[systemd-bugs] Excessive journal file duplication upon hitting ctrl+alt+del

[Radu Potop]

I encountered a bug which excessively duplicates the journal file upon
hitting ctrl+alt+del.

I stumbled upon this because I put an entry in fstab to an unattached
volume and set 'default' as the mount option. After rebooting systemd
waits (for about a minute) for the drive to initialize. I didn't
realize this at that moment and hit ctrl+alt+del thinking that systemd
had flopped. The system did not reboot so i hit C+A+D again.

I believe than upon each C+A+D sequence, journald duplicated the
journal file, trying to make a backup of some sort.
This lead to quickly filling up /var/log/journal with journal files
that take up about 4GiB. I attached a file listing.


Radu
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-rw-r-----  1 root adm   4345856 Nov 15 00:31 system.journal
-rw-r-----  1 root adm  64339968 Nov 15 00:18 system at 0004ce7be8d70a4c-8dc46b9c460df07d.journal~
-rw-r-----  1 root adm  98410496 Oct  2 19:08 system at c5ce16b7d3dc45f898d580523149cade-000000000001ba4a-0004cb15ba57a03f.journal
-rw-r-----  1 root adm 122929152 Oct 24 15:18 system at c5ce16b7d3dc45f898d580523149cade-0000000000042f05-0004cccd16bb791d.journal
-rw-r-----  1 root adm 121671680 Oct 24 16:11 system at c5ce16b7d3dc45f898d580523149cade-000000000006d95b-0004cccdd3ebeb7d.journal
-rw-r-----  1 root adm 121688064 Oct 24 17:04 system at c5ce16b7d3dc45f898d580523149cade-00000000000983e1-0004ccce9128f606.journal
-rw-r-----  1 root adm 121679872 Oct 24 17:57 system at c5ce16b7d3dc45f898d580523149cade-00000000000c2e57-0004cccf4ea2bd59.journal
-rw-r-----  1 root adm 120844288 Nov 13 22:41 system at c5ce16b7d3dc45f898d580523149cade-00000000000c2e58-0004cccf4eb49360.journal
-rw-r-----  1 root adm 134217728 Nov 13 22:42 system at c5ce16b7d3dc45f898d580523149cade-00000000000ea582-0004ce6670003828.journal
-rw-r-----  1 root adm 134217728 Nov 13 22:43 system at c5ce16b7d3dc45f898d580523149cade-0000000000121e25-0004ce66736bc690.journal
-rw-r-----  1 root adm 134217728 Nov 13 22:44 system at c5ce16b7d3dc45f898d580523149cade-0000000000158f31-0004ce6677b1e7b3.journal
-rw-r-----  1 root adm 118534144 Nov 13 22:45 system at c5ce16b7d3dc45f898d580523149cade-000000000018fd45-0004ce667b7a3a24.journal
-rw-r-----  1 root adm 134217728 Nov 13 22:46 system at c5ce16b7d3dc45f898d580523149cade-00000000001c617a-0004ce667f523fcd.journal
-rw-r-----  1 root adm 134217728 Nov 13 22:47 system at c5ce16b7d3dc45f898d580523149cade-00000000001fce39-0004ce66831a9659.journal
-rw-r-----  1 root adm 109203456 Nov 13 22:48 system at c5ce16b7d3dc45f898d580523149cade-000000000023400b-0004ce668768ad20.journal
-rw-r-----  1 root adm 110268416 Nov 13 22:49 system at c5ce16b7d3dc45f898d580523149cade-0000000000262ea4-0004ce668bc044c0.journal
-rw-r-----  1 root adm 133963776 Nov 13 22:51 system at c5ce16b7d3dc45f898d580523149cade-0000000000292b24-0004ce668fc3ef4a.journal
