eOn So, 03.07.22 19:29, Uwe Geuder (systemd-devel-ugeu...@snkmail.com) wrote:
> Hi! > > When I run the command given below on a current Fedora CoreOS system > (systemd 250 (v250.6-1.fc36)) I get a result I absolute cannot understand. > Can anybody help me with what is wrong there? > > $ systemd-run --user sh -c 'while true; do echo foo; df -h /var/log/journal/; > echo $?; sleep 3; done' > Running as unit: run-r9a155474889b4d40a1ac119823bdc2bf.service > $ journalctl --user -f -u run-r9a155474889b4d40a1ac119823bdc2bf > [ ... similar lines redacted ... ] > Jul 03 15:25:08 ip-172-31-8-116 sh[366900]: 0 > Jul 03 15:25:11 ip-172-31-8-116 sh[366900]: foo > Jul 03 15:25:11 ip-172-31-8-116 sh[366900]: 0 > Jul 03 15:25:14 ip-172-31-8-116 sh[366900]: foo > Jul 03 15:25:14 ip-172-31-8-116 sh[366900]: 0 > Jul 03 15:25:17 ip-172-31-8-116 sh[366900]: foo > Jul 03 15:25:17 ip-172-31-8-116 sh[366900]: 0 > Jul 03 15:25:20 ip-172-31-8-116 sh[366900]: foo > Jul 03 15:25:20 ip-172-31-8-116 sh[366941]: Filesystem Size Used Avail > Use% Mounted on > Jul 03 15:25:20 ip-172-31-8-116 sh[366941]: /dev/nvme0n1p4 9.5G 8.1G 1.5G > 86% /var > Jul 03 15:25:20 ip-172-31-8-116 sh[366900]: 0 > Jul 03 15:25:23 ip-172-31-8-116 sh[366900]: foo > Jul 03 15:25:23 ip-172-31-8-116 sh[366900]: 0 > Jul 03 15:25:26 ip-172-31-8-116 sh[366900]: foo > Jul 03 15:25:26 ip-172-31-8-116 sh[366900]: 0 > Jul 03 15:25:29 ip-172-31-8-116 sh[366900]: foo > Jul 03 15:25:29 ip-172-31-8-116 sh[366900]: 0 > [...] > > So the output from the df command appears in the journal pretty rarely, > appearingly at random intervals. When I run the same loop on the > command line the output occurs every time. > > The problem was originally noted in a somewhat loaded system. However, > above reproducer (including the 2 echo commands and a shorter sleep) > shows the same problem even on an idling machine. https://github.com/systemd/systemd/issues/2913 Lennart -- Lennart Poettering, Berlin
