Hello Peter,
Thank you for the background!
On 2/5/2025 3:25 PM, Peter Zijlstra wrote:
On Wed, Feb 05, 2025 at 03:18:24PM +0530, K Prateek Nayak wrote:
Have there been any reports on an x86 system / VM where
topology_span_sane() was tripped?
At the very least Intel SNC 'feature' tripped it at some point. They
figured it made sense to have the LLC span two nodes.
But I think there were some really dodgy VMs too.
But yeah, its not been often. But basically dodgy BIOS/VM data can mess
up things badly enough for it to trip.
Has it ever happened without tripping the topology_sane() check first
on the x86 side?
--
Thanks and Regards,
Prateek
