Date: Thu, 22 Aug 2019 15:51:09 -0700 From: John Baldwin <jhb@FreeBSD.org> To: Mike Tancsa <mike@sentex.net>, freebsd-stable@freebsd.org Subject: Re: svn commit: r351246 - in stable: 11/sys/opencrypto 12/sys/opencrypto Message-ID: <a7a45784-5376-514a-026a-f6ba3cbcba9b@FreeBSD.org> In-Reply-To: <d249f301-a7dd-4ead-7599-026096c439cc@sentex.net> References: <201908200130.x7K1UajV079446@repo.freebsd.org> <c31bca3a-dd62-d828-5f57-30b4e210f084@sentex.net> <3101bd14-316a-baaa-6269-297903c45f23@FreeBSD.org> <eb53fa90-5dfb-8341-f402-d4b2f7a71b5e@sentex.net> <a2d1066a-a6e4-9316-4d5b-0bbe46e18c11@FreeBSD.org> <d249f301-a7dd-4ead-7599-026096c439cc@sentex.net>
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On 8/21/19 5:47 PM, Mike Tancsa wrote:
> On 8/21/2019 6:38 PM, John Baldwin wrote:
>> 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
>>
> Thanks!
>
> # dtrace -l | grep _gone_in
> 15632 fbt kernel _gone_in entry
> 22693 fbt kernel _gone_in_dev entry
>
> # dtrace -n 'fbt::_gone_in:entry { @counts[curthread->td_proc->p_comm] =
> count() }'
> dtrace: description 'fbt::_gone_in:entry ' matched 1 probe
>
> However, It doesnt show anything after that even as I get the
> deprecation messages in dmesg
Can you hit Ctrl-C after seeing some of the messages? This trace won't
show any results until you exit dtrace.
--
John Baldwin
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