George Neville-Neil <g...@freebsd.org> wrote:
> I have found that the dtrace command on FreeBSD, in both STABLE and HEAD,
> does not print out
> aggregations properly, likely due to the difference in how Solaris and
> FreeBSD signals work.
> For example, this one liner will give no output:
>
> sudo dtrace -n 'syscall:::entry { @[execname] = quantize(arg0); }'
Acutally it works when not using sudo or when killing dtrace by
sending a SIGTERM instead of using the keyboard. Of course it's still
a bug.
> While is should print this:
>
> dtrace -n 'syscall:::entry { @[execname] = quantize(arg0); }'
> dtrace: description 'syscall:::entry ' matched 1028 probes
> ^C
>
> nrpe2
> value ------------- Distribution ------------- count
> 2 | 0
> 4 |@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ 12
> 8 | 0
>
> sshd
> value ------------- Distribution ------------- count
> 0 | 0
> 1 |@@@@@@@@@@ 5
> 2 |@@@@@@@@@@@@@@ 7
> 4 | 0
> 8 |@@@@@@@@@@@@@@@@ 8
> 16 | 0
>
> etc.
>
> I have made the following patch, but I'd be interested in people testing and
> commenting on it.
I do not know whether dtrace or sudo is responsible for the problem,
but I can confirm that the patch works for me. Thanks a lot.
Fabian
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