WARNING: CPU: 8 PID: 0 at arch/x86/kernel/smpboot.c:376 topology_sane.isra.3+0x80/0x90

Solution Verified - Updated -

Issue

  • The following warning message is logged with the call trace on boot on RHEL guest on VMware hypervisor:
[    1.149422] ------------[ cut here ]------------
[    1.149432] WARNING: CPU: 8 PID: 0 at arch/x86/kernel/smpboot.c:376 topology_sane.isra.3+0x80/0x90
[    1.149433] sched: CPU #8's llc-sibling CPU #0 is not on the same node! [node: 1 != 0]. Ignoring dependency.
[    1.148225] smpboot: Booting Node   1, Processors  #8
[    1.149434] Modules linked in:

[    1.149436] CPU: 8 PID: 0 Comm: swapper/8 Not tainted 3.10.0-957.5.1.el7.x86_64 #1
[    1.149437] Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 04/05/2016
[    1.149438] Call Trace:
[    1.149445]  [] dump_stack+0x19/0x1b
[    1.149448]  [] __warn+0xd8/0x100
[    1.149450]  [] warn_slowpath_fmt+0x5f/0x80
[    1.149453]  [] ? __mcheck_cpu_init_timer+0x4b/0x50
[    1.149454]  [] topology_sane.isra.3+0x80/0x90
[    1.149456]  [] set_cpu_sibling_map+0x172/0x5b0
[    1.149457]  [] start_secondary+0x121/0x270
[    1.149460]  [] start_cpu+0x5/0x14
[    1.149462] ---[ end trace 54ffb545b2cc344c ]---

Environment

  • Red Hat Enterprise Linux 7.6 (kernel-3.10.0-957.5.1.el7.x86_64)
  • VMware hypervisor
  • NUMA is enabled

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