On Thu, Jan 5, 2023 at 8:14 AM Laszlo Ersek <ler...@redhat.com> wrote: > > On 1/4/23 13:35, Michael S. Tsirkin wrote: > > On Wed, Jan 04, 2023 at 10:01:38AM +0100, Laszlo Ersek wrote: > >> The modern ACPI CPU hotplug interface was introduced in the following > >> series (aa1dd39ca307..679dd1a957df), released in v2.7.0: > >> > >> 1 abd49bc2ed2f docs: update ACPI CPU hotplug spec with new protocol > >> 2 16bcab97eb9f pc: piix4/ich9: add 'cpu-hotplug-legacy' property > >> 3 5e1b5d93887b acpi: cpuhp: add CPU devices AML with _STA method > >> 4 ac35f13ba8f8 pc: acpi: introduce AcpiDeviceIfClass.madt_cpu hook > >> 5 d2238cb6781d acpi: cpuhp: implement hot-add parts of CPU hotplug > >> interface > >> 6 8872c25a26cc acpi: cpuhp: implement hot-remove parts of CPU hotplug > >> interface > >> 7 76623d00ae57 acpi: cpuhp: add cpu._OST handling > >> 8 679dd1a957df pc: use new CPU hotplug interface since 2.7 machine type > >> ... > > The solution to the riddle
Hi, just to add to this nicely convoluted case an FYI to everyone involved back then, the fix seems to have caused a regression [1] in - as far as I've found - an edge case. [1]: https://gitlab.com/qemu-project/qemu/-/issues/1520 ... > Laszlo > > -- Christian Ehrhardt Senior Staff Engineer, Ubuntu Server Canonical Ltd
