"Oliver Elphick" <olly(at)lfix(dot)co(dot)uk> writes:
> Can anyone tell me what exit code 11 means on a backend failure?
Look in <signal.h>. I believe it's SIGSEGV on most Unixen, but you
should check your machine.
In any case, getting a backtrace from the coredump would be the next
step to take.
regards, tom lane