intel z3850 on archlinux

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jmandawg
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Joined: Thu 4. Jul 2019, 03:35
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intel z3850 on archlinux

Post by jmandawg » Thu 4. Jul 2019, 03:45

Hi all,

I guess first question is, does PHC work with intel cherrytrail z3850 chips?

I built the dkms module from the AUR.
If the first answer is yes, i'm having problems loadin the module in arch linux.

The only thing i see in dmesg is:

Code: Select all

[   11.662607] phc_intel: loading out-of-tree module taints kernel.
[   11.662786] phc_intel: module verification failed: signature and/or required key missing - tainting kernel
And the module does not show up in lsmod


Here is the CPU specs:

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cat /proc/cpuinfo 
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 76
model name	: Intel(R) Atom(TM) x5-Z8350  CPU @ 1.44GHz
stepping	: 4
microcode	: 0x411
cpu MHz		: 513.234
cache size	: 1024 KB
physical id	: 0
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 0
initial apicid	: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu 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 syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology tsc_reliable nonstop_tsc cpuid aperfmperf tsc_known_freq pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm sse4_1 sse4_2 movbe popcnt tsc_deadline_timer aes rdrand lahf_lm 3dnowprefetch epb pti ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid tsc_adjust smep erms dtherm ida arat md_clear
bugs		: cpu_meltdown spectre_v1 spectre_v2 mds msbds_only
bogomips	: 2881.00
clflush size	: 64
cache_alignment	: 64
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 76
model name	: Intel(R) Atom(TM) x5-Z8350  CPU @ 1.44GHz
stepping	: 4
microcode	: 0x411
cpu MHz		: 738.491
cache size	: 1024 KB
physical id	: 0
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 2
initial apicid	: 2
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu 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 syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology tsc_reliable nonstop_tsc cpuid aperfmperf tsc_known_freq pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm sse4_1 sse4_2 movbe popcnt tsc_deadline_timer aes rdrand lahf_lm 3dnowprefetch epb pti ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid tsc_adjust smep erms dtherm ida arat md_clear
bugs		: cpu_meltdown spectre_v1 spectre_v2 mds msbds_only
bogomips	: 2881.00
clflush size	: 64
cache_alignment	: 64
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 2
vendor_id	: GenuineIntel
cpu family	: 6
model		: 76
model name	: Intel(R) Atom(TM) x5-Z8350  CPU @ 1.44GHz
stepping	: 4
microcode	: 0x411
cpu MHz		: 836.242
cache size	: 1024 KB
physical id	: 0
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 4
initial apicid	: 4
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu 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 syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology tsc_reliable nonstop_tsc cpuid aperfmperf tsc_known_freq pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm sse4_1 sse4_2 movbe popcnt tsc_deadline_timer aes rdrand lahf_lm 3dnowprefetch epb pti ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid tsc_adjust smep erms dtherm ida arat md_clear
bugs		: cpu_meltdown spectre_v1 spectre_v2 mds msbds_only
bogomips	: 2881.00
clflush size	: 64
cache_alignment	: 64
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 3
vendor_id	: GenuineIntel
cpu family	: 6
model		: 76
model name	: Intel(R) Atom(TM) x5-Z8350  CPU @ 1.44GHz
stepping	: 4
microcode	: 0x411
cpu MHz		: 981.077
cache size	: 1024 KB
physical id	: 0
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 6
initial apicid	: 6
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu 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 syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology tsc_reliable nonstop_tsc cpuid aperfmperf tsc_known_freq pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm sse4_1 sse4_2 movbe popcnt tsc_deadline_timer aes rdrand lahf_lm 3dnowprefetch epb pti ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid tsc_adjust smep erms dtherm ida arat md_clear
bugs		: cpu_meltdown spectre_v1 spectre_v2 mds msbds_only
bogomips	: 2881.00
clflush size	: 64
cache_alignment	: 64
address sizes	: 36 bits physical, 48 bits virtual
power management:


It's confusing because on the arch wiki it says to run "phc-intel setup" command, but when i try to run it i get:

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phc-intel setup
usage: /usr/bin/phc-intel {start|stop|status|set}


So i'm guessing their wiki is out of date.

Any ideas? Thanks.

lio
Posts: 91
Joined: Wed 2. Mar 2011, 18:37
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Re: intel z3850 on archlinux

Post by lio » Mon 8. Jul 2019, 09:12

jmandawg wrote:
Thu 4. Jul 2019, 03:45
I guess first question is, does PHC work with intel cherrytrail z3850 chips?
Pretty sure that'S a no. Anything more recent than roughly a decade is out of scope for phc-intel. On how to build modules for a signed kernel in arch or using an unsigned kernel you are probably better off with the arch documentation.

lio

jmandawg
Posts: 2
Joined: Thu 4. Jul 2019, 03:35
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Re: intel z3850 on archlinux

Post by jmandawg » Tue 9. Jul 2019, 16:23

ok, that makes sense, thanks for the response.

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