[PATCH] RTEMS: Increase MSIZE from 128 to 256

Sebastian Huber sebastian.huber at embedded-brains.de
Fri Nov 1 11:44:52 UTC 2013

On 11/01/2013 12:17 AM, Joel Sherrill wrote:
> My original version of this change wrapped it in an RTEMS new stack macro.

Yes, but your original patch is not a huge help since you can simpley use

#define MSIZE 123
#include <sys/param.h>
#include <sys/mbuf.h>

Both ways are a bad hack and can lead to very hard to debug problems if 
two modules work with mbufs of different sizes.

> Chris Johns<chrisj at rtems.org>  wrote:
> On 1/11/2013 12:11 am, Sebastian Huber wrote:
>> >This change is necessary to support IPv6.  It affects applications using
>> >the current network stack of RTEMS since this will half the mbuf count
>> >in the system.
> I am not sure about this change going into 4.11. If the new stack went
> in as well that is a different story.
> Because of the long time frame between 4.10 and 4.11 (yes some people
> have got married and had children), users are having to using 4.11.
> Can this sit out of the changes until 4.11 and then go in ?

Ok, we can wait for the 4.11 release.

Sebastian Huber, embedded brains GmbH

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