Saving causes Dyntopo to Crash #39778

New Issue

Keen Foong · 2014-04-18T09:11:59+02:00

Keen Foong commented

2014-04-18 09:11:59 +02:00

System Information
Windows 7 x64 Professional
Intel Core i7-4770 CPU @ 3.5GHz
nVidia GeForce GTX 580

Blender Version
Broken: 2.69 39bfde6
It should work with the official downloads, as I use dyntopo often and haven't had the problem till I got this build.

When I save then draw on my model twice, it crashes blender. The first draw after the save it the brush gives unexpected results on the mesh (it should be smooth and be like clay buildup, but instead it gives jagged results) after that it crashes.

Exact Steps

"Enable Dyntopo" (Ctrl-D)
"Save" (Ctrl-S)
Draw on the mesh (left click the mesh a couple of times)

If you switch to constant detail, I think the steps are slightly different and it sometimes works again.
untitled.blend

**System Information** Windows 7 x64 Professional Intel Core i7-4770 CPU @ 3.5GHz nVidia GeForce GTX 580 **Blender Version** Broken: 2.69 39bfde6 It should work with the official downloads, as I use dyntopo often and haven't had the problem till I got this build. When I save then draw on my model twice, it crashes blender. The first draw after the save it the brush gives unexpected results on the mesh (it should be smooth and be like clay buildup, but instead it gives jagged results) after that it crashes. **Exact Steps** * "Enable Dyntopo" (Ctrl-D) * "Save" (Ctrl-S) * Draw on the mesh (left click the mesh a couple of times) If you switch to constant detail, I think the steps are slightly different and it sometimes works again. [untitled.blend](https://archive.blender.org/developer/F85147/untitled.blend)

Keen Foong commented

2014-04-18 09:11:59 +02:00

Changed status to: 'Open'

Keen Foong commented

2014-04-18 09:11:59 +02:00

Added subscriber: @kfoong

Keen Foong commented

2014-04-18 10:03:04 +02:00

Forgot to mention, for the exact steps. You have to open the untitled.blend.

Sergey Sharybin commented

2014-04-18 11:05:44 +02:00

Added subscribers: @Psy-Fi, @Sergey

Sergey Sharybin commented

2014-04-18 11:05:44 +02:00

Can't actually reproduce the crash here on linux 64bit. Also the revision you've referenced is not 2.69 but 2.70.

@Psy-Fi, any clues here?

Can't actually reproduce the crash here on linux 64bit. Also the revision you've referenced is not 2.69 but 2.70. @Psy-Fi, any clues here?

Bastien Montagne commented

2014-04-18 12:03:19 +02:00

Added subscriber: @mont29

Antonis Ryakiotakis was assigned by Bastien Montagne

2014-04-18 12:04:44 +02:00

Bastien Montagne commented

2014-04-18 12:04:44 +02:00

I can confirm the issue here (note dyntopo is not enabled in the file). In debug build, assert fail + segfault:

BLI_assert failed: /home/i7deb64/blender-2.5-svn/__work__/src/source/blender/blenkernel/intern/pbvh_bmesh.c:293, pbvh_bmesh_vert_create(), at '(bvh->totnode == 1 || node_index) && node_index <= bvh->totnode'
ASAN:SIGSEGV

I can confirm the issue here (note dyntopo is not enabled in the file). In debug build, assert fail + segfault: ``` BLI_assert failed: /home/i7deb64/blender-2.5-svn/__work__/src/source/blender/blenkernel/intern/pbvh_bmesh.c:293, pbvh_bmesh_vert_create(), at '(bvh->totnode == 1 || node_index) && node_index <= bvh->totnode' ASAN:SIGSEGV ```

Antonis Ryakiotakis commented

2014-04-18 15:25:07 +02:00

This should have been already fixed, in latest master but I will retest a bit later.

Antonis Ryakiotakis commented

2014-04-18 18:14:15 +02:00

Changed status from 'Open' to: 'Archived'

Antonis Ryakiotakis closed this issue

2014-04-18 18:14:15 +02:00

Antonis Ryakiotakis commented

2014-04-18 18:14:15 +02:00

Yep, closing.

Keen Foong commented

2014-04-18 18:14:45 +02:00

Ah sorry about that, yeah its 2.70. The build I tested was updated about 20 hours ago, and I didn't see any fixes in the commit log that addressed the issue so I posted it here.

Antonis Ryakiotakis commented

2014-04-18 18:17:39 +02:00

Check https://developer.blender.org/rB169f8313940e826587fc50b3c4e3b082d15b51e5

Keen Foong commented

2014-04-18 18:20:24 +02:00

Yep! it seems to be working now thanks!

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Saving causes Dyntopo to Crash #39778