Micahel, has it been fixed in 24.04, our parnter reported me same call trace but it seems fix have been applied.
ubuntu@vm-noble1:~/noble$ git log | grep -A20 5d515ee40cb57ea5331998f27df7946a69f14dc3 commit 5d515ee40cb57ea5331998f27df7946a69f14dc3 Author: Kan Liang <kan.li...@linux.intel.com> Date: Thu Jan 12 12:01:05 2023 -0800 perf/x86/uncore: Don't WARN_ON_ONCE() for a broken discovery table The kernel warning message is triggered, when SPR MCC is used. [ 17.945331] ------------[ cut here ]------------ [ 17.946305] WARNING: CPU: 65 PID: 1 at arch/x86/events/intel/uncore_discovery.c:184 intel_uncore_has_discovery_tables+0x4c0/0x65c [ 17.946305] Modules linked in: [ 17.946305] CPU: 65 PID: 1 Comm: swapper/0 Not tainted 5.4.17-2136.313.1-X10-2c+ #4 It's caused by the broken discovery table of UPI. The discovery tables are from hardware. Except for dropping the broken information, there is nothing Linux can do. Using WARN_ON_ONCE() is overkilled. ubuntu@vm-noble1:~/noble$ -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-hwe-5.15 in Ubuntu. https://bugs.launchpad.net/bugs/2008037 Title: kernel warning of uncore_discovery.c:184 uncore_insert_box_info+0x134/0x350 Status in linux-hwe-5.15 package in Ubuntu: New Bug description: Kernel taitned 512 ude to warning of below: #grep taint /var/log/syslog -b2 235407-Feb 20 15:27:14 xfusion kernel: [ 3.779483] WARNING: CPU: 64 PID: 1 at arch/x86/events/intel/uncore_discovery.c:184 uncore_insert_box_info+0x134/0x350 235561-Feb 20 15:27:14 xfusion kernel: [ 3.779495] Modules linked in: 235627:Feb 20 15:27:14 xfusion kernel: [ 3.779499] CPU: 64 PID: 1 Comm: swapper/0 Not tainted 5.15.0-60-generic #66-Ubuntu 235746-Feb 20 15:27:14 xfusion kernel: [ 3.779505] Hardware name: XFUSION 2288 V7/BC15MBSC, BIOS 2.00.20.Btg 02/08/2023 235862-Feb 20 15:27:14 xfusion kernel: [ 3.779509] RIP: 0010:uncore_insert_box_info+0x134/0x350 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-hwe-5.15/+bug/2008037/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp