[Risolto] kdump.service - Failed to start Crash recovery kernel arming

Salve a tutti,
nel tentativo di migliorare il tempo di boot del mio sistema:

[code]uname -r
3.15.10-200.fc20.x86_64

Startup finished in 900ms (kernel) + 2.860s (initrd) + 1min 11.703s (userspace) = 1min 15.464s
[/code]

mi sono imbattuto in questo errore che avviene in fase di avvio.

systemctl --failed 
UNIT          LOAD   ACTIVE SUB    DESCRIPTION
kdump.service loaded failed failed Crash recovery kernel arming

LOAD   = Reflects whether the unit definition was properly loaded.
ACTIVE = The high-level unit activation state, i.e. generalization of SUB.
SUB    = The low-level unit activation state, values depend on unit type.

1 loaded units listed. Pass --all to see loaded but inactive units, too.
To show all installed unit files use 'systemctl list-unit-files'.

Ho provato a far partire il servizio da terminale, ma il tentativo è fallito:

sudo service kdump start Redirecting to /bin/systemctl start kdump.service Job for kdump.service failed. See 'systemctl status kdump.service' and 'journalctl -xn' for details.
Questo è l’output del comando journalctl -xn:

[code]-- Logs begin at sab 2014-02-15 02:20:32 CET, end at gio 2014-08-21 20:44:17 CEST. –
ago 21 20:44:11 osiris systemd[1]: kdump.service: main process exited, code=exited, status=1/FAILURE
ago 21 20:44:11 osiris systemd[1]: Failed to start Crash recovery kernel arming.
– Subject: Unit kdump.service has failed
– Defined-By: systemd
– Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel

– Unit kdump.service has failed.

– The result is failed.
ago 21 20:44:11 osiris systemd[1]: Unit kdump.service entered failed state.
ago 21 20:44:16 osiris sudo[5831]: tank : TTY=pts/0 ; PWD=/home/tank ; USER=root ; COMMAND=/sbin/service kdump start
ago 21 20:44:16 osiris systemd[1]: Starting Crash recovery kernel arming…
– Subject: Unit kdump.service has begun with start-up
– Defined-By: systemd
– Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel

– Unit kdump.service has begun starting up.
ago 21 20:44:17 osiris kdumpctl[5844]: No memory reserved for crash kernel.
ago 21 20:44:17 osiris kdumpctl[5844]: Starting kdump: [FAILED]
ago 21 20:44:17 osiris systemd[1]: kdump.service: main process exited, code=exited, status=1/FAILURE
ago 21 20:44:17 osiris systemd[1]: Failed to start Crash recovery kernel arming.
– Subject: Unit kdump.service has failed
– Defined-By: systemd
– Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel

– Unit kdump.service has failed.

– The result is failed.
ago 21 20:44:17 osiris systemd[1]: Unit kdump.service entered failed state.
[/code]

Ho già cercato nel forum, trovando solo questa discussione
(http://forum.fedoraonline.it/viewtopic.php?id=21585)
che però non mi è stata di aiuto.

Qualcuno sa come posso risolvere? Grazie tanto

Non vorrei dire una cavolata, ma sui sistemi con poca RAM non viene riservata memoria per questo servizio (che infatti non riesce ad avviarsi). Puoi disabilitarlo tranquillamente.

Grazie mille. Per curiosità, qual è il minimo quantitativo di RAM con cui riesce ad avviarsi?

Puoi vedere la configurazione attuale (e modificarla) installando https://apps.fedoraproject.org/packages/system-config-kdump.