whitelist test of current tapset and all kernel.function("*") functions

["Gui,Jian" <guij at cn dot ibm dot com>]

Hi,

I updated the whitelist case
(http://sourceware.org/ml/systemtap/2006-q4/msg00143.html)
and tested the probe points in current tapset and kernel functiosns.

Here are the results on my ppc64 box:

For current tapset:
   920 probes.all          -- initial probe points to be tested
     0 probes.failed       -- causing crash and unrecorded in probe.out
   455 probes.passed       -- whitelist,for those recorded at least once
   465 probes.untriggered  -- probed without crash but unrecorded

For all kernel.function("*") probe points:
  13119 probes.all
    100 probes.failed (more iterations shows "_read_lock" causes this crash)
   2415 probes.passed
  10604 probes.untriggered

Usages:
 0) Please jump to 6) directly if you use all default settings
 1) Define your list of probe points in a file named "probes.all";
    otherwise, it will be automatically extracted from
      stap -p2 -e 'probe kernel.function("*"){}
 2) Define your own workloads by changing the "benchs" list variable;
    otherwise, several LTP testcases will be used
 3) Define how may times you want the test to be iterated by changing
    MAX_RUNNING_LEVEL variable; otherwise, 3 is the default
 4) Define the group size for different iteration level by changing
    proper_current_size() function; otherwise, they will be set in
    a decreasing order based on the length of probes.all
 5) Remove /stp_genwhitelist_running if you want to start a test from
    the beginning after a system crash
 6) Start a test:
      runtest whitelist.exp

The coverage of probe points is still a problem. For tapset, there
are a lot of syscalls and NFS/RPC server probe points untriggered.
The total coverage is 50% for tapset and 18.4% for all kernel
functions(probe points in bug 3441 are removed).

Any idea? Thanks.

-Gui,Jian

Attachment: gen_whitelist.tgz
Description: Binary data