Re: PREEMPT_RT with e1000

From: Daniel Walker
Date: Thu Sep 01 2005 - 10:07:50 EST


On Thu, 2005-09-01 at 07:43 -0700, Daniel Walker wrote:
> On Thu, 2005-09-01 at 09:10 +0200, Ingo Molnar wrote:
> > * Daniel Walker <dwalker@xxxxxxxxxx> wrote:
> >
> > > It looks like Gigabit Ethernet is still having some problems. This is
> > > with the e1000 driver. If I remove all the qdisc_restart changes it
> > > starts to work the warning below goes away, but it has
> > > smp_processor_id warnings.
> >
> > btw., what does "problems" mean, precisely - does it not work at all, or
> > does it produce the lockup under certain loads?
>
> It hangs when I un'tar a big archive over NFS, but otherwise it works
> slowly . The "possible softlockup" must mean it's doing some major
> looping in/around qdisc_restart() .

Another note, the possible softlockup warning is disconnected from the
actual lockup . I get several possible softlockup warnings then nothing,
then a hang with no warning.

Daniel

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