Re: kern/54733: ZFS warnings during default boot, even if no ZFS is in use

[John Nemeth <jnemeth%cue.bc.ca@localhost>]

The following reply was made to PR kern/54733; it has been noted by GNATS.

From: John Nemeth <jnemeth%cue.bc.ca@localhost>
To: gnats-bugs%netbsd.org@localhost, kern-bug-people%netbsd.org@localhost, gnats-admin%netbsd.org@localhost,
        netbsd-bugs%netbsd.org@localhost
Cc: 
Subject: Re: kern/54733: ZFS warnings during default boot, even if no ZFS is in use
Date: Tue, 3 Dec 2019 13:15:12 -0800

 On Dec 3,  5:35pm, martin%NetBSD.org@localhost wrote:
 }
 } >Number:         54733
 } >Category:       kern
 } >Synopsis:       ZFS warnings during default boot, even if no ZFS is in use
 } >Arrival-Date:   Tue Dec 03 17:35:00 +0000 2019
 } >Originator:     Martin Husemann
 } >Release:        NetBSD 9.99.19
 } >Organization:
 } The NetBSD Foundation, Inc.
 } >Environment:
 } System: NetBSD painkiller.duskware.de 9.99.19 NetBSD 9.99.19 (GENERIC64) #88: Tue Dec 3 18:17:17 CET 2019 martin%seven-days-to-the-wolves.aprisoft.de@localhost:/work/src/sys/arch/evbarm/compile/GENERIC64 evbarm
 } Architecture: aarch64
 } Machine: evbarm
 } >Description:
 } 
 } With /etc/rc.d/zfs trying to bring up ZFS pools early we now get scary
 } warnings at boot time on machines that never saw a ZFS:
 } 
 } root file system type: ffs
 } kern.module.path=/stand/evbarm/9.99.19/modules
 } WARNING: ZFS on NetBSD is under development
 } ZFS NOTICE: Prefetch is disabled by default if less than 4GB of RAM is present;
 } to enable, add "vfs.zfs.prefetch_disable=0" to /boot/loader.conf.
 } ZFS filesystem version: 5
 } Lid Switch: lid opened.
 
      The "ZFS NOTICE" is clearly a FreeBSD specific message.
 /boot/loader.conf doesn't exist on NetBSD.  Besides being noisy,
 it is wrong.
 
 } It would be better if trying to use ZFS would be triggered by some config
 } file, or the kernel be silent about the whole action (who cares what version
 } is in use if it is not in use?)
 
      It could also be triggered by the first attempt to actually
 use ZFS, i.e. the presence of a ZFS file system.
 
 } >How-To-Repeat:
 } Boot current.
 } 
 }-- End of excerpt from martin%NetBSD.org@localhost