Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > linux.kernel > #1236433
| From | Thomas Gleixner <tglx@linutronix.de> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH RFC] x86: Reduce MAX_LOCAL_APIC and MAX_IO_APICS |
| Date | 2015-09-30 17:20 +0200 |
| Message-ID | <qerkJ-kW-13@gated-at.bofh.it> (permalink) |
| References | <qcHWG-3PA-5@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Fri, 25 Sep 2015, Denys Vlasenko wrote: > > +config MAX_LAPIC_ID > + int "Maximum APIC ID" > + range 8 32768 > + default "8" > + ---help--- > + Use this option to set maximum allowed Local APIC ID higher than > + maximum number of CPUs. This may be necessary for machines > + with large number of processor sockets and non-contiguous > + LAPIC numbering. > + This setting will be automatically rounded up, if necessary. This is wrong. If you would limit the APIC IDs then you really break stuff. You can only limit the number of APICs. ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled) ACPI: LAPIC (acpi_id[0x01] lapic_id[0x02] enabled) And that's not a really large machine.. Thanks, tglx -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Back to linux.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
[PATCH RFC] x86: Reduce MAX_LOCAL_APIC and MAX_IO_APICS Denys Vlasenko <dvlasenk@redhat.com> - 2015-09-25 22:40 +0200
Re: [PATCH RFC] x86: Reduce MAX_LOCAL_APIC and MAX_IO_APICS Thomas Gleixner <tglx@linutronix.de> - 2015-09-30 17:20 +0200
Re: [PATCH RFC] x86: Reduce MAX_LOCAL_APIC and MAX_IO_APICS Denys Vlasenko <dvlasenk@redhat.com> - 2015-09-30 18:00 +0200
Re: [PATCH RFC] x86: Reduce MAX_LOCAL_APIC and MAX_IO_APICS Jiang Liu <jiang.liu@linux.intel.com> - 2015-09-30 19:10 +0200
Re: [PATCH RFC] x86: Reduce MAX_LOCAL_APIC and MAX_IO_APICS Thomas Gleixner <tglx@linutronix.de> - 2015-09-30 19:50 +0200
Re: [PATCH RFC] x86: Reduce MAX_LOCAL_APIC and MAX_IO_APICS Jiang Liu <jiang.liu@linux.intel.com> - 2015-09-30 19:20 +0200
csiph-web