KSP crashes during VAB or SPH construction

[iLikeRovers]

I first came across this crash when making my big creations 2 months ago, its been preventing me go all Kerbal on my designs , but I wanted to find if I could reproduce it with a simple craft. Now I have.

I'm interested to see if anyone else can break KSP this way too.

Reproducing bug:

- Load up KSP and go straight to the VAB. (I'm in Sandbox mode) I use purge* to free up my RAM cache on mac . So I have ~600 MB left over.

- Place the Mk1 Lander Can (other parts probably work too).

- Offset the can high up so its near the top of the VAB

- Note that Alt select on the Lander Can doesn't work (I think that's normal...)

- Place a Structural Fuselage on the bottom (Alt-no-side-attachment-placement sometimes

helps here)

- Alt select that Structural Fuselage as though you were going to duplicate it

- Enjoy the The Spinning Beach Ball of Death^TM. Amount of RAM usage seems not to increase, CPU starts working hard.

Machine setup:

No Steam involved.

build id = 00705

2014-12-15_13-59-25

Branch: master

Player.log: http://www./download/p6swgahod5n6r77/Player.log

KSP.log: http://www./download/iu8mhw04udyxio4/KSP.log

System crash log: http://www./download/ur4m70x5xjn2ws5/KSP_2015-03-30-195252_Iains-MacBook-Pro-2.hang

Happy bug hunting!

*

purge(8) BSD System Manager's Manual purge(8)

NAME

purge -- force disk cache to be purged (flushed and emptied)

SYNOPSIS

purge

DESCRIPTION

Purge can be used to approximate initial boot conditions with a cold disk

buffer cache for performance analysis. It does not affect anonymous mem-

ory that has been allocated through malloc, vm_allocate, etc.

SEE ALSO

sync(8), malloc(3)

September 20, 2005

[Master Tao]

After a quick look through your logs, I'd say you found a new way to reproduce this bug.

That said, does the issue still occur if you don't​ use purge?

[iLikeRovers]

Yes, it still happens when not using purge. Are you able to reproduce this in your setup?

This bug [\url] you mention does feel very familiar.

[Master Tao]

No, I can't reproduce it. Could you make a video of the reproduction steps? Maybe I'm missing something.

Also, what version of OS X are you using?

[iLikeRovers]

Its Mac OS X 10.7.5. Its mentioned in the KSP.log file.

I don't think its a RAM issue. I've upgraded 4 -> 16 GB last week and it still happens.

A video may take a while for me to set up; find and install video capture software, sign up to youtube etc... I'd rather avoid doing that, but if the Squad team would like to take a closer look, or you can show an easy way to do so, then I will.

Did you shove the Lander Can high up until it clipped the ceiling?

[Master Tao]

I don't think its a RAM issue. I've upgraded 4 -> 16 GB last week and it still happens.

It shouldn't be, since the errors for out-of-memory issues are completely different.

A video may take a while for me to set up; find and install video capture software, sign up to youtube etc... I'd rather avoid doing that, but if the Squad team would like to take a closer look, or you can show an easy way to do so, then I will.

I'm not sure when QuickTime X started including screen recording for free – either 10.7 or 10.8. Try File > New Screen Recording. You could upload the video to a file hosting site like Dropbox or Google Drive if you already have an account.

Did you shove the Lander Can high up until it clipped the ceiling?

Yes. I can shove it all the way through the ceiling. There's a point where I can no longer attach the structural fuselage, but it never hangs.

[iLikeRovers]

Yep, QuickTime does work, I'll get back to you about that soon...

[iLikeRovers]

Hi Tao

Here's me starting in the VAB, the video doesn't show the beach ball, but you can see how I'm wriggling the mouse at the end!

http://www./watch/nkw9383aa6ksvfc/VAB-build-bug.mov

I've also included one of my epic rovers where I can reliably crash KSP by putting an object on the left or right rear end when I'm in symmetry mode. But that is probably more similar to the other bug you mentioned.

http://www./download/s02wjpxdfz7cff6/LRC.craft

http://www./download/drjf9ln3ny2g0z5/KSP-LRCcraft.log

[tofkop]

Also recurs frequently, although I can't reproduce this on purpose...

The log says it's

Receiving unhandled NULL exception

My Setup: OS X 10.9.5 (13F34),2,5 GHz Intel Core 2 Duo, 4GB 667 MHz DDR2 SDRAM, NVIDIA GeForce 8600M GT 512 MB

SP Version: Build ID: 00705,

Mods / Add-Ons: All Stock

Other Notes/Pictures/Log Files:

KSPlog:https://www.dropbox.com/s/qjn43g0jj762qvq/KSP.log?dl=0

Don't know if you need more info?

[Wayland]

I am encountering a very similar VAB/SPH bug on my fresh, unmodded install of 0.90 on a Win8 machine.