linux-kernel - 2.6.38-rc echo 3 > /proc/sys/vm/drop_caches repairs mplayer distortions

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Date:	Mon, 14 Mar 2011 22:34:31 +0100
From:	Hans de Bruin <jmdebruin@...net.nl>
To:	linux-kernel@...r.kernel.org
Subject: 2.6.38-rc echo 3 > /proc/sys/vm/drop_caches repairs mplayer distortions

Since the start of the start of 2.6.38-rc I sporadic have problems with 
mplayer. A mpeg stream sometimes gets distorted when mplayer starts. An 
example is at http://www.xs4all.nl/~bruinjm/mplayer.png . I do not know 
how to trigger the behaviour, so bissecting is not possible. Since 
yesterday however I found a way to 'repair' mplayer:

echo 3 > /proc/sys/vm/drop_caches

This repairs mplayer while it is running. My latop is runs on nfsroot, 
and the mpegstreams are payed over nfs or http. I can have two instances 
of mplayer running the same mpeg stream over nfs or http with only one 
instance distorded.

-- 
Hans

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