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Diffstat (limited to 'lib/Spreadsheet/ParseXLSX.pm')
| -rw-r--r-- | lib/Spreadsheet/ParseXLSX.pm | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/lib/Spreadsheet/ParseXLSX.pm b/lib/Spreadsheet/ParseXLSX.pm index ccdfd5d..d5f7781 100644 --- a/lib/Spreadsheet/ParseXLSX.pm +++ b/lib/Spreadsheet/ParseXLSX.pm @@ -752,6 +752,18 @@ were explicitly provided when the spreadsheet was written. =over 4 +=item Large spreadsheets may cause segfaults on perl 5.14 and earlier + +This module internally uses XML::Twig, which makes it potentially subject to +L<Bug #71636 for XML-Twig: Segfault with medium-sized document|https://rt.cpan.org/Public/Bug/Display.html?id=71636> +on perl versions 5.14 and below (the underlying bug with perl weak references +was fixed in perl 5.15.5). The larger and more complex the spreadsheet, the +more likely to be affected, but the actual size at which it segfaults is +platform dependent. On a 64-bit perl with 7.6gb memory, it was seen on +spreadsheets about 300mb and above. You can work around this adding +C<XML::Twig::_set_weakrefs(0)> to your code before parsing the spreadsheet, +although this may have other consequences such as memory leaks. + =item Worksheets without the C<dimension> tag are not supported =item Intra-cell formatting is discarded |