image composting: Image artifacts or even error message 'Bus error: 10'

[rempargo]

What is the output of running npx envinfo --binaries --languages --system --utilities?

System:
OS: macOS 10.14
CPU: (12) x64 Intel(R) Core(TM) i9-8950HK CPU @ 2.90GHz
Memory: 13.53 GB / 32.00 GB
Shell: 3.2.57 - /bin/bash
Binaries:
Node: 11.7.0 - /usr/local/bin/node
Yarn: 1.10.1 - /usr/local/bin/yarn
npm: 6.5.0 - /usr/local/bin/npm
Utilities:
Make: 3.81 - /usr/bin/make
GCC: 10.14. - /usr/bin/gcc
Git: 2.20.1 - /usr/bin/git
Languages:
Bash: 3.2.57 - /bin/bash
Java: 11.0.2 - /usr/bin/javac
Perl: 5.18.2 - /usr/bin/perl
PHP: 7.1.19 - /usr/bin/php
Python: 2.7.10 - /usr/bin/python
Ruby: 2.6.3 - /Users/paulverschoor/.rvm/rubies/ruby-2.6.3/bin/ruby

What are the steps to reproduce?
running the code below, but each time using different arguments when calling the createImage() function.

What is the expected behaviour?
a new image which is composed by one other image ('smiley_24x24.png') that is repeated several times. For example the file '14x14_is_ok.png'

If I run createImage(14,14) I get the image that I expect.

What is the expected behaviour?

If I run createImage(15,15) I get an image with artifacts (last 16 composite images on the bottom are not there.
If I run createImage(16,16) I don't get an image at all, but I do get an error message Bus error: 10

The Bus error: 10 error is strange, because when I run just by it's own, I will get the error message and no image file

createImage(16,16)

But combined with a working call, It will create a 16x16 icons image (with the artifacts) and the 14x14. As if the correct output will cancel the previous error.

createImage(16,16)
createImage(14,14)

So there are two issues here, the image artifacts and the Bus error 10, but they seem very related to me.

Are you able to provide a standalone code sample, without other dependencies, that demonstrates this problem?

const sharp = require('sharp');
const fs = require('fs');

function createImage(designWidth,designHeigth){
    const pixelImage = 'smiley_24x24.png';
    var pixelSize     = 24 // size of the smiley
    var compositeImage =   sharp({
        create: {
          width: designWidth * pixelSize,
          height: designHeigth * pixelSize,
          channels: 3,
          background: { r: 200, g: 200, b: 200 } // grey background
        }
      })

      let images = []
  
      for (let y = 0; y < designHeigth; y++) {
        for (let x = 0; x < designWidth; x++) {
          images.push({input: pixelImage, left:x* pixelSize, top:y* pixelSize})
          }
        }   
     compositeImage.composite([...images.slice(0,209)])
     .png().toBuffer().then(data=>{
       fs.writeFileSync(`composite_test_${designWidth}x${designHeigth}.png`,data,'binary')
     })
}   
createImage(15,15)

Are you able to provide a sample image that helps explain the problem?
14x14_is_ok.png is like expected

15x15_with_artifacts

smiley_24x24.png is needed for the code.

[lovell]

Hi, this looks like a stack overflow. See #1626 and #1708 for previous examples of this.

You can use sharp.cache(false) to disable libvips cache and reduce stack pressure. https://sharp.pixelplumbing.com/en/stable/api-utility/#cache

[lovell]

Please subscribe to the future possible enhancement at #1580 that will provide a better solution for the problem described here.

[lovell]

Hope this helped, please reopen with more details if not.

[antoniogamiz]

I'm getting the same error, the provided solution it's not working in my case :( -> https://stackoverflow.com/questions/69181137/getting-bus-error-when-composing-a-lot-of-images-with-sharp?noredirect=1#comment122274290_69181137