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charles17
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PostPosted: Tue Jun 20, 2017 2:02 pm    Post subject: Kernel config for i7-3740QM Reply with quote

lshw on my Dell laptop is showing different results between being run from sysresccd and from my own kernel configuration. Version of lshw is B.02.16 in both cases.

From my own configuration it's missing version: 6.10.9 and serial : xxxx-xxxx-xxxx-xxxx-xxxx-xxxx-xxxx and it only displays one cpu but none of the logical cpu.
lshw -class cpu from my own kernel configuration:
  *-cpu
       description: CPU
       product: Intel(R) Core(TM) i7-3740QM CPU @ 2.70GHz
       vendor: Intel Corp.
       physical id: 54
       bus info: cpu@0
       version: Intel(R) Core(TM) i7-3740QM CPU @ 2.70GHz
       slot: SOCKET 0
       size: 1200MHz
       capacity: 1200MHz
       width: 64 bits
       clock: 100MHz
       capabilities: x86-64 fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe sysca
       configuration: cores=4 enabledcores=4 threads=8

Which is the kernel option I have to enable to get the full display for cpu? Any help is much appreciated.

Edit: Changed subject to "Kernel config for i7-3740QM"


Last edited by charles17 on Wed Jun 21, 2017 7:55 am; edited 1 time in total
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DONAHUE
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PostPosted: Tue Jun 20, 2017 10:11 pm    Post subject: Reply with quote

cat /proc/cpuinfo might be more informative.
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Ant P.
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PostPosted: Tue Jun 20, 2017 10:44 pm    Post subject: Re: lshw -class cpu - version and serial Reply with quote

charles17 wrote:
Which is the kernel option I have to enable to get the full display for cpu? Any help is much appreciated.

Probably the msr or cpuid driver.
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charles17
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PostPosted: Wed Jun 21, 2017 5:43 am    Post subject: Reply with quote

DONAHUE wrote:
cat /proc/cpuinfo might be more informative.
It doesn't show the difference as seen with lshw. Here it is from my own configuration: cat /proc/cpuinfo and this is the difference.

Ant P. wrote:
Probably the msr or cpuid driver.
Both are enabled
grep -E 'MSI|CPUID' .config:
CONFIG_GENERIC_MSI_IRQ=y
CONFIG_GENERIC_MSI_IRQ_DOMAIN=y
CONFIG_X86_CPUID=y
CONFIG_PCI_MSI=y
CONFIG_PCI_MSI_IRQ_DOMAIN=y
# CONFIG_MSI_LAPTOP is not set
# CONFIG_MSI_WMI is not set

But there must be a reason why lshw shows it so diffetently.
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Ant P.
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PostPosted: Wed Jun 21, 2017 6:40 am    Post subject: Reply with quote

msr, not msi.
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charles17
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PostPosted: Wed Jun 21, 2017 10:21 am    Post subject: Reply with quote

Ant P. wrote:
msr, not msi.
Uuh, misreading :-(
grep MSR .config:
CONFIG_X86_DEBUGCTLMSR=y
CONFIG_X86_MSR=y
CONFIG_SCSI_ARCMSR=y

The CONFIG_SCSI_ARCMSR was not enabled. But enabling it didn't help.
Some more ideas? Kernel .config is here.

(Think I'd better change the subject to "kernel config for i7-3740QM")
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