Date: Mon, 7 Feb 2011 01:03:47 -0800 From: Jeremy Chadwick <freebsd@jdc.parodius.com> To: Zaphod Beeblebrox <zbeeble@gmail.com> Cc: Greg Bonett <greg@bonett.org>, freebsd-stable <freebsd-stable@freebsd.org> Subject: Re: 8.1 amd64 lockup (maybe zfs or disk related) Message-ID: <20110207090347.GB20545@icarus.home.lan> In-Reply-To: <AANLkTindC=qJkNeZmxxkcY2trpnP9xO50=ugxFETGkhJ@mail.gmail.com> References: <1297026074.23922.8.camel@ubuntu> <20110207045501.GA15568@icarus.home.lan> <AANLkTindC=qJkNeZmxxkcY2trpnP9xO50=ugxFETGkhJ@mail.gmail.com>
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On Mon, Feb 07, 2011 at 02:50:42AM -0500, Zaphod Beeblebrox wrote: > On Sun, Feb 6, 2011 at 11:55 PM, Jeremy Chadwick > <freebsd@jdc.parodius.com> wrote: > > > Given that you're running 8.1-RELEASE, what sort of ZFS tunings are you > > using in /boot/loader.conf? Tuning is required on this version > > I haven't seen any new tuning recommendations. Has the tuning > required on an 8G amd64 platform changed from 8.0 to 8.1? They're discussed practically on a monthly basis on the mailing lists (either freebsd-fs or freebsd-stable). Keeping track of them is almost impossible at this point, which is also probably why the Wiki is outdated. See my other follow-up post to the OP regarding what most of the tunings should be. On an 8.0 system, there may be some tunings I listed off that won't work (loader(8) will complain "no such tunable" and won't boot). I think the UMA tunable is one of those. Please don't ask me "how was I supposed to know about any of this?" -- basically folks are ""expected"" to follow every single CVS or SVN commit to the FreeBSD tag you track/use, and are expected to read the diffs when there's a commit and "figure it out themselves". The release notes between 8.x and 8.x+1 don't disclose tunable changes either. If you don't like this model/approach, there are appropriate channels to send your complaints through -- but I myself simply gave up. -- | Jeremy Chadwick jdc@parodius.com | | Parodius Networking http://www.parodius.com/ | | UNIX Systems Administrator Mountain View, CA, USA | | Making life hard for others since 1977. PGP 4BD6C0CB |
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