Re: Getting stack trace from a different CPU core


Yonghong Song
 

Could you describe your use case? Getting stack trace from a different
CPU involves an
IPI (inter-processor interrupt) which is beyond bpf. But typically you
could run your programs
on both cpus and coordinate through maps to dump stack trace only
under certain conditions.

On Tue, Dec 12, 2017 at 6:26 AM, Nair, Reena via iovisor-dev
<iovisor-dev@...> wrote:
Hello,


Is it possible to get stack trace from a different CPU core with eBPF?


Thank you,

Reena


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