> CCing the person who caused the regression is more appropriate. Assigning
> bugs to them detracts others from fixing the bug.
We already do that, and in lots of cases it doesn't work. CCing is not
coercive enough, you only receive a few more mails (and some people
don't even read their bugzilla mail).
Take PR31095, for example. It's a 4.3 regression on x86 and x86_64
that is triggered on the GCC testsuite, it has been known for more
than 2 months, Janis kindly did a reghunt a month ago to attribute it,
the patch author was added in the CC list. Since then, nothing
happened.
I'm taking this example because I was remembered about it by a mail on
the fortran list, but it has nothing specific, there are scores of
these kind out there. I think assigning regressions to people who
introduced them is only fair, after all, they are supposed to take
care of it or find someone else to do it!