On Tue, 2015-03-17 at 12:14 -0700, Craig Rodrigues wrote:
> On Tue, Mar 17, 2015 at 11:57 AM, Ian Lepore <i...@freebsd.org> wrote:
> > There is still a panic, one that I can't yet figure out why it wasn't
> > panicking before my changes, but I'm working on it.
> Can you run the kyua tests on your system?
> Those tests seem to be reproducibly triggering the problem.
Triggering it wasn't the problem, understanding why it didn't used to
fail and now it does was the tricky bit. :)
It turns out it never failed before because nobody had tried to use
default allocations (pointer and size zero) with sbuf_new_for_sysctl()
before, and it didn't fail for me while I was testing my changes because
I had commented-out INVARIANTS in my kernel config and forgotten that
(doh!) so none of the assertions were actually being tested.
So I fixed my test environment, then I fixed the code. Hopefully it's
all better now.
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