----- Original Message -----
From: "Will Andrews" <w...@firepipe.net>
To: "John Baldwin" <j...@freebsd.org>
Cc: "Steven Hartland" <kill...@multiplay.co.uk>; "src-committ...@freebsd.org" <src-committ...@freebsd.org>;
<svn-src-all@freebsd.org>; <svn-src-h...@freebsd.org>
Sent: Friday, September 19, 2014 6:35 PM
Subject: Re: svn commit: r271788 -
head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs
I found that neither TUNABLE_INT nor CTLFLAG_RWTUN work with this
particular implementation of the tunable, so there is a regression
that needs to be fixed (i.e. vfs.zfs.debug_flags always comes up 0 no
matter what's in loader.conf). I believe it's limited to this
particular tunable, however, because I tested another SYSCTL_PROC that
had CTLFLAG_TUN set and it worked.
Given I pointed you in this direction I kinda felt guilty that you where having
issues
so had a dig.
It took quite a few printf's and a reboots but I found the cause.
The name of your sysctl is conflicting with the 4th loader which believes
your vfs.zfs.debug_flags is a module _flags setting as it matches the reserved
suffix *_flags as detailed in loader.conf (5).
I think the loader should only consider [a-z0-9_]+_flags as module flags as I
can't see
any modules having any other chars expecially not "." in their name; but I've
no idea
how to do that in 4th.
So the fix is to rename you sysctl e.g. vfs.zfs.debugflags.
Hope this helps.
Regards
Steve
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