Date: Fri, 20 Sep 2013 10:36:15 -0400 From: Gary Palmer <gpalmer@freebsd.org> To: Thomas Laus <lausts@acm.org> Cc: freebsd-stable@freebsd.org, Dewayne Geraghty <dewayne.geraghty@heuristicsystems.com.au> Subject: Re: FreeBSD 9-Stable + Atom D510 Freeze Message-ID: <20130920143615.GA40029@in-addr.com> In-Reply-To: <523C49A9.5719.289C1E@lausts.acm.org> References: <523AFF46.29244.4657A1@lausts.acm.org> <523B91F2.8070004@heuristicsystems.com.au> <523C49A9.5719.289C1E@lausts.acm.org>
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On Fri, Sep 20, 2013 at 09:12:09AM -0400, Thomas Laus wrote: > > Tom, > > I have had multiple D510's and now D525's that are part of my test > > systems, all are 4GB machines and all run the latest (ie 2 days old) 9.X > > Stable. They're faultless. I have a D510 in production serving 30 > > users - yes its a 1G system running, sendmail, squid, samba as PDC. > > It's been in place for at least 7 months and runs without any hiccups. > > > > Though I would point out that the Atom processor does NOT do out of > > order processing, so a VIA motherboard that is of lower GHz builds > > worlds/ports in less time that a supposedly faster Atom. > > > > Your question re HT, yes HT introduces some additional latency, but is > > unlikely to be the problem. > > > Thanks for the information about the HT CPU's. I asked the question to the > group because I did not know if they were functionally any different than a > traditional CPU. I successfully built my problem port, Tshark, yesterday > while monitoring 'top' on another console. I observed that all 4 cpu's were > in service for the build and at times were running at 100 percent each. The > State column on all 4 occasionally showed a 'pfault' on all 4 but recovered > and the build continued to successful completion. > > > When I experience something like spurious reboots and it is definately > > not hardware, then I delete /usr/src and /usr/ports and perform a > > complete rebuild. (Yes seriously, and on the Atom's we're talking days, > > aren't we :) ) > > > I have been using this Atom D510 since it was released about 3 years ago. It > ran on FreeBSD 8-Stable until about a month ago. I installed an Intel 520 > SSD and loaded a fresh copy of a FreeBSD 9 Snapshot. After getting the > source and ports tarballs, I used svnup to bring both up to date. I built > and installed world and the kernel to bring me up to Stable. I rebuilt all > of my ports using Portmaster. > > The spurious reboot issue existed for the last 3 years when running FreeBSD-8 > Stable. I never had the problem building world or kernel. It only occurred > when building some ports. Subversion and Tshark more often than others. > FreeBSD 9-Stable was frozen when I tried to build tshark, but I was able to > build it OK yesterday. Everything hardware related other than the Atom > microprocessor and the Intel motherboard itself is new. The OS is now a > different version and all of the source was rebuilt monthly. The ports have > been been built many times in the last 3 years. When building kernel & world do you use the '-j' argument to do parallel builds? AFAIK thats not done by default, but it is for some ports. Gary
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