[systemd-devel] [EXT] Re: Q: "systemd[1]: var-tmp-AP_0x6tWaHS.mount: Succeeded."

[Mantas Mikulėnas]

On Fri, Jan 28, 2022, 11:59 Ulrich Windl <Ulrich.Windl at rz.uni-regensburg.de>
wrote:

> >>> Mantas Mikulenas <grawity at gmail.com> schrieb am 28.01.2022 um 10:27 in
> Nachricht
> <CAPWNY8U8wQxPh2enZ-WTnaRjFoPUt8SpeFMUiqX8x+rAet9csg at mail.gmail.com>:
> > On Fri, Jan 28, 2022 at 10:50 AM Ulrich Windl <
> > Ulrich.Windl at rz.uni-regensburg.de> wrote:
> >
> >> Hi!
> >>
> >> When upgrading SLES15 to SP3, a newer version of systemd was installed
> >> (246.16+suse.191.g3850086c65).
> >> Since then I see new journal messages like these that I cannot associate
> >> with a unit:
> >>
> >> Jan 27 09:29:30 h16 systemd[1]: var-tmp-AP_0xC5KDJP.mount: Succeeded.
> >> Jan 27 09:29:30 h16 systemd[22591]: var-tmp-AP_0xC5KDJP.mount:
> Succeeded.
> >>
> >> Where do these messages originate from, and couldn't they be improved?
> Or
> >> is it some debug-leftover?
> >> I do not see corresponding names in /var/tmp.
> >>
> >
> > If I understand correctly, the messages indicate that the filesystem was
> > *unmounted*, and the same program which did mounting/unmounting
> immediately
> > cleaned up the mountpoint as well.
> >
> > (systemd reacts to external mounts as those also contribute to
> > dependencies.)
> >
> > If OpenSuSE has the kernel audit subsystem enabled, try using `auditctl`
> to
> > monitor a) what process executes mount-related syscalls, b) what process
> > creates directories under /var/tmp.
>
> Thanks,
>
> probably these messages are related to mounting a virtual CD, as nearby are
> these messages:
> Jan 27 09:29:29 h16 kernel: ISO 9660 Extensions: Microsoft Joliet Level 3
> Jan 27 09:29:29 h16 kernel: ISO 9660 Extensions: RRIP_1991A
> Jan 27 09:29:30 h16 systemd[1]: var-tmp-AP_0xC5KDJP.mount: Succeeded.
> Jan 27 09:29:30 h16 systemd[22591]: var-tmp-AP_0xC5KDJP.mount: Succeeded.
> Jan 27 09:29:30 h16 kernel: ISO 9660 Extensions: Microsoft Joliet Level 3
> Jan 27 09:29:30 h16 kernel: ISO 9660 Extensions: RRIP_1991A
> Jan 27 09:29:31 h16 systemd[22591]: var-tmp-AP_0x6tWaHS.mount: Succeeded.
> Jan 27 09:29:31 h16 systemd[1]: var-tmp-AP_0x6tWaHS.mount: Succeeded.
>
> Still I wonder what this is all about (systemd finding a CD, mounting it,
> just
> to find out that no-one needs it?)...
>

Why do you think systemd is finding and/or mounting it?

>
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