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To: Bruce M Simpson <bms@spc.org>
From: Ian FREISLICH <if@hetzner.co.za>
In-Reply-To: Message from Bruce M Simpson <bms@spc.org> 
	<20041013232318.GN718@empiric.icir.org> 
Date: Thu, 14 Oct 2004 14:46:18 +0200
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cc: Robert Huff <roberthuff@rcn.com>
cc: Robert Watson <rwatson@freebsd.org>
cc: current@freebsd.org
Subject: Re: network slowness/freez-up since update 10/11 
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Bruce M Simpson wrote:
> On Wed, Oct 13, 2004 at 04:27:22PM -0400, Robert Watson wrote:
> > There appears to bea problem with if_de cards and Giant-free operation.
> > I'm working with John Baldwin to try and diagnose it.  Could you try
> > putting debug.mpsafenet=0 in /boot/loader.conf and reboot to confirm that
> > this is what's going on?
> 
> The de(4) driver is a bit of a mess as regards locking.
> I had a look at this back in June/July but no longer have the hardware.
> It would probably be best to bring it under IFF_NEEDSGIANT.

I have a

de0: <Digital 21041 Ethernet> port 0xe800-0xe87f mem 0xea001000-0xea00107f irq 17 at device 9.0 on pci0
de0: [GIANT-LOCKED]
de0: DEC DE450-CA 21041 [10Mb/s] pass 1.1
de0: Ethernet address: 00:00:f8:30:dd:c2
de0: if_start running deferred for Giant

that is no longer in use.  If it will be of help, I'll mail it to
you (you'll need to give me your shipping address).

Ian

--
Ian Freislich