Re: [PATCH v3 00/15] honor isolcpus configuration

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On Tue, Aug 06, 2024 at 09:09:50AM GMT, Stefan Hajnoczi wrote:
> On Tue, 6 Aug 2024 at 08:10, Daniel Wagner <dwagner@xxxxxxx> wrote:
> > The only stall I was able to trigger
> > reliable was with qemu's PCI emulation. It looks like when a CPU is
> > offlined, the PCI affinity is reprogrammed but qemu still routes IRQs to
> > an offline CPU instead to newly programmed destination CPU. All worked
> > fine on real hardware.
> 
> Hi Daniel,
> Please file a QEMU bug report here (or just reply to this emails with
> details on how to reproduce the issue and I'll file the issue on your
> behalf):
> https://gitlab.com/qemu-project/qemu/-/issues
> 
> We can also wait until your Linux patches have landed if that makes it
> easier to reproduce the bug.

Thanks for the offer. I tried simplify the setup and come up with
producer using qemu directly instead with libvirt. And now it works just
fine. I'll try to figure out what the magic argument...




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