Messages in this thread Patch in this message | | | From | Thomas Gleixner <> | Subject | Re: Early boot regression from f0551af0213 ("x86/topology: Ignore non-present APIC IDs in a present package") | Date | Thu, 18 Apr 2024 21:13:34 +0200 |
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On Thu, Apr 18 2024 at 13:20, Lyude Paul wrote:
> Just gave it a try, unfortunately I'm still seeing the same result on > that branch. > > One more piece of information I apparently missed when reporting this > yesterday btw: I noticed one more kernel message that comes before the > panic that's probably relevant: > > ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1
Can you please apply the debug patch below which should make it boot again.
Please also provide the output of the files underneath of
/sys/kernel/debug/x86/topo/
Thanks,
tglx --- arch/x86/kernel/cpu/topology.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-)
--- a/arch/x86/kernel/cpu/topology.c +++ b/arch/x86/kernel/cpu/topology.c @@ -176,6 +176,8 @@ static __init void topo_register_apic(u3 { int cpu, dom; + pr_info("APIC ID %x present %d\n", apic_id, present); + if (present) { set_bit(apic_id, phys_cpu_present_map); @@ -201,10 +203,7 @@ static __init void topo_register_apic(u3 */ if (hypervisor_is_type(X86_HYPER_NATIVE) && topo_unit_count(pkgid, TOPO_PKG_DOMAIN, phys_cpu_present_map)) { - pr_info_once("Ignoring hot-pluggable APIC ID %x in present package.\n", - apic_id); - topo_info.nr_rejected_cpus++; - return; + pr_info("Hot-pluggable APIC ID %x in present package.\n", apic_id); } topo_info.nr_disabled_cpus++;
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