[RFC] SystemTap FAQ

Srinivasa Ds srinivasa@in.ibm.com
Tue Feb 19 12:58:00 GMT 2008


William Cohen wrote:
> Hi Srinivasa,
> 
> Thanks for the FAQ. I have some comments about the FAQ (maybe some 
> comments on how SystemTap handles some of the things in FAQ).
> 
> 
> 1) Seems like systemtap should be able to handle lack of proper debuginfo
>    more clearly. It should be possible to distinguish between non-existent
>    debug information and incorrect/inconsistent debuginfo.
>    The strip files from the rpms have tags to debug file name.

    Let me go through the systemtap error messages in these situations and 
update the wiki.

> 
> 2) Why doesn't systemtap attempt to search for
>    /usr/modules/`uname -r`/build/vmlinux?

Done

> 
> 4) Also mention the -k option to save the resulting stap directory.

Already updated.

> 
> 17) For RHEL5 can use "yum --enablerepo=rhel-debuginfo" to get debuginfo.

Already updated.

> 
> 18) What happens when someone forgets the "-p4" option?  bz#2725 can
>     cause machine to crash. Are there going to be purpose built
>     options in systemtap to print out this information?

There is no specific option for listing blacklisted functions. I think
it is good to have this option.

Thanks
 Srinivasa DS




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