When a worker process finds a crasher, it now sends that result
directly to the coordinator without attempting to minimize it
first. The coordinator stops sending new inputs and sends the
unminimized crasher back to a worker (any worker) for minimization.
This prevents wasted work during minimization and will help us
implement -keepfuzzing later on. We may also be able to minimize
interesting inputs with this approach later.
Since panics are recoverable errors (they don't terminate worker
processes), we no longer attempt to minimize non-recoverable errors.
This didn't work too well before: we lost too much state.
Change-Id: Id142c7e91a33f64584170b0d42d22cb1f22a92d7
Reviewed-on: https://go-review.googlesource.com/c/go/+/321835
Trust: Jay Conrod <jayconrod@google.com>
Trust: Katie Hockman <katie@golang.org>
Reviewed-by: Katie Hockman <katie@golang.org>
Adds support for minimizing strings using the same logic as byte slices
as well as minimizing both signed and unsigned integers and floats using
extremely basic logic. A more complex approach is probably warranted in
the future, but for now this should be _good enough_.
Change-Id: Ibc6c3d6ae82685998f571aa2c1ecea2f85c2708b
Reviewed-on: https://go-review.googlesource.com/c/go/+/320669
Trust: Roland Shoemaker <roland@golang.org>
Trust: Katie Hockman <katie@golang.org>
Run-TryBot: Roland Shoemaker <roland@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Katie Hockman <katie@golang.org>
Reviewed-by: Jay Conrod <jayconrod@google.com>
Jay Conrod
Roland Shoemaker