Storing arrays longer than signed short range in customdata fails #42883

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opened 2014-12-12 15:43:31 +01:00 by Lukas Tönne · 5 comments
Member

System Information
Arch Linux 14.04, NVidia GTX 8800

Blender Version
Broken: recent master (1e02a5f)

Short description of error
"Long" arrays in customdata fail to allocate memory

Exact steps for others to reproduce the error
Run the script below to test. Apparently some short int prevents allocation of more than 32767 elements, although memory shouldn't be an issue.

import bpy

import array, random

def test_array_size(tot):
    ob = bpy.context.active_object
    
    data = [random.randint(0, 100) for i in range(tot)]
    
    print("Trying to write {} elements ...".format(tot))
    # LINE OF DEATH
    ob['blahblah'] = data
    print("ok!")

test_array_size(1000)
test_array_size(10000)
test_array_size(100000)
test_array_size(1000000)

# short range maybe?
test_array_size(32767) # MAX_SHORT
test_array_size(32768) # MAX_SHORT + 1

**System Information** Arch Linux 14.04, NVidia GTX 8800 **Blender Version** Broken: recent master (1e02a5f) **Short description of error** "Long" arrays in customdata fail to allocate memory **Exact steps for others to reproduce the error** Run the script below to test. Apparently some short int prevents allocation of more than 32767 elements, although memory shouldn't be an issue. ``` import bpy import array, random def test_array_size(tot): ob = bpy.context.active_object data = [random.randint(0, 100) for i in range(tot)] print("Trying to write {} elements ...".format(tot)) # LINE OF DEATH ob['blahblah'] = data print("ok!") test_array_size(1000) test_array_size(10000) test_array_size(100000) test_array_size(1000000) # short range maybe? test_array_size(32767) # MAX_SHORT test_array_size(32768) # MAX_SHORT + 1 ```
Author
Member

Changed status to: 'Open'

Changed status to: 'Open'
Campbell Barton was assigned by Lukas Tönne 2014-12-12 15:43:31 +01:00
Author
Member

Added subscriber: @LukasTonne

Added subscriber: @LukasTonne

This issue was referenced by 28a0e1dae5

This issue was referenced by 28a0e1dae5f347edc05b0ac1a5af4de5927e0bbf

Changed status from 'Open' to: 'Resolved'

Changed status from 'Open' to: 'Resolved'

Closed by commit 28a0e1dae5.

Closed by commit 28a0e1dae5.
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Reference: blender/blender#42883
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