On 8/21/19 9:08 AM, mike tancsa wrote:
> On 8/21/2019 12:00 PM, John Baldwin wrote:
>> dtrace -n 'fbt::_gone_in:entry { @counts[curthread->td_proc->p_comm] =
>> count()'
>
> Thanks, I am not familiar with dtrace at all. This command gives a
> syntax error
>
> 0(cage)# dtrace -n 'fbt::_gone_in:entry {
> @counts[curthread->td_proc->p_comm] = count()'
> dtrace: invalid probe specifier fbt::_gone_in:entry {
> @counts[curthread->td_proc->p_comm] = count(): syntax error near end of
> input
> 1(cage)#
Oops, I forgot the closing }. First, do "dtrace -l | grep _gone_in" to make
sure dtrace is loaded. You should see something like this:
# dtrace -l | grep _gone_in
87003 fbt kernel _gone_in entry
87004 fbt kernel _gone_in return
98682 fbt kernel _gone_in_dev entry
98683 fbt kernel _gone_in_dev return
Then this should work:
# dtrace -n 'fbt::_gone_in:entry { @counts[curthread->td_proc->p_comm] =
count() }'
dtrace: description 'fbt::_gone_in:entry ' matched 1 probe
--
John Baldwin
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