-rw-r-----  1 root adm 117768192 Nov 13 22:52 system at c5ce16b7d3dc45f898d580523149cade-00000000002ca376-0004ce6694387ef3.journal
-rw-r-----  1 root adm 114130944 Nov 13 22:53 system at c5ce16b7d3dc45f898d580523149cade-00000000002ffbeb-0004ce66996fd1f0.journal
-rw-r-----  1 root adm 111128576 Nov 13 22:55 system at c5ce16b7d3dc45f898d580523149cade-0000000000332840-0004ce669e0c7faa.journal
-rw-r-----  1 root adm 110256128 Nov 13 22:56 system at c5ce16b7d3dc45f898d580523149cade-0000000000362eca-0004ce66a1c80c41.journal
-rw-r-----  1 root adm 113905664 Nov 13 22:57 system at c5ce16b7d3dc45f898d580523149cade-0000000000392a89-0004ce66a5c70c4a.journal
-rw-r-----  1 root adm 118788096 Nov 13 22:58 system at c5ce16b7d3dc45f898d580523149cade-00000000003c53ca-0004ce66a96df57c.journal
-rw-r-----  1 root adm 113053696 Nov 13 22:59 system at c5ce16b7d3dc45f898d580523149cade-00000000003fb8c7-0004ce66ae564ebd.journal
-rw-r-----  1 root adm 134217728 Nov 13 23:01 system at c5ce16b7d3dc45f898d580523149cade-000000000042d6b0-0004ce66b2c9a377.journal
-rw-r-----  1 root adm 134217728 Nov 13 23:02 system at c5ce16b7d3dc45f898d580523149cade-0000000000464697-0004ce66b778d5cb.journal
-rw-r-----  1 root adm 134217728 Nov 13 23:03 system at c5ce16b7d3dc45f898d580523149cade-000000000049b388-0004ce66bb473f6b.journal
-rw-r-----  1 root adm 115728384 Nov 13 23:04 system at c5ce16b7d3dc45f898d580523149cade-00000000004d27ff-0004ce66bf2cefec.journal
-rw-r-----  1 root adm 114991104 Nov 13 23:05 system at c5ce16b7d3dc45f898d580523149cade-0000000000506543-0004ce66c382beb5.journal
-rw-r-----  1 root adm 134217728 Nov 14 08:16 system at c5ce16b7d3dc45f898d580523149cade-0000000000539bb2-0004ce66c78fb6c6.journal
-rw-r-----  1 root adm 134217728 Nov 14 08:18 system at c5ce16b7d3dc45f898d580523149cade-0000000000571593-0004ce6e7afe227a.journal
-rw-r-----  1 root adm 134217728 Nov 14 08:19 system at c5ce16b7d3dc45f898d580523149cade-00000000005a97cc-0004ce6e7f37d996.journal
-rw-r-----  1 root adm 134217728 Nov 14 08:20 system at c5ce16b7d3dc45f898d580523149cade-00000000005e1412-0004ce6e8325d85a.journal
-rw-r-----  1 root adm 134217728 Nov 14 08:21 system at c5ce16b7d3dc45f898d580523149cade-00000000006194d8-0004ce6e8701a9b4.journal
-rw-r-----+ 1 root adm   3743744 Nov 15 00:12 user-1000.journal
-rw-r-----+ 1 root adm   3735552 Oct 24 18:28 user-1000 at 0004ccf0f687d4d9-4e0b2f36c45761ea.journal~
-rw-r-----+ 1 root adm   3735552 Nov 14 08:21 user-1000 at c5ce16b7d3dc45f898d580523149cade-0000000000000000-0000000000000000.journal
-rw-r-----+ 1 root adm   3756032 Oct  2 19:08 user-1000 at c5ce16b7d3dc45f898d580523149cade-0000000000007c0f-0004cb12eb5f050b.journal
-rw-r-----+ 1 root adm   3735552 Oct 24 17:57 user-1000 at c5ce16b7d3dc45f898d580523149cade-0000000000027a27-0000000000000000.journal
-rw-r-----+ 1 root adm   3862528 Oct 24 15:18 user-1000 at c5ce16b7d3dc45f898d580523149cade-0000000000027a27-0004cccc6052ac25.journal
-rw-r-----+ 1 root adm   3899392 Nov 13 22:41 user-1000 at c5ce16b7d3dc45f898d580523149cade-00000000000dcd9c-0004ccf0f68d9ab6.journal