The message buffer size is NOT user-adjustable on the sun3.
(Not sure about the sparc, but I think the same is true.)

Francois SCALA writes:
 > 
 > sorry if the probleme is already known.
 > sorry agin if i post to the bad mailing-list.
 > 
 > i try to change the MSGBUFSIZE in configuration file but an definition
 > conflict with param.h. 
 > 
 > i propose an little change of the folowing file to avoid the problem.
 > 
 > /sys/arch/sparc/include/param.h:
 > < #define MSGBUFSIZE      4096
 > 
 > > #ifndef MSGBUFSIZE
 > > #define MSGBUFSIZE      4096
 > > #endif /* MSGBUFSIZE */
 > 
 > the same problem appear in the following arch (same file)
 > 
 > sparc64:
 > > 
 > > #define MSGBUFSIZE      NBPG
 > >
 > 
 > sun3:
 > > 
 > > #define MSGBUFOFF       0x200
 > > #define MSGBUFSIZE      (NBPG - MSGBUFOFF)
 > > 
 > -- 
 >                            _ /
 >                            o O 
 > +-+-------------------o0Oo--o--oO0o---------------+-\
 > |o: #define Pseudo "Gx2"                          +--\
 > |o: #define EMAIL "scala@bocal.cs.univ-paris8.fr" |ooo\
 > |o: #define Home_Page "www.cs.univ-paris8.fr/~scala" :o|
 > +-+-------------------oooO-----Oooo------------------+-+
 >                        \  \   /  /
 >                         \_/   \_/
 >