On Sat, 22 Aug 2026, 17:21 Sven Geuer, <[email protected]> wrote:

> Hi Richard,
>
> On Sat, 22 Aug 2026 12:40:52 +0100 Richard Lewis <
> [email protected]> wrote:
> > On Thu, 20 Aug 2026 at 19:25, Paul Gevers <[email protected]> wrote:
> >
> > > I looked at the results of the autopkgtest of your package. I noticed
> > > that it regularly fails, at least on s390x. I triggered 5 runs and 2
> > > failed.
> > [...]
> >
> > I think what is happening is that a running (and unrelated) sshd is
> > sometimes visible from the testbed and sometimes not (which influences
> > the output). The autopkgtest wrongly assumed it would be consistent .
> > i assume different test runners have different settings and that's why
> > it looks flaky
>
> Looking at https://ci.debian.net/packages/c/chkrootkit/testing/s390x/
> it seems the issue is related to the incus-lxc backend, introduced
> after 2026-07-30 22:13:25 UTC. Earlier tests, run on lxc, passed.


thanks -- looking at
https://wiki.debian.org/ContinuousIntegration/LxcToIncus the lxc backend
incldues sshd (!) it's correctly missing from incus.

except isnt this one
https://ci.debian.net/data/autopkgtest/testing/s390x/c/chkrootkit/74450913/log.gz
is incus and passing. And there's not anything obviously arch-specific
about this -- we should be seeing all the other arch's being equally flaky,
and they dont seem to be.

(if anyone can  reproduce the failure, i would be curious to see what

bash -xv chkrootkit sshd

ps ax | grep sshd

return on a s390 system where it fails)


(But looking further: I dont actually see how the message seen on s390
could ever be produced in a functioning system --- it would need "ps ax
sshd | grep -E sshd" to _fail_, which is never going to happen: the grep
will match its own process in the output of ps  (which is a bug in
chkrootkit - but this is offset by a second bug as the test is backwards...
luckily this only affects systems with a rootkit in sshd..... and there's a
3rd issue in that 'chkrootkit -q sshd' never reports anything ). so
something else is perhaps broken/flaky in s390, but i suspect fixing the
issues in chkrootkit and its tests will probably resolve the failure)

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