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From: Marc-Christian Petersen <mcp@linux-systeme.de>
Organization: Linux-Systeme GmbH
To: Adrian Bunk <bunk@fs.tum.de>
Subject: Re: heavy Disk I/O and system stops reacting for seconds
Date: Sun, 21 Jul 2002 17:34:56 +0200
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On Sunday 21 July 2002 16:17, Adrian Bunk wrote:

Hi Adrian,

> On Sun, 21 Jul 2002, Marc-Christian Petersen wrote:
> > Hi there,
> >
> > I think someone else notices this too, but anyway, i write down my
> > experiences.
> >
> > I've tested 2.4.19rc[1|2|3], AC tree, AA tree, jam tree and mjc tree
> > All of them shows up the same behaviour. If i do some disk i/o, f.e.:
> >
> > tar xzpf linux-2.4.18.tar.gz; rm -rf linux-2.4.18
> >
> > the system stopps reacting while untar/ungzipping the file for more than
> > 5 seconds. Nothing but the mouse reacts. This does NOT occur with 2.4.18
> > and early 2.4.19-pre's ...
> >...
>
> <--  snip  -->
>
> I tried to start Gimp from the fvwm menu after I typed a letter - and
> Gimp has completed its startup before the letter arrived in the xterm.
for my tests this does not appear. System does nothing for some seconds, no 
keyboard input, no startup of programs, just nothing. Seems like flushing 
somewhat to disk.

I think i have the causer. I've downgraded ext3fs code to 2.4.18 code and 
those behaviour is gone! I think ext3fs needs a big deep review before 2.4.19 
gets final.

-- 
Kind regards
        Marc-Christian Petersen

http://sourceforge.net/projects/wolk

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