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Message-ID: <20091013090038.6ec27475@nehalam> Date: Tue, 13 Oct 2009 09:00:38 -0700 From: Stephen Hemminger <shemminger@...tta.com> To: Mike McCormack <mikem@...g3k.org> Cc: netdev@...r.kernel.org Subject: Re: [PATCH 2/3] sky2: Reading registers in reset causes a hang On Tue, 13 Oct 2009 07:36:45 +0900 Mike McCormack <mikem@...g3k.org> wrote: > 2009/10/13 Stephen Hemminger <shemminger@...ux-foundation.org> > > > > On Mon, 12 Oct 2009 23:06:37 +0900 > > Mike McCormack <mikem@...g3k.org> wrote: > > > > > When sky2 hardware is in reset, reading registers with ethtool -d > > > causes a hard system hang. eg. > > > > > > ifconfig eth1 down > > > ethtool -d eth1 > > > > > > Avoid reading FIFOs, descriptor and status unit, etc. after we've > > > bought the interface down, as these seem to cause the issue. > > > > > > Assume the same is true for the second port, as my port only has > > > one card. > > > > I don't see this on my cards. Let me investigate further before > > committing this. Also, the debugfs interface would also be screwed > > if the registers were unavailable. > > I forgot to include one other piece of information... I'm running a > ping -f at the sky2 interface on a remote machine. I'll check debugfs > tonight. > You are flooding a down interface?? -- -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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