From: Marc Singer <elf@buici.com>
To: Rik van Riel <riel@redhat.com>
Cc: Marc Singer <elf@buici.com>, Andrew Morton <akpm@osdl.org>,
wli@holomorphy.com, linux-kernel@vger.kernel.org
Subject: Re: vmscan.c heuristic adjustment for smaller systems
Date: Sun, 18 Apr 2004 17:39:47 -0700 [thread overview]
Message-ID: <20040419003947.GA15958@flea> (raw)
In-Reply-To: <Pine.LNX.4.44.0404182025290.10183-100000@chimarrao.boston.redhat.com>
On Sun, Apr 18, 2004 at 08:26:13PM -0400, Rik van Riel wrote:
> On Sat, 17 Apr 2004, Marc Singer wrote:
>
> > I thought I sent a message about this. I've found that the problem
> > *only* occurs when there is exactly one process running.
>
> BINGO! ;)
>
> Looks like this could be the referenced bits not being
> flushed from the MMU and not found by the VM...
Can you be a little more verbose for me? The ARM MMU doesn't keep
track of page references, AFAICT. How does a context switch change
this?
I have looked into the case where the TLB for an old page isn't being
flushed (by design), but I've been unable to fix the problem by
forcing a TLB flush whenever a PTE is zeroed.
prev parent reply other threads:[~2004-04-19 0:39 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-04-17 19:38 vmscan.c heuristic adjustment for smaller systems William Lee Irwin III
2004-04-17 21:29 ` Marc Singer
2004-04-17 21:33 ` William Lee Irwin III
2004-04-17 21:52 ` Marc Singer
2004-04-18 1:06 ` William Lee Irwin III
2004-04-18 5:05 ` Marc Singer
2004-04-17 23:21 ` Andrew Morton
2004-04-17 23:30 ` Marc Singer
2004-04-17 23:51 ` Andrew Morton
2004-04-18 0:11 ` Trond Myklebust
2004-04-18 0:23 ` Marc Singer
2004-04-18 3:37 ` Nick Piggin
2004-04-18 4:17 ` William Lee Irwin III
2004-04-18 4:41 ` Nick Piggin
2004-04-18 5:10 ` Marc Singer
2004-04-18 5:19 ` Nick Piggin
2004-04-18 5:35 ` Marc Singer
2004-04-18 5:41 ` Nick Piggin
2004-04-18 23:44 ` Marc Singer
2004-04-18 9:29 ` Russell King
2004-04-18 1:59 ` William Lee Irwin III
2004-04-18 3:53 ` Andrew Morton
2004-04-18 5:38 ` Marc Singer
2004-04-18 5:52 ` Andrew Morton
2004-04-18 6:15 ` Marc Singer
2004-04-19 0:26 ` Rik van Riel
2004-04-19 0:39 ` Marc Singer [this message]
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