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    apic, i386/bigsmp: Fix false warnings regarding logical APIC ID mismatches · 838312be
    Jan Beulich 提交于
    These warnings (generally one per CPU) are a result of
    initializing x86_cpu_to_logical_apicid while apic_default is
    still in use, but the check in setup_local_APIC() being done
    when apic_bigsmp was already used as an override in
    default_setup_apic_routing():
    
     Overriding APIC driver with bigsmp
     Enabling APIC mode:  Physflat.  Using 5 I/O APICs
     ------------[ cut here ]------------
     WARNING: at .../arch/x86/kernel/apic/apic.c:1239
     ...
     CPU 1 irqstacks, hard=f1c9a000 soft=f1c9c000
     Booting Node   0, Processors  #1
     smpboot cpu 1: start_ip = 9e000
     Initializing CPU#1
     ------------[ cut here ]------------
     WARNING: at .../arch/x86/kernel/apic/apic.c:1239
     setup_local_APIC+0x137/0x46b() Hardware name: ...
     CPU1 logical APIC ID: 2 != 8
     ...
    
    Fix this (for the time being, i.e. until
    x86_32_early_logical_apicid() will get removed again, as Tejun
    says ought to be possible) by overriding the previously stored
    values at the point where the APIC driver gets overridden.
    
    v2: Move this and the pre-existing override logic into
        arch/x86/kernel/apic/bigsmp_32.c.
    Signed-off-by: NJan Beulich <jbeulich@suse.com>
    Acked-by: NTejun Heo <tj@kernel.org>
    Cc: <stable@kernel.org> (2.6.39 and onwards)
    Link: http://lkml.kernel.org/r/4E835D16020000780005844C@nat28.tlf.novell.comSigned-off-by: NIngo Molnar <mingo@elte.hu>
    838312be
probe_32.c 6.5 KB