Can you attach output of `nvme get-feature -f 0x0c -H /dev/nvme0` with kernel in comment #13?
Also `sudo lspci -vvv`. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1737934 Title: Samsung SM961 NVMe SSD randomly unmounts/loses connection/unavailable To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1737934/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs