Date: Tue, 28 Aug 2018 10:48:42 -0400 From: Mark Johnston <markj@freebsd.org> To: Allan Jude <allanjude@freebsd.org> Cc: freebsd-current@freebsd.org Subject: Re: old top and new -current: missing arcstat sysctl Message-ID: <20180828144842.GA29917@raichu> In-Reply-To: <d7834f4e-f1ca-c02a-6fe1-472b8737058c@freebsd.org> References: <20180828084015.Horde.JUeG828X_SDlJjeJdfmH7pV@webmail.leidinger.net> <d7834f4e-f1ca-c02a-6fe1-472b8737058c@freebsd.org>
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On Tue, Aug 28, 2018 at 10:25:39AM -0400, Allan Jude wrote: > On 2018-08-28 02:40, Alexander Leidinger wrote: > > Hi, > > > > top reports missing sysctl kstat.zfs.misc.arcstats.other_size for > > 12.0-alpha3 with a top from an old-ish -current. > > > > Is/will this be handled via a compat-11 sysctl (my kernel is without > > compat-xx), or did this slip through? > > > > Bye, > > Alexander. > > > > That is not something that a compat-xx package can handle. s/package/kernel option/? > That arcstat was broken up into 3 individual stats, which the > 12.0-alpha3 version of top will sum together for you. > > I don't think we've had compat shims like this for previous versions of > top, I recall having similar issues when the 'laundry' counter was > introduced. IIRC that would have been the inverted case of running a newer top(1) with an older kernel lacking the v_laundry_pages sysctl. In general I'd expect us to support running an older top(1) with newer kernels if we don't have to bend over backwards to provide compatibility.home | help
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