[systemd-bugs] [Bug 76935] New: Do not parse "debug" command line parameter

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=76935

          Priority: medium
            Bug ID: 76935
          Assignee: systemd-bugs at lists.freedesktop.org
           Summary: Do not parse "debug" command line parameter
        QA Contact: systemd-bugs at lists.freedesktop.org
          Severity: normal
    Classification: Unclassified
                OS: All
          Reporter: bp at alien8.de
          Hardware: Other
            Status: NEW
           Version: unspecified
         Component: general
           Product: systemd

Supplying "debug" on the kernel command line gets parsed by systemd. If
a random assertion in it fires, something like this, for example:

[  150.308000] systemd-journald[1559]: Assertion
'dual_timestamp_is_set(&e->timestamp)' failed at
src/libsystemd/sd-event/sd-event.c:2191, function sd_event_get_now_monotonic().
Ignoring.
[  150.308000] systemd-journald[1559]: Assertion
'dual_timestamp_is_set(&e->timestamp)' failed at
src/libsystemd/sd-event/sd-event.c:2191, function sd_event_get_now_monotonic().
Ignoring.

it floods dmesg and I cannot log into the machine anymore. I have to
reboot and remove "debug" from the command line so that the machine can
boot. BUT(!), I want to see kernel debug messages so I have to be able
to supply "debug" *without* systemd interfering.

What it should do, instead, is *not* parse "debug" but something else
with a namespace, i.e. "systemd.debug" or whatever as "debug" is a
kernel cmdline parameter and not aimed for systemd.

And while we're at it, we'd need a configurable option to tell systemd
*not* to log to dmesg for when one wants to see only output from the
kernel in the kernel ring buffer, i.e. something like "systemd.nodmesg"
or so.

Thanks.

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