$ grep 0 /sys/devices/system/memory/memory*/online /sys/devices/system/memory/memory504/online:0
$ grep memory /lib/udev/rules.d/* /etc/udev/rules.d/* /lib/udev/rules.d/40-vm-hotadd.rules:# On Hyper-V and Xen Virtual Machines we want to add memory and cpus as soon as they appear /lib/udev/rules.d/40-vm-hotadd.rules:#SUBSYSTEM=="memory", ACTION=="add", DEVPATH=="/devices/system/memory/memory[0-9]*", TEST=="state", ATTR{state}="online" I ran update-initramfs and rebooted again, but was still able to reproduce the error with dd -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1668129 Title: Amazon I3 Instance Buffer I/O error on dev nvme0n1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1668129/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs