zconfigd not applying zsysctl.conf after boot

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zconfigd not applying zsysctl.conf after boot

Postby 0xdeadbeef » Sun Jun 28, 2020 7:52 am

Hi,

due to being "bound" to my laptop for more work than in the past weeks, I noticed my zsysctl.conf settings (limiting RAM usage etc) not being active. After some finding I noticed that zconfigd gets started at boot time, but throws several "top level name kstat in <sysctl var> is invalid" errors (log below). I've booted the machine several times, it's always the same. Killing the zconfigd process gets launchd to restart it and then it's setting the sysctls just fine.

org.openzfsonosx.zconfigd.err:
Looking for service matching net_lundman_zfs_zvol
Found match
Running /usr/local/bin/zsysctl -f /etc/zfs/zsysctl.conf
top level name kstat in kstat.zfs.darwin.tunable.zfs_dirty_data_max is invalid
top level name kstat in kstat.zfs.darwin.tunable.zfs_arc_meta_limit is invalid
top level name kstat in kstat.zfs.darwin.tunable.zfs_arc_max is invalid
Starting the run loop
Looking for service matching net_lundman_zfs_zvol
Starting the run loop
Found match
Running /usr/local/bin/zsysctl -f /etc/zfs/zsysctl.conf
top level name kstat in kstat.zfs.darwin.tunable.zfs_dirty_data_max is invalid
top level name kstat in kstat.zfs.darwin.tunable.zfs_arc_meta_limit is invalid
top level name kstat in kstat.zfs.darwin.tunable.zfs_arc_max is invalid
Looking for service matching net_lundman_zfs_zvol
Found match
Running /usr/local/bin/zsysctl -f /etc/zfs/zsysctl.conf
Starting the run loop
Looking for service matching net_lundman_zfs_zvol
Starting the run loop
Found match
Running /usr/local/bin/zsysctl -f /etc/zfs/zsysctl.conf
top level name kstat in kstat.zfs.darwin.tunable.zfs_dirty_data_max is invalid
top level name kstat in kstat.zfs.darwin.tunable.zfs_arc_meta_limit is invalid
top level name kstat in kstat.zfs.darwin.tunable.zfs_arc_max is invalid
Looking for service matching net_lundman_zfs_zvol
Found match
Running /usr/local/bin/zsysctl -f /etc/zfs/zsysctl.conf
Starting the run loop


org.openzfsonosx.zconfigd.log is empty - until I kill the initial zconfigd process and the new one does it's job.

Machine is a 2019 MacBook Pro 16 running the current OS X 10.15.5 and the latest 1.9.4 package

Couldn't find anything on the forum or on the projects GitHub repo that indicates that this is a known problem?
0xdeadbeef
 
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Joined: Tue Feb 23, 2016 11:23 pm

Re: zconfigd not applying zsysctl.conf after boot

Postby lundman » Thu Jul 02, 2020 9:16 pm

Ah interesting - I think there was a sleep in zsysctl to wait until kernel module as loaded, wonder if that is going wrong.
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