I have found what I think is a bug in Tiger. I have .Mac and use Fast
User Switching, and keep my account, an admin account, logged in in
the background. The one normally in the foreground is a non-admin
account - I'm not sure if this is a factor. In any case, in my
background account I have my keychain set to lock after a period of
inactivity and I had .Mac syncing set to automatic (I mean syncing of
bookmarks, keychains, etc.) Sometimes when I switch to my account I'm
presented with a keychain password dialog associated with this
syncing, though curiously after entering the password a sync doesn't
actually start. Anyway, other times I'll be in another account,
usually after waking the system from sleep, but not always, and I am
not able to launch any other applications. The icons bounce in the
dock for a while and then stop with the application never launching.
Further I can't switch users to get to my admin account, and can't
even do an "su username" in the Terminal - it requests the password
and I enter it, but then gets no further. Any currently running apps
continue to function at least in part. I can't even log out or do a
clean reboot. It never finishes logging out. The only recourse at
this point is a forced reboot.
This happened numerous times so after the last such forced reboot I
launched Activity Monitor and the Terminal and left them running so
I'd be able to investigate the next time it happened. It did, and
looking at running processes in Activity Monitor and via the terminal
I saw that the most active process was "SecurityAgent" which was
taking up 20 to 30% of the processor (actually dual 533 MHz G4s).
Searching on "Security Agent" at Apple's developer connection shows
that SecurityAgent handles presenting keychain password entry dialogs
and related GUI. So presumably the keychain has locked and now .Mac
wants to sync and it is requesting the password and for some reason
this SecurityAgent process then runs amuck, swamping the system.
_________________________________________________________________
Stephen Jonke [EMAIL PROTECTED]
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