I have a weird situation in which the binary dumps core and gives bus error. But before dumping the core and throwing the buss error, it gives some output.
unfortunately I can't grep the output before core dump
db2bfd -b test.bnd
maxSect 15
Bus Error (core dumped)
when the program ran alone without redirection or pipe line, the output went to screen which was line buffered so you can see it before it died. All the other scenarios you had later involved buffering of larger amount of data. Due to the sudden death of the program the output was lost.
You can run the program under a tty program or modify the source code to make it line buffered or flush the output.
While I can't understand why someone would want to run a program that generates a SIGBUS, you might try running it with strace or truss (depending on what system you are using. You will get more of information on what it was writing before the SIGBUS.
BTW, SIGBUS means the program trying to access something using an address reference that is not compatible with the object. That means something has really screwed up and could cause really bad things to happen to your data....