drag test when running ksp as admin and ksp crashed after a few minutes. This seems to be in line with my other drag tests, most happen within about a minute but some take longer. Just to be clear the drag test is loading the Kerbel 1-5, coping the srb booster at the decoupler, setting symmetry to 2x and dragging the copy over the upper most fuel tank. As for the the vab level I have not noticed any major difference between level 3 and level 1/2 for crashes. However outside of trying to crash in the vab the crashes are very random so it would have to be a pretty major change to be noticed. I can play for three hours one night and not have single crash and the next I can crash in less then 10 minutes multiple times in a row.

vsync is every frame My guess is you may need a bigger booster to get it to crash. As far as I could tell the rate of crash for me was pretty sensitive to the number of parts on the booster. This also seems to align with the attach and detach tests I was doing before. Using 2x symmetry for the attach and detach tests felt a bit smoother then using 4x, and I would not be surprised to find out if I did more of the tests that the 2x symmetry crashes happen faster then the 4x ones. I also did an attach detach test today that replaced the radial decoupler of the booster with a modular girder segment. This allowed me to attach and detach the booster faster but also resulted in small pauses in the game. I think those small pauses is why only two of the three test managed to crash the game in less then ten minutes.

This has to be a race condition, if my frame rate drops to much from dragging the assembly over the ship it takes much longer to crash. The sweet spot for me seems to be a simple radial srb booster in 2x symmetry. (radial decoupler, srb, and nose cone) If I watch the performance monitor in the alt-f12 window when I drag such an assembly over the Kerbal 1-5 my fps is always just below 60 and seems to drop no lower then 57.8 fps. Other notes: I have not forced a crash by simply dragging a girder in 2x symmetry across and ship, but I have forced a crash by dragging a vector engine in 2x symmetry. I have forced crashes with a larger assembly like the Dynawing's fuel tank and boosters in 2x symmetry. I have forced a crash with a radial decoupler, fuel tank, and nose cone. I have forced a crash in both radial modes. Testing with the Kerbal X instead of the Kerbal 1-5 seems to take longer to crash on average. I have not forced a crash in 1x symmetry. One thing I don't get is I did not see any such crashes from dragging the radial decoupler over the ship yesterday when I was testing. All of the crashes I had yesterday happened on a mouse click. Oh I have vsync on, and task manager says ksp is using close to 50% of my cpu when in the VAB. If you want any more info or for me to run more tests I am willing to do so, but for now I am out of ideas on what to try next.

More testing, by far and away the fastest way to crash the VAB for me is to drag a multi-part, surface attach, assembly, across the surface of a rocket with symmetry greater than 1. For example load the Kerbal 1-5, copy the radial decoupler, srb, and nose cone by alt clicking on the radial decoupler. Then set the symmetry to 2x and drag the copy across any part of the rocket. I also make sure the drag/swipe motion starts off of the rocket and ends off of the rocket, but I do not know if this matters yet. Most of the time KSP will crash for me in less than a minute. So far I have caused the crash without making a copy of a part already on the rocket, but all crashes have happened when I had a Hammer SRB some place in the assembly. I will keep testing and see if I can find a way to always crash KSP quickly.

I am just using the stock Kerbal 1-5. I have been trying to crash in the VAB multiple times with various methods, but for some reason radial with symmetry is the only thing I can get to crash in under 10 minutes. Here is link to everything I have collected so far testing data I still have more I want to test but I can only sit and attach and detach parts for so long.

So I am in the process of trying to reproduce all the crashes I have seen in an unmodded install and got an interesting crash. I was testing attaching and detaching a radial decoulper when I could no longer attach the decoupler. I tried to attach the decoupler a few times and the game crashed. I don't know if this crash is related to the other VAB crashes but the log actually has some info in it so I figured I would post it here. KSP.log output_log.txt

I also have crashes in the VAB. As far as I can tell the crashes are completely random. Time, part count, and mods do not seem to be a factor. The only thing in common with all the crashes as far as I can remember is they happen on a mouse click action (pickup, drop, etc.). No crash logs from any of the crashes and all output logs have no useful information (no stack trace, not detailed enough to see when the crash happened). Only other thing of note is doing a clean reinstall of ksp may have reduced the number of crashes, but with how random they are it is hard to tell. CPU: i3-4130 3.40GHz Ram: 8GBs GPU: AMD Radeon HD 7700 Series (latest release drivers) OS: Windows 10 64-bit Build 10586 KSP: Steam 64-bit Edit: Scratch the all crashes happen on mouse click, had one tonight after I detached the lower stage of a rocket and went to grab a new fuel tank. If I had to guess the crash happened as I moused over one of the parts in the part selection area.