Date: Sat, 18 Oct 2008 00:20:49 +0200 From: Willem Jan Withagen <wjw@digiware.nl> To: current@freebsd.org Subject: Freezing or stalling current system Message-ID: <48F90FC1.3040503@digiware.nl>
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I first tought is was because I was trying to get to run a kernel under XEN on Ubuntu, but now I have the same problem on a spare dual opteron system.... What happens is that the system runs for a while especially if the network is not connected. The network on the opteron is a bge 5705 onboard chip. XEN uses the xn0 xen-device. Once the network is fired up it does not take too long for the system to "Freeze". On the XEN system I could get thing running again most of the time by just pressing ^T. That would get packets reflowing. I'm using nfs/tcp mounted disks and rsync. On the opteron system things are a little harder to get it revived. - Some of the freezes are hard. Can't break into the debugger with the keyboard. Left the system over night,but it never got back to live. - Some of the freezes are not real freezes but things just stall for a while and then continue again.... - Some freezes let me allow to break into the debugger, and then just going 'cont' gets the things going for a short while. I'm sort of assuming that the bge0: timeouts and coalesced links are due to the freezing. So my very amature conclussion is that things are "deadlocked" somewhere. But I need some guidance to be able to give more usefull info. I anyone wants to hold my hand, I'll set it up with a serial console and hook it up to another system for easier logging. --WjW
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