I found a page in a PDF causes Poppler to get stuck in an infinate loop while rendering. The same PDF renders fine in Acrobat, Apple Preview and Google Chrome - while Poppler just hangs.
The PDF can be downloaded from: http://midnight-labs.org/temp/hangs-poppler.pdf (2.5mb) This was extracted using pdftk (iText), the pages either side of it rendered fine. I've tested against todays git checkout and a ~1 month old snapshot of Poppler on Linux, and Poppler 0.16.6 (from MacPorts) on Mac. The common backtrace I've found, even after 20+ minutes of running is: #12 0x0808958c in Gfx::display () #13 0x0808c777 in Gfx::doForm1 () #14 0x0808d5bd in Gfx::doTilingPatternFill () #15 0x080919bd in Gfx::doPatternFill () #16 0x08092128 in Gfx::opFill () #17 0x08089158 in Gfx::go () #18 0x0808958c in Gfx::display () #19 0x080c65b5 in Page::displaySlice () I'll file a BugZilla report later today when I've had a better look at it, and I'm happy for the PDF to be used for regression testing etc.
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