Re: CA block sem corrupted error and S_errno_ENOBUFS

[Zoltan Kakucs <Zoltan.Kakucs@desy.de>]

Hi,

Also we've also experienced: CAS: TCP send to "host" failed because
"S_errno_ENOBUFS"
errors.  I believe this is a VxWorks resource issue but don't know which
resource.  Which
VxWorks resource do I need to increase?
  

we have encountered this problem on MVME162-Series using the same release of vxWorks.
This is related to the vxWorks resources *_MBUFS.

Here is a copy from my documentation describing givin the solution:

Increase the mbuf's

Edit the file ${WIND_BASE}/target/h/net/mbuf.h

+++
OLD value something like this:        #define NUM_INIT_MBUFS                40      /* number of mbufs to initialize */
NEW value:                                   #define NUM_INIT_MBUFS                100     /* number of mbufs to initialize */
---

+++
OLD value:                                    #define MAX_MBUFS             1500
NEW value:                                   #define MAX_MBUFS             3000
---

Now you should rebuild the vxWorks library.

Rebuild the vxWorks library for your preffered CPU-Type

Change to the directory ${WIND_BASE}/target/src/usr and make your changes in the *.c files
Rebuild the objects by calling make CPU=MC68040 TOOL=gnu objs,
then rebuild the library make CPU=MC68040 TOOL=gnu lib
Now you can rebuild your vxWorks image and the new features will be included

Good speed! :-)

Zoltan Kakucs
DESY Hamburg, Germany