Andriy Gapon <[email protected]> wrote: > It seems that the $subj is missing :-) > In my environment that causes many functions to not have fbt return probe, > because function body decoding fails before 'ret' is found. > > Here is my attempt at fixing the problem: > http://people.freebsd.org/~avg/fbt-nop.patch > Reviews and suggestions are welcome.
The patch seems to reduce the number of missing fbt return probes by about 50% for me. Without the patch: fk@r500 /usr/src $sudo dtrace -ln fbt::: | grep -c entry 23395 fk@r500 /usr/src $sudo dtrace -ln fbt::: | grep -c return 16739 With the patch (and updated kernel sources): fk@r500 ~ $sudo dtrace -ln fbt::: | grep -c entry 23409 fk@r500 ~ $sudo dtrace -ln fbt::: | grep -c return 19879 Thanks Fabian
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