Messages in this thread | | | Date | Thu, 14 Aug 2008 15:16:58 +0800 | From | "Jeff Chua" <> | Subject | Re: 2.6.27rc1 cannot boot more than 8CPUs |
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On Thu, Aug 14, 2008 at 2:33 AM, Yinghai Lu <yhlu.kernel@gmail.com> wrote:
>>>> > With 16 CPUs, it still hangs, but now the console is showing the >>>> > errors as intended. >>>> > ... but it is supposed to hang?
> please check the attached patch. it should fix the new regression and > will not hang.
Ok, booted up and not hanged, but those messages below don't show up anywhere. I've tested with CONFIG_NR_CPUS=16 and 8 as well. Just got 8 cpus
More than 8 CPUs detected - skipping them. Use CONFIG_X86_GENERICARCH and CONFIG_X86_BIGSMP.
# cat /sys/devices/system/cpu/possible 0-7
CONFIG_X86_32=y CONFIG_X86_PC=y
Looks like it's not going into this condition + if (def_to_bigsmp && nr_cpu_ids > 8) {
Shall this be put back so that it'll show the message? - if (def_to_bigsmp && apicid > 8) { - printk(KERN_WARNING - "More than 8 CPUs detected - skipping them.\n" - "Use CONFIG_X86_GENERICARCH and CONFIG_X86_BIGSMP.\n"); - }
Thanks, Jeff.
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