On Wed, Jun 20, 2018 at 01:03:57PM -0400, monty wrote: > Hi, Mike and Joe. Thanks for your reply. I read __commit_transaction > many times and didn't find any problem of 2-phase commit. I use > md-raid1(PCIe nvme and md-raid5) in write-behind mode to store dm-thin > metadata. > Test case: > 1. I do copy-diff test on thin device and then reboot my machine. > 2. Rebuild our device stack and exec "vgchang -ay". > The thin-pool can not be established(details_root become a bitmap node > and metadata's bitmap_root become a btree_node). As you simplify your setup does the problem go away? eg, turn off write-behind, use just the nvme dev etc. The only effect of your change is to call flush twice rather than once. - Joe -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
