From: Larry Kessler <kessler@us.ibm.com>
To: Jeff Garzik <jgarzik@pobox.com>
Cc: Chris Friesen <cfriesen@nortelnetworks.com>,
Rusty Russell <rusty@rustcorp.com.au>,
linux-kernel mailing list <linux-kernel@vger.kernel.org>,
Alan Cox <alan@lxorguk.ukuu.org.uk>,
cgl_discussion mailing list <cgl_discussion@osdl.org>,
evlog mailing list <evlog-developers@lists.sourceforge.net>,
Hien Nguyen <hien@us.ibm.com>,
James Keniston <kenistoj@us.ibm.com>,
Mike Sullivan <sullivam@us.ibm.com>
Subject: Re: [evlog-dev] Re: alternate event logging proposal
Date: Tue, 24 Sep 2002 13:27:58 -0700 [thread overview]
Message-ID: <3D90CACE.595EA229@us.ibm.com> (raw)
In-Reply-To: 3D90C670.90508@pobox.com
Jeff Garzik wrote:
>
> Chris Friesen wrote:
> > Also related is "how can userspace be notified of kernel events?". There
> > is no way for a userspace app to be notified that, for instance, an ATM
> > device got a loss of signal. The drivers print it out, but the
> > userspace app has no clue.
>
> (sorry for the second reply)
>
> To address your more general point, a general way to notify interested,
> credentialed (is that a word?) 3rd party processes of device events
> would indeed be useful. Since such events are essential out-of-band
> info, netlink might indeed be applicable.
Event Logging has both a command and an API for apps in user-space to
register for specific events (kernel or userspace). The user must have
read access to the log file and the proper credentials in the allow/deny
file scheme (that's modeled after crontab).
Larry Kessler
http://evlog.sourceforge.net/
next prev parent reply other threads:[~2002-09-24 20:24 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-09-24 1:54 [PATCH-RFC} 3 of 4 - New problem logging macros, plus template generation Larry Kessler
2002-09-24 2:12 ` Jeff Garzik
2002-09-24 5:47 ` Rusty Russell
2002-09-24 6:05 ` Jeff Garzik
2002-09-24 7:06 ` Rusty Russell
2002-09-24 7:23 ` Jeff Garzik
2002-09-24 7:30 ` Rusty Russell
2002-09-24 19:48 ` alternate event logging proposal Jeff Garzik
2002-09-24 19:57 ` Chris Friesen
2002-09-24 20:03 ` Jeff Garzik
2002-09-24 20:54 ` Tim Hockin
2002-09-24 22:32 ` Brad Hards
2002-09-24 23:31 ` Jeff Garzik
2002-09-24 23:37 ` Brad Hards
2002-09-24 23:59 ` Tim Hockin
2002-09-24 23:38 ` Tim Hockin
2002-09-25 0:09 ` Ben Greear
2002-09-25 0:47 ` Tim Hockin
2002-09-25 1:14 ` Brad Hards
2002-09-25 1:38 ` Tim Hockin
2002-09-24 20:09 ` Jeff Garzik
2002-09-24 20:27 ` Larry Kessler [this message]
2002-09-24 20:35 ` [evlog-dev] " Jeff Garzik
2002-09-24 21:11 ` Larry Kessler
2002-09-24 21:26 ` Jeff Garzik
2002-09-25 0:15 ` Larry Kessler
2002-09-24 21:27 ` Horst von Brand
2002-09-24 21:50 ` Larry Kessler
2002-09-25 14:44 ` Lars Marowsky-Bree
2002-09-24 20:54 ` [evlog-dev] " Daniel E. F. Stekloff
2002-09-24 21:04 ` Jeff Garzik
2002-09-30 22:43 ` Pavel Machek
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