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ECI kernel panic when enable ftrace utility

bmh8x
New Contributor I
2,881 Views
Hello,
 
I would like to enable ftrace utility for my Intel ECI 3.0.1 (Distribution: Debian11 (Bullseye) , Linux kernel type: Real-time PREEMPT_RT,  Linux kernel version: 5.10.140-rt73-intel-ese-standard-lts-rt+), but when I execute these following two commands, a kernel panic occurred.
  # echo 'p:ndprobe d_splice_alias inode=%di' > /sys/kernel/debug/tracing/kprobe_events
  # echo '1' > /sys/kernel/debug/tracing/events/kprobes/ndprobe/enable
 
On the other hand, kernel panic do not happen with Debian 11(kernel version: 5.10.0-18-amd64).
 
So I would like to ask why does a kernel panic occur in ECI? And is there a solution?
 

Best regards

Bui

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9 Replies
Iffa_Intel
Moderator
2,831 Views

Hi,

 

could you check whether your kernel configuration enables the ftrace, as in step 2?

You may refer to this documentation.

 

 

Cordially,

Iffa

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bmh8x
New Contributor I
2,819 Views

Hello Iffa,

 

Thank you for your reply!

 

I have checked my kernel configuration. All kernel parameters required for ftrace in step 2 are enabled.
Please find the attached file for your reference.


Best regards

Bui

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Iffa_Intel
Moderator
2,735 Views

Hi,

could you:

  1. try the same steps on the latest ECI release (3.2)?
  2. share the hardware specs for this system.



Cordially,

Iffa


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bmh8x
New Contributor I
2,701 Views

Hello Iffa,

 

Thank you for your advise!

 

       >1.try the same steps on the latest ECI release (3.2)?

→I will try with  ECI 3.2 and I will let you know the result later.

 

       >2.share the hardware specs for this system.

→My hardware specs are as follows:

       ・CPU: Intel Atom(R) x6414RE Processor @ 1.50GHz

       ・MEM: 8GB

Please feel free to ask me if you need more information.

 


Best regards

Bui

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Iffa_Intel
Moderator
2,500 Views

Hi,

 

do inform us soon whether the ECI 3.2 release works.

Thanks

 

Cordially,

Iffa

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bmh8x
New Contributor I
2,420 Views

Hello Iffa,

 

I'm so sorry for the late reply.

I am still preparing for my ECI 3.2 machine. 

I will let you know the result next week.


Best regards

Bui

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Iffa_Intel
Moderator
2,404 Views

Noted and thanks.

 

Cordially,

Iffa

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Iffa_Intel
Moderator
2,042 Views

Hi,


if you don't have any other inquiries, we'll proceed to closing this thread.



Cordially,

Iffa


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Iffa_Intel
Moderator
1,833 Views

Hi,


Thank you for your question. If you need any additional information from Intel, please submit a new question as Intel is no longer monitoring this thread.


Cordially,

Iffa


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