Hi Iain, sorry, the report slipped through my attention, when it was submitted.
cpl_mask.c has quite a few problems with unaligned access. I had a similar bug open for this when sparc was a release architecture, but closed if after the removal of sparc: https://bugs.debian.org/677968 The problem is forwarded to ESO (Jira id there is PIPE-3890); unfortunately their bug database is not publicely accessible. Up to now, they didn't any action to fix it, since they don't support anything beside x86. So, I have no idea how to fix this myself. BTW, on Debian arm platforms, the problem does not appear: https://buildd.debian.org/status/logs.php?pkg=cpl&ver=7.0-3 What is specific on Ubuntu here? Best regards Ole