From: compudj@krystal.dyndns.org (Mathieu Desnoyers)
Subject: [ltt-dev] Another question on sys_futex
Date: Fri, 5 Dec 2008 07:29:02 -0500 [thread overview]
Message-ID: <20081205122902.GB25816@Krystal> (raw)
In-Reply-To: <8d94e9280812040457y14f2777ds704f54c105b19191@mail.gmail.com>
* Gian Lorenzo Meocci (glmeocci at gmail.com) wrote:
> Hi all,
>
> I have another problem. If I look in the LTTng (using lttv) I obtain
> something like this:
>
> kernel_syscall_entry: 2059926.457278322 (/tmp/trace1/cpu_0), 22193,
> 22155, ./fftw, , 22189, 0x0, SYSCALL { ip = 0xffffe424, syscall_id =
> 240 [sys_futex+0x0/0x120] }
>
> This is a sys_futex call entry, but I don't know if op is a FUTEX_WAIT
> or FUTEX_WAKE. What can I do to obtain this information?
>
I guess you'll have to start adding markers in the futex code as a
temporary solution to extract this information.
Mathieu
> thanks again,
>
> --
> Ing. Gian Lorenzo Meocci
> http://www.meocci.it
>
> _______________________________________________
> ltt-dev mailing list
> ltt-dev at lists.casi.polymtl.ca
> http://lists.casi.polymtl.ca/cgi-bin/mailman/listinfo/ltt-dev
>
--
Mathieu Desnoyers
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68
prev parent reply other threads:[~2008-12-05 12:29 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-12-04 12:57 Gian Lorenzo Meocci
2008-12-05 12:29 ` Mathieu Desnoyers [this message]
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