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On Mon, 19 Nov 2012 22:57:49 +0100 |
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"J. Roeleveld" <joost@××××××××.org> wrote: |
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> john <jdm@××××××××××××.uk> wrote: |
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> |
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> >On Mon, 19 Nov 2012 20:15:24 +0000 |
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> >john <jdm@××××××××××××.uk> wrote: |
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> > |
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> >> Hi Gentoo. |
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> >> |
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> >> I have recently got a FX8350 and all is going very well. |
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> >> After a week of using I have had no issues and then realised I had |
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> >not |
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> >> set man number of cpus in kernel config. |
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> >> |
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> >> This was set to 6. So as FX8350 is an eight core beast. I decided |
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> >> to set to 8. |
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> >> |
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> >> Upon reboot the boot hangs at |
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> >> |
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> >> waiting for uevents to be processed. |
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> >> |
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> >> This hangs for 60 seconds and then starts spitting out the |
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> >> following |
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> >> |
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> >> timeout killing /sbin/modprobe -bv xcpu_vendor 0002 + lots of 4 |
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> >> long numbers. Sorry, I cannot trap these as they fly by. |
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> >> |
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> >> in a continous loop. |
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> >> |
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> >> Reset required. |
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> >> |
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> >> Booting from old kernel is still ok (6 cores set). |
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> >> |
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> >> Looking in /proc/cpuinfo there are only 6 cores. |
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> >> |
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> >> I can boot ok from Windows which shows 8 cores and I have also |
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> >updated |
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> >> BIOS to latest version. |
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> >> |
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> >> Any ideas |
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> >> |
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> >> Is there any way to detect or test that I using 8 cores? |
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> >> |
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> > |
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> >Have tried booting from Arch linux which boots fine and shows 8 cores |
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> >in /proc/cpuinfo |
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> > |
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> >I must be missing a kernel config option somewhere but do not |
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> >understand why a simple change from 6 to 8 cpus should make a |
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> >difference. |
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> |
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> John. |
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> |
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> Have you tried comparing the kernel config between your kernel and |
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> the one arch linux uses? |
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> |
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> -- |
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> Joost |
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Tried the 3.6.6 kernel which sorts this problem (same as Arch). Perhaps |
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a kernel bug ??? But have no idea really. Fascinating. Will have |
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another dig tomorrow |
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Was using 3.5.7. Did try make mrproper, removing all modules from boot |
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but nothing helped with that kernel. |
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Although I didn't compare the kernels it suggested to me to use a |
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different version which sorted the issue. |
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I can now use all 8 cores. What will I do? I've never know such times |
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thanks |
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-- |
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John D Maunder |
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