On Fri, May 28, 2010 at 12:13:51PM +0300, Andriy Gapon wrote: > on 28/05/2010 10:30 Howard Leadmon said the following: > > I know there used to be some issues with this a while back, but thought > > with the 8.x FBSD servers most of this tuned itself, or then again maybe > > this is something different. > > > > > > > > For the first time I ever recall, I found my FreeBSD 8 server was crashed > > this past morning, with the following error: > > > > > > > > panic:kmem_malloc(131072):kmem_map to small: 1296826368 total allocated > > > > cupid=4 > > O wow, this is an amd64 system (with 4G RAM) and you've got "kmem_map too > small". That's very very strange.
It is? On amd64, vm.kmem_size (not vm.kmem_size_max) is what has to be increased. I can point folks to the "official" statement from pjd@ and some others if need be. For a very long time I questioned this because for an even longer amount of time we were being told to increase vm.kmem_size_max. vm.kmem_size_max, by default, is already huge on amd64 (~320GB or something like that). Proof: vm.kmem_size_max: 329853485875 To the OP: you will need to increase vm.kmem_size in /boot/loader.conf and reboot the system. "What value do I pick?" With 4GB, I would recommend you use these two variables: vm.kmem_size="2048M" vfs.zfs.arc_max="1536M" This will increase the available kmem, and also limit the ARC size explicitly to nothing larger than 1.5GB. This should stabilise your system. -- | Jeremy Chadwick j...@parodius.com | | Parodius Networking http://www.parodius.com/ | | UNIX Systems Administrator Mountain View, CA, USA | | Making life hard for others since 1977. PGP: 4BD6C0CB | _______________________________________________ freebsd-amd64@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-amd64 To unsubscribe, send any mail to "freebsd-amd64-unsubscr...@freebsd.org"
