svn commit: r303019 - head/sys/geom

[Kenneth D. Merry]

On Fri, Aug 12, 2016 at 13:38:21 +0300, Andrey V. Elsukov wrote:
> On 12.08.16 03:26, Bryan Drewery wrote:
> > On r303467 I ran into this:
> > 
> > panic @ time 1470916206.652, thread 0xfffff8000412f000:
> > g_resize_provider_event but withered
> > cpuid = 0
> > Panic occurred in module kernel loaded at 0xffffffff80200000:
> > 
> > Stack: --------------------------------------------------
> > kernel:kassert_panic+0x166
> > kernel:g_resize_provider_event+0x181
> > kernel:g_run_events+0x186^M^M
> > kernel:fork_exit+0x83^M^M
> > --------------------------------------------------
> > 
> > No further information available unfortunately.
> 
> This one is related to r302087 :)

It looks like there is a race.  I think we need to replace the KASSERT
in g_resize_provider_event() with a return in case the provider is
withered.

I won't be able to work on or test this until sometime next week.  So if
you guys want to go ahead and make the change, please do.

Ken
-- 
Kenneth Merry
ken at FreeBSD.ORG