Public bug reported:
OS: Ubuntu 22.04.3 LTS
Release: 22.04
Kernel: 6.2.0-060200-generic
CPU: 1x EPYC 9654
DIMM: 2x Samsung DDR5 16G
1.Install Ubuntu 22.04.3 and upgrade its kernel to 6.2.0-060200-generic (also
tried on kernel 6.5.7-060507)
2.Reboot system and enable SMT-Control from BIOS.
3.Boot to system to read lscpu.txt and dmesg.txt,
lscpu log show Off-line CPU(s) info as below:
CPU(s): 192
On-line CPU(s) list: 0-95,97-191
Off-line CPU(s) list: 96
Vendor ID: AuthenticAMD
Model name: AMD EPYC 9654 96-Core Processor
CPU family: 25
Model: 17
Thread(s) per core: 2
Core(s) per socket: 96
Socket(s): 1
Stepping: 1
Frequency boost: enabled
dmesg log show CPU fail info as below,
[ 0.360560] smp: Bringing up secondary CPUs ...
[ 0.360708] x86: Booting SMP configuration:
[ 0.360711] .... node #0, CPUs: #1 #2 #3 #4 #5 #6 #7
#8 #9 #10 #11 #12 #13 #14 #15 #16 #17 #18 #19 #20 #21 #22 #23
#24 #25 #26 #27 #28 #29 #30 #31 #32 #33 #34 #35 #36 #37 #38 #39
#40 #41 #42 #43 #44 #45 #46 #47 #48 #49 #50 #51 #52 #53 #54 #55
#56 #57 #58 #59 #60 #61 #62 #63 #64 #65 #66 #67 #68 #69 #70 #71
#72 #73 #74 #75 #76 #77 #78 #79 #80 #81 #82 #83 #84 #85 #86 #87
#88 #89 #90 #91 #92 #93 #94 #95 #96
[ 10.631524] smpboot: do_boot_cpu failed(-1) to wakeup CPU#96
[ 10.631842] #97
BTW, we also find the same bug on AMD EPYC 9534 64-Core CPU with Ubuntu
22.04.3-kernel 6.2.0 and 6.5.7.
** Affects: linux-hwe (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/2042888
Title:
It shows 'smpboot: do_boot_cpu failed(-1) to wakeup CPU#96' in system
dmesg log with kernel version 6.2.0-060200-generic.
Status in linux-hwe package in Ubuntu:
New
Bug description:
OS: Ubuntu 22.04.3 LTS
Release: 22.04
Kernel: 6.2.0-060200-generic
CPU: 1x EPYC 9654
DIMM: 2x Samsung DDR5 16G
1.Install Ubuntu 22.04.3 and upgrade its kernel to 6.2.0-060200-generic (also
tried on kernel 6.5.7-060507)
2.Reboot system and enable SMT-Control from BIOS.
3.Boot to system to read lscpu.txt and dmesg.txt,
lscpu log show Off-line CPU(s) info as below:
CPU(s): 192
On-line CPU(s) list: 0-95,97-191
Off-line CPU(s) list: 96
Vendor ID: AuthenticAMD
Model name: AMD EPYC 9654 96-Core Processor
CPU family: 25
Model: 17
Thread(s) per core: 2
Core(s) per socket: 96
Socket(s): 1
Stepping: 1
Frequency boost: enabled
dmesg log show CPU fail info as below,
[ 0.360560] smp: Bringing up secondary CPUs ...
[ 0.360708] x86: Booting SMP configuration:
[ 0.360711] .... node #0, CPUs: #1 #2 #3 #4 #5 #6 #7
#8 #9 #10 #11 #12 #13 #14 #15 #16 #17 #18 #19 #20 #21 #22 #23
#24 #25 #26 #27 #28 #29 #30 #31 #32 #33 #34 #35 #36 #37 #38 #39
#40 #41 #42 #43 #44 #45 #46 #47 #48 #49 #50 #51 #52 #53 #54 #55
#56 #57 #58 #59 #60 #61 #62 #63 #64 #65 #66 #67 #68 #69 #70 #71
#72 #73 #74 #75 #76 #77 #78 #79 #80 #81 #82 #83 #84 #85 #86 #87
#88 #89 #90 #91 #92 #93 #94 #95 #96
[ 10.631524] smpboot: do_boot_cpu failed(-1) to wakeup CPU#96
[ 10.631842] #97
BTW, we also find the same bug on AMD EPYC 9534 64-Core CPU with
Ubuntu 22.04.3-kernel 6.2.0 and 6.5.7.
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