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duffy
2006 Sep 20
3
committing multiple speculations in a single probe
While using DTrace to track down a problem recently, we came across an
unexpected restriction: the compiler will not permit different
speculations to be committed in the same instance of a probe identifier.
For instance, consider the following useless D script:
#!/usr/sbin/dtrace -s
#pragma D option nspec=2
BEGIN {
spec1 = speculation();
spec2 = speculation();
}
END {