Error With Networking when Upgrading

Chris Johns chrisj at
Thu Jun 10 22:42:17 UTC 2010

On 11/06/10 3:33 AM, jcristy at wrote:
> I am working on upgrading from 4.7.1 to 4.9.4.  I am encountering an error: "Still Waiting for
> mbuf cluster" in m_clalloc in rtems_glue.c.  It seems that in fec_RxDaemon it will allocate 5
> clusters before coming to the error.  I haven't changed anything else.  Are there any things
> that are known to cause this error that I can check for?

How much memory is allocated to the stack ?

Are you able to call 'rtems_bsdnet_show_mbuf_stats()' ?


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