Ubuntu
systemd package

  1. Bug #1982462
  2. Comment #5

Comment 5 for bug 1982462

Revision history for this message
Alfonso Sanchez-Beato (alfonsosanchezbeato) wrote :

I have tested a modified systemd-pstore.service in UC20 (focal based) adding:

[Unit]
After=modprobe@efi_pstore.service <email address hidden> modprobe@chromeos_pstore.service <email address hidden> modprobe@pstore_zone.service modprobe@pstore_blk.service
Wants=modprobe@efi_pstore.service <email address hidden> modprobe@chromeos_pstore.service <email address hidden> modprobe@pstore_zone.service modprobe@pstore_blk.service

As a result I get failures in the services trying to load modules for pstore, for instance:

ubuntu@ubuntu:~$ sudo systemctl status <email address hidden>
● <email address hidden> - Load Kernel Module mtdpstore
     Loaded: loaded (/lib/systemd/system/modprobe@.service; static; vendor preset: enabled)
     Active: inactive (dead) since Thu 2022-08-04 15:59:31 UTC; 25s ago
       Docs: man:modprobe(8)
    Process: 400 ExecStart=/sbin/modprobe -abq mtdpstore (code=exited, status=1/FAILURE)
   Main PID: 400 (code=exited, status=1/FAILURE)

Aug 04 15:59:31 ubuntu systemd[1]: <email address hidden>: Succeeded.
Aug 04 15:59:31 ubuntu systemd[1]: Finished Load Kernel Module mtdpstore.

Which is fine, but there is the potential of too many successive restart of these services, which would result in https://github.com/systemd/systemd/issues/23742. To prevent this, https://github.com/systemd/systemd/commit/9625350e5381a68c1179ae4581e7586c206663e1 should be included in the next systemd focal SRU.