On 2018-08-29 11:18, Mark Johnston wrote: > On Wed, Aug 29, 2018 at 07:44:31AM +0200, Alexander Leidinger wrote: >> >> Quoting Mark Johnston <markj_at_freebsd.org> (from Tue, 28 Aug 2018 >> 10:48:42 -0400): >> >>> 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? >> >>>> That is not something that a compat-xx package can handle. >>> >>> s/package/kernel option/? >> >> Sorry, the COMPAT_FREEBSDx kernel options was what I had in mind when >> I wrote this. >> >>>> 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. >> >> If the new top is summing the 3 up anyway, it sounds like we could >> provide the old one as backwards compatibility, even if it is >> redundant. I rather have an redundant counter and an old top working >> (in the generic case of what we promise to our users; in this specific >> case for me I just need to get around to update the jails on the >> corresponding systems), than bailing out without displaying anything. > > I'm inclined to agree, especially since this (running older top(1)s) has > come up before when I removed some VM sysctls: > https://reviews.freebsd.org/D16943 > _______________________________________________ > freebsd-current_at_freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to "freebsd-current-unsubscribe_at_freebsd.org" > I misunderstood previously (COMPAT_FREEBSDxx vs the compat-xx package). I am in agreement with Mark about fixing this for 12.0 -- Allan Jude
This archive was generated by hypermail 2.4.0 : Wed May 19 2021 - 11:41:18 UTC