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Bug#1014488: scapy: flaky autopkgtest: No such file or directory: 'isotpsend'



Source:  scapy
Version: 2.4.4-4
Severity: serious
X-Debbugs-CC: debian-ci@lists.debian.org
User: debian-ci@lists.debian.org
Usertags: flaky

Dear maintainer(s),

I looked at the results of the autopkgtest of you package on arm64 because it was showing up as a regression for the upload of openssl. I noticed that the test regularly fails and I saw failures on other architectures too, even in stable.

Because the unstable-to-testing migration software now blocks on
regressions in testing, flaky tests, i.e. tests that flip between
passing and failing without changes to the list of installed packages,
are causing people unrelated to your package to spend time on these
tests.

Don't hesitate to reach out if you need help and some more information
from our infrastructure.

Paul

https://ci.debian.net/packages/s/scapy/

https://ci.debian.net/data/autopkgtest/testing/amd64/s/scapy/23043408/log.gz

###(006)=[failed] Check if can-isotp and can-utils are installed on this system

>>> p1 = subprocess.Popen(['lsmod'], stdout = subprocess.PIPE)
>>> p2 = subprocess.Popen(['grep', '^can_isotp'], stdout = subprocess.PIPE, stdin=p1.stdout)
>>> p1.stdout.close()
>>> if p1.wait() == 0 and p2.wait() == 0 and b"can_isotp" in p2.stdout.read(): ... p = subprocess.Popen(["isotpsend", "-s1", "-d0", iface0], stdin = subprocess.PIPE)
...     p.communicate(b"01")
...     if p.returncode == 0:
...         ISOTP_KERNEL_MODULE_AVAILABLE = True
...
Traceback (most recent call last):
  File "<input>", line 3, in <module>
  File "/usr/lib/python3.10/subprocess.py", line 969, in __init__
    self._execute_child(args, executable, preexec_fn, close_fds,
  File "/usr/lib/python3.10/subprocess.py", line 1845, in _execute_child
    raise child_exception_type(errno_num, err_msg, err_filename)
FileNotFoundError: [Errno 2] No such file or directory: 'isotpsend'


sys:1: ResourceWarning: unclosed file <_io.BufferedReader name=9>

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