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matejvanco avatar matejvanco commented on June 23, 2024

Same issue on o OSX 10.14.2 (18C54), 8 GB RAM, DT version 2.6.0

error.txt

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pitbuster avatar pitbuster commented on June 23, 2024

I tested in 2.6.1 and it does not crash, but it instantly hangs. I activated local contrast (on default values) and levels.

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edgardoh avatar edgardoh commented on June 23, 2024

opencl? No opencl? only with local contrast?

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matejvanco avatar matejvanco commented on June 23, 2024

Any type of edit. Problem is during the export. When image is exported darktable crashes.

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edgardoh avatar edgardoh commented on June 23, 2024

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heitorPB avatar heitorPB commented on June 23, 2024

I confirm the issue with Darktable 2.6.2, ArchLinux, 8 GB of RAM + Firefox open. If I close Firefox to free some RAM, Darktable exports all the images without crashing. But when I have all my 73 tabs in Firefox, Darktable does not have enough RAM and crashes.

Why does Darktable needs some GB of RAM to process photos of ~20 MB?

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philipzimmermann avatar philipzimmermann commented on June 23, 2024

I tested it again today in darktable 2.6.1 with some more edits in my image and (after processing for some minutes) it successfully exported my image. So either version 2.6.1 fixed it or it really depends on the RAM usage during the processing because most of my RAM was free this time.

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edgardoh avatar edgardoh commented on June 23, 2024

OK, still need an answer, but if dt don't have the resources to process the image then yes, it will crash.

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pitbuster avatar pitbuster commented on June 23, 2024

Hi everyone,

Since I remembered that editing the same file converted to DNG worked fine, I did some tests with both the original and DNG.

At the end, I could track the problem to the Local Laplacian Filter for Local Contrast. Bilateral Grid works fine.

Maybe we could warn the users that Local Laplacian may use too much memory for big files.

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luhk avatar luhk commented on June 23, 2024

I have had the same issue with Local Contrast using Darktable 2.6.0, 2.6.1, and 2.6.2, no OpenCL.
With large panoramas (80 megapixels from 16-bit TIFFs), the OOM killer kills Darktable when the Local Contrast module is enabled during export. With smaller images, Darktable sometimes is killed, sometimes isn't, depending on how much RAM other applications use. Setting the number of background threads to 1 and lowering the maximum tile size sometimes also helps.

This is on a machine with 8 GB RAM.

Apparently, the local contrast module needs large amounts of RAM. Is this a bug, or is this just the way it is?

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matejvanco avatar matejvanco commented on June 23, 2024

Installed DT2.6.2 It took several hours to export Oly EM5Mk2 HighRes photo. But DT did not crasehd this time. So far so good.

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Nilvus avatar Nilvus commented on June 23, 2024

@phixxx5 : as it seems ok for you with 2.6.1, do you consider this resolved ? If yes, please close this issue.

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