On Tue, Oct 29, 2002 at 11:53:44AM -0800, Gregory K. Ade wrote: > On Tue, 2002-10-29 at 01:10, Heinz J . Mauelshagen wrote: > > > > Gregory, > > > > as Jon already thought, this seems to be a flaw in the VM subsystem. > > > > The ksymoops you provided shows that, because it fails in vmalloc when > > lvm_snapshot_alloc_hash_table() tries to allocated virtual memory for the > > copy-on-write exeception table it needs to track the changes which happen > > to the original logical volume. > > > > Is there any chance to prove that by running the system with less than 2GB > > of memory and _without_ high memory support for a test run? > > > > Regards, > > Heinz -- The LVM Guy -- > > Actually, yes, I can run this on several other smaller-memory systems. > I've got a machine I've been working on setting up that's 2GB exactly, > and several others running 2.4.19 & LVM 1.0.5 with less than 1GB of > ram. However, I've not had any of these systems produce errors like > these. I can run the 2GB system with and without high memory support > and try to induce a similar failure. > > Are there any specific tests you'd like me to run on this other system, > in case I can't induce an Oops on it? Gregory a _different_ system is unlikely to help. I was asking for changes to take affect on the system where you do have the problem. If you have a chance to reconfigure the failing system temporarily, running what you did before should reproduce the same problems (segfault on snapshot creation after fresh reboot) in case there's _no_ bug in the large/high memory support. My assumption is that it will not. > > Thanks, > > Gregory > > -- > Gregory K. Ade <gkade@bigbrother.net> > http://bigbrother.net/~gkade > OpenPGP Key ID: EAF4844B keyserver: pgpkeys.mit.edu -- 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 =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- _______________________________________________ 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/
