rawhide LiveOS boot, journalctl is missing many early messages

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Anybody else able to reproduce this?
https://bugzilla.redhat.com/show_bug.cgi?id=1715699

Basically you just boot a Rawhide LiveOS image in a VM with
systemd.log_level=debug and then once booted see what you get for

# journalctl -b -o short-monotonic

It should start with 0 seconds, with the first line of what you see in
dmesg. For me it's missing everything before 20 seconds. If I don't
use the debug switch, it doesn't happen, so it's like the debug option
is flooding the journal and it just bails.

OOooh I have a possible suspect!

[liveuser@localhost ~]$ losetup
NAME       SIZELIMIT OFFSET AUTOCLEAR RO BACK-FILE
          DIO LOG-SEC
/dev/loop1         0      0         0  1 /LiveOS/rootfs.img
            0     512
/dev/loop2         0      0         0  0 /overlay (deleted)
            0     512
/dev/loop0         0      0         0  1
/run/initramfs/live/LiveOS/squashfs.img   0     512
[liveuser@localhost ~]$

What is this loop2 /overlay that's been deleted? I wonder if it's
possible the journal got flushed there at first, and then it was
deleted?

I find it kinda hard to believe I've got more than 16MiB of journal
messages just by booting the system, and there are two system journals
in /var/log/journal/$MACHINEID/ but that's apparently not everything.






-- 
Chris Murphy
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