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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <4D7E89E7.3080505@xmsnet.nl>
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

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/