On Thu, Aug 20, 2020 at 11:21:24AM -0700, Evan Green wrote:
> > >
> > > I'm slightly unclear about whether interrupts are disabled at the core
> > > by this point or not. I followed native_cpu_disable() up to
> > > __cpu_disable(), up to take_cpu_down(). This is passed into a call to
> > >
On Mon, Aug 17, 2020 at 11:33 AM Raj, Ashok wrote:
>
> Hi Evan
>
> Some details below,
>
> On Mon, Aug 17, 2020 at 11:12:17AM -0700, Evan Green wrote:
> > Hi Ashok,
> > Thank you, Srikanth, and Sukumar for some very impressive debugging here.
> >
> > On Fri, Aug 14, 2020 at 2:38 PM Ashok Raj
On 15.8.2020 0.38, Ashok Raj wrote:
> When offlining CPU's, fixup_irqs() migrates all interrupts away from the
> outgoing CPU to an online CPU. Its always possible the device sent an
> interrupt to the previous CPU destination. Pending interrupt bit in IRR in
> lapic identifies such interrupts.
Hi Evan
Some details below,
On Mon, Aug 17, 2020 at 11:12:17AM -0700, Evan Green wrote:
> Hi Ashok,
> Thank you, Srikanth, and Sukumar for some very impressive debugging here.
>
> On Fri, Aug 14, 2020 at 2:38 PM Ashok Raj wrote:
> >
> > When offlining CPU's, fixup_irqs() migrates all
Hi Ashok,
Thank you, Srikanth, and Sukumar for some very impressive debugging here.
On Fri, Aug 14, 2020 at 2:38 PM Ashok Raj wrote:
>
> When offlining CPU's, fixup_irqs() migrates all interrupts away from the
> outgoing CPU to an online CPU. Its always possible the device sent an
> interrupt to
Hi Randy,
On Fri, Aug 14, 2020 at 04:25:32PM -0700, Randy Dunlap wrote:
> On 8/14/20 2:38 PM, Ashok Raj wrote:
> > When offlining CPU's, fixup_irqs() migrates all interrupts away from the
>
> CPUs,
Thanks for catching these. I'll fix all these suggested changes in my next rev
Hi Randy
For some unknown reason my previous response said its taiting to be
delivered.
On Fri, Aug 14, 2020 at 04:25:32PM -0700, Randy Dunlap wrote:
> On 8/14/20 2:38 PM, Ashok Raj wrote:
> > When offlining CPU's, fixup_irqs() migrates all interrupts away from the
>
> CPUs,
On 8/14/20 2:38 PM, Ashok Raj wrote:
> When offlining CPU's, fixup_irqs() migrates all interrupts away from the
CPUs,
> outgoing CPU to an online CPU. Its always possible the device sent an
It's
> interrupt to the previous CPU destination.
When offlining CPU's, fixup_irqs() migrates all interrupts away from the
outgoing CPU to an online CPU. Its always possible the device sent an
interrupt to the previous CPU destination. Pending interrupt bit in IRR in
lapic identifies such interrupts. apic_soft_disable() will not capture any
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