Comment 28 for bug 1579580

I was checking for my own log messages I was writing and found this:

$ journalctl -b | grep eyesome | grep ureadahead
Oct 07 11:15:25 alien ureadahead[289]: ureadahead:acpi-lid-event-eyesome: Ignored relative path

I found this bug report and ran the recommended check:

$ journalctl -b | grep ureadahead | grep relative | wc -l
6474

As I have multi-boot logging enabled I did some percentage tests:

$ time journalctl | grep ureadahead | grep relative | wc -l
14875

real 0m8.072s
user 0m7.991s
sys 0m3.153s

$ journalctl | wc -l
907683
$ journalctl -b | wc -l
10504

For all boots ureadahead spam is 14875/907683=1.63% of all lines
For current boot ureadahead spam is 6674/10504=63.53% of all lines

I went back through all boot logs:

$ for i in $(seq 1 145); do journalctl -b-$i | grep ureadahead | grep relative | wc -l ; done

Booting 135 times ago also had ureadahead spam:

$ journalctl -b-135 | grep ureadahead | grep relative | wc -l
3751
$ journalctl -b-135 | head
-- Logs begin at Sat 2018-08-04 14:57:01 MDT, end at Sun 2018-10-07 11:31:03 MDT. --
Aug 06 10:35:39 alien systemd-journald[299]: Runtime journal (/run/log/journal/) is 8.0M, max 78.4M, 70.4M free.
Aug 06 10:35:39 alien kernel: microcode: microcode updated early to revision 0xc2, date = 2017-11-16
Aug 06 10:35:39 alien kernel: random: get_random_bytes called from start_kernel+0x42/0x50d with crng_init=0
Aug 06 10:35:39 alien kernel: Linux version 4.13.0-36-generic (buildd@lgw01-amd64-033) (gcc version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.9)) #40~16.04.1-Ubuntu SMP Fri Feb 16 23:25:58 UTC 2018 (Ubuntu 4.13.0-36.40~16.04.1-generic 4.13.13)
Aug 06 10:35:39 alien kernel: Command line: BOOT_IMAGE=/boot/vmlinuz-4.13.0-36-generic root=UUID=b40b3925-70ef-447f-923e-1b05467c00e7 ro noplymouth fastboot kaslr acpiphp.disable=1 vt.handoff=7 i915.enable_guc_loading=1 i915.enable_guc_submission=1
Aug 06 10:35:39 alien kernel: KERNEL supported cpus:
Aug 06 10:35:39 alien kernel: Intel GenuineIntel
Aug 06 10:35:39 alien kernel: AMD AuthenticAMD
Aug 06 10:35:39 alien kernel: Centaur CentaurHauls

If someone wants more journalctl details I'd be happy to provide.