Tag Archives: linux

The mysterious stalled scp connections

Lately, I had some problems with stalling transfers when using scp, the file transfer tool for the SSH protocol and part of the OpenSSH suite. Here is a report on what happened, how I found the cause and how I applied the solution. Actually, this is a pretty lame story, but I just wanted to write it down anyway.

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Hauppauge WinTV HVR-1300 with Linux kernel 2.6.38

After the upgrade to Linux kernel 2.6.38, the boot process for my machine hang quite long while Populating /dev with existing devices through uevents. After investigations it turns out that the cx88 driver used for my Hauppauge WinTV HVR-1300 tv card was not correctly converted to the new mutex system while removing the BKL. This is being tracked in the kernel bugzilla as bug #31962.

Fortunately, there is a patch attached to the mentioned bug report which resolves the problem:

cd /usr/src/linux
wget -O cx88-2.6.38-fix-driver-deadlocks.patch 'https://bugzilla.kernel.org/attachment.cgi?id=53722'
patch -p1 < cx88-2.6.38-fix-driver-deadlocks.patch

[Edited on 2011-04-23: replaced patch 52902 with 53722]

After applying the patch, build and install your kernel as usual. But there are still some more problems with 2.6.38 related to tvtime. See also my next post.

I do not follow kernel development close enough to know in which git tree this has to show up to confirm if it has been merged yet. Hopefully this patch will make it into the next kernel release.

Erste Basteleien mit dem Oyo

Bereits seit Weihnachten besitze ich nun einen Oyo. Dabei handelt es sich um einen E-Book-Reader, der in Deutschland von Medion produziert und von Thalia vertrieben wird und international gibt es dieselbe Plattform von Qisda auch unter anderen Namen. Das Gerät ist ARMv5-basiert und es läuft bereits ein Linux-System darauf. Die mitgelieferte Oberfläche zum Betrachten von Büchern, Browser, Audio-Player usw. ist mit Qt/Embedded implementiert.

Es sollte daher ja möglich sein, auch andere Verwendungsmöglichkeiten für den Oyo zu erschließen (z.B. als Organizer mit Kalenderfunktion, als Fernbedienung mit einem mpd-Client, usw.).

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bitlbee over SSL using stunnel

What is this?

I prefer IRC as communication protocol for multi-user chat and instant messaging. To keep in contact with users of other protocols/clients I use BitlBee which is a gateway connecting other chat networks like Jabber/XMPP and ICQ to your own IRC server.

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