System with 12 CPUs will not boot
in [General Linux]
|
From: Rui Maciel on 11 Jul 2010 08:41 HoneyMonster wrote: >> But what does it mean, serious, corporate level distro? >> > Red Hat, with a support contract, you berk. This sounds an awful lot as "you don't get fired by choosing IBM/Microsoft". To put it in other words, there is no technical reasoning behind the decision. Is this the case? Rui Maciel
From: Man-wai Chang on 11 Jul 2010 08:49 On 7/11/2010 20:48, Man-wai Chang wrote: > On 7/10/2010 02:27, Ignoramus30064 wrote: >> We have a server with 12 processors (one of those things with two >> physical processors with 6 cores each). >> >> Ubuntu, by default, sees only 8 CPUs. (this applies to any version, >> but this is specifically 8.04). > > I guess you are using an Intel CPU. It's *NOT*12 processors, but 6 cores > with hyper-threading! > > Boot it up with a normal Ubuntu, then compile a new kernel supporting > more than 6 cores via `make menuconfig`! Sorry, "more than 4 cores"! -- @~@ Might, Courage, Vision, SINCERITY. / v \ Simplicity is Beauty! May the Force and Farce be with you! /( _ )\ (x86_64 Ubuntu 9.10) Linux 2.6.34.1 ^ ^ 20:48:01 up 4:49 1 user load average: 1.09 1.09 1.02 不借貸! 不詐騙! 不援交! 不打交! 不打劫! 不自殺! 請考慮綜援 (CSSA): http://www.swd.gov.hk/tc/index/site_pubsvc/page_socsecu/sub_addressesa
From: Man-wai Chang on 11 Jul 2010 08:54 > > Sorry, "more than 4 cores"! > Screenshot in graphical format: http://www.glowfoto.com/static_image/11-052707L/6508/jpg/07/2010/img5/glowfoto -- @~@ Might, Courage, Vision, SINCERITY. / v \ Simplicity is Beauty! May the Force and Farce be with you! /( _ )\ (x86_64 Ubuntu 9.10) Linux 2.6.34.1 ^ ^ 20:53:01 up 4:54 1 user load average: 1.11 1.09 1.03 不借貸! 不詐騙! 不援交! 不打交! 不打劫! 不自殺! 請考慮綜援 (CSSA): http://www.swd.gov.hk/tc/index/site_pubsvc/page_socsecu/sub_addressesa
From: Ignoramus4896 on 11 Jul 2010 09:53 On 2010-07-11, Man-wai Chang <toylet.toylet(a)gmail.com> wrote: > On 7/10/2010 02:27, Ignoramus30064 wrote: >> We have a server with 12 processors (one of those things with two >> physical processors with 6 cores each). >> >> Ubuntu, by default, sees only 8 CPUs. (this applies to any version, >> but this is specifically 8.04). > > I guess you are using an Intel CPU. It's *NOT*12 processors, but 6 cores > with hyper-threading! > > Boot it up with a normal Ubuntu, then compile a new kernel supporting > more than 6 cores via `make menuconfig`! Yes, that's what I ended up doing, thanks i > .config - Linux Kernel v2.6.34.1 Configuration > > ?????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? > ????????????????????????????????????????????????????????????????????? Processor type and features > ????????????????????????????????????????????????????????????????????? > ??? Arrow keys navigate the menu. <Enter> selects submenus --->. > ??? > ??? Highlighted letters are hotkeys. Pressing <Y> includes, <N> > excludes, ??? > ??? <M> modularizes features. Press <Esc><Esc> to exit, <?> for Help, ></> ??? > ??? for Search. Legend: [*] built-in [ ] excluded <M> module < > > ??? > ??? > ???????????????^(-)?????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? ??? > ??? ??? Processor family (Generic-x86-64) ---> > ??? ??? > ??? ??? [*] IBM Calgary IOMMU support > ??? ??? > ??? ??? [*] Should Calgary be enabled by default? > ??? ??? > ??? ??? [*] AMD IOMMU support > ??? ??? > ??? ??? [*] Export AMD IOMMU statistics to debugfs > ??? ??? > ??? ??? [ ] Configure Maximum number of SMP Processors and NUMA Nodes > ??? ??? > ??? ??? (4) Maximum number of CPUs > ??? ??? > ??? ??? [*] SMT (Hyperthreading) scheduler support > ??? ??? > ??? ??? [*] Multi-core scheduler support > ??? ??? > ??? ??? Preemption Model (Preemptible Kernel (Low-Latency > Desktop)) ??? ??? > ??? ??? [*] Reroute for broken boot IRQs > ??? ??? > ??? > ???????????????v(+)?????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? ??? > > ????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? > ??? <Select> < Exit > < Help > > ??? > > ????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? > > > > > >
From: J G Miller on 11 Jul 2010 10:11
On Sunday, July 11th, 2010 at 20:48:20h +0800, Man-wai Chang the lazy Cantonese Gamer Droid advised: > > Boot it up with a normal Ubuntu, then compile a new kernel supporting > more than 6 cores via `make menuconfig`! Should one chose SLAB or SLAB though? |