From: "Frank Ch. Eigler" <fche@redhat.com>
To: Paul Mundt <lethal@linux-sh.org>,
linux-kernel@vger.kernel.org,
Linus Torvalds <torvalds@linux-foundation.org>,
Mathieu Desnoyers <compudj@krystal.dyndns.org>,
Roland McGrath <roland@redhat.com>
Subject: Re: [PATCH] [RFC] tracehook: Hook in syscall tracing markers.
Date: Sun, 21 Sep 2008 21:28:41 -0400 [thread overview]
Message-ID: <20080922012841.GA6199@redhat.com> (raw)
In-Reply-To: <20080921021630.GA6443@linux-sh.org>
Hi -
> At kernel summit, the idea that syscall tracing was generally desirable
> for tracing was mentioned several times, as was the argument that kernel
> developers aren't placing markers in meaningful locations. This is a
> simple patch to try and do that for the syscall case.[...]
One problem with this is that a separate mechanism would be needed to
activate these tracehook_report_* calls in the first place: the
management of the per-task TIF_SYSCALL_TRACE flag. This is one of the
things the utrace API makes straightforward, in which case its own
native syscall reporting callbacks can be used directly.
- FChE
next prev parent reply other threads:[~2008-09-22 1:30 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-09-21 2:16 [PATCH] [RFC] tracehook: Hook in syscall tracing markers Paul Mundt
2008-09-22 1:12 ` KOSAKI Motohiro
2008-09-23 1:20 ` Mathieu Desnoyers
2008-09-22 1:28 ` Frank Ch. Eigler [this message]
2008-09-23 1:22 ` Mathieu Desnoyers
2008-09-26 10:42 ` Roland McGrath
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