Re: aarch64 reliability issues

[email protected] (Greg Troxel) writes:

>  There's no pressure mechanism to free vnodes from zfs under memory
>  pressure, and those vnodes still hold refs to other memory.

Yes. That's also true for any other filesystem.


>The workaround is to set kern.maxvnodes low. and to be gentle on the
>combination of dirty pages and memory pressure.  Pro Tip: Don't run
>syncthing on GB of stuff while doing heavy builds.

I have a local patch to add pressure to maxvnodes when there is
a memory shortage. But it's a bit difficult to exercise.