No output from trace file after a few hours

[Daniel Doron]

Hi,

I built my module to probe a few system calls and functions. Nothing
fancy, no big work in it, just prints some data. Then I wrote a simple
python script to read data directly off the
/sys/kernel/debug/systemtap/mymodule/trace0 file (of course running as
sudo)
I run stap in Flight recorder mode.
After a few hours (varies from 8 to 20) I stop getting any output from
the module...
Any idea how to check why that is?
dmesg does not report anything unusual...

Thanks.
Daniel.