Thread:Project:Support desk/Error in thumbnail creation using MW 1.23.3/reply (3)

With GD it doesn't output anything useful in the log, apparently.

You could try to execute the IM command directly from the shell:

/bin/bash '/var/www/vhosts/mysite.com/test.mysite.com/wiki/includes/limit.sh' 'OMP_NUM_THREADS='\1'\ '\/usr/bin/convert'\ '\-quality'\ '\80'\ '\-background'\ '\white'\ '\-define'\ '\jpeg:size=300x300'\ '\/var/www/vhosts/mysite.com/test.mysite.com/wiki/images/4/41/Test_image.jpg'\ '\-thumbnail'\ '\300x300!'\ '\-set'\ '\comment'\ '\File source: http://test.mysite.com/wiki/index.php?title=File:Test_image.jpg'\ '\-depth'\ '\8'\ '\-sharpen'\ '\0x0.5'\ '\-rotate'\ '\-0'\ '\/tmp/transform_a5f66f9d0695-1.jpg'\ 'MW_INCLUDE_STDERR=1;MW_CPU_LIMIT=180; MW_CGROUP='\\; MW_MEM_LIMIT=307200; MW_FILE_SIZE_LIMIT=102400; MW_WALL_CLOCK_LIMIT=180; MW_USE_LOG_PIPE=yes'

And see if it succeeds or if it prints any error message. Depending on the size of the image, you may need to increase $wgMaxShellMemory.