This issue was caused by a hard-coded byteorder='little' on a big-endian architecture (s390x), which resulted in garbage messages being sent to the Netlink socket. As these are ignored, nothing was then being received on recv(), causing the subsequent hang and, ultimately, the autopkgtest timeout.
This issue was caused by a hard-coded byteorder='little' on a big-endian architecture (s390x), which resulted in garbage messages being sent to the Netlink socket. As these are ignored, nothing was then being received on recv(), causing the subsequent hang and, ultimately, the autopkgtest timeout.
A fix has been proposed at https:/ /code.launchpad .net/~mateus- morais/ ubuntu/ +source/ nvme-stas/ +git/nvme- stas/+merge/ 450606.