Messages in this thread | | | Date | Wed, 22 Oct 2008 18:17:20 +0400 | From | Cyrill Gorcunov <> | Subject | Re: [PATCH -tip] x86: do_boot_cpu - check if we have ESR register |
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[Ingo Molnar - Wed, Oct 22, 2008 at 04:13:54PM +0200] | | * Cyrill Gorcunov <gorcunov@gmail.com> wrote: | | > We should touch ESR register if only we have it. | > The patch fixes the problem mentoined here | > | > http://lkml.org/lkml/2008/10/17/147 | > | > Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com> | > CC: Glauber Costa <glommer@gmail.com> | | > - apic_write(APIC_ESR, 0); | > - apic_read(APIC_ESR); | > + if (APIC_INTEGRATED(apic_version[phys_apicid])) { | > + apic_write(APIC_ESR, 0); | > + apic_read(APIC_ESR); | > + } | | i'm wondering - is the server there really that old, that it has no | integrated lapic? I.e. it's an i486 SMP box or so? Or perhaps some | other, weird SMP box? | | Ingo |
I was quite wondering too -- it's Xeon server.
From http://lkml.org/lkml/2008/10/20/34 >> Hardware: Compaq P4 Xeon server, Broadcom CMIC-WS / CIOB-X2 board. >> Tell me if you need more detailed information.
- Cyrill -
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