Trying to create thumbnails results in error code 134. Output from the Debug-Log:
PdfHandler::doTransform: called wfMkdirParents(/tmp) MediaWikiShellCommand::execute: /bin/bash /var/www/<path>/includes/shell/limit.sh (/usr/bin/gs -sDEVICE=jpeg -sOutputFile=- -dFirstPage=1 -dLastPage=1 -dSAFER -r150 -dBATCH -dNOPAUSE -q <pathToPDF> | /usr/bin/convert -depth 8 -quality 95 -resize 120 - /tmp/transform_9f856aed71d9.jpg) MW_INCLUDE_STDERR=1;MW_CPU_LIMIT=0; MW_CGROUP=; MW_MEM_LIMIT=307200; MW_FILE_SIZE_LIMIT=102400; MW_WALL_CLOCK_LIMIT=180; MW_USE_LOG_PIPE=yes [exec] Probably exited with signal 6: /bin/bash /var/www/<path>/includes/shell/limit.sh (/usr/bin/gs -sDEVICE=jpeg -sOutputFile=- -dFirstPage=1 -dLastPage=1 -dSAFER -r150 -dBATCH -dNOPAUSE -q <pathToPDF> | /usr/bin/convert -depth 8 -quality 95 -resize 120 - /tmp/transform_9f856aed71d9.jpg) MW_INCLUDE_STDERR=1;MW_CPU_LIMIT=0; MW_CGROUP=; MW_MEM_LIMIT=307200; MW_FILE_SIZE_LIMIT=102400; MW_WALL_CLOCK_LIMIT=180; MW_USE_LOG_PIPE=yes RETURN CODE: 134 ERROR: /bin/bash: line 1: 27183 Done /usr/bin/gs -sDEVICE=jpeg -sOutputFile=- -dFirstPage=1 -dLastPage=1 -dSAFER -r150 -dBATCH -dNOPAUSE -q <pathToPDF> 27184 Aborted | /usr/bin/convert -depth 8 -quality 95 -resize 120 - /tmp/transform_9f856aed71d9.jpg [thumbnail] Removing bad 0-byte thumbnail "/tmp/transform_9f856aed71d9.jpg". unlink() succeeded
Extension was setup following Extension:PdfHandler#Debian.
MW Version: 1.30
PHP: 7.1.2
Ghostscript / Poppler-Utils / Imagick are installed and functioning