site_archiver@lists.apple.com Delivered-To: darwin-dev@lists.apple.com On Mar 4, 2005, at 8:13 AM, Anton Kuzmin wrote: Anton have you tried disabling crashreporter? /etc/hostconfig Regards.....Peter _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.appl... It does not seem to be a problem with lookupd (or at least it's not just lookupd on it's own). Normally, when lookupd locks up, the UI remains responsive, but in this case the whole UI (except the mouse cursor) locks up as well - as if the window server hung up. But seems to be somewhere deeper in the system, as it looks that every other process hangs up too. But not the kernel itself - as I can ping this computer and establish tcp connections. sounds like you're running into the lookupd lock-up problem. Google for more info. :) I'm experiencing a very strange problem on 10.3.8 with one of our own proxies (smtp/pop3 proxy) - from time to time (once or twice a day), the whole system locks up - I can move the mouse cursor, but everything else becomes completely unresponsive, all applications(even daemons) freeze, but I can ping this computer while it's locked up, and if I try to connect to any standard service (like ftp or ssh) - the tcp connection can be established instantly but no data is ever received by the client (i.e. ftp server prompt). I've tried to run a simple script on this computer that logs top and zprint output every second into a file, and the data from the script shows no apparent anomalies in memory usage just before the computer locks up. Sometimes it unlocks itself after a random amount of time (can be from 20 seconds to a few hours) in which case the top output shows crazy cpu usage percentages for different processes, which total at up to 700-1000% (which could be just a problem with top getting confused by the lock up). Are there any other monitoring utilities except top and zprint that I can use to figure out what's going on? I tried the same configuration on another computer and it's the same problem again, which, I think, rules out possible hardware problems. Any insight on what other resources(or lack thereof) can cause this behavior and how to monitor them would be very helpful. You said that you can ping it while the system is unresponsive, but can you connect via ssh? If not, try to keep an established connection via ssh from another system, and then test with that when the lockup occurs. I would suspect that the system or UI server is being starved of resources somewhere. Not memory, but maybe sockets, mbufs or some other network-type resource. This email sent to site_archiver@lists.apple.com