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Swap mode fails on filesystems that don't support O_DIRECT. #8
This bug has been around for ages, but was only discovered now.
In Swap Mode on Linux, all computation disk access is done using
The problem is that not all filesystems support
The current work-around is to disable journaling on all drives that will be used for swap files.
This will be fixed in v0.7.6 with fall-back logic along with a warning. But the fix will not be backported to v0.7.5 since it conflicts with on-going refactors.