On Sun, Dec 05 2010 at 3:28pm -0500, Andi Kleen <andi@xxxxxxxxxxxxxx> wrote: > > As another thought, what version of GCC are people using who are having difficulty? Could this perhaps be a compiler-related issue? > > A compiler problem seems very unlikely here. > > What may be an useful experiment would be to test 2.6.37-rc + ext4 over > device mapper, but not dmcrypt. If that fails too then it's likely > some generic device mapper problem. That would only prove its not dm-crypt; it would not absolve a non-DM 2.6.37-rc change at all. Leveraging the fact that 2.6.36 + parallel dm-crypt is reportedly very solid: maybe these would be more interesting (each would keep the latest parallel dm-crypt patch overlayed for all tests): 1) Test 2.6.37-rc prior to all flush+fua changes (only changes DM saw for 2.6.37-rc so far). 2) Back out all ext4 changes that were merged for 2.6.37-rc - though Heinz is using XFS exclussively and still reported corruption 3) A full git bisect of good=v2.6.36 bad=v2.6.37-rc4 would be the most interesting. Albeit much more tedious. Mike -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel