[Beowulf] p4_error

[Mark Hahn]

> The following are usual errors that we have to counter every day::
> 
> p11_2754:(1.148519)net_recv failed for fd=3.
> p11_22754 : p_4error net_recv read,errno=:104
> p16_2754 : p4_error : interrupt S1GSEGV:11

your program on p16 seg-faults (bad address, etc - could be your program,
some library, or marginal hardware).  p11 is trying to communicate with it,
and quite sensibly reports that the socket between them has disappeared:
/usr/include/asm/errno.h:#define        ECONNRESET      104     /* Connection reset by peer */