From: Andrea Arcangeli <andrea@suse.de>
To: Robert Macaulay <robert_macaulay@dell.com>
Cc: Linus Torvalds <torvalds@transmeta.com>,
Rik van Riel <riel@conectiva.com.br>,
Craig Kulesa <ckulesa@as.arizona.edu>,
linux-kernel@vger.kernel.org, Bob Matthews <bmatthews@redhat.com>,
Marcelo Tosatti <marcelo@conectiva.com.br>
Subject: Re: highmem deadlock fix [was Re: VM in 2.4.10(+tweaks) vs. 2.4.9-ac14/15(+stuff)]
Date: Fri, 28 Sep 2001 04:24:17 +0200 [thread overview]
Message-ID: <20010928042417.J14277@athlon.random> (raw)
In-Reply-To: <20010928014720.Z14277@athlon.random> <Pine.LNX.4.33.0109272108400.29056-100000@ping.us.dell.com>
In-Reply-To: <Pine.LNX.4.33.0109272108400.29056-100000@ping.us.dell.com>; from robert_macaulay@dell.com on Thu, Sep 27, 2001 at 09:12:25PM -0500
On Thu, Sep 27, 2001 at 09:12:25PM -0500, Robert Macaulay wrote:
> Thanks Andrea. I'll see if we can repeat the 0-page alloc again.
Ok, it is possible the 0-page alloc failed because NOHIGHIO was
disabled, Linus's fix being less finegrined than mine could also lead
more easily to 0-page alloc failed.
However failing bounce-allocation is not important since we have the
reserved pool for those allocations. Not having to use the reserved
pool only allows an higher amount of I/O in parallel. This is why I said
we could have dropped the NOHIGHIO logic in first place if we wanted to
go the non finegrined way.
Andrea
next prev parent reply other threads:[~2001-09-28 2:24 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-09-26 13:38 VM in 2.4.10(+tweaks) vs. 2.4.9-ac14/15(+stuff) Craig Kulesa
2001-09-26 14:03 ` Andrea Arcangeli
2001-09-26 14:23 ` Rik van Riel
2001-09-26 14:49 ` Andrea Arcangeli
2001-09-26 18:17 ` Robert Macaulay
2001-09-26 18:36 ` Andrea Arcangeli
2001-09-27 22:13 ` highmem deadlock fix [was Re: VM in 2.4.10(+tweaks) vs. 2.4.9-ac14/15(+stuff)] Andrea Arcangeli
2001-09-27 22:55 ` J . A . Magallon
2001-09-27 23:16 ` Linus Torvalds
2001-09-27 23:18 ` Linus Torvalds
2001-09-27 23:37 ` Andrea Arcangeli
2001-09-27 23:51 ` Rik van Riel
2001-09-28 1:26 ` Andrea Arcangeli
2001-09-28 1:28 ` Linus Torvalds
2001-09-27 23:47 ` Andrea Arcangeli
2001-09-28 0:03 ` Linus Torvalds
2001-09-28 0:11 ` Andrea Arcangeli
2001-09-28 2:12 ` Robert Macaulay
2001-09-28 2:24 ` Andrea Arcangeli [this message]
2001-09-28 13:36 ` Robert Macaulay
2001-09-28 14:02 ` LILO causes segmentation fault and panic [was Re: highmem deadlock fix] Robert Macaulay
2001-09-28 0:08 ` highmem deadlock fix [was Re: VM in 2.4.10(+tweaks) vs. 2.4.9-ac14/15(+stuff)] Andrea Arcangeli
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