----- Original Message -----
 Hi Dave,
 I agree with your opinion,the first suggestion (1) seems better.I
 have already accepted
 your specification and modified the patch. Specific modification as
 follows:
 (1)    The option “-t” is accepted, while the option "-c" was
 abandoned.
 (2)    Turn key word '*_clock' into '*_timestamp'.
 (3)    Add information about active task on each cpu,like this:
 CPU 0: 67393251944103
 [67393251944103]  PID: 14776  TASK: ea54aab0  COMMAND: "crash"
 CPU 1: 66789719628339
 [67393251858710]  PID: 14769  TASK: f4bdc030  COMMAND: "crash"
 Do you have any other suggestion or requirement? 
No, that's fine.
I did make a slight change to the output display so that the task's
timestamp value is directly under the cpu's value and without the
brackets, making a comparison much easier.  I also re-worded the help
page description, and added the display of the new rq_timestamp offset
value in dump_offset_table().
The patch is queued for crash-6.0.7.
Thanks,
  Dave