Package: autopkgtest
Version: 5.15
Severity: normal
User: de...@kali.org
Usertags: origin-kali
Here's a log showing the issue:
```
autopkgtest [16:04:04]: host melpomene.kali.org; command line:
/usr/bin/autopkgtest --no-built-binaries '--setup-commands=echo
'"'"'pybtex-docutils kali-rolling/amd64'"'"' > /var/tmp/debci.pkg 2>&1 || true'
--apt-upgrade --user debci --apt-upgrade --add-apt-release=kali-dev
--pin-packages=kali-dev=src:pybtex-docutils
--output-dir
/srv/debci/tmp/tmp.ysWjkecMC1/autopkgtest-incoming/kali-rolling/amd64/p/pybtex-docutils/3509400
pybtex-docutils -- lxc --sudo --name ci-004-04188469
autopkgtest-kali-rolling-amd64
autopkgtest-virt-lxc [16:04:39]: ERROR: WARNING: Cannot kill timed out process
['sudo', 'lxc-attach', '--name', 'ci-004-04188469', 'runlevel']: [Errno 1]
Operation not permitted
Unexpected error:
Traceback (most recent call last):
File "/usr/share/autopkgtest/lib/VirtSubproc.py", line 739, in mainloop
command()
File "/usr/share/autopkgtest/lib/VirtSubproc.py", line 668, in command
r = f(c, ce)
File "/usr/share/autopkgtest/lib/VirtSubproc.py", line 258, in cmd_open
caller.hook_open()
File "/usr/bin/autopkgtest-virt-lxc", line 245, in hook_open
wait_booted(lxc_container_name)
File "/usr/bin/autopkgtest-virt-lxc", line 124, in wait_booted
stdout=subprocess.PIPE)
File "/usr/share/autopkgtest/lib/VirtSubproc.py", line 144, in execute_timeout
(out, err) = sp.communicate(instr)
File "/usr/lib/python3.7/subprocess.py", line 926, in communicate
stdout = self.stdout.read()
File "/usr/share/autopkgtest/lib/VirtSubproc.py", line 64, in alarm_handler
raise Timeout()
VirtSubproc.Timeout
autopkgtest [16:06:03]: ERROR: testbed failure: cannot send to testbed: [Errno
32] Broken pipe
```
virt-lxc uses `sudo lxc-attach --name ci-something runlevel`[0] to check
if the container is properly started and available (). In the case
above, this call timed out (this can happen when for instance the worker
is too loaded). This process however fails to get killed upon timing
out, with a "permission denied" error: `exec_timeout()` in
VirtSubProc.py simply tries to `sp.kill()`[1] it, but in this case the
`sp` subprocess was started with `sudo`, so attempting to kill it as the
user `debci` is guaranteed to fail.
More generally, `exec_timeout()` will fail to properly kill any
timed-out subprocess that was created through virt-lxc's
`sudoify()`.
I'm not sure what a proper patch would look like, as the debci user
can't simply be given sudo privileges to `kill` just about anything.
Cheers,
--
Seb
[0]
https://salsa.debian.org/ci-team/autopkgtest/-/blob/master/virt/autopkgtest-virt-lxc#L122
[1]
https://salsa.debian.org/ci-team/autopkgtest/-/blob/master/lib/VirtSubproc.py#L151
-- System Information:
Debian Release: bullseye/sid
APT prefers unstable
APT policy: (500, 'unstable'), (500, 'testing'), (500, 'stable'), (1,
'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 5.9.0-1-amd64 (SMP w/36 CPU threads)
Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE,
TAINT_UNSIGNED_MODULE
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
Versions of packages autopkgtest depends on:
ii apt-utils 2.1.7
ii libdpkg-perl 1.20.5
ii procps 2:3.3.16-5
ii python3 3.9.0-3
ii python3-debian 0.1.37
Versions of packages autopkgtest recommends:
ii autodep8 0.23
Versions of packages autopkgtest suggests:
ii lxc 1:4.0.2-1
pn lxd <none>
ii ovmf 2020.05-2
ii qemu-efi-aarch64 2020.05-2
ii qemu-efi-arm 2020.05-2
ii qemu-system 1:5.0-13
ii qemu-utils 1:5.2+dfsg-3
ii schroot 1.6.10-9+b1
ii vmdb2 0.16-2
-- no debconf information
