From: Andrea Arcangeli <andrea@suse.de>
To: Marcelo Tosatti <marcelo@conectiva.com.br>
Cc: Linus Torvalds <torvalds@transmeta.com>,
linux-kernel@vger.kernel.org, akpm@zip.com.au
Subject: Re: 2.4.10pre11 vm rewrite fixes for mainline inclusion and testing
Date: Tue, 18 Sep 2001 23:11:50 +0200 [thread overview]
Message-ID: <20010918231150.H720@athlon.random> (raw)
In-Reply-To: <Pine.LNX.4.21.0109181627340.7836-100000@freak.distro.conectiva> <Pine.LNX.4.21.0109181636200.7836-100000@freak.distro.conectiva>
In-Reply-To: <Pine.LNX.4.21.0109181636200.7836-100000@freak.distro.conectiva>; from marcelo@conectiva.com.br on Tue, Sep 18, 2001 at 04:39:34PM -0300
On Tue, Sep 18, 2001 at 04:39:34PM -0300, Marcelo Tosatti wrote:
>
>
> On Tue, 18 Sep 2001, Marcelo Tosatti wrote:
>
> >
> >
> > On Tue, 18 Sep 2001, Andrea Arcangeli wrote:
> >
> > (testing now)
>
> Well, unfortunately:
I'm not so pessimistic, I was pretty sure it would have worked out.
>
> Sep 18 17:59:01 matrix PAM_pwdb[842]: (sshd) session opened for user
> marcelo by (uid=0)
> Sep 18 17:59:27 matrix kernel: __alloc_pages: 0-order allocation failed
> (gfp=0x20/0) from c012c5fe
> Sep 18 17:59:28 matrix sshd[860]: Accepted password for marcelo from
> 10.0.17.22 port 1020
> Sep 18 17:59:29 matrix PAM_pwdb[860]: (sshd) session opened for user
> marcelo by (uid=0)
> Sep 18 17:59:42 matrix sshd[873]: Accepted password for marcelo from
> 10.0.17.22 port 1021
> Sep 18 17:59:43 matrix PAM_pwdb[873]: (sshd) session opened for user
> marcelo by (uid=0)
> Sep 18 17:59:48 matrix PAM_pwdb[875]: (su) session opened for user root by
> marcelo(uid=719)
> Sep 18 17:59:55 matrix kernel: __alloc_pages: 0-order allocation failed
> (gfp=0x20/0) from c012c5fe
That's just a GREAT log: those are GFP_ATOMIC allocations, all is _more_
than _perfect_ in the above log.
> I really think we need the "fail: loop again: try_to_free_pages()" logic,
What do you want to do with GFP_ATOMIC? we cannot do anything at the
moment unless you want to make an atomic list that we can free from
atomic context, I thought about something like that but I guess we can
do it after 2.4.11 (possibly in 2.4.x, it doesn't sound a showstopper).
> Andrea: If there is not enough memory we HAVE to block in the page
> reclaiming work.
we obviously cannot block with GFP_ATOMIC.
Andrea
next prev parent reply other threads:[~2001-09-18 21:12 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-09-18 20:43 2.4.10pre11 vm rewrite fixes for mainline inclusion and testing Andrea Arcangeli
2001-09-18 19:29 ` Marcelo Tosatti
2001-09-18 19:39 ` Marcelo Tosatti
2001-09-18 21:11 ` Andrea Arcangeli [this message]
2001-09-18 21:26 ` Andrea Arcangeli
2001-09-19 6:21 ` Andrew Morton
2001-09-20 5:58 ` Andrew Morton
2001-09-20 6:11 ` Andrea Arcangeli
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