Date: Mon, 09 Feb 2015 11:41:37 -0500 From: Kurt Lidl <lidl@pix.net> To: freebsd-stable@freebsd.org Subject: Re: freebsd-update and hang during reboot Message-ID: <54D8E341.101@pix.net> In-Reply-To: <2F9DC176-912C-40C0-BAB7-DB66BD572ABA@vnode.se> References: <2F9DC176-912C-40C0-BAB7-DB66BD572ABA@vnode.se>
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Joel wrote: > Hi, > > Just about every machine I have seems to hang after running freebsd-update and doing a reboot. The last message on the screen is "All buffers synced” and it just freezes. > > This happens when doing a freebsd-update and going from 10.0 to 10.1, but also when doing a fresh 10.1 install and using freebsd-update to get the latest -pX security patches. As soon as I reboot the machine, it hangs. > > I’ve tried it on several different HP ProLiant models, on Intel NUCs and on VMware virtual machines. Same phenomenon everywhere. It’s really easy to trigger: just install 10.1, use default settings everywhere, freebsd-update fetch/install, shutdown -r now and BOOM. It hangs. I think I’ve seen it on > > > > > 30 servers or so now. > > Everything works like it should after the initial hang tough - no matter how many times I reboot it completes the reboot cycle just fine. > > I’ve seen several people (mostly on IRC) mention this problem, but no solution. > > Is anyone working on fixing this? I ran into this problem in spades when upgrading a set of servers from FreeBSD 9.0 to 9.1. I happened consistently. Normal reboots worked, but when going from 9.0 to 9.1, it *ALWAYS* hung, and it always hung at the same place, after printing the "All buffers synced" message. I ultimately determined that if I did the following, rather than just a "reboot" or "shutdown -r now 'FreeBSD 9.1-RELEASE upgrade'", it would consistently AVOID the hang: sync ; sync ; sync ; shutdown -o -n -r now "FreeBSD 9.1 install" Your mileage may vary, but you don't have a lot to lose by trying it. -Kurt
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