re: kern/56329: nvme(4) takes long time to umount

[matthew green <mrg%eterna.com.au@localhost>]

>  Next time you run a bulk build please do the unmount with the
>  script attached as "sh do_unmount.sh | tee do_unmount.log" and
[ ...]
>  do_unmount /build/netbsd-local/src
>  do_unmount /build/netbsd-local/xsrc
>  do_unmount /build/netbsd-current/src
[ ...]
>  do_unmount /build

one of the systems i see the problem on is currently running
a pkg build of over 1000 packages, and usually will see this
problem.  this is an arm64 16-core machine with 64GB ram and
a single 1T nvme.  ie, everything is just "/" for me.  is there
a way to modify this script usefully for me?  i'm not sure how
much will be written to any fs :)

thanks.


.mrg.