From: Greg KH <greg@kroah.com>
To: kernel <linux-kernel@vger.kernel.org>
Subject: Re: export of sys_call_table
Date: Thu, 3 Oct 2002 15:15:25 -0700 [thread overview]
Message-ID: <20021003221525.GA2221@kroah.com> (raw)
In-Reply-To: <20021003153943.E22418@openss7.org>
On Thu, Oct 03, 2002 at 03:39:43PM -0600, Brian F. G. Bidulock wrote:
> I see that RH, in their infinite wisdom, have seen fit to remove
> the export of sys_call_table in 8.0 kernels breaking any loadable
> modules that wish to implement non-implemented system calls such
> as LiS's or iBCS implementation of putmsg/getmsg.
>
> sys_call_table is exported in current 2.4 and 2.5 kernels.
As of 2.5.40bk it is now also not exported, which is a good thing.
> Until now, loadable modules have been able to just overwrite
> the non implemented point in the sys_call_table when they load
> and putting it back when they unload. There is no mechanism
> for registering system calls.
That's a racy, easily breakable thing to do. Don't do it.
> What is the kernel.org take on this?
It is a good thing that the sys_call_table is now not exported.
thanks,
greg k-h
next prev parent reply other threads:[~2002-10-03 22:12 UTC|newest]
Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-10-03 21:39 export of sys_call_table Brian F. G. Bidulock
2002-10-03 22:02 ` Alan Cox
2002-10-03 23:06 ` Brian F. G. Bidulock
2002-10-04 9:10 ` Arjan van de Ven
2002-10-04 11:19 ` Brian F. G. Bidulock
2002-10-04 11:31 ` Arjan van de Ven
2002-10-04 11:55 ` Brian F. G. Bidulock
2002-10-04 13:00 ` Alan Cox
2002-10-03 23:10 ` Michal Jaegermann
2002-10-04 0:32 ` Andy Pfiffer
2002-10-04 9:20 ` Arjan van de Ven
2002-10-06 14:17 ` Kasper Dupont
2003-01-03 8:28 ` Eric W. Biederman
2002-10-04 21:06 ` David S. Miller
2002-10-04 21:44 ` Brian F. G. Bidulock
2002-10-12 5:43 ` Eric Blade
2002-10-03 22:14 ` Robert Love
2002-10-03 22:23 ` Robert Love
2002-10-03 22:24 ` Patrick Mochel
2002-10-03 22:15 ` Greg KH [this message]
2002-10-03 22:27 ` Dave Jones
2002-10-03 22:27 ` Robert Love
2002-10-03 22:58 ` John Levon
2002-10-03 23:10 ` Alexander Viro
2002-10-03 23:14 ` John Levon
2002-10-04 4:05 ` Muli Ben-Yehuda
2002-10-04 4:46 ` Greg KH
2002-10-04 4:53 ` Muli Ben-Yehuda
2002-10-03 23:35 ` Dave Jones
2002-10-03 23:50 ` John Levon
2002-10-04 0:17 ` Brian F. G. Bidulock
[not found] ` <mailman.1033691043.6446.linux-kernel2news@redhat.com>
2002-10-04 4:03 ` Pete Zaitcev
2002-10-04 5:32 ` Brian F. G. Bidulock
2002-10-04 11:42 ` John Levon
2002-10-04 12:03 ` Brian F. G. Bidulock
2002-10-04 13:02 ` Alan Cox
2002-10-04 17:36 ` Pete Zaitcev
2002-10-05 1:39 ` John Levon
2002-10-04 13:58 ` Christoph Hellwig
2002-10-04 15:15 ` Brian F. G. Bidulock
2002-10-04 15:28 ` Christoph Hellwig
2002-10-04 16:19 ` Brian F. G. Bidulock
2002-10-04 16:25 ` Christoph Hellwig
[not found] <20021003153943.E22418@openss7.org.suse.lists.linux.kernel>
[not found] ` <1033682560.28850.32.camel@irongate.swansea.linux.org.uk.suse.lists.linux.kernel>
[not found] ` <20021003170608.A30759@openss7.org.suse.lists.linux.kernel>
[not found] ` <1033722612.1853.1.camel@localhost.localdomain.suse.lists.linux.kernel>
[not found] ` <20021004051932.A13743@openss7.org.suse.lists.linux.kernel>
2002-10-04 13:01 ` Andi Kleen
2002-10-04 13:11 ` Brian F. G. Bidulock
2002-10-04 13:15 ` Andi Kleen
2002-10-04 13:22 ` Brian F. G. Bidulock
2002-10-04 14:11 ` Andi Kleen
2002-10-04 14:31 ` Brian F. G. Bidulock
[not found] ` <20021003221525.GA2221@kroah.com.suse.lists.linux.kernel>
[not found] ` <20021003222716.GB14919@suse.de.suse.lists.linux.kernel>
[not found] ` <1033684027.1247.43.camel@phantasy.suse.lists.linux.kernel>
[not found] ` <20021003233504.GA20570@suse.de.suse.lists.linux.kernel>
[not found] ` <20021003235022.GA82187@compsoc.man.ac.uk.suse.lists.linux.kernel>
[not found] ` <mailman.1033691043.6446.linux-kernel2news@redhat.com.suse.lists.linux.kernel>
[not found] ` <200210040403.g9443Vu03329@devserv.devel.redhat.com.suse.lists.linux.kernel>
[not found] ` <20021003233221.C31444@openss7.org.suse.lists.linux.kernel>
[not found] ` <20021004133657.B17216@devserv.devel.redhat.com.suse.lists.linux.kernel>
2002-10-04 18:14 ` Andi Kleen
2002-10-04 18:46 ` Alan Cox
2002-10-04 18:45 ` Alexander Viro
2002-10-04 19:15 ` Brian F. G. Bidulock
2002-10-04 19:26 ` Andi Kleen
2002-10-04 19:37 ` Pete Zaitcev
2002-10-04 19:43 ` Robert Love
2002-10-04 22:21 ` David S. Miller
2002-10-04 22:41 ` Brian F. G. Bidulock
2002-10-04 22:38 ` David S. Miller
-- strict thread matches above, loose matches on Subject: below --
2002-10-04 21:54 Mark Veltzer
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