WARNING: Missing unwind data for module, rerun with 'stap -d aaa_linux'

[William Cohen]

On 04/19/2011 09:58 PM, Zhiwei Ying wrote:
> Hi,
> 
> I saw a lot of such warning msgs when tried to print backtrace from a
> module. How can I remove such warning message? Do I need put some
> compilation options to gcc?
> 
> Thanks,
> Zhiwei

Zhiwei,

If you are running a newer version of systemtap (1.3 or newer) you can use the "--all-modules" option on the stap command line to include the needed information for the backtraces.

-Will