Need help in printing call stacks for all CPU's

Need help in printing call stacks for all CPU's

[manty kuma]

I wish to print the call stacks of all the cpus. at a given time. How can i
do it?

for_each_cpu{
dump_stack() -> Some function like this available? or i should write my own
code?
...
}

Any pointers would help.

Thank you,
Sandeep
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Need help in printing call stacks for all CPU's

[Andreas Platschek]

Hi Sandeep,

This should be possible using ftrace without touching the code. I am not
sure how to trigger on a specific function but I think it should be
possible. Have a look at Documentation/trace/ftrace.txt

andi

On 11/21/2013 11:22 AM, manty kuma wrote:
> I wish to print the call stacks of all the cpus. at a given time. How
> can i do it?
>
> for_each_cpu{
> dump_stack() -> Some function like this available? or i should write
> my own code?
> ...
> }
>
> Any pointers would help.
>
> Thank you,
> Sandeep
>
>
> _______________________________________________
> Kernelnewbies mailing list
> Kernelnewbies at kernelnewbies.org
> http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies

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Need help in printing call stacks for all CPU's

[Fan Du]

echo l > /proc/sysrq-trigger

On 2013?11?21? 18:22, manty kuma wrote:
> I wish to print the call stacks of all the cpus. at a given time. How can i do it?
>
> for_each_cpu{
> dump_stack() -> Some function like this available? or i should write my own code?
> ...
> }
>
> Any pointers would help.
>
> Thank you,
> Sandeep
>
>
>
> _______________________________________________
> Kernelnewbies mailing list
> Kernelnewbies at kernelnewbies.org
> http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies

-- 
?????????

--fan fan

Need help in printing call stacks for all CPU's

[Fan Du]

echo l > /proc/sysrq-trigger

On 2013?11?21? 18:22, manty kuma wrote:
> I wish to print the call stacks of all the cpus. at a given time. How can i do it?
>
> for_each_cpu{
> dump_stack() -> Some function like this available? or i should write my own code?
> ...
> }
>
> Any pointers would help.
>
> Thank you,
> Sandeep
>
>
>
> _______________________________________________
> Kernelnewbies mailing list
> Kernelnewbies at kernelnewbies.org
> http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies

-- 
?????????

--fan fan