stap blocked (at stapio)

[Wenji Huang]

Peter Teoh wrote:
> stapio:send_unwind_data:64 module sd_mod
> stapio:get_module_unwind_data:52 module sd_mod returns 3896
> stapio:send_unwind_data:64 module sg
> stapio:get_module_unwind_data:52 module sg returns 3288
> stapio:send_unwind_data:64 module sky2
> stapio:get_module_unwind_data:52 module sky2 returns 4416
> 
> When running many of the stap scripts, it blocked here as above.  What
> are the possible reason?   This is git-updated up to latest.
> (8a49d1d23c77033bf98fc7b139b37f83e3e0eb49).
> 
> This blocked:
> 
> probe kernel.function("schedule")
> {
> printf("Called %s\n", probefunc());
> print_backtrace();
> }
> 
I just have a quick test, the above script works fine in my x86_64 
box(2.6.25-rc5).
Could you provide more info about your environment and verbose output?

Best regards,
Wenji