linux-kernel - Re: [ftrace] kernel panics during my attempt to use ftrace

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Date:	Fri, 24 Jun 2016 10:08:19 +0200 (CEST)
From:	Enrico Mioso <mrkiko.rs@...il.com>
To:	Steven Rostedt <rostedt@...dmis.org>
cc:	linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...hat.com>,
	mattia.bonomi@...denti.unitn.it
Subject: Re: [ftrace] kernel panics during my attempt to use ftrace

Hi Steven.

Thank you for your very very kind response.
I can build a stock kernel (I usually did for my real hw): and I don't see problems on this.
The problem is the bitness. My only KVM-enabled machine, as far as I can tell, has a 32-bit CPU.
So This would be a different problem.
I'll let you know when I can continue: right now I am a little bit in trouble with my exams: but I hope I will be able to eventually cme back and test.

Below my cpuinfo just for the record.
Thank you very much,
Enrico

processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 28
model name	: Intel(R) Atom(TM) CPU Z520   @ 1.33GHz
stepping	: 2
microcode	: 0x211
cpu MHz		: 1333.000
cache size	: 512 KB
physical id	: 0
siblings	: 2
core id		: 0
cpu cores	: 1
apicid		: 0
initial apicid	: 0
fdiv_bug	: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 10
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx constant_tsc arch_perfmon pebs bts aperfmperf eagerfpu pni dtes64 monitor ds_cpl vmx est tm2 ssse3 xtpr pdcm movbe lahf_lm tpr_shadow vnmi flexpriority dtherm
bugs		:
bogomips	: 2662.89
clflush size	: 64
cache_alignment	: 64
address sizes	: 32 bits physical, 32 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 28
model name	: Intel(R) Atom(TM) CPU Z520   @ 1.33GHz
stepping	: 2
microcode	: 0x211
cpu MHz		: 800.000
cache size	: 512 KB
physical id	: 0
siblings	: 2
core id		: 0
cpu cores	: 1
apicid		: 1
initial apicid	: 1
fdiv_bug	: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 10
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx constant_tsc arch_perfmon pebs bts aperfmperf eagerfpu pni dtes64 monitor ds_cpl vmx est tm2 ssse3 xtpr pdcm movbe lahf_lm tpr_shadow vnmi flexpriority dtherm
bugs		:
bogomips	: 2662.42
clflush size	: 64
cache_alignment	: 64
address sizes	: 32 bits physical, 32 bits virtual
power management: