Bug#1002229: libnet-traceroute-perl: FTBFS: dh_auto_test: error: make -j4 test TEST_VERBOSE=1 returned exit code 2

[gregor herrmann]

On Wed, 22 Dec 2021 21:02:37 +0100, Lucas Nussbaum wrote:

> > Do you have any idea how this can happen in your test environment or
> > any information for us, what is special about it?
> I tried it again and could reproduce it.

Thank your very much for taking the extra time to further investigate
this issue!
 
> I think that what happens is:
> 1/ the VM hostname is set to ip-10-84-232-230 (or ip-10-84-232-242 in the
> bug report)
> 2/ /etc/hosts is correctly configured to resolve that hostname:
> 127.0.1.1 ip-10-84-232-230.eu-central-1.compute.internal ip-10-84-232-230
> 3/ however, schroot does not copy /etc/hosts into the chroot. The
> content of /etc/hosts in the chroot does not include the line for 127.0.1.1.
> 4/ when the test suite runs traceroute on the machine's hostname,
> traceroute fails to resolve the hostname, and exits with exit code 2.

That makes totally sense.

> 5/ for some reason, the test harness thinks the test exited with code 255.

I guess that's becaucse the module code itself has
| die "No output from traceroute.  Exec failure?"
and the actual tests aren't even run as instantiating the module
already fails.
 
> libnet-traceroute-perl seems to be the only package failing to build due
> to this condition, so it might be worth fixing in the package, even if
> one could argue that it's a bug in the build environment. Maybe
> tracerouting to 127.0.0.1 would be enough?

Yeah, that might be viable option.

Thanks again,
gregor

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