Re: 2.6.4 on Alpha uninterruptible sleep of processes

[Marc Giger]

> 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.

No, that isn't the case. The memory usage stays constant and it has no swap
used at all.

> 
> > 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? :-)

Nothing when it would switch back to a normal state.:-) As I already
mentioned when processes begins to hang, all file operations like tail -f
/var/log/messages etc. then hangs too:-( Not even a login or a proper shutdown will
work. I have to press CTRL-SYSRQ-X

So I think it is something wrong with 2.6 on alpha:-) I have absolutely no
problems with 2.4.

Regards

Marc

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