GPF on boot with devmatch

[Warner Losh]

On Mon, Oct 5, 2020 at 12:36 PM Alexander Motin <mav at freebsd.org> wrote:

> I can add that we've received report about identical panic on FreeBSD
> releng/12.2 of r365436, AKA TrueNAS 12.0-RC1:
> https://jira.ixsystems.com/browse/NAS-107578 .  So it looks a) pretty
> rate (one report from thousands of early adopters and none in our lab),
> and b) it is in stable/12 too, not only head.
>

Thanks! I'll see if I can recreate here....  But we're accessing the sysctl
tree from devmatch to get some information, which should always be OK (the
fact that it isn't suggests either a bug in some driver leaving bad
pointers, or some race or both)...  It would be nice to know which nodes
they were, or to have a kernel panic I can look at...

Warner