Re: 2.6.4 on Alpha uninterruptible sleep of processes

From: Ivan Kokshaysky
Date: Mon Mar 15 2004 - 19:34:35 EST

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? :-)

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