On Sun, Feb 14, 2016 at 10:04:10PM -0800, Marc MERLIN wrote: > I was able to make one bcache ok, but when trying to make a 2nd one > where I only have a backing device, I'm getting repeated page allocation > failures. > > Just to be clear, this is what I want to do: every new HD backed device > will have bcache on top even if I don't have a cache device for it, so > that I can add bcache later. > Is it something reasonable to do? Setup partitions as bcache backing > devices without a cache device for them? > > So right now, I'm trying to do > md5 - bcache - dmcrypt - btrfs > > So I did > make-bcache -B /dev/md5 > echo /dev/md5 > /sys/fs/bcache/register > > and it fails: > bash: page allocation failure: order:4, mode:0x2040d0 You want CONFIG_COMPACTION=y -- To unsubscribe from this list: send the line "unsubscribe linux-bcache" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html