From: Andrew Morton <akpm@osdl.org>
To: Arjan van de Ven <arjanv@redhat.com>
Cc: AHERRMAN@de.ibm.com, viro@ftp.linux.org.uk, heicars2@de.ibm.com,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH resubmit] do_mount: reduce stack consumption
Date: Fri, 4 Nov 2005 10:37:43 -0800 [thread overview]
Message-ID: <20051104103743.16f0ee06.akpm@osdl.org> (raw)
In-Reply-To: <20051104174506.GA4720@devserv.devel.redhat.com>
Arjan van de Ven <arjanv@redhat.com> wrote:
>
> On Fri, Nov 04, 2005 at 09:42:12AM -0800, Andrew Morton wrote:
> > Andreas Herrmann <AHERRMAN@de.ibm.com> wrote:
> > >
> > > Obviously you missed the point that (depending on the compiler version,
> > > options etc.) do_move_mount() and do_add_mount() can be inlined.
> >
> > I think we found a way of preventing the 3.x compiler from doing that. Arjan,
> > do you recall where we ended up with that problem?
>
> it was mostly caused by -funit-at-a-time that caused 3.x to go haywire. You
> need to turn that off in general.
In that case, does s390 still have a problem that we need to be solving here?
(s390 doesn't implement CONFIG_DEBUG_STACK_USAGE. Suggest you do so, then
stick a dump_stack() into do_exit()).
(dm is still doing very risky things though)
next prev parent reply other threads:[~2005-11-04 18:38 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-11-04 15:53 Andreas Herrmann
2005-11-04 17:42 ` Andrew Morton
2005-11-04 17:45 ` Arjan van de Ven
2005-11-04 18:37 ` Andrew Morton [this message]
-- strict thread matches above, loose matches on Subject: below --
2005-11-04 10:50 Heiko Carstens
2005-11-04 11:48 ` Al Viro
2005-11-04 12:57 ` Heiko Carstens
2005-11-04 14:06 ` Al Viro
2005-11-04 22:03 ` Heiko Carstens
2005-11-04 16:48 ` Andrew Morton
2005-11-04 21:27 ` Heiko Carstens
2005-11-04 23:55 ` Adrian Bunk
2005-11-05 0:08 ` Andrew Morton
2005-11-05 1:15 ` cplk
2005-11-05 1:37 ` Andrew Morton
2005-11-05 5:37 ` Neil Brown
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