On Jul 17, 2012, at 19:22 , Orion Poplawski wrote: > Our SL6.2 KVM and nfs/backup server has been crashing frequently recently > (starting around Fri 13th - yikes!) with Kernel panic - Out of memory and no > killable processes. The server has 48GB ram, 2GB swap, only about 15GB > dedicated to VM guests. I've tried bumping up vm.min_free_kbytes to 262144 > to no avail. Nothing strange is getting written to the logs before the crash. > > Happening with both 2.6.32-220.23.1 and 2.6.32-279.1.1. > > Anyone else seeing this?
Not on our KVM servers (which don't have any other duties though), which have been running -220.23.1 for three weeks. > Any other ideas? Is swap space sufficient? Have you modified vm.overcommit_* ? Doing so may help turning the panics into allocation failures that can be handled. Do any slab pools keep growing, to an unusual size? -- Stephan Wiesand DESY -DV- Platanenenallee 6 15738 Zeuthen, Germany
