Date: Wed, 12 Dec 2012 16:24:22 -0600 From: dweimer <dweimer@dweimer.net> To: <freebsd-stable@freebsd.org> Subject: Re: 9.1 system hung with top open on console, yet responsive on ssh =?UTF-8?Q?sessions=3F?= Message-ID: <258779adcca4634d17cd2a4122ebbdea@dweimer.net> In-Reply-To: <17622505fce802a8359c4a37f120f9bf@dweimer.net> References: <17622505fce802a8359c4a37f120f9bf@dweimer.net>
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On 2012-12-12 15:58, dweimer wrote: > I ran into a weird one, have a 9.1 test system (virtual in VMWare > Workstation 9) that I left running logged into the console with top > running. The console the top process it was running appear to have > hung, can't use ALT + F1,F2... to switch virtual consoles. However I > can log in to the system via ssh, if you run top you get the same > information on the console, can even interact with it, switching > search order and the like. systat also seems to not display current > information. I can do everything I have tried through the console > except I noticed that syslog isn't writing data and a > /etc/rc.d/syslog > restart hung as well. > > This is just a test system running one single Java program (Ubiquiti > UniFi controller software) that is responding just fine as well. > Thought maybe it was disk access related, however I have confirmed > that I can read and write to the disk, used dd if=/dev/random > of=/.../random.out..., to each file system and was able to write to > all of them. Before I reboot the system (I have a feeling it won't > reboot cleanly), I was curious if anyone else has ever seen this and > what I should check to possibly identify what caused the problem. Might have discovered its probable related to <http://docs.freebsd.org/cgi/getmsg.cgi?fetch=294987+0+archive/2012/freebsd-stable/20120805.freebsd-stable>; as I noticed as well that that date command was always returning yesterdays date with the time set the same as top returned. I went ahead and reset the virtual machine with the sysctl value set as listed in the thread linked to above. will see if I hit the issue again or not. Though this application will be moved off this test system to my actual serve as soon as the 9.1-Release is official. so it may not be running long enough to know if that is the real solution. -- Thanks, Dean E. Weimer http://www.dweimer.net/
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