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SubjectRe: regression caused by: genirq: do not leave interupts enabled on free_irq
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On Fri, 2008-04-11 at 00:17 -0700, Yinghai Lu wrote:
> On Fri, Apr 11, 2008 at 12:14 AM, Yinghai Lu <yhlu.kernel@gmail.com> wrote:
> > On Fri, Apr 11, 2008 at 12:01 AM, Thomas Gleixner <tglx@linutronix.de> wrote:
> > > On Thu, 10 Apr 2008, Yinghai Lu wrote:
> > > > last week found:
> > > > after latest kernel kexec RHEL 5.1 or other stack kernel, the nvidia
> > > > forcedeth doesn't work anymore.
> > > >
> > > > I stared at forcedeth.c two days. and revert every patches about that
> > > > doesn't help.
> > >
> > > So forcedeth does not come up again, when you kexec from linus.git
> > > into an older distro kernel. Or is it the other way round ?
> > RHEL 5.1 kexec RHEL 5.1 : works
> > RHEL 5.1 kexec linus kernel: works
> > linus (after -rc2) kexec linus tree: works:
> > linus (after -rc2) kexec RHEL 5.1 : forcedeth will not come up
> > linus ( before -rc2 include rc2) kexec RHEL 5.1 works
> >
> the forcedeth can not get IP address...

Sounds like you are not getting any interrupts when you receive a
packet. (i.e. The interrupt line is staying disabled).

Is MSI an option here? I'm wondering if we disable the MSI and
something is not enabling it.

Eric




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