On 10/24/2010 05:32 PM, dave b wrote: > I am forwarding this to the linux kernel mailing list to see if anyone > is actually interested with this bug or not. I suspect that the patch > to allow DM-CRYPT to use multiple cpus(Scale to multiple CPUs) will > remove most of the problem but *not* all of it. As I previously was > triggering the bug on a single core system. Hi, sorry for not updating the bug. We know about this. Fix was expected to be based on top of the Andi's dm-crypt per-cpu patch but unfortunately I found serious problems there (see this thread http://lkml.org/lkml/2010/10/20/215 ) So there are now several known situations when dm-crypt doesn't perform as expected (another problem just appeared when using CFQ, (because dm(-crypt) lost the issuing process reference) see http://lkml.org/lkml/2010/10/24/59). Milan -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel