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Maniphest T32781

Crash with CUDA sm 2.0 render under linux in official build
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Description

r51026 - the official release of 2.64 crashes when rendering with Gpu.


Command line output:
CUDA error: Invalid value in cuLaunchGrid(cuDisplace, xblocks, 1)

Gpu rendering with RC 2 works fine.


Specs:

Core i7 920

6 GB ram

Nvidia driver (current)

Ubuntu 64-bit 12.04.1

GTX 580 3 GB

Just for avoiding bugs, this is practically the same bug mentioned here:
http://www.blender.org/forum/viewtopic.php?p=99589&sid=b89d471ac459adaf0220c6870544b748

Blender dot org forum, but couldn't log in (?)

Event Timeline

Mikko Lempola (blempis) edited a custom field.Oct 5 2012, 3:43 PM
Sergey Sharybin (sergey) added a comment.Oct 5 2012, 8:05 PM

Brecht, could you please check this one? From first glance seems rev50995 is the candidate for a culptrit, not sure tho -- everything works fine on gtx560ti.

Also seems 580 is sm_20, not sm_30.

Brecht Van Lommel (brecht) added a comment.Oct 5 2012, 10:05 PM

It's possible that it's 50995, but that code only runs when the "Sample as Lamp" option is enabled for the world, which is not enabled by default. Does this crash happen with any the default cube, or only with a specific .blend file? In case of the latter, please attach a file that crashes.

Brecht Van Lommel (brecht) added a comment.Oct 8 2012, 2:31 PM

From the forum post it seems this is related to sample as lamp, which was fixed now.

Brecht Van Lommel (brecht) changed the task status from Unknown Status to Resolved.Oct 8 2012, 2:31 PM