Can see the difference in the dmesg output 16.04: Command line: BOOT_IMAGE=/boot/vmlinuz-4.4.0-1049-aws root=LABEL=cloudimg-rootfs ro console=tty1 console=ttyS0 nvme.io_timeout=4294967295
18.04: Command line: BOOT_IMAGE=/boot/vmlinuz-4.15.0-1001-aws root=LABEL=cloudimg-rootfs ro console=tty1 console=ttyS0 nvme_core.io_timeout=255 ** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1758466 Title: bionic: default io_timeout for nvme is 255 on AWS To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1758466/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs