Ubuntu
linux package

  1. Bug #1976511
  2. Comment #7

Comment 7 for bug 1976511

Revision history for this message
Zachary Tahenakos (ztahenakos) wrote : Re: kernel taint ( warning ) caused by smpboot.c: on 5.4.0

The Intel Xeon Platinum 8380 is an IceLake chip (see https://www.intel.com/content/www/us/en/products/sku/212287/intel-xeon-platinum-8380-processor-60m-cache-2-30-ghz/specifications.html). The change referenced by Zhanglei only addresses chips that are Skylake-X.

There is a change in the upstream kernel that changes how this SNC detection works to now default it on except for COD (Cluster-on-Die, SNC is a newer implementation of this tech it seems):
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v5.19-rc1&id=2c88d45edbb89029c1190bb3b136d2602f057c98

The hwe-5.13 kernel has this change, but the 5.4 kernel does not.