TDA4VE-Q1: add trace in linux

xie jc

Expert 2200 points

Part Number: TDA4VE-Q1
Other Parts Discussed in Thread: TDA4VM

Tool/software:

Hi, TI experts,

I tried to add the trace configuration of the linux kernel in Veco's 9.2SDK as follows

CONFIG_FTRACE=y

CONFIG_FUNCTION_TRACER=y

CONFIG_FUNCTION_GRAPH_TRACER=y

CONFIG_TRACEPOINTS=y

CONFIG_IRQSOFF_TRACER=y

CONFIG_SCHED_TRACER=y

CONFIG_CONTEXT_SWITCH_TRACER=y

But as soon as I add these configurations, the DRM will give an error when powering on, and then I can't run some of my programs, such as camera demo.

The following is my log when I started the computer, please help me see what the problem is, or do you have any experience in adding trace to give it to me.

/cfs-file/__key/communityserver-discussions-components-files/791/3750.boot.txt

Thanks!

BRs

regard

22 days ago

0 Tanmay Patil 22 days ago

TI__Mastermind 38990 points

Hi,

Please see the following attached config which I have used with TDA4VM to get ftrace. Can you please compare and see if there are aany further config differences you need.

j721e_ftrace.config

Regards,
Tanmay

0 xie jc 22 days ago in reply to Tanmay Patil

Expert 2200 points

I used your trace-related configuration, but there is still a DRM error, and I can't run some of my applications.

0 Tanmay Patil 21 days ago in reply to xie jc

TI__Mastermind 38990 points

Hi,

Can you confirm that without the ftrace changes, the system was working without any errors?

Is it possible to disable drm for timebeing and see what is happening?

What do you wish to do with the ftrace by the way?

Regards,
Tanmay

0 xie jc 21 days ago in reply to Tanmay Patil

Expert 2200 points

1. I confirm that the system is normal when I do not add trace
2. There is not only DRM in the error report, but also other modules, and it is useless to disable DRM alone. And it actually affects the activation of the R core
3. We have encountered some problems in resources and need this to assist in analysis

In addition, I did this on Veco's 9.2SDK

0 xie jc 21 days ago in reply to xie jc

Expert 2200 points

After adding trace, all the core are waiting for IPC

0 xie jc 20 days ago in reply to xie jc

Expert 2200 points

I tried to edit the whole package and then update the whole package, and the kernel would not report the error of the unsigned table, but the r5f and c7x was still abnormal.Blocking in the function appLogCpuSyncWithSlave

0 Tanmay Patil 20 days ago in reply to xie jc

TI__Mastermind 38990 points

Hi,

Can you just share your entire config file used. I will try with this config on my end and see if I get the same issues.

Regards,
Tanmay

0 xie jc 20 days ago in reply to Tanmay Patil

Expert 2200 points

/cfs-file/__key/communityserver-discussions-components-files/791/2474.defconfig.txt

Please refer to this.

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TDA4VE-Q1: add trace in linux