[Bug 2026878] Re: s390x autopkgtest hangs

[Mateus Rodrigues de Morais]

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.

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https://bugs.launchpad.net/bugs/2026878

Title:
  s390x autopkgtest hangs

Status in nvme-stas package in Ubuntu:
  In Progress

Bug description:
  The s390x autopkgtest hangs [1]. The issue happens when executing the
  test test_get_interface [2] and the execution freezes on
  sock.recv(8192) in line 82 [3] until the test times out.

  [1] https://autopkgtest.ubuntu.com/results/autopkgtest-mantic/mantic/s390x/n/nvme-stas/20230711_031309_d317c@/log.gz
  [2] https://salsa.debian.org/debian/nvme-stas/-/blob/debian/sid/test/test-iputil.py#L31
  [3] https://salsa.debian.org/debian/nvme-stas/-/blob/debian/sid/staslib/iputil.py#L82

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