Date: Wed, 24 Sep 2008 11:57:22 -0400 (EDT) From: "Tuc at T-B-O-H.NET" <ml@t-b-o-h.net> To: i.tanusheff@procreditbank.bg (Ivailo Tanusheff) Cc: freebsd-questions@freebsd.org Subject: Re: [freebsd-questions] Re: Machine locking up Message-ID: <200809241557.m8OFvMx2011592@himinbjorg.tucs-beachin-obx-house.com> In-Reply-To: <OF8C6DB934.EED8DD50-ONC22574CE.00314AA4-C22574CE.003167E2@procreditbank.bg>
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Hi, Might be on track there. The default "background_fsck" is on and the first time I didn't see any of the fsck syslog messages. On the second reboot, I see them all. Oddly, on the reboot I see the first one done in 12 minutes from the boot, yet the prior boot went over an hour before it locked up. I did run into some oddness though. I found it was doing the final fsck on a 1.1TB filesystem, so I wandered into '/mountpoint/.snap' and did an "ls -lt". It hung. When I did a CTRL-T, it told me it was in a spinlock. I ran top and found I had 1/2 a dozen processes also in spinlock. I was patient this time (And had other multiple VTYs logged in) so I waited it out. All of a sudden all the spinlocks stopped, the processes and ls completed, but it still was in pass 5 at 95%. It sat there for a while before finally sending the output to syslog and <KNOCK KNOCK> things are doing fair. I'm letting the system have it easy for a few days before I put a load back onto it (4 SETI). The 2nd part to recompile kernel/world... I don't worry too much doing that. Its the "install" part that gives me the willies. I've done that before on a system that was "acting up" and on reboot it just "acted dead". I remember I had to hand copy some libraries over after remaking AGAIN and things started to pick up. But scary as heck. The system finally died totally about a month later. Thanks, Tuc > > I suggest you reboot in single user mode and fsck -fy the mount points you > use. > If the problem persists - you might recompile the kernel and world. > > Regards, > Ivailo Tanusheff > > > > > > "Tuc at T-B-O-H.NET" <ml@t-b-o-h.net> > Sent by: owner-freebsd-questions@freebsd.org > 24.09.2008 10:56 > > To > freebsd-questions@freebsd.org > cc > > Subject > Machine locking up > > > > > > > Hi, > > We had a power failure at the datacenter we colocate at, > and all our > servers went down. > > One is acting up ever since. It rebooted but wasn't > accessible. I > tried to log in via our KVM and got the login/pass, but when it did the > /etc/motd and rest it locked up. CTRL-C and CTRL-\ didn't do anything. > The remote KVM could C-A-D and the machine rebooted. > > Once it rebooted it seemed ok, but then locked up again > while in use. > The odd thing was I remembered to try CTRL-T, and got : > > load: 0.00 cmd: login 1188 [sysctl lock] 0.00u 0.00s 0% 176k > > on the session I was trying to log in on, and on the > session I was > doing a tail, I saw : > > load: 0.00 cmd: tail 2013 [proctree] 0.00u 0.00s 0% 0k > > I could tab between VTYs, but logins wouldn't accept > input, and > I couldn't C-A-D this time around. I could telnet to a special port on it > for monitoring and get a reply, but SSH/sendmail didn't reply. > > Its a FreeBSD 5.5 (I can't upgrade it, sorry).... > > Any clues what to look for? > > Thanks, Tuc
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