I've seen this bug too - I was also doing a reshape of a RAID5 array (but without changing chunk size - just adding a new drive).
I'm also seeing this intermittently only. One thing that might be relevant is that I'm reshaping several arrays in succession through a script (doing them in series, but with no waiting between reshapes). I've attached my dmesg output - similar error and stack to the above. Let me know if there are any other diags which would help here, I can hopefully repro this without too much trouble. ** Attachment added: "Sample dmesg output showing a repro of the bug" https://bugs.launchpad.net/ubuntu/+source/mdadm/+bug/1001019/+attachment/3579754/+files/dmesg.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1001019 Title: Mdadm crash on raid5 reshape To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mdadm/+bug/1001019/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
