[ltt-dev] [patch 0/6] LTTng : use percpu variable for ltt_nesting

Mathieu Desnoyers mathieu.desnoyers at polymtl.ca
Wed Sep 3 11:46:10 EDT 2008


Jiaying found I was using a cache-line bouncing per-cpu variable to keep track
of nesting within lttng code (it detects infinite recursing caused by
instrumentation errors). Thanks to the Google them for this finding.

This patchset applies after each single patch in the patchset after the file
with the same prefix. It has been developed for 2.6.27-rc3, but should do fine
for earlier LTTng versions.


Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F  BA06 3F25 A8FE 3BAE 9A68

More information about the lttng-dev mailing list