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No output from trace file after a few hours
- From: Daniel Doron <danielmeirdoron at gmail dot com>
- To: systemtap at sourceware dot org
- Date: Thu, 15 Jun 2017 10:10:27 +0300
- Subject: No output from trace file after a few hours
- Authentication-results: sourceware.org; auth=none
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.