On Wed, 2004-07-21 at 04:51, Charles wrote: > Dear all, > > Recently one of our servers randomly stop responding, but it does not hang. > > When the problem happens, all the network services stop responding, but > the server is still running. Then many processes are queued up and cause the > avg no. of process running sky to over 100 in 10min! If I was connecting an > ssh to the server, it just stop response but the connection is still there. > ping also has response. > > The most strange thing is, when I press an ENTER key at the console, the > problem solved instantly and everything back to normal. Even my ssh connection > will have response again. If this is a server/BIOS/kernel/module combo that has been running without this problem for a while, my guess is you have have failing hardware. Feels like an interrupt problem (kernel/module can't clear an interrupt, keyboard interrupt kicks things along??). What cpu usage like? You might try rebuilding/installing the kernel/modules (good excuse to upgrade to latest 2.4), and if the problem persists I'd pin it on the hardware. Could be a bus device or something on the mainboard. This might be enough of a brain-teaser that you could post it on the kernel list and not get ridiculed. CD - : send the line "unsubscribe linux-admin" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
