Created attachment 328410 [details]
I was checking a new F10 system for disk writes on an otherwise idle system, and it seems that each time cron wakes up, it generates audit messages, which causes a write to /var/log/audit/audit.log, which keeps my disks spun up even when I'm not doing anything. :)
I don't know if the audit is necessary... if not, it might be nice to avoid this.
For most users these are totally useless, I couldn't care less on my machines.
maybe it could be done with some sort of user,never rule
but only being limited to uid, auid, gid, and pid in those rule types seems overly restrictive and couldn't be used to supress these....
Sure seems reasonable to me to come up with some way to turn these off...
I think you can set some buffering options for the audit daemon which won't write to the disk all the time. Try setting flush = none in auditd.conf.
I'm not sure that'll help; if auditd is writing to the log, pdflush will come along & flush it out soon even if auditd isn't syncing (I guess w/something like laptop mode, this could help, though).
But crond doesn't write to audit on each wakeup just on each job execution. So if you have jobs scheduled only once an hour it will write to the audit only hourly. The question is whether the system jobs (scheduled by root in /etc/crontab and /etc/cron.d/... files) really have to be audited or not.
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