Hi again list. my error happened again, this time the errormessage is: Jan 14 21:58:24 lysithea kernel: *pde = 00000000 Jan 14 21:59:26 lysithea kernel: *pde = 00000000 then it totally hangs and is unavaible :( Anyone knows what this can be? I tried the earlier suggestion from the list by disabling the swap, and it has been without swap for about 2 days. (no, the swap didn't ran out). Cheers, Martin > What kind of hard drive? If the hard drive is having a read error when > attempting to grab a chunk of virtual memory stored on the swap partition, > that is a critical error which will freeze any process or thread relying on > that chunk of memory. Your WWW server may be running just fine because it's > currently retained in RAM and not swapped out. > > Download a hard drive utility from the hard drive manufacturer and boot to > an old DOS disk to run it. > > You could alternately boot Linux to single user mode, unmount the swap > partition and try to run an extensive fsck check against it. > > I would try this both now and right after the problem occurs. > > You could also disable your swap partition (/etc/fstab) since you have a > fair amount of RAM just to prove if it's the hard drive or other problem. I > disagree with earlier posting that your RAM could be the problem. That would > show other critical errors that would be unrelated to virtual memory. While > waiting to see if a problem occurs, keep another machine telnetted into your > server running the "top" process so that you get a snapshot of the RAM and > process running just before the freeze occurs. > > > > > > ------------------------------------------------------------------------ > To unsubscribe email security-discuss-request@linuxsecurity.com > with "unsubscribe" in the subject of the message. > > ------------------------------------------------------------------------ To unsubscribe email security-discuss-request@linuxsecurity.com with "unsubscribe" in the subject of the message.