On 11/5/20 9:02 AM, Patrick O'Callaghan wrote:
The swapon(8) man page says:
The swap file implementation in the kernel expects to be able to write
to the file directly, without the assistance of the filesystem. This is a
problem on files with holes or on copy-on-write files on filesystems like Btrfs.
As I'm getting OOM errors when I try to run a VM, it looks like I need
a swap file or partition. I'd prefer to use part of my (large) SSD for
this, but currently it's entirely formatted as BTRFS. Do I need to
resize the BTRFS partition rather than using a swap file?
Yes. But have you enabled zram yet for swap?
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