Re: 2.6.24-rt1 IRQ routing anomaly

From: Steven Rostedt
Date: Thu Feb 21 2008 - 10:09:40 EST



On Thu, 21 Feb 2008, Mark Hounschell wrote:
> >
> > To prove this is the problem, boot with noapic in the kernel command line.
> > 1) the problem should disappear.
> > 2) (I'm betting) you see that the eth and EMU10K1 share the same
> > interrupt line.
> >
>
> Yep, you were right. They do share the same IRQ and the problem does go away.
> Unfortunately I can't run this machine with noapic. I need irq affinity.
>

Thanks for verifying. OK, I'll see if I can get the workaround on i386. I
thought I saw a patch someplace where someone ported that workaround. I'm
still sorting out bugs in -rt2 (why it is still not out). I'll see if I
can find time to get the workaround to i386 for -rt2 as well.

-- Steve

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