There is a solution posted elsewhere, here it is literally :
Quote:
Check for a file /tmp/errlog.save. AIX may have created one if your log became
invalid for some reason.
In any case, you can fix a 0 length log by stopping and restarting the errdemon
as follows.
/usr/lib/errstop # stop logging
rm /var/adm/ras/errlog # get rid of that log.
/usr/lib/errdemon # restart the daemon, thus creating a new error log.
HTH.
Porblem with errorlog