site_archiver@lists.apple.com Delivered-To: darwin-dev@lists.apple.com A recap: What course of action would you take to debug it? Thank you Giuliano _______________________________________________ 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... sorry to disturb again, but the machine I am debugging cannot be left off-line too long as it is a production server (and is at a remote location), so I am looking for some advice. PowerMacG4 DP400 10.4.8 + security update 007 + ACARD 6890M SATA RAID configured for mirroring. Symptoms: every few days the machine hangs (it looks like the old "rainbow of death") remaining responsive to pings but otherwise inaccessible from both the console and ssh. Even telnet to an open tcp port (say 80) will establish the connection but the process on the other side will not respond any further (in this example a GET / HTTP/1.0 <cr> <cr> will not give anything). I have two prime suspects: the ACARD (driver or card) and lookupd. The ACARD is suspect because this is the only machine running 10.4.8 I have mounting this card and the only one suffering from these hangs. lookupd is suspect simply because the symptoms are so similar to what one would get when lookupd stops working. The machine, as I wrote previously, is set now to perform a kernel dump to another machine on the LAN, but I am not sure at all that this will help. Too much seems to be running still for the dump to point at the source of the problem. I hope to be proven wrong when I will manage to get the kernel dump. This email sent to site_archiver@lists.apple.com