Re: Preempt-rt on 3.2.23 raspberry pi kernel

Nick Lott
2012-07-30T05:37:37Z

I have a complete kernel log of the same problem but on 3.16 with rt27.

http://www.raspberrypi.org/phpBB3/viewtopic.php?f=29&t=9311

I've not had time to go any further with this or update and test with a newer kerenel.

Hope this helps.

Nick Lott
http://www.brokentoaster.com/

On 29 Jul 2012, at 9:32PM, Jan Sommer wrote:

> Hello,
>
> This probably is related to the this thread
> http://comments.gmane.org/gmane.linux.rt.user/8424 but I don't know how to
> answer to it as I have just subscribed to the mailinglist.
> As Tom I used the 3.2.23 branch for the raspberry pi from bootc
> (http://www.bootc.net/projects/raspberry-pi-kernel/) and applied the
> rt-patch. Because Tom told about problems with the USB-driver I set up my
> system to mount the rootfs via NFS.
> The patched kernel boots up fine when using the voluntary, low latency and
> basic preempt option but fails to boot after compiling it with the
> preempt_full option.
> You can find a screenshot (literally ;-) ) of the last kernel
> output here: http://imageshack.us/photo/my-images/140/rpikernellog.jpg/
>
> It complains about a certain part of the code within rtmutex.c.
>
> As I'm fairly new to building kernel related things, does anyone has a
> suggestion what to do? The problem occurs in both versions of the patch
> (rt36 and rt37) and it does not matter if I want to mount the rootfs via
> sd-card or NFS (probably because the error appears even before).
> At the moment I don't have the chance to hook up a serial cable to the
> serial port as I don't have level converters.
>
>
> Best regards,
>
> Jan
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