Hey William,
There are a variety of reasons why dtrace(1M) would be unable to grab the
process -- for example, if the process you identified doesn't exist or if you
don't have permissions to it. Try this:
truss -t open dtrace -s adc.d 24930
... you might see output like this:
...
open("/proc/24930/as", O_RDONLY|O_EXCL) Err#2 ENOENT
open("/proc/24930/as", O_RDONLY) Err#2 ENOENT
Adam
On May 7, 2010, at 11:43 AM, William Reich wrote:
> I have a very simple dtrace script ( shown below ).
> This script works on simple programs just fine.
>
> Now I want to use this script on a large C++ executable.
> The executable is 8.5 meg in size on a x86 platform.
> This executable has more than 10 threads in it.
>
> I try to execute that the dtrace script and I get this error –
>
> ./adc.d 24930
> dtrace: failed to compile script ./adc.d: line 7: failed to grab process
> 24930
>
> What is the error really trying to tell me ?
>
> wr
> #######################
>
> #!/usr/sbin/dtrace -qs
> BEGIN
> { flag = 1 ; }
>
> END
> { flag = 0 ; }
> pid$1:::entry
> {
> self->t[probefunc] = timestamp ;
> }
>
> pid$1:::return
> /self->t[probefunc] && flag /
> { this->time = timestamp - self->t[probefunc] ;
> @[probefunc] = avg(this->time) ;
> self->t[probefunc] = 0 ;
> }
>
> _______________________________________________
> dtrace-discuss mailing list
> dtrace-discuss@opensolaris.org
--
Adam Leventhal, Fishworks http://blogs.sun.com/ahl
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