maxactive(NNNN) usage

Jey Jay rjayavrp2@gmail.com
Tue Jan 7 00:45:00 GMT 2014


Frank Ch. Eigler <fche@redhat.com> writes:

> This is working here on various Fedora/RHEL platforms and on various
> systemtap versions.  Perhaps the data generated by stap-report might
> help point a finger at a kernel or systemtap version or configuration
> problem.

There was a problem in kprobes. Now this works fine. thanks for the support.

- Jeyaram


On Tue, Jan 7, 2014 at 1:46 AM, Frank Ch. Eigler <fche@redhat.com> wrote:
> Jey Jay <rjayavrp2@gmail.com> writes:
>
>> [...]
>> Below is a sample script(maxactive included).
>> [...]
>> ----- probe hit report:
>> kernel.function("vfs_read@fs/read_write.c:353").call,
>> (maxactive05.stp:6:1), hits: 18, cycles: 0min/0avg/0max, from:
>> kernel.function("vfs_read").call, index: 0
>
>> But there is no response for .return. i.e I'm expecting
>> printf("Testing.... Jay") statement to be executed. Any guidance
>> will help me lot..  Jeyaram
>
> This is working here on various Fedora/RHEL platforms and on various
> systemtap versions.  Perhaps the data generated by stap-report might
> help point a finger at a kernel or systemtap version or configuration
> problem.
>
> - FChE



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