Hi Long Li, A kernel bug report was opened against Ubuntu [0]. After a kernel bisect, it was found that reverting the following commit resolved this bug: commit 40630f462824ee24bc00d692865c86c3828094e0 Author: Long Li <longli@xxxxxxxxxxxxx> Date: Wed Dec 14 18:46:03 2016 -0800 scsi: storvsc: properly set residual data length on errors The regression was introduced in mainline as of v4.11-rc1. It was also cc'd to stable and has landed in v3.12.y, v4.4.y, v4.9.y and v4.10.y. This regression seems pretty severe since it's preventing virtual machines from booting. It's affecting a couple of users so far. I was hoping to get your feedback, since you are the patch author. Do you think gathering any additional data will help diagnose this issue, or would it be best to submit a revert request? Thanks, Joe [0] http://pad.lv/1674635