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libpdfium.so GC error #47

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libpdfium.so GC error#47

Description

@littlehorse417
littlehorse417
opened on Jun 20, 2025

Version

pdftext==0.6.3
pypdfium2==4.30.0

Problem

The Python garbage collector is collecting TextPage objects while PDFium internally cleans up CPDF_TextPage resources, both accessing the same memory region and leading to a race condition.

Thought

https://github.com/datalab-to/pdftext/blob/master/pdftext/pdf/pages.py#L277-L289

Can we manually call textpage.close() to release resources after using the TextPage object?

Activity

  1. littlehorse417 commented on Jun 20, 2025

    @littlehorse417
    littlehorse417
    on Jun 20, 2025
    Author

    Can we upgrade pypdfium2 to 4.30.1?
    https://github.com/pypdfium2-team/pypdfium2/blob/4.30.1/docs/devel/changelog.md

    4.30.1 Changelog

    PdfPage.get_objects(): Don't register pageobjects as children, because they don't need to be closed by the caller when part of a page. This avoids excessive caching of weakrefs that are not cleaned up with the object they refer to.
  2. tarun-menta
    transferred this issue fromdatalab-to/markeron Jun 25, 2025
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