I asked the customer to test 4.15.0-114-generic on Xenial HWE from -proposed on their HP DL360 Gen10 machines with the Intel Xeon Gold 5120 CPU. The machine has Sub-NUMA Clustering enabled and it is active.
The machine boots successfully, and there are no call traces or kernel oops present: # uname -rv 4.15.0-114-generic #115~16.04.1-Ubuntu SMP Wed Aug 12 09:20:32 UTC 2020 [Tue Aug 25 16:42:20 2020] x86: Booting SMP configuration: [Tue Aug 25 16:42:20 2020] .... node #0, CPUs: #1 #2 #3 #4 #5 #6 [Tue Aug 25 16:42:20 2020] .... node #1, CPUs: #7 #8 #9 #10 #11 #12 #13 [Tue Aug 25 16:42:20 2020] .... node #0, CPUs: #14 [Tue Aug 25 16:42:20 2020] MDS CPU bug present and SMT on, data leak possible. See https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/mds.html for more details. [Tue Aug 25 16:42:20 2020] TAA CPU bug present and SMT on, data leak possible. See https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/tsx_async_abort.html for more details. [Tue Aug 25 16:42:20 2020] #15 #16 #17 #18 #19 #20 [Tue Aug 25 16:42:20 2020] .... node #1, CPUs: #21 #22 #23 #24 #25 #26 #27 [Tue Aug 25 16:42:20 2020] smp: Brought up 2 nodes, 28 CPUs [Tue Aug 25 16:42:20 2020] smpboot: Max logical packages: 1 [Tue Aug 25 16:42:20 2020] smpboot: Total of 28 processors activated (123200.00 BogoMIPS) This issue is fixed and I am happy to mark this bug verified. ** Tags removed: verification-needed-bionic ** Tags added: verification-done-bionic -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1882478 Title: smpboot: don't call topology_sane() when Sub-NUMA-Clustering is enabled To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1882478/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
