Date: Tue, 19 Jul 2016 15:46:54 +0200 From: Randall Stewart <rrs@netflix.com> To: Glen Barber <gjb@freebsd.org> Cc: Gleb Smirnoff <glebius@freebsd.org>, src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: Re: svn commit: r302998 - head/sys/kern Message-ID: <03E667D5-A4C9-47B9-A8DD-49ECD0E2B7EB@netflix.com> In-Reply-To: <20160719122545.GC65494@FreeBSD.org> References: <201607180929.u6I9T9Uw063705@repo.freebsd.org> <64C1543A-3EDE-4852-88EA-5B0B78FCF016@netflix.com> <58868615-8255-4D8B-BD9E-8E19A734CB6C@netflix.com> <5E551FA8-C779-45AE-B038-D8B51B53EEAA@netflix.com> <20160719122545.GC65494@FreeBSD.org>
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Glen: My changes work.. I have them running in NF in at least 1/2 dozen machines. I am more than willing to commit them.. they actually are not much different than whats in stable 10.. though I don’t know if the async-drain was MFC’d there.. it needs to be in for TCP.. or else you will have yet another mess in that respect (TCP depends on ASYNC-drain). I can commit what I have.. if you like.. or not.. I really don’t care (I hate kern_timeout.c :-o) R > On Jul 19, 2016, at 2:25 PM, Glen Barber <gjb@freebsd.org> wrote: > > On Tue, Jul 19, 2016 at 01:43:16PM +0200, Randall Stewart wrote: >> Gleb >> >> Ok >> >> I have now updated >> >> https://reviews.freebsd.org/D7135 >> >> You can take this or not… I really don’t care either way… (you are welcome to >> own the kern_timeout.c code I hate it) :-) >> >> Basically when you went off and re-factored kern_timeout.c I had worked in parallel on fixing >> the bugs you were seeing.. There were three distinct problems that I fixed… but then >> you had refactored the stop() routine.. and I thought ok.. thats fine. I had actually thought about >> doing something similar to what you did and was too chicken to poke that much at it.. it has >> always had a nasty habit of biting back when you make a lot of changes :-D >> >> I know my version has worked for quite some time in my testing so I brought it back. >> Complete with its 3 return codes (I only recently switched to your version and thus >> started having difficulties with leaks and crashes)…. >> >> You are welcome not to use this.. I know it works (it ran >> on a number of machines at NF last night.. and we will of course continue testing >> it as we finish our dev testing for the upcoming OCA software release).. For now >> this is what will be going out into the OCA’s at least :-) >> > > I'm honestly done with this topic, and at the point now where I'm > considering backing out all changes to callout(9) and related changes to > the state they were at in stable/10. > > This changes the KBI, and if it needs to be done, it needs to happen > now. We cannot wait for RC1 phase for this, and the amount of churn to > get things into a working state with the current implementation far > outweighs the benefit of the dangers. > > Glen > -------- Randall Stewart rrs@netflix.com 803-317-4952
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