From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Heinz J . Mauelshagen" Subject: Re: [linux-lvm] Error creating snapshot, "Cannot allocate memory" Message-ID: <20021204125629.A29881@sistina.com> References: <20021202223223.GC21924@ofb.net> <20021203114821.A25161@sistina.com> <3DEC9B03.B83C0078@silicide.dk> <20021203182119.GD21924@ofb.net> Mime-Version: 1.0 In-Reply-To: <20021203182119.GD21924@ofb.net>; from jheiss@ofb.net on Tue, Dec 03, 2002 at 10:21:20AM -0800 Sender: linux-lvm-admin@sistina.com Errors-To: linux-lvm-admin@sistina.com Reply-To: linux-lvm@sistina.com List-Help: List-Post: List-Subscribe: , List-Unsubscribe: , List-Archive: Date: Wed Dec 4 06:04:01 2002 List-Id: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-lvm@sistina.com On Tue, Dec 03, 2002 at 10:21:20AM -0800, Jason Heiss wrote: > On Tue, Dec 03, 2002 at 12:52:35PM +0100, Jon Bendtsen wrote: > > "Heinz J . Mauelshagen" wrote: > > > > > > You don't have enough kernel virtual memory to hold the snapshot exception > > > table in core :( > > > Install more RAM. > > > > I've seen this error as well. In a machine with 1GB memory and the only > > processes > > running were NFS and samba. Just how much memory does it need ? > > > > Indeed, my server has 2 GB of RAM and 1 GB of swap, of which free > reports only a few hundred MB in use. Hmmm... vmalloc() fails to allocate kernel virtual memory. That's why you get the error. Could well be a constraint in vmalloc() in general or in the Redhat kernel you use. Have you tried using a 2.4.20 vanilla kernel and were able to reproduce this (enough free RAM presumed). > > Jason > > > _______________________________________________ > linux-lvm mailing list > linux-lvm@sistina.com > http://lists.sistina.com/mailman/listinfo/linux-lvm > read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/ -- Regards, Heinz -- The LVM Guy -- *** Software bugs are stupid. Nevertheless it needs not so stupid people to solve them *** =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Heinz Mauelshagen Sistina Software Inc. Senior Consultant/Developer Am Sonnenhang 11 56242 Marienrachdorf Germany Mauelshagen@Sistina.com +49 2626 141200 FAX 924446 =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-