Messages in this thread | | | Date | Thu, 24 Dec 2009 23:38:51 -0800 | Subject | Re: All kernels after 2.6.32-git10 show only 1 CPU | From | Yinghai Lu <> |
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On Wed, Dec 23, 2009 at 8:55 AM, Sid Boyce <sboyce@blueyonder.co.uk> wrote: > On the 4P box, 2.6.32-git10 boots and shows 4 CPU's, 2.6.32-git12 boots > and shows 1 CPU, 2.6.32-git15 to 2.6.33-rc1-git3 1 CPU and lots of oops, > continues with something like "Sending NMI interrupts to CPU's", > [udev] unexpectedly returned with status 0x0100 > [udev] failed while handling /devices/pci000:00 -----etc--- same for > other devices. > Unable to capture via serial console as USB doesn't come ready. > > On 2P laptop, up to 2.6.33-rc1 boots, 1 CPU and boot option "acpi=noirq" > needed, without it boot hangs, I think from 2.6.32-git15. > Building kernels, I have used the .config from previous kernel and > "make oldconfig". > > # uname -r > 2.6.32-git12-smp > slipstream:~ # cat /proc/cpuinfo > processor : 0 > vendor_id : AuthenticAMD > cpu family : 16 > model : 4 > model name : AMD Phenom(tm) II X4 940 Processor > stepping : 2 > cpu MHz : 3013.597 > cache size : 512 KB > physical id : 0 > siblings : 1 > core id : 0 > cpu cores : 1 > apicid : 0 > initial apicid : 0 > fpu : yes > fpu_exception : yes > cpuid level : 5 > wp : yes > flags : fpu vme de pse tsc msr pae mce cx8 sep mtrr pge mca > cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt > pdpe1gb rdtscp lm 3dnowext 3dnow constant_tsc up rep_good nonstop_tsc > pni monitor cx16 popcnt lahf_lm cmp_legacy svm extapic cr8_legacy abm > sse4a misalignsse 3dnowprefetch osvw ibs skinit wdt > bogomips : 6027.18 > TLB size : 1024 4K pages > clflush size : 64 > cache_alignment : 64 > address sizes : 48 bits physical, 48 bits virtual > power management: ts ttp tm stc 100mhzsteps hwpstate > > # uname -r > 2.6.32-git10-smp > > # cat /proc/cpuinfo > processor : 0 > vendor_id : AuthenticAMD > cpu family : 16 > model : 4 > model name : AMD Phenom(tm) II X4 940 Processor > stepping : 2 > cpu MHz : 3013.774 > cache size : 512 KB > physical id : 0 > siblings : 4 > core id : 0 > cpu cores : 4 > apicid : 0 > initial apicid : 0 > fpu : yes > fpu_exception : yes > cpuid level : 5 > wp : yes > flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge > mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext > fxsr_opt pdpe1gb rdtscp lm 3dnowext 3dnow constant_tsc rep_good > nonstop_tsc extd_apicid pni monitor cx16 popcnt lahf_lm cmp_legacy svm > extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs skinit wdt > bogomips : 6027.53 > TLB size : 1024 4K pages > clflush size : 64 > cache_alignment : 64 > address sizes : 48 bits physical, 48 bits virtual > power management: ts ttp tm stc 100mhzsteps hwpstate > > processor : 1 > vendor_id : AuthenticAMD > cpu family : 16 > model : 4 > model name : AMD Phenom(tm) II X4 940 Processor > stepping : 2 > cpu MHz : 3013.774 > cache size : 512 KB > physical id : 0 > siblings : 4 > core id : 1 > cpu cores : 4 > apicid : 1 > initial apicid : 1 > fpu : yes > fpu_exception : yes > cpuid level : 5 > wp : yes > flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge > mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext > fxsr_opt pdpe1gb rdtscp lm 3dnowext 3dnow constant_tsc rep_good > nonstop_tsc extd_apicid pni monitor cx16 popcnt lahf_lm cmp_legacy svm > extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs skinit wdt > bogomips : 6027.27 > TLB size : 1024 4K pages > clflush size : 64 > cache_alignment : 64 > address sizes : 48 bits physical, 48 bits virtual > power management: ts ttp tm stc 100mhzsteps hwpstate > > etc., up to processor 4. > > On a 2P laptop > =============== > tindog:~ # uname -r > 2.6.33-rc1-smp > > tindog:~ # cat /proc/cpuinfo > processor : 0 > vendor_id : AuthenticAMD > cpu family : 15 > model : 67 > model name : AMD Athlon(tm) 64 X2 Dual Core Processor 6000+ > stepping : 3 > cpu MHz : 1000.000 > cache size : 1024 KB > physical id : 0 > siblings : 1 > core id : 0 > cpu cores : 1 > apicid : 0 > initial apicid : 0 > fpu : yes > fpu_exception : yes > cpuid level : 1 > wp : yes > flags : fpu vme de pse tsc msr pae mce cx8 sep mtrr pge mca > cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt > rdtscp lm 3dnowext 3dnow up rep_good pni cx16 lahf_lm cmp_legacy svm > extapic cr8_legacy > bogomips : 2009.33 > TLB size : 1024 4K pages > clflush size : 64 > cache_alignment : 64 > address sizes : 40 bits physical, 48 bits virtual > power management: ts fid vid ttp tm stc > > The .config for the 4P and 2.6.33-rc1-git3 attached.
Can you disable MAXSMP?
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