On Wed, 2006-01-11 at 21:26 +0100, Molle Bestefich wrote: > Alasdair G Kergon wrote: > > There are several races. The code makes some ordering assumptions > > about the I/O but does nothing to enforce those assumptions. > > So if you're unlucky and I/O happens to complete in the wrong order > > or too soon you can see transient corruption in the snapshot or > > reference memory that has been freed and perhaps reallocated to > > something else. > > Thanks a lot for the status report. > > > Some references: > [snip] > > Thanks. I opened a bug report myself at one point: > https://bugzilla.redhat.com/bugzilla/attachment.cgi?id=120937 > > > Not actively developed, no. Long-term we want to replace it with > > something better. does this mean/confirm linux 2.6.x will not have a stable snapshot support any time soon? i believe tons of people want linux has a stable snapshot support. > > That's really too bad :-(. > There's a lot of people over in the Xen community that could *really* > use something like dm-snapshot if it was stable and production mature. > > > But at the moment I'm reviewing the existing code > > and fixing as many problems as I can find. > > Sounds great. Shout out if you need help :-). > (With testing or other monkey work, not C coding. I'm not a good C coder.) > > Thanks! > > -- > > dm-devel@xxxxxxxxxx > https://www.redhat.com/mailman/listinfo/dm-devel -- dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
