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Description of problem:
Failed to hot-plug 448 cpus to rhel9.1.0 guest with q35 + OVMF
Version-Release number of selected component (if applicable):
host version:
kernel-5.14.0-160.el9.x86_64
qemu-kvm-7.0.0-12.el9.x86_64
edk2-ovmf-20220526git16779ede2d36-3.el9.noarch
guest: rhel9.1.0
How reproducible:
100%
Steps to Reproduce:
1.Boot guest with "cpus_hotplug.sh" script
# sh cpus_hotplug.sh ovmf
2.After the cpus_hotplug.sh script is complete, check cpu number and dmesg message in guest.
# lscpu
# dmesg
Actual results:
After step 2, guest get 224 vcpus, the following message is found in dmesg:
[ 2021.441073] APIC: NR_CPUS/possible_cpus limit of 224 reached. Processor 670/0x1f7 ignored.
[ 2021.442429] ACPI: Unable to map lapic to logical cpu number
[ 2021.443277] acpi ACPI0007:df: Enumeration failure
Expected results:
guest get 448 vcpus
Additional info:
host name:lenovo-sr950-01.khw2.lab.eng.bos.redhat.com
host cpu:
CPU(s): 448
On-line CPU(s) list: 0-447
Vendor ID: GenuineIntel
BIOS Vendor ID: Intel(R) Corporation
Model name: Intel(R) Xeon(R) Platinum 8180 CPU @ 2.50GHz
BIOS Model name: Intel(R) Xeon(R) Platinum 8180 CPU @ 2.50GHz
CPU family: 6
Model: 85
Thread(s) per core: 2
Core(s) per socket: 28
Socket(s): 8
Thank you Yiqian and Gerd. And according to Comment 13 and Comment 14, set status to VERIFIED, track the new issue by bug 2224509. Thank you very much.
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory (Moderate: edk2 security, bug fix, and enhancement update), and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://access.redhat.com/errata/RHSA-2023:6330
Description of problem: Failed to hot-plug 448 cpus to rhel9.1.0 guest with q35 + OVMF Version-Release number of selected component (if applicable): host version: kernel-5.14.0-160.el9.x86_64 qemu-kvm-7.0.0-12.el9.x86_64 edk2-ovmf-20220526git16779ede2d36-3.el9.noarch guest: rhel9.1.0 How reproducible: 100% Steps to Reproduce: 1.Boot guest with "cpus_hotplug.sh" script # sh cpus_hotplug.sh ovmf 2.After the cpus_hotplug.sh script is complete, check cpu number and dmesg message in guest. # lscpu # dmesg Actual results: After step 2, guest get 224 vcpus, the following message is found in dmesg: [ 2021.441073] APIC: NR_CPUS/possible_cpus limit of 224 reached. Processor 670/0x1f7 ignored. [ 2021.442429] ACPI: Unable to map lapic to logical cpu number [ 2021.443277] acpi ACPI0007:df: Enumeration failure Expected results: guest get 448 vcpus Additional info: host name:lenovo-sr950-01.khw2.lab.eng.bos.redhat.com host cpu: CPU(s): 448 On-line CPU(s) list: 0-447 Vendor ID: GenuineIntel BIOS Vendor ID: Intel(R) Corporation Model name: Intel(R) Xeon(R) Platinum 8180 CPU @ 2.50GHz BIOS Model name: Intel(R) Xeon(R) Platinum 8180 CPU @ 2.50GHz CPU family: 6 Model: 85 Thread(s) per core: 2 Core(s) per socket: 28 Socket(s): 8