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? ? Joel
On Sun, Feb 8, 2015 at 2:41 PM, Joel Dahl <joel at vnode.se> wrote:> Is anyone working on fixing this?People are still trying to figure out wtf is going on so they *can* fix it. Several things have been tried and found not to be related. As much information as possible about the machine and kernel configuration on the machines where it happens would be helpful. (note that I am not one of the people working --- or able to work --- on it, so don't send it to me personally. I've just been following it.) -- brandon s allbery kf8nh sine nomine associates allbery.b at gmail.com ballbery at sinenomine.net unix, openafs, kerberos, infrastructure, xmonad http://sinenomine.net
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