On Fri December 1 2006 12:52, Chuck wrote: > suddenly out of nowhere, on a brand new 1 month old dual opteron machine we > started getting system lockups and crashes.. I managed to track it down to a > bad block in the email mailboxes.. the email server, of necessity for now > must run on the host since it uses 140ip addresses. eventually we will move > everyone to namespace and i can put it into a vserver.. > > now on to my question. > > we have a TON of open files I am sure. Presently there are 20 guests running, > some, like a web server has 260 domain on it and it is quite busy. Are we > approaching or exceeding some kind of system resource limit maybe? > > I never get to see the console since the server is 1000 miles away, but this > morning someone read a msg that seemd to be information only. I have no clue > what this means: Kernel Direct Mapping Table up to 100,000,000 @8000:d800. > > Any clues? Any advice how to set higher resources in the host system if this > is becoming a problem? I have never had to do this before but also have not > worked on a system so large. We are only about half done. I expect there to > be approx 50-60 vservers on this machine with at least 15-20 of them very > busy. > > The host install is 100% stock Gentoo with no modifications other than what > is > needed to run vservers. The kernel is 2.6.18-vs2.0.2-gentoo-r8 with >
if the above kernel version is 2.6.18.2 as kernel.org numbers them, replace it with 2.6.18.3 or newer. The kernel.org-2.6.18.3 has some page handling fixes in it. The 2.6.18.2 can be put into a situation where it does not properly use swap. Note: 'stock <Distribution Name>' does not mean an unmodified kernel. Mike > util-vserver 0.30.211. Everything is compiled 2006.1 gcc 4.1.1 and > glibc .2.4-r4:2.2. > > The disk subsystem is a SATA2 hardware raid5 with all partitions except root > boot and swap, using LVM2. At present there are 27 mount points used. > > > _______________________________________________ Vserver mailing list Vserver@list.linux-vserver.org http://list.linux-vserver.org/mailman/listinfo/vserver
