From: Arador <diegocg@teleline.es>
To: "Martin J. Bligh" <mbligh@aracnet.com>, linux-mm@kvack.org
Subject: Re: 2.5.44-mm3: X doesn't work
Date: Thu, 24 Oct 2002 00:51:18 +0200 [thread overview]
Message-ID: <20021024005118.0fb9d427.diegocg@teleline.es> (raw)
In-Reply-To: <447940000.1035403802@flay>
On Wed, 23 Oct 2002 13:10:02 -0700
"Martin J. Bligh" <mbligh@aracnet.com> wrote:
> CONFIG_SHAREPTE=y
> CONFIG_PREEMPT=y
>
> Want to try it again with the following?
> 1. CONFIG_SHPTE set, CONFIG_PREEMPT not set
> 2. CONFIG_SHPTE unset, CONFIG_PREEMPT set
only tested the 2 case. It works. I've not tested 1, perhaps
i won't test, recompile a kernel takes a loong time and i assume that
the bug cames from CONFIG_SHAREPTE.
A strange thing: While testing the 2 case i've found the following situation
I started Xwindows, while i started recompiling a kernel (233 mhz 32 Mb ram).
Then, disk became mad as it'd be swapping. Looking with top, i found kswapd
working ~20% of the cpu. The one only strange thing i did appart from starting
Xwindows was set to 100 /proc/sys/vm/swapiness, then 0, then the default 60.
(I've tried booting and changing it again and i doesn't happen anything).
While i was lookink at kswapd i set swapiness again to 100 and went up to ~40% of the cpu.
Then i tried to kill all processes. When idle, kswapd was eating around 5% of the cpu.
(swapiness at 60). Every ls, cat...everything made kswapd to eat a lot of cpu (and
swapping things it seems, there was a lot of disk activity)
I wish to have vmstat info but i don't have a proper procps. I'll collect more
data and try to reproduce again if needed.
Diego Calleja
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prev parent reply other threads:[~2002-10-23 22:51 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-10-23 18:58 Arador
2002-10-23 20:10 ` Martin J. Bligh
2002-10-23 20:59 ` Ed Tomlinson
2002-10-23 21:10 ` Dave McCracken
2002-10-23 21:18 ` Ed Tomlinson
2002-10-23 22:51 ` Arador [this message]
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