[5275] in testers
Re: What do I need to do to enable disconnected ops?
daemon@ATHENA.MIT.EDU (Bill Cattey)
Wed Jan 8 18:02:15 2003
From: Bill Cattey <wdc@MIT.EDU>
To: Derek Atkins <warlord@mit.edu>
Cc: testers@mit.edu
In-Reply-To: <sjm65sz9s0j.fsf@kikki.mit.edu>
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Date: 08 Jan 2003 18:02:13 -0500
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Interestingly, if AFS quickly timed out today I would have been screwed.
My IBM orinoco card flaked out, but I was able to crowbar it with clever
suspend/resume and init.d/network restart frobbing. Since I completed
that before AFS timed out, the Athena update did not blow out a second
time. The first time, it stranded me with no AFS because it installed
the new AFS but not the new kernel.
I've asked ghudson to add "copy update local" back to his work queue.
Perhaps when both fast AFS timeout and copy update local are present,
the world will be happier.
-wdc
On Wed, 2003-01-08 at 17:49, Derek Atkins wrote:
> Bill Cattey <wdc@MIT.EDU> writes:
>
> > Mitch corrected (and will soon submit a patch) that got past the first
> > problem. Apparently it also doesn't correctly neteventd.
>
> neteventd is supposed to be started by the user. There is currently
> no hook to actually run that.
>
> > Interestingly, the suspend/resume STILL does not work right. (Perhaps
> > it's due to the Dell.) I still have to by hand stop and start the
> > network. (Good thing I enabled the VT's, because trying to SU to start
>
> There is a program I was playing with called miid that will watch the
> (physical) network and start/stop the network when it sees the link
> arrive/go-away. Unfortunately on my particular laptop running miid
> causes the USB controller to go into a weird state, but it still might
> be an interesting thing to include if we're interested.
>
> I do not know of an miid equivalent for wireless. It might be useful
> to write a gnome applet that lets you see the current wireless config
> and then turn the wireless device on/off. Unfortunately this would
> also depend on the particular wireless driver being used.
>
> > the network hung looking for my home dir, cuz I was still in AFS land.
> > But that's not a fair criticism, since our discon model is to make
> > people run out of a local home dir, not AFS.)
>
> I sent a patch to the openafs guys that should cause AFS to timeout
> quickly in the event of no-network -- so that should at least cause
> SOME of these hangs to mostly go away. My patch was just committed
> to the OpenAFS HEAD last night.
>
> In my experiments with running disconnected, AFS was the #1 delay, and
> DNS/Hesiod lookups were #2.
>
> > -wdc
>
> -derek
> --
> Derek Atkins, SB '93 MIT EE, SM '95 MIT Media Laboratory
> Member, MIT Student Information Processing Board (SIPB)
> URL: http://web.mit.edu/warlord/ PP-ASEL-IA N1NWH
> warlord@MIT.EDU PGP key available
