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Date: Tue, 16 Mar 2004 02:00:36 +0300
From: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
To: Marc Giger <gigerstyle@gmx.ch>
Cc: linux-kernel@vger.kernel.org
Subject: Re: 2.6.4 on Alpha uninterruptible sleep of processes
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In-Reply-To: <20040315190249.19263f4f@vaio.gigerstyle.ch>; from gigerstyle@gmx.ch on Mon, Mar 15, 2004 at 07:02:49PM +0100
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On Mon, Mar 15, 2004 at 07:02:49PM +0100, Marc Giger wrote:
> How long did you let your machine run?

$ uptime
 01:40:40 up 3 days,  6:31,  4 users,  load average: 25.23, 24.16, 23.73

It's with unpatched 2.6.4. Before that the machine was running 2.6.1-rc1
for 2 months.

> In my case, it has to run the whole night until it happens.

Perhaps there is a memory leak somewhere, and your systems just
starts swapping.

> I don't know if it helps but I think the
> first processes that are in uninterruptible sleep are apache and mysql.
> Also, as you can see in my first e-mail (ps -aux output), the pdflush
> and kswapd0 are in in uninterruptible sleep state.

Well, I can see something like that when I compile kernel with "make -j 15".
The system starts swapping like crazy, most processes are in the D-state
waiting for disk, but all goes back to normal after compilation is finished.
What's wrong with it? :-)

Ivan